/* ── Reset & custom properties ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:              #f4efe5;
  --bg-subtle:       #ede6d8;
  --surface:         #fffdf9;
  --surface-alt:     #faf7f0;
  --border:          #d5c9b2;
  --border-light:    #e4ddd0;
  --text:            #1c1208;
  --text-muted:      #786248;
  --text-light:      #a89070;
  --accent:          #c8882a;
  --accent-hover:    #a87020;
  --accent-light:    #fef3dc;
  --slot-empty:      #ede7db;
  --slot-border:     #bfad94;
  --sel-border:      #2563eb;
  --sel-bg:          #eff6ff;
  --correct:         #1d4ed8;
  --correct-bg:      #eff6ff;
  --correct-border:  #2563eb;
  --incorrect:       #b91c1c;
  --incorrect-bg:    #fee2e2;
  --incorrect-border:#dc2626;
  --locked:          #1d4ed8;
  --locked-bg:       #eff6ff;
  --locked-border:   #2563eb;
  --drag-over:       #dbeafe;
  --drag-border:     #3b82f6;
  --shadow-xs:       0 1px 2px rgba(0,0,0,.07);
  --shadow-sm:       0 2px 6px rgba(0,0,0,.10), 0 1px 2px rgba(0,0,0,.06);
  --shadow:          0 4px 14px rgba(0,0,0,.12), 0 2px 4px rgba(0,0,0,.08);
  --shadow-lg:       0 16px 48px rgba(0,0,0,.22), 0 4px 14px rgba(0,0,0,.12);
  --radius:          12px;
  --radius-sm:       8px;
  --radius-xs:       5px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100dvh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ── App shell ──────────────────────────────────────────────────────────── */
.app-shell {
  display: grid;
  grid-template-rows: auto auto 1fr;
  height: 100dvh;
  overflow: hidden;
}

/* ── Header ─────────────────────────────────────────────────────────────── */
.app-header {
  background: linear-gradient(135deg, #2a1803 0%, #180d01 100%);
  padding: 10px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  box-shadow: 0 2px 14px rgba(0,0,0,.35);
  position: relative;
  z-index: 10;
}
.app-header h1 {
  font-size: 1.08rem;
  font-weight: 800;
  white-space: nowrap;
  color: #fff;
  letter-spacing: -.01em;
}
.app-header .subtitle {
  font-size: 0.68rem;
  color: rgba(255,255,255,.48);
  margin-top: 2px;
}
.header-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.stat-pill {
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 20px;
  padding: 4px 13px;
  font-size: 0.78rem;
  font-weight: 700;
  white-space: nowrap;
  color: #fff;
}

/* Progress bar strip at the bottom of the header */
.progress-bar {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: rgba(255,255,255,.1);
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent) 0%, #f0c040 100%);
  transition: width .45s cubic-bezier(.4,0,.2,1);
  border-radius: 0 3px 3px 0;
  min-width: 0;
}

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
  padding: 7px 15px;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.81rem;
  font-weight: 700;
  transition: background .14s, transform .1s, box-shadow .14s;
  white-space: nowrap;
  line-height: 1;
  letter-spacing: .01em;
}
.btn:active:not(:disabled) { transform: translateY(1px); }
.btn:disabled { opacity: .4; cursor: not-allowed; }

.btn-primary {
  background: linear-gradient(135deg, #d4952a, #bb7918);
  color: #fff;
  box-shadow: 0 2px 8px rgba(180,115,0,.4);
}
.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, #e0a030, #cc8820);
  box-shadow: 0 3px 12px rgba(180,115,0,.5);
}
.btn-secondary {
  background: rgba(255,255,255,.13);
  color: rgba(255,255,255,.88);
  border: 1px solid rgba(255,255,255,.22);
}
.btn-secondary:hover:not(:disabled) { background: rgba(255,255,255,.2); }
.btn-ghost {
  background: transparent;
  color: rgba(255,255,255,.55);
  border: 1px solid transparent;
}
.btn-ghost:hover:not(:disabled) {
  background: rgba(255,255,255,.1);
  color: rgba(255,255,255,.85);
}
.btn-sm { padding: 5px 11px; font-size: 0.74rem; }

