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

:root {
  --felt: #1b5e3b;
  --felt-dark: #144d30;
  --felt-light: #216b44;
  --card-w: 82px;
  --card-h: 115px;
  --card-r: 8px;
  --gold: #f0c040;
  --gold-dark: #c89a10;
  --cream: #fffbf0;
  --text-dark: #1a1a1a;
  --text-light: #f0ede0;
  --red: #c0392b;
  --shadow: 0 2px 8px rgba(0,0,0,0.35);
  --gap: 10px;
}

html { font-size: 16px; }

body {
  font-family: 'Inter', 'Segoe UI', Arial, sans-serif;
  background: var(--felt);
  background-image:
    radial-gradient(ellipse at 50% 0%, var(--felt-light) 0%, var(--felt-dark) 100%);
  min-height: 100vh;
  color: var(--text-light);
  user-select: none;
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  background: rgba(0,0,0,0.35);
  border-bottom: 2px solid rgba(240,192,64,0.3);
  backdrop-filter: blur(4px);
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 10px 0;
}

.header-inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 16px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.logo-suit {
  font-size: 28px;
  color: var(--gold);
}

.logo h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--cream);
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.logo-accent {
  color: var(--gold);
}

.header-controls {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.stats-bar {
  display: flex;
  gap: 12px;
  margin-left: auto;
}

.stat-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: rgba(0,0,0,0.25);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 6px;
  padding: 4px 14px;
  min-width: 60px;
}

.stat-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: rgba(240,237,224,0.6);
  font-weight: 600;
}

.stat-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gold);
  line-height: 1.2;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  border: none;
  border-radius: 6px;
  padding: 8px 18px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.1s, box-shadow 0.1s, background 0.15s;
  font-family: inherit;
  letter-spacing: 0.2px;
}

.btn:active { transform: scale(0.96); }

.btn-primary {
  background: var(--gold);
  color: #1a1a1a;
  box-shadow: 0 2px 6px rgba(240,192,64,0.4);
}
.btn-primary:hover { background: #f5cc50; box-shadow: 0 4px 12px rgba(240,192,64,0.5); }

.btn-secondary {
  background: rgba(255,255,255,0.12);
  color: var(--cream);
  border: 1px solid rgba(255,255,255,0.2);
}
.btn-secondary:hover { background: rgba(255,255,255,0.2); }

.btn-large {
  padding: 14px 40px;
  font-size: 1.15rem;
  border-radius: 8px;
}

/* ============================================================
   GAME AREA
   ============================================================ */
.game-area {
  max-width: 900px;
  margin: 0 auto;
  padding: 16px 12px;
}

/* Top row */
.top-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 16px;
  gap: var(--gap);
}

.top-left, .top-right {
  display: flex;
  gap: var(--gap);
  align-items: flex-start;
}

/* ============================================================
   PILES (generic)
   ============================================================ */
.pile {
  width: var(--card-w);
  height: var(--card-h);
  border-radius: var(--card-r);
  border: 2px dashed rgba(255,255,255,0.2);
  background: rgba(0,0,0,0.15);
  position: relative;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.pile-label {
  font-size: 1.6rem;
  opacity: 0.35;
  pointer-events: none;
}

/* Stock pile */
.stock-pile { cursor: pointer; }

/* Recycle icon when stock is empty */
.stock-pile .recycle-hint {
  font-size: 2rem;
  color: rgba(255,255,255,0.4);
}

/* Foundation placeholder text */
.foundation-pile .pile-label {
  font-size: 1.8rem;
  opacity: 0.3;
}

/* ============================================================
   CARDS
   ============================================================ */
.card {
  width: var(--card-w);
  height: var(--card-h);
  border-radius: var(--card-r);
  position: relative;
  cursor: pointer;
  flex-shrink: 0;
  transition: box-shadow 0.12s, transform 0.12s;
}

/* Face-down card (deck back) */
.card-back {
  background:
    repeating-linear-gradient(
      45deg,
      #1a3a6b,
      #1a3a6b 4px,
      #1e4488 4px,
      #1e4488 8px
    );
  border: 2px solid #2a4a8b;
  box-shadow: var(--shadow);
}

.card-back::after {
  content: '';
  position: absolute;
  inset: 6px;
  border-radius: 4px;
  border: 2px solid rgba(255,255,255,0.15);
}

/* Face-up card */
.card-face {
  background: var(--cream);
  border: 1px solid #c8c0a0;
  box-shadow: var(--shadow);
  display: grid;
  grid-template-rows: auto 1fr auto;
  padding: 5px;
  overflow: hidden;
}

.card-face:hover { box-shadow: 0 4px 14px rgba(0,0,0,0.4); }

/* Card colors */
.card-red .card-corner-rank,
.card-red .card-corner-suit,
.card-red .card-center { color: var(--red); }

