/* ==========================================================================
   Muhammad Jalal Khan — Portfolio
   Design system: "Signal" — data/AI-native, teal accent, dual theme

   Contents
   01 Tokens (light / dark)          12 Disciplines (3 skill cards)
   02 Base & reset                   13 Cards: service / project / cert
   03 Layout helpers                 14 Filter bar & grids
   04 Header, nav, palette trigger   15 Featured project & case study
   05 Buttons                        16 Process steps
   06 Page transitions & progress    17 Terminal assistant
   07 Home hero + live console       18 About, timeline, chips
   08 Tool marquee                   19 Contact & Find Me Online
   09 Stats                          20 Modal (certifications)
   10 Sections & headings            21 Showpieces: dashboard, ETL, agent, skills graph
   11 Spotlight hover                22 Command palette, WhatsApp, footer, reveal
   ========================================================================== */

/* ---------- 01 Tokens ---------- */
:root {
  --bg: #FAFBFC;
  --surface: #FFFFFF;
  --surface-2: #F1F3F5;
  --text: #14181F;
  --text-muted: #5A6472;
  --accent: #0E8F7E;
  --accent-soft: #E3F5F1;
  --accent-2: #4457D6;
  --border: #E2E5E9;
  --border-strong: #CBD1D8;
  --danger: #C73E3E;
  --danger-soft: #FBEAEA;
  --warn: #B7791F;
  --bronze: #A8672E;
  --silver: #7A8494;
  --gold: #B8911A;
  --on-accent: #04140F;
  --radius: 3px;
  --shadow: 0 1px 2px rgba(20, 24, 31, 0.04), 0 8px 24px rgba(20, 24, 31, 0.05);
  --shadow-lg: 0 2px 4px rgba(20, 24, 31, 0.04), 0 24px 60px rgba(20, 24, 31, 0.10);
  --grid-line: rgba(20, 24, 31, 0.05);
  --cta-bg: #14181F;
  --cta-fg: #FAFBFC;

  --display: 'Space Grotesk', sans-serif;
  --body: 'Inter', sans-serif;
  --mono: 'JetBrains Mono', monospace;

  --ease: cubic-bezier(.2, .7, .2, 1);
  color-scheme: light;
}

:root[data-theme="dark"] {
  --bg: #0A0E13;
  --surface: #111720;
  --surface-2: #161D27;
  --text: #EAEDF1;
  --text-muted: #8B96A5;
  --accent: #35D0BA;
  --accent-soft: #14312D;
  --accent-2: #7C8CFF;
  --border: #212A36;
  --border-strong: #2F3A48;
  --danger: #FF7676;
  --danger-soft: #3A1C1F;
  --warn: #F0B35A;
  --bronze: #D7925A;
  --silver: #A7B1C0;
  --gold: #E6C458;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 12px 32px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 2px 4px rgba(0, 0, 0, 0.3), 0 30px 70px rgba(0, 0, 0, 0.5);
  --grid-line: rgba(234, 237, 241, 0.045);
  --cta-bg: #0E1B1F;
  --cta-fg: #EAEDF1;
  color-scheme: dark;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0A0E13;
    --surface: #111720;
    --surface-2: #161D27;
    --text: #EAEDF1;
    --text-muted: #8B96A5;
    --accent: #35D0BA;
    --accent-soft: #14312D;
    --accent-2: #7C8CFF;
    --border: #212A36;
    --border-strong: #2F3A48;
    --danger: #FF7676;
    --danger-soft: #3A1C1F;
    --warn: #F0B35A;
    --bronze: #D7925A;
    --silver: #A7B1C0;
    --gold: #E6C458;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 12px 32px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 2px 4px rgba(0, 0, 0, 0.3), 0 30px 70px rgba(0, 0, 0, 0.5);
    --grid-line: rgba(234, 237, 241, 0.045);
    --cta-bg: #0E1B1F;
    --cta-fg: #EAEDF1;
    color-scheme: dark;
  }
}

/* ---------- 02 Base & reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  transition: background .2s ease, color .2s ease;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4 { margin: 0; }
button { font: inherit; cursor: pointer; }
::selection { background: var(--accent); color: var(--on-accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

/* ---------- 03 Layout helpers ---------- */
.wrap {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}
@media (max-width: 720px) {
  .wrap { padding: 0 16px; }
}

.section-label {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--accent);
  margin: 0 0 14px;
}
.eyebrow {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
  margin: 0 0 16px;
}
.muted { color: var(--text-muted); }
.accent-text { color: var(--accent); }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}

/* Faint data-grid backdrop used behind heroes and CTA bands */
.grid-bg {
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 44px 44px;
}

/* ---------- 04 Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(12px) saturate(1.4);
  -webkit-backdrop-filter: blur(12px) saturate(1.4);
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease, box-shadow .2s ease;
  view-transition-name: site-header;
}
.site-header.scrolled {
  border-bottom-color: var(--border);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.04);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-top: 16px;
  padding-bottom: 16px;
}
.logo {
  font-family: var(--display);
  font-weight: 700;
  font-size: 15.5px;
  letter-spacing: -0.01em;
  text-decoration: none;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  white-space: nowrap;
}
.logo .logo-short { display: none; }
/* only the very narrowest phones fall back to the short form */
@media (max-width: 370px) {
  .site-header .logo .logo-full { display: none; }
  .site-header .logo .logo-short { display: inline; }
  .site-header .logo { font-size: 14.5px; }
}
.logo .dot { color: var(--accent); }
.logo-mark {
  width: 28px; height: 28px;
  border-radius: var(--radius);
  background: var(--text);
  color: var(--bg);
  display: grid; place-items: center;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-links a {
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  color: var(--text-muted);
  padding: 7px 11px;
  border-radius: 100px;
  transition: color .15s ease, background .15s ease;
}
.nav-links a:hover { color: var(--text); background: var(--surface-2); }
.nav-links a.active { color: var(--text); background: var(--surface-2); }

.nav-actions { display: flex; align-items: center; gap: 10px; }

.icon-btn, .theme-toggle, .nav-toggle {
  width: 38px; height: 38px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  display: flex; align-items: center; justify-content: center;
  transition: border-color .15s ease, transform .15s ease;
}
.icon-btn:hover, .theme-toggle:hover, .nav-toggle:hover { border-color: var(--border-strong); }
.theme-toggle svg { width: 17px; height: 17px; }
.theme-toggle .icon-moon { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-moon { display: block; }

.palette-trigger {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 38px;
  padding: 0 8px 0 12px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-muted);
  font-size: 13px;
  transition: border-color .15s ease, color .15s ease;
}
.palette-trigger:hover { border-color: var(--border-strong); color: var(--text); }
.palette-trigger svg { width: 15px; height: 15px; }
kbd, .kbd {
  font-family: var(--mono);
  font-size: 11px;
  padding: 3px 7px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text-muted);
}

.nav-toggle { display: none; }

@media (max-width: 1080px) {
  .palette-trigger .pt-label, .palette-trigger kbd { display: none; }
  .palette-trigger { width: 38px; padding: 0; justify-content: center; }
}
@media (max-width: 920px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    padding: 12px 16px 18px;
    gap: 2px;
  }
  .nav-links.open a { padding: 12px 14px; border-radius: var(--radius); font-size: 15px; }
}

/* ---------- 05 Buttons ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 14px;
  padding: 12px 20px;
  border-radius: var(--radius);
  text-decoration: none;
  border: 1px solid transparent;
  overflow: hidden;
  transition: transform .15s var(--ease), box-shadow .2s ease, border-color .15s ease, background .15s ease;
}
.btn svg { width: 16px; height: 16px; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-primary:hover {
  box-shadow: 0 8px 24px color-mix(in srgb, var(--accent) 35%, transparent);
  transform: translateY(-1px);
}
/* light sweep across primary buttons on hover */
.btn-primary::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(110deg, transparent 30%, rgba(255,255,255,.35) 50%, transparent 70%);
  transform: translateX(-120%);
  transition: transform .7s var(--ease);
}
.btn-primary:hover::after { transform: translateX(120%); }
.btn-ghost { background: var(--surface); border-color: var(--border); color: var(--text); }
.btn-ghost:hover { border-color: var(--text-muted); transform: translateY(-1px); }
.btn-sm { padding: 8px 14px; font-size: 13px; }
.btn[disabled] { opacity: .55; cursor: not-allowed; transform: none; }

/* ---------- 06 Page transitions & scroll progress ---------- */
@view-transition { navigation: auto; }
::view-transition-old(root) { animation: vt-out .22s ease both; }
::view-transition-new(root) { animation: vt-in .38s var(--ease) both; }
@keyframes vt-out { to { opacity: 0; transform: translateY(-6px); } }
@keyframes vt-in { from { opacity: 0; transform: translateY(10px); } }

.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 100%;
  transform-origin: 0 50%;
  transform: scaleX(0);
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  z-index: 300;
  pointer-events: none;
}

/* ---------- 07 Home hero + live console ---------- */
.hero-shell {
  position: relative;
  overflow: hidden;
}
.hero-shell::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 80% 70% at 60% 40%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 60% 40%, #000 30%, transparent 75%);
  pointer-events: none;
}
.hero-shell::after {
  content: '';
  position: absolute;
  top: -120px; right: -120px;
  width: 560px; height: 560px;
  background: radial-gradient(circle, var(--accent) 0%, transparent 65%);
  opacity: 0.13;
  filter: blur(50px);
  pointer-events: none;
}
.hero {
  position: relative;
  z-index: 1;
  padding-top: 72px;
  padding-bottom: 84px;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
}
@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; padding-top: 40px; padding-bottom: 56px; gap: 40px; }
}

