/* =====================================================================
   朱聪聪 · 个人主页
   设计系统：Cohere editorial restraint
   字体：Bricolage Grotesque (display) / Hanken Grotesk (body) / JetBrains Mono (label)
   ===================================================================== */

/* ---------- Design Tokens ---------- */
:root {
  /* Brand & accent */
  --cohere-black: #000000;
  --primary: #17171c;
  --ink: #212121;
  --deep-green: #003c33;
  --dark-navy: #071829;

  /* Surface */
  --canvas: #ffffff;
  --soft-stone: #eeece7;
  --pale-green: #edfce9;
  --pale-blue: #f1f5ff;
  --card-border: #f2f2f2;

  /* Text & rules */
  --body-muted: #616161;
  --muted: #93939f;
  --slate: #75758a;
  --hairline: #d9d9dd;
  --border-light: #e5e7eb;

  /* Accent */
  --action-blue: #1863dc;
  --coral: #ff7759;
  --coral-soft: #ffad9b;

  /* On-color */
  --on-primary: #ffffff;
  --on-dark: #ffffff;

  /* Radius */
  --r-xs: 4px;
  --r-sm: 8px;
  --r-md: 16px;
  --r-lg: 22px;
  --r-xl: 30px;
  --r-pill: 32px;
  --r-full: 9999px;

  /* Spacing */
  --s-xxs: 2px;
  --s-xs: 6px;
  --s-sm: 8px;
  --s-md: 12px;
  --s-lg: 16px;
  --s-xl: 24px;
  --s-xxl: 32px;
  --s-section: 80px;

  /* Type families */
  --font-display: "Bricolage Grotesque", "Hanken Grotesk", ui-sans-serif, system-ui, sans-serif;
  --font-body: "Hanken Grotesk", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  /* Layout */
  --container: 1240px;
  --container-narrow: 920px;
  --nav-h: 68px;

  /* Easing */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out-quint: cubic-bezier(0.83, 0, 0.17, 1);
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 24px);
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  color: var(--ink);
  background: var(--canvas);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  font-feature-settings: "ss01", "cv01";
  text-wrap: pretty;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
ul, ol { list-style: none; }

::selection { background: var(--coral); color: var(--canvas); }

:focus-visible {
  outline: 2px solid var(--action-blue);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- Typography helpers ---------- */
.mono-label {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 400;
  line-height: 1.4;
  letter-spacing: 0.28px;
  text-transform: uppercase;
  color: var(--muted);
}
.mono-label .dot { color: var(--coral); }

.display {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--primary);
}
.section-heading {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--primary);
  text-wrap: balance;
}
/* 不可断行标题（如联系区一句话） */
.section-heading.one-line {
  white-space: nowrap;
  font-size: clamp(17px, 5.5vw, 56px);
  text-wrap: nowrap;
}
.nowrap { white-space: nowrap; }
.card-heading {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 26px;
  line-height: 1.2;
  letter-spacing: -0.01em;
}
.body-large { font-size: 18px; line-height: 1.55; color: var(--ink); }
.body-muted { color: var(--body-muted); }
.muted { color: var(--muted); }

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 32px;
}
.container-narrow { max-width: var(--container-narrow); }

.section { padding-block: clamp(72px, 9vw, 128px); }
.section-tight { padding-block: clamp(56px, 6vw, 88px); }

.section-head {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 32px 48px;
  align-items: end;
  margin-bottom: clamp(40px, 5vw, 72px);
}
.section-head .kicker { align-self: start; }
.section-head .lead { max-width: 56ch; color: var(--body-muted); font-size: 17px; line-height: 1.6; }

.hairline { height: 1px; background: var(--hairline); border: 0; }

/* ---------- Grain overlay ---------- */
.grain {
  position: fixed;
  inset: 0;
  z-index: 9000;
  pointer-events: none;
  opacity: 0.04;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- Custom cursor (desktop only) ---------- */
.cursor-dot, .cursor-ring {
  position: fixed;
  top: 0; left: 0;
  border-radius: 50%;
  pointer-events: none;
  z-index: 9500;
  mix-blend-mode: difference;
  will-change: transform;
}
.cursor-dot {
  width: 6px; height: 6px;
  background: var(--canvas);
}
.cursor-ring {
  width: 34px; height: 34px;
  border: 1px solid var(--canvas);
}
@media (hover: none), (pointer: coarse) {
  .cursor-dot, .cursor-ring { display: none; }
}

/* ---------- Scroll progress ---------- */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 0%;
  background: var(--coral);
  z-index: 9600;
  will-change: width;
}

