:root {
  color-scheme: dark;
  --bg: #091019;
  --bg-deep: #05080d;
  --bg-soft: #0e1722;
  --panel: rgba(11, 18, 28, 0.9);
  --panel-strong: rgba(14, 22, 34, 0.96);
  --panel-soft: rgba(255, 255, 255, 0.035);
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.18);
  --text: #edf3f7;
  --muted: #95a8b9;
  --accent: #68d7cb;
  --accent-strong: #8ce7dd;
  --accent-soft: rgba(104, 215, 203, 0.14);
  --warm: #f0be7a;
  --warm-strong: #ffd79e;
  --warm-soft: rgba(240, 190, 122, 0.14);
  --danger: #ff8e8e;
  --danger-soft: rgba(255, 142, 142, 0.14);
  --ok: #7fe0a6;
  --ok-soft: rgba(127, 224, 166, 0.14);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --shadow:
    0 28px 90px rgba(0, 0, 0, 0.34),
    0 4px 18px rgba(0, 0, 0, 0.18);
  --site-width: min(1240px, calc(100vw - 36px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: 'Manrope', system-ui, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(104, 215, 203, 0.08), transparent 28%),
    radial-gradient(circle at top right, rgba(240, 190, 122, 0.07), transparent 24%),
    linear-gradient(180deg, var(--bg-deep) 0%, var(--bg) 100%);
  color: var(--text);
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55), transparent 88%);
}

.hidden {
  display: none !important;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  width: var(--site-width);
  margin: 0 auto;
  padding: 18px 0 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  backdrop-filter: blur(18px);
}

.topbar::before {
  content: '';
  position: absolute;
  inset: 6px -14px;
  z-index: -1;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  background: linear-gradient(180deg, rgba(10, 15, 22, 0.94), rgba(8, 12, 18, 0.82));
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.22);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  color: inherit;
  text-decoration: none;
}

.brand-mark {
  width: 48px;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: linear-gradient(135deg, rgba(240, 190, 122, 0.22), rgba(104, 215, 203, 0.16));
  color: #ffffff;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.brand-copy {
  display: grid;
  gap: 3px;
}

.brand-copy strong {
  font-size: 1.02rem;
  letter-spacing: -0.02em;
}

.brand-copy span {
  color: var(--muted);
  font-size: 0.88rem;
}

.topnav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.topnav a,
.topnav button {
  border: 0;
  background: transparent;
  color: var(--muted);
  text-decoration: none;
  font: inherit;
  padding: 10px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: 180ms ease;
}

.topnav a:hover,
.topnav button:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

.site-shell {
  width: var(--site-width);
  margin: 0 auto;
  padding: 20px 0 96px;
}

.page-stack,
.page,
.stack,
.stack-tight,
.list-stack,
.meta-list,
.form-stack {
  display: grid;
}

.page-stack,
.page {
  gap: 22px;
}

.stack {
  gap: 16px;
}

.stack-tight {
  gap: 8px;
}

.section-card,
.panel,
.stage-card,
.hero-panel,
.form-card,
.notice,
.metric,
.book-card,
.list-card,
.empty-card {
  position: relative;
  border-radius: var(--radius-xl);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.02));
  box-shadow: var(--shadow);
}

.section-card,
.panel,
.stage-card,
.hero-panel,
.form-card {
  padding: 28px;
}

.section-card::after,
.panel::after,
.stage-card::after,
.hero-panel::after,
.form-card::after,
.book-card::after,
.list-card::after,
.empty-card::after {
  content: '';
  position: absolute;
  inset: 1px;
  border-radius: inherit;
  pointer-events: none;
  border: 1px solid rgba(255, 255, 255, 0.03);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 18px;
  margin-bottom: 20px;
}

.section-header h1,
.section-header h2,
.section-header h3,
.hero-panel h1,
.hero-panel h2,
.panel h2,
.panel h3,
.stage-card h2,
.stage-card h3,
.form-card h3,
.book-card h3,
.list-card h4,
.empty-card h3 {
  margin: 0;
  line-height: 0.98;
  letter-spacing: -0.045em;
}

.section-header p,
.hero-panel p,
.panel p,
.stage-card p,
.form-card p,
.notice p,
.book-card p,
.list-card p,
.empty-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.eyebrow {
  display: inline-flex;
  width: max-content;
  align-items: center;
  gap: 8px;
  padding: 7px 11px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.78rem;
  margin-bottom: 12px;
}

.hero-grid,
.dashboard-grid,
.machine-grid,
.split-grid,
.two-col,
.detail-layout,
.stack-grid,
.metric-grid,
.book-grid,
.list-grid,
.inline-fields,
.pill-row {
  display: grid;
  gap: 14px;
}

