/* =========================================================================
   Shengbo Jiang — Portfolio
   Design tokens, typography, layout primitives
   ========================================================================= */

:root {
  /* Light palette */
  --bg: #f5f5f7;
  --bg-elev: #ffffff;
  --ink: #0b1020;
  --ink-2: #111827;
  --muted: #5b6472;
  --muted-2: #8892a1;
  --line: rgba(17, 24, 39, 0.09);
  --line-strong: rgba(17, 24, 39, 0.16);

  /* Dark palette */
  --dark: #05070d;
  --dark-2: #0a0f1e;
  --dark-3: #0f1630;
  --dark-card: rgba(255, 255, 255, 0.06);
  --dark-card-strong: rgba(255, 255, 255, 0.10);
  --dark-line: rgba(255, 255, 255, 0.10);

  /* Accents */
  --blue: #0071e3;
  --blue-2: #3d8bff;
  --cyan: #38bdf8;
  --green: #22c55e;
  --green-2: #16a34a;
  --teal: #14b8a6;
  --violet: #8b5cf6;
  --violet-2: #a78bfa;
  --amber: #f59e0b;
  --pink: #ec4899;

  /* Typography scale */
  --f-hero: clamp(2.75rem, 7.2vw, 6.5rem);
  --f-title: clamp(2rem, 4.6vw, 4rem);
  --f-h3: clamp(1.375rem, 2.2vw, 2rem);
  --f-lede: clamp(1.125rem, 1.5vw, 1.375rem);
  --f-body: 1.0625rem;
  --f-small: 0.9375rem;
  --f-tiny: 0.8125rem;

  /* Rhythm */
  --rail: 96px;
  --rail-sm: 56px;
  --max: 1240px;
  --radius: 28px;
  --radius-lg: 36px;
  --radius-sm: 16px;

  --shadow-soft: 0 12px 36px rgba(15, 23, 42, 0.06);
  --shadow-card: 0 28px 70px rgba(15, 23, 42, 0.10);
  --shadow-lift: 0 44px 110px rgba(15, 23, 42, 0.16);

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* =========================================================================
   Base
   ========================================================================= */

*,
*::before,
*::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "SF Pro Display",
    "SF Pro Text", "Segoe UI", sans-serif;
  font-size: var(--f-body);
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "cv11";
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }

:focus-visible {
  outline: 3px solid rgba(0, 113, 227, 0.55);
  outline-offset: 4px;
  border-radius: 8px;
}

.skip-link {
  position: absolute;
  top: -48px;
  left: 16px;
  padding: 10px 16px;
  background: var(--ink);
  color: #fff;
  border-radius: 10px;
  z-index: 1100;
  transition: top 0.25s var(--ease);
}
.skip-link:focus { top: 12px; }

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 32px;
}

@media (max-width: 720px) {
  .container { padding: 0 20px; }
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: var(--f-tiny);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
  margin: 0 0 18px;
}
.eyebrow--on-dark { color: rgba(255,255,255,0.68); }
.eyebrow--green { color: var(--green-2); }
.eyebrow--cyan { color: var(--cyan); }
.eyebrow--blue { color: var(--blue); }
.eyebrow--violet { color: var(--violet); }
.eyebrow--teal { color: var(--teal); }

.section-head { margin-bottom: 56px; max-width: 860px; }
.section-head--center { margin-left: auto; margin-right: auto; text-align: center; }

.section-title {
  font-size: var(--f-title);
  line-height: 1.05;
  letter-spacing: -0.035em;
  margin: 0 0 18px;
  font-weight: 700;
  color: var(--ink);
}


/* =========================================================================
   Buttons
   ========================================================================= */

.btn {
  --pad-y: 14px;
  --pad-x: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: var(--pad-y) var(--pad-x);
  border-radius: 980px;
  font-weight: 600;
  font-size: var(--f-body);
  letter-spacing: -0.01em;
  transition: transform 0.3s var(--ease-out), background 0.3s var(--ease-out),
    box-shadow 0.3s var(--ease-out), color 0.3s var(--ease-out);
  cursor: pointer;
  white-space: nowrap;
  border: 1px solid transparent;
  will-change: transform;
}

.btn--primary {
  background: var(--ink);
  color: #fff;
  box-shadow: 0 14px 30px rgba(5, 7, 13, 0.25);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 22px 46px rgba(5, 7, 13, 0.32);
}
.btn--secondary {
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(10px);
}
.btn--secondary:hover { background: rgba(255, 255, 255, 0.14); transform: translateY(-2px); }

.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn--ghost:hover { background: rgba(17,24,39,0.06); transform: translateY(-2px); }

.btn--sm { --pad-y: 11px; --pad-x: 18px; font-size: var(--f-small); }

.btn .arrow { display: inline-block; transition: transform 0.35s var(--ease-out); }
.btn:hover .arrow { transform: translateX(4px); }

/* =========================================================================
   Navigation
   ========================================================================= */

.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1000;
  padding: 14px 0;
  transition: background 0.35s var(--ease), border-color 0.35s var(--ease), padding 0.3s var(--ease);
  color: #fff;
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(0);
}
.nav__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 32px;
}
.nav.is-scrolled {
  background: rgba(5, 7, 13, 0.72);
  border-bottom-color: rgba(255,255,255,0.08);
  backdrop-filter: saturate(180%) blur(20px);
  padding: 10px 0;
}
.nav.is-light {
  background: rgba(255, 255, 255, 0.72);
  border-bottom-color: var(--line);
  color: var(--ink);
  backdrop-filter: saturate(180%) blur(20px);
}

.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.02em;
}
.nav__mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--violet), var(--cyan));
  color: #fff;
  box-shadow: 0 10px 22px rgba(139, 92, 246, 0.35);
}
.nav.is-light .nav__mark { color: #fff; }

