:root {
  --bg: #0a0c0c;
  --bg-glow: #18201d;
  --panel: rgba(18, 23, 22, 0.94);
  --panel-strong: rgba(24, 30, 29, 0.98);
  --panel-soft: rgba(27, 34, 32, 0.92);
  --border: rgba(208, 180, 96, 0.24);
  --border-strong: rgba(232, 202, 115, 0.46);
  --text: #f0e4be;
  --muted: #b1a883;
  --accent: #d1ab58;
  --accent-soft: rgba(209, 171, 88, 0.15);
  --danger: #ff7f67;
  --danger-soft: rgba(255, 127, 103, 0.16);
  --green: #8fcb6c;
  --green-soft: rgba(143, 203, 108, 0.16);
  --violet: #a68cff;
  --violet-soft: rgba(166, 140, 255, 0.16);
  --common: rgba(78, 103, 122, 0.22);
  --uncommon: rgba(84, 134, 86, 0.24);
  --rare: rgba(131, 91, 152, 0.26);
  --volatile: rgba(200, 91, 63, 0.18);
  --shadow: 0 18px 48px rgba(0, 0, 0, 0.38);
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background:
    radial-gradient(circle at top, rgba(77, 100, 88, 0.3), transparent 36%),
    linear-gradient(180deg, #111514 0%, #0a0c0c 52%, #080909 100%);
  color: var(--text);
  font-family: "Avenir Next Condensed", "Trebuchet MS", "Segoe UI", sans-serif;
}

.sprite-defs {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
  pointer-events: none;
  opacity: 0;
}

button {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: linear-gradient(180deg, rgba(47, 56, 53, 0.95), rgba(26, 32, 30, 0.98));
  color: var(--text);
  font: inherit;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: border-color 120ms ease, transform 120ms ease, background 120ms ease;
}

button:hover:not(:disabled) {
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

button:disabled {
  cursor: not-allowed;
  color: rgba(240, 228, 190, 0.48);
  border-color: rgba(208, 180, 96, 0.14);
  background: rgba(32, 38, 36, 0.78);
}

.button-danger {
  border-color: rgba(255, 127, 103, 0.28);
  background: linear-gradient(180deg, rgba(74, 31, 27, 0.94), rgba(46, 19, 17, 0.98));
}

.app {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px 16px 44px;
}

.panel {
  margin-bottom: 16px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: linear-gradient(180deg, var(--panel), var(--panel-strong));
  box-shadow: var(--shadow);
}

.hero {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: end;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.74rem;
}

.hero h1,
.panel-heading h2,
.overlay-heading h2 {
  margin: 0;
}

.hero-copy,
.panel-heading p,
.overlay-heading p,
.empty-state,
.message,
.build-card p,
.reference-card p,
.offer-card p {
  margin: 0;
  color: var(--muted);
}

.hero-note {
  display: grid;
  gap: 8px;
  min-width: 240px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(15, 19, 18, 0.72);
  color: var(--muted);
  font-size: 0.92rem;
}

.hud {
  display: grid;
  gap: 16px;
}

.hud-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(108px, 1fr));
  gap: 12px;
}

.metric,
.summary-card,
.lane-card {
  padding: 12px 14px;
  border: 1px solid rgba(208, 180, 96, 0.18);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(18, 23, 22, 0.96), rgba(23, 29, 27, 0.92));
}

.metric-label,
.reference-label {
  display: inline-block;
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.metric strong,
.summary-card strong,
.lane-card strong {
  font-size: 1.05rem;
}

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

.actions button,
.overlay-actions button,
.controls-grid button,
.active-slot {
  padding: 10px 15px;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-height: 34px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 11px;
  border: 1px solid rgba(208, 180, 96, 0.18);
  border-radius: 999px;
  background: rgba(24, 30, 28, 0.9);
  color: var(--text);
  font-size: 0.84rem;
}

.chip--boss {
  border-color: rgba(255, 159, 102, 0.6);
  background: rgba(118, 56, 34, 0.35);
}

.chip--effect {
  border-color: rgba(130, 195, 255, 0.45);
  background: rgba(40, 70, 100, 0.34);
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 780px) minmax(280px, 1fr);
  gap: 16px;
}

.board-panel {
  display: grid;
  gap: 14px;
}

.board-shell {
  position: relative;
  width: min(100%, 780px);
  aspect-ratio: 1 / 1;
  border: 1px solid var(--border);
  border-radius: 22px;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(10, 12, 12, 0.84), rgba(18, 22, 21, 0.96)),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03), transparent 16%);
}

