/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; }

:root {
  --felt: #2a7a4b;
  --felt-dark: #1b5232;
  --felt-light: #35a362;
  --card-w: 72px;
  --card-h: 100px;
  --card-radius: 8px;
  --pile-gap: 8px;
  --tableau-offset: 22px;
  --toolbar-h: 56px;

  /* Card theme vars (overridden per theme) */
  --card-bg: #ffffff;
  --card-border: #c8c8c8;
  --card-back-a: #1a3a8f;
  --card-back-b: #0d1f52;
  --card-back-pattern: repeating-linear-gradient(
    45deg,
    rgba(255,255,255,0.07) 0px,
    rgba(255,255,255,0.07) 2px,
    transparent 2px,
    transparent 8px
  );
  --red: #d0021b;
  --black: #111111;
  --shadow-card: 0 2px 8px rgba(0,0,0,0.32);
  --shadow-lift: 0 8px 24px rgba(0,0,0,0.45);
}

/* ── Themes ── */
body.theme-classic {
  --card-back-a: #1a3a8f;
  --card-back-b: #0d1f52;
}
body.theme-midnight {
  --card-bg: #1e1e2e;
  --card-border: #444466;
  --card-back-a: #2d1b69;
  --card-back-b: #11052c;
  --red: #ff6b9d;
  --black: #cdd6f4;
}
body.theme-forest {
  --card-bg: #f5f0e8;
  --card-border: #a89070;
  --card-back-a: #2d5a27;
  --card-back-b: #1a3317;
  --red: #8b2020;
  --black: #1a2e1a;
}
body.theme-rose {
  --card-bg: #fff8f8;
  --card-border: #e8c0c0;
  --card-back-a: #8b1a4a;
  --card-back-b: #4a0a26;
  --red: #c0392b;
  --black: #2c1a2e;
}
body.theme-ocean {
  --card-bg: #f0f8ff;
  --card-border: #90b8d8;
  --card-back-a: #003366;
  --card-back-b: #001833;
  --red: #c0392b;
  --black: #003366;
}

html, body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: radial-gradient(ellipse at top, var(--felt-light), var(--felt-dark) 70%);
  color: #fff;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  overflow-x: hidden;
}

/* ── Layout ── */
.game {
  max-width: 900px;
  margin: 0 auto;
  padding: 8px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ── Toolbar ── */
.toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 4px;
  height: var(--toolbar-h);
}

.toolbar__title {
  margin: 0;
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  text-shadow: 0 1px 3px rgba(0,0,0,0.4);
  flex-shrink: 0;
}

.toolbar__stats {
  display: flex;
  gap: 10px;
  font-size: 0.8rem;
  font-weight: 600;
  opacity: 0.9;
  flex: 1;
  justify-content: center;
}

.stat {
  background: rgba(0,0,0,0.2);
  padding: 4px 10px;
  border-radius: 20px;
  white-space: nowrap;
}

.toolbar__actions {
  display: flex;
  gap: 6px;
  align-items: center;
  flex-shrink: 0;
}

/* ── Buttons ── */
.btn {
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 700;
  font-size: 0.85rem;
  transition: transform 0.1s, box-shadow 0.1s, background 0.15s;
  outline: none;
  -webkit-tap-highlight-color: transparent;
}
.btn:active { transform: scale(0.95); }

.btn--primary {
  background: rgba(255,255,255,0.92);
  color: var(--felt-dark);
  padding: 8px 14px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.25);
}
.btn--primary:hover { background: #fff; box-shadow: 0 4px 12px rgba(0,0,0,0.3); }

.btn--secondary {
  background: rgba(255,255,255,0.18);
  color: #fff;
  border: 1.5px solid rgba(255,255,255,0.4);
  padding: 8px 14px;
}
.btn--secondary:hover { background: rgba(255,255,255,0.28); }

.btn--danger {
  background: rgba(200,40,40,0.85);
  color: #fff;
  padding: 8px 16px;
  margin-top: 12px;
  width: 100%;
}
.btn--danger:hover { background: rgba(220,30,30,0.95); }

.btn--lg { padding: 13px 28px; font-size: 1rem; border-radius: 12px; }

.btn--icon {
  background: rgba(255,255,255,0.15);
  color: #fff;
  border: 1.5px solid rgba(255,255,255,0.3);
  border-radius: 8px;
  padding: 6px;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.btn--icon svg { width: 18px; height: 18px; }
.btn--icon:hover { background: rgba(255,255,255,0.25); }

/* ── Top Row ── */
.top-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--pile-gap);
  margin-bottom: var(--pile-gap);
}

