/* ===== Reset & Base ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #0f172a;
  --surface: #1e293b;
  --surface-2: #273449;
  --border: #334155;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --accent-blue: #38bdf8;
  --accent-green: #4ade80;
  --accent-yellow: #facc15;
  --accent-red: #f87171;
  --accent-orange: #fb923c;
  --accent-purple: #c084fc;
  --card-face: #f8fafc;
  --card-face-dim: #cbd5e1;
  --card-ink-black: #0f172a;
  --card-ink-red: #dc2626;
  --radius: 12px;

  /* Harmonize Pico with the existing palette */
  --pico-background-color: var(--bg);
  --pico-color: var(--text);
  --pico-muted-color: var(--text-muted);
  --pico-h1-color: var(--text);
  --pico-h2-color: var(--text);
  --pico-h3-color: var(--text);
  --pico-primary: var(--accent-blue);
  --pico-primary-hover: var(--accent-blue);
  --pico-primary-focus: rgba(56, 189, 248, 0.25);
  --pico-card-background-color: var(--surface);
  --pico-card-border-color: var(--border);
  --pico-border-color: var(--border);
  --pico-border-radius: var(--radius);
  --pico-form-element-background-color: var(--surface);
  --pico-form-element-border-color: var(--border);
  --pico-form-element-color: var(--text);
  --pico-form-element-focus-color: var(--accent-blue);
}

html { font-size: 16px; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  text-align: center;
  padding: 2rem 1rem 1rem;
}

header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.subtitle {
  color: var(--text-muted);
  margin-top: 0.25rem;
  font-size: 0.9rem;
}

main {
  flex: 1;
  max-width: 960px;
  width: 100%;
  margin: 0 auto;
  padding: 0 1rem 2rem;
}

/* ===== Selection Summary ===== */
.selections {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

.selection-group {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
}

.selection-group__label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
  font-weight: 600;
}

.selection-group__label span {
  color: var(--text);
}

.selection-display {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  min-height: 82px;
  align-items: center;
}

.selection-empty {
  color: var(--text-muted);
  font-size: 0.85rem;
  font-style: italic;
}

/* ===== Card styling (big display cards) ===== */
.card-big {
  width: 54px;
  height: 78px;
  border-radius: 8px;
  background: var(--card-face);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  box-shadow: 0 4px 8px rgba(0,0,0,0.35);
  border: 2px solid transparent;
  position: relative;
  user-select: none;
}

.card-big .card-big__rank {
  font-size: 1.5rem;
  line-height: 1;
}

.card-big .card-big__suit {
  font-size: 1.15rem;
  line-height: 1;
  margin-top: 0.15rem;
}

.card-big--red { color: var(--card-ink-red); }
.card-big--black { color: var(--card-ink-black); }

.card-big--hand {
  border-color: var(--accent-green);
  background: #bbf7d0;
  box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.45), 0 4px 8px rgba(0,0,0,0.4);
}
.card-big--board {
  border-color: var(--accent-blue);
  background: #bae6fd;
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.45), 0 4px 8px rgba(0,0,0,0.4);
}

/* ===== Controls ===== */
.controls {
  display: flex;
  gap: 1rem;
  align-items: center;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.control {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.5rem 0.9rem;
}

.control__label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.control__input {
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.25rem 0.5rem;
  font-size: 0.9rem;
  cursor: pointer;
}

.control__button {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.55rem 1rem;
  font-size: 0.9rem;
  cursor: pointer;
  font-weight: 600;
  transition: background 0.15s, border-color 0.15s;
  width: auto;
  margin: 0;
}

.control__button:hover {
  background: var(--surface-2);
  border-color: var(--accent-red);
  color: var(--accent-red);
}

/* Share variant — a non-destructive accent so it reads differently from
   "Clear All". */
.control__button--share:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

.control__button--copied {
  border-color: var(--accent-green) !important;
  color: var(--accent-green) !important;
}

/* ===== Result ===== */
.result {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}

.result__prompt {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.95rem;
  padding: 2rem 0;
}

.result__content {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.5rem;
  align-items: center;
}

.result__ring-wrap {
  position: relative;
  width: 120px;
  height: 120px;
  --tier: var(--accent-green);
}

.result__ring-wrap[data-tier="green"]  { --tier: var(--accent-green); }
.result__ring-wrap[data-tier="yellow"] { --tier: var(--accent-yellow); }
.result__ring-wrap[data-tier="red"]    { --tier: var(--accent-red); }
.result__ring-wrap[data-tier="purple"] { --tier: var(--accent-purple); }