/* ── Hint bar ────────────────────────────────────────────────────────────── */
.hint-bar {
  background: #fffbe8;
  border-bottom: 2px solid #d4952a;
  padding: 7px 18px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 0.81rem;
  color: #5c3a08;
  font-weight: 600;
  animation: slideDown .15s ease;
}
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}
.hint-bar span { flex: 1; min-width: 160px; }

/* Override btn colors inside the yellow hint bar */
.hint-bar .btn-secondary {
  background: rgba(90,55,5,.1);
  color: #5c3a08;
  border: 1px solid rgba(90,55,5,.22);
}
.hint-bar .btn-secondary:hover:not(:disabled) { background: rgba(90,55,5,.16); }
.hint-bar .btn-ghost {
  color: #7c5820;
  border-color: transparent;
}
.hint-bar .btn-ghost:hover:not(:disabled) { background: rgba(90,55,5,.08); }

/* ── Game layout ─────────────────────────────────────────────────────────── */
.game-layout {
  display: grid;
  grid-template-columns: 205px 1fr 205px;
  overflow: hidden;
}

/* ── Side panels (Deck & Later) ──────────────────────────────────────────── */
.side-panel {
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border);
  background: var(--surface);
  overflow: hidden;
}
.later-panel {
  border-right: none;
  border-left: 1px solid var(--border);
}
.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 13px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  background: var(--bg-subtle);
}
.panel-header h2 {
  font-size: 0.68rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--text-muted);
}
.count-badge {
  background: var(--accent);
  color: #fff;
  font-size: 0.66rem;
  font-weight: 800;
  min-width: 22px;
  height: 22px;
  border-radius: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 6px;
  box-shadow: 0 1px 4px rgba(0,0,0,.22);
}
.card-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
.card-list::-webkit-scrollbar { width: 4px; }
.card-list::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

.side-panel.drag-over {
  outline: 2px dashed var(--drag-border);
  outline-offset: -4px;
}
.side-panel.drag-over .card-list {
  background: var(--drag-over);
  border-radius: var(--radius-sm);
}
.later-hint {
  padding: 9px 12px;
  font-size: 0.68rem;
  color: var(--text-light);
  text-align: center;
  font-style: italic;
  border-top: 1px dashed var(--border-light);
  flex-shrink: 0;
}

/* ── Cards ───────────────────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: grab;
  transition: border-color .14s, box-shadow .14s, transform .14s;
  box-shadow: var(--shadow-sm);
  user-select: none;
  -webkit-user-select: none;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.card:hover:not(.dragging):not(.selected) {
  border-color: var(--accent);
  box-shadow: var(--shadow), 0 0 0 1px var(--accent);
  transform: translateY(-2px);
}
.card:active { cursor: grabbing; }
.card.selected {
  border-color: var(--sel-border);
  background: var(--sel-bg);
  box-shadow: 0 0 0 3px rgba(37,99,235,.24), var(--shadow);
  transform: translateY(-1px);
}
.card.dragging { opacity: .28; cursor: grabbing; }
.card.correct  { border-color: var(--correct-border);   background: var(--correct-bg); }
.card.incorrect{ border-color: var(--incorrect-border); background: var(--incorrect-bg); }
.card:focus-visible { outline: 2px solid var(--sel-border); outline-offset: 2px; }

.card img {
  width: 100%;
  height: 72px;
  object-fit: cover;
  object-position: center top;
  display: block;
  pointer-events: none;
}
.card-label {
  padding: 5px 8px 6px;
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
}