.card-black .card-corner-rank,
.card-black .card-corner-suit,
.card-black .card-center { color: #111111; }

/* Corners */
.card-corner {
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1;
}

.card-corner-tl { align-self: start; justify-self: start; }
.card-corner-br {
  align-self: end;
  justify-self: end;
  transform: rotate(180deg);
}

.card-corner-rank {
  font-size: 1.05rem;
  font-weight: 700;
  font-family: Georgia, serif;
  line-height: 1;
}

.card-corner-suit {
  font-size: 0.8rem;
  line-height: 1;
}

/* Center suit */
.card-center {
  font-size: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

/* Selected state */
.card-selected {
  box-shadow:
    0 0 0 3px var(--gold),
    0 0 12px rgba(240,192,64,0.6),
    0 4px 12px rgba(0,0,0,0.4);
  transform: translateY(-3px);
  z-index: 10;
}

/* ============================================================
   TABLEAU
   ============================================================ */
.tableau-area {
  display: flex;
  gap: var(--gap);
  align-items: flex-start;
  justify-content: space-between;
}

.tableau-col {
  width: var(--card-w);
  min-height: var(--card-h);
  position: relative;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  border-radius: var(--card-r);
  /* Click target for empty column */
  cursor: pointer;
}

/* Empty column hint */
.tableau-col.empty-col {
  border: 2px dashed rgba(255,255,255,0.18);
  background: rgba(0,0,0,0.1);
}

/* Cards in tableau stack with overlap */
.tableau-col .card:not(:first-child) {
  margin-top: var(--stack-offset, -78px);
}

/* ============================================================
   WIN OVERLAY
   ============================================================ */
.win-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.65);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  backdrop-filter: blur(6px);
}

.win-overlay.hidden { display: none; }

.win-box {
  background: var(--cream);
  color: var(--text-dark);
  border-radius: 16px;
  padding: 48px 56px;
  text-align: center;
  box-shadow: 0 24px 60px rgba(0,0,0,0.5);
  animation: win-pop 0.4s cubic-bezier(0.34,1.56,0.64,1);
}

@keyframes win-pop {
  from { transform: scale(0.7); opacity: 0; }
  to   { transform: scale(1);   opacity: 1; }
}

.win-suits {
  font-size: 2.5rem;
  margin-bottom: 10px;
  letter-spacing: 6px;
}

.win-box h2 {
  font-size: 2.6rem;
  font-weight: 700;
  color: var(--felt-dark);
  margin-bottom: 14px;
}

.win-score, .win-time {
  font-size: 1.15rem;
  margin-bottom: 6px;
  color: #444;
}

.win-box .btn-primary { margin-top: 24px; }

/* ============================================================
   HOW TO PLAY
   ============================================================ */
.how-to-play {
  background: rgba(0,0,0,0.2);
  border-top: 1px solid rgba(255,255,255,0.08);
  margin-top: 24px;
  padding: 40px 16px;
}

.how-inner {
  max-width: 900px;
  margin: 0 auto;
}

.how-to-play h2 {
  font-size: 1.5rem;
  color: var(--gold);
  margin-bottom: 24px;
  text-align: center;
  letter-spacing: 0.5px;
}

.rules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.rule-card {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  padding: 20px;
}

.rule-icon {
  font-size: 1.8rem;
  margin-bottom: 8px;
}

.rule-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 8px;
}

.rule-card p {
  font-size: 0.92rem;
  line-height: 1.6;
  color: rgba(240,237,224,0.85);
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: rgba(0,0,0,0.3);
  border-top: 1px solid rgba(255,255,255,0.06);
  text-align: center;
  padding: 16px;
  font-size: 0.82rem;
  color: rgba(240,237,224,0.45);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 750px) {
  :root {
    --card-w: 64px;
    --card-h: 90px;
    --card-r: 6px;
    --gap: 6px;
  }
  .card-center { font-size: 1.5rem; }
  .card-corner-rank { font-size: 0.85rem; }
  .logo h1 { font-size: 1.1rem; }
  .stats-bar { gap: 6px; }
  .stat-box { padding: 3px 8px; min-width: 48px; }
  .stat-value { font-size: 1rem; }
  .btn { padding: 6px 12px; font-size: 0.85rem; }
}

@media (max-width: 520px) {
  :root {
    --card-w: 52px;
    --card-h: 74px;
    --card-r: 5px;
    --gap: 4px;
  }
  .card-center { font-size: 1.1rem; }
  .card-corner-rank { font-size: 0.72rem; }
  .card-corner-suit { font-size: 0.65rem; }
  .header-inner { gap: 8px; }
  .logo h1 { display: none; }
}

