:root {
  --bg: #0c0d12;
  --panel: #16181f;
  --panel-border: #262a35;
  --text: #f2f2f5;
  --text-dim: #9a9ca8;
  --accent: #ed1d24;
  --accent-gold: #e8b13a;
  --card-bg: #1f222c;
  --card-border: #333744;
  --phase-1: #e8b13a;
  --phase-2: #d9793f;
  --phase-3: #ed1d24;
  --phase-4: #4d7ea8;
  --phase-5: #7c6fd1;
  --phase-6: #2e8a5e;
  --tier-0: #e8b13a;
  --tier-0-text: #171114;
  --tier-1: #d9793f;
  --tier-1-text: #171114;
  --tier-2: #4d7ea8;
  --tier-2-text: #f2f2f5;
  --tier-3: #4a4e5c;
  --tier-3-text: #f2f2f5;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.app-header {
  padding: 16px 20px 10px;
  border-bottom: 1px solid var(--panel-border);
}

.app-header h1 {
  margin: 0 0 4px;
  font-size: 1.4rem;
  letter-spacing: 0.02em;
  background: linear-gradient(90deg, var(--accent), var(--accent-gold));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.subtitle {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.85rem;
  max-width: 640px;
}

/* ---------- Sticky control panel: search, selection status, quartile buttons ---------- */

.control-panel {
  position: sticky;
  top: 0;
  z-index: 400;
  background: var(--bg);
  border-bottom: 1px solid var(--panel-border);
  padding: 10px 16px 12px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
}

#search-input {
  width: 100%;
  max-width: 640px;
  display: block;
  margin: 0 auto;
  padding: 9px 10px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  color: var(--text);
  font-size: 0.9rem;
}

.selection-row {
  max-width: 640px;
  margin: 8px auto 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-height: 20px;
}

.selection-status {
  color: var(--text-dim);
  font-size: 0.82rem;
  font-weight: 600;
}

.selection-cancel-btn {
  flex-shrink: 0;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  color: var(--text);
  padding: 5px 12px;
  border-radius: 6px;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
}
.selection-cancel-btn:hover {
  border-color: var(--accent-gold);
}

.quartile-buttons {
  max-width: 640px;
  margin: 8px auto 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}

.quartile-btn {
  border: none;
  border-radius: 8px;
  padding: 8px 4px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  font-weight: 700;
  cursor: pointer;
  min-height: 46px;
}
.quartile-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}
.quartile-btn .qb-label {
  font-size: 0.74rem;
  line-height: 1.1;
  text-align: center;
}
.quartile-btn .qb-count {
  font-size: 0.68rem;
  font-weight: 600;
  opacity: 0.8;
}

.quartile-btn[data-tier-index="0"] { background: var(--tier-0); color: var(--tier-0-text); }
.quartile-btn[data-tier-index="1"] { background: var(--tier-1); color: var(--tier-1-text); }
.quartile-btn[data-tier-index="2"] { background: var(--tier-2); color: var(--tier-2-text); }
.quartile-btn[data-tier-index="3"] { background: var(--tier-3); color: var(--tier-3-text); }

/* ---------- Layout ---------- */

.layout {
  display: flex;
  gap: 16px;
  padding: 16px;
  align-items: flex-start;
}

.pool-panel {
  width: 280px;
  flex-shrink: 0;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  padding: 10px;
  max-height: 70vh;
  overflow-y: auto;
}

.movie-pool {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.pool-chip {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 0.85rem;
  cursor: pointer;
  user-select: none;
  touch-action: none;
  display: flex;
  justify-content: space-between;
  gap: 8px;
  border-left: 3px solid var(--accent);
}

.pool-chip[data-phase="1"] { border-left-color: var(--phase-1); }
.pool-chip[data-phase="2"] { border-left-color: var(--phase-2); }
.pool-chip[data-phase="3"] { border-left-color: var(--phase-3); }
.pool-chip[data-phase="4"] { border-left-color: var(--phase-4); }
.pool-chip[data-phase="5"] { border-left-color: var(--phase-5); }
.pool-chip[data-phase="6"] { border-left-color: var(--phase-6); }

.pool-chip.selected {
  outline: 2px solid var(--accent-gold);
  outline-offset: -1px;
}

.phase-header {
  color: var(--text-dim);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 8px 2px 2px;
}
.phase-header:first-child {
  padding-top: 2px;
}

.pool-chip .yr {
  color: var(--text-dim);
  font-size: 0.78rem;
  white-space: nowrap;
}

.pool-empty {
  color: var(--text-dim);
  font-size: 0.82rem;
  padding: 8px 2px;
}

.board-wrap {
  flex: 1;
  min-width: 0;
}

.board-header-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.progress-summary {
  color: var(--text-dim);
  font-size: 0.82rem;
}

