/* Mini-Grid Digital Twin — DERMS-style static case-study UI */

:root {
  color-scheme: dark;
  --bg: #091018;
  --bg-deep: #060b11;
  --surface: rgba(14, 23, 34, 0.88);
  --surface-strong: rgba(19, 31, 45, 0.96);
  --surface-soft: rgba(255, 255, 255, 0.04);
  --line: rgba(173, 196, 220, 0.12);
  --line-strong: rgba(255, 255, 255, 0.24);
  --text: #edf3ff;
  --text-soft: #9fb0c9;
  --text-muted: #7d8ca4;
  --accent: #ff7a3d;
  --accent-soft: #ffb088;
  --accent-glow: rgba(255, 122, 61, 0.22);
  --teal: #44d3c5;
  --green: #4ade80;
  --blue: #6ab8ff;
  --yellow: #fbbf24;
  --danger: #f87171;
  --black: #edf3ff;
  --radius: 24px;
  --radius-sm: 16px;
  --shadow: 0 30px 60px rgba(0, 0, 0, 0.28);
  --focus-ring: 0 0 0 3px rgba(106, 184, 255, 0.35);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: "Manrope", sans-serif;
  background:
    radial-gradient(1000px 700px at 10% -10%, rgba(68, 211, 197, 0.16), transparent 60%),
    radial-gradient(1200px 680px at 100% -5%, rgba(255, 122, 61, 0.18), transparent 55%),
    linear-gradient(180deg, var(--bg-deep) 0%, var(--bg) 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55), transparent 80%);
  opacity: 0.18;
}

a {
  color: inherit;
}

button,
input,
select {
  font: inherit;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: 16px;
  transform: translateY(-160%);
  z-index: 1000;
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--text);
  color: var(--bg-deep);
  font-weight: 700;
  text-decoration: none;
  transition: transform 180ms ease;
}

.skip-link:focus-visible {
  transform: translateY(0);
}

.page {
  width: min(1480px, 94vw);
  margin: 18px auto 42px;
  position: relative;
}

.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.01)),
    var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  position: relative;
  overflow: hidden;
  animation: rise 420ms ease both;
}

.panel::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(255, 122, 61, 0.10), transparent 38%);
  opacity: 0.9;
}

.panel > * {
  position: relative;
  z-index: 1;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.tabs button,
.pipeline-step,
.asset-button {
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease,
    color 180ms ease,
    box-shadow 180ms ease,
    opacity 180ms ease;
}

.panel-hero {
  padding: 20px;
  min-height: 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(380px, 0.8fr);
  gap: 16px;
  align-items: stretch;
}

.hero-copy {
  display: grid;
  align-content: start;
  gap: 12px;
}

.hero-eyebrow,
.metric-label,
.control-label {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 11px;
  font-weight: 800;
  color: var(--text-soft);
}

.hero-copy h1 {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(30px, 3.2vw, 48px);
  line-height: 1;
  letter-spacing: -0.03em;
  max-width: 18ch;
  text-wrap: balance;
}

.lead {
  margin: 0;
  max-width: 62ch;
  color: #d5deef;
  font-size: 14px;
  line-height: 1.55;
}

.hero-badges,
.tabs,
.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.badge {
  border-radius: 999px;
  border: 1px solid rgba(255, 122, 61, 0.28);
  background: rgba(255, 122, 61, 0.10);
  color: var(--accent-soft);
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 700;
}

.repo-hints {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 14px;
}

.repo-hint {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(6, 11, 17, 0.48);
  padding: 14px 16px;
}

.repo-hint strong,
.repo-hint span {
  display: block;
}

.repo-hint strong {
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.94rem;
}

.repo-hint span {
  color: var(--text-soft);
  font-size: 0.82rem;
  line-height: 1.5;
  margin-top: 5px;
}

.repo-hint code {
  color: #cde6ff;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.78rem;
}

.metric-board {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.metric-tile,
.change-card {
  min-height: 112px;
  padding: 14px;
  border-radius: var(--radius-sm);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02)),
    rgba(6, 11, 17, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: grid;
  align-content: space-between;
  gap: 12px;
}

.metric-value,
.change-card strong {
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(28px, 3.2vw, 44px);
  line-height: 0.95;
  letter-spacing: -0.03em;
}

.metric-meta,
.change-card span {
  color: var(--text-soft);
  font-size: 12px;
  line-height: 1.5;
}

.text-green {
  color: var(--green);
}

.tabs {
  padding: 18px 0;
}

.tabs button,
.pipeline-step,
.asset-button {
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  cursor: pointer;
  padding: 10px 14px;
  font-size: 13px;
  font-weight: 800;
}

.tabs button:hover,
.pipeline-step:hover,
.asset-button:hover {
  border-color: rgba(255, 122, 61, 0.45);
  transform: translateY(-1px);
}

.tabs button.active,
.pipeline-step.active,
.asset-button.active {
  background: rgba(255, 122, 61, 0.18);
  border-color: rgba(255, 122, 61, 0.75);
  color: #ffe2d4;
}

.demo-main {
  display: grid;
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: grid;
  gap: 18px;
}