.nav__links {
  display: flex;
  justify-content: center;
  gap: 28px;
  font-size: var(--f-small);
  font-weight: 500;
}
.nav__links a {
  opacity: 0.82;
  transition: opacity 0.25s var(--ease);
  position: relative;
}
.nav__links a:hover { opacity: 1; }
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease-out);
}
.nav__links a:hover::after { transform: scaleX(1); }

.nav__actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav__icon {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  opacity: 0.82;
  transition: opacity 0.25s var(--ease), background 0.25s var(--ease);
}
.nav__icon:hover { opacity: 1; background: rgba(255,255,255,0.10); }
.nav.is-light .nav__icon:hover { background: rgba(17,24,39,0.08); }

.nav__cta {
  padding: 9px 16px;
  font-size: var(--f-small);
  border-color: rgba(255,255,255,0.24);
  color: currentColor;
}
.nav.is-light .nav__cta { border-color: var(--line-strong); }

.section-lede {
  font-size: var(--f-lede);
  color: var(--muted);
  max-width: 680px;
  margin: 0;
  line-height: 1.55;
}


/* Mobile nav */
.nav__burger {
  display: none;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 0;
  cursor: pointer;
  padding: 10px;
  flex-direction: column;
  gap: 5px;
  justify-content: center;
  align-items: center;
}
.nav__burger span {
  width: 20px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}
.nav__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(5, 7, 13, 0.96);
  backdrop-filter: blur(22px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s var(--ease);
  display: grid;
  place-items: center;
  color: #fff;
}
.mobile-menu.is-open { opacity: 1; pointer-events: auto; }
.mobile-menu nav { display: flex; flex-direction: column; gap: 22px; text-align: center; }
.mobile-menu nav a {
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.mobile-menu__meta {
  display: flex;
  gap: 24px;
  justify-content: center;
  margin-top: 24px;
  font-size: var(--f-small);
  color: rgba(255,255,255,0.7);
}

@media (max-width: 960px) {
  .nav__links { display: none; }
  .nav__cta { display: none; }
  .nav__burger { display: flex; }
}

/* =========================================================================
   HERO
   ========================================================================= */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  color: #fff;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(56, 189, 248, 0.18), transparent 60%),
    radial-gradient(900px 500px at 0% 100%, rgba(139, 92, 246, 0.22), transparent 60%),
    linear-gradient(180deg, #05070d 0%, #080c1c 55%, #05070d 100%);
  overflow: hidden;
  padding: 140px 0 100px;
}
.hero__canvas { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.hero__vignette {
  position: absolute; inset: 0;
  background: radial-gradient(60% 60% at 50% 50%, transparent 30%, rgba(5,7,13,0.7) 100%);
  pointer-events: none;
}
.hero__inner {
  position: relative;
  z-index: 2;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 32px;
  width: 100%;
}
.hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 8px 14px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 999px;
  font-size: var(--f-tiny);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.82);
  backdrop-filter: blur(14px);
  margin-bottom: 28px;
}
.hero__kicker .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 10px var(--green);
  animation: pulse 2.2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.4); }
}

.hero__title {
  font-size: var(--f-hero);
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 1.02;
  margin: 0 0 28px;
  max-width: 17ch;
}
.hero__grad {
  background: linear-gradient(120deg, #7dd3fc 0%, #8b5cf6 50%, #f0abfc 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  display: inline;
}
.hero__grad--2 {
  background: linear-gradient(120deg, #34d399 0%, #22d3ee 50%, #60a5fa 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero__sub {
  font-size: clamp(1.0625rem, 1.4vw, 1.25rem);
  line-height: 1.6;
  color: rgba(255,255,255,0.78);
  max-width: 64ch;
  margin: 0 0 40px;
}
.hero__sub strong { color: #fff; font-weight: 600; }
.hero__sub em { font-style: normal; color: #e9d5ff; font-weight: 500; }

.hero__cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 64px; }

.hero__chips {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  max-width: 920px;
}
.hero__chips li {
  padding: 10px 16px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 999px;
  color: rgba(255,255,255,0.78);
  font-size: var(--f-small);
  letter-spacing: -0.01em;
  backdrop-filter: blur(12px);
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease), transform 0.3s var(--ease);
}
.hero__chips li:hover {
  background: rgba(255,255,255,0.10);
  border-color: rgba(255,255,255,0.22);
  transform: translateY(-2px);
}
.hero__chips strong { color: #fff; font-weight: 600; margin-right: 4px; }

.hero__scroll {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  width: 26px;
  height: 42px;
  border: 1.5px solid rgba(255,255,255,0.35);
  border-radius: 14px;
  display: grid;
  place-items: start center;
  padding-top: 8px;
  z-index: 2;
  opacity: 0.8;
  transition: opacity 0.3s var(--ease);
}
.hero__scroll:hover { opacity: 1; }
.hero__scroll span {
  width: 3px; height: 8px; border-radius: 3px;
  background: #fff;
  animation: scroll 1.8s infinite;
}
@keyframes scroll {
  0% { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(14px); opacity: 0; }
}

/* =========================================================================
   METRICS
   ========================================================================= */

.metrics {
  padding: var(--rail) 0;
  background:
    radial-gradient(600px 300px at 50% 0%, rgba(139,92,246,0.06), transparent),
    linear-gradient(180deg, #fafbfd 0%, var(--bg) 100%);
  border-top: 1px solid var(--line);
}
.metrics__grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
}
@media (max-width: 1024px) { .metrics__grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 640px)  { .metrics__grid { grid-template-columns: repeat(2, 1fr); } }

