:root {
  --black: #0a0a0a;
  --white: #fafafa;
  --gray-100: #f5f5f5;
  --gray-200: #e8e8e8;
  --gray-300: #dedede;
  --gray-400: #999;
  --gray-600: #666;
  --gray-800: #333;
  --radius: 16px;
  --shadow: 0 18px 60px rgba(0, 0, 0, 0.06);
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    "Noto Sans CJK SC", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--sans);
  background: var(--white);
  color: var(--black);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection {
  background: var(--black);
  color: var(--white);
}

a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid var(--gray-200);
}

a:hover {
  border-bottom-color: var(--black);
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

.mono {
  font-family: var(--mono);
}

.muted {
  color: var(--gray-600);
}

.faint {
  color: var(--gray-400);
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 250, 250, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
}

.header-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.logo {
  font-size: 11px;
  letter-spacing: 4px;
  text-transform: uppercase;
  font-weight: 650;
  color: var(--gray-600);
  white-space: nowrap;
}

.nav {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav a {
  border-bottom: 1px solid transparent;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gray-600);
  padding: 6px 0;
}

.nav a:hover {
  color: var(--black);
  border-bottom-color: var(--gray-300);
}

.badge {
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 6px 12px;
  border: 1px solid var(--gray-200);
  color: var(--gray-600);
  white-space: nowrap;
}

/* Hero */
.hero {
  max-width: 960px;
  margin: 0 auto;
  padding: 82px 24px 46px;
  text-align: center;
}

.hero-label {
  font-size: 11px;
  letter-spacing: 6px;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(30px, 6vw, 54px);
  font-weight: 320;
  letter-spacing: 2px;
  line-height: 1.18;
  margin-bottom: 14px;
}

.hero h1 strong {
  font-weight: 720;
}

.hero-sub {
  font-size: 13px;
  color: var(--gray-600);
  letter-spacing: 0.9px;
}

.hero-sub span {
  margin: 0 8px;
  color: var(--gray-400);
}

/* Card */
.card {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  background: rgba(250, 250, 250, 0.65);
  padding: 34px;
  box-shadow: var(--shadow);
}

.cardGrid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 28px;
}

.card h3 {
  font-size: 10px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 12px;
  font-weight: 650;
}

.card p {
  font-size: 14px;
  color: var(--gray-800);
  line-height: 1.95;
}

.traits {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.trait {
  font-size: 12px;
  padding: 6px 12px;
  background: var(--black);
  color: var(--white);
  letter-spacing: 0.8px;
  border-radius: 999px;
}

.micro {
  margin-top: 14px;
  font-size: 12px;
  color: var(--gray-600);
  line-height: 1.85;
}

/* Controls */
.panel {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px 26px;
}

.panelHead {
  display: grid;
  gap: 10px;
  padding: 0 0 22px;
  border-bottom: 1px solid var(--gray-200);
  margin-bottom: 20px;
}

.panelTop {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.panelTop h2 {
  font-size: 11px;
  letter-spacing: 6px;
  text-transform: uppercase;
  color: var(--gray-400);
  font-weight: 650;
}

.counts {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--gray-600);
}

.controls {
  display: grid;
  gap: 12px;
}

.row {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.input {
  flex: 1;
  min-width: 240px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--gray-200);
  border-radius: 999px;
  background: var(--white);
}

.input label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--gray-600);
}

.input input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  font-size: 14px;
  color: var(--black);
}

.btn {
  appearance: none;
  border: 1px solid var(--gray-200);
  background: var(--white);
  color: var(--black);
  padding: 10px 12px;
  border-radius: 999px;
  font-size: 12px;
  cursor: pointer;
  transition: background 120ms ease, color 120ms ease, border-color 120ms ease, transform 120ms ease;
}

