:root {
  color-scheme: dark;
  --surface-primary: #08090a;
  --surface-secondary: #0f1011;
  --surface-elevated: #191a1b;
  --surface-sunken: #010102;
  --text-primary: #f7f8f8;
  --text-secondary: #d0d6e0;
  --text-tertiary: #8a8f98;
  --border-default: rgba(255, 255, 255, 0.08);
  --border-subtle: rgba(255, 255, 255, 0.05);
  --accent-primary: #7170ff;
  --accent-hover: #828fff;
  --status-success: #27a644;
  --status-warning: #f59e0b;
  --status-error: #ef4444;
  --status-info: #60a5fa;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 10px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100dvh;
  background:
    linear-gradient(120deg, rgba(113, 112, 255, 0.12), transparent 34%),
    radial-gradient(circle at 80% 0%, rgba(96, 165, 250, 0.10), transparent 28%),
    var(--surface-primary);
  color: var(--text-primary);
  font: 430 15px/1.65 Inter, Pretendard, "Segoe UI", "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif;
  letter-spacing: 0;
  word-break: keep-all;
}

a {
  color: inherit;
}

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -80px;
  z-index: 20;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  background: var(--accent-primary);
  color: white;
  transition: top 120ms ease-out;
}

.skip-link:focus {
  top: var(--space-4);
}

.app-shell {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  min-height: 100dvh;
}

.rail {
  position: sticky;
  top: 0;
  align-self: start;
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  min-height: 100dvh;
  padding: var(--space-6);
  border-right: 1px solid var(--border-default);
  background: rgba(8, 9, 10, 0.82);
  backdrop-filter: blur(18px);
}

.brand-block {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--status-warning);
  box-shadow: 0 0 0 6px rgba(245, 158, 11, 0.12);
}

.status-dot.live {
  background: var(--status-success);
  box-shadow: 0 0 0 6px rgba(39, 166, 68, 0.12);
}

.eyebrow {
  margin: 0 0 var(--space-1);
  color: var(--text-tertiary);
  font-size: 12px;
  font-weight: 560;
  line-height: 1.45;
}

.brand-block h1,
.section-heading h2,
.hero-copy h2 {
  margin: 0;
  letter-spacing: 0;
}

.brand-block h1 {
  font-size: 20px;
  font-weight: 650;
  line-height: 1.25;
}

.nav-list {
  display: grid;
  gap: var(--space-2);
}

.nav-list a,
.primary-link {
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: border-color 120ms ease-out, background 120ms ease-out, transform 120ms ease-out;
}

.nav-list a {
  padding: var(--space-2) var(--space-3);
  color: var(--text-secondary);
}

.nav-list a:hover,
.nav-list a:focus-visible {
  border-color: var(--border-default);
  background: rgba(255, 255, 255, 0.04);
  outline: none;
}

.nav-list a:active,
.primary-link:active {
  transform: translateY(1px);
}

.rail-note {
  margin-top: auto;
  padding: var(--space-4);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  background: var(--surface-secondary);
  color: var(--text-tertiary);
}

.rail-note strong {
  display: block;
  color: var(--text-primary);
  font-size: 17px;
}

.content {
  width: min(100%, 1440px);
  margin: 0 auto;
  padding: var(--space-8);
}

.guide-page,
.hero-band,
.section-band {
  border-radius: var(--radius-lg);
}

.guide-page {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  gap: var(--space-8);
  align-items: stretch;
  padding: var(--space-8);
  border: 1px solid var(--border-default);
  background:
    linear-gradient(145deg, rgba(113, 112, 255, 0.16), transparent 42%),
    linear-gradient(180deg, rgba(25, 26, 27, 0.96), rgba(15, 16, 17, 0.86));
}

.guide-copy h2 {
  max-width: 920px;
  margin: 0;
  font-size: clamp(34px, 5vw, 56px);
  font-weight: 680;
  line-height: 1.08;
  letter-spacing: 0;
  text-wrap: balance;
}

.briefing-list {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.guide-status-strip {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
  margin-top: var(--space-5);
  padding: var(--space-3);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  background: rgba(1, 1, 2, 0.34);
}

.guide-status-strip span {
  color: var(--accent-hover);
  font-size: 12px;
  font-weight: 650;
}

.guide-status-strip strong {
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 620;
}

.briefing-item {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: var(--space-4);
  padding: var(--space-4) 0;
  border-top: 1px solid var(--border-subtle);
}

.briefing-item span {
  color: var(--accent-hover);
  font-size: 12px;
  font-weight: 650;
}

.briefing-item p {
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.75;
}

.current-brief {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: var(--space-5);
  border: 1px solid rgba(113, 112, 255, 0.28);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, rgba(113, 112, 255, 0.14), transparent),
    var(--surface-sunken);
}