.deck-area {
  display: flex;
  gap: var(--pile-gap);
}

.foundations {
  display: flex;
  gap: var(--pile-gap);
}

/* ── Tableau ── */
.tableau {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: var(--pile-gap);
  flex: 1;
}

/* ── Pile ── */
.pile {
  width: var(--card-w);
  min-height: var(--card-h);
  border: 2px dashed rgba(255,255,255,0.3);
  border-radius: var(--card-radius);
  position: relative;
  flex-shrink: 0;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.pile--highlight {
  border-color: #ffe08a;
  border-style: solid;
  box-shadow: 0 0 14px rgba(255,224,138,0.7);
}

.pile--stock {
  cursor: pointer;
}

.pile--stock::after {
  content: "↺";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  opacity: 0.3;
  pointer-events: none;
}

.pile--stock:has(.card)::after { display: none; }

.tableau-pile {
  min-height: calc(var(--card-h) + var(--tableau-offset) * 12);
}

/* ── Cards ── */
.card {
  width: var(--card-w);
  height: var(--card-h);
  border-radius: var(--card-radius);
  border: 1.5px solid var(--card-border);
  background: var(--card-bg);
  position: absolute;
  left: 0;
  user-select: none;
  cursor: grab;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 4px 5px;
  font-size: 0.78rem;
  font-weight: 800;
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.15s, transform 0.15s;
  -webkit-user-select: none;
  touch-action: none;
}

.card:active { cursor: grabbing; }

.card .corner-top {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1;
  gap: 1px;
}

.card .corner-bot {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  transform: rotate(180deg);
  line-height: 1;
  gap: 1px;
}

.card .rank { font-size: 0.85rem; line-height: 1; }
.card .suit-small { font-size: 0.7rem; line-height: 1; }

.card .center-suit {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  opacity: 0.12;
  pointer-events: none;
}

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

.card.face-down {
  background: linear-gradient(135deg, var(--card-back-a), var(--card-back-b));
  border-color: rgba(0,0,0,0.5);
  cursor: default;
  overflow: hidden;
}

.card.face-down::after {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: calc(var(--card-radius) - 3px);
  border: 1.5px solid rgba(255,255,255,0.2);
  background: var(--card-back-pattern);
}

.card.dragging {
  box-shadow: var(--shadow-lift);
  opacity: 0.85;
  z-index: 1000;
}

.card.touch-dragging {
  position: fixed;
  z-index: 9999;
  box-shadow: var(--shadow-lift);
  opacity: 0.9;
  pointer-events: none;
  transform: rotate(2deg) scale(1.04);
}

.tableau-card {
  position: absolute;
}

/* ── Foundation placeholder suits ── */
.pile.foundation-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  opacity: 0.35;
}

/* ── Modals ── */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.65);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 500;
  backdrop-filter: blur(4px);
  padding: 16px;
  animation: fadeIn 0.2s ease;
}

.modal-backdrop[hidden] { display: none; }

.modal {
  background: #fff;
  color: #1a1a2e;
  border-radius: 20px;
  padding: 24px;
  width: 100%;
  max-width: 400px;
  max-height: 85vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
  animation: slideUp 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.modal__header h2 {
  margin: 0;
  font-size: 1.3rem;
  font-weight: 800;
}

.modal__close {
  background: #f0f0f0;
  border: none;
  color: #444;
  border-radius: 8px;
  padding: 6px;
  width: 32px;
  height: 32px;
}
.modal__close svg { width: 16px; height: 16px; }
.modal__close:hover { background: #e0e0e0; }

.modal__actions {
  display: flex;
  gap: 10px;
  margin-top: 24px;
  flex-wrap: wrap;
}
.modal__actions .btn { flex: 1; text-align: center; }

/* ── Celebration modal ── */
.modal--celebration {
  text-align: center;
  overflow: hidden;
}
.modal--lose { text-align: center; }

.celebration__icon { font-size: 3.5rem; margin-bottom: 8px; }

.celebration__title {
  margin: 0 0 20px;
  font-size: 2rem;
  font-weight: 900;
  background: linear-gradient(135deg, #f7b731, #e0550a);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.modal--lose .celebration__title {
  background: linear-gradient(135deg, #667eea, #764ba2);
  -webkit-background-clip: text;
  background-clip: text;
}

.lose__message {
  color: #666;
  margin: 0 0 8px;
  font-size: 0.95rem;
}

.celebration__stats {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 4px;
}

.cel-stat {
  background: #f5f5f5;
  border-radius: 12px;
  padding: 12px 16px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.cel-stat__label { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.5px; color: #888; font-weight: 700; }
.cel-stat__value { font-size: 1.2rem; font-weight: 900; color: #1a1a2e; }