/* ============================================================
   HINT TOAST
   ============================================================ */
.hint-toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.78);
  color: var(--cream);
  padding: 10px 26px;
  border-radius: 20px;
  font-size: 0.92rem;
  font-weight: 600;
  z-index: 600;
  pointer-events: none;
  white-space: nowrap;
}
.hint-toast.hidden { display: none; }

/* ============================================================
   HINT ANIMATIONS
   ============================================================ */
@keyframes hint-card-pulse {
  0%, 100% {
    box-shadow: 0 0 0 3px var(--gold), 0 2px 8px rgba(0,0,0,0.35);
    transform: translateY(0);
  }
  50% {
    box-shadow: 0 0 0 4px var(--gold), 0 0 22px rgba(240,192,64,0.9);
    transform: translateY(-5px);
  }
}

.card-hint {
  animation: hint-card-pulse 0.65s ease-in-out 3;
  position: relative;
  z-index: 15 !important;
}

@keyframes hint-pile-pulse {
  0%, 100% { box-shadow: none; }
  50%       { box-shadow: 0 0 0 3px rgba(240,192,64,0.85), 0 0 18px rgba(240,192,64,0.45); }
}

.pile-hint {
  animation: hint-pile-pulse 0.65s ease-in-out 3;
}

/* ============================================================
   MODAL OVERLAY & BOX
   ============================================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 900;
  backdrop-filter: blur(4px);
  padding: 16px;
}
.modal-overlay.hidden { display: none; }

.modal-box {
  background: #1a3826;
  border: 1px solid rgba(240,192,64,0.3);
  border-radius: 14px;
  width: 100%;
  max-width: 520px;
  max-height: 88vh;
  overflow-y: auto;
  box-shadow: 0 24px 60px rgba(0,0,0,0.65);
  color: var(--text-light);
  animation: win-pop 0.25s cubic-bezier(0.34,1.56,0.64,1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px 0;
}

.modal-header h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gold);
}

.modal-close {
  background: none;
  border: none;
  color: rgba(240,237,224,0.55);
  font-size: 1.7rem;
  line-height: 1;
  cursor: pointer;
  padding: 0 4px;
  transition: color 0.15s;
}
.modal-close:hover { color: var(--cream); }

/* ---- Tabs ---- */
.modal-tabs {
  display: flex;
  padding: 12px 20px 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  gap: 0;
}

.modal-tab {
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  color: rgba(240,237,224,0.5);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  padding: 6px 14px 8px;
  font-family: inherit;
  transition: color 0.15s, border-color 0.15s;
  letter-spacing: 0.2px;
}
.modal-tab:hover    { color: var(--cream); }
.modal-tab.active   { color: var(--gold); border-bottom-color: var(--gold); }

.modal-tab-panel        { padding: 20px; }
.modal-tab-panel.hidden { display: none; }

/* ---- Settings tab ---- */
.option-group  { margin-bottom: 4px; }

.option-label {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.9px;
  color: rgba(240,237,224,0.5);
  font-weight: 600;
  margin-bottom: 10px;
}

.toggle-group {
  display: flex;
  width: fit-content;
  border-radius: 7px;
  overflow: hidden;
}

.toggle-btn {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.15);
  color: rgba(240,237,224,0.6);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  padding: 8px 22px;
  font-family: inherit;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.toggle-btn:first-child { border-radius: 7px 0 0 7px; border-right: none; }
.toggle-btn:last-child  { border-radius: 0 7px 7px 0; }
.toggle-btn.active      { background: var(--gold); color: #1a1a1a; border-color: var(--gold); }
.toggle-btn:not(.active):hover { background: rgba(255,255,255,0.14); }

.option-note {
  font-size: 0.78rem;
  color: rgba(240,237,224,0.4);
  margin-top: 10px;
  line-height: 1.5;
}

/* ---- Instructions tab ---- */
.instr-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.instr-item {
  background: rgba(255,255,255,0.05);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 0.88rem;
  line-height: 1.55;
  color: rgba(240,237,224,0.82);
  display: flex;
  gap: 10px;
  align-items: baseline;
}

.instr-key {
  color: var(--gold);
  font-weight: 700;
  font-size: 0.8rem;
  white-space: nowrap;
  flex-shrink: 0;
  min-width: 76px;
}

/* ---- Statistics tab ---- */
.stat-rows {
  display: flex;
  flex-direction: column;
  gap: 3px;
  margin-bottom: 18px;
}

.stat-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  background: rgba(255,255,255,0.05);
  border-radius: 7px;
}

.stat-row-key {
  font-size: 0.9rem;
  color: rgba(240,237,224,0.68);
}

.stat-row-val {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--gold);
}

.btn-sm {
  padding: 6px 16px;
  font-size: 0.84rem;
  border-radius: 6px;
}