.hero-id {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 26px;
}
.avatar {
  position: relative;
  width: 92px; height: 92px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--accent-soft);
  color: var(--accent);
  display: grid; place-items: center;
  font-family: var(--display);
  font-weight: 700;
  font-size: 18px;
  box-shadow: 0 0 0 3px var(--bg), 0 0 0 4px var(--border);
}
/* the photo sits over the initials; if profile.jpg is missing, onerror removes it */
.avatar img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  border-radius: 50%;
  object-fit: cover;
}
.hero-now {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text-muted);
  margin: -14px 0 30px;
  min-height: 1.5em;
}
.avatar-lg { width: 180px; height: 180px; font-size: 52px; }
@media (max-width: 720px) { .avatar-lg { width: 140px; height: 140px; font-size: 42px; } }

/* ---------- Credential badges ----------
   Badge art is designed for white backgrounds, so each badge sits on its own
   light plaque in BOTH themes — otherwise dark badge art vanishes in dark mode. */
.badge-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
@media (max-width: 860px) { .badge-strip { grid-template-columns: repeat(2, 1fr); } }
.badge-item {
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 0;            /* grid items must be allowed to shrink */
  padding: 16px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  text-decoration: none;
  color: inherit;
  transition: transform .25s var(--ease), border-color .2s ease, box-shadow .25s ease;
}
.badge-item:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--accent) 60%, var(--border));
  box-shadow: var(--shadow-lg);
}
.badge-plaque {
  flex-shrink: 0;
  width: 74px; height: 74px;
  border-radius: 8px;
  background: #FFFFFF;
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  padding: 7px;
  overflow: hidden;
}
/* max-* rather than width/height:100% — the badges have different aspect ratios,
   and a percentage height against an auto-sized row lets portrait badges spill out */
.badge-plaque img {
  max-width: 100%; max-height: 100%;
  width: auto; height: auto;
  object-fit: contain;
}
.badge-item .bi-text { min-width: 0; overflow-wrap: anywhere; }
.badge-item .bi-issuer {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--accent);
  display: block;
  margin-bottom: 5px;
  letter-spacing: .02em;
}
.badge-item .bi-name {
  font-family: var(--display);
  font-weight: 600;
  font-size: 14px;
  line-height: 1.3;
  display: block;
}
.badge-item .bi-meta { font-size: 12px; color: var(--text-muted); margin-top: 4px; display: block; }
@media (max-width: 520px) {
  .badge-item { padding: 14px; gap: 12px; }
  .badge-plaque { width: 60px; height: 60px; }
  .badge-item .bi-name { font-size: 13px; }
}
/* larger, centred treatment for the Certifications page band */
.badge-strip.featured .badge-item { flex-direction: column; text-align: center; gap: 14px; padding: 26px 18px; }
.badge-strip.featured .badge-plaque { width: 104px; height: 104px; }
@media (max-width: 520px) {
  .badge-strip.featured .badge-item { flex-direction: row; text-align: left; padding: 14px; gap: 12px; }
  .badge-strip.featured .badge-plaque { width: 62px; height: 62px; }
}
/* one column on narrow phones — two would force each card below its content width */
@media (max-width: 460px) { .badge-strip { grid-template-columns: 1fr; } }
.hero-id .who strong { display: block; font-family: var(--display); font-size: 18px; }
.hero-id .who span { font-size: 14px; color: var(--text-muted); }

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-muted);
  padding: 6px 12px 6px 10px;
  border: 1px solid var(--border);
  border-radius: 100px;
  background: var(--surface);
  margin-bottom: 22px;
}
.live-dot {
  position: relative;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}
.live-dot::after {
  content: '';
  position: absolute; inset: -4px;
  border-radius: 50%;
  border: 1.5px solid var(--accent);
  animation: ping 2s ease-out infinite;
}
@keyframes ping {
  0% { transform: scale(.5); opacity: .9; }
  100% { transform: scale(1.8); opacity: 0; }
}

.hero h1 {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.04;
  letter-spacing: -0.025em;
  margin-bottom: 22px;
}
.grad-text {
  background: linear-gradient(100deg, var(--accent) 10%, var(--accent-2) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p.lede {
  font-size: 17.5px;
  line-height: 1.65;
  color: var(--text-muted);
  max-width: 52ch;
  margin: 0 0 32px;
}
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; }

.rotator {
  display: inline-block;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.9em;
  border-right: 2px solid var(--accent);
  padding-right: 3px;
  animation: caret 1s steps(1) infinite;
  white-space: nowrap;
}
@keyframes caret { 50% { border-color: transparent; } }

/* The "console" card that frames live visuals (hero canvas, demos) */
.console {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.console-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--surface-2);
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--text-muted);
}
.console-dots { display: flex; gap: 6px; }
.console-dots i {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--border-strong);
}
.console-bar .title { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.console-bar .live {
  display: inline-flex; align-items: center; gap: 7px;
  color: var(--accent);
}
.console-bar .live .live-dot { width: 6px; height: 6px; }
.console-bar .live .live-dot::after { inset: -3px; }

.hero-canvas-wrap { position: relative; height: 340px; }
.hero-canvas-wrap canvas { width: 100%; height: 100%; display: block; }
@media (max-width: 520px) { .hero-canvas-wrap { height: 280px; } }

.console-foot {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--border);
}
.console-foot div {
  padding: 12px 14px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-muted);
  border-left: 1px solid var(--border);
}
.console-foot div:first-child { border-left: none; }
.console-foot b {
  display: block;
  font-weight: 500;
  font-size: 15px;
  color: var(--text);
  margin-top: 2px;
  font-variant-numeric: tabular-nums;
}

/* ---------- 08 Tool marquee ---------- */
.marquee {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  padding: 18px 0;
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}
.marquee-track {
  display: flex;
  gap: 48px;
  width: max-content;
  animation: marquee 40s linear infinite;
}
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-track span {
  font-family: var(--mono);
  font-size: 13.5px;
  color: var(--text-muted);
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 48px;
}
.marquee-track span::after {
  content: '';
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--accent);
  opacity: .6;
}
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- 09 Stats ---------- */
.stats { padding: 44px 0; }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
@media (max-width: 720px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}
.stat { padding-left: 18px; border-left: 2px solid var(--border); }
.stat .num {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(30px, 4vw, 42px);
  color: var(--text);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}
.stat .label {
  font-size: 13.5px;
  color: var(--text-muted);
  margin-top: 6px;
}

/* ---------- 10 Sections & headings ---------- */
.block { padding-top: 96px; padding-bottom: 96px; }
@media (max-width: 720px) { .block { padding-top: 60px; padding-bottom: 60px; } }
.block-tight { padding-top: 0 !important; }
.block-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 40px;
  gap: 20px;
  flex-wrap: wrap;
}
.block-head h2, .h2 {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(26px, 3.4vw, 38px);
  letter-spacing: -0.015em;
  line-height: 1.12;
}
.block-head p { color: var(--text-muted); max-width: 52ch; margin: 12px 0 0; font-size: 15.5px; line-height: 1.6; }
.block-head .see-all {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  white-space: nowrap;
}
.block-head .see-all:hover { text-decoration: underline; text-underline-offset: 4px; }
.band { background: var(--surface-2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.page-hero {
  position: relative;
  padding-top: 64px;
  padding-bottom: 28px;
}
.page-hero .eyebrow { margin-bottom: 14px; }
.page-hero h1 {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(32px, 4.6vw, 52px);
  margin-bottom: 16px;
  letter-spacing: -0.02em;
  line-height: 1.08;
}
.page-hero p.lede {
  font-size: 17px;
  color: var(--text-muted);
  max-width: 58ch;
  line-height: 1.65;
  margin: 0;
}
.crumb { color: var(--accent); text-decoration: none; }
.crumb:hover { text-decoration: underline; text-underline-offset: 4px; }

.page-hero-visual {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  align-items: center;
}
@media (max-width: 860px) { .page-hero-visual { grid-template-columns: 1fr; } }
.visual-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
  box-shadow: var(--shadow);
}
.visual-card svg { width: 100%; height: auto; display: block; }

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
@media (max-width: 860px) { .two-col { grid-template-columns: 1fr; gap: 28px; } }

.check-list li {
  position: relative;
  padding: 14px 0 14px 34px;
  border-top: 1px solid var(--border);
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-muted);
}
.check-list li:first-child { border-top: none; padding-top: 0; }
.check-list li:first-child::before { top: 3px; }
.check-list li strong { color: var(--text); display: block; margin-bottom: 2px; font-weight: 600; }
.check-list li::before {
  content: '';
  position: absolute; left: 0; top: 17px;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--accent-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230E8F7E' stroke-width='3'%3E%3Cpath d='m5 12 5 5 9-10'/%3E%3C/svg%3E") center / 12px no-repeat;
}

