:root {
  --bg: #f3efe6;
  --bg-accent: #d9e6ef;
  --panel: rgba(255, 252, 247, 0.9);
  --panel-strong: rgba(255, 250, 243, 0.98);
  --ink: #182430;
  --muted: #516273;
  --line: rgba(24, 36, 48, 0.12);
  --brand: #0c6c8c;
  --brand-strong: #0a5168;
  --warm: #c06c2d;
  --shadow: 0 18px 48px rgba(24, 36, 48, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(192, 108, 45, 0.16), transparent 32%),
    radial-gradient(circle at top right, rgba(12, 108, 140, 0.14), transparent 28%),
    linear-gradient(180deg, var(--bg), #f7f4ed 56%, #ebe5d9 100%);
  font-family: "IBM Plex Sans", "Noto Sans SC", "Segoe UI", sans-serif;
}

.page-shell {
  width: min(1280px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 32px 0 40px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(280px, 0.9fr);
  gap: 20px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: linear-gradient(135deg, rgba(255, 250, 243, 0.96), rgba(240, 247, 251, 0.9));
  box-shadow: var(--shadow);
}

.eyebrow {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--brand);
}

.hero h1,
.wall-head h2 {
  margin: 0;
  font-family: "Azeret Mono", "IBM Plex Sans", sans-serif;
  font-size: clamp(32px, 4vw, 48px);
  line-height: 1.02;
}

.hero-text,
.wall-hint,
.status-line,
.board-url,
.board-facts dt,
.board-facts dd,
.board-select span,
.board-slot,
.metric-label,
.select-all,
button,
a {
  font-size: 15px;
}

.hero-text,
.status-line,
.wall-hint,
.board-url,
.board-facts dd,
.metric-label,
.select-all {
  color: var(--muted);
}

.hero-meta {
  display: grid;
  gap: 14px;
}

.metric-card {
  display: grid;
  gap: 8px;
  padding: 18px;
  border-radius: 20px;
  border: 1px solid rgba(12, 108, 140, 0.15);
  background: var(--panel);
}

.metric-card strong {
  font-size: 28px;
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 22px 0 14px;
}

.toolbar-main {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

button,
.board-open {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 16px;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  text-decoration: none;
  color: #fff;
  background: linear-gradient(135deg, var(--brand), var(--brand-strong));
  box-shadow: 0 10px 24px rgba(12, 108, 140, 0.18);
  transition: transform 120ms ease, box-shadow 120ms ease, opacity 120ms ease;
}

button:hover,
.board-open:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 26px rgba(12, 108, 140, 0.24);
}

button.ghost,
.board-copy,
.board-wall {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.84);
  border: 1px solid var(--line);
  box-shadow: none;
}

.select-all,
.board-select {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.status-line {
  margin: 0 0 16px;
  min-height: 22px;
}

.board-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

.board-card {
  display: grid;
  gap: 16px;
  padding: 20px;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: var(--panel-strong);
  box-shadow: 0 16px 36px rgba(24, 36, 48, 0.08);
}

.board-top,
.board-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.board-slot {
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(192, 108, 45, 0.12);
  color: var(--warm);
}

.board-title {
  margin: 0;
  font-size: 24px;
}

.board-url {
  margin: 8px 0 0;
  word-break: break-all;
}

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

.board-facts div {
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(12, 108, 140, 0.06);
}

.board-facts dt {
  margin: 0 0 6px;
  color: var(--brand-strong);
}

.board-facts dd {
  margin: 0;
  word-break: break-word;
}

.board-actions {
  flex-wrap: wrap;
}

.wall-section {
  margin-top: 28px;
  padding: 22px;
  border-radius: 28px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(24, 36, 48, 0.94), rgba(14, 24, 32, 0.96));
  box-shadow: var(--shadow);
}

.wall-section.is-hidden {
  display: none;
}

.wall-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
  color: #f7f4ed;
}

.wall-head .eyebrow,
.wall-hint {
  color: rgba(247, 244, 237, 0.72);
}

.wall-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 16px;
}

.wall-tile {
  display: grid;
  gap: 10px;
}

.wall-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: #f7f4ed;
}

.wall-frame {
  width: 100%;
  min-height: 520px;
  border: 1px solid rgba(247, 244, 237, 0.12);
  border-radius: 22px;
  background: #101820;
}

@media (max-width: 860px) {
  .page-shell {
    width: min(100vw - 20px, 1280px);
    padding-top: 18px;
  }

  .hero {
    grid-template-columns: 1fr;
    padding: 22px;
  }

  .toolbar,
  .wall-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .board-facts {
    grid-template-columns: 1fr;
  }

  .wall-frame {
    min-height: 380px;
  }
}