/* ---- Custom properties ---- */
/* Dark is the default; an explicit choice sets data-theme on <html>, and users
   without a saved choice follow their OS via the prefers-color-scheme block. */
:root {
  --bg:          #0f0f1a;
  --surface:     #1a1a2e;
  --surface-2:   #22223a;
  --border:      #2e2e50;
  --accent:      #6c63ff;
  --accent-dim:  #4e47c4;
  --danger:      #e94560;
  --danger-dim:  #b8304a;
  --success:     #4caf82;
  --warn:        #f0a500;
  --text:        #e0e0f0;
  --text-muted:  #9a9ac0;
  --radius:      10px;
  --radius-lg:   16px;
  --shadow:      0 4px 24px rgba(0,0,0,0.5);
  --transition:  0.18s ease;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    --bg:         #f2f2f7;
    --surface:    #ffffff;
    --surface-2:  #ebebf3;
    --border:     #d2d2e2;
    --accent:     #5a52e0;
    --accent-dim: #4841b8;
    --danger:     #d02e50;
    --danger-dim: #ab2543;
    --success:    #2e8a5f;
    --warn:       #a06e00;
    --text:       #1e1e2e;
    --text-muted: #5c5c74;
    --shadow:     0 4px 24px rgba(30,30,60,0.14);
  }
}

:root[data-theme="light"] {
  --bg:         #f2f2f7;
  --surface:    #ffffff;
  --surface-2:  #ebebf3;
  --border:     #d2d2e2;
  --accent:     #5a52e0;
  --accent-dim: #4841b8;
  --danger:     #d02e50;
  --danger-dim: #ab2543;
  --success:    #2e8a5f;
  --warn:       #a06e00;
  --text:       #1e1e2e;
  --text-muted: #5c5c74;
  --shadow:     0 4px 24px rgba(30,30,60,0.14);
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; }

body {
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100dvh;
  line-height: 1.5;
}

img { display: block; max-width: 100%; }
button { cursor: pointer; font: inherit; }
input { font: inherit; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-2);
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), opacity var(--transition);
  white-space: nowrap;
  user-select: none;
}
.btn:hover:not(:disabled) { background: var(--border); border-color: var(--accent); }
.btn:active:not(:disabled) { transform: scale(0.97); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.btn-primary:hover:not(:disabled) { background: var(--accent-dim); border-color: var(--accent-dim); }

.btn-danger {
  background: var(--danger);
  border-color: var(--danger);
  color: #fff;
}
.btn-danger:hover:not(:disabled) { background: var(--danger-dim); border-color: var(--danger-dim); }

.btn-sm  { padding: 5px 12px; font-size: 0.8rem; }
.btn-xs  { padding: 3px 8px;  font-size: 0.75rem; }
.btn-icon { padding: 6px 10px; }
.import-label { cursor: pointer; }

/* ---- Inputs ---- */
input[type="text"],
input[type="number"],
input[type="url"],
textarea,
select {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 8px 12px;
  transition: border-color var(--transition);
  width: 100%;
  font: inherit;
}
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--accent); }

/* ---- Visible keyboard focus ---- */
.btn:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ---- App header ---- */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.app-header h1 {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--accent);
}
.header-actions { display: flex; gap: 8px; }

/* ---- Views ---- */
.view:not([hidden]) { display: flex; flex-direction: column; min-height: 100dvh; }

/* ---- Settings view ---- */
.settings-main {
  padding: 24px 20px;
  max-width: 720px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.settings-section { display: flex; flex-direction: column; gap: 14px; }
/* display:flex above would defeat the UA's [hidden] rule — restore it. */
.settings-section[hidden] { display: none; }
.settings-section h2 { font-size: 1rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.06em; }

.settings-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}
.section-header-actions { display: flex; gap: 6px; }

.settings-field { display: flex; flex-direction: column; gap: 6px; }
.settings-field label { font-size: 0.875rem; color: var(--text-muted); }
.settings-field input[type="number"] { max-width: 120px; }

.settings-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-bottom: 40px;
}

/* ---- Value rows ---- */
.values-list { display: flex; flex-direction: column; gap: 10px; }

.value-row {
  display: grid;
  grid-template-columns: 1fr auto auto auto;
  gap: 8px;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  transition: border-color var(--transition);
}
.value-row:focus-within { border-color: var(--accent); }

.value-text-input { background: transparent; border: none; border-radius: 0; padding: 0; }
.value-text-input:focus { border: none; }

.value-img-preview { display: flex; align-items: center; }
.value-thumb {
  width: 36px;
  height: 36px;
  object-fit: cover;
  border-radius: 6px;
  border: 1px solid var(--border);
}

.value-img-controls { display: flex; gap: 4px; flex-wrap: wrap; }

.value-row-duplicate { border-color: var(--warn); }
.value-row-duplicate:focus-within { border-color: var(--warn); }

/* ---- Mode selector ---- */
.mode-fieldset {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.mode-fieldset legend {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0 6px;
}
.mode-option {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  cursor: pointer;
  transition: border-color var(--transition);
}
.mode-option:has(input:checked) { border-color: var(--accent); }
.mode-option input[type="radio"] {
  accent-color: var(--accent);
  margin-top: 4px;
  cursor: pointer;
  flex-shrink: 0;
}
.mode-option-text { display: flex; flex-direction: column; gap: 2px; }
.mode-option-text small { color: var(--text-muted); }

/* ---- Traditional (numbered-columns) editor ---- */
.columns-list { display: flex; flex-direction: column; gap: 10px; }

