@font-face {
  font-family: "Space Grotesk";
  font-style: normal;
  font-weight: 500 700;
  font-display: swap;
  src: url("fonts/space-grotesk-latin.woff2") format("woff2");
}
@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 500 700;
  font-display: swap;
  src: url("fonts/jetbrains-mono-latin.woff2") format("woff2");
}

:root {
  --ink: #17211f;
  --muted: #62706d;
  --paper: #f6f5ef;
  --panel: #ffffff;
  --line: #d9ded7;
  --green: #0f766e;
  --red: #b83a36;
  --amber: #b7791f;
  --soft-green: #e7f3ef;
  --soft-red: #f8e9e7;
  --soft-amber: #fbf0d4;
  --shadow: 0 18px 55px rgba(23, 33, 31, 0.08);
  --head: "Space Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans SC", "PingFang SC", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(90deg, rgba(15, 118, 110, 0.06) 1px, transparent 1px),
    linear-gradient(0deg, rgba(184, 58, 54, 0.045) 1px, transparent 1px),
    var(--paper);
  background-size: 36px 36px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
}

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

:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 2px;
  border-radius: 4px;
}

.shell {
  width: min(1180px, calc(100% - 32px));
  margin: 28px auto;
  display: grid;
  grid-template-columns: 330px minmax(0, 1fr);
  gap: 18px;
}

.sidebar {
  position: sticky;
  top: 28px;
  align-self: start;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.portrait-wrap {
  padding: 24px 24px 18px;
  background: linear-gradient(135deg, #0f766e 0%, #2c8b80 55%, #e7f3ef 100%);
}

.portrait {
  display: block;
  width: 124px;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: center;
  border-radius: 8px;
  border: 4px solid rgba(255, 255, 255, 0.88);
  box-shadow: 0 16px 30px rgba(0, 0, 0, 0.18);
}

.identity {
  padding: 22px 24px 24px;
  border-bottom: 1px solid var(--line);
}

.identity h1 {
  margin: 0;
  font-size: 2.2rem;
  line-height: 1.1;
  letter-spacing: 0;
}

.identity .role {
  margin: 10px 0 0;
  color: var(--green);
  font-size: 1rem;
  font-weight: 700;
}

.identity .pitch {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.contact, .side-section {
  padding: 20px 24px;
  border-bottom: 1px solid var(--line);
}

.side-section:last-child {
  border-bottom: 0;
}

.side-title {
  margin: 0 0 12px;
  font-size: 0.78rem;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.contact a, .contact span {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 30px;
  color: var(--ink);
  font-size: 0.92rem;
  word-break: break-word;
  transition: color 0.15s;
}

.contact a:hover {
  color: var(--green);
}

.contact a + a, .contact span + a {
  margin-top: 8px;
}

.contact-icon {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-icon svg {
  width: 18px;
  height: 18px;
  fill: var(--green);
  color: var(--green);
  transition: fill 0.15s, color 0.15s;
}

.contact a:hover .contact-icon svg {
  fill: var(--ink);
  color: var(--ink);
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fffdfa;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  white-space: nowrap;
  transition: background 0.15s, border-color 0.15s;
}

.chip:hover {
  background: var(--soft-green);
  border-color: var(--green);
}

.main {
  display: grid;
  gap: 18px;
}

.hero, .section {
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 32px;
}

.traj-svg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 160px;
  opacity: 0.4;
  pointer-events: none;
  z-index: 0;
}

.traj {
  fill: none;
  stroke: var(--green);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  animation: draw 4s linear 0.25s forwards;
}

.traj-effector { filter: drop-shadow(0 0 5px var(--amber)); }
.traj-wp { fill: var(--green); opacity: 0; animation: wpPulse 3.6s ease-in-out infinite; }
.hero > *:not(.traj-svg) { position: relative; z-index: 1; }

.eyebrow {
  margin: 0 0 10px;
  color: var(--red);
  font-family: var(--mono);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h2 {
  max-width: 820px;
  margin: 0;
  font-family: var(--head);
  font-weight: 700;
  font-size: clamp(2rem, 2.4vw + 1rem, 3.2rem);
  line-height: 1.12;
  letter-spacing: -0.01em;
  text-wrap: balance;
  /* 中文标题只在空格和标点处断行，避免把"每一代"拆到两行 */
  word-break: keep-all;
}

.hero .lead {
  max-width: 760px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1.02rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 9px 14px;
  border-radius: 8px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: white;
  font-weight: 700;
  font-size: 0.92rem;
  font-family: inherit;
  transition: transform 0.15s, box-shadow 0.15s, opacity 0.15s;
}

