* {
  box-sizing: border-box;
}

:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-muted: #eef2f8;
  --surface-soft: #f8faff;
  --border: #dce3ef;
  --border-strong: #ccd6e5;
  --text: #1f2937;
  --muted: #667085;
  --heading: #132238;
  --accent: #1f4ed8;
  --accent-soft: #e8efff;
  --accent-deep: #143a9b;
  --success: #0f9f6e;
  --success-soft: #e7f8ef;
  --slate-soft: #eef2f7;
  --shadow: 0 18px 48px rgba(15, 23, 42, 0.08);
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  color: var(--text);
  font-family: "Manrope", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(31, 78, 216, 0.08), transparent 28%),
    linear-gradient(180deg, #f8faff 0%, #f3f6fb 100%);
}

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--accent);
}

.app-shell,
.app-frame {
  min-height: 100vh;
}

.app-frame {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
}

.sidebar {
  position: sticky;
  top: 0;
  min-height: 100vh;
  padding: 28px 20px;
  background: rgba(248, 250, 255, 0.86);
  border-right: 1px solid var(--border);
  backdrop-filter: blur(16px);
}

.workspace {
  min-width: 0;
}

.workspace-scroll {
  padding: 28px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 28px;
  background: rgba(245, 247, 251, 0.92);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(16px);
}

.topbar h1,
.hero-card h2,
.section-head h2,
.reader-head h2,
.panel-head h2,
.brand-block h2,
.metric-card strong,
.boot-card h1 {
  margin: 0;
  color: var(--heading);
  font-family: "Fraunces", serif;
  letter-spacing: -0.03em;
}

.topbar h1 {
  font-size: clamp(2rem, 3vw, 3.2rem);
}

.topbar-meta {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  flex-wrap: wrap;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent-deep);
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

.muted-copy {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.brand-block {
  margin-bottom: 24px;
}

.brand-logo {
  width: 160px;
  margin-bottom: 18px;
}

.brand-block h2 {
  font-size: 1.8rem;
  margin-bottom: 10px;
}

.sidebar-card,
.hero-card,
.metric-card,
.path-item,
.library-card,
.reader-card,
.side-panel,
.admin-list-card,
.editor-card,
.table-card,
.detail-card,
.boot-card,
.empty-state {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.sidebar-card,
.metric-card,
.side-panel,
.empty-state {
  padding: 18px;
}

.progress-card {
  margin-bottom: 18px;
}

.progress-value {
  margin: 8px 0 14px;
  color: var(--heading);
  font-size: 3.2rem;
  font-weight: 800;
  letter-spacing: -0.05em;
}

.progress-bar {
  width: 100%;
  height: 12px;
  margin-bottom: 12px;
  overflow: hidden;
  background: var(--surface-muted);
  border-radius: 999px;
}

.progress-bar span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), #7aa3ff);
}

.progress-meta,
.pill-row,
.reader-meta,
.library-card-bottom,
.path-copy-bottom,
.editor-actions,
.button-stack {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.progress-meta {
  color: var(--muted);
  font-size: 0.9rem;
}

.nav-list {
  display: grid;
  gap: 10px;
  margin-bottom: 18px;
}

.nav-button,
.filter-chip,
.pill,
.status-pill,
.meta-chip,
.primary-button,
.secondary-button,
.ghost-button,
.mini-link,
.admin-item,
.people-row {
  border-radius: 999px;
  border: 1px solid transparent;
}

.nav-button,
.filter-chip,
.mini-link {
  width: 100%;
  padding: 14px 16px;
  color: var(--text);
  text-align: left;
  background: var(--surface);
  border-color: var(--border);
}

.nav-button.is-active,
.filter-chip.is-active,
.mini-link.is-current {
  color: var(--accent-deep);
  background: var(--accent-soft);
  border-color: rgba(31, 78, 216, 0.18);
}

.subtle-card {
  background: var(--surface-soft);
}

.pill,
.status-pill,
.meta-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 8px 14px;
  color: var(--muted);
  background: var(--surface-muted);
  border: 1px solid var(--border);
  font-size: 0.9rem;
  font-weight: 600;
}

