:root {
  --bg: #f3ecdd;
  --bg-soft: rgba(255, 255, 255, 0.6);
  --ink: #10233d;
  --ink-soft: #51627a;
  --line: rgba(16, 35, 61, 0.12);
  --card: rgba(255, 251, 245, 0.88);
  --shadow: 0 20px 44px rgba(20, 38, 63, 0.12);
  --strong: #33a46f;
  --watch: #db6d41;
  --neutral: #4f6dbd;
  --glow: rgba(44, 92, 243, 0.16);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --max-width: 1240px;
  font-family: "Space Grotesk", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(239, 106, 91, 0.22), transparent 28%),
    radial-gradient(circle at top right, rgba(44, 92, 243, 0.14), transparent 26%),
    repeating-linear-gradient(
      0deg,
      rgba(16, 35, 61, 0.025) 0,
      rgba(16, 35, 61, 0.025) 1px,
      transparent 1px,
      transparent 26px
    ),
    repeating-linear-gradient(
      90deg,
      rgba(16, 35, 61, 0.025) 0,
      rgba(16, 35, 61, 0.025) 1px,
      transparent 1px,
      transparent 26px
    ),
    linear-gradient(180deg, #fbf6ed 0%, var(--bg) 45%, #f8f2e8 100%);
}

button,
input,
textarea {
  font: inherit;
}

.app-shell {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
  padding: 2rem 0 4rem;
}

.hero-card,
.briefing-card,
.focus-card,
.node-card {
  backdrop-filter: blur(12px);
  background: linear-gradient(180deg, rgba(255, 252, 246, 0.9), rgba(255, 248, 239, 0.78));
  border: 1px solid rgba(16, 35, 61, 0.1);
  box-shadow: var(--shadow);
}

.hero-card {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: 1.75rem;
  padding: 2rem;
  border-radius: var(--radius-xl);
  position: relative;
  overflow: hidden;
}

.hero-card::after {
  content: "";
  position: absolute;
  inset: auto -6% -38% 42%;
  height: 360px;
  background: radial-gradient(circle, rgba(44, 92, 243, 0.16), transparent 60%);
  pointer-events: none;
}

.eyebrow {
  margin: 0 0 0.65rem;
  color: var(--ink-soft);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero-copy h1 {
  margin: 0;
  max-width: 12ch;
  font-family: "Fraunces", serif;
  font-size: clamp(2.7rem, 7vw, 4.7rem);
  line-height: 0.92;
  letter-spacing: -0.04em;
}

.hero-summary {
  max-width: 56ch;
  margin: 1rem 0 0;
  color: var(--ink-soft);
  font-size: 1rem;
  line-height: 1.7;
}

.hero-tools {
  display: grid;
  gap: 1rem;
  align-content: start;
}

.tool-cluster,
.jump-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.tool-button,
.jump-button {
  border: 1px solid rgba(16, 35, 61, 0.12);
  background: rgba(255, 255, 255, 0.62);
  color: var(--ink);
  border-radius: 999px;
  padding: 0.78rem 1rem;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.tool-button:hover,
.jump-button:hover,
.tool-button:focus-visible,
.jump-button:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(16, 35, 61, 0.24);
  box-shadow: 0 14px 24px rgba(16, 35, 61, 0.08);
  outline: none;
}

.tool-button--accent,
.jump-button.is-active {
  background: linear-gradient(135deg, rgba(44, 92, 243, 0.14), rgba(239, 106, 91, 0.14));
  border-color: rgba(44, 92, 243, 0.3);
}

.jump-button {
  padding-inline: 0.92rem;
  font-size: 0.92rem;
}

.overview-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(0, 1.2fr);
  gap: 1.2rem;
  margin-top: 1.25rem;
}

.briefing-card,
.focus-card {
  border-radius: var(--radius-lg);
  padding: 1.4rem;
}

.clock-band {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.4rem;
  margin: 1rem 0 1.2rem;
}

.clock-band span {
  display: grid;
  place-items: center;
  min-height: 2.5rem;
  border-radius: 999px;
  background: rgba(16, 35, 61, 0.06);
  color: var(--ink-soft);
  font-size: 0.78rem;
  font-weight: 700;
}

.clock-rules {
  display: grid;
  gap: 0.8rem;
}

.clock-rules article {
  border-radius: var(--radius-md);
  border: 1px solid rgba(16, 35, 61, 0.08);
  background: rgba(255, 255, 255, 0.58);
  padding: 0.95rem 1rem;
}

.clock-rules h2,
.focus-card h2 {
  margin: 0;
  font-size: 1rem;
}

.clock-rules p,
.focus-card p,
.detail-card p,
.detail-card li,
.node-memory,
.node-meta,
.focus-note {
  color: var(--ink-soft);
  line-height: 1.6;
}

.hard-stop {
  border-color: rgba(219, 109, 65, 0.28);
  background: rgba(239, 106, 91, 0.08);
}

