/* Justin 的简历站 —— 英文为主、可切中文;深浅两套主题变量 */

:root {
  --bg: #f6f3ed;
  --surface: #ffffff;
  --ink: #1b1d22;
  --muted: #5d636e;
  --line: #e2dcd1;
  --accent: #d9502a;
  --accent-soft: #fbe6dd;
  --good: #137a55;
  --shadow: 0 1px 2px rgba(27, 29, 34, .05), 0 12px 32px rgba(27, 29, 34, .07);
  --radius: 18px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #111419;
    --surface: #191d24;
    --ink: #eef0f3;
    --muted: #a3aab5;
    --line: #2a303a;
    --accent: #ff7a50;
    --accent-soft: #3a2219;
    --good: #3cc493;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 12px 32px rgba(0, 0, 0, .35);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #111419;
  --surface: #191d24;
  --ink: #eef0f3;
  --muted: #a3aab5;
  --line: #2a303a;
  --accent: #ff7a50;
  --accent-soft: #3a2219;
  --good: #3cc493;
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 12px 32px rgba(0, 0, 0, .35);
  color-scheme: dark;
}

/* ---------- 语言:没选中的那种整块藏掉 ---------- */
html[data-lang="en"] .zh,
html[data-lang="zh"] .en { display: none; }

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 5rem; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
html[data-lang="zh"] body { line-height: 1.75; }

h1, h2, h3 { margin: 0; line-height: 1.2; font-weight: 700; letter-spacing: -.01em; }
p { margin: 0; }
a { color: inherit; }
img { display: block; max-width: 100%; height: auto; }

.wrap { width: 100%; max-width: 70rem; margin-inline: auto; padding-inline: 1.5rem; }
.muted { color: var(--muted); }

.eyebrow {
  color: var(--accent);
  font-size: .8125rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
}
html[data-lang="zh"] .eyebrow { letter-spacing: .06em; }

/* ---------- 顶栏 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; gap: 1.5rem; min-height: 3.75rem; }
.brand { font-weight: 700; text-decoration: none; white-space: nowrap; }
.nav-links { display: flex; gap: 1.25rem; margin-left: auto; }
.nav-links a { color: var(--muted); text-decoration: none; font-size: .9375rem; white-space: nowrap; }
.nav-links a:hover { color: var(--ink); }
.nav-tools { display: flex; gap: .5rem; }

.lang-toggle, .theme-toggle {
  font: inherit;
  font-size: .875rem;
  font-weight: 600;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  height: 2.25rem;
  min-width: 2.25rem;
  padding: 0 .75rem;
  cursor: pointer;
}
.lang-toggle:hover, .theme-toggle:hover { border-color: var(--muted); }
.theme-toggle { padding: 0; }
.theme-toggle .icon-moon { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: inline; }

/* ---------- 开头 ---------- */
.hero { padding-top: 5rem; padding-bottom: 4rem; }
.hero h1 {
  margin-top: 1rem;
  max-width: 18em;
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  letter-spacing: -.025em;
}
html[data-lang="zh"] .hero h1 { max-width: none; letter-spacing: 0; line-height: 1.3; }
.hero h1 em { font-style: normal; color: var(--accent); }
.lede { margin-top: 1.5rem; max-width: 40em; font-size: 1.1875rem; color: var(--muted); }

.cta { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2rem; }
.btn {
  display: inline-flex;
  align-items: center;
  min-height: 3rem;
  padding: 0 1.375rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface);
  font-weight: 600;
  text-decoration: none;
  transition: border-color .15s, transform .15s;
}
.btn:hover { border-color: var(--muted); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { border-color: var(--accent); transform: translateY(-1px); }

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  margin: 3.5rem 0 0;
}
.stat {
  padding: 1.25rem 1.25rem 1.375rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.stat dt { font-size: 1.875rem; font-weight: 700; letter-spacing: -.02em; line-height: 1.15; }
.stat dt s { color: var(--muted); font-weight: 600; font-size: .6em; margin-right: .25em; }
.stat dd { margin: .5rem 0 0; color: var(--muted); font-size: .9375rem; line-height: 1.45; }