.status-pill.tone-blue {
  color: var(--accent-deep);
  background: var(--accent-soft);
}

.status-pill.tone-green {
  color: var(--success);
  background: var(--success-soft);
}

.status-pill.tone-slate {
  color: var(--muted);
  background: var(--slate-soft);
}

.flash-banner {
  margin-bottom: 18px;
  padding: 14px 18px;
  color: var(--accent-deep);
  background: var(--accent-soft);
  border: 1px solid rgba(31, 78, 216, 0.16);
  border-radius: 18px;
}

.hero-grid,
.reader-layout,
.admin-layout {
  display: grid;
  gap: 18px;
}

.hero-grid {
  grid-template-columns: minmax(0, 1.3fr) minmax(320px, 0.7fr);
  margin-bottom: 24px;
}

.hero-card,
.reader-card,
.table-card,
.detail-card {
  padding: 24px;
}

.hero-card p,
.metric-card span,
.path-copy p,
.library-card p,
.side-panel p,
.panel-head p,
.available-item span {
  color: var(--muted);
  line-height: 1.6;
}

.hero-actions {
  margin-top: 18px;
}

.metric-stack,
.metric-grid {
  display: grid;
  gap: 18px;
}

.metric-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 18px;
}

.metric-card strong {
  display: block;
  margin-bottom: 8px;
  font-size: 2rem;
}

.section-block {
  margin-bottom: 24px;
}

.section-head,
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.section-head h2,
.panel-head h2 {
  font-size: 1.7rem;
}

.path-list,
.path-editor-list,
.admin-item-list,
.detail-grid,
.mini-list {
  display: grid;
  gap: 14px;
}

.path-item {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  padding: 18px;
}

.path-order,
.path-editor-order {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  color: var(--accent-deep);
  font-weight: 800;
  background: var(--accent-soft);
  border-radius: 18px;
}

.path-copy-top,
.library-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.path-copy h3,
.library-card h3,
.side-panel h3,
.available-item strong,
.detail-row strong {
  margin: 0;
  color: var(--heading);
  font-size: 1.1rem;
}

.toolbar {
  display: grid;
  gap: 16px;
}

.search-field,
.editor-form label,
.editor-markdown,
.editor-toggle {
  display: grid;
  gap: 8px;
}

.search-field span,
.editor-form label span,
.editor-markdown span {
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.search-field input,
.editor-form input,
.editor-markdown textarea {
  width: 100%;
  padding: 14px 16px;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: 16px;
  outline: none;
}

.search-field input:focus,
.editor-form input:focus,
.editor-markdown textarea:focus {
  border-color: rgba(31, 78, 216, 0.5);
  box-shadow: 0 0 0 4px rgba(31, 78, 216, 0.08);
}

.editor-markdown textarea {
  min-height: 320px;
  resize: vertical;
}

.category-row,
.admin-tabs {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.library-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.library-card {
  display: grid;
  gap: 14px;
  padding: 18px;
}

.reader-layout {
  grid-template-columns: minmax(0, 1.45fr) 340px;
}

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

.reader-head {
  margin-bottom: 20px;
}

.reader-side {
  display: grid;
  gap: 18px;
  align-content: start;
}

.button-stack {
  margin-top: 14px;
  flex-direction: column;
}

.button-stack .primary-button,
.button-stack .secondary-button,
.button-stack .ghost-button {
  width: 100%;
}

.markdown-body {
  color: var(--text);
  line-height: 1.75;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4 {
  color: var(--heading);
  font-family: "Fraunces", serif;
  letter-spacing: -0.02em;
}

.markdown-body h1 {
  font-size: 2.2rem;
}

.markdown-body h2 {
  margin-top: 2rem;
  font-size: 1.45rem;
}

.markdown-body h3 {
  margin-top: 1.6rem;
  font-size: 1.15rem;
}

.markdown-body p,
.markdown-body li,
.markdown-body blockquote {
  color: var(--text);
}