/* ---------- 11 Spotlight hover (cursor-following glow on cards) ---------- */
.spot { position: relative; isolation: isolate; }
.spot::before {
  content: '';
  position: absolute; inset: 0;
  border-radius: inherit;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%), color-mix(in srgb, var(--accent) 10%, transparent), transparent 45%);
  opacity: 0;
  transition: opacity .3s ease;
  pointer-events: none;
  z-index: -1;
}
.spot:hover::before { opacity: 1; }

/* ---------- 12 Disciplines (the three skills) ---------- */
.disc-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 960px) { .disc-grid { grid-template-columns: 1fr; } }
.disc-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  transition: transform .25s var(--ease), border-color .2s ease, box-shadow .25s ease;
}
.disc-card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent) 60%, var(--border));
  box-shadow: var(--shadow-lg);
}
.disc-visual {
  height: 190px;
  border-bottom: 1px solid var(--border);
  background: var(--surface-2);
  position: relative;
  overflow: hidden;
  display: grid;
  place-items: center;
}
.disc-visual svg { width: 100%; height: 100%; }
.disc-body { padding: 26px; display: flex; flex-direction: column; flex: 1; }
.disc-body .tag {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--accent);
  margin-bottom: 12px;
}
.disc-body h3 { font-family: var(--display); font-size: 21px; margin-bottom: 10px; letter-spacing: -0.01em; }
.disc-body p { font-size: 14.5px; line-height: 1.65; color: var(--text-muted); margin: 0 0 18px; flex: 1; }
.disc-body .chip-row { margin-bottom: 20px; }
.disc-link {
  font-size: 13.5px; font-weight: 600; color: var(--accent);
  display: inline-flex; align-items: center; gap: 6px;
}
.disc-link svg { width: 14px; height: 14px; transition: transform .2s var(--ease); }
.disc-card:hover .disc-link svg { transform: translateX(4px); }

/* mini animated visuals inside discipline cards */
.mv-bar { transform-box: fill-box; transform-origin: bottom; animation: mv-grow 3.2s var(--ease) infinite alternate; }
.mv-bar:nth-child(2) { animation-delay: .2s; }
.mv-bar:nth-child(3) { animation-delay: .4s; }
.mv-bar:nth-child(4) { animation-delay: .6s; }
.mv-bar:nth-child(5) { animation-delay: .8s; }
.mv-bar:nth-child(6) { animation-delay: 1s; }
@keyframes mv-grow { 0% { transform: scaleY(.35); } 100% { transform: scaleY(1); } }
.mv-line { stroke-dasharray: 400; stroke-dashoffset: 400; animation: mv-draw 3.2s var(--ease) infinite alternate; }
@keyframes mv-draw { to { stroke-dashoffset: 0; } }
.mv-flow { stroke-dasharray: 4 6; animation: mv-dash 1s linear infinite; }
@keyframes mv-dash { to { stroke-dashoffset: -20; } }
.mv-pulse { transform-box: fill-box; transform-origin: center; animation: mv-pulse 2s ease-in-out infinite; }
@keyframes mv-pulse { 50% { transform: scale(1.12); opacity: .8; } }
.mv-packet { animation: mv-packet 2.4s linear infinite; }
@keyframes mv-packet { 0% { opacity: 0; } 10%, 90% { opacity: 1; } 100% { opacity: 0; } }

/* ---------- 13 Cards: service / project / cert ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 900px) { .services-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 620px) { .services-grid { grid-template-columns: 1fr; } }
.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 28px;
  transition: transform .25s var(--ease), border-color .2s ease, box-shadow .25s ease;
}
.service-card .tag {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--accent);
  margin-bottom: 14px;
  display: block;
}
.service-card h3 {
  font-family: var(--display);
  font-size: 18px;
  margin-bottom: 10px;
}
.service-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
  margin: 0;
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform .25s var(--ease), border-color .2s ease, box-shadow .25s ease, opacity .3s ease;
}
/* Thumbnails never crop: the whole screenshot sits inside a fixed frame. */
.project-card .thumb-sm {
  aspect-ratio: 16 / 10;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
  text-align: center;
  overflow: hidden;
}
.project-card .thumb-sm img {
  width: 100%; height: 100%;
  object-fit: contain;
  border-radius: 3px;
  filter: drop-shadow(0 2px 8px rgba(20, 24, 31, .10));
}
[data-theme="dark"] .project-card .thumb-sm img { filter: drop-shadow(0 2px 10px rgba(0, 0, 0, .5)); }

/* hover gallery: a single image fading between screenshots, with progress dots */
.project-card .thumb-sm { position: relative; }
.project-card .thumb-sm img { transition: opacity .22s ease; }
.thumb-dots {
  position: absolute;
  bottom: 8px; left: 50%;
  transform: translateX(-50%);
  display: flex; gap: 5px;
  padding: 4px 7px;
  border-radius: 100px;
  background: color-mix(in srgb, var(--surface) 78%, transparent);
  backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity .25s ease;
}
.thumb-sm.cycling .thumb-dots, .project-card:hover .thumb-dots { opacity: 1; }
.thumb-dots i {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--border-strong);
  transition: background .25s ease;
}
.thumb-dots i.on { background: var(--accent); }
.project-card .thumb-sm svg { width: 100%; height: 100%; }
.project-card .pc-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.project-card .pc-tag {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--accent);
  margin-bottom: 10px;
}
.project-card h3 {
  font-family: var(--display);
  font-size: 17px;
  line-height: 1.35;
  margin-bottom: 10px;
}
.project-card p {
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0 0 16px;
  flex: 1;
}
.project-card .pc-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
}
.project-card .pc-link::after { content: ''; position: absolute; inset: 0; } /* whole card clickable */

.service-card:hover,
.project-card:hover,
.cert-card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent) 60%, var(--border));
  box-shadow: var(--shadow-lg);
}
@media (prefers-reduced-motion: reduce) {
  .service-card:hover, .project-card:hover, .cert-card:hover, .disc-card:hover { transform: none; }
}

.cert-card { cursor: pointer; }
.cert-card .thumb-sm { height: 150px; padding: 18px; }
.cert-card .thumb-sm img { width: auto; height: 100%; object-fit: contain; }
.cert-card .cert-meta {
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--mono); font-size: 11px; color: var(--text-muted);
}
.cert-card .cert-meta .view { color: var(--accent); }

.placeholder-note {
  grid-column: 1 / -1;
  border: 1px dashed var(--border-strong);
  border-radius: 8px;
  padding: 22px;
  font-size: 13.5px;
  color: var(--text-muted);
  text-align: center;
}
.placeholder-note strong { color: var(--text); }

/* ---------- 14 Filter bar & grids ---------- */
.filter-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  padding: 28px 0 36px;
}
.filter-btn {
  font-family: var(--mono);
  font-size: 12.5px;
  padding: 9px 16px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-muted);
  transition: all .15s ease;
}
.filter-btn:hover { color: var(--text); border-color: var(--text-muted); }
.filter-btn.active {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}
.filter-btn .count { opacity: .6; margin-left: 4px; }

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  padding-bottom: 96px;
}
@media (max-width: 900px) { .grid-3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 620px) { .grid-3 { grid-template-columns: 1fr; } }

.is-filtered-out { display: none !important; }
.filter-in { animation: filter-in .45s var(--ease) both; }
@keyframes filter-in { from { opacity: 0; transform: translateY(12px) scale(.98); } }

/* ---------- 15 Featured project & case study ---------- */
.project-feature {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  transition: border-color .2s ease, box-shadow .25s ease;
}
.project-feature:hover { border-color: color-mix(in srgb, var(--accent) 50%, var(--border)); box-shadow: var(--shadow-lg); }
@media (max-width: 860px) { .project-feature { grid-template-columns: 1fr; } }
.project-feature .thumb {
  background: var(--surface-2);
  border-right: 1px solid var(--border);
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
@media (max-width: 860px) { .project-feature .thumb { border-right: none; border-bottom: 1px solid var(--border); } }
.project-feature .thumb svg { width: 100%; max-width: 440px; height: auto; }
.project-feature .body { padding: 36px; }
.pf-badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 5px 11px;
  border-radius: 100px;
  margin-bottom: 16px;
}
.project-feature h3 {
  font-family: var(--display);
  font-size: 23px;
  margin-bottom: 12px;
  line-height: 1.25;
  letter-spacing: -0.01em;
}
.project-feature p {
  font-size: 14.5px;
  color: var(--text-muted);
  line-height: 1.7;
  margin: 0 0 18px;
}
.tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.tag-row span {
  font-family: var(--mono);
  font-size: 11px;
  border: 1px solid var(--border);
  padding: 5px 10px;
  border-radius: var(--radius);
  color: var(--text-muted);
}

/* star schema diagram: tables draw in, links animate */
.schema .tbl rect.head { fill: var(--accent); }
.schema .tbl rect.box { fill: var(--surface); stroke: var(--border-strong); }
.schema .tbl.fact rect.box { stroke: var(--accent); stroke-width: 1.5; }
.schema .tbl text { font-family: var(--mono); font-size: 9.5px; fill: var(--text-muted); }
.schema .tbl text.name { fill: var(--on-accent); font-weight: 500; font-size: 10px; }
.schema .tbl text.key { fill: var(--accent); }
.schema .link { stroke: var(--accent); stroke-width: 1.3; fill: none; stroke-dasharray: 4 5; animation: mv-dash 1.2s linear infinite; opacity: .8; }