.hero-grid,
.dashboard-grid,
.machine-grid,
.detail-layout,
.two-col {
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.9fr);
}

.stack-grid {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.metric-grid {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.book-grid,
.list-grid {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.inline-fields {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.pill-row {
  grid-template-columns: repeat(auto-fit, minmax(150px, max-content));
}

.metric {
  padding: 20px 22px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
}

.metric strong {
  display: block;
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  margin-bottom: 6px;
}

.metric span {
  color: var(--muted);
}

.pill,
.badge,
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.035);
  color: var(--text);
  font-size: 0.9rem;
}

.badge.ok {
  color: var(--ok);
  background: var(--ok-soft);
}

.badge.warn {
  color: var(--warm-strong);
  background: var(--warm-soft);
}

.badge.locked {
  color: #ffd0d0;
  background: var(--danger-soft);
}

.small-text,
.muted {
  color: var(--muted);
}

.meta-inline {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  color: var(--muted);
  font-size: 0.93rem;
}

.actions,
.split-actions,
.inline-form {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

button,
.button-link,
input,
textarea,
select {
  font: inherit;
}

button,
.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 12px 16px;
  border-radius: 14px;
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.035);
  color: var(--text);
  text-decoration: none;
  cursor: pointer;
  transition: 170ms ease;
}

button.primary,
.button-link.primary {
  background: linear-gradient(135deg, rgba(104, 215, 203, 0.24), rgba(104, 215, 203, 0.08));
}

button.secondary,
.button-link.secondary {
  background: rgba(255, 255, 255, 0.05);
}

button.ghost,
.button-link.ghost {
  background: transparent;
  color: var(--muted);
}

button.warm,
.button-link.warm {
  background: linear-gradient(135deg, rgba(240, 190, 122, 0.24), rgba(240, 190, 122, 0.08));
}

button.danger,
.button-link.danger {
  background: var(--danger-soft);
  color: #ffd9d9;
}

button:hover,
.button-link:hover {
  transform: translateY(-1px);
  border-color: rgba(255, 255, 255, 0.24);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

form {
  display: grid;
  gap: 14px;
}

label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 0.94rem;
}

input,
textarea,
select {
  width: 100%;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  padding: 13px 14px;
}

textarea {
  min-height: 130px;
  resize: vertical;
}

input::placeholder,
textarea::placeholder {
  color: #7f92a3;
}

input:focus,
textarea:focus,
select:focus {
  outline: 2px solid rgba(104, 215, 203, 0.18);
  border-color: rgba(104, 215, 203, 0.42);
}

.notice {
  padding: 18px 20px;
}

.notice.info {
  border-color: rgba(104, 215, 203, 0.22);
  background: rgba(104, 215, 203, 0.1);
}

.notice.warn {
  border-color: rgba(240, 190, 122, 0.24);
  background: rgba(240, 190, 122, 0.1);
}

.notice.error {
  border-color: rgba(255, 142, 142, 0.24);
  background: rgba(255, 142, 142, 0.1);
}

.book-card,
.list-card,
.empty-card {
  padding: 22px;
}

.book-card,
.list-card {
  display: grid;
  gap: 14px;
}

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

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

.list-select button {
  text-align: left;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
}

.list-select button.active {
  background: rgba(104, 215, 203, 0.12);
  border-color: rgba(104, 215, 203, 0.35);
}

.reader {
  margin: 0;
  padding: 22px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  white-space: pre-wrap;
  line-height: 1.76;
  font-size: 1.02rem;
  max-height: 70vh;
  overflow: auto;
}

audio {
  width: 100%;
}

.divider {
  height: 1px;
  background: var(--line);
}

.footer {
  width: var(--site-width);
  margin: 0 auto 30px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 18px;
  color: var(--muted);
}

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

.footer a:hover {
  color: var(--text);
}

@media (max-width: 1024px) {
  .hero-grid,
  .dashboard-grid,
  .machine-grid,
  .detail-layout,
  .two-col {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .site-shell {
    padding-bottom: 84px;
  }

  .topbar {
    gap: 14px;
  }

  .topbar::before {
    inset: 0;
    border-radius: 22px;
  }

  .topnav {
    justify-content: flex-start;
  }

  .section-card,
  .panel,
  .stage-card,
  .hero-panel,
  .form-card,
  .book-card,
  .list-card,
  .empty-card {
    border-radius: 22px;
  }

  .section-card,
  .panel,
  .stage-card,
  .hero-panel,
  .form-card,
  .book-card,
  .list-card,
  .empty-card,
  .notice {
    padding: 18px;
  }
}