.metric {
  position: relative;
  padding: 28px 24px;
  border-radius: var(--radius);
  background: var(--bg-elev);
  border: 1px solid var(--line);
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out), border-color 0.3s var(--ease);
  min-height: 160px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.metric:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
  border-color: var(--line-strong);
}
.metric__num {
  font-size: clamp(2.25rem, 3.6vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1;
  color: var(--ink);
  background: linear-gradient(135deg, var(--violet) 0%, var(--blue) 55%, var(--cyan) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.metric__num--text {
  font-size: clamp(1.25rem, 1.6vw, 1.5rem);
  letter-spacing: -0.02em;
}
.metric__label {
  font-size: var(--f-small);
  color: var(--muted);
  line-height: 1.45;
}

/* =========================================================================
   FEATURED WORK GRID
   ========================================================================= */

.work { padding: var(--rail) 0; }
.work__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 1fr;
  gap: 24px;
}
@media (max-width: 1040px) { .work__grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 680px)  { .work__grid { grid-template-columns: 1fr; } }

.project {
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--bg-elev);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
  color: var(--ink);
  transition: transform 0.5s var(--ease-out), box-shadow 0.5s var(--ease-out), border-color 0.3s var(--ease);
  min-height: 460px;
}
.project:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lift);
  border-color: var(--line-strong);
}
.project--tall { min-height: 520px; }

.project__media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #eef2f7;
}
.project--tall .project__media { aspect-ratio: auto; flex: 1 1 auto; min-height: 0; }
.project__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease-out);
}
.project:hover .project__media img { transform: scale(1.04); }



.project__body {
  padding: 28px 28px 32px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.project__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 2px;
}
.project__tags span {
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--muted);
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(17, 24, 39, 0.02);
}
.project__body h3 {
  font-size: clamp(1.25rem, 1.7vw, 1.5rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 4px 0 0;
  font-weight: 700;
  color: var(--ink);
}
.project__body p {
  color: var(--muted);
  font-size: var(--f-small);
  line-height: 1.55;
  margin: 0;
}
.project__meta {
  margin-top: auto;
  padding-top: 12px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  color: var(--muted-2);
  font-weight: 500;
}
.project__meta .sep { opacity: 0.55; }

/* Colored accents (top strip on hover) */
.project::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--accent, transparent);
  opacity: 0;
  transition: opacity 0.35s var(--ease);
  z-index: 2;
}
.project:hover::before { opacity: 1; }

.project--green     { --accent: linear-gradient(90deg, #16a34a, #22c55e); }
.project--green-soft{ --accent: linear-gradient(90deg, #14b8a6, #22c55e); }
.project--purple    { --accent: linear-gradient(90deg, #8b5cf6, #c084fc); }
.project--cyan      { --accent: linear-gradient(90deg, #06b6d4, #38bdf8); }
.project--blue      { --accent: linear-gradient(90deg, #0071e3, #60a5fa); }
.project--amber     { --accent: linear-gradient(90deg, #f59e0b, #fbbf24); }

/* Gradient placeholder media for projects without a static image */
.project__media--gradient {
  background:
    radial-gradient(circle at 30% 30%, rgba(56,189,248,0.45), transparent 60%),
    radial-gradient(circle at 70% 70%, rgba(139,92,246,0.45), transparent 60%),
    linear-gradient(135deg, #0f1630 0%, #1a1f3a 100%);
  display: grid;
  place-items: center;
  position: relative;
}
.project--cyan .project__media--gradient {
  background:
    radial-gradient(circle at 30% 30%, rgba(34,211,238,0.55), transparent 60%),
    radial-gradient(circle at 70% 70%, rgba(14,165,233,0.45), transparent 60%),
    linear-gradient(135deg, #0a2537 0%, #082a3f 100%);
}
.project--blue .project__media--gradient {
  background:
    radial-gradient(circle at 30% 30%, rgba(59,130,246,0.55), transparent 60%),
    radial-gradient(circle at 70% 70%, rgba(139,92,246,0.35), transparent 60%),
    linear-gradient(135deg, #0a1230 0%, #111a3d 100%);
}

.sign-motif, .athena-motif {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
}
.sign-motif::before {
  content: "";
  width: 66%;
  height: 66%;
  background:
    radial-gradient(circle at 50% 50%, rgba(255,255,255,0.25) 0 2px, transparent 3px) 0 0 / 14px 14px,
    conic-gradient(from 210deg, rgba(56,189,248,0.9), rgba(139,92,246,0.9), rgba(56,189,248,0.9));
  border-radius: 50%;
  filter: blur(0.5px);
  mask: radial-gradient(circle, #000 58%, transparent 60%);
  -webkit-mask: radial-gradient(circle, #000 58%, transparent 60%);
  animation: spin 18s linear infinite;
}
@keyframes spin { to { transform: rotate(1turn); } }

.athena-motif::before {
  content: "";
  position: absolute;
  inset: 18% 18%;
  border-radius: 22px;
  background: linear-gradient(160deg, rgba(255,255,255,0.16), rgba(255,255,255,0.02));
  border: 1px solid rgba(255,255,255,0.22);
  backdrop-filter: blur(10px);
}
.athena-motif::after {
  content: "Athena";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  letter-spacing: 0.2em;
  color: rgba(255,255,255,0.88);
  font-size: 1rem;
  text-transform: uppercase;
}

/* =========================================================================
   ABOUT
   ========================================================================= */

.about {
  padding: var(--rail) 0;
  background:
    radial-gradient(800px 400px at 10% 0%, rgba(139,92,246,0.05), transparent 60%),
    var(--bg);
  border-top: 1px solid var(--line);
}
.about__inner {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 72px;
  align-items: start;
}
@media (max-width: 960px) {
  .about__inner { grid-template-columns: 1fr; gap: 40px; }
}