.button:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.button:active {
  transform: translateY(0);
  opacity: 0.85;
}

.button.secondary {
  background: white;
  color: var(--ink);
  border-color: var(--line);
}

.button.accent {
  background: var(--soft-green);
  color: var(--green);
  border-color: var(--green);
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 28px;
}

.metric {
  position: relative;
  overflow: hidden;
  min-height: 116px;
  padding: 16px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #fffdfa;
  transition: transform 0.2s, box-shadow 0.25s;
}

.metric::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(220px circle at var(--mx, 50%) var(--my, 50%), rgba(15, 118, 110, 0.16), transparent 62%);
  opacity: 0;
  transition: opacity 0.3s;
}

.metric:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.metric:hover::before { opacity: 1; }

.metric strong {
  display: block;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 1.7rem;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--green);
}

.metric span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.86rem;
}

.section {
  position: relative;
  padding: 26px 28px;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.section h2 {
  margin: 0;
  font-family: var(--head);
  font-weight: 600;
  font-size: 1.35rem;
  line-height: 1.2;
}

.section-kicker {
  color: var(--muted);
  font-size: 0.88rem;
  text-align: right;
}

.timeline {
  display: grid;
  gap: 18px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 18px;
}

.time {
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 700;
}

.timeline-card {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fffdfa;
  transition: transform 0.2s, box-shadow 0.2s;
}

.timeline-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.timeline-card h3 {
  margin: 0;
  font-size: 1.08rem;
}

.school-heading {
  display: flex;
  align-items: center;
  gap: 12px;
}

.school-emblem {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  padding: 5px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.06);
}

.school-emblem img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.timeline-card .meta {
  margin-top: 4px;
  color: var(--green);
  font-weight: 700;
  font-size: 0.92rem;
}

.plain-list {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.plain-list li {
  position: relative;
  padding-left: 18px;
  color: var(--muted);
  font-size: 0.93rem;
}

.plain-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--muted);
}

.project-grid {
  display: grid;
  gap: 14px;
}

.project-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(260px, 0.9fr);
  gap: 20px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fffdfa;
  transition: transform 0.2s, box-shadow 0.2s;
}

.project-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

/* 旧版简历 PDF 链接的 Demo 锚点（#demos、#demo-NN）已下线，用空锚点落到对应项目卡或板块 */
.legacy-anchor {
  position: absolute;
  top: 0;
  scroll-margin-top: 18px;
}

.project-shot {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #111816;
}

.project-card h3 {
  margin: 0;
  font-size: 1.08rem;
}

.project-card .desc {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.result-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 14px;
}

.result {
  min-height: 72px;
  padding: 10px 12px;
  border-radius: 8px;
  background: var(--soft-green);
  border: 1px solid #cce3dc;
}

.result strong {
  display: block;
  color: var(--green);
  font-size: 1.12rem;
  line-height: 1.2;
}

.result span {
  display: block;
  margin-top: 4px;
  color: #42645e;
  font-size: 0.8rem;
}

.project-side {
  display: grid;
  align-content: start;
  gap: 12px;
}

.site-controls {
  position: fixed;
  top: 18px;
  right: 18px;
  z-index: 110;
  display: flex;
  gap: 8px;
}

.mobile-id,
.mobile-nav {
  display: none;
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.platform {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 5px;
  padding: 20px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  transition: transform 0.2s, box-shadow 0.2s;
}

.platform:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.09);
}

.platform-icon {
  display: grid;
  place-items: center;
  width: 100%;
  height: 56px;
  margin-bottom: 8px;
  border-radius: 10px;
  background: #ffffff;
  border: 1px solid var(--line);
  padding: 8px 12px;
}

.platform-icon img {
  max-width: 100%;
  max-height: 40px;
  object-fit: contain;
}

.platform-name {
  font-size: 1.05rem;
  line-height: 1.2;
}

.platform-en {
  font-size: 0.76rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.platform-tag {
  margin-top: 4px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--green);
  background: var(--soft-green);
  padding: 3px 11px;
  border-radius: 999px;
}

@media (max-width: 980px) {
  .platform-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .platform-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

.tech-row {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.tech {
  padding: 4px 9px;
  border-radius: 999px;
  background: var(--soft-amber);
  color: #6f4c11;
  font-size: 0.78rem;
  font-weight: 750;
  transition: transform 0.15s, box-shadow 0.15s;
}

.tech:hover {
  transform: translateY(-1px);
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.1);
}

.tech.green {
  background: var(--soft-green);
  color: #16665e;
}

.tech.red {
  background: var(--soft-red);
  color: #8e2e2a;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.capability {
  padding: 18px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #fffdfa;
  transition: transform 0.2s, box-shadow 0.2s;
}