.result__ring {
  width: 120px;
  height: 120px;
  transform: rotate(-90deg);
}

.result__ring-bg {
  fill: none;
  stroke: var(--border);
  stroke-width: 10;
}

.result__ring-fg {
  fill: none;
  stroke: var(--tier);
  stroke-width: 10;
  stroke-linecap: round;
  stroke-dasharray: 326.73;
  stroke-dashoffset: 326.73;
  transition: stroke-dashoffset 0.4s ease, stroke 0.3s ease;
}

.result__percent {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--tier);
  transition: color 0.3s ease;
}

.result__spinner:not([hidden]) {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(30, 41, 59, 0.75);
  border-radius: 50%;
}

.result__spinner::after {
  content: "";
  width: 36px;
  height: 36px;
  border: 3px solid var(--border);
  border-top-color: var(--accent-blue);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.result__details {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.result__row {
  display: flex;
  justify-content: space-between;
  font-size: 0.95rem;
  gap: 0.75rem;
}

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

.result__value {
  font-weight: 600;
  text-align: right;
}

.result__value--win { color: var(--accent-green); }
.result__value--tie { color: var(--accent-orange); }

/* ===== Threats ===== */
.threats {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}

.threats__title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.threats__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 0;
  margin: 0;
}

.threat {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 1rem;
  align-items: baseline;
  padding: 0.5rem 0.75rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent-red);
  border-radius: 8px;
  font-size: 0.9rem;
}

.threat__category {
  font-weight: 600;
  color: var(--text);
}

.threat__combos {
  color: var(--text-muted);
  font-size: 0.8rem;
  font-variant-numeric: tabular-nums;
}

.threat__pct {
  color: var(--accent-red);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  min-width: 4em;
  text-align: right;
}

@media (max-width: 480px) {
  .threat {
    grid-template-columns: 1fr auto;
  }
  .threat__combos { grid-column: 1 / -1; }
}

/* ===== Picker ===== */
.picker__legend {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.legend {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.legend__swatch {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  border: 2px solid transparent;
}

.legend--hand  .legend__swatch { border-color: var(--accent-green); }
.legend--board .legend__swatch { border-color: var(--accent-blue); }

.suits {
  display: grid;
  gap: 0.6rem;
}

.suit-row {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem;
}

.suit-row__header {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  font-weight: 700;
}

.suit-row--red .suit-row__header    { color: var(--card-ink-red); }
.suit-row--black .suit-row__header  { color: var(--card-face); }

.suit-row__cards {
  display: grid;
  grid-template-columns: repeat(13, minmax(0, 1fr));
  gap: 0.35rem;
}

/* ===== Mini card buttons in picker ===== */
.mini-card {
  aspect-ratio: 5 / 7;
  background: var(--card-face);
  border-radius: 5px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  cursor: pointer;
  border: 2px solid transparent;
  padding: 2px;
  transition: transform 0.1s, border-color 0.15s, box-shadow 0.15s, background 0.15s;
  user-select: none;
  position: relative;
  margin: 0;
}

.mini-card:hover {
  transform: translateY(-2px);
}

.mini-card--red   { color: var(--card-ink-red); }
.mini-card--black { color: var(--card-ink-black); }

.mini-card__rank {
  font-size: clamp(0.75rem, 2.4vw, 1.05rem);
  line-height: 1;
}

.mini-card__suit {
  font-size: clamp(0.6rem, 1.9vw, 0.85rem);
  line-height: 1;
  margin-top: 1px;
}

.mini-card--hand {
  border-color: var(--accent-green);
  background: #bbf7d0;
  box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.55);
}
.mini-card--board {
  border-color: var(--accent-blue);
  background: #bae6fd;
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.55);
}

.mini-card--shake {
  animation: shake 0.35s;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-4px); }
  75% { transform: translateX(4px); }
}

/* ===== Footer ===== */
footer {
  text-align: center;
  padding: 1.5rem 1rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
}

footer a {
  color: var(--accent-blue);
  text-decoration: none;
}

footer a:hover { text-decoration: underline; }

/* ===== Responsive ===== */
@media (max-width: 640px) {
  .selections { grid-template-columns: 1fr; }
  .result__content { grid-template-columns: 1fr; justify-items: center; text-align: center; }
  .result__details { width: 100%; }
  .card-big { width: 44px; height: 64px; }
  .card-big .card-big__rank { font-size: 1.2rem; }
  .card-big .card-big__suit { font-size: 1rem; }
}

@media (max-width: 480px) {
  header h1 { font-size: 1.35rem; }
  .suit-row__cards { gap: 0.25rem; }
}