.markdown-body ul,
.markdown-body ol {
  padding-left: 1.25rem;
}

.markdown-body blockquote {
  margin: 1.2rem 0;
  padding: 0.2rem 1rem;
  border-left: 3px solid rgba(31, 78, 216, 0.24);
  background: var(--surface-soft);
  border-radius: 0 16px 16px 0;
}

.markdown-body pre {
  overflow: auto;
  padding: 16px;
  color: #dbe7ff;
  background: #12203a;
  border-radius: 18px;
}

.markdown-body code {
  padding: 0.12rem 0.35rem;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.92em;
  background: var(--surface-muted);
  border-radius: 8px;
}

.admin-layout {
  grid-template-columns: 320px minmax(0, 1fr);
}

.admin-list-card,
.editor-card {
  padding: 20px;
}

.admin-item,
.available-item,
.path-editor-item,
.detail-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  padding: 14px 16px;
  text-align: left;
  color: var(--text);
  background: var(--surface-soft);
  border: 1px solid var(--border);
  border-radius: 18px;
}

.admin-item {
  display: grid;
  gap: 4px;
}

.admin-item.is-active {
  border-color: rgba(31, 78, 216, 0.24);
  background: var(--accent-soft);
}

.admin-item span,
.path-editor-copy span,
.detail-row span,
.people-row small {
  color: var(--muted);
}

.path-editor-copy,
.available-item > div,
.detail-row > div {
  display: grid;
  gap: 4px;
}

.path-editor-item {
  justify-content: flex-start;
}

.path-editor-copy {
  min-width: 0;
  flex: 1;
}

.path-editor-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.editor-form {
  display: grid;
  gap: 18px;
}

.editor-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.editor-toggle {
  grid-template-columns: auto 1fr;
  align-items: center;
}

.editor-toggle input {
  width: 18px;
  height: 18px;
}

.preview-card {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.people-table {
  display: grid;
  gap: 10px;
}

.people-row {
  display: grid;
  align-items: center;
  grid-template-columns: 1.2fr 110px 110px 1.2fr 140px;
  gap: 14px;
  width: 100%;
  padding: 14px 16px;
  color: var(--text);
  text-align: left;
  background: var(--surface-soft);
  border: 1px solid var(--border);
}

.people-row-head {
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: transparent;
  border: none;
  padding: 0 16px;
}

.detail-card {
  margin-top: 18px;
}

.primary-button,
.secondary-button,
.ghost-button {
  padding: 12px 18px;
  font-weight: 700;
}

.primary-button {
  color: #ffffff;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  border: 1px solid rgba(20, 58, 155, 0.28);
}

.secondary-button {
  color: var(--accent-deep);
  background: var(--accent-soft);
  border: 1px solid rgba(31, 78, 216, 0.18);
}

.ghost-button {
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--border);
}

.boot-screen {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 24px;
}

.boot-card {
  width: min(640px, 100%);
  padding: 32px;
}

.boot-card h1 {
  margin-bottom: 10px;
  font-size: clamp(2.4rem, 5vw, 4rem);
}

.empty-state {
  padding: 26px;
  color: var(--muted);
  text-align: center;
}

@media (max-width: 1180px) {
  .library-grid,
  .metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .reader-layout,
  .hero-grid,
  .admin-layout {
    grid-template-columns: 1fr;
  }

  .people-row {
    grid-template-columns: 1.2fr 100px 100px 1fr 120px;
  }
}

@media (max-width: 900px) {
  .app-frame {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    min-height: auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .topbar {
    position: static;
    flex-direction: column;
    align-items: flex-start;
  }

  .workspace-scroll {
    padding: 20px;
  }

  .library-grid,
  .metric-grid,
  .editor-grid {
    grid-template-columns: 1fr;
  }

  .path-item {
    grid-template-columns: 44px 1fr;
  }

  .path-item .secondary-button {
    grid-column: 1 / -1;
  }

  .people-row {
    grid-template-columns: 1fr;
  }

  .people-row-head {
    display: none;
  }
}