.capability:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.capability h3 {
  margin: 0 0 8px;
  font-size: 1rem;
}

.capability p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

/* 更多项目：沿用能力卡样式，标题行右侧放真机 / 仿真标签 */
.more-item {
  scroll-margin-top: 18px;
}

.more-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}

.more-head h3 {
  margin: 0;
}

.kind {
  flex: none;
  padding: 1px 8px;
  border-radius: 999px;
  background: var(--soft-green);
  color: var(--green);
  font-family: var(--mono);
  font-size: 11px;
  white-space: nowrap;
}

.kind.sim {
  background: var(--soft-amber);
  color: var(--amber);
}

.awards {
  display: grid;
  gap: 10px;
}

.award {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.award:last-child {
  border-bottom: 0;
}

.award-year {
  color: var(--red);
  font-weight: 800;
  font-size: 0.9rem;
}

.award strong {
  display: block;
  margin-bottom: 3px;
  font-size: 0.96rem;
}

.award span {
  color: var(--muted);
  font-size: 0.9rem;
}

.footer {
  color: var(--muted);
  font-size: 0.84rem;
  text-align: center;
  padding: 12px 0 24px;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes wpPulse { 0%, 100% { opacity: 0.15; } 50% { opacity: 0.55; } }

.sidebar { animation: fadeUp 0.5s ease both; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto !important; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .traj { stroke-dashoffset: 0; }
  .traj-effector { display: none; }
}

@media (max-width: 980px) {
  .shell {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }

  .site-controls {
    position: static;
    align-self: stretch;
    justify-content: flex-end;
  }

  .sidebar {
    display: none;
  }

  .mobile-id {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
  }

  .mobile-id img {
    width: 48px;
    height: 48px;
    flex: 0 0 48px;
    border-radius: 8px;
    object-fit: cover;
    object-position: center 18%;
  }

  .mobile-id-text { min-width: 0; }
  .mobile-id-text h1 {
    margin: 0;
    font-size: 1.1rem;
    line-height: 1.2;
    overflow-wrap: anywhere;
  }
  .mobile-id-text span {
    display: block;
    margin-top: 3px;
    color: var(--green);
    font-size: 0.85rem;
    font-weight: 600;
    overflow-wrap: anywhere;
  }

  .mobile-nav {
    display: block;
    overflow: hidden;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
  }
  .mobile-nav > summary {
    min-height: 44px;
    padding: 10px 16px;
    cursor: pointer;
    color: var(--ink);
    font-weight: 750;
    list-style-position: inside;
  }
  .mobile-nav > summary::marker { color: var(--green); }
  .mobile-nav[open] > summary { border-bottom: 1px solid var(--line); }
  .mobile-nav-body {
    display: grid;
    gap: 12px;
    padding: 10px 16px 14px;
  }
  .mobile-nav-links {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 4px 12px;
  }
  .mobile-nav-links a {
    display: flex;
    align-items: center;
    min-width: 0;
    min-height: 40px;
    color: var(--muted);
    font-size: 0.9rem;
    overflow-wrap: anywhere;
  }
  .mobile-profile-links {
    display: flex;
    flex-wrap: wrap;
    gap: 4px 16px;
    padding-top: 10px;
    border-top: 1px solid var(--line);
  }
  .mobile-profile-links a {
    display: inline-flex;
    align-items: center;
    min-height: 36px;
    color: var(--green);
    font-size: 0.86rem;
    font-weight: 700;
    overflow-wrap: anywhere;
  }

}

@media (max-width: 760px) {
  .shell {
    width: min(100% - 20px, 1180px);
    margin: 10px auto;
  }

  .hero, .section {
    padding: 22px 18px;
  }

  .contact,
  .capability-grid,
  .project-card,
  .timeline-item {
    grid-template-columns: 1fr;
  }

  .section-head {
    display: block;
  }

  .section-kicker {
    margin-top: 6px;
    text-align: left;
  }

  .result-strip {
    grid-template-columns: 1fr;
  }

  /* 手机上指标卡排成 2×2，首屏少占一半高度 */
  .metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .metric {
    min-height: 0;
    padding: 12px;
  }