.board-actions {
  display: flex;
  gap: 8px;
}

.secondary-btn {
  padding: 8px 12px;
  border-radius: 6px;
  border: 1px solid var(--panel-border);
  background: var(--panel);
  color: var(--text);
  font-size: 0.8rem;
  cursor: pointer;
}
.secondary-btn:hover {
  border-color: var(--accent-gold);
}

/* ---------- Board: each quartile is a full-width, vertically ordered list ---------- */

.tier-board {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.tier-column {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  overflow: hidden;
}

.tier-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 12px;
}

.tier-column[data-tier-index="0"] .tier-header { background: var(--tier-0); color: var(--tier-0-text); }
.tier-column[data-tier-index="1"] .tier-header { background: var(--tier-1); color: var(--tier-1-text); }
.tier-column[data-tier-index="2"] .tier-header { background: var(--tier-2); color: var(--tier-2-text); }
.tier-column[data-tier-index="3"] .tier-header { background: var(--tier-3); color: var(--tier-3-text); }

.tier-label {
  font-weight: 700;
  font-size: 1rem;
  outline: none;
}

.tier-capacity {
  font-size: 0.78rem;
  font-weight: 600;
  opacity: 0.8;
}

.tier-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 8px;
  min-height: 48px;
}

.tier-column.placeable {
  cursor: pointer;
  outline: 2px dashed var(--card-border);
  outline-offset: -2px;
}
.tier-column.placeable:hover,
.tier-column.placeable:active {
  outline-color: var(--accent-gold);
}

.tier-column.drag-over {
  outline: 2px dashed var(--accent-gold);
  outline-offset: -2px;
}

.tier-column.drag-over-full {
  outline: 2px dashed var(--accent);
  outline-offset: -2px;
}

.rank-row {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 0.85rem;
  cursor: grab;
  user-select: none;
  touch-action: none;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
  border-left: 3px solid var(--accent);
  display: flex;
  align-items: center;
  gap: 10px;
}

.rank-row[data-phase="1"] { border-left-color: var(--phase-1); }
.rank-row[data-phase="2"] { border-left-color: var(--phase-2); }
.rank-row[data-phase="3"] { border-left-color: var(--phase-3); }
.rank-row[data-phase="4"] { border-left-color: var(--phase-4); }
.rank-row[data-phase="5"] { border-left-color: var(--phase-5); }
.rank-row[data-phase="6"] { border-left-color: var(--phase-6); }

.rank-row.selected {
  outline: 2px solid var(--accent-gold);
  outline-offset: -1px;
}

.rank-row .rank-num {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--panel-border);
  color: var(--text);
  font-size: 0.72rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.rank-row .title {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.rank-row .remove-x {
  flex-shrink: 0;
  color: var(--text-dim);
  cursor: pointer;
  padding: 2px 2px 2px 6px;
}
.rank-row .remove-x:hover {
  color: var(--accent);
}

.rank-row.drag-ghost {
  position: fixed;
  z-index: 999;
  pointer-events: none;
  opacity: 0.97;
  cursor: grabbing;
  width: 220px;
  /* Offset up and centered on the pointer so a finger dragging on a
     touchscreen doesn't sit directly on top of (and hide) the ghost. */
  transform: translate(-50%, -140%);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.5);
  border-color: var(--accent-gold);
}

.rank-row.drop-placeholder {
  background: rgba(232, 177, 58, 0.12);
  border: 2px dashed var(--accent-gold);
  border-left: 2px dashed var(--accent-gold);
  box-shadow: none;
  pointer-events: none;
}

.app-footer {
  padding: 8px 24px 20px;
  color: var(--text-dim);
  font-size: 0.78rem;
  text-align: center;
}

@media (max-width: 860px) {
  .app-header {
    padding: 12px 16px 8px;
  }
  .subtitle {
    font-size: 0.8rem;
  }
  .layout {
    flex-direction: column;
    padding: 12px;
  }
  .pool-panel {
    width: 100%;
    max-height: 34vh;
  }
  .quartile-buttons {
    grid-template-columns: 1fr 1fr;
  }
  .quartile-btn .qb-label {
    font-size: 0.82rem;
  }
  .quartile-btn .qb-count {
    font-size: 0.72rem;
  }
  .rank-row {
    padding: 10px 12px;
    font-size: 0.88rem;
  }
  .rank-row .remove-x {
    font-size: 1rem;
    padding: 4px 2px 4px 8px;
  }
  .pool-chip {
    padding: 10px 12px;
    font-size: 0.9rem;
  }
  .secondary-btn {
    padding: 10px 12px;
    font-size: 0.85rem;
  }
}

@media (max-width: 480px) {
  .control-panel {
    padding: 8px 12px 10px;
  }
}