.mini-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.2rem;
}

.legend-pill,
.status-pill,
.toolkit-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border-radius: 999px;
  padding: 0.42rem 0.72rem;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.legend-pill--strong,
.status-pill--strong {
  color: #1e7e55;
  background: rgba(51, 164, 111, 0.13);
}

.legend-pill--watch,
.status-pill--watch {
  color: #b3552f;
  background: rgba(219, 109, 65, 0.14);
}

.legend-pill--neutral,
.status-pill--neutral {
  color: #3654a4;
  background: rgba(79, 109, 189, 0.14);
}

.focus-card {
  display: grid;
  gap: 1rem;
}

.focus-step {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 1rem;
}

.focus-number {
  display: grid;
  place-items: center;
  width: 3.25rem;
  height: 3.25rem;
  border-radius: 1rem;
  font-weight: 700;
  font-size: 1rem;
  color: white;
}

.focus-title {
  margin: 0.2rem 0 0.35rem;
  font-family: "Fraunces", serif;
  font-size: clamp(1.5rem, 4vw, 2rem);
  line-height: 1.05;
}

.focus-memory {
  margin: 0;
  font-weight: 700;
  color: var(--ink);
}

.focus-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
}

.focus-block {
  padding: 1rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid rgba(16, 35, 61, 0.08);
}

.focus-block--wide {
  grid-column: 1 / -1;
}

.focus-block h3,
.detail-card h3 {
  margin: 0 0 0.5rem;
  font-size: 0.88rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.focus-block ul,
.detail-card ul {
  margin: 0;
  padding-left: 1rem;
}

.focus-footer {
  padding: 1rem;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(44, 92, 243, 0.08), rgba(255, 255, 255, 0.45));
  border: 1px solid rgba(44, 92, 243, 0.1);
}

.diagram-shell {
  position: relative;
  margin-top: 2rem;
  padding: 1rem 0;
}

.diagram-spine {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  transform: translateX(-50%);
  background: linear-gradient(
    180deg,
    rgba(16, 35, 61, 0.1),
    rgba(44, 92, 243, 0.4),
    rgba(16, 35, 61, 0.08)
  );
}

.diagram-list {
  display: grid;
  gap: 1.4rem;
}

.diagram-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 84px minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
}

.diagram-row[data-side="left"] .node-slot {
  grid-column: 1;
}

.diagram-row[data-side="left"] .node-slot--empty {
  grid-column: 3;
}

.diagram-row[data-side="right"] .node-slot {
  grid-column: 3;
}

.diagram-row[data-side="right"] .node-slot--empty {
  grid-column: 1;
}

.node-marker {
  grid-column: 2;
  position: relative;
  display: grid;
  justify-items: center;
  gap: 0.75rem;
  padding-top: 1.1rem;
}

.marker-dot {
  width: 1rem;
  height: 1rem;
  border-radius: 999px;
  border: 2px solid rgba(255, 255, 255, 0.8);
  box-shadow: 0 0 0 5px rgba(44, 92, 243, 0.16);
}

.marker-time {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--ink-soft);
}

.node-card {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border-left: 5px solid var(--accent);
}

.node-card.is-selected {
  box-shadow:
    var(--shadow),
    0 0 0 1px rgba(44, 92, 243, 0.24),
    0 0 0 10px rgba(44, 92, 243, 0.05);
}

.node-toggle {
  width: 100%;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: start;
  padding: 1.1rem 1.2rem 1rem;
  border: 0;
  background: transparent;
  color: inherit;
  cursor: pointer;
  text-align: left;
}

.node-toggle:focus-visible {
  outline: 2px solid rgba(44, 92, 243, 0.42);
  outline-offset: -2px;
}

.node-index {
  width: 3rem;
  height: 3rem;
  display: grid;
  place-items: center;
  border-radius: 1rem;
  font-weight: 700;
  color: white;
  background: var(--accent);
  box-shadow: inset 0 -10px 22px rgba(0, 0, 0, 0.16);
}

.node-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  align-items: center;
  margin: 0 0 0.35rem;
  font-size: 0.83rem;
}

.node-title {
  margin: 0;
  font-size: clamp(1.2rem, 2.4vw, 1.45rem);
  line-height: 1.1;
}

.node-memory {
  margin: 0.55rem 0 0;
  font-weight: 500;
}

.toggle-caret {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.2rem;
  min-height: 2.2rem;
  border-radius: 999px;
  background: rgba(16, 35, 61, 0.06);
  color: var(--ink);
  font-size: 1rem;
  transition: transform 180ms ease;
}

.node-card.is-open .toggle-caret {
  transform: rotate(180deg);
}

.node-body-shell {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 220ms ease;
}

.node-card.is-open .node-body-shell {
  grid-template-rows: 1fr;
}

.node-body {
  min-height: 0;
  overflow: hidden;
}

.node-body-inner {
  display: grid;
  gap: 0.9rem;
  padding: 0 1.2rem 1.2rem;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
}

