/* MUYI · 个人主页 —— 深色终端 × 编辑排版。设计约束：单强调色、发丝线分隔、无渐变块、无 emoji。 */

:root {
  --bg: #0b0f14;
  --bg-alt: #0e141b;
  --panel: #11161d;
  --ink: #d8dfe8;
  --ink-dim: #8b97a8;
  --ink-faint: #5b6674;
  --accent: #3ddc97;
  --accent-ink: #0b0f14;
  --hairline: rgba(216, 223, 232, 0.09);
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Noto Sans SC", "Segoe UI", "Microsoft YaHei", sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.7;
  font-size: 16px;
  /* 极淡点阵：科技感的克制表达 */
  background-image: radial-gradient(rgba(216, 223, 232, 0.045) 1px, transparent 1px);
  background-size: 28px 28px;
  -webkit-font-smoothing: antialiased;
}

.mono { font-family: var(--mono); font-size: 0.82rem; letter-spacing: 0.02em; }
.dim { color: var(--ink-dim); }

a { color: var(--ink); text-decoration: none; }
a:hover { color: var(--accent); }

.wrap { max-width: 1060px; margin: 0 auto; padding: 0 28px; }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(11, 15, 20, 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--hairline);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand { font-family: var(--mono); font-weight: 700; font-size: 1rem; letter-spacing: 0.08em; }
.brand-dot { color: var(--accent); animation: blink 1.2s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.nav { display: flex; gap: 26px; font-size: 0.9rem; }
.nav a { color: var(--ink-dim); }
.nav a:hover { color: var(--accent); }
.nav-github { color: var(--accent); }

/* ---------- hero ---------- */
.hero { padding: 100px 0 80px; border-bottom: 1px solid var(--hairline); }
.hero-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 48px; align-items: center; }
.hero-main { min-width: 0; }
.hero-kicker { color: var(--accent); margin-bottom: 22px; }
.hero-title {
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.01em;
  margin-bottom: 26px;
}
.hero-title em { font-style: normal; color: var(--accent); }
.hero-sub { margin-bottom: 36px; color: var(--ink-dim); }
.hero-sub .mono { font-size: 1rem; color: var(--ink); }
.caret {
  display: inline-block; width: 9px; height: 1.1em;
  background: var(--accent); margin-left: 4px; vertical-align: text-bottom;
  animation: blink 1s steps(1) infinite;
}
.hero-links { display: flex; gap: 14px; margin-bottom: 58px; }
.btn {
  display: inline-block; padding: 11px 26px;
  border: 1px solid var(--hairline); border-radius: 4px;
  font-size: 0.92rem; transition: border-color .18s, background .18s;
}
.btn:hover { border-color: var(--accent); background: rgba(61, 220, 151, 0.06); }
.btn-primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); font-weight: 600; }
.btn-primary:hover { background: #4ce8a5; color: var(--accent-ink); }

.stats { display: flex; gap: 56px; flex-wrap: wrap; }
.stats div { border-left: 2px solid var(--accent); padding-left: 14px; }
.stats dt { font-size: 1.7rem; font-weight: 700; color: var(--ink); line-height: 1.2; }
.stats dd { color: var(--ink-dim); font-family: var(--sans); font-size: 0.82rem; }

/* hero 伪终端装饰 */
.hero-term {
  border: 1px solid var(--hairline); border-radius: 8px;
  background: rgba(17, 22, 29, 0.92);
  overflow: hidden; max-width: 380px; justify-self: end;
  box-shadow: 0 0 0 1px rgba(61, 220, 151, 0.05), 0 18px 48px rgba(0, 0, 0, 0.42);
}
.term-bar {
  display: flex; align-items: center; gap: 6px;
  padding: 9px 12px; border-bottom: 1px solid var(--hairline);
  color: var(--ink-faint);
}
.term-bar i { width: 10px; height: 10px; border-radius: 50%; background: #232b36; }
.term-bar span { margin-left: 8px; font-size: 0.72rem; }
.hero-term pre {
  padding: 16px 18px; font-size: 0.78rem; line-height: 1.85;
  color: var(--ink-dim); white-space: pre-wrap;
}
.t-p { color: var(--accent); }
.t-ok { color: var(--ink); }
.t-dim { color: var(--ink-faint); }
.hero-term .caret { height: 0.95em; }

/* ---------- sections ---------- */
.section { padding: 84px 0; border-bottom: 1px solid var(--hairline); }
.section-alt { background: var(--bg-alt); }
.section-kicker { color: var(--accent); margin-bottom: 10px; }
.section-title { font-size: clamp(1.5rem, 3.4vw, 2.1rem); font-weight: 700; margin-bottom: 40px; letter-spacing: -0.01em; }
.title-note { font-size: 0.85rem; font-weight: 400; color: var(--ink-dim); margin-left: 14px; }

/* cards：发丝边框面板，不堆阴影 */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 18px; }
.card {
  border: 1px solid var(--hairline); border-radius: 6px;
  background: var(--panel); padding: 26px;
  display: flex; flex-direction: column; gap: 14px;
  transition: border-color .18s, transform .18s;
}
.card:hover { border-color: rgba(61, 220, 151, 0.45); transform: translateY(-3px); }
.card-tag {
  display: inline-block; color: var(--accent);
  border: 1px solid rgba(61, 220, 151, 0.4); border-radius: 3px;
  padding: 1px 8px; margin-bottom: 10px; width: fit-content;
}
.card h3 { font-size: 1.05rem; line-height: 1.45; }
.card p { color: var(--ink-dim); font-size: 0.92rem; }
.card-list { list-style: none; flex: 1; }
.card-list li { padding: 5px 0 5px 16px; position: relative; color: var(--ink-dim); font-size: 0.8rem; }
.card-list li::before { content: "›"; position: absolute; left: 0; color: var(--accent); }
.card footer { padding-top: 12px; border-top: 1px solid var(--hairline); }
.card footer a { color: var(--accent); }

/* skill table */
.skill-table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.skill-table th {
  text-align: left; font-family: var(--mono); font-weight: 500; font-size: 0.78rem;
  color: var(--ink-faint); text-transform: uppercase; letter-spacing: 0.08em;
  padding: 10px 14px; border-bottom: 1px solid var(--hairline);
}
.skill-table td { padding: 14px; border-bottom: 1px solid var(--hairline); vertical-align: top; }
.skill-table td:first-child { font-weight: 600; white-space: nowrap; }
.skill-table td:nth-child(2) { color: var(--ink-dim); }
.skill-table td.mono { font-size: 0.78rem; color: var(--ink-faint); white-space: nowrap; }
.skill-table td.mono a { color: var(--accent); }
.skill-table tr:hover td { background: rgba(61, 220, 151, 0.03); }

/* notes 列表行 */
.note-list { display: flex; flex-direction: column; }
.note-item {
  display: flex; gap: 22px; align-items: baseline;
  padding: 22px 14px; border-bottom: 1px solid var(--hairline);
  transition: background .18s;
}
.note-item:first-child { border-top: 1px solid var(--hairline); }
.note-item:hover { background: rgba(61, 220, 151, 0.04); }
.note-no { color: var(--accent); }
.note-body { flex: 1; display: flex; flex-direction: column; gap: 4px; }
.note-body strong { font-size: 1rem; }
.note-body .dim { font-size: 0.85rem; }
.note-meta { color: var(--ink-faint); }

/* timeline */
.timeline { list-style: none; border-left: 1px solid var(--hairline); margin-left: 6px; }
.timeline li { position: relative; padding: 0 0 30px 30px; }
.timeline li::before {
  content: ""; position: absolute; left: -4px; top: 7px;
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--bg); border: 1px solid var(--accent);
}
.timeline .tl-year { color: var(--accent); display: block; margin-bottom: 4px; }
.timeline .dim { display: block; font-size: 0.88rem; }

/* about */
.about-grid { display: grid; grid-template-columns: 1fr auto; gap: 48px; align-items: center; }
.about-grid p { color: var(--ink-dim); margin-bottom: 16px; }
.about-links { display: flex; flex-direction: column; gap: 8px; }
.about-links a { color: var(--accent); }
.about-avatar {
  width: 168px; height: 168px; border-radius: 8px;
  border: 1px solid var(--hairline); object-fit: cover;
  filter: grayscale(35%) contrast(1.05);
}

/* footer */
.site-footer { padding: 34px 0; }
.site-footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; color: var(--ink-faint); font-size: 0.78rem; }

/* reveal 动效（尊重系统偏好） */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .55s ease, transform .55s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .brand-dot, .caret { animation: none; }
  html { scroll-behavior: auto; }
}

/* 响应式 */
@media (max-width: 880px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-term { display: none; }
}
@media (max-width: 720px) {
  .nav { gap: 16px; font-size: 0.85rem; }
  .nav a:not(.nav-github) { display: none; }
  .stats { gap: 28px; }
  .about-grid { grid-template-columns: 1fr; }
  .about-avatar { width: 120px; height: 120px; }
  .note-item { gap: 12px; }
  .note-meta { display: none; }
}