:root {
  color-scheme: light;
  --bg: #f3efe5;
  --bg-accent: #dce8d9;
  --panel: rgba(255, 250, 243, 0.8);
  --panel-border: rgba(54, 69, 79, 0.12);
  --text: #1e2d2f;
  --muted: #5d6a6e;
  --primary: #0d6b5d;
  --primary-strong: #084d43;
  --secondary: #d98f53;
  --error: #a2393d;
  --shadow: 0 18px 50px rgba(24, 37, 38, 0.12);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 12px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Avenir Next", "Segoe UI Variable", "PingFang SC", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(217, 143, 83, 0.28), transparent 28%),
    radial-gradient(circle at top right, rgba(13, 107, 93, 0.18), transparent 32%),
    linear-gradient(180deg, var(--bg-accent) 0%, var(--bg) 35%, #efe7da 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.12) 1px, transparent 1px);
  background-size: 22px 22px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.7), transparent 85%);
}

.page-shell {
  width: min(1120px, calc(100% - 28px));
  margin: 0 auto;
  padding: calc(24px + env(safe-area-inset-top)) 0
    calc(24px + env(safe-area-inset-bottom));
  position: relative;
}

.hero {
  padding: 28px;
  border-radius: var(--radius-xl);
  background: linear-gradient(
    140deg,
    rgba(255, 248, 236, 0.94),
    rgba(243, 255, 249, 0.82)
  );
  border: 1px solid rgba(54, 69, 79, 0.08);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.eyebrow {
  margin: 0 0 10px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--primary);
}

.hero h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3.75rem);
  line-height: 1.02;
  letter-spacing: -0.04em;
  max-width: 10ch;
}

.hero-copy {
  margin: 18px 0 0;
  max-width: 58ch;
  line-height: 1.65;
  color: var(--muted);
  font-size: 1rem;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.hero-badges span {
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(13, 107, 93, 0.1);
  color: var(--primary-strong);
  font-size: 0.92rem;
  font-weight: 600;
}

.layout {
  display: grid;
  gap: 20px;
  margin-top: 22px;
}

.panel {
  padding: 22px;
  border-radius: var(--radius-lg);
  background: var(--panel);
  border: 1px solid var(--panel-border);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.panel-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  align-items: end;
  margin-bottom: 18px;
}

.panel-head h2,
.panel-head h3 {
  margin: 0;
}

.panel-head p,
.notice p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.button-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.button-grid.compact {
  margin-top: 12px;
}

button {
  appearance: none;
  border: 0;
  border-radius: var(--radius-md);
  padding: 15px 16px;
  font: inherit;
  font-weight: 700;
  color: var(--text);
  background: #fffef8;
  box-shadow:
    inset 0 0 0 1px rgba(54, 69, 79, 0.09),
    0 10px 20px rgba(24, 37, 38, 0.06);
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    background 180ms ease;
  cursor: pointer;
}

button:hover,
button:focus-visible {
  transform: translateY(-1px);
  box-shadow:
    inset 0 0 0 1px rgba(54, 69, 79, 0.14),
    0 12px 26px rgba(24, 37, 38, 0.1);
  outline: none;
}

button.primary {
  background: linear-gradient(135deg, var(--primary) 0%, #138f7d 100%);
  color: #f7f8f2;
}

button.ghost {
  background: rgba(255, 255, 255, 0.45);
  color: var(--muted);
}

.notice {
  margin-top: 16px;
  padding: 16px;
  border-radius: var(--radius-md);
  background: rgba(217, 143, 83, 0.1);
  border: 1px solid rgba(217, 143, 83, 0.18);
}

.notice strong {
  display: block;
  margin-bottom: 8px;
  color: #7c4a1f;
}

.live-panel {
  overflow: hidden;
}

.video-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.9fr);
  gap: 18px;
  align-items: start;
}

.viewer-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.92fr) minmax(0, 1.25fr);
  gap: 18px;
  align-items: start;
}

.video-stage {
  padding: 16px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(54, 69, 79, 0.08);
}

.wall-stage {
  min-height: 420px;
}

.video-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.video-head h3 {
  margin: 0;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--primary-strong);
  background: rgba(13, 107, 93, 0.12);
}

.status-badge.offline {
  color: var(--error);
  background: rgba(162, 57, 61, 0.12);
}