.case-meta {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  margin-top: 32px;
}
@media (max-width: 720px) { .case-meta { grid-template-columns: 1fr 1fr; } }
.case-meta div { padding: 18px 20px; border-left: 1px solid var(--border); }
.case-meta div:first-child { border-left: none; }
@media (max-width: 720px) {
  .case-meta div:nth-child(3) { border-left: none; }
  .case-meta div:nth-child(n+3) { border-top: 1px solid var(--border); }
}
.case-meta span { display: block; font-family: var(--mono); font-size: 11px; color: var(--text-muted); margin-bottom: 6px; }
.case-meta strong { font-size: 14.5px; font-weight: 600; }

.case-section { display: grid; grid-template-columns: 220px 1fr; gap: 40px; padding: 40px 0; border-top: 1px solid var(--border); }
@media (max-width: 760px) { .case-section { grid-template-columns: 1fr; gap: 12px; } }
.case-section h2 { font-family: var(--display); font-size: 20px; }
.case-section .n { font-family: var(--mono); font-size: 12px; color: var(--accent); display: block; margin-bottom: 8px; }
.case-section p { font-size: 16px; color: var(--text-muted); line-height: 1.8; margin: 0 0 14px; max-width: 68ch; }

/* ---------- 16 Process steps ---------- */
.process {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  counter-reset: step;
  position: relative;
}
@media (max-width: 900px) { .process { grid-template-columns: 1fr; } }
.process-step {
  position: relative;
  padding: 0 20px 0 0;
}
.process-step .dot {
  width: 38px; height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  display: grid; place-items: center;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  margin-bottom: 18px;
  position: relative;
  z-index: 1;
  transition: background .3s ease, color .3s ease, border-color .3s ease;
}
.process-step::before {
  content: '';
  position: absolute;
  top: 19px; left: 38px; right: 0;
  height: 1px;
  background: var(--border);
}
.process-step:last-child::before { display: none; }
.process-step.visible .dot { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
.process-step h3 { font-family: var(--display); font-size: 17px; margin-bottom: 8px; }
.process-step p { font-size: 13.5px; color: var(--text-muted); line-height: 1.6; margin: 0; }
@media (max-width: 900px) {
  .process-step { padding: 0 0 28px 56px; }
  .process-step .dot { position: absolute; left: 0; top: 0; }
  .process-step::before { top: 38px; bottom: 0; left: 19px; right: auto; width: 1px; height: auto; }
}

/* ---------- 17 Terminal assistant ---------- */
.terminal {
  background: #0B1017;
  color: #D6DEE8;
  border: 1px solid #1F2934;
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  font-family: var(--mono);
  font-size: 13px;
}
.terminal .console-bar { background: #0F151E; border-bottom-color: #1F2934; color: #7F8B9B; }
.terminal .console-dots i:nth-child(1) { background: #FF5F57; }
.terminal .console-dots i:nth-child(2) { background: #FEBC2E; }
.terminal .console-dots i:nth-child(3) { background: #28C840; }
.term-body {
  height: 340px;
  overflow-y: auto;
  padding: 18px 18px 8px;
  line-height: 1.7;
  scrollbar-width: thin;
  scrollbar-color: #2A3542 transparent;
}
.term-line { margin: 0 0 10px; white-space: pre-wrap; word-wrap: break-word; }
.term-line .prompt { color: #35D0BA; }
.term-line .path { color: #7C8CFF; }
.term-line.user { color: #FFFFFF; }
.term-line.sys { color: #7F8B9B; }
.term-line.bot a { color: #35D0BA; }
.term-line.bot strong { color: #FFFFFF; font-weight: 500; }
.term-cursor::after {
  content: 'â–‹';
  color: #35D0BA;
  animation: caret 1s steps(1) infinite;
  margin-left: 2px;
}
.term-suggest {
  display: flex; flex-wrap: wrap; gap: 8px;
  padding: 10px 18px;
  border-top: 1px solid #1F2934;
}
.term-suggest button {
  font-family: var(--mono);
  font-size: 11.5px;
  color: #AAB5C3;
  background: #131B25;
  border: 1px solid #243140;
  border-radius: 100px;
  padding: 5px 11px;
  transition: color .15s ease, border-color .15s ease;
}
.term-suggest button:hover { color: #35D0BA; border-color: #35D0BA; }
.term-input {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 18px 14px;
  border-top: 1px solid #1F2934;
}
.term-input label { color: #35D0BA; white-space: nowrap; }
.term-input input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: none;
  outline: none;
  color: #FFFFFF;
  font-family: var(--mono);
  font-size: 13px;
  caret-color: #35D0BA;
}
.term-input input::placeholder { color: #56626F; }

/* ---------- 18 About, timeline, chips ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
@media (max-width: 860px) { .about-grid { grid-template-columns: 1fr; } }
.about-grid p, .prose p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-muted);
  margin: 0 0 16px;
}
.about-grid strong, .prose strong { color: var(--text); }

.about-hero {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 56px;
  align-items: center;
}
@media (max-width: 860px) { .about-hero { grid-template-columns: 260px 1fr; gap: 36px; } }
@media (max-width: 640px) { .about-hero { grid-template-columns: 1fr; gap: 28px; } }

/* About page portrait — full 3:4 photo, not a small circle */
.portrait {
  margin: 0;
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  background: var(--surface-2);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
}
.portrait img { width: 100%; height: auto; display: block; }
/* subtle brand wash so the studio white doesn't read as a cut-out */
.portrait::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 55%, color-mix(in srgb, var(--accent) 16%, transparent) 100%);
  pointer-events: none;
}
@media (max-width: 640px) {
  .portrait { max-width: 300px; }
}

.chip-row { display: flex; flex-wrap: wrap; gap: 8px; }
/* grouped stack (About page) — reads as a toolkit, not a pile of logos */
.stack-groups { display: flex; flex-direction: column; gap: 20px; margin-top: 24px; }
.stack-group .sg-label {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}
.chip {
  font-family: var(--mono);
  font-size: 12px;
  border: 1px solid var(--border);
  padding: 6px 11px;
  border-radius: var(--radius);
  color: var(--text);
  background: var(--surface);
  transition: border-color .15s ease, color .15s ease, background .15s ease;
}
.chip-sm { font-size: 11px; padding: 4px 9px; }

.timeline { position: relative; padding-left: 36px; display: flex; flex-direction: column; gap: 36px; }
.timeline::before, .timeline-progress {
  content: '';
  position: absolute; left: 5px; top: 6px; bottom: 6px;
  width: 2px;
  background: var(--border);
}
.timeline-progress {
  background: linear-gradient(var(--accent), var(--accent-2));
  transform-origin: top;
  transform: scaleY(var(--tl, 0));
  transition: transform .1s linear;
}
.timeline-item { position: relative; }
.timeline-item::before {
  content: '';
  position: absolute; left: -36px; top: 3px;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--border-strong);
  transition: border-color .3s ease, background .3s ease, box-shadow .3s ease;
  z-index: 1;
}
.timeline-item.visible::before {
  border-color: var(--accent);
  background: var(--accent);
  box-shadow: 0 0 0 5px color-mix(in srgb, var(--accent) 20%, transparent);
}
.timeline-item .t-date { font-family: var(--mono); font-size: 12px; color: var(--accent); margin-bottom: 6px; display: block; }
.timeline-item h3 { font-family: var(--display); font-size: 19px; margin-bottom: 6px; }
.timeline-item p { font-size: 15px; color: var(--text-muted); line-height: 1.65; margin: 0; max-width: 62ch; }

/* ---------- CTA band ---------- */
.cta-band {
  position: relative;
  overflow: hidden;
  background: var(--cta-bg);
  color: var(--cta-fg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 64px 40px;
  text-align: center;
}
.cta-band::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: radial-gradient(ellipse at center, #000 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 20%, transparent 70%);
}
.cta-band::after {
  content: '';
  position: absolute;
  width: 480px; height: 480px;
  left: 50%; top: 100%;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, var(--accent), transparent 65%);
  opacity: .35;
  filter: blur(40px);
}
.cta-band > * { position: relative; z-index: 1; }
.cta-band h2 {
  font-family: var(--display);
  font-size: clamp(24px, 3.4vw, 36px);
  letter-spacing: -0.015em;
  margin-bottom: 14px;
}
.cta-band p { color: color-mix(in srgb, var(--cta-fg) 70%, var(--cta-bg)); margin: 0 auto 28px; max-width: 52ch; line-height: 1.6; }
.cta-band .cta-row { justify-content: center; }
.cta-band .btn-ghost { background: transparent; color: var(--cta-fg); border-color: color-mix(in srgb, var(--cta-fg) 30%, transparent); }
.cta-band .btn-ghost:hover { border-color: var(--cta-fg); }
@media (max-width: 620px) { .cta-band { padding: 48px 22px; } }