/* ---------- Announcement bar ---------- */
.announce {
  background: var(--cohere-black);
  color: var(--on-dark);
  height: 36px;
  display: flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  overflow: hidden;
  position: relative;
  z-index: 60;
}
.announce .container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  width: 100%;
}
.announce .pulse {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--coral);
  box-shadow: 0 0 0 0 rgba(255,119,89,0.6);
  animation: pulse 2.2s var(--ease-out-expo) infinite;
  flex: none;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(255,119,89,0.55); }
  70% { box-shadow: 0 0 0 9px rgba(255,119,89,0); }
  100% { box-shadow: 0 0 0 0 rgba(255,119,89,0); }
}
.announce .sep { opacity: 0.4; }
.announce a { text-decoration: underline; text-underline-offset: 3px; opacity: 0.85; }
.announce a:hover { opacity: 1; }

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.82);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s ease, background .3s ease;
}
.nav.scrolled { border-bottom-color: var(--hairline); }
.nav-inner {
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--primary);
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.brand .brand-en {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--muted);
  text-transform: uppercase;
  white-space: nowrap;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links a {
  font-size: 14px;
  color: var(--ink);
  position: relative;
  padding-block: 4px;
  transition: color .25s ease;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .35s var(--ease-out-expo);
}
.nav-links a:hover { color: var(--primary); }
.nav-links a:hover::after { transform: scaleX(1); transform-origin: left; }
.nav-cta { display: flex; align-items: center; gap: 18px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  padding: 14px 24px;
  border-radius: var(--r-pill);
  transition: transform .3s var(--ease-out-expo), background .25s ease, color .25s ease, border-color .25s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: var(--on-primary);
}
.btn-primary:hover { background: var(--cohere-black); transform: translateY(-2px); }
.btn-ghost {
  color: var(--ink);
  padding: 8px 0;
  border-radius: 0;
}
.btn-ghost .arrow { transition: transform .3s var(--ease-out-expo); }
.btn-ghost:hover { color: var(--primary); }
.btn-ghost:hover .arrow { transform: translateX(5px); }
.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--primary);
}
.btn-outline:hover { background: var(--primary); color: var(--canvas); }
.btn .arrow { display: inline-block; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding-top: clamp(48px, 7vw, 96px);
  padding-bottom: clamp(40px, 5vw, 72px);
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}
.hero-kicker {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
}
.hero-kicker .line { height: 1px; width: 56px; background: var(--primary); }
.hero-name {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(72px, 17vw, 232px);
  line-height: 0.86;
  letter-spacing: -0.05em;
  color: var(--deep-green);
  display: flex;
  flex-wrap: wrap;
  gap: 0 0.02em;
}
.hero-name .char {
  display: inline-block;
  will-change: transform, opacity;
}
.hero-name .accent { color: var(--coral); }
.hero-name .period { color: var(--coral); }
.hero-sub {
  margin-top: 28px;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(22px, 2.6vw, 34px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--ink);
  max-width: 22ch;
}
.hero-sub .em { color: var(--primary); border-bottom: 2px solid var(--coral); padding-bottom: 1px; }
.hero-lead {
  margin-top: 28px;
  max-width: 54ch;
  font-size: 17px;
  line-height: 1.65;
  color: var(--body-muted);
}
.hero-actions {
  margin-top: 40px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px 28px;
}
.hero-facts {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--hairline);
}
.hero-facts .fact {
  padding: 24px 24px 4px 0;
  border-right: 1px solid var(--hairline);
}
.hero-facts .fact:last-child { border-right: 0; padding-right: 0; }
.hero-facts .fact:not(:first-child) { padding-left: 24px; }
.hero-facts .fact .num {
  font-family: var(--font-display);
  font-size: clamp(34px, 4.4vw, 52px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--primary);
}
.hero-facts .fact .num .unit { font-size: 0.42em; color: var(--muted); margin-left: 2px; letter-spacing: 0; }
.hero-facts .fact .lbl {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
  text-transform: uppercase;
}

/* ---------- Marquee ---------- */
.marquee {
  border-block: 1px solid var(--hairline);
  background: var(--canvas);
  overflow: hidden;
  padding-block: 22px;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee-track {
  display: flex;
  align-items: center;
  gap: 0;
  width: max-content;
  will-change: transform;
}
.marquee-item {
  font-family: var(--font-display);
  font-size: clamp(22px, 2.4vw, 30px);
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--primary);
  padding-inline: 28px;
  display: flex;
  align-items: center;
  gap: 28px;
  white-space: nowrap;
}
.marquee-item .star { color: var(--coral); font-size: 0.7em; }