.board-shell::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(180deg, transparent 0%, rgba(255, 255, 255, 0.03) 49%, transparent 51%),
    repeating-linear-gradient(180deg, rgba(255, 255, 255, 0.018), rgba(255, 255, 255, 0.018) 2px, transparent 2px, transparent 5px);
  pointer-events: none;
  mix-blend-mode: soft-light;
}

.arena-canvas {
  position: relative;
  z-index: 0;
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
}

.overlay {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
}

.overlay--visible {
  pointer-events: auto;
}

.overlay-card {
  position: absolute;
  top: 14px;
  right: 14px;
  bottom: 14px;
  width: min(390px, calc(100% - 28px));
  padding: 14px;
  border: 1px solid rgba(208, 180, 96, 0.24);
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(19, 24, 23, 0.96), rgba(28, 34, 33, 0.98));
  box-shadow: 0 16px 42px rgba(0, 0, 0, 0.42);
  overflow: auto;
  backdrop-filter: blur(8px);
  pointer-events: auto;
}

.overlay-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.overlay-tabs button {
  padding: 8px 12px;
  background: rgba(20, 24, 23, 0.92);
}

.overlay-tabs button.is-active {
  border-color: var(--border-strong);
  background: rgba(62, 50, 24, 0.58);
}

.overlay-heading,
.panel-heading {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: start;
  margin-bottom: 14px;
}

.overlay-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: end;
}

.offer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
}

.offer-grid--meta {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.offer-card,
.build-card,
.reference-card {
  display: grid;
  gap: 8px;
  padding: 12px;
  border: 1px solid rgba(208, 180, 96, 0.16);
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(20, 25, 24, 0.96), rgba(28, 34, 33, 0.92));
}

.offer-card--common {
  background: linear-gradient(180deg, rgba(37, 45, 49, 0.92), rgba(28, 34, 33, 0.92));
}

.offer-card--uncommon {
  background: linear-gradient(180deg, rgba(32, 49, 35, 0.94), rgba(28, 34, 33, 0.92));
}

.offer-card--rare {
  background: linear-gradient(180deg, rgba(44, 34, 54, 0.96), rgba(28, 34, 33, 0.92));
}

.offer-card--volatile {
  box-shadow: inset 0 0 0 1px rgba(220, 121, 99, 0.28);
}

.offer-card--owned {
  opacity: 0.74;
}

.offer-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.offer-guidance {
  color: var(--accent);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.offer-icon,
.reference-icon,
.active-slot-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: rgba(10, 12, 12, 0.52);
  border: 1px solid rgba(208, 180, 96, 0.18);
}

.offer-icon svg,
.reference-icon svg,
.active-slot-icon svg {
  width: 28px;
  height: 28px;
}

.offer-pill {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  background: rgba(209, 171, 88, 0.16);
  color: var(--accent);
  font-weight: 700;
}

.message {
  min-height: 24px;
}

.active-panel,
.build-section {
  display: grid;
  gap: 12px;
}

.active-bar,
.mobile-actives {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.active-slot {
  display: grid;
  gap: 6px;
  justify-items: start;
  text-align: left;
}

.active-slot--empty {
  opacity: 0.78;
}

.active-slot-key {
  color: var(--accent);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.ledger-panel {
  display: grid;
  gap: 12px;
}

.lane-summary,
.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 10px;
}

.lane-card,
.summary-card {
  display: grid;
  gap: 6px;
}

.build-list {
  display: grid;
  gap: 12px;
}

.reference-list {
  display: grid;
  gap: 10px;
}

.reference-card {
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
}

.mobile-controls {
  display: none;
}

.controls-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  align-items: center;
}

.controls-center {
  display: grid;
  place-items: center;
  color: var(--muted);
}

@media (max-width: 1040px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .board-shell {
    width: 100%;
  }

  .overlay-card {
    width: min(410px, calc(100% - 28px));
  }
}

@media (max-width: 760px) {
  .hero {
    flex-direction: column;
    align-items: start;
  }

  .hero-note {
    min-width: 0;
    width: 100%;
  }

  .overlay-card {
    inset: auto 10px 10px 10px;
    top: auto;
    width: auto;
    max-height: 58%;
  }

  .mobile-controls {
    display: grid;
    gap: 12px;
  }
}

@media (max-width: 560px) {
  .app {
    padding-inline: 12px;
  }

  .panel {
    padding: 14px;
  }

  .hud-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .active-bar,
  .mobile-actives,
  .offer-grid,
  .offer-grid--meta,
  .summary-grid,
  .lane-summary {
    grid-template-columns: 1fr;
  }

  .overlay-card {
    max-height: 62%;
  }
}