:root {
  color-scheme: dark;
  --bg: #0b1020;
  --bg-soft: rgba(14, 20, 41, 0.86);
  --panel: rgba(10, 16, 34, 0.8);
  --panel-border: rgba(255, 255, 255, 0.1);
  --text: #f4f7fb;
  --muted: #a8b2cc;
  --accent: #7ee0c3;
  --accent-strong: #4fd6ff;
  --warn: #ffd36f;
  --danger: #ff8b8b;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.4);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", system-ui, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(79, 214, 255, 0.18), transparent 34%),
    radial-gradient(circle at top right, rgba(126, 224, 195, 0.12), transparent 28%),
    linear-gradient(160deg, #070b16 0%, #0b1020 45%, #10172c 100%);
}

button,
textarea {
  font: inherit;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.backdrop {
  position: fixed;
  inset: auto;
  pointer-events: none;
  border-radius: 999px;
  filter: blur(18px);
  opacity: 0.9;
}

.backdrop-one {
  width: 26rem;
  height: 26rem;
  background: rgba(79, 214, 255, 0.12);
  top: -7rem;
  left: -5rem;
}

.backdrop-two {
  width: 24rem;
  height: 24rem;
  background: rgba(126, 224, 195, 0.1);
  bottom: -8rem;
  right: -6rem;
}

.shell {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 3rem 0 3.5rem;
  position: relative;
}

.hero {
  display: grid;
  gap: 0.85rem;
  margin-bottom: 1.5rem;
  max-width: 760px;
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.76rem;
  font-weight: 700;
}

h1,
h2 {
  margin: 0;
  font-family: "Fraunces", Georgia, serif;
  letter-spacing: -0.03em;
}

h1 {
  font-size: clamp(2.6rem, 5vw, 5rem);
  line-height: 0.95;
  max-width: 11ch;
}

.lede,
.panel-header p,
.help-row,
.summary-card,
.status-box {
  color: var(--muted);
  line-height: 1.6;
}

.lede {
  margin: 0;
  max-width: 62ch;
  font-size: 1.02rem;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1.2fr);
  gap: 1.2rem;
}

.panel {
  border: 1px solid var(--panel-border);
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(12, 17, 34, 0.96), rgba(10, 14, 27, 0.88));
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.input-panel,
.output-panel {
  padding: 1.3rem;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
}

.panel-header h2 {
  font-size: 1.6rem;
  margin-bottom: 0.3rem;
}

.panel-header p {
  margin: 0;
  font-size: 0.95rem;
}

.input-label {
  display: block;
  margin: 0.5rem 0 0.5rem;
  font-weight: 700;
  color: #dce6ff;
}

.picker-wrap {
  margin-bottom: 0.85rem;
  padding: 0.85rem;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.02);
}

.picker-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.6rem;
  margin-bottom: 0.55rem;
}

.picker-header span {
  font-weight: 700;
  color: #e8efff;
}

.picker-header small {
  color: var(--muted);
  font-size: 0.8rem;
}

.deck-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(74px, 1fr));
  gap: 0.6rem;
}

.card-chip {
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: transparent;
  color: #edf4ff;
  border-radius: 12px;
  padding: 0;
  cursor: pointer;
  min-height: 106px;
  display: flex;
  align-items: stretch;
  justify-content: stretch;
  overflow: hidden;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.22);
}

.card-chip:hover {
  border-color: rgba(79, 214, 255, 0.55);
  transform: translateY(-1px);
}

.card-chip.is-selected {
  border-color: rgba(126, 224, 195, 0.92);
  box-shadow: 0 0 0 2px rgba(126, 224, 195, 0.4), 0 10px 20px rgba(0, 0, 0, 0.3);
}

.selected-cards {
  margin-top: 0.7rem;
  min-height: 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.selected-pill {
  display: inline-flex;
  align-items: center;
  padding: 0;
  border-radius: 999px;
  font-size: 0.78rem;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.05);
  color: #cbfff0;
  font-weight: 700;
  overflow: hidden;
}

.card-face {
  width: 100%;
  height: 100%;
  min-height: 104px;
  padding: 0.42rem;
  display: grid;
  grid-template-rows: auto 1fr auto;
  background: linear-gradient(145deg, #ffffff 0%, #eef3ff 100%);
  color: #151820;
}