.about__portrait {
  position: sticky;
  top: 120px;
  margin: 0;
}
.about__portrait img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--line);
}
.about__portrait figcaption {
  margin-top: 18px;
  display: flex;
  justify-content: space-between;
  font-size: var(--f-small);
  color: var(--muted);
  padding: 0 6px;
}
.about__portrait figcaption span:last-child { font-weight: 500; }

.about__body .eyebrow { margin-bottom: 14px; }
.about__lede {
  font-size: var(--f-lede);
  color: var(--ink);
  line-height: 1.55;
  margin: 0 0 22px;
}
.about__body p {
  color: var(--muted);
  line-height: 1.7;
  margin: 0 0 20px;
  max-width: 62ch;
}
.about__body p em { color: var(--ink); font-style: normal; font-weight: 500; }

.about__pillars {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 36px;
}
@media (max-width: 560px) { .about__pillars { grid-template-columns: 1fr; } }

.about__pillars article {
  padding: 24px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  transition: transform 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out), border-color 0.3s var(--ease);
}
.about__pillars article:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-soft);
  border-color: var(--line-strong);
}
.pillar__ico {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(139,92,246,0.12), rgba(56,189,248,0.12));
  color: var(--violet);
  font-size: 1.1rem;
  margin-bottom: 14px;
}
.about__pillars h3 {
  font-size: 1.0625rem;
  letter-spacing: -0.01em;
  margin: 0 0 6px;
  font-weight: 700;
}
.about__pillars p {
  font-size: var(--f-small);
  color: var(--muted);
  line-height: 1.55;
  margin: 0;
}

/* =========================================================================
   FEATURE (deep-dive) base
   ========================================================================= */

.feature {
  padding: var(--rail) 0;
  position: relative;
  overflow: hidden;
}
.feature--light { background: var(--bg-elev); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.feature--tint-green {
  background:
    radial-gradient(700px 340px at 90% 10%, rgba(34,197,94,0.08), transparent 60%),
    linear-gradient(180deg, #f3fbf6 0%, #ecf7f0 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.feature--dark {
  background:
    radial-gradient(900px 500px at 80% 0%, rgba(139,92,246,0.25), transparent 60%),
    radial-gradient(700px 400px at 10% 100%, rgba(56,189,248,0.18), transparent 60%),
    linear-gradient(180deg, #060916 0%, #0a0f22 100%);
  color: #fff;
}
.feature--bio {
  background:
    radial-gradient(700px 340px at 10% 0%, rgba(20,184,166,0.10), transparent 60%),
    linear-gradient(180deg, #f5fbfa 0%, #eef6f5 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.feature--space {
  background:
    radial-gradient(900px 500px at 80% 10%, rgba(139,92,246,0.35), transparent 60%),
    radial-gradient(700px 400px at 20% 90%, rgba(56,189,248,0.22), transparent 60%),
    linear-gradient(180deg, #05061a 0%, #0a0b2a 60%, #05061a 100%);
  color: #fff;
}

.feature__grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 72px;
  align-items: center;
}
.feature__grid--reverse .feature__visual { order: -1; }
@media (max-width: 960px) {
  .feature__grid { grid-template-columns: 1fr; gap: 48px; }
  .feature__grid--reverse .feature__visual { order: 0; }
}


.feature__copy .eyebrow { margin-bottom: 18px; }
.feature__title {
  font-size: clamp(1.875rem, 3.6vw, 3.25rem);
  letter-spacing: -0.035em;
  line-height: 1.08;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 22px;
  max-width: 22ch;
}
.feature__title--light { color: #fff; }
.feature__lede {
  font-size: var(--f-lede);
  line-height: 1.6;
  color: var(--ink-2);
  margin: 0 0 22px;
  max-width: 58ch;
}
.feature__lede--light { color: rgba(255,255,255,0.82); }
.feature__para { color: var(--muted); line-height: 1.7; margin: 0 0 22px; max-width: 58ch; }
.feature__para--light { color: rgba(255,255,255,0.72); }
.feature__copy--light .eyebrow { color: rgba(255,255,255,0.68); }

.feature__bullets {
  list-style: none;
  padding: 0;
  margin: 0 0 28px;
  display: grid;
  gap: 12px;
  max-width: 58ch;
}
.feature__bullets li {
  position: relative;
  padding-left: 26px;
  line-height: 1.6;
  color: var(--ink-2);
  font-size: 1rem;
}
.feature__bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 14px;
  height: 2px;
  background: linear-gradient(90deg, var(--violet), var(--cyan));
  border-radius: 2px;
}
.feature__bullets strong { color: var(--ink); font-weight: 600; }
.feature__bullets--light li { color: rgba(255,255,255,0.86); }
.feature__bullets--light li::before { background: linear-gradient(90deg, #c084fc, #7dd3fc); }
.feature__bullets--light strong { color: #fff; }

.feature__cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 8px; }

.feature__visual { position: relative; }
.feature__visual--frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-card);
}
.feature__visual--frame img { width: 100%; height: auto; display: block; }
.feature__visual--bio { background: #f7fbfa; }
.feature__visual--space {
  background: linear-gradient(160deg, #0b0f2e, #1a1040);
  border-color: rgba(255,255,255,0.08);
}

/* =========================================================================
   Releaf: Phone frame + stat pills + architecture
   ========================================================================= */

.phone-frame {
  position: relative;
  width: min(320px, 80%);
  margin: 0 auto;
  aspect-ratio: 9 / 19;
  border-radius: 44px;
  padding: 14px;
  background: linear-gradient(160deg, #111827, #0b1020);
  box-shadow:
    0 30px 80px rgba(15, 23, 42, 0.22),
    inset 0 0 0 1px rgba(255,255,255,0.06);
}
.phone-frame::before {
  content: "";
  position: absolute;
  top: 18px; left: 50%;
  transform: translateX(-50%);
  width: 110px;
  height: 24px;
  background: #05070d;
  border-radius: 14px;
  z-index: 2;
}
.phone-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 32px;
  display: block;
}