.current-brief strong {
  display: block;
  margin: var(--space-4) 0 var(--space-2);
  font-size: 36px;
  font-weight: 680;
  line-height: 1.12;
}

.current-brief > p {
  margin: 0;
  color: var(--text-secondary);
}

.reader-path {
  display: grid;
  gap: var(--space-3);
  margin-top: auto;
  padding-top: var(--space-6);
}

.reader-path div {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: var(--space-3);
  align-items: start;
}

.reader-path span {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border: 1px solid var(--border-default);
  border-radius: 999px;
  color: var(--text-primary);
  font-family: "Berkeley Mono", "JetBrains Mono", SFMono-Regular, Consolas, monospace;
  font-size: 12px;
}

.reader-path p {
  margin: 0;
  color: var(--text-secondary);
}

.hero-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
  gap: var(--space-6);
  align-items: stretch;
  padding: var(--space-8);
  border: 1px solid var(--border-default);
  background: linear-gradient(180deg, rgba(25, 26, 27, 0.94), rgba(15, 16, 17, 0.84));
}

.hero-copy,
.guide-copy,
.current-brief,
.verdict-panel,
.metric-card,
.phase-card > *,
.timeline-body,
.evidence-card,
.session-card > *,
.two-column > *,
.source-table-wrap {
  min-width: 0;
}

.hero-copy h2 {
  max-width: 840px;
  font-size: clamp(30px, 4vw, 40px);
  font-weight: 650;
  line-height: 1.15;
}

.lead {
  max-width: 760px;
  margin: var(--space-4) 0 0;
  color: var(--text-secondary);
  font-size: 17px;
  line-height: 1.75;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-5);
}

.meta-row span,
.pill {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 var(--space-3);
  border: 1px solid var(--border-default);
  border-radius: 999px;
  color: var(--text-tertiary);
  font-size: 12px;
  font-family: "Berkeley Mono", "JetBrains Mono", SFMono-Regular, Consolas, monospace;
  max-width: 100%;
  overflow-wrap: anywhere;
  white-space: normal;
}

.verdict-panel {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 220px;
  padding: var(--space-5);
  border: 1px solid rgba(113, 112, 255, 0.28);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, rgba(113, 112, 255, 0.16), transparent),
    var(--surface-sunken);
}

.panel-label {
  color: var(--accent-hover);
  font-size: 12px;
  font-weight: 560;
}

.verdict-panel strong {
  display: block;
  margin: var(--space-4) 0;
  font-size: 30px;
  font-weight: 650;
  line-height: 1.25;
}

.verdict-panel p {
  margin: 0;
  color: var(--text-secondary);
}

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

.metric-card,
.phase-card,
.timeline-item,
.evidence-card,
.session-card,
.watch-item {
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  background: var(--surface-elevated);
}

.metric-card {
  min-height: 132px;
  padding: var(--space-5);
}

.metric-card span {
  color: var(--text-tertiary);
  font-size: 12px;
  font-weight: 560;
}

.metric-card strong {
  display: block;
  margin-top: var(--space-2);
  font-size: 30px;
  font-weight: 650;
}

.metric-card p {
  margin: var(--space-2) 0 0;
  color: var(--text-secondary);
}

.section-band {
  margin-top: var(--space-8);
  padding: var(--space-6);
  overflow: hidden;
  background: rgba(15, 16, 17, 0.74);
}

.section-heading {
  display: grid;
  gap: var(--space-1);
  margin-bottom: var(--space-5);
}

.section-heading h2 {
  font-size: 30px;
  font-weight: 650;
  line-height: 1.25;
}

.section-heading.compact h2 {
  font-size: 22px;
}

.section-intro {
  max-width: 780px;
  margin: var(--space-2) 0 0;
  color: var(--text-secondary);
}

.timeline-list {
  display: grid;
  gap: var(--space-3);
}

.timeline-item {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: var(--space-5);
  padding: var(--space-5);
}

.timeline-date {
  display: grid;
  align-content: start;
  gap: var(--space-2);
  color: var(--text-tertiary);
  font-family: "Berkeley Mono", "JetBrains Mono", SFMono-Regular, Consolas, monospace;
  font-size: 12px;
}

.timeline-date strong {
  width: fit-content;
  max-width: 100%;
  padding: 2px var(--space-2);
  border: 1px solid var(--border-default);
  border-radius: 999px;
  color: var(--accent-hover);
  overflow-wrap: anywhere;
}

.timeline-title-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
  justify-content: space-between;
}

.timeline-title-row h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 620;
  line-height: 1.35;
}

.timeline-body p {
  margin: var(--space-2) 0 0;
  color: var(--text-secondary);
}