.column-row {
  display: grid;
  grid-template-columns: minmax(56px, 90px) minmax(70px, 110px) auto minmax(70px, 110px) 1fr auto;
  gap: 8px;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  transition: border-color var(--transition);
}
.column-row:focus-within { border-color: var(--accent); }
/* Overlapping ranges warn (like duplicate values); invalid input overrides with danger. */
.column-row-overlap { border-color: var(--warn); }
.column-row-overlap:focus-within { border-color: var(--warn); }
.column-row-invalid { border-color: var(--danger); }
.column-row-invalid:focus-within { border-color: var(--danger); }

.column-range-sep { color: var(--text-muted); }
.column-count {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: right;
  white-space: nowrap;
}

.traditional-summary { font-size: 0.875rem; color: var(--text-muted); }

/* ---- Values filter ---- */
.values-filter { display: flex; align-items: center; gap: 10px; }
.values-filter input { max-width: 260px; }
.values-filter-count {
  font-size: 0.8rem;
  color: var(--text-muted);
  white-space: nowrap;
}

/* ---- Game view ---- */
.game-main { flex: 1; padding: 20px; }

.game-layout {
  display: grid;
  grid-template-columns: minmax(280px, 380px) 1fr;
  gap: 20px;
  max-width: 1100px;
  margin: 0 auto;
  height: 100%;
}

.game-left {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ---- Current draw card ---- */
.current-draw {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px 20px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  transition: border-color var(--transition);
  min-height: 220px;
  justify-content: center;
}
.current-draw.has-value { border-color: var(--accent); box-shadow: 0 0 24px rgba(108,99,255,0.2); }

.current-draw-image-wrap { width: 100%; display: flex; justify-content: center; }
.current-draw-image {
  max-height: 140px;
  max-width: 100%;
  object-fit: contain;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.current-draw-text {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  word-break: break-word;
}

.pool-count { font-size: 0.8rem; color: var(--text-muted); }

/* ---- Game controls ---- */
.game-controls {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* ---- Winners panel ---- */
.winners-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.winners-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}
.winners-count-text { font-weight: 600; font-size: 0.95rem; }
.winners-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.winners-list li {
  padding: 4px 10px;
  background: var(--surface-2);
  border-radius: 6px;
  font-size: 0.875rem;
  border-left: 3px solid var(--accent);
}

/* ---- Game-over banner ---- */
.game-over-banner {
  background: linear-gradient(135deg, var(--accent), var(--danger));
  border-radius: var(--radius);
  padding: 16px 20px;
  text-align: center;
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  animation: pulse-glow 2s ease-in-out infinite;
}
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 16px rgba(108,99,255,0.4); }
  50%       { box-shadow: 0 0 36px rgba(108,99,255,0.7); }
}

/* ---- History ---- */
.game-right {
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow: hidden;
}

.history-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.history-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(96px, 1fr));
  gap: 8px;
  overflow-y: auto;
  max-height: calc(100dvh - 180px);
  padding-right: 4px;
}
.history-grid::-webkit-scrollbar { width: 6px; }
.history-grid::-webkit-scrollbar-track { background: transparent; }
.history-grid::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

.history-cell {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  font-size: 0.8rem;
  word-break: break-word;
  transition: border-color var(--transition);
}
.history-cell-current {
  border-color: var(--accent);
  background: var(--surface-2);
  box-shadow: 0 0 10px rgba(108,99,255,0.25);
}
.history-thumb {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 6px;
  border: 1px solid var(--border);
}
.history-text { line-height: 1.3; }

/* ---- Modal ---- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 20px;
  backdrop-filter: blur(4px);
}
.modal-overlay[hidden] { display: none; }

.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  max-width: 440px;
  width: 100%;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 16px;
  animation: modal-in 0.15s ease;
}
@keyframes modal-in {
  from { transform: scale(0.94) translateY(-8px); opacity: 0; }
  to   { transform: scale(1)    translateY(0);    opacity: 1; }
}

.modal-title { font-size: 1.1rem; font-weight: 700; }
.modal-message { color: var(--text-muted); font-size: 0.9rem; }
.modal-input { margin-top: 4px; }

.modal-textarea { resize: vertical; min-height: 100px; }

.modal-field { display: flex; flex-direction: column; gap: 4px; margin-bottom: 8px; }
.modal-field > label { font-size: 0.875rem; color: var(--text-muted); }
.modal-field-checkbox { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.modal-field-checkbox input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--accent); cursor: pointer; flex-shrink: 0; }
.modal-field-checkbox label { font-size: 0.875rem; cursor: pointer; }

.modal-buttons {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
  margin-top: 4px;
}

/* ---- Toast ---- */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 200;
  pointer-events: none;
}
.toast {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 16px;
  font-size: 0.875rem;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  max-width: 320px;
}
.toast.toast-visible { opacity: 1; transform: translateY(0); }
.toast.toast-success { border-left: 3px solid var(--success); }
.toast.toast-error   { border-left: 3px solid var(--danger);  }
.toast.toast-warn    { border-left: 3px solid var(--warn);    }
.toast.toast-info    { border-left: 3px solid var(--accent);  }

/* ---- Reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
  .game-over-banner { animation: none; }
  .modal { animation: none; }
  .toast { transition: none; }
  .btn:active:not(:disabled) { transform: none; }
}

/* ---- Responsive ---- */
@media (max-width: 680px) {
  .game-layout {
    grid-template-columns: 1fr;
  }
  .history-grid {
    max-height: 40dvh;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
  }
  .current-draw-text { font-size: 1.5rem; }
  .app-header h1 { font-size: 1rem; }
}