.stat-pill {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 14px 18px;
  background: var(--bg-elev);
  border-radius: 18px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-card);
  min-width: 150px;
}
.stat-pill strong {
  font-size: 1.375rem;
  letter-spacing: -0.02em;
  color: var(--ink);
  font-weight: 700;
  line-height: 1.1;
}
.stat-pill span { font-size: 0.8125rem; color: var(--muted); }
.stat-pill--a { top: 22%; left: -4%; }
.stat-pill--b { bottom: 18%; right: -4%; }
@media (max-width: 960px) {
  .stat-pill--a { left: 4%; }
  .stat-pill--b { right: 4%; }
}

.arch {
  margin-top: 72px;
  padding: 32px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}
.arch__title {
  font-size: 1.125rem;
  letter-spacing: -0.01em;
  margin: 0 0 22px;
  font-weight: 700;
  color: var(--ink);
}
.arch__row {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 16px;
  align-items: stretch;
  margin-bottom: 14px;
}
.arch__row:last-child {
  grid-template-columns: 1fr auto 1fr;
  max-width: 66%;
  margin: 0 auto;
}
@media (max-width: 820px) {
  .arch__row,
  .arch__row:last-child { grid-template-columns: 1fr; max-width: 100%; }
  .arch__arrow { display: none; }
}


.arch__node {
  padding: 18px 18px 20px;
  background: linear-gradient(180deg, #f8fafc, #eff2f7);
  border: 1px solid var(--line);
  border-radius: 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.arch__node span {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--muted-2);
}
.arch__node strong {
  font-size: 1rem;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.arch__node p { font-size: 0.875rem; color: var(--muted); margin: 0; line-height: 1.5; }
.arch__node--light { background: linear-gradient(180deg, #f0fdf4, #e8f7ee); }
.arch__arrow {
  display: grid;
  place-items: center;
  color: var(--muted-2);
  font-size: 1.25rem;
  font-weight: 500;
}

/* =========================================================================
   Sustainability AI: Engine grid + roadmap
   ========================================================================= */

.engine-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin: 8px 0 28px;
}
@media (max-width: 560px) { .engine-grid { grid-template-columns: 1fr; } }
.engine-grid > div {
  padding: 20px;
  background: rgba(255,255,255,0.65);
  border: 1px solid var(--line);
  border-radius: 18px;
  backdrop-filter: blur(8px);
}
.engine-grid h4 {
  font-size: 0.9375rem;
  letter-spacing: -0.01em;
  margin: 0 0 6px;
  color: var(--ink);
  font-weight: 700;
}
.engine-grid p { font-size: 0.875rem; color: var(--muted); margin: 0; line-height: 1.55; }

.roadmap {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
@media (max-width: 720px) { .roadmap { grid-template-columns: 1fr; } }
.roadmap__step {
  padding: 18px;
  background: linear-gradient(180deg, #ffffff, #f6faf8);
  border: 1px solid var(--line);
  border-radius: 18px;
  position: relative;
}
.roadmap__step span {
  display: inline-block;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--green-2);
  padding: 4px 10px;
  background: rgba(34, 197, 94, 0.12);
  border-radius: 999px;
  margin-bottom: 10px;
}
.roadmap__step p { margin: 0; color: var(--muted); font-size: 0.875rem; line-height: 1.55; }

/* =========================================================================
   Sign Language: background + challenges + pipeline
   ========================================================================= */

.sign-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.75;
}
.sign-bg svg { width: 100%; height: 100%; }

.challenges {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 8px;
}
@media (max-width: 560px) { .challenges { grid-template-columns: 1fr; } }
.challenges > div {
  padding: 18px 20px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 16px;
  backdrop-filter: blur(10px);
}
.challenges span {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: rgba(125, 211, 252, 0.9);
}
.challenges h4 {
  font-size: 1rem;
  color: #fff;
  margin: 6px 0 6px;
  letter-spacing: -0.01em;
  font-weight: 600;
}
.challenges p { color: rgba(255,255,255,0.72); margin: 0; font-size: 0.875rem; line-height: 1.55; }

.pipeline {
  position: relative;
  padding: 24px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: var(--radius);
  backdrop-filter: blur(14px);
  display: grid;
  gap: 10px;
}
.pipeline__row {
  display: grid;
  grid-template-columns: 120px 1fr;
  align-items: start;
  gap: 14px;
  padding: 12px 14px;
  border-left: 2px solid rgba(139,92,246,0.5);
  background: rgba(255,255,255,0.03);
  border-radius: 10px;
}
.pipeline__row span {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.8125rem;
  letter-spacing: 0.05em;
  color: #7dd3fc;
}
.pipeline__row p { margin: 0; color: rgba(255,255,255,0.8); font-size: 0.9375rem; line-height: 1.5; }
.pipeline__row--end { border-left-color: #22d3ee; background: rgba(34, 211, 238, 0.06); }


/* =========================================================================
   Athena: dashboard mock + pullquote
   ========================================================================= */

.dash {
  padding: 24px;
  background: linear-gradient(160deg, #ffffff, #f3f6fb);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}
.dash__bar {
  display: flex;
  gap: 6px;
  margin-bottom: 18px;
}
.dash__bar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #e2e8f0;
}
.dash__bar span:nth-child(1) { background: #fca5a5; }
.dash__bar span:nth-child(2) { background: #fcd34d; }
.dash__bar span:nth-child(3) { background: #86efac; }