/* ---------- 分节 ---------- */
.section { padding-top: 4.5rem; padding-bottom: 1rem; }
.section-head { margin-bottom: 2rem; }
.section-head h2 { margin-top: .5rem; font-size: clamp(1.75rem, 3.4vw, 2.5rem); max-width: 22em; }

.tag {
  display: inline-block;
  padding: .25rem .75rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: .8125rem;
  font-weight: 600;
}

/* ---------- 经历 ---------- */
.job {
  display: grid;
  grid-template-columns: minmax(0, 15rem) minmax(0, 1fr);
  gap: 2rem;
  padding: 1.75rem 0;
  border-top: 1px solid var(--line);
}
.job:last-child { border-bottom: 1px solid var(--line); }
.job ul { margin: 0; padding-left: 1.125rem; }
.job li { margin-top: .5rem; }
.job li::marker { color: var(--accent); }
.job-meta h3 { font-size: 1.1875rem; }
.job-meta p { margin-top: .375rem; color: var(--muted); font-size: .9375rem; line-height: 1.5; }
.job-body > p + p { margin-top: .5rem; }
.job-body ul { margin-top: 0; }
.job-body li:first-child { margin-top: 0; }
.clients { margin-bottom: 1rem; font-weight: 600; }

/* ---------- 怎么做事 ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}
.steps li {
  counter-increment: step;
  padding: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.steps li::before {
  content: counter(step, decimal-leading-zero);
  display: block;
  margin-bottom: .75rem;
  color: var(--accent);
  font-weight: 700;
  font-size: .875rem;
}
.steps h3 { font-size: 1.0625rem; }
.steps p { margin-top: .5rem; color: var(--muted); font-size: .9375rem; }

.skills {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.25rem 2rem;
  margin-top: 3rem;
}
.skills h3 { font-size: .9375rem; color: var(--muted); font-weight: 600; }
.skills p { margin-top: .375rem; font-size: .9375rem; }

/* ---------- 联系 ---------- */
.contact {
  margin-top: 5rem;
  padding-top: 4rem;
  padding-bottom: 4rem;
  text-align: center;
  border-top: 1px solid var(--line);
}
.contact h2 { font-size: clamp(1.75rem, 3.6vw, 2.5rem); }
.contact p { margin: 1rem auto 2rem; max-width: 34em; color: var(--muted); }

.site-footer { padding-top: 1.5rem; padding-bottom: 2.5rem; color: var(--muted); font-size: .875rem; }

/* ---------- 窄屏 ---------- */
@media (max-width: 960px) {
  .stats, .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .skills { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 720px) {
  .wrap { padding-inline: 1rem; }
  .nav { gap: .75rem; }
  .nav-links { display: none; }
  .nav-tools { margin-left: auto; }
  .hero { padding-top: 3rem; padding-bottom: 2.5rem; }
  .lede { font-size: 1.0625rem; }
  .stats { gap: .75rem; }
  .stat { padding: 1rem; }
  .stat dt { font-size: 1.5rem; }
  .steps, .skills { grid-template-columns: minmax(0, 1fr); }
  .job { grid-template-columns: minmax(0, 1fr); gap: .75rem; }
}

/* ---------- 打印(⌘P 存 PDF 用) ---------- */
@media print {
  :root, :root[data-theme="dark"] {
    --bg: #fff; --surface: #fff; --ink: #000; --muted: #444; --line: #ccc;
    --accent: #b8401e; --accent-soft: #fff; --good: #0d5c40; --shadow: none;
  }
  body { font-size: 10.5pt; }
  .site-header, .cta, .contact .btn { display: none; }
  .hero { padding: 0 0 1rem; }
  .section { padding-top: 1.25rem; }
  .job, .steps li { break-inside: avoid; }
  .contact { margin-top: 1rem; padding: 1rem 0; }
}