/* ---------- 19 Contact & Find Me Online ---------- */
.contact-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: start; }
@media (max-width: 860px) { .contact-grid { grid-template-columns: 1fr; } }
.form-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 32px;
  box-shadow: var(--shadow);
}
@media (max-width: 520px) { .form-card { padding: 22px; } }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 520px) { .form-row { grid-template-columns: 1fr; } }
.form-field { margin-bottom: 18px; }
.form-field label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 8px; }
.form-field input, .form-field textarea, .form-field select {
  width: 100%; padding: 12px 14px; border-radius: var(--radius); border: 1px solid var(--border);
  background: var(--bg); color: var(--text); font-family: var(--body); font-size: 14px;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.form-field input:focus, .form-field textarea:focus, .form-field select:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
}
.form-field textarea { min-height: 140px; resize: vertical; }
.topic-group { display: flex; flex-wrap: wrap; gap: 8px; }
/* visually hidden, but NOT width:100% — these inherit the .form-field input rule,
   and an absolutely positioned 100%-wide input overflows the page */
.topic-group input {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px; border: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
}
.topic-group label {
  font-family: var(--mono); font-size: 12px; font-weight: 400;
  padding: 8px 13px; margin: 0;
  border: 1px solid var(--border); border-radius: 100px;
  color: var(--text-muted); cursor: pointer;
  transition: all .15s ease;
}
.topic-group input:checked + label { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }
.topic-group input:focus-visible + label { outline: 2px solid var(--accent); outline-offset: 2px; }
.form-note { font-size: 12.5px; color: var(--text-muted); margin: 14px 0 0; }
.form-status {
  display: none;
  margin-top: 16px;
  padding: 12px 14px;
  border-radius: var(--radius);
  font-size: 14px;
}
.form-status.show { display: block; }
.form-status.ok { background: var(--accent-soft); color: var(--accent); }
.form-status.err { background: var(--danger-soft); color: var(--danger); }

.contact-side { display: flex; flex-direction: column; gap: 20px; }
.contact-info-card { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 26px; }
.contact-info-card .row { display: flex; justify-content: space-between; gap: 12px; padding: 12px 0; border-top: 1px solid var(--border); font-size: 14px; }
.contact-info-card .row:first-child { border-top: none; padding-top: 0; }
.contact-info-card .row span:first-child { color: var(--text-muted); }
.contact-info-card .row a { color: var(--accent); text-decoration: none; font-weight: 600; }

.find-online-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 26px;
}
.find-online-card h3 {
  font-family: var(--display);
  font-size: 18px;
  margin-bottom: 18px;
}
.link-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 16px;
}
@media (max-width: 400px) { .link-grid { grid-template-columns: 1fr; } }
.link-row {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  padding: 7px 0;
  transition: color .15s ease, transform .15s ease;
}
.link-row:hover { color: var(--accent); transform: translateX(3px); }
.link-icon {
  width: 34px; height: 34px;
  border-radius: 100px;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.link-icon svg { width: 16px; height: 16px; }

/* ---------- 20 Modal (certifications) ---------- */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(5, 8, 12, 0.6);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
  z-index: 400; padding: 24px;
  opacity: 0; visibility: hidden;
  transition: opacity .2s ease, visibility .2s ease;
}
.modal-overlay.open { opacity: 1; visibility: visible; }
.modal-box {
  background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
  max-width: 480px; width: 100%; padding: 30px; position: relative;
  box-shadow: var(--shadow-lg);
  transform: translateY(12px) scale(.98);
  transition: transform .3s var(--ease);
}
.modal-overlay.open .modal-box { transform: none; }
.modal-close {
  position: absolute; top: 14px; right: 14px;
  width: 32px; height: 32px; border-radius: 100px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
  display: flex; align-items: center; justify-content: center;
}
.modal-box .modal-thumb {
  height: 190px; background: var(--surface-2); border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--mono); font-size: 11px; color: var(--accent);
  margin-bottom: 20px; text-align: center; padding: 14px;
}
.modal-box .modal-thumb img { max-height: 100%; width: auto; object-fit: contain; }
.modal-box h3 { font-family: var(--display); font-size: 20px; margin-bottom: 8px; padding-right: 30px; }
.modal-box p.issuer { font-size: 13.5px; color: var(--text-muted); margin: 0 0 22px; }
.cert-note {
  border: 1px dashed var(--border-strong); border-radius: 8px;
  padding: 16px 20px; font-size: 13.5px; color: var(--text-muted);
  margin-bottom: 28px;
}
.cert-note strong { color: var(--text); }

/* ==========================================================================
   21 Showpieces
   ========================================================================== */

/* ---------- Shared demo chrome ---------- */
.demo-head {
  display: flex; justify-content: space-between; align-items: flex-end;
  gap: 20px; flex-wrap: wrap; margin-bottom: 24px;
}
.demo-head h2 { font-family: var(--display); font-size: clamp(24px, 3vw, 32px); letter-spacing: -0.015em; }
.demo-head p { margin: 10px 0 0; color: var(--text-muted); max-width: 60ch; line-height: 1.6; font-size: 15px; }
.demo-badge {
  font-family: var(--mono); font-size: 11px; color: var(--text-muted);
  border: 1px solid var(--border); border-radius: 100px; padding: 5px 11px;
  display: inline-flex; align-items: center; gap: 7px;
}
.seg {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 3px;
  background: var(--surface);
}
.seg button {
  font-family: var(--mono);
  font-size: 12px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: 100px;
  transition: all .15s ease;
}
.seg button:hover { color: var(--text); }
.seg button.active { background: var(--text); color: var(--bg); }

/* ---------- Dashboard (Data Analytics & BI) ---------- */
.dash {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.dash-toolbar {
  display: flex; flex-wrap: wrap; align-items: center; gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--surface-2);
}
.dash-toolbar .sp { flex: 1; }
.dash-toolbar .lbl { font-family: var(--mono); font-size: 11px; color: var(--text-muted); }
.dash-filter-chip {
  display: none;
  align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 11.5px;
  color: var(--accent); background: var(--accent-soft);
  border-radius: 100px; padding: 5px 6px 5px 11px;
}
.dash-filter-chip.show { display: inline-flex; }
.dash-filter-chip button {
  border: none; background: transparent; color: inherit; padding: 0 4px; font-size: 14px; line-height: 1;
}
.dash-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
}
.dash-grid > * { background: var(--surface); }
.kpi { padding: 18px 20px; background: var(--surface); min-width: 0; }
.kpi .k-label { font-size: 12.5px; color: var(--text-muted); }
.kpi .k-val {
  font-family: var(--display); font-weight: 700; font-size: 26px;
  margin: 6px 0 4px; font-variant-numeric: tabular-nums; letter-spacing: -0.01em;
}
.kpi .k-delta { font-family: var(--mono); font-size: 11.5px; }
.k-delta.up { color: var(--accent); }
.k-delta.down { color: var(--danger); }
.kpi svg { width: 100%; height: 28px; margin-top: 8px; display: block; }
.panel { padding: 18px 20px 14px; min-width: 0; }
.panel-wide { grid-column: span 3; }
.panel-full { grid-column: 1 / -1; }
.panel-title {
  display: flex; justify-content: space-between; align-items: baseline; gap: 12px;
  font-size: 13.5px; font-weight: 600; margin-bottom: 12px;
}
.panel-title span { font-family: var(--mono); font-size: 11px; font-weight: 400; color: var(--text-muted); }
.chart-svg { width: 100%; height: auto; display: block; overflow: visible; }
.chart-svg text { font-family: var(--mono); font-size: 10px; fill: var(--text-muted); }
.chart-svg .gridline { stroke: var(--border); stroke-width: 1; }
.chart-svg .bar { fill: var(--accent); transition: opacity .2s ease, fill .2s ease; cursor: pointer; }
.chart-svg .bar.dim { opacity: .25; }
.chart-svg .bar-bg { fill: var(--surface-2); }
.chart-svg .line-actual { fill: none; stroke: var(--accent); stroke-width: 2.2; stroke-linejoin: round; stroke-linecap: round; }
.chart-svg .line-forecast { fill: none; stroke: var(--accent-2); stroke-width: 2; stroke-dasharray: 5 5; }
.chart-svg .band-forecast { fill: var(--accent-2); opacity: .1; }
.chart-svg .area-actual { fill: url(#areaGrad); }
.chart-svg .hover-line { stroke: var(--text-muted); stroke-dasharray: 3 3; }
.chart-svg .pt { fill: var(--surface); stroke: var(--accent); stroke-width: 2; }
.chart-svg .val { fill: var(--text); font-size: 10.5px; }
.legend { display: flex; gap: 16px; flex-wrap: wrap; font-family: var(--mono); font-size: 11px; color: var(--text-muted); margin-top: 8px; }
.legend i { display: inline-block; width: 14px; height: 3px; border-radius: 2px; vertical-align: middle; margin-right: 6px; background: var(--accent); }
.legend i.fc { background: repeating-linear-gradient(90deg, var(--accent-2) 0 4px, transparent 4px 7px); }
.chart-tip {
  position: fixed;
  z-index: 500;
  pointer-events: none;
  background: var(--text);
  color: var(--bg);
  font-family: var(--mono);
  font-size: 11.5px;
  line-height: 1.5;
  padding: 8px 10px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transform: translate(-50%, calc(-100% - 12px));
  transition: opacity .12s ease;
  white-space: nowrap;
}
.chart-tip.show { opacity: 1; }
.dash-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.dash-table th {
  text-align: left; font-family: var(--mono); font-size: 10.5px; font-weight: 400;
  color: var(--text-muted); padding: 8px 10px; border-bottom: 1px solid var(--border);
}
.dash-table td { padding: 9px 10px; border-bottom: 1px solid var(--border); font-variant-numeric: tabular-nums; }
.dash-table tr:last-child td { border-bottom: none; }
.dash-table .num { text-align: right; }
.dash-table .mini-bar { height: 5px; border-radius: 3px; background: var(--accent); opacity: .8; }
/* variance bars grow out from a centre line: right = gain, left = loss */
.waterfall { position: relative; height: 8px; background: var(--surface-2); border-radius: 3px; }
.waterfall::before { content: ''; position: absolute; left: 50%; top: -2px; bottom: -2px; width: 1px; background: var(--border-strong); }
.waterfall i { position: absolute; top: 0; height: 100%; border-radius: 2px; }
.waterfall i.pos { left: 50%; background: var(--accent); }
.waterfall i.neg { right: 50%; background: var(--danger); }
/* anomaly markers on the trend line */
.chart-svg .anom { fill: none; stroke: var(--warn); stroke-width: 2; opacity: .9; }
.chart-svg .anom-dot { fill: var(--warn); }
.chart-svg .anom-label { fill: var(--warn); font-size: 9.5px; font-family: var(--mono); }
.legend i.an { background: var(--warn); border-radius: 50%; width: 9px; height: 9px; }
@media (max-width: 900px) {
  .dash-grid { grid-template-columns: 1fr 1fr; }
  .panel-wide, .panel-side { grid-column: 1 / -1; }
}
@media (max-width: 480px) {
  .kpi .k-val { font-size: 21px; }
  .kpi { padding: 14px; }
}