  .metric strong {
    font-size: 1.35rem;
  }
}

@media (max-width: 480px) {
  .contact,
  .mobile-nav-links,
  .mobile-profile-links {
    grid-template-columns: 1fr !important;
  }
  .mobile-profile-links {
    display: grid;
    gap: 2px;
  }
}

html.theme-dark {
  --ink: #e2e8f0;
  --muted: #94a3b8;
  --paper: #0f172a;
  --panel: #1e293b;
  --line: #334155;
  --green: #5eead4;
  --red: #fca5a5;
  --amber: #fcd34d;
  --soft-green: #134e4a;
  --soft-red: #451a1a;
  --soft-amber: #422006;
  --shadow: 0 18px 55px rgba(0, 0, 0, 0.3);
}

html.theme-dark body {
  background:
    linear-gradient(90deg, rgba(94, 234, 212, 0.04) 1px, transparent 1px),
    linear-gradient(0deg, rgba(252, 165, 165, 0.03) 1px, transparent 1px),
    var(--paper);
  background-size: 36px 36px;
}

html.theme-dark .hero, html.theme-dark .section { background: rgba(30, 41, 59, 0.94); }
html.theme-dark .metric, html.theme-dark .timeline-card, html.theme-dark .project-card, html.theme-dark .capability, html.theme-dark .chip, html.theme-dark .platform { background: #1a2433; }
html.theme-dark .platform-tag { background: rgba(94, 234, 212, 0.12); color: #5eead4; }
html.theme-dark .platform-icon { background: #ffffff; border-color: rgba(255, 255, 255, 0.55); }
html.theme-dark .result { background: var(--soft-green); border-color: #1a4a44; }
html.theme-dark .result strong { color: var(--green); }
html.theme-dark .result span { color: #cbd5e1; }
html.theme-dark .tech { background: var(--soft-amber); color: #fcd34d; }
html.theme-dark .tech.green { background: var(--soft-green); color: #5eead4; }
html.theme-dark .tech.red { background: var(--soft-red); color: #fca5a5; }

html.theme-dark .school-emblem { background: #f8fafc; border-color: #334155; }

html.theme-dark .portrait-wrap { background: linear-gradient(135deg, #0f2b27 0%, #2a2520 100%); }
html.theme-dark .button { background: #e2e8f0; color: #0f172a; border-color: #e2e8f0; }
html.theme-dark .button.secondary { background: #1e293b; color: #e2e8f0; border-color: #334155; }
html.theme-dark .button.accent { background: #134e4a; color: #5eead4; border-color: #5eead4; }
html.theme-dark .timeline-card:hover, html.theme-dark .project-card:hover, html.theme-dark .capability:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}
html.theme-dark .chip:hover { background: var(--soft-green); }
html.theme-dark .kind { background: rgba(94, 234, 212, 0.14); color: #5eead4; }
html.theme-dark .kind.sim { background: var(--soft-amber); color: #fcd34d; }

.skip-link {
  position: absolute;
  left: 16px;
  top: -56px;
  z-index: 200;
  padding: 9px 16px;
  border-radius: 8px;
  background: var(--green);
  color: #fff;
  font-weight: 700;
  box-shadow: var(--shadow);
  transition: top 0.18s;
}

.skip-link:focus {
  top: 16px;
}

html.theme-dark .skip-link:focus {
  color: #0f172a;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  z-index: 120;
  background: var(--green);
  transition: width 0.1s linear;
}

.control-btn {
  width: 44px;
  height: 44px;
  flex: 0 0 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
  font-size: 1.15rem;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.12);
  transition: transform 0.15s, opacity 0.2s, visibility 0.2s;
}

.control-btn:hover {
  transform: translateY(-2px);
}

.lang-toggle {
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.to-top {
  position: fixed;
  z-index: 110;
  right: 18px;
  bottom: 22px;
  opacity: 0;
  visibility: hidden;
}

.to-top.show {
  opacity: 1;
  visibility: visible;
}

.nav-links {
  display: grid;
  gap: 4px;
}

.nav-links a {
  padding: 5px 0 5px 12px;
  border-left: 2px solid transparent;
  color: var(--muted);
  font-size: 0.9rem;
  transition: color 0.15s, border-color 0.15s;
}

.nav-links a:hover {
  color: var(--green);
  border-left-color: var(--green);
}

.hero, .section {
  scroll-margin-top: 18px;
}

@media print {
  .skip-link, .scroll-progress, .site-controls, .to-top { display: none !important; }

  body {
    background: white;
    color: #000;
  }

  .shell {
    width: 100%;
    margin: 0;
    grid-template-columns: 285px minmax(0, 1fr);
  }

  .sidebar, .hero, .section {
    box-shadow: none;
  }

  .hero-actions {
    display: none;
  }

  .project-card, .timeline-card, .capability {
    break-inside: avoid;
  }

  a[href]::after { content: " (" attr(href) ")"; font-size: 0.75em; color: #666; }
  a[href^="mailto"]::after { content: none; }
}