.dash__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.dash__card {
  padding: 16px;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 120px;
}
.dash__card--wide { grid-column: 1 / -1; }
.dash__label {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted-2);
  font-weight: 600;
}
.dash__rows { display: grid; gap: 8px; }
.dash__rows > div {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
}
.dash__rows span { color: var(--muted); }
.dash__rows strong { color: var(--ink); font-weight: 600; letter-spacing: -0.01em; }

.dash__pill {
  display: inline-block;
  align-self: flex-start;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.75rem;
  padding: 6px 10px;
  background: rgba(0, 113, 227, 0.10);
  color: var(--blue);
  border-radius: 999px;
}
.dash__pill--soft { background: rgba(139, 92, 246, 0.12); color: var(--violet); }
.dash__bars {
  display: flex;
  align-items: flex-end;
  gap: 5px;
  height: 36px;
}
.dash__bars i {
  display: block;
  width: 8px;
  background: linear-gradient(180deg, #60a5fa, #0071e3);
  border-radius: 3px;
}
.dash__bars i:nth-child(1) { height: 30%; }
.dash__bars i:nth-child(2) { height: 55%; }
.dash__bars i:nth-child(3) { height: 75%; }
.dash__bars i:nth-child(4) { height: 60%; }
.dash__bars i:nth-child(5) { height: 90%; }

.dash__score {
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.035em;
  color: var(--ink);
  background: linear-gradient(135deg, #0071e3, #8b5cf6);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
}
.dash__list { display: grid; gap: 8px; }
.dash__list > div {
  display: flex;
  justify-content: space-between;
  padding: 8px 10px;
  background: #f8fafc;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 0.875rem;
}
.dash__list strong { color: var(--ink); font-weight: 600; }
.dash__list span { color: var(--muted); }

.pullquote {
  margin: 28px 0 0;
  padding: 20px 24px;
  border-left: 3px solid var(--blue);
  background: rgba(0, 113, 227, 0.04);
  color: var(--ink-2);
  font-size: 1.0625rem;
  line-height: 1.6;
  border-radius: 0 12px 12px 0;
  font-style: italic;
}

/* =========================================================================
   iGEM: medal + workflow
   ========================================================================= */

.medal {
  position: absolute;
  bottom: -24px;
  right: -24px;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-align: center;
  line-height: 1.1;
  box-shadow: 0 24px 60px rgba(245, 158, 11, 0.35);
}
.medal__ring {
  position: absolute;
  inset: 8px;
  border-radius: 50%;
  border: 2px dashed rgba(255,255,255,0.5);
  animation: spin 20s linear infinite;
}
@media (max-width: 560px) { .medal { width: 100px; height: 100px; font-size: 0.875rem; } }


.workflow {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
  position: relative;
}
.workflow::before {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 44px;
  height: 2px;
  background: linear-gradient(90deg, rgba(20,184,166,0.2), rgba(20,184,166,0.8), rgba(20,184,166,0.2));
  z-index: 0;
}
@media (max-width: 900px) {
  .workflow { grid-template-columns: repeat(2, 1fr); }
  .workflow::before { display: none; }
}
@media (max-width: 480px) { .workflow { grid-template-columns: 1fr; } }

.workflow__step {
  position: relative;
  z-index: 1;
  padding: 20px 18px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.workflow__step em {
  font-style: normal;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--teal);
  font-weight: 600;
}
.workflow__step h4 {
  margin: 0;
  font-size: 1rem;
  letter-spacing: -0.01em;
  color: var(--ink);
  font-weight: 700;
}
.workflow__step p { margin: 0; color: var(--muted); font-size: 0.875rem; line-height: 1.5; }

/* =========================================================================
   Astrobio-gen: space bg + readout + modalities
   ========================================================================= */

.space-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}
.orbit {
  position: absolute;
  top: 50%;
  left: 50%;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}
.orbit--a { width: 600px; height: 600px; animation: orbit 40s linear infinite; }
.orbit--b { width: 900px; height: 900px; animation: orbit 60s linear infinite reverse; }
.orbit--c { width: 1200px; height: 1200px; animation: orbit 80s linear infinite; }
.orbit::after {
  content: "";
  position: absolute;
  top: -4px; left: 50%;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #7dd3fc;
  box-shadow: 0 0 14px #38bdf8;
}
.orbit--b::after { background: #c084fc; box-shadow: 0 0 14px #8b5cf6; }
.orbit--c::after { background: #fcd34d; box-shadow: 0 0 14px #fbbf24; }
@keyframes orbit { to { transform: translate(-50%, -50%) rotate(360deg); } }

.stars {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(2px 2px at 20% 30%, rgba(255,255,255,0.9), transparent 60%),
    radial-gradient(1px 1px at 60% 70%, rgba(255,255,255,0.7), transparent 60%),
    radial-gradient(1.5px 1.5px at 80% 20%, rgba(255,255,255,0.8), transparent 60%),
    radial-gradient(1px 1px at 30% 80%, rgba(255,255,255,0.6), transparent 60%),
    radial-gradient(2px 2px at 90% 55%, rgba(255,255,255,0.9), transparent 60%),
    radial-gradient(1px 1px at 45% 15%, rgba(255,255,255,0.5), transparent 60%),
    radial-gradient(1.5px 1.5px at 15% 60%, rgba(255,255,255,0.7), transparent 60%);
  animation: twinkle 6s ease-in-out infinite alternate;
}
@keyframes twinkle { from { opacity: 0.55; } to { opacity: 1; } }

.readout {
  position: absolute;
  bottom: 20px;
  left: 20px;
  right: 20px;
  padding: 14px 18px;
  background: rgba(5, 7, 13, 0.55);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 14px;
  backdrop-filter: blur(14px);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.readout__row { display: flex; flex-direction: column; gap: 2px; }
.readout__row span {
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
}
.readout__row strong {
  font-family: "JetBrains Mono", monospace;
  font-size: 1rem;
  color: #fff;
  font-weight: 600;
}

