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

:root {
  --bg: #111827;
  --surface: #1f2937;
  --border: #374151;
  --accent: #6366f1;
  --accent-hover: #4f46e5;
  --danger: #ef4444;
  --warning: #f59e0b;
  --success: #10b981;
  --text: #f9fafb;
  --muted: #9ca3af;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, sans-serif;
  font-size: 14px;
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

header {
  padding: 10px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}

header h1 { font-size: 1.1rem; font-weight: 700; }

#refresh-btn {
  margin-left: auto;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 5px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.8rem;
  transition: all 0.15s;
}

#refresh-btn:hover:not(:disabled) { border-color: var(--accent); color: var(--text); }
#refresh-btn:disabled { opacity: 0.5; cursor: default; }

#refresh-msg { font-size: 0.78rem; color: var(--muted); }

#layout {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* ---- card browser ---- */

#browser {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

#tabs {
  display: flex;
  gap: 6px;
  padding: 10px 14px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.tab {
  padding: 6px 18px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  cursor: pointer;
  border-radius: 6px;
  font-size: 0.85rem;
  transition: all 0.15s;
}

.tab:hover { border-color: var(--accent); color: var(--text); }
.tab.active { background: var(--accent); border-color: var(--accent); color: white; }

.tab-note { font-size: 0.7em; opacity: 0.6; }

.res-tab { margin-left: auto; }

#grid {
  flex: 1;
  overflow-y: auto;
  padding: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-content: flex-start;
}

/* ---- card slots ---- */

.card-slot {
  position: relative;
  cursor: pointer;
  border-radius: 6px;
  border: 2px solid transparent;
  transition: transform 0.12s, border-color 0.12s, opacity 0.12s;
}

.card-slot:hover {
  transform: translateY(-4px) scale(1.04);
  border-color: var(--accent);
}

.card-slot.maxed {
  opacity: 0.45;
  cursor: not-allowed;
}

.card-slot.maxed:hover {
  transform: none;
  border-color: var(--warning);
}

.card-slot img {
  display: block;
  height: 18vw;
  width: auto;
  border-radius: 4px;
}

.badge {
  position: absolute;
  top: -7px;
  right: -7px;
  background: var(--accent);
  color: white;
  border-radius: 50%;
  width: 22px;
  height: 22px;
  font-size: 0.72rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--bg);
  pointer-events: none;
}

.max-overlay {
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--warning);
  color: #000;
  font-size: 0.6rem;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: 3px;
  pointer-events: none;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.placeholder {
  width: 100%;
  text-align: center;
  padding: 60px 20px;
  color: var(--muted);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-direction: column;
}

.placeholder code {
  background: #0004;
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 0.85rem;
}

.placeholder.error { color: var(--danger); }
.placeholder small { font-size: 0.78rem; opacity: 0.7; }

/* ---- resource deck view ---- */

#grid.resource-mode {
  flex-direction: column;
  flex-wrap: nowrap;
  align-content: unset;
  gap: 0;
  padding: 24px;
}

.resource-intro {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.resource-intro p {
  color: var(--muted);
  font-size: 0.88rem;
  flex: 1;
  min-width: 200px;
}

.resource-total-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.res-total {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--muted);
  min-width: 70px;
  text-align: center;
  padding: 6px 14px;
  border: 2px solid var(--border);
  border-radius: 8px;
  transition: color 0.2s, border-color 0.2s;
}

.res-total.complete {
  color: var(--success);
  border-color: var(--success);
}

.res-total.over {
  color: var(--danger);
  border-color: var(--danger);
}

.res-ok {
  font-size: 0.82rem;
  color: var(--success);
  font-weight: 600;
}

.resource-cards {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.res-card-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
}

.res-card-item img {
  height: 20vw;
  width: auto;
  border-radius: 6px;
  display: block;
}

.res-no-img {
  height: 200px;
  width: 140px;
  background: var(--bg);
  border: 1px dashed var(--border);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 0.78rem;
}

.res-deck-name {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
}

.res-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.res-controls button {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  width: 28px;
  height: 28px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.12s, border-color 0.12s;
}

.res-controls button:hover:not(:disabled) {
  background: var(--border);
  border-color: var(--accent);
}

.res-controls button:disabled { opacity: 0.35; cursor: default; }

.res-count {
  font-size: 1.2rem;
  font-weight: 700;
  min-width: 28px;
  text-align: center;
}

.res-export-btn {
  margin-top: 28px;
  background: var(--accent);
  border: none;
  color: white;
  padding: 10px 22px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  transition: background 0.15s;
  align-self: flex-start;
}

.res-export-btn:hover:not(:disabled) { background: var(--accent-hover); }
.res-export-btn:disabled { background: var(--border); color: var(--muted); cursor: default; }

/* ---- sidebar ---- */

#sidebar {
  width: 255px;
  background: var(--surface);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

#sidebar-top {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
}

#sidebar-top h2 { font-size: 0.95rem; font-weight: 600; }
#card-total { font-size: 0.78rem; color: var(--muted); white-space: nowrap; }
#card-total.at-max { color: var(--warning); font-weight: 600; }

#deck-warning {
  font-size: 0.72rem;
  color: var(--warning);
  opacity: 0;
  transition: opacity 0.2s;
  text-align: right;
  white-space: nowrap;
  overflow: hidden;
  max-width: 110px;
  text-overