@font-face {
  font-family: "Playfair Display";
  src: url("fonts/PlayfairDisplay-VariableFont_wght.ttf") format("truetype");
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "DM Mono";
  src: url("fonts/DMMono-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  --felt: #0f5132;
  --felt-dark: #0a3d25;
  --felt-light: #167a44;
  --bg: #0f2027;
  --bg2: #1a3a2a;
  --card-w: 72px;
  --card-h: 100px;
  --card-radius: 7px;
  --card-overlap: 28px;
  --card-overlap-hidden: 18px;
  --gold: #c9a84c;
  --gold-light: #e8c96d;
  --text: #e8dcc8;
  --shadow: 0 4px 16px rgba(0,0,0,0.55);
  --pile-border: rgba(255,255,255,0.12);
  --font-display: 'Playfair Display', Georgia, serif;
  --font-mono: 'DM Mono', 'Courier New', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  overflow: hidden;
  overscroll-behavior: none;
  -webkit-tap-highlight-color: transparent;
  touch-action: none;
}

body {
  font-family: var(--font-mono);
  background: radial-gradient(ellipse at top, #1b4332 0%, var(--bg) 70%);
  background-attachment: fixed;
  color: var(--text);
  display: flex;
  flex-direction: column;
  height: 100dvh;
  padding: env(safe-area-inset-top, 0) env(safe-area-inset-right, 0) env(safe-area-inset-bottom, 0) env(safe-area-inset-left, 0);
  user-select: none;
  -webkit-user-select: none;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    repeating-linear-gradient(45deg, transparent, transparent 2px, rgba(0,0,0,0.03) 2px, rgba(0,0,0,0.03) 4px),
    repeating-linear-gradient(-45deg, transparent, transparent 2px, rgba(0,0,0,0.03) 2px, rgba(0,0,0,0.03) 4px);
  pointer-events: none;
  z-index: 0;
}

header {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px 8px;
  background: linear-gradient(180deg, rgba(0,0,0,0.5) 0%, transparent 100%);
  flex-shrink: 0;
  gap: 8px;
}

h1 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.05em;
  white-space: nowrap;
  text-shadow: 0 1px 8px rgba(201,168,76,0.4);
}

#stats {
  display: flex;
  gap: 12px;
  font-size: 0.7rem;
  color: rgba(232,220,200,0.7);
  letter-spacing: 0.04em;
}

#controls {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

button {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 5px 10px;
  background: rgba(201,168,76,0.15);
  color: var(--gold-light);
  border: 1px solid rgba(201,168,76,0.35);
  border-radius: 5px;
  cursor: pointer;
  letter-spacing: 0.03em;
  transition: background 0.15s, border-color 0.15s;
  white-space: nowrap;
  touch-action: manipulation;
}

button:hover, button:active {
  background: rgba(201,168,76,0.28);
  border-color: rgba(201,168,76,0.7);
}

button:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

#game-container {
  position: relative;
  z-index: 1;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 8px 10px 10px;
  overflow: hidden;
}

#top-row {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  flex-shrink: 0;
}

.spacer { flex: 1; }

.pile {
  width: var(--card-w);
  height: var(--card-h);
  border: 2px dashed var(--pile-border);
  border-radius: var(--card-radius);
  position: relative;
  background: rgba(0,0,0,0.18);
  flex-shrink: 0;
  transition: border-color 0.15s, background 0.15s;
}

.pile.drop-target {
  border-color: var(--gold);
  background: rgba(201,168,76,0.1);
  box-shadow: 0 0 0 2px rgba(201,168,76,0.3);
}

.foundation-pile {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: rgba(255,255,255,0.18);
}

.foundation-pile .card:only-child {
  position: absolute;
  inset: 0;
}

#tableau {
  display: flex;
  gap: 6px;
  flex: 1;
  align-items: flex-start;
  min-height: 0;
}

.tableau-pile {
  flex: 1;
  min-width: 0;
  height: auto;
  min-height: var(--card-h);
  border-radius: var(--card-radius);
  position: relative;
}

.card {
  position: absolute;
  width: var(--card-w);
  height: var(--card-h);
  border-radius: var(--card-radius);
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: box-shadow 0.12s, transform 0.12s;
  touch-action: none;
  -webkit-touch-callout: none;
  will-change: transform;
}

.card.face-up {
  background: #fdf8f0;
  border: 1px solid rgba(0,0,0,0.12);
}

.card.face-up:hover {
  box-shadow: 0 6px 22px rgba(0,0,0,0.6);
  transform: translateY(-2px);
}

.card.face-down {
  background:
    repeating-linear-gradient(
      45deg,
      #1a3a5c 0px, #1a3a5c 4px,
      #142d4a 4px, #142d4a 8px
    );
  border: 2px solid rgba(201,168,76,0.4);
  cursor: default;
}

