/* 梁建盈 · Resume — editorial dark */
:root {
  --bg: #0c0c0b;
  --bg-elevated: #141412;
  --bg-card: #161613;
  --text: #e8e6e0;
  --text-muted: #9a968c;
  --text-faint: #5c5952;
  --line: rgba(232, 230, 224, 0.08);
  --line-strong: rgba(232, 230, 224, 0.16);
  --accent: #c4a574;
  --accent-soft: rgba(196, 165, 116, 0.14);
  --accent-glow: rgba(196, 165, 116, 0.35);
  --serif: "Instrument Serif", "Songti SC", "Noto Serif SC", Georgia, serif;
  --sans: "DM Sans", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --header-h: 4rem;
  --max: 68rem;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 1rem);
}

@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;
  }
  .reveal { opacity: 1 !important; transform: none !important; }
  .cursor-glow { display: none !important; }
}

body {
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

::selection {
  background: var(--accent-soft);
  color: var(--accent);
}

a {
  color: inherit;
  text-decoration: none;
}

ul { list-style: none; }

img { max-width: 100%; display: block; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--accent);
  color: var(--bg);
  font-weight: 500;
}
.skip-link:focus {
  left: var(--gutter);
  top: 0.5rem;
}

/* Ambient */
.noise {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 50;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

.cursor-glow {
  pointer-events: none;
  position: fixed;
  width: 28rem;
  height: 28rem;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  opacity: 0;
  z-index: 0;
  transition: opacity 0.4s var(--ease);
  mix-blend-mode: soft-light;
  will-change: left, top;
}

body.has-pointer .cursor-glow.is-on {
  opacity: 0.45;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--header-h);
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  background: rgba(12, 12, 11, 0.72);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease);
}
.site-header.scrolled {
  border-bottom-color: var(--line);
}

.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
  height: 100%;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.logo {
  font-family: var(--serif);
  font-size: 1.35rem;
  letter-spacing: 0.04em;
  color: var(--text);
  transition: color 0.25s var(--ease);
}
.logo:hover { color: var(--accent); }

.nav {
  display: none;
  gap: 1.75rem;
  margin-left: auto;
}
.nav a {
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  transition: color 0.25s var(--ease);
}
.nav a:hover,
.nav a:focus-visible {
  color: var(--text);
}

.github-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin-left: auto;
  padding: 0.4rem 0.85rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  color: var(--text-muted);
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease), background 0.25s var(--ease);
}
.github-pill:hover,
.github-pill:focus-visible {
  color: var(--accent);
  border-color: rgba(196, 165, 116, 0.45);
  background: var(--accent-soft);
}

@media (min-width: 768px) {
  .nav { display: flex; }
  .github-pill { margin-left: 0; }
}

/* Hero */
.hero {
  position: relative;
  padding: clamp(4.5rem, 12vw, 8rem) var(--gutter) clamp(4rem, 10vw, 7rem);
  min-height: min(92vh, 52rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-inner {
  max-width: var(--max);
  margin: 0 auto;
  width: 100%;
  position: relative;
  z-index: 1;
}

.eyebrow {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.hero-name {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 1.25rem;
}

.name-cn {
  font-family: var(--serif);
  font-size: clamp(3.25rem, 10vw, 5.75rem);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: 0.02em;
  color: var(--text);
}

.name-en {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.25rem, 3.5vw, 1.75rem);
  font-weight: 400;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

.name-divider {
  width: 3rem;
  height: 1px;
  background: var(--accent);
  margin: 0.65rem 0 0.35rem;
  transform-origin: left;
}

.hero-role {
  font-size: clamp(1.05rem, 2.4vw, 1.25rem);
  color: var(--text-muted);
  margin-bottom: 1.75rem;
  font-weight: 400;
}

.role-accent {
  color: var(--text);
  font-weight: 500;
}

.role-sep {
  margin: 0 0.55rem;
  color: var(--text-faint);
}

.hero-lead {
  max-width: 34rem;
  font-size: clamp(1rem, 2vw, 1.125rem);
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 2rem;
}

.br-desktop { display: none; }
@media (min-width: 640px) {
  .br-desktop { display: inline; }
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 0.85rem;
  font-size: 0.875rem;
  color: var(--text-faint);
  margin-bottom: 2.5rem;
}

.hero-meta .dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--text-faint);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.btn-primary,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.35rem;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  border-radius: 999px;
  transition: transform 0.3s var(--ease), background 0.25s var(--ease), border-color 0.25s var(--ease), color 0.25s var(--ease), box-shadow 0.3s var(--ease);
}

.btn-primary {
  background: var(--accent);
  color: #1a1610;
  border: 1px solid transparent;
}
.btn-primary:hover,
.btn-primary:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 8px 28px rgba(196, 165, 116, 0.28);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--line-strong);
}
.btn-ghost:hover,
.btn-ghost:focus-visible {
  color: var(--text);
  border-color: rgba(232, 230, 224, 0.28);
}

.hero-line {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-strong) 20%, var(--line-strong) 80%, transparent);
}

/* Sections */
.section {
  padding: clamp(4rem, 10vw, 6.5rem) var(--gutter);
  border-bottom: 1px solid var(--line);
}

.section-grid {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  gap: 2rem;
}

@media (min-width: 900px) {
  .section-grid {
    grid-template-columns: 12rem 1fr;
    gap: 3rem;
    align-items: start;
  }
}

.section-label h2 {
  font-family: var(--serif);
  font-size: 1.75rem;
  font-weight: 400;
  letter-spacing: 0.02em;
}