.btn:hover {
  border-color: var(--black);
  transform: translateY(-1px);
}

.btn.primary {
  border-color: var(--black);
}

.btn.primary:hover {
  background: var(--black);
  color: var(--white);
}

.btn.ghost {
  border-color: transparent;
}

.btn.ghost:hover {
  border-color: var(--gray-300);
}

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

.chip {
  font-size: 12px;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid var(--gray-200);
  background: var(--white);
  color: var(--gray-800);
  cursor: pointer;
  user-select: none;
  transition: background 120ms ease, color 120ms ease, border-color 120ms ease;
}

.chip:hover {
  border-color: var(--black);
}

.chip[data-active="true"] {
  background: var(--black);
  color: var(--white);
  border-color: var(--black);
}

/* Sections */
.section {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px 18px;
}

.sectionHead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0 12px;
}

.sectionHead h3 {
  font-size: 10px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--gray-400);
  font-weight: 650;
}

.sectionHead .meta {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--gray-600);
}

.skills {
  display: grid;
  gap: 12px;
}

.skill {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  background: var(--white);
  padding: 16px 16px 14px;
  display: grid;
  gap: 10px;
  transition: border-color 120ms ease, transform 120ms ease;
}

.skill:hover {
  border-color: var(--black);
  transform: translateY(-1px);
}

.skillTop {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.skillName {
  display: grid;
  gap: 2px;
}

.skillName .id {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--gray-600);
}

.skillName .title {
  font-size: 15px;
  font-weight: 750;
  letter-spacing: 0.2px;
}

.skillDesc {
  font-size: 13px;
  color: var(--gray-800);
  line-height: 1.85;
}

.skillActions {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
}

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

.tagpill {
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--gray-200);
  color: var(--gray-800);
  cursor: pointer;
  user-select: none;
}

.tagpill:hover {
  border-color: var(--black);
}

.empty {
  border: 1px dashed var(--gray-200);
  border-radius: var(--radius);
  padding: 18px;
  color: var(--gray-600);
  font-size: 13px;
  line-height: 1.9;
  background: rgba(250, 250, 250, 0.7);
}

/* Detail page */
.crumbs {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--gray-600);
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.crumbs a {
  border-bottom: 1px solid var(--gray-200);
}

.detail {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px 86px;
}

.detailGrid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 18px;
  margin-top: 16px;
}

.box {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 18px;
  background: var(--white);
}

.boxTitle {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 10px;
}

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

.li {
  font-size: 14px;
  color: var(--gray-800);
  line-height: 1.9;
}

.code {
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  background: var(--gray-100);
  padding: 14px;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: break-word;
}

/* Footer */
footer {
  border-top: 1px solid var(--gray-200);
  padding: 34px 24px;
  text-align: center;
}

.footer-inner {
  max-width: 960px;
  margin: 0 auto;
}

.footer-note {
  font-size: 12px;
  color: var(--gray-600);
  line-height: 1.9;
  max-width: 680px;
  margin: 0 auto 16px;
}

.footer-meta {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--gray-400);
}

/* Toast */
.toast {
  position: fixed;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  border: 1px solid rgba(10, 10, 10, 0.18);
  background: rgba(10, 10, 10, 0.92);
  color: var(--white);
  padding: 10px 12px;
  border-radius: 999px;
  font-size: 12px;
  line-height: 1.3;
  letter-spacing: 0.02em;
  max-width: min(720px, calc(100vw - 28px));
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms ease, transform 180ms ease;
}

.toast[data-show="true"] {
  opacity: 1;
  transform: translateX(-50%) translateY(-2px);
}

/* Responsive */
@media (max-width: 720px) {
  .hero {
    padding: 62px 24px 40px;
  }

  .card {
    padding: 26px 20px;
    border-radius: 18px;
  }

  .cardGrid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .detailGrid {
    grid-template-columns: 1fr;
  }
}

/* Print */
@media print {
  .header {
    position: static;
    background: transparent;
    backdrop-filter: none;
  }

  .btn,
  .chips,
  .input,
  .skillActions,
  .nav {
    display: none !important;
  }

  body {
    font-size: 12pt;
  }

  .skill,
  .box,
  .card {
    break-inside: avoid;
    box-shadow: none;
  }
}