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}
.about-item {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 24px;
  padding-block: 36px;
  border-top: 1px solid var(--hairline);
  align-items: start;
}
.about-item:last-child { border-bottom: 1px solid var(--hairline); }
.about-item .idx {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.04em;
  padding-top: 6px;
}
.about-item h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 24px;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--primary);
  margin-bottom: 10px;
}
.about-item p { color: var(--body-muted); font-size: 16px; line-height: 1.65; max-width: 70ch; }

/* ---------- Stats band (deep green) ---------- */
.stats {
  background: var(--deep-green);
  color: var(--on-dark);
  position: relative;
  overflow: hidden;
}
.stats::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(255,119,89,0.16), transparent 45%);
  pointer-events: none;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.12);
  position: relative;
}
.stat {
  background: var(--deep-green);
  padding: clamp(32px, 4vw, 56px) clamp(24px, 3vw, 40px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 200px;
}
.stat .stat-lbl {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
}
.stat .stat-num {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(48px, 6vw, 84px);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--canvas);
  margin-top: 24px;
}
.stat .stat-num .unit { font-size: 0.34em; color: var(--coral); margin-left: 4px; letter-spacing: 0; }
.stat .stat-note { margin-top: 14px; font-size: 14px; color: rgba(255,255,255,0.55); line-height: 1.5; }

/* ---------- Experience ---------- */
.exp-list { border-top: 1px solid var(--hairline); }
.exp-row {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 48px;
  padding-block: clamp(36px, 4vw, 56px);
  border-bottom: 1px solid var(--hairline);
  position: relative;
}
.exp-row .exp-meta { position: relative; }
.exp-row .exp-date {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--muted);
  text-transform: uppercase;
}
.exp-row .exp-tag {
  display: inline-block;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--coral);
  border: 1px solid var(--coral);
  border-radius: var(--r-full);
  padding: 4px 12px;
}
.exp-row .exp-co {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--primary);
}
.exp-row .exp-role {
  margin-top: 6px;
  font-size: 16px;
  color: var(--coral);
  font-weight: 500;
}
.exp-row .exp-duties {
  margin-top: 24px;
  display: grid;
  gap: 18px;
}
.exp-row .exp-duties li {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 12px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--body-muted);
}
.exp-row .exp-duties li .n {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  padding-top: 4px;
}

/* ---------- Capabilities ---------- */
.cap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
}
.cap-card {
  background: var(--canvas);
  padding: clamp(28px, 3vw, 40px);
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 240px;
  position: relative;
  transition: background .35s ease;
  overflow: hidden;
}
.cap-card::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%;
  height: 3px;
  background: var(--coral);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .45s var(--ease-out-expo);
}
.cap-card:hover { background: var(--soft-stone); }
.cap-card:hover::after { transform: scaleX(1); }
.cap-card .cap-idx {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.08em;
}
.cap-card .cap-ico {
  width: 40px; height: 40px;
  display: grid; place-items: center;
  color: var(--primary);
}
.cap-card h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--primary);
  margin-top: auto;
}
.cap-card p { font-size: 14px; line-height: 1.6; color: var(--body-muted); }

/* ---------- Education ---------- */
.edu {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 48px;
  align-items: start;
  padding-block: clamp(36px, 4vw, 52px);
  border-block: 1px solid var(--hairline);
}
.edu .edu-date {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--muted);
  text-transform: uppercase;
}
.edu .edu-school {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(28px, 3.4vw, 44px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--primary);
}
.edu .edu-major {
  margin-top: 10px;
  font-size: 18px;
  color: var(--ink);
}
.edu .edu-degree {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--coral);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ---------- Contact (dark band) ---------- */
.contact {
  background: var(--deep-green);
  color: var(--on-dark);
  position: relative;
  overflow: hidden;
}
.contact::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 15% 85%, rgba(255,119,89,0.18), transparent 40%);
  pointer-events: none;
}
.contact .mono-label { color: rgba(255,255,255,0.55); }
.contact .section-heading { color: var(--canvas); }
/* 联系区标题单列占满宽度，保证一句话单行不溢出 */
.contact .section-head { grid-template-columns: 1fr; gap: 20px; }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
  position: relative;
}
.contact-info { display: grid; gap: 4px; }
.contact-info .ci-row {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 16px;
  padding-block: 22px;
  border-bottom: 1px solid rgba(255,255,255,0.14);
  align-items: baseline;
}
.contact-info .ci-row:first-of-type { border-top: 1px solid rgba(255,255,255,0.14); }
.contact-info .ci-key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
}
.contact-info .ci-val {
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: -0.01em;
  color: var(--canvas);
  word-break: break-all;
}
.contact-info .ci-val a { transition: color .25s ease; }
.contact-info .ci-val a:hover { color: var(--coral); }