.card.face-down::after {
  content: '';
  position: absolute;
  inset: 4px;
  border: 1px solid rgba(201,168,76,0.25);
  border-radius: calc(var(--card-radius) - 3px);
}

.card-inner {
  position: absolute;
  inset: 0;
  padding: 4px 5px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  pointer-events: none;
}

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

.card-corner.bottom {
  transform: rotate(180deg);
}

.card-rank {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  line-height: 1;
}

.card-suit-small {
  font-size: 0.6rem;
  line-height: 1;
  margin-top: 1px;
}

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

.card.red .card-rank,
.card.red .card-suit-small,
.card.red .card-center { color: #c0392b; }

.card.black .card-rank,
.card.black .card-suit-small,
.card.black .card-center { color: #1a1a1a; }

.card.selected {
  box-shadow: 0 0 0 2.5px var(--gold), 0 6px 22px rgba(0,0,0,0.6);
  transform: translateY(-3px);
}

.card.dragging {
  opacity: 0.4;
  pointer-events: none;
  transform: none !important;
  transition: none;
}

#drag-ghost {
  position: fixed;
  pointer-events: none;
  z-index: 9999;
  top: 0;
  left: 0;
  transform-origin: top left;
}

#drag-ghost.hidden { display: none; }

#drag-ghost .card {
  position: relative !important;
  top: auto !important;
  left: auto !important;
  cursor: grabbing;
  opacity: 1;
  box-shadow: 0 8px 30px rgba(0,0,0,0.7);
  transition: none;
}

.stock-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  font-size: 1.6rem;
  color: rgba(255,255,255,0.25);
  cursor: pointer;
}

#win-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.4s ease;
}

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

#win-card {
  background: linear-gradient(145deg, #1b4332, #0f2027);
  border: 1px solid rgba(201,168,76,0.5);
  border-radius: 16px;
  padding: 40px 48px;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0,0,0,0.8), inset 0 1px 0 rgba(255,255,255,0.07);
  max-width: 320px;
  width: 90%;
}

#win-suits {
  font-size: 2rem;
  letter-spacing: 0.25em;
  margin-bottom: 12px;
  animation: pop 0.5s cubic-bezier(0.34,1.56,0.64,1);
}

#win-card h2 {
  font-family: var(--font-display);
  font-size: 2.2rem;
  color: var(--gold);
  text-shadow: 0 2px 12px rgba(201,168,76,0.5);
  margin-bottom: 10px;
}

#win-stats {
  font-size: 0.8rem;
  color: rgba(232,220,200,0.65);
  margin-bottom: 24px;
  line-height: 1.8;
}

#play-again-btn {
  font-size: 0.9rem;
  padding: 10px 28px;
  background: var(--gold);
  color: #1a1a1a;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  letter-spacing: 0.05em;
}

#play-again-btn:hover {
  background: var(--gold-light);
  border-color: transparent;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes pop {
  0%   { transform: scale(0.5); opacity: 0; }
  100% { transform: scale(1);   opacity: 1; }
}

@keyframes flipIn {
  0%   { transform: rotateY(90deg) scaleX(0.5); opacity: 0; }
  100% { transform: rotateY(0)     scaleX(1);   opacity: 1; }
}

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

@media (max-width: 500px) {
  :root {
    --card-w: calc((100vw - 76px) / 7);
    --card-h: calc(var(--card-w) * 1.4);
    --card-overlap: calc(var(--card-h) * 0.27);
    --card-overlap-hidden: calc(var(--card-h) * 0.18);
  }

  header { padding: 8px 10px 6px; }
  h1 { font-size: 1.1rem; }
  #stats { gap: 8px; font-size: 0.65rem; }
  button { font-size: 0.65rem; padding: 4px 8px; }

  #game-container { padding: 6px 6px 8px; gap: 8px; }
  #top-row { gap: 4px; }
  #tableau { gap: 4px; }

  .card-rank { font-size: 0.78rem; }
  .card-suit-small { font-size: 0.52rem; }
  .card-center { font-size: 1.1rem; }
}

@media (min-width: 700px) {
  :root {
    --card-w: 88px;
    --card-h: 124px;
    --card-overlap: 32px;
    --card-overlap-hidden: 22px;
  }

  h1 { font-size: 1.5rem; }
  #stats { font-size: 0.78rem; }
  button { font-size: 0.75rem; padding: 6px 14px; }
  #game-container { padding: 12px 16px 16px; gap: 14px; }
  #top-row { gap: 10px; }
  #tableau { gap: 10px; }
}

@media (min-width: 1000px) {
  :root {
    --card-w: 100px;
    --card-h: 140px;
    --card-overlap: 36px;
    --card-overlap-hidden: 24px;
  }
}