.timeline-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.timeline-meta span {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 0 var(--space-2);
  border: 1px solid var(--border-default);
  border-radius: 999px;
  color: var(--text-tertiary);
  font-family: "Berkeley Mono", "JetBrains Mono", SFMono-Regular, Consolas, monospace;
  font-size: 12px;
}

.timeline-highlights {
  display: grid;
  gap: var(--space-2);
  margin: var(--space-4) 0 0;
  padding: 0;
  list-style: none;
}

.timeline-highlights li {
  position: relative;
  padding-left: var(--space-4);
  color: var(--text-secondary);
  overflow-wrap: anywhere;
}

.timeline-highlights li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--accent-primary);
}

.phase-list {
  display: grid;
  gap: var(--space-3);
}

.phase-card {
  display: grid;
  grid-template-columns: 130px minmax(0, 1fr) auto;
  gap: var(--space-4);
  align-items: start;
  padding: var(--space-5);
}

.phase-key {
  color: var(--text-tertiary);
  font-family: "Berkeley Mono", "JetBrains Mono", SFMono-Regular, Consolas, monospace;
  font-size: 12px;
}

.phase-card h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 620;
}

.phase-card p {
  margin: var(--space-1) 0 0;
  color: var(--text-secondary);
}

.status-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 78px;
  min-height: 28px;
  padding: 0 var(--space-3);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 560;
}

.status-badge.done {
  background: rgba(39, 166, 68, 0.14);
  color: var(--status-success);
}

.status-badge.running {
  background: rgba(245, 158, 11, 0.14);
  color: var(--status-warning);
}

.status-badge.watch {
  background: rgba(96, 165, 250, 0.14);
  color: var(--status-info);
}

.evidence-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.evidence-card {
  overflow: hidden;
  max-width: 100%;
}

.evidence-frame {
  display: grid;
  place-items: center;
  min-height: 220px;
  aspect-ratio: 16 / 9;
  background: var(--surface-sunken);
}

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

.evidence-body {
  padding: var(--space-4);
}

.evidence-body h3,
.session-card h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 620;
  overflow-wrap: anywhere;
}

.evidence-body p,
.session-card p,
.watch-item p {
  margin: var(--space-2) 0 0;
  color: var(--text-secondary);
  overflow-wrap: anywhere;
}

.source-path {
  display: block;
  margin-top: var(--space-3);
  color: var(--text-tertiary);
  font-family: "Berkeley Mono", "JetBrains Mono", SFMono-Regular, Consolas, monospace;
  font-size: 12px;
  overflow-wrap: anywhere;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  gap: var(--space-6);
}

.source-table-wrap {
  overflow-x: auto;
  max-width: 100%;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 660px;
}

th,
td {
  padding: var(--space-3);
  border-bottom: 1px solid var(--border-subtle);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--text-tertiary);
  font-size: 12px;
  font-weight: 560;
}

td {
  color: var(--text-secondary);
}

td strong {
  color: var(--text-primary);
}

.watch-list,
.session-list {
  display: grid;
  gap: var(--space-3);
}

.watch-item,
.session-card {
  padding: var(--space-4);
}

.session-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-4);
}

.session-meta {
  color: var(--text-tertiary);
  font-family: "Berkeley Mono", "JetBrains Mono", SFMono-Regular, Consolas, monospace;
  font-size: 12px;
}

.deploy-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  border: 1px solid var(--border-default);
}

.deploy-band p {
  margin: var(--space-2) 0 0;
  color: var(--text-secondary);
}

.primary-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 var(--space-5);
  background: var(--accent-primary);
  color: white;
  font-weight: 560;
}

.primary-link:hover,
.primary-link:focus-visible {
  background: var(--accent-hover);
  outline: none;
}

.empty {
  padding: var(--space-5);
  border: 1px dashed var(--border-default);
  border-radius: var(--radius-lg);
  color: var(--text-tertiary);
}

@media (max-width: 1100px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .rail {
    position: static;
    min-height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--border-default);
  }

  .nav-list {
    grid-template-columns: repeat(auto-fit, minmax(88px, 1fr));
  }

  .rail-note {
    display: none;
  }

  .metric-grid,
  .evidence-grid,
  .two-column {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 760px) {
  body {
    font-size: 14px;
  }

  .content,
  .rail,
  .guide-page,
  .hero-band,
  .section-band {
    padding: var(--space-4);
  }

  .guide-page,
  .hero-band,
  .metric-grid,
  .evidence-grid,
  .two-column,
  .timeline-item,
  .phase-card,
  .session-card {
    grid-template-columns: 1fr;
  }

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

  .briefing-item,
  .reader-path div {
    grid-template-columns: 1fr;
  }

  .guide-copy h2 {
    font-size: 28px;
    line-height: 1.16;
  }

  .current-brief strong {
    font-size: 30px;
  }

  .deploy-band {
    align-items: stretch;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
  }
}