:root {
  color-scheme: light;
  --bg: #f5efe6;
  --paper: rgba(255, 250, 243, 0.93);
  --card: rgba(255, 252, 247, 0.9);
  --line: rgba(111, 80, 45, 0.14);
  --text: #22170d;
  --muted: #695743;
  --accent: #ba6325;
  --accent-deep: #6e3410;
  --accent-soft: rgba(241, 208, 178, 0.65);
  --olive: #4e5f39;
  --shadow: 0 22px 64px rgba(92, 57, 30, 0.12);
  font-family: "IBM Plex Sans", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(255, 226, 195, 0.84), transparent 28%),
    radial-gradient(circle at 85% 4%, rgba(210, 226, 198, 0.76), transparent 25%),
    linear-gradient(180deg, #fbf5ec 0%, #efe3d3 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(126, 92, 57, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(126, 92, 57, 0.035) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.88), rgba(0, 0, 0, 0.16));
}

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

#app {
  min-height: 100vh;
}

.page-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 26px 0 72px;
}

.site-header {
  position: sticky;
  top: 14px;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 24px;
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 251, 245, 0.78);
  box-shadow: 0 12px 40px rgba(89, 59, 34, 0.08);
  backdrop-filter: blur(16px);
}

.brand {
  display: flex;
  gap: 10px;
  align-items: center;
  font-weight: 700;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  color: white;
  background: linear-gradient(135deg, #c47235, #6e3410);
  font-size: 0.95rem;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--muted);
}

.site-nav a.active {
  color: var(--accent-deep);
  font-weight: 700;
}

.site-nav a:hover {
  color: var(--accent-deep);
}

.hero,
.hero-copy,
.hero-panel,
.metric-card,
.identity-card,
.roadmap-card,
.focus-card,
.pillar-card,
.entry-card,
.library-card,
.site-footer {
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(310px, 0.82fr);
  gap: 24px;
  align-items: stretch;
}

.hero-copy,
.hero-panel,
.metric-card,
.identity-card,
.roadmap-card,
.focus-card,
.pillar-card,
.entry-card,
.library-card,
.site-footer {
  background: var(--paper);
}

.hero-copy {
  position: relative;
  overflow: hidden;
  padding: 38px;
  border-radius: 32px;
}

.hero-copy::after {
  content: "";
  position: absolute;
  right: -56px;
  bottom: -56px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 28% 28%, rgba(255, 255, 255, 0.88), transparent 26%),
    radial-gradient(circle, rgba(186, 99, 37, 0.21), rgba(186, 99, 37, 0.03));
}

.hero h1,
.hero h2,
.section-title h2,
.roadmap-card h3,
.entry-card h3,
.focus-card h3,
.pillar-card h3,
.library-card h3 {
  font-family: "Iowan Old Style", "Times New Roman", "Songti SC", serif;
  letter-spacing: 0.01em;
}

.hero-badge,
.eyebrow {
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.76rem;
  color: var(--accent);
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.8rem, 6vw, 4.8rem);
  line-height: 0.94;
}

.hero h2 {
  margin: 10px 0 0;
  font-size: clamp(1.18rem, 3vw, 2rem);
  color: var(--accent-deep);
}

.hero-intro {
  max-width: 58ch;
  margin: 20px 0 0;
  line-height: 1.85;
  color: var(--muted);
  font-size: 1.03rem;
}

.hero-panel {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 10px;
  padding: 30px;
  border-radius: 28px;
  color: #fff8f2;
  background:
    linear-gradient(180deg, rgba(43, 60, 31, 0.15), rgba(43, 60, 31, 0.34)),
    linear-gradient(145deg, #573116 0%, #ba6325 58%, #e2985e 100%);
}

.hero-panel p,
.hero-panel span,
.hero-panel small {
  margin: 0;
}

.hero-panel strong {
  font-size: clamp(1.8rem, 4vw, 2.2rem);
}

.hero-panel-line {
  width: 72px;
  height: 1px;
  margin: 6px 0 2px;
  background: rgba(255, 248, 242, 0.5);
}

.identity-grid,
.metric-grid,
.focus-grid,
.pillar-grid,
.roadmap-grid,
.library-grid,
.entry-list,
.calendar-grid {
  display: grid;
  gap: 16px;
}

.identity-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 22px;
}

.identity-card,
.metric-card,
.focus-card,
.pillar-card,
.roadmap-card,
.library-card,
.entry-card {
  border-radius: 24px;
  padding: 22px;
}

.identity-card span,
.metric-card span {
  display: block;
  color: var(--muted);
  margin-bottom: 10px;
}

.identity-card strong,
.metric-card strong {
  font-size: 1.34rem;
}

.metric-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 22px;
}

.section-block {
  margin-top: 30px;
}

.section-hero {
  padding: 30px 32px;
  margin-bottom: 24px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--paper);
  box-shadow: var(--shadow);
}

.section-hero h1 {
  margin: 0 0 10px;
  font-family: "Iowan Old Style", "Times New Roman", "Songti SC", serif;
  font-size: clamp(2rem, 4vw, 3rem);
}

.section-hero p:last-child {
  margin: 0;
  line-height: 1.8;
  color: var(--muted);
}

