:root {
  --accent: #d6a55b;
  --accent-soft: rgba(214, 165, 91, 0.16);
  --line: rgba(214, 165, 91, 0.24);
  --line-strong: rgba(214, 165, 91, 0.42);
  --text-primary: #f7e9ce;
  --text-dim: #bea57a;
  --text-heading: #fff3de;
  --bg-top: #120b04;
  --bg-bottom: #050301;
  --bg-panel: rgba(24, 14, 6, 0.92);
  --bg-panel-strong: rgba(14, 8, 4, 0.96);
  --bg-card: rgba(29, 17, 8, 0.96);
  --bg-card-dark: rgba(15, 9, 4, 0.98);
  --bg-input: rgba(10, 6, 3, 0.94);
  --danger: #ff8b84;
  --shadow: 0 0 30px rgba(214, 165, 91, 0.08);
}

* {
  box-sizing: border-box;
}

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

body {
  font-family: "Share Tech Mono", monospace;
  background:
    radial-gradient(circle at top, rgba(214, 165, 91, 0.12), transparent 32%),
    linear-gradient(180deg, var(--bg-top), var(--bg-bottom));
  color: var(--text-primary);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(to bottom, transparent 0%, rgba(255, 255, 255, 0.03) 50%, transparent 100%),
    repeating-linear-gradient(
      to bottom,
      rgba(255, 255, 255, 0.02) 0,
      rgba(255, 255, 255, 0.02) 1px,
      transparent 1px,
      transparent 4px
    );
  opacity: 0.28;
}

.app-shell {
  width: min(1360px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 32px 0 48px;
  display: grid;
  gap: 18px;
}

.hero,
.panel {
  position: relative;
  background: linear-gradient(180deg, var(--bg-panel), var(--bg-panel-strong));
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.hero {
  padding: 28px;
  min-height: 160px;
  display: grid;
  align-content: end;
  gap: 10px;
}

.eyebrow {
  margin: 0;
  color: var(--text-dim);
  text-transform: uppercase;
  font-size: 0.84rem;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  font-size: clamp(2.2rem, 3.5vw, 3.6rem);
  color: var(--text-heading);
}

.hero-copy {
  max-width: 68ch;
  color: var(--text-dim);
}

.panel {
  padding: 22px;
}

.controls-panel,
.results-panel {
  display: grid;
  gap: 18px;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.section-heading h2 {
  color: var(--text-heading);
  font-size: 1.2rem;
}

.section-heading p {
  color: var(--text-dim);
}

.control-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.slot-grid,
.result-band {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 14px;
}

label,
.slot-card,
.result-card {
  display: grid;
  gap: 8px;
}

label,
.slot-card,
.result-card {
  background: linear-gradient(180deg, var(--bg-card), var(--bg-card-dark));
  border: 1px solid var(--line);
  padding: 14px;
}

label {
  color: var(--text-heading);
}

.slot-card {
  grid-column: span 4;
  min-height: 126px;
  align-content: start;
}

.slot-card h3 {
  font-size: 1rem;
}

.slot-card p {
  color: var(--text-dim);
  font-size: 0.92rem;
}

.slot-effect-preview {
  border-top: 1px solid var(--line);
  margin-top: 4px;
  padding-top: 10px;
  line-height: 1.45;
}

.full-span {
  grid-column: 1 / -1;
}

select {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--bg-input);
  color: var(--text-primary);
  padding: 10px 12px;
  font: inherit;
  outline: none;
}

select:focus {
  border-color: var(--line-strong);
  box-shadow: 0 0 0 1px var(--accent-soft);
}

.summary-band .result-card {
  grid-column: span 4;
}

.result-card {
  grid-column: span 6;
}

.full-width-card {
  grid-column: 1 / -1;
}

.card-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.card-heading span {
  color: var(--text-dim);
  font-size: 0.92rem;
}

.summary-list,
.stack-list {
  display: grid;
  gap: 10px;
}

.summary-row,
.stack-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.summary-row:last-child,
.stack-row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.summary-row strong,
.stack-row strong {
  color: var(--text-heading);
  font-weight: 400;
}

.summary-row span,
.stack-row span,
.stack-row p {
  color: var(--text-dim);
}

.summary-row span:last-child,
.stack-row span:last-child {
  text-align: right;
  color: var(--text-heading);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  border: 1px solid var(--line);
  background: var(--accent-soft);
  color: var(--text-heading);
  padding: 4px 8px;
  font-size: 0.9rem;
}

.loading-state,
.error-state,
.empty-state {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--bg-card), var(--bg-card-dark));
  padding: 14px;
}

.error-state {
  color: var(--danger);
}

.muted {
  color: var(--text-dim);
}

@media (max-width: 1080px) {
  .slot-card,
  .summary-band .result-card,
  .result-card {
    grid-column: span 6;
  }
}

@media (max-width: 760px) {
  .app-shell {
    width: min(100vw - 20px, 100%);
    padding: 16px 0 28px;
  }

  .hero,
  .panel {
    padding: 16px;
  }

  .control-grid,
  .slot-grid,
  .result-band,
  .summary-row,
  .stack-row {
    grid-template-columns: 1fr;
  }

  .slot-card,
  .summary-band .result-card,
  .result-card {
    grid-column: span 1;
  }

  .section-heading,
  .card-heading {
    align-items: start;
    grid-template-columns: 1fr;
  }

  .summary-row span:last-child,
  .stack-row span:last-child {
    text-align: left;
  }
}