/* Netlify form card */
.form-card {
  background: var(--canvas);
  color: var(--ink);
  border-radius: var(--r-lg);
  padding: clamp(28px, 3vw, 40px);
}
.form-card .form-title {
  font-family: var(--font-display);
  font-size: 24px;
  letter-spacing: -0.01em;
  color: var(--primary);
  margin-bottom: 6px;
}
.form-card .form-sub { font-size: 14px; color: var(--body-muted); margin-bottom: 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.field input, .field textarea {
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--ink);
  background: var(--canvas);
  border: 1px solid var(--border-light);
  border-radius: var(--r-xs);
  padding: 12px 14px;
  transition: border-color .2s ease, box-shadow .2s ease;
  width: 100%;
}
.field input:focus, .field textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(23,23,28,0.06);
}
.field textarea { resize: vertical; min-height: 110px; }
.form-card .btn-primary { width: 100%; justify-content: center; margin-top: 8px; }
.form-status {
  margin-top: 14px;
  font-size: 13px;
  font-family: var(--font-mono);
  color: var(--coral);
  min-height: 18px;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--primary);
  color: rgba(255,255,255,0.7);
  padding-block: clamp(56px, 6vw, 80px) 32px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  align-items: end;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.14);
}
.footer-big {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(40px, 7vw, 96px);
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: var(--canvas);
}
.footer-big .accent { color: var(--coral); }
.footer-cta { justify-self: end; }
.footer-cta .btn-outline { color: var(--canvas); border-color: rgba(255,255,255,0.4); }
.footer-cta .btn-outline:hover { background: var(--canvas); color: var(--primary); border-color: var(--canvas); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  margin-top: 28px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: rgba(255,255,255,0.5);
}
.footer-bottom a:hover { color: var(--canvas); }
.footer-links { display: flex; gap: 24px; }

/* ---------- Reveal (anime.js targets) ---------- */
.reveal { opacity: 0; }
.reveal-up { opacity: 0; transform: translateY(28px); }
.reveal-fade { opacity: 0; }
.char-init { opacity: 0; transform: translateY(0.3em); }

/* ---------- Mobile menu ---------- */
.menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 40px; height: 40px;
  align-items: center;
  justify-content: center;
}
.menu-btn span {
  display: block;
  width: 22px; height: 2px;
  background: var(--primary);
  transition: transform .3s var(--ease-out-expo), opacity .2s ease;
}
.menu-btn.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-btn.open span:nth-child(2) { opacity: 0; }
.menu-btn.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 49;
  background: var(--canvas);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px 32px 40px;
  transform: translateY(-100%);
  transition: transform .5s var(--ease-out-expo);
}
.mobile-menu.open { transform: translateY(0); }
.mobile-menu a {
  font-family: var(--font-display);
  font-size: 38px;
  letter-spacing: -0.02em;
  color: var(--primary);
  padding-block: 10px;
  border-bottom: 1px solid var(--hairline);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.mobile-menu a .idx { font-family: var(--font-mono); font-size: 13px; color: var(--muted); }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .cap-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .section-head { grid-template-columns: 1fr; gap: 20px; }
}

@media (max-width: 860px) {
  .nav-links { display: none; }
  .menu-btn { display: inline-flex; }
  .hide-sm { display: none !important; }
  .hero-facts { grid-template-columns: 1fr; }
  .hero-facts .fact { border-right: 0; border-bottom: 1px solid var(--hairline); padding: 22px 0; }
  .hero-facts .fact:last-child { border-bottom: 0; }
  .hero-facts .fact:not(:first-child) { padding-left: 0; }
  .exp-row { grid-template-columns: 1fr; gap: 20px; }
  .edu { grid-template-columns: 1fr; gap: 16px; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .footer-cta { justify-self: start; }
}

@media (max-width: 640px) {
  .container { padding-inline: 20px; }
  .section { padding-block: 64px; }
  .hide-xs { display: none !important; }
  .announce { font-size: 11px; }
  .announce .container { gap: 8px; }
  .cap-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .hero-actions { gap: 16px; }
  .about-item { grid-template-columns: 1fr; gap: 8px; }
  .about-item .idx { padding-top: 0; }
  .hero-name { font-size: clamp(60px, 22vw, 120px); }
  .nav-cta .btn-ghost { display: none; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
  .reveal, .reveal-up, .reveal-fade, .char-init { opacity: 1 !important; transform: none !important; }
  .marquee-track { animation: none !important; }
}