.label-num {
  display: block;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.section-body .lead {
  font-size: clamp(1.05rem, 2.2vw, 1.2rem);
  line-height: 1.8;
  color: var(--text-muted);
  max-width: 40rem;
  margin-bottom: 2.5rem;
}

.fact-list {
  display: grid;
  gap: 1.25rem;
  max-width: 28rem;
}
.fact-list > div {
  display: grid;
  grid-template-columns: 6.5rem 1fr;
  gap: 1rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--line);
}
.fact-list dt {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
  padding-top: 0.15rem;
}
.fact-list dd {
  font-size: 0.95rem;
  color: var(--text);
}

/* Jobs */
.job + .job,
.edu {
  margin-top: 3rem;
  padding-top: 3rem;
  border-top: 1px solid var(--line);
}
.job:first-child { margin-top: 0; }

.job-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  margin-bottom: 1.25rem;
}

.job-head h3 {
  font-family: var(--serif);
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  font-weight: 400;
  letter-spacing: 0.01em;
  margin-bottom: 0.25rem;
}

.job-role {
  font-size: 0.9rem;
  color: var(--accent);
  font-weight: 500;
}

.job-head time {
  font-size: 0.8125rem;
  color: var(--text-faint);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.job-points {
  display: grid;
  gap: 0.75rem;
  max-width: 42rem;
}
.job-points li {
  position: relative;
  padding-left: 1.15rem;
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
}
.job-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 5px;
  height: 1px;
  background: var(--accent);
}
.job-points strong {
  color: var(--text);
  font-weight: 500;
}

.job-outcome {
  margin-top: 1.5rem;
  padding: 1rem 1.15rem;
  max-width: 42rem;
  background: var(--accent-soft);
  border-left: 2px solid var(--accent);
  font-size: 0.9rem;
  color: var(--text-muted);
}
.outcome-label {
  display: inline-block;
  margin-right: 0.65rem;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

/* Skills */
.skill-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}
@media (min-width: 560px) {
  .skill-grid { grid-template-columns: 1fr 1fr; }
}

.skill-card {
  padding: 1.5rem 1.4rem;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 2px;
  transition: border-color 0.35s var(--ease), transform 0.35s var(--ease), background 0.35s var(--ease);
}
.skill-card:hover {
  border-color: rgba(196, 165, 116, 0.28);
  background: #1a1a16;
  transform: translateY(-2px);
}

.skill-card h3 {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--line);
}

.skill-card ul {
  display: grid;
  gap: 0.55rem;
}
.skill-card li {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.5;
}
.skill-card em {
  font-style: normal;
  color: var(--text);
  font-weight: 500;
}

/* Contact */
.contact {
  border-bottom: none;
  padding-bottom: clamp(5rem, 12vw, 8rem);
}

.contact-inner {
  max-width: var(--max);
  margin: 0 auto;
  text-align: center;
}

.contact-title {
  font-family: var(--serif);
  font-size: clamp(1.85rem, 5vw, 3rem);
  font-weight: 400;
  line-height: 1.25;
  letter-spacing: 0.01em;
  max-width: 22ch;
  margin: 0 auto 1.25rem;
}

.contact-lead {
  color: var(--text-muted);
  margin-bottom: 3rem;
  font-size: 1rem;
}

.contact-links {
  display: grid;
  gap: 0.75rem;
  max-width: 28rem;
  margin: 0 auto;
  text-align: left;
}

.contact-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 1.15rem 1.35rem;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--bg-elevated);
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease), background 0.3s var(--ease);
}
.contact-item:hover,
.contact-item:focus-visible {
  border-color: rgba(196, 165, 116, 0.4);
  background: #1a1914;
  transform: translateY(-2px);
}

.contact-k {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.contact-v {
  font-size: 1rem;
  color: var(--text);
  word-break: break-all;
}

.site-footer {
  padding: 2rem var(--gutter) 2.5rem;
  text-align: center;
  border-top: 1px solid var(--line);
}
.site-footer p {
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--text-faint);
}

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(1.25rem);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

.reveal:nth-child(2) { transition-delay: 0.06s; }
.reveal:nth-child(3) { transition-delay: 0.12s; }
.reveal:nth-child(4) { transition-delay: 0.18s; }
.reveal:nth-child(5) { transition-delay: 0.24s; }
.reveal:nth-child(6) { transition-delay: 0.3s; }

.hero .reveal:nth-child(1) { transition-delay: 0.05s; }
.hero .reveal:nth-child(2) { transition-delay: 0.15s; }
.hero .reveal:nth-child(3) { transition-delay: 0.25s; }
.hero .reveal:nth-child(4) { transition-delay: 0.35s; }
.hero .reveal:nth-child(5) { transition-delay: 0.45s; }
.hero .reveal:nth-child(6) { transition-delay: 0.55s; }

/* Focus */
:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 3px;
}

/* Language toggle */
.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: transparent;
  font: inherit;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  cursor: pointer;
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}
.lang-toggle:hover,
.lang-toggle:focus-visible {
  border-color: rgba(196, 165, 116, 0.45);
  background: var(--accent-soft);
}
.lang-toggle .lang-sep { opacity: 0.4; }
.lang-toggle .lang-opt { transition: color 0.25s var(--ease); }
.lang-toggle .lang-opt.is-active { color: var(--accent); }
html[lang="en"] .role-sep,
html[lang="en"] .role-sub { display: none; }