/* ---------- ETL explorer (Data Engineering) ---------- */
.etl {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.etl-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid var(--border);
}
.etl-step {
  position: relative;
  text-align: left;
  border: none;
  border-left: 1px solid var(--border);
  background: var(--surface-2);
  padding: 16px 18px;
  color: var(--text-muted);
  transition: background .2s ease, color .2s ease;
}
.etl-step:first-child { border-left: none; }
.etl-step .n { font-family: var(--mono); font-size: 11px; display: block; margin-bottom: 4px; }
.etl-step strong { font-family: var(--display); font-size: 15px; color: var(--text); display: block; }
.etl-step small { font-size: 12px; display: block; margin-top: 2px; }
.etl-step::after {
  content: '';
  position: absolute; left: 0; right: 0; bottom: -1px;
  height: 2px;
  background: var(--layer, var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s var(--ease);
}
.etl-step.active { background: var(--surface); }
.etl-step.active::after { transform: scaleX(1); }
.etl-step.done .n { color: var(--accent); }
.etl-step[data-step="0"] { --layer: var(--bronze); }
.etl-step[data-step="1"] { --layer: var(--silver); }
.etl-step[data-step="2"] { --layer: var(--gold); }
.etl-step[data-step="3"] { --layer: var(--accent); }
@media (max-width: 720px) {
  .etl-steps { grid-template-columns: 1fr 1fr; }
  .etl-step:nth-child(3) { border-left: none; }
  .etl-step:nth-child(n+3) { border-top: 1px solid var(--border); }
  .etl-step small { display: none; }
}
.etl-body {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  min-height: 420px;
}
@media (max-width: 960px) { .etl-body { grid-template-columns: 1fr; } }
.etl-main { padding: 20px; min-width: 0; border-right: 1px solid var(--border); }
@media (max-width: 960px) { .etl-main { border-right: none; border-bottom: 1px solid var(--border); } }
.etl-side { padding: 20px; background: var(--surface-2); min-width: 0; display: flex; flex-direction: column; gap: 16px; }
.etl-caption { font-size: 14px; color: var(--text-muted); margin: 0 0 14px; line-height: 1.6; }
.etl-caption strong { color: var(--text); }
.table-scroll { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
.data-table { width: 100%; border-collapse: collapse; font-family: var(--mono); font-size: 11.5px; white-space: nowrap; }
.data-table th {
  text-align: left; font-weight: 500; color: var(--text-muted);
  background: var(--surface-2); padding: 8px 10px; border-bottom: 1px solid var(--border);
}
.data-table td { padding: 7px 10px; border-bottom: 1px solid var(--border); color: var(--text); }
.data-table tr:last-child td { border-bottom: none; }
.data-table tr { animation: row-in .35s var(--ease) both; }
.data-table tr:nth-child(2) { animation-delay: .03s; } .data-table tr:nth-child(3) { animation-delay: .06s; }
.data-table tr:nth-child(4) { animation-delay: .09s; } .data-table tr:nth-child(5) { animation-delay: .12s; }
.data-table tr:nth-child(6) { animation-delay: .15s; } .data-table tr:nth-child(7) { animation-delay: .18s; }
.data-table tr:nth-child(8) { animation-delay: .21s; } .data-table tr:nth-child(9) { animation-delay: .24s; }
@keyframes row-in { from { opacity: 0; transform: translateX(-6px); } }
.cell-bad { background: var(--danger-soft); color: var(--danger) !important; }
.cell-fixed { background: var(--accent-soft); color: var(--accent) !important; }
.row-dupe td { text-decoration: line-through; opacity: .55; }
.cell-null { color: var(--text-muted) !important; font-style: italic; }
.etl-legend { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 12px; font-family: var(--mono); font-size: 11px; color: var(--text-muted); }
.etl-legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 6px; vertical-align: -1px; }
.etl-log {
  font-family: var(--mono); font-size: 11.5px; line-height: 1.8;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 12px 14px; min-height: 120px;
}
.etl-log div { animation: row-in .3s var(--ease) both; }
.etl-log .ok { color: var(--accent); }
.etl-log .warn { color: var(--warn); }
.etl-log .muted { color: var(--text-muted); }
.code {
  font-family: var(--mono); font-size: 11.5px; line-height: 1.7;
  background: #0B1017; color: #C9D3DF;
  border-radius: var(--radius); padding: 14px 16px;
  overflow-x: auto; white-space: pre; margin: 0;
}
.code .kw { color: #7C8CFF; }
.code .fn { color: #35D0BA; }
.code .str { color: #F0B35A; }
.code .cm { color: #5E6B7B; font-style: italic; }
.side-label { font-family: var(--mono); font-size: 11px; color: var(--text-muted); margin-bottom: 8px; display: block; }
.etl-controls { display: flex; gap: 10px; align-items: center; padding: 14px 20px; border-top: 1px solid var(--border); flex-wrap: wrap; }
.etl-controls .sp { flex: 1; }
.run-bar { height: 3px; background: var(--border); border-radius: 2px; overflow: hidden; width: 140px; }
.run-bar i { display: block; height: 100%; width: 0; background: var(--accent); transition: width .3s linear; }
.star-wrap { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface-2); padding: 12px; }
.star-wrap svg { width: 100%; height: auto; display: block; }
.star-wrap .tbl { opacity: 0; animation: tbl-in .5s var(--ease) forwards; }
.star-wrap .tbl:nth-of-type(2) { animation-delay: .25s; } .star-wrap .tbl:nth-of-type(3) { animation-delay: .35s; }
.star-wrap .tbl:nth-of-type(4) { animation-delay: .45s; } .star-wrap .tbl:nth-of-type(5) { animation-delay: .55s; }
@keyframes tbl-in { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* ---------- Agent workflow (Generative AI) ---------- */
.agent {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.agent-toolbar {
  display: flex; flex-wrap: wrap; gap: 12px; align-items: center;
  padding: 14px 18px; border-bottom: 1px solid var(--border); background: var(--surface-2);
}
.agent-toolbar .sp { flex: 1; }
.agent-body { display: grid; grid-template-columns: 1.5fr 1fr; }
@media (max-width: 960px) { .agent-body { grid-template-columns: 1fr; } }
.agent-canvas {
  position: relative;
  padding: 18px;
  border-right: 1px solid var(--border);
  background-image: radial-gradient(var(--border) 1px, transparent 1px);
  background-size: 18px 18px;
  min-width: 0;
}
@media (max-width: 960px) { .agent-canvas { border-right: none; border-bottom: 1px solid var(--border); } }
.agent-canvas svg { width: 100%; height: auto; display: block; }
.agent-canvas .edge { fill: none; stroke: var(--border-strong); stroke-width: 1.6; transition: stroke .3s ease, opacity .3s ease; }
.agent-canvas .edge.active { stroke: var(--accent); stroke-dasharray: 5 5; animation: mv-dash .6s linear infinite; }
.agent-canvas .edge.done { stroke: var(--accent); }
.agent-canvas .edge.skipped { opacity: .3; }
.agent-canvas .node rect { fill: var(--surface); stroke: var(--border-strong); stroke-width: 1.2; transition: stroke .3s ease, fill .3s ease; }
.agent-canvas .node .ico { fill: var(--surface-2); stroke: none; transition: fill .3s ease; }
.agent-canvas .node text { font-family: var(--mono); font-size: 10px; fill: var(--text-muted); }
.agent-canvas .node text.nm { font-family: var(--body); font-size: 11.5px; font-weight: 600; fill: var(--text); }
.agent-canvas .node text.glyph { font-size: 12px; fill: var(--text-muted); }
.agent-canvas .node.running rect.card { stroke: var(--accent); stroke-width: 2; }
.agent-canvas .node.running .ico { fill: var(--accent-soft); }
.agent-canvas .node.done rect.card { stroke: var(--accent); }
.agent-canvas .node.done .ico { fill: var(--accent); }
.agent-canvas .node.done text.glyph { fill: var(--on-accent); }
.agent-canvas .node.skipped { opacity: .35; }
.agent-canvas .node .status { fill: var(--border-strong); transition: fill .3s ease; }
.agent-canvas .node.running .status { fill: var(--warn); }
.agent-canvas .node.done .status { fill: var(--accent); }
.agent-side { display: flex; flex-direction: column; min-width: 0; }
.agent-input { padding: 16px 18px; border-bottom: 1px solid var(--border); }
.agent-input .side-label { margin-bottom: 6px; }
.agent-input blockquote {
  margin: 0; font-size: 13.5px; line-height: 1.6; color: var(--text);
  border-left: 2px solid var(--accent); padding: 4px 0 4px 12px;
}
.agent-log {
  flex: 1;
  padding: 14px 18px;
  font-family: var(--mono); font-size: 11.5px; line-height: 1.8;
  min-height: 170px; max-height: 230px; overflow-y: auto;
  border-bottom: 1px solid var(--border);
}
.agent-log div { animation: row-in .3s var(--ease) both; }
.agent-log .t { color: var(--text-muted); margin-right: 8px; }
.agent-log .ok { color: var(--accent); }
.agent-log .run { color: var(--warn); }
.agent-out { padding: 16px 18px; background: var(--surface-2); }
.agent-out .draft {
  font-size: 13.5px; line-height: 1.65; color: var(--text); min-height: 90px; white-space: pre-wrap;
}
.agent-meta { display: flex; gap: 16px; flex-wrap: wrap; font-family: var(--mono); font-size: 11px; color: var(--text-muted); margin-top: 10px; }
.agent-meta b { color: var(--text); font-weight: 500; }