.modal--celebration .btn--primary {
  background: linear-gradient(135deg, #f7b731, #e0550a);
  color: #fff;
  box-shadow: 0 4px 16px rgba(224,85,10,0.4);
}
.modal--celebration .btn--secondary {
  background: #f0f0f0;
  color: #333;
  border: none;
}

/* ── Theme Grid ── */
.theme-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.theme-option {
  border: 2.5px solid transparent;
  border-radius: 14px;
  padding: 14px 12px;
  cursor: pointer;
  transition: border-color 0.15s, transform 0.15s;
  background: #f8f8f8;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.theme-option:hover { transform: scale(1.02); }
.theme-option.active { border-color: #2a7a4b; }
.theme-option__preview {
  display: flex;
  gap: 5px;
}
.theme-mini-card {
  width: 28px;
  height: 38px;
  border-radius: 5px;
  border: 1.5px solid;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 800;
}
.theme-mini-back {
  width: 28px;
  height: 38px;
  border-radius: 5px;
  border: 1.5px solid rgba(0,0,0,0.2);
}
.theme-option__name {
  font-size: 0.82rem;
  font-weight: 700;
  color: #333;
}

/* ── Leaderboard ── */
.leaderboard { display: flex; flex-direction: column; gap: 8px; }

.leaderboard-empty {
  text-align: center;
  color: #888;
  padding: 32px 0;
  font-size: 0.95rem;
}

.lb-row {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #f8f8f8;
  border-radius: 12px;
  padding: 12px 14px;
}
.lb-row:first-child { background: #fff8e1; }
.lb-row:nth-child(2) { background: #f5f5f5; }
.lb-row:nth-child(3) { background: #fff3e0; }

.lb-rank {
  font-size: 1.1rem;
  min-width: 28px;
  font-weight: 900;
  color: #999;
}
.lb-row:first-child .lb-rank { color: #f39c12; }
.lb-row:nth-child(2) .lb-rank { color: #888; }
.lb-row:nth-child(3) .lb-rank { color: #cd7f32; }

.lb-info { flex: 1; }
.lb-date { font-size: 0.75rem; color: #999; }
.lb-time { font-size: 0.85rem; font-weight: 700; color: #333; }
.lb-moves { font-size: 0.8rem; color: #666; }
.lb-score { font-size: 1.1rem; font-weight: 900; color: #2a7a4b; }

/* ── Confetti canvas ── */
#confetti-canvas {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 490;
  display: none;
}
#confetti-canvas.active { display: block; }

/* ── Animations ── */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { transform: translateY(40px) scale(0.95); opacity: 0; }
  to { transform: translateY(0) scale(1); opacity: 1; }
}

@keyframes flipIn {
  from { transform: rotateY(90deg); opacity: 0; }
  to { transform: rotateY(0deg); opacity: 1; }
}

.card.flip-in { animation: flipIn 0.2s ease; }

/* ── Responsive: shrink cards on small screens ── */
@media (max-width: 520px) {
  :root {
    --card-w: 44px;
    --card-h: 62px;
    --card-radius: 6px;
    --pile-gap: 5px;
    --tableau-offset: 16px;
  }
  .toolbar__title { font-size: 1.1rem; }
  .toolbar__stats { display: none; }
  .card { padding: 2px 3px; font-size: 0.6rem; }
  .card .rank { font-size: 0.65rem; }
  .card .suit-small { font-size: 0.5rem; }
  .card .center-suit { font-size: 1rem; }
  .card.face-down::after { inset: 3px; }
  .btn--primary { padding: 7px 10px; font-size: 0.78rem; }
  .pile--stock::after { font-size: 1.2rem; }
}

@media (max-width: 380px) {
  :root {
    --card-w: 38px;
    --card-h: 54px;
    --pile-gap: 4px;
    --tableau-offset: 14px;
  }
  .toolbar { gap: 4px; }
  .btn--icon { width: 32px; height: 32px; }
  .btn--icon svg { width: 15px; height: 15px; }
}

@media (min-width: 521px) and (max-width: 720px) {
  :root {
    --card-w: 58px;
    --card-h: 80px;
    --card-radius: 7px;
    --pile-gap: 6px;
    --tableau-offset: 20px;
  }
}

@media (min-width: 721px) {
  :root {
    --card-w: 80px;
    --card-h: 110px;
    --tableau-offset: 26px;
  }
}

@media (min-width: 900px) {
  :root {
    --card-w: 92px;
    --card-h: 126px;
    --tableau-offset: 30px;
    --pile-gap: 10px;
  }
  .game { padding: 16px 20px; }
  .tableau-pile {
    min-height: calc(var(--card-h) + var(--tableau-offset) * 14);
  }
}