/* ── Board panel ─────────────────────────────────────────────────────────── */
.board-panel {
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  padding: 12px;
  gap: 10px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
.board-panel::-webkit-scrollbar { width: 5px; }
.board-panel::-webkit-scrollbar-thumb { background: var(--border); border-radius: 5px; }

.board-instructions {
  text-align: center;
  font-size: 0.76rem;
  color: var(--text-muted);
  padding: 8px 12px;
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  line-height: 1.5;
}
.board-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
}

/* ── Slots ────────────────────────────────────────────────────────────────── */
.slot {
  background: var(--slot-empty);
  border: 2px dashed var(--slot-border);
  border-radius: var(--radius-sm);
  min-height: 92px;
  position: relative;
  transition: border-color .14s, background .14s, box-shadow .14s;
  display: flex;
  flex-direction: column;
}
.slot-num {
  position: absolute;
  top: 4px;
  left: 6px;
  font-size: 0.58rem;
  font-weight: 900;
  color: var(--text-light);
  line-height: 1;
  z-index: 2;
  pointer-events: none;
  font-variant-numeric: tabular-nums;
}
.slot.occupied {
  background: var(--surface);
  border-style: solid;
  border-color: var(--border);
  box-shadow: var(--shadow-xs);
}
.slot.drag-over {
  background: var(--drag-over);
  border-color: var(--drag-border);
  border-style: solid;
  box-shadow: 0 0 0 3px rgba(59,130,246,.22);
}
.slot.correct {
  border-color: var(--correct-border);
  background: var(--correct-bg);
  box-shadow: 0 0 0 1px var(--correct-border);
}
.slot.incorrect {
  border-color: var(--incorrect-border);
  background: var(--incorrect-bg);
  box-shadow: 0 0 0 1px var(--incorrect-border);
}
.slot.locked {
  border-color: var(--locked-border);
  border-style: solid;
  background: var(--locked-bg);
  box-shadow: 0 0 0 2px rgba(37,99,235,.28);
}
.slot.locked .slot-num {
  color: var(--locked-border);
  font-weight: 900;
}

.slot .card {
  border: none;
  border-radius: 0;
  box-shadow: none;
  background: transparent;
  flex: 1;
}
.slot .card:hover:not(.dragging):not(.selected) { transform: none; box-shadow: none; border-color: transparent; }
.slot .card.selected {
  border: 2px solid var(--sel-border);
  box-shadow: 0 0 0 3px rgba(37,99,235,.24);
  background: var(--sel-bg);
}
.slot .card img {
  height: 54px;
  padding-top: 15px;
}
.slot .card-label {
  font-size: 0.63rem;
  padding: 2px 5px 4px;
  line-height: 1.25;
}

/* ── Result modal ────────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.58);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  animation: bgFadeIn .2s ease;
}
.modal-overlay[hidden] { display: none; }
@keyframes bgFadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal-box {
  background: var(--surface);
  border-radius: var(--radius);
  max-width: 520px;
  width: 93%;
  box-shadow: var(--shadow-lg);
  max-height: 90dvh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: modalSlideUp .28s cubic-bezier(.34,1.4,.64,1);
}
@keyframes modalSlideUp {
  from { opacity: 0; transform: translateY(28px) scale(.95); }
  to   { opacity: 1; transform: none; }
}

.modal-header {
  background: linear-gradient(135deg, #2a1803 0%, #180d01 100%);
  padding: 22px 26px 18px;
  text-align: center;
  flex-shrink: 0;
}
.modal-header h2 {
  font-size: 0.72rem;
  font-weight: 800;
  color: rgba(255,255,255,.55);
  text-transform: uppercase;
  letter-spacing: .14em;
}
.result-score {
  font-size: 2.8rem;
  font-weight: 900;
  color: #f0c040;
  line-height: 1.05;
  margin-top: 6px;
  letter-spacing: -.02em;
}
.result-message {
  font-size: 0.86rem;
  color: rgba(255,255,255,.62);
  margin-top: 5px;
}