.modalities {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}
.modalities span {
  font-size: 0.8125rem;
  padding: 6px 12px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 999px;
  color: rgba(255,255,255,0.82);
  backdrop-filter: blur(10px);
}


/* =========================================================================
   Dual mini-features (CarbonTrack + Science Seed)
   ========================================================================= */

.dual { padding: var(--rail) 0; }
.dual__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
@media (max-width: 860px) { .dual__grid { grid-template-columns: 1fr; } }

.dual__card {
  padding: 40px 36px 36px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out);
  position: relative;
  overflow: hidden;
}
.dual__card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); }
.dual__card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--dual-accent, linear-gradient(90deg, var(--green), var(--teal)));
}
.dual__card--carbon { --dual-accent: linear-gradient(90deg, #16a34a, #22c55e); }
.dual__card--seed   { --dual-accent: linear-gradient(90deg, #8b5cf6, #c084fc); }

.dual__card h3 {
  font-size: 1.375rem;
  letter-spacing: -0.02em;
  margin: 0;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.25;
}
.dual__card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}
.dual__meta {
  margin-top: auto;
  padding-top: 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  font-size: var(--f-small);
  color: var(--muted-2);
  border-top: 1px solid var(--line);
}
.link {
  color: var(--blue);
  font-weight: 600;
  transition: color 0.25s var(--ease);
}
.link:hover { color: var(--ink); }

/* =========================================================================
   Timeline
   ========================================================================= */

.timeline {
  padding: var(--rail) 0;
  background: linear-gradient(180deg, var(--bg), var(--bg-elev));
  border-top: 1px solid var(--line);
}
.timeline__list {
  list-style: none;
  padding: 0;
  margin: 0;
  position: relative;
  display: grid;
  gap: 36px;
}
.timeline__list::before {
  content: "";
  position: absolute;
  left: 17px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--line) 0%, var(--line-strong) 50%, var(--line) 100%);
}
.timeline__item {
  position: relative;
  padding: 0 0 0 56px;
}
.timeline__dot {
  position: absolute;
  left: 10px;
  top: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bg-elev);
  border: 3px solid var(--violet);
  box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.12);
}
.timeline__meta {
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 8px;
}
.timeline__date {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.8125rem;
  color: var(--muted-2);
  letter-spacing: 0.03em;
}
.timeline__org {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--violet);
  padding: 4px 10px;
  background: rgba(139, 92, 246, 0.10);
  border-radius: 999px;
}
.timeline__title {
  font-size: 1.25rem;
  margin: 0 0 8px;
  letter-spacing: -0.015em;
  color: var(--ink);
  font-weight: 700;
}
.timeline__item > p {
  margin: 0 0 12px;
  color: var(--muted);
  line-height: 1.65;
  max-width: 70ch;
}
.timeline__bullets {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.timeline__bullets li {
  font-size: 0.8125rem;
  padding: 4px 10px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
}


/* =========================================================================
   Awards
   ========================================================================= */

.awards { padding: var(--rail) 0; background: var(--bg-elev); border-top: 1px solid var(--line); }
.awards__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
@media (max-width: 960px) { .awards__grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .awards__grid { grid-template-columns: 1fr; } }

.award {
  padding: 28px 24px 28px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  gap: 10px;
  position: relative;
  overflow: hidden;
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out);
}
.award:hover { transform: translateY(-3px); box-shadow: var(--shadow-card); }
.award::after {
  content: "";
  position: absolute;
  top: -40px; right: -40px;
  width: 140px; height: 140px;
  border-radius: 50%;
  background: var(--award-accent, radial-gradient(circle, rgba(139, 92, 246, 0.18), transparent 70%));
  pointer-events: none;
}
.award--gold    { --award-accent: radial-gradient(circle, rgba(245, 158, 11, 0.22), transparent 70%); }
.award--silver  { --award-accent: radial-gradient(circle, rgba(148, 163, 184, 0.25), transparent 70%); }
.award--blue    { --award-accent: radial-gradient(circle, rgba(59, 130, 246, 0.22), transparent 70%); }
.award--emerald { --award-accent: radial-gradient(circle, rgba(34, 197, 94, 0.22), transparent 70%); }

.award__badge {
  align-self: flex-start;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 6px 12px;
  border-radius: 999px;
  color: #fff;
  background: var(--badge-bg, var(--ink));
  position: relative;
  z-index: 1;
}
.award--gold    .award__badge { background: linear-gradient(135deg, #f59e0b, #fbbf24); color: #3b2300; }
.award--silver  .award__badge { background: linear-gradient(135deg, #94a3b8, #cbd5e1); color: #1f2937; }
.award--blue    .award__badge { background: linear-gradient(135deg, #0071e3, #60a5fa); }
.award--emerald .award__badge { background: linear-gradient(135deg, #16a34a, #22c55e); }

.award h3 {
  font-size: 1.0625rem;
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin: 2px 0 2px;
  font-weight: 700;
  color: var(--ink);
}
.award__role {
  font-size: 0.8125rem;
  color: var(--muted-2);
  margin: 0;
  font-weight: 500;
}
.award > p {
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--muted);
  margin: 6px 0 0;
}

/* =========================================================================
   Skills
   ========================================================================= */

.skills { padding: var(--rail) 0; border-top: 1px solid var(--line); }
.skills__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
@media (max-width: 1000px) { .skills__grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px)  { .skills__grid { grid-template-columns: 1fr; } }