.card-face.mini {
  min-height: 42px;
  min-width: 34px;
  width: 34px;
  padding: 0.17rem;
}

.card-face.red {
  color: #c42934;
}

.card-face.black {
  color: #172236;
}

.card-face-corner {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1;
  font-size: 0.96rem;
  font-weight: 800;
}

.card-face-corner b {
  font-size: 0.96rem;
  font-weight: 800;
}

.card-face-corner.invert {
  align-self: end;
  transform: rotate(180deg);
}

.card-face-center {
  align-self: center;
  justify-self: center;
  font-size: 1.45rem;
  line-height: 1;
}

.card-face.mini .card-face-corner {
  font-size: 0.46rem;
}

.card-face.mini .card-face-corner b {
  font-size: 0.46rem;
}

.card-face.mini .card-face-center {
  font-size: 0.72rem;
}

.cards-input {
  width: 100%;
  resize: vertical;
  min-height: 130px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(4, 8, 18, 0.75);
  color: var(--text);
  padding: 1rem 1.05rem;
  outline: none;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.cards-input:focus {
  border-color: rgba(79, 214, 255, 0.6);
  box-shadow: 0 0 0 4px rgba(79, 214, 255, 0.12);
}

.help-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
  margin-top: 0.8rem;
  font-size: 0.92rem;
}

.help-row span {
  color: #dce6ff;
  font-weight: 600;
}

.button-row {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
}

.primary-button,
.ghost-button {
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 0.16s ease, box-shadow 0.16s ease, background 0.16s ease, border-color 0.16s ease;
}

.primary-button {
  padding: 0.88rem 1.2rem;
  color: #051018;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
  box-shadow: 0 18px 36px rgba(79, 214, 255, 0.25);
}

.ghost-button {
  padding: 0.78rem 1rem;
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.primary-button:hover,
.ghost-button:hover {
  transform: translateY(-1px);
}

.primary-button:active,
.ghost-button:active {
  transform: translateY(0);
}

.status-box {
  min-height: 1.2rem;
  margin-top: 0.95rem;
  font-size: 0.95rem;
}

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

.status-box.success {
  color: #91f0cc;
}

.summary-card {
  padding: 1rem 1.05rem;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
  margin-bottom: 1rem;
}

.summary-card.empty-state {
  color: var(--muted);
}

.summary-grid {
  display: grid;
  gap: 0.4rem;
}

.summary-grid strong {
  color: var(--text);
}

.table-wrap {
  overflow: auto;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.results-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 520px;
  background: rgba(5, 8, 18, 0.6);
}

.results-table th,
.results-table td {
  text-align: left;
  padding: 0.95rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  vertical-align: top;
}

.results-table th {
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--muted);
  text-transform: uppercase;
  background: rgba(255, 255, 255, 0.02);
}

.results-table tbody tr:last-child td {
  border-bottom: 0;
}

.empty-row td {
  color: var(--muted);
}

.step-line {
  display: flex;
  gap: 0.7rem;
  align-items: baseline;
}

.step-label {
  color: var(--accent);
  min-width: 7.6rem;
}

.winner-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.25rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: rgba(126, 224, 195, 0.12);
  color: #c9ffee;
  font-weight: 700;
}

@media (max-width: 980px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  .deck-grid {
    grid-template-columns: repeat(auto-fit, minmax(68px, 1fr));
  }

  .card-chip {
    min-height: 98px;
  }

  h1 {
    max-width: 14ch;
  }
}

@media (max-width: 640px) {
  .shell {
    width: min(100% - 1rem, 1180px);
    padding: 1rem 0 1.5rem;
  }

  .input-panel,
  .output-panel {
    padding: 1rem;
  }

  .panel-header {
    flex-direction: column;
  }

  .results-table {
    min-width: 460px;
  }

  .deck-grid {
    grid-template-columns: repeat(auto-fit, minmax(60px, 1fr));
  }

  .card-chip {
    min-height: 90px;
  }

  .card-face {
    min-height: 88px;
  }

  .card-face-corner,
  .card-face-corner b {
    font-size: 0.84rem;
  }

  .card-face-center {
    font-size: 1.2rem;
  }
}