.result-list {
  overflow-y: auto;
  text-align: left;
  padding: 10px 14px;
  font-size: 0.78rem;
  flex: 1;
  min-height: 0;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
.result-list::-webkit-scrollbar { width: 4px; }
.result-list::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

.result-row {
  display: flex;
  align-items: baseline;
  gap: 6px;
  padding: 4px 0;
  border-bottom: 1px solid var(--border-light);
  flex-wrap: wrap;
}
.result-row:last-child { border: none; }
.ri-icon  { font-size: .82rem; flex-shrink: 0; }
.ri-pos   { font-weight: 800; color: var(--text-muted); min-width: 28px; flex-shrink: 0; font-variant-numeric: tabular-nums; }
.ri-name  { flex: 1; font-weight: 600; }
.ri-name.empty { color: var(--text-light); font-style: italic; font-weight: 400; }
.ri-year  { color: var(--text-light); font-size: 0.7rem; }
.ri-correct { color: var(--incorrect); font-size: 0.7rem; width: 100%; padding-left: 54px; font-style: italic; }

.modal-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-shrink: 0;
  padding: 14px 20px;
  border-top: 1px solid var(--border-light);
  background: var(--surface-alt);
}
.modal-actions .btn-secondary {
  background: var(--slot-empty);
  color: var(--text);
  border: 1px solid var(--border);
}
.modal-actions .btn-secondary:hover:not(:disabled) { background: var(--bg-subtle); }
.modal-actions .btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.modal-actions .btn-ghost:hover:not(:disabled) { background: var(--bg-subtle); color: var(--text); }

/* ── Touch drag clone ─────────────────────────────────────────────────────── */
.touch-clone {
  box-shadow: var(--shadow-lg);
  opacity: .88;
  transform: scale(1.06) rotate(-2deg);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

/* ── Responsive ───────────────────────────────────────────────────────────── */
@media (max-width: 980px) {
  .game-layout { grid-template-columns: 175px 1fr 175px; }
}

@media (max-width: 740px) {
  .app-shell { height: auto; overflow: visible; }
  .game-layout {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr auto;
    overflow: visible;
  }
  .side-panel {
    border-right: none;
    border-bottom: 1px solid var(--border);
    max-height: 220px;
  }
  .later-panel {
    border-left: none;
    border-top: 1px solid var(--border);
    border-bottom: none;
  }
  .card-list {
    flex-direction: row;
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
  }
  .card { min-width: 120px; flex-shrink: 0; }
  .card img { height: 60px; }
  .board-panel { overflow-y: visible; }
  .board-grid  { grid-template-columns: repeat(4, 1fr); }
  .app-header { flex-wrap: wrap; }
  .header-right { flex-wrap: wrap; }
}

@media (max-width: 420px) {
  .board-grid { grid-template-columns: repeat(4, 1fr); gap: 5px; }
  .slot { min-height: 72px; }
}

/* ── Long-press context menu ─────────────────────────────────────────────── */
.lp-backdrop {
  position: fixed;
  inset: 0;
  z-index: 9000;
  background: transparent;
}
.lp-menu {
  position: fixed;
  z-index: 9001;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  min-width: 200px;
  overflow: hidden;
  animation: lp-pop .18s cubic-bezier(.34,1.5,.64,1);
}
@keyframes lp-pop {
  from { opacity: 0; transform: scale(.88); }
  to   { opacity: 1; transform: scale(1); }
}
.lp-title {
  padding: 10px 14px 8px;
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-light);
  background: var(--bg-subtle);
}
.lp-btn {
  display: block;
  width: 100%;
  padding: 13px 16px;
  text-align: left;
  background: none;
  border: none;
  border-bottom: 1px solid var(--border-light);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  transition: background .12s;
}
.lp-btn:last-child { border-bottom: none; }
.lp-btn:active { background: var(--bg-subtle); }
.lp-btn-cancel {
  color: var(--text-muted);
  font-weight: 500;
}