/* ---------- Skills graph ---------- */
.skills-graph {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.skills-graph .sg-canvas {
  position: relative;
  background-image: radial-gradient(var(--border) 1px, transparent 1px);
  background-size: 22px 22px;
}
.skills-graph svg { width: 100%; height: auto; display: block; }
.sg-edge { stroke: var(--border-strong); stroke-width: 1; transition: stroke .2s ease, opacity .2s ease, stroke-width .2s ease; }
.sg-node circle { fill: var(--surface); stroke: var(--border-strong); stroke-width: 1.2; transition: all .2s ease; }
.sg-node text { font-family: var(--mono); font-size: 11px; fill: var(--text-muted); transition: fill .2s ease, opacity .2s ease; pointer-events: none; }
.sg-node { cursor: pointer; transition: opacity .2s ease; }
.sg-node.hub circle { fill: var(--text); stroke: none; }
.sg-node.hub text { font-family: var(--display); font-weight: 700; font-size: 13px; fill: var(--text); }
.sg-node.shared circle { stroke: var(--accent-2); stroke-width: 1.8; }
.sg-node.key circle { fill: var(--accent-soft); stroke: var(--accent); stroke-width: 2; }
.sg-node.key text { fill: var(--text); font-weight: 500; font-size: 11.5px; }
.sg-dim .sg-edge { opacity: .15; }
.sg-dim .sg-node { opacity: .28; }
.sg-dim .sg-edge.hl { opacity: 1; stroke: var(--accent); stroke-width: 1.8; }
.sg-dim .sg-node.hl { opacity: 1; }
.sg-dim .sg-node.hl circle { stroke: var(--accent); fill: var(--accent-soft); }
.sg-dim .sg-node.hub.hl circle { fill: var(--accent); }
.sg-dim .sg-node.hl text { fill: var(--text); }
.sg-info {
  display: flex; gap: 16px; align-items: center; flex-wrap: wrap;
  padding: 14px 18px; border-top: 1px solid var(--border);
  font-size: 13.5px; color: var(--text-muted); min-height: 52px;
}
.sg-info strong { color: var(--text); font-family: var(--display); }
.sg-key { display: inline-flex; align-items: center; gap: 6px; font-family: var(--mono); font-size: 11px; }
.sg-key i { width: 10px; height: 10px; border-radius: 50%; border: 1.5px solid var(--border-strong); display: inline-block; }
.sg-key i.shared { border-color: var(--accent-2); }
.sg-key i.hub { background: var(--text); border-color: var(--text); }

.skill-cols {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  /* Cards size to their own content: the ML column is shorter than the rest,
     and stretching it would leave a card that is mostly empty space. */
  align-items: start;
}
@media (max-width: 1040px) { .skill-cols { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .skill-cols { grid-template-columns: 1fr; } }
.skill-col {
  background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 26px;
}
.skill-col .tag { font-family: var(--mono); font-size: 11.5px; color: var(--accent); display: block; margin-bottom: 10px; }
.skill-col h3 { font-family: var(--display); font-size: 19px; margin-bottom: 8px; }
.skill-col > p { font-size: 14px; color: var(--text-muted); line-height: 1.6; margin: 0 0 18px; }
/* Default row: name left, mono tag right on one line. Used on About too. */
.skill-list li {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 10px 0; border-top: 1px solid var(--border); font-size: 14px;
}
.skill-list li span { font-family: var(--mono); font-size: 10.5px; color: var(--text-muted); text-align: right; }
/* Links inside a skill list (the 404 page uses them as signposts) must read as
   links — in body-text colour they are indistinguishable from the labels. */
.skill-list a { color: var(--accent); text-decoration: none; }
.skill-list a:hover, .skill-list a:focus-visible { text-decoration: underline; }

/* Skills-page 4-column grid ONLY: at ~263px a card is too narrow for name + tag
   on one line, so stack them, both hard left. Scoped to `.skill-cols` so the
   About page's cards keep the single-line row, and placed AFTER the base rules
   so it is not silently overridden by them. */
@media (min-width: 1041px) {
  .skill-col { padding: 22px 20px; }
  .skill-cols .skill-list li {
    flex-direction: column; align-items: flex-start; justify-content: flex-start; gap: 3px;
  }
  .skill-cols .skill-list li span { text-align: left; margin-left: 0; }
}

/* chart entry animations (charts re-render on every filter change) */
.chart-svg .bar-v { transform-box: fill-box; transform-origin: bottom; animation: grow-y .55s var(--ease) both; }
.chart-svg .bar-h { transform-box: fill-box; transform-origin: left; animation: grow-x .55s var(--ease) both; }
.chart-svg .draw-in { stroke-dasharray: 2000; stroke-dashoffset: 2000; animation: draw 1.2s var(--ease) forwards; }
@keyframes grow-y { from { transform: scaleY(0); } }
@keyframes grow-x { from { transform: scaleX(0); } }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes sg-in { from { opacity: 0; } }
.etl-caption code { font-family: var(--mono); font-size: 12.5px; background: var(--surface-2); padding: 1px 5px; border-radius: 2px; }
.mini-bar { height: 5px; border-radius: 3px; background: var(--accent); }

/* ---------- Screenshot gallery + lightbox ---------- */
.shots {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 16px;
}
.shots.one { grid-template-columns: 1fr; }
.shot {
  margin: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  cursor: zoom-in;
  transition: transform .25s var(--ease), border-color .2s ease, box-shadow .25s ease;
}
.shot:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--accent) 55%, var(--border)); box-shadow: var(--shadow-lg); }
.shot img { width: 100%; height: auto; display: block; background: var(--surface-2); }
.shot figcaption {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--text-muted);
  padding: 10px 14px;
  border-top: 1px solid var(--border);
}
@media (prefers-reduced-motion: reduce) { .shot:hover { transform: none; } }

.lightbox {
  position: fixed; inset: 0;
  z-index: 500;
  background: rgba(5, 8, 12, .88);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  gap: 8px; padding: 24px;
  opacity: 0; visibility: hidden;
  transition: opacity .2s ease, visibility .2s ease;
}
.lightbox.open { opacity: 1; visibility: visible; }
.lightbox figure { margin: 0; max-width: 1200px; width: 100%; }
.lightbox img {
  width: 100%; height: auto;
  max-height: 82vh; object-fit: contain;
  border-radius: 6px;
}
.lightbox figcaption {
  font-family: var(--mono); font-size: 12px; color: #C9D3DF;
  text-align: center; padding-top: 14px;
}
.lb-close, .lb-nav {
  width: 42px; height: 42px; flex-shrink: 0;
  border-radius: 100px;
  border: 1px solid rgba(255,255,255,.22);
  background: rgba(255,255,255,.08);
  color: #fff;
  display: grid; place-items: center;
  transition: background .15s ease;
}
.lb-close:hover, .lb-nav:hover { background: rgba(255,255,255,.2); }
.lb-close { position: absolute; top: 20px; right: 20px; }
@media (max-width: 720px) {
  .lightbox { padding: 12px; gap: 4px; }
  .lb-nav { position: absolute; bottom: 20px; }
  .lb-prev { left: 24px; } .lb-next { right: 24px; }
}