#walkthrough-panel.active {
  grid-template-columns: minmax(280px, 0.35fr) minmax(0, 0.65fr);
}

#comparison-panel.active {
  grid-template-columns: 1fr;
}

#inspector-panel.active {
  grid-template-columns: minmax(260px, 0.35fr) minmax(0, 0.65fr);
}

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

.panel-header {
  align-items: center;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 20px;
}

h2,
.diagram-card h3,
.representation h3 {
  font-size: 0.9rem;
  letter-spacing: 0.12em;
  margin: 0;
  text-transform: uppercase;
}

.content {
  padding: 18px 20px 22px;
}

#pipeline,
.walkthrough-grid,
.representation-grid,
.asset-list {
  display: grid;
  gap: 12px;
}

#pipeline {
  gap: 0;
}

.flow-node-wrap {
  display: grid;
  gap: 8px;
  grid-template-columns: 1fr;
  justify-items: stretch;
}

.flow-node-wrap + .flow-node-wrap {
  margin-top: 8px;
}

.flow-arrow {
  align-items: center;
  color: var(--accent-soft);
  display: inline-flex;
  font-family: "Space Grotesk", sans-serif;
  font-size: 24px;
  font-weight: 700;
  justify-content: center;
  line-height: 1;
  opacity: 0.95;
  padding: 0;
}

.pipeline-step,
.asset-button {
  border-radius: var(--radius-sm);
  text-align: left;
  width: 100%;
}

.flow-label,
.asset-button b {
  display: block;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.pipeline-step small,
.asset-button small {
  color: var(--text-soft);
  display: block;
  font-size: 12px;
  line-height: 1.5;
  margin-top: 4px;
}

.pipeline-step code {
  background: rgba(6, 11, 17, 0.78);
  border: 1px solid rgba(106, 184, 255, 0.20);
  border-radius: 999px;
  color: #cde6ff;
  display: inline-flex;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 11px;
  margin-top: 10px;
  max-width: 100%;
  overflow-x: auto;
  padding: 6px 9px;
  white-space: nowrap;
}

.pipeline-step.active small,
.pipeline-step:hover small,
.asset-button.active small,
.asset-button:hover small {
  color: #ffe2d4;
}

.walkthrough-copy,
.panel-explainer,
.diagram-note,
.report {
  color: var(--text-soft);
  line-height: 1.55;
  margin: 0;
}

.panel-explainer {
  padding: 18px 20px 0;
}

.check-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
}

.check-list li {
  align-items: center;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  list-style: none;
  padding: 10px 12px;
}

.status-pill {
  border-radius: 999px;
  color: var(--bg-deep);
  display: inline-flex;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 5px 9px;
  text-transform: uppercase;
  background: var(--teal);
}

.status-pill.pass {
  background: var(--green);
}

.status-pill.info {
  background: var(--blue);
}

pre {
  background: rgba(6, 11, 17, 0.82);
  border: 1px solid rgba(106, 184, 255, 0.20);
  border-radius: 16px;
  color: #cde6ff;
  font: 0.78rem/1.55 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  margin: 8px 0 0;
  max-height: 380px;
  overflow: auto;
  padding: 14px;
  white-space: pre-wrap;
}

.asset-list {
  max-height: 720px;
  overflow: auto;
}

.comparison-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  padding: 18px 20px 22px;
}

.diagram-card {
  border: 1px solid var(--line);
  border-radius: 22px;
  overflow: hidden;
  background:
    radial-gradient(600px 360px at 50% 35%, rgba(106, 184, 255, 0.10), transparent 70%),
    rgba(6, 11, 17, 0.36);
}

.diagram-card h3 {
  border-bottom: 1px solid var(--line);
  padding: 14px 16px;
}

.diagram-note {
  padding: 14px 16px 0;
}

.import-change-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  padding: 18px 20px 0;
}

.change-card {
  min-height: 120px;
}

.network-diagram {
  background:
    radial-gradient(400px 300px at 20% 20%, rgba(68, 211, 197, 0.10), transparent 65%),
    rgba(8, 16, 26, 0.42);
  min-height: 520px;
  width: 100%;
}

.legend {
  padding: 0 20px 18px;
}

.legend span {
  align-items: center;
  color: var(--text-soft);
  display: inline-flex;
  gap: 6px;
  font-size: 12px;
}

.swatch {
  border-radius: 999px;
  display: inline-block;
  height: 10px;
  width: 10px;
}

svg text {
  font-family: "Manrope", sans-serif;
}

@media (max-width: 980px) {
  .hero-grid,
  .repo-hints,
  #walkthrough-panel.active,
  #inspector-panel.active,
  #comparison-panel.active,
  .comparison-grid {
    grid-template-columns: 1fr;
  }

  .metric-board,
  .import-change-grid {
    grid-template-columns: 1fr;
  }

  .network-diagram {
    min-height: 440px;
  }
}

@media (max-width: 640px) {
  .page {
    width: min(100% - 24px, 1480px);
    margin-top: 12px;
  }

  .panel-hero,
  .content,
  .panel-header {
    padding: 18px;
  }
}