.section-title {
  margin-bottom: 16px;
}

.section-title h2 {
  margin: 0;
  font-size: clamp(1.7rem, 3vw, 2.45rem);
}

.focus-grid,
.pillar-grid,
.roadmap-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.roadmap-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.focus-card p,
.entry-goal,
.site-footer p {
  line-height: 1.8;
  color: var(--muted);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag {
  padding: 8px 12px;
  border: 1px solid rgba(186, 99, 37, 0.18);
  border-radius: 999px;
  color: var(--accent-deep);
  background: var(--accent-soft);
  font-size: 0.92rem;
}

.pillar-card ul,
.library-card ul,
.entry-card ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.8;
}

.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: 22px;
  align-items: start;
}

.portal-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.portal-card {
  display: block;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--paper);
  box-shadow: var(--shadow);
}

.portal-kicker {
  display: inline-block;
  margin-bottom: 10px;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.82rem;
}

.portal-card strong {
  display: block;
  margin-bottom: 10px;
  font-size: 1.35rem;
}

.portal-card p {
  margin: 0;
  line-height: 1.8;
  color: var(--muted);
}

.related-links {
  display: grid;
  gap: 12px;
}

.related-link-card {
  display: block;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 252, 247, 0.86);
}

.related-link-card strong {
  display: block;
  margin-bottom: 6px;
}

.related-link-card span {
  color: var(--muted);
  line-height: 1.7;
}

.calendar-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.7fr) minmax(0, 1.3fr);
  gap: 20px;
  align-items: start;
}

.exercise-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.exercise-card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--paper);
  box-shadow: var(--shadow);
}

.exercise-card h2 {
  margin: 0 0 12px;
  font-family: "Iowan Old Style", "Times New Roman", "Songti SC", serif;
}

.exercise-card ul {
  margin: 0;
  padding-left: 18px;
  line-height: 1.8;
  color: var(--muted);
}

.exercise-card pre {
  margin: 0 0 14px;
  padding: 16px;
  overflow: auto;
  border-radius: 16px;
  background: #2a221b;
  color: #f6eee6;
}

.exercise-card code {
  font-family: "SFMono-Regular", "Menlo", monospace;
}

.full-span {
  grid-column: 1 / -1;
}

.back-link {
  display: inline-block;
  margin-top: 16px;
  color: var(--accent-deep);
  font-weight: 700;
}

.full-width {
  grid-template-columns: 1fr;
}

.calendar-note {
  margin: 0 0 14px;
  line-height: 1.8;
  color: var(--muted);
}

.calendar-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-bottom: 16px;
}

.calendar-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: start;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255, 252, 247, 0.8);
  color: var(--text);
  box-shadow: var(--shadow);
  text-align: left;
}

.calendar-card.active {
  border-color: rgba(186, 99, 37, 0.4);
  background:
    radial-gradient(circle at top right, rgba(241, 208, 178, 0.45), transparent 35%),
    rgba(255, 248, 240, 0.95);
}

.calendar-day {
  color: var(--accent);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.calendar-card strong {
  font-size: 1rem;
}

.calendar-card small {
  color: var(--muted);
}

.entry-card {
  background:
    linear-gradient(180deg, rgba(255, 252, 247, 0.98), rgba(251, 246, 237, 0.94)),
    var(--paper);
}

.entry-card.featured {
  border-color: rgba(186, 99, 37, 0.34);
  background:
    radial-gradient(circle at top right, rgba(241, 208, 178, 0.52), transparent 28%),
    linear-gradient(180deg, rgba(255, 253, 249, 0.98), rgba(255, 247, 238, 0.94));
}

.entry-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: start;
}

.status {
  flex-shrink: 0;
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--olive);
  color: white;
  font-size: 0.88rem;
}

.entry-goal {
  margin: 10px 0 18px;
  color: var(--text);
}

.entry-card section + section {
  margin-top: 16px;
}

.entry-card h4 {
  margin: 0 0 8px;
}

.site-footer {
  margin-top: 30px;
  border-radius: 24px;
  padding: 20px 22px;
}

@media (max-width: 980px) {
  .hero,
  .split-layout,
  .metric-grid,
  .identity-grid,
  .focus-grid,
  .pillar-grid,
  .roadmap-grid,
  .calendar-grid,
  .portal-grid,
  .calendar-layout,
  .exercise-layout {
    grid-template-columns: 1fr;
  }

  .page-shell {
    width: min(100% - 24px, 980px);
    padding-top: 20px;
  }

  .site-header {
    top: 10px;
    padding: 12px 14px;
    border-radius: 24px;
  }

  .site-nav {
    gap: 12px;
    font-size: 0.94rem;
  }
}

@media (max-width: 640px) {
  .site-header {
    align-items: start;
    flex-direction: column;
  }

  .hero-copy,
  .hero-panel,
  .section-hero,
  .identity-card,
  .metric-card,
  .focus-card,
  .pillar-card,
  .roadmap-card,
  .entry-card,
  .library-card,
  .site-footer {
    padding: 18px;
    border-radius: 20px;
  }

  .hero-copy {
    padding-top: 28px;
  }
}