.skill-col {
  padding: 28px 24px 24px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  transition: transform 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out), border-color 0.3s var(--ease);
}
.skill-col:hover { transform: translateY(-3px); box-shadow: var(--shadow-soft); border-color: var(--line-strong); }
.skill-col__head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 14px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.skill-col__head span {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: #fff;
  padding: 4px 8px;
  background: linear-gradient(135deg, var(--violet), var(--blue));
  border-radius: 6px;
  font-weight: 600;
}
.skill-col__head h3 {
  font-size: 1rem;
  letter-spacing: -0.01em;
  margin: 0;
  font-weight: 700;
  color: var(--ink);
}
.skill-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}
.skill-col li {
  font-size: 0.875rem;
  color: var(--muted);
  padding-left: 14px;
  position: relative;
  line-height: 1.55;
}
.skill-col li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 1.5px;
  background: var(--muted-2);
  border-radius: 2px;
}


/* =========================================================================
   FAQ
   ========================================================================= */

.faq { padding: var(--rail) 0; background: var(--bg-elev); border-top: 1px solid var(--line); }
.faq__inner {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 64px;
  align-items: start;
}
@media (max-width: 900px) {
  .faq__inner { grid-template-columns: 1fr; gap: 40px; }
}
.faq__head { position: sticky; top: 120px; }
.faq__head .section-title { font-size: clamp(1.75rem, 3vw, 2.5rem); }

.faq__list { display: grid; gap: 10px; }
.faq__item {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.faq__item[open] {
  background: var(--bg-elev);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-soft);
}
.faq__item summary {
  list-style: none;
  cursor: pointer;
  padding: 20px 24px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.01em;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item .chev {
  font-size: 1.25rem;
  color: var(--muted-2);
  transition: transform 0.3s var(--ease), color 0.3s var(--ease);
  font-weight: 300;
  line-height: 1;
}
.faq__item[open] .chev { transform: rotate(45deg); color: var(--violet); }
.faq__item p {
  margin: 0;
  padding: 0 24px 22px;
  color: var(--muted);
  line-height: 1.65;
  font-size: 0.9375rem;
}
.faq__item a { color: var(--blue); font-weight: 500; }

/* =========================================================================
   Closing CTA
   ========================================================================= */

.cta {
  position: relative;
  padding: calc(var(--rail) + 16px) 0 var(--rail);
  color: #fff;
  background:
    radial-gradient(800px 400px at 20% 20%, rgba(139,92,246,0.32), transparent 60%),
    radial-gradient(600px 360px at 80% 80%, rgba(56,189,248,0.22), transparent 60%),
    linear-gradient(180deg, #05070d 0%, #090d1e 100%);
  overflow: hidden;
}
.cta__canvas { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0.45; pointer-events: none; }
.cta__inner { position: relative; z-index: 1; }
.cta__title {
  font-size: clamp(2rem, 4.4vw, 3.75rem);
  letter-spacing: -0.035em;
  line-height: 1.08;
  font-weight: 700;
  margin: 10px 0 22px;
  max-width: 22ch;
}
.cta__lede {
  font-size: var(--f-lede);
  line-height: 1.6;
  color: rgba(255,255,255,0.78);
  margin: 0 0 48px;
  max-width: 70ch;
}
.cta__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 36px;
}
@media (max-width: 900px) { .cta__grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 500px) { .cta__grid { grid-template-columns: 1fr; } }

.cta__card {
  padding: 26px 22px 22px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: var(--radius-sm);
  backdrop-filter: blur(14px);
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: background 0.35s var(--ease), border-color 0.35s var(--ease), transform 0.35s var(--ease-out);
}
.cta__card:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.22);
  transform: translateY(-3px);
}
.cta__card-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
}
.cta__card strong {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: #fff;
  line-height: 1.4;
  word-break: break-word;
}
.cta__card-cta {
  margin-top: auto;
  padding-top: 10px;
  font-size: 0.8125rem;
  color: #7dd3fc;
  font-weight: 500;
}
.cta__meta {
  font-size: var(--f-small);
  color: rgba(255,255,255,0.65);
  max-width: 70ch;
  margin: 0;
}


/* =========================================================================
   Footer
   ========================================================================= */

.footer {
  background: #05070d;
  color: rgba(255,255,255,0.78);
  padding: 64px 0 28px;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.footer__inner {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
@media (max-width: 820px) {
  .footer__inner { grid-template-columns: 1fr; gap: 32px; }
}
.footer__brand { display: flex; gap: 14px; align-items: flex-start; }
.footer__mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--violet), var(--cyan));
  color: #fff;
  flex-shrink: 0;
}
.footer__brand strong {
  display: block;
  color: #fff;
  font-size: 1rem;
  letter-spacing: -0.01em;
  margin-bottom: 4px;
}
.footer__brand p {
  margin: 0;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.5;
}

.footer__cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 520px) { .footer__cols { grid-template-columns: repeat(2, 1fr); } }
.footer__cols h4 {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  margin: 0 0 14px;
  font-weight: 600;
}
.footer__cols a {
  display: block;
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.78);
  padding: 5px 0;
  transition: color 0.25s var(--ease);
}
.footer__cols a:hover { color: #fff; }

.footer__meta {
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.48);
}

/* =========================================================================
   Reveal animation + reduced motion
   ========================================================================= */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
  will-change: opacity, transform;
}
.reveal.is-in {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* Selection + scrollbar polish */
::selection { background: rgba(139,92,246,0.28); color: var(--ink); }
html { scrollbar-color: var(--line-strong) transparent; }

/* Small screen tune-up for very narrow hero */
@media (max-width: 520px) {
  .hero { padding: 120px 0 80px; }
  .hero__title { max-width: unset; }
  .about__portrait { position: relative; top: 0; }
  .faq__head { position: relative; top: 0; }
}