.video-frame {
  width: 100%;
  aspect-ratio: 9 / 16;
  object-fit: cover;
  border-radius: 18px;
  background:
    radial-gradient(circle at top, rgba(217, 143, 83, 0.12), transparent 35%),
    linear-gradient(180deg, #0e1719 0%, #1b2427 100%);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.05);
}

.stream-side {
  display: grid;
  gap: 14px;
}

.meta-grid {
  display: grid;
  gap: 12px;
}

.meta-card {
  padding: 14px 16px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.58);
  border: 1px solid rgba(54, 69, 79, 0.08);
}

.meta-card span {
  display: block;
  margin-bottom: 8px;
  font-size: 0.84rem;
  color: var(--muted);
}

.meta-card strong {
  display: block;
  font-size: 1.02rem;
  line-height: 1.4;
}

.field {
  display: grid;
  gap: 8px;
}

.field span {
  font-size: 0.9rem;
  font-weight: 700;
}

.text-input {
  width: 100%;
  border: 1px solid rgba(54, 69, 79, 0.12);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  font: inherit;
  color: var(--text);
  background: rgba(255, 255, 255, 0.86);
}

.text-input:focus {
  outline: 2px solid rgba(13, 107, 93, 0.2);
  border-color: rgba(13, 107, 93, 0.35);
}

.inline-note {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.empty-state {
  display: grid;
  place-items: center;
  min-height: 220px;
  padding: 18px;
  border-radius: var(--radius-md);
  border: 1px dashed rgba(54, 69, 79, 0.2);
  color: var(--muted);
  text-align: center;
  line-height: 1.7;
  background: rgba(255, 255, 255, 0.35);
}

.wall-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}

.wall-card {
  padding: 12px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.58);
  border: 1px solid rgba(54, 69, 79, 0.08);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.15);
}

.wall-card-head {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 10px;
  margin-bottom: 10px;
}

.wall-label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.78rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.wall-card strong {
  display: block;
  font-size: 1rem;
}

.wall-video {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border-radius: 14px;
  background:
    radial-gradient(circle at top, rgba(217, 143, 83, 0.12), transparent 35%),
    linear-gradient(180deg, #0e1719 0%, #1b2427 100%);
}

.wall-note {
  margin: 10px 2px 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

.summary-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.summary-card {
  padding: 16px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.58);
  border: 1px solid rgba(54, 69, 79, 0.08);
}

.summary-label {
  display: block;
  font-size: 0.84rem;
  color: var(--muted);
  margin-bottom: 8px;
}

.summary-card strong {
  display: block;
  font-size: 1rem;
  line-height: 1.4;
}

.json-wrap {
  margin-top: 18px;
  overflow: hidden;
  border-radius: var(--radius-md);
  border: 1px solid rgba(54, 69, 79, 0.08);
  background: rgba(28, 35, 38, 0.96);
}

.json-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  color: #eff1e8;
  background: rgba(255, 255, 255, 0.04);
}

.json-head h3 {
  margin: 0;
  font-size: 0.96rem;
}

#json-size {
  color: rgba(239, 241, 232, 0.72);
  font-size: 0.84rem;
}

#json-output {
  margin: 0;
  padding: 16px;
  min-height: 320px;
  max-height: 520px;
  overflow: auto;
  color: #edf4d2;
  font-size: 0.87rem;
  line-height: 1.65;
  font-family: "Cascadia Code", "SFMono-Regular", Consolas, monospace;
}

.log-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.log-list li {
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.54);
  border: 1px solid rgba(54, 69, 79, 0.08);
  line-height: 1.5;
}

.log-list li.error {
  color: var(--error);
  border-color: rgba(162, 57, 61, 0.16);
  background: rgba(162, 57, 61, 0.06);
}

.log-list li.success {
  color: var(--primary-strong);
  border-color: rgba(13, 107, 93, 0.14);
  background: rgba(13, 107, 93, 0.06);
}

@media (max-width: 820px) {
  .page-shell {
    width: min(100% - 18px, 760px);
    padding-top: calc(16px + env(safe-area-inset-top));
    padding-bottom: calc(16px + env(safe-area-inset-bottom));
  }

  .hero,
  .panel {
    padding: 18px;
  }

  .hero h1 {
    max-width: none;
  }

  .button-grid,
  .summary-cards,
  .video-layout,
  .viewer-grid {
    grid-template-columns: 1fr;
  }

  #json-output {
    min-height: 260px;
  }
}