.detail-card {
  padding: 1rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.58);
  border: 1px solid rgba(16, 35, 61, 0.08);
}

.detail-card--wide {
  grid-column: 1 / -1;
}

.detail-card--watch {
  background: rgba(239, 106, 91, 0.08);
  border-color: rgba(219, 109, 65, 0.16);
}

.detail-card--say {
  background: rgba(44, 92, 243, 0.06);
  border-color: rgba(44, 92, 243, 0.12);
}

.toolkit-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.toolkit-pill {
  background: rgba(16, 35, 61, 0.06);
  color: var(--ink);
}

.toolkit-pill--interactive {
  pointer-events: none;
}

.toolkit-explorer {
  display: grid;
  gap: 0.8rem;
}

.toolkit-item {
  border-radius: var(--radius-md);
  border: 1px solid rgba(16, 35, 61, 0.08);
  background: rgba(255, 255, 255, 0.56);
  overflow: hidden;
}

.toolkit-item__button {
  width: 100%;
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.95rem 1rem;
  border: 0;
  background: transparent;
  color: inherit;
  cursor: pointer;
  text-align: left;
}

.toolkit-item__button:focus-visible {
  outline: 2px solid rgba(44, 92, 243, 0.3);
  outline-offset: -2px;
}

.toolkit-item__copy {
  display: grid;
  gap: 0.5rem;
}

.toolkit-item__summary {
  color: var(--ink-soft);
  font-size: 0.93rem;
  line-height: 1.6;
}

.toolkit-item__caret {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  min-height: 2rem;
  border-radius: 999px;
  background: rgba(16, 35, 61, 0.06);
  transition: transform 180ms ease;
}

.toolkit-item.is-open .toolkit-item__caret {
  transform: rotate(180deg);
}

.toolkit-item__panel-shell {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 200ms ease;
}

.toolkit-item.is-open .toolkit-item__panel-shell {
  grid-template-rows: 1fr;
}

.toolkit-item__panel {
  min-height: 0;
  overflow: hidden;
}

.toolkit-item__panel-inner {
  padding: 0 1rem 1rem;
}

.toolkit-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.toolkit-detail-card {
  border-radius: 14px;
  border: 1px solid rgba(16, 35, 61, 0.07);
  background: rgba(255, 250, 243, 0.82);
  padding: 0.9rem;
}

.toolkit-detail-card--wide {
  grid-column: 1 / -1;
}

.toolkit-detail-card--frame {
  background: linear-gradient(135deg, rgba(44, 92, 243, 0.08), rgba(255, 255, 255, 0.72));
}

.toolkit-detail-card h4 {
  margin: 0 0 0.45rem;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink);
}

.toolkit-detail-card p,
.toolkit-detail-card li {
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.65;
}

.toolkit-frame {
  color: var(--ink);
  font-weight: 500;
}

.toolkit-example-list {
  margin: 0;
  padding-left: 1rem;
}

.handoff {
  display: flex;
  gap: 0.8rem;
  align-items: center;
  padding: 0.95rem 1rem;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.7), rgba(44, 92, 243, 0.06));
  border: 1px solid rgba(16, 35, 61, 0.08);
}

.handoff-label {
  font-weight: 700;
  color: var(--ink);
  flex: none;
}

.no-script {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 2rem auto;
  padding: 1rem;
  border-radius: 1rem;
  background: rgba(239, 106, 91, 0.08);
  border: 1px solid rgba(239, 106, 91, 0.16);
}

@media (max-width: 980px) {
  .hero-card,
  .overview-grid,
  .detail-grid,
  .focus-grid,
  .toolkit-detail-grid {
    grid-template-columns: 1fr;
  }

  .diagram-spine {
    left: 1.1rem;
    transform: none;
  }

  .diagram-row {
    grid-template-columns: 38px minmax(0, 1fr);
  }

  .diagram-row .node-slot,
  .diagram-row .node-slot--empty,
  .diagram-row .node-marker {
    grid-column: auto;
  }

  .node-marker {
    grid-column: 1;
    padding-top: 0.9rem;
  }

  .node-slot {
    grid-column: 2;
  }

  .node-slot--empty {
    display: none;
  }

  .marker-time {
    writing-mode: horizontal-tb;
    transform: none;
    font-size: 0.68rem;
  }
}

@media (max-width: 640px) {
  .app-shell {
    width: min(calc(100% - 1rem), var(--max-width));
    padding-top: 1rem;
  }

  .hero-card,
  .briefing-card,
  .focus-card,
  .node-card {
    border-radius: 20px;
  }

  .hero-card,
  .briefing-card,
  .focus-card,
  .node-toggle,
  .node-body-inner {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .hero-card {
    padding-top: 1.35rem;
    padding-bottom: 1.35rem;
  }

  .node-toggle {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .toggle-caret {
    grid-column: 2;
    justify-self: end;
  }
}