/* ---------- Certification groups ---------- */
.cert-group { margin-bottom: 44px; }
.cert-group-head {
  display: flex; align-items: baseline; gap: 14px;
  margin-bottom: 20px; padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.cert-group-head h2 { font-family: var(--display); font-size: 19px; }
.cert-group-head span { font-family: var(--mono); font-size: 11.5px; color: var(--text-muted); }
.cert-card .thumb-sm { background: var(--surface-2); padding: 16px; }
.cert-card .thumb-sm img { width: auto; height: auto; max-width: 100%; max-height: 100%; object-fit: contain; }
.cert-card.no-img .thumb-sm {
  font-family: var(--display); font-weight: 700; font-size: 30px;
  color: var(--accent); background: var(--accent-soft);
}
.modal-box .modal-thumb { background: var(--surface-2); padding: 10px; }
.modal-box .modal-thumb img { max-width: 100%; max-height: 100%; width: auto; object-fit: contain; }

/* ---------- GenAI build list ---------- */
.build {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 32px;
  align-items: center;
  padding: 44px 0;
  border-top: 1px solid var(--border);
  scroll-margin-top: 90px;
}
.build:first-of-type { border-top: none; }
.build:nth-child(even) .build-media { order: 2; }
@media (max-width: 860px) {
  .build { grid-template-columns: 1fr; gap: 22px; padding: 32px 0; }
  .build:nth-child(even) .build-media { order: 0; }
}
.build-media { margin: 0; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; background: var(--surface-2); cursor: zoom-in; transition: border-color .2s ease; }
.build-media:hover { border-color: color-mix(in srgb, var(--accent) 55%, var(--border)); }
.build-media img { width: 100%; height: auto; display: block; }
.build .n { font-family: var(--mono); font-size: 12px; color: var(--accent); display: block; margin-bottom: 10px; }
.build h3 { font-family: var(--display); font-size: 22px; line-height: 1.25; margin-bottom: 16px; letter-spacing: -0.01em; }
.build dt { font-family: var(--mono); font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 4px; }
.build dd { margin: 0 0 16px; font-size: 15px; line-height: 1.7; color: var(--text-muted); }
.build dd strong { color: var(--text); font-weight: 600; }

/* ==========================================================================
   22 Command palette, WhatsApp, footer, reveal
   ========================================================================== */

/* ---------- Command palette ---------- */
.palette-overlay {
  position: fixed; inset: 0;
  z-index: 600;
  background: rgba(5, 8, 12, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex; justify-content: center; align-items: flex-start;
  padding: 12vh 16px 16px;
  opacity: 0; visibility: hidden;
  transition: opacity .15s ease, visibility .15s ease;
}
.palette-overlay.open { opacity: 1; visibility: visible; }
.palette {
  width: 100%; max-width: 580px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transform: translateY(-8px) scale(.98);
  transition: transform .2s var(--ease);
}
.palette-overlay.open .palette { transform: none; }
.palette-search {
  display: flex; align-items: center; gap: 12px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--border);
}
.palette-search svg { width: 18px; height: 18px; color: var(--text-muted); flex-shrink: 0; }
.palette-search input {
  flex: 1; min-width: 0;
  border: none; outline: none; background: transparent;
  color: var(--text); font-size: 16px; font-family: var(--body);
}
.palette-list { max-height: 50vh; overflow-y: auto; padding: 8px; }
.palette-group {
  font-family: var(--mono); font-size: 10.5px; color: var(--text-muted);
  padding: 10px 10px 6px; text-transform: uppercase; letter-spacing: .06em;
}
.palette-item {
  display: flex; align-items: center; gap: 12px;
  width: 100%;
  padding: 10px 12px;
  border-radius: 6px;
  border: none; background: transparent;
  color: var(--text); font-size: 14px; text-align: left;
  cursor: pointer;
}
.palette-item .pi-ico {
  width: 28px; height: 28px; border-radius: 6px;
  background: var(--surface-2); color: var(--text-muted);
  display: grid; place-items: center; flex-shrink: 0;
}
.palette-item .pi-ico svg { width: 15px; height: 15px; }
.palette-item .pi-hint { margin-left: auto; font-family: var(--mono); font-size: 11px; color: var(--text-muted); }
.palette-item.sel { background: var(--accent-soft); }
.palette-item.sel .pi-ico { background: var(--accent); color: var(--on-accent); }
.palette-empty { padding: 28px; text-align: center; color: var(--text-muted); font-size: 14px; }
.palette-foot {
  display: flex; gap: 16px; padding: 10px 18px;
  border-top: 1px solid var(--border);
  font-size: 11.5px; color: var(--text-muted);
}
.palette-foot span { display: inline-flex; align-items: center; gap: 6px; }
@media (max-width: 520px) { .palette-foot { display: none; } }

/* ---------- Floating action buttons (assistant + WhatsApp) ---------- */
.fab-stack {
  position: fixed;
  right: 22px; bottom: 22px;
  z-index: 250;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.fab {
  position: relative;
  width: 56px; height: 56px;
  border-radius: 50%;
  border: none;
  color: #fff;
  display: grid; place-items: center;
  text-decoration: none;
  cursor: pointer;
  transition: transform .2s var(--ease), box-shadow .2s ease;
}
.fab svg { width: 27px; height: 27px; }
.fab:hover { transform: translateY(-3px) scale(1.05); }
.fab-assistant {
  background: linear-gradient(140deg, var(--accent), var(--accent-2));
  box-shadow: 0 10px 28px color-mix(in srgb, var(--accent) 45%, transparent);
}
.fab-assistant:hover { box-shadow: 0 14px 36px color-mix(in srgb, var(--accent) 55%, transparent); }
.fab-wa { background: #25D366; box-shadow: 0 10px 28px rgba(37, 211, 102, .38); }
.fab-wa:hover { box-shadow: 0 14px 36px rgba(37, 211, 102, .5); }
/* soft pulse so the pair reads as interactive, not decorative */
.fab-assistant::after {
  content: '';
  position: absolute; inset: 0;
  border-radius: 50%;
  border: 2px solid var(--accent);
  animation: fab-ping 2.8s ease-out infinite;
  pointer-events: none;
}
@keyframes fab-ping {
  0% { transform: scale(1); opacity: .7; }
  70%, 100% { transform: scale(1.5); opacity: 0; }
}
.fab-tip {
  position: absolute;
  right: calc(100% + 12px);
  top: 50%;
  transform: translateY(-50%) translateX(6px);
  background: var(--text); color: var(--bg);
  font-size: 12.5px; font-weight: 500;
  padding: 7px 11px; border-radius: var(--radius);
  white-space: nowrap;
  opacity: 0; pointer-events: none;
  transition: opacity .2s ease, transform .2s ease;
}
.fab:hover .fab-tip { opacity: 1; transform: translateY(-50%); }
@media (max-width: 520px) {
  .fab-stack { right: 16px; bottom: 16px; gap: 10px; }
  .fab { width: 50px; height: 50px; }
  .fab svg { width: 24px; height: 24px; }
}

/* ---------- Assistant dock (the terminal, on any page) ---------- */
.assistant-dock {
  position: fixed;
  right: 22px;
  bottom: 160px;          /* clears the whole 2-button stack below it */
  z-index: 260;
  width: 400px;
  max-width: calc(100vw - 32px);
  opacity: 0; visibility: hidden;
  transform: translateY(14px) scale(.98);
  transform-origin: bottom right;
  transition: opacity .22s ease, transform .28s var(--ease), visibility .22s ease;
}
.assistant-dock.open { opacity: 1; visibility: visible; transform: none; }
.assistant-dock .terminal { box-shadow: 0 24px 64px rgba(0, 0, 0, .45); }
.assistant-dock .term-body { height: 300px; }
.dock-close {
  border: none;
  background: transparent;
  color: #7F8B9B;
  width: 26px; height: 26px;
  border-radius: 6px;
  display: grid; place-items: center;
  flex-shrink: 0;
}
.dock-close:hover { color: #fff; background: rgba(255,255,255,.08); }
@media (max-width: 520px) {
  .assistant-dock { right: 16px; left: 16px; bottom: 138px; width: auto; }
  .assistant-dock .term-body { height: 42vh; }
}
@media (max-height: 560px) { .assistant-dock .term-body { height: 200px; } }

/* ---------- Footer ---------- */
footer.site-footer {
  border-top: 1px solid var(--border);
  padding: 64px 0 32px;
  margin-top: 40px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 44px;
}
@media (max-width: 860px) { .footer-top { grid-template-columns: 1fr 1fr; } .footer-brand { grid-column: 1 / -1; } }
.footer-brand p { font-size: 14px; color: var(--text-muted); line-height: 1.65; margin: 14px 0 18px; max-width: 36ch; }
.footer-col h2 { font-family: var(--mono); font-size: 11px; font-weight: 500; color: var(--text-muted); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 14px; }
.footer-col a { display: block; font-size: 14px; color: var(--text); text-decoration: none; padding: 5px 0; opacity: .85; transition: color .15s ease, opacity .15s ease; }
.footer-col a:hover { color: var(--accent); opacity: 1; }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 14px;
  padding-top: 24px; border-top: 1px solid var(--border);
  font-size: 13px; color: var(--text-muted);
}
.footer-bottom p { margin: 0; }
.footer-hint { font-family: var(--mono); font-size: 11.5px; }

/* ---------- Scroll reveal ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
}

/* Word-by-word headline reveal (JS splits the heading into spans) */
.split-word { display: inline-block; opacity: 0; transform: translateY(0.4em); animation: word-in .7s var(--ease) forwards; }
@keyframes word-in { to { opacity: 1; transform: none; } }