/* ======================================================================
   开头的软件图标排
   ====================================================================== */
.dock {
  display: flex;
  gap: .625rem;
  margin-top: 2.5rem;
  padding: .75rem;
  border-radius: 22px;
  background: color-mix(in srgb, var(--surface) 70%, transparent);
  border: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  row-gap: 1rem;
}
.dock a {
  flex: 0 0 4.75rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .375rem;
  text-decoration: none;
  color: var(--muted);
  font-size: .75rem;
  white-space: nowrap;
}
.dock i {
  display: grid;
  place-items: center;
  width: 3.25rem;
  height: 3.25rem;
  border-radius: 14px;
  background: linear-gradient(160deg, color-mix(in srgb, var(--c) 78%, #fff), var(--c));
  color: #fff;
  font-style: normal;
  font-weight: 700;
  font-size: .875rem;
  box-shadow: 0 6px 16px color-mix(in srgb, var(--c) 35%, transparent), inset 0 1px 0 rgba(255, 255, 255, .35);
  transition: transform .2s cubic-bezier(.3, .7, .2, 1);
}
.dock a:hover i, .dock a:focus-visible i { transform: translateY(-6px) scale(1.12); }
.dock a:hover { color: var(--ink); }

/* ======================================================================
   故事:五章 + 左侧章节导航
   ====================================================================== */
.story { position: relative; padding-top: 4.5rem; }
.story-head { margin-bottom: 1rem; }
.story-sub { margin-top: .75rem; color: var(--muted); max-width: 40em; }

.rail {
  position: fixed;
  left: 1.25rem;
  top: 50%;
  z-index: 5;
  display: none;
  flex-direction: column;
  gap: .25rem;
  transform: translateY(-50%);
}
.rail a {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .25rem .5rem;
  border-radius: 8px;
  color: var(--muted);
  text-decoration: none;
  font-size: .8125rem;
}
.rail b { font-variant-numeric: tabular-nums; }
.rail span { max-width: 0; overflow: hidden; white-space: nowrap; opacity: 0; transition: max-width .3s, opacity .3s; }
.rail:hover span { max-width: 14rem; opacity: 1; }
.rail:hover { background: var(--surface); border-radius: 12px; box-shadow: var(--shadow); padding: .25rem; margin-left: -.25rem; }
.rail a.on { color: var(--accent); background: var(--surface); box-shadow: var(--shadow); }
.rail.show { display: flex; }
@media (max-width: 1360px) { .rail.show { display: none; } }

.chapter { padding-top: 4rem; }
.chapter-head {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  padding-bottom: 1.5rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}
.chapter-no {
  font-size: clamp(2.75rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: .9;
  letter-spacing: -.04em;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--accent);
}
.chapter-head h2 { font-size: clamp(1.5rem, 3vw, 2.125rem); }
.chapter-head p { margin-top: .5rem; color: var(--muted); max-width: 42em; }

.tool {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
  gap: 3rem;
  align-items: center;
  padding: 3rem 0;
}
.tool + .tool { border-top: 1px dashed var(--line); }
.tool.flip { grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); }
.tool.flip .tool-text { order: 2; }
.tool.flip .tool-demo { order: 1; }
.tool-phone { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
.tool-phone.flip { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
.tool-text h3 { margin-top: .625rem; font-size: 1.625rem; }
.tool-p { margin-top: .75rem; color: var(--muted); }
.tool-text ul { margin: 1rem 0 0; padding-left: 1.125rem; }
.tool-text li { margin-top: .375rem; }
.tool-text li::marker { color: var(--accent); }
.tool-demo { min-width: 0; }
.tool-demo .demo { outline: none; }

@media (max-width: 960px) {
  .tool, .tool.flip, .tool-phone, .tool-phone.flip { grid-template-columns: minmax(0, 1fr); gap: 1.5rem; padding: 2.25rem 0; }
  .tool.flip .tool-text, .tool.flip .tool-demo { order: 0; }
}
@media (max-width: 720px) {
  .dock { display: flex; margin-top: 1.75rem; padding: .5rem; gap: .25rem; flex-wrap: nowrap; justify-content: flex-start; overflow-x: auto; scrollbar-width: none; }
  .dock::-webkit-scrollbar { display: none; }
  .dock a { flex: 0 0 4rem; }
  .dock i { width: 2.75rem; height: 2.75rem; border-radius: 12px; font-size: .75rem; }
  .chapter { padding-top: 3rem; }
  .chapter-head { flex-direction: column; gap: .5rem; }
}
@media print {
  .dock, .rail, .tool-demo { display: none !important; }
  .tool, .tool.flip { display: block; padding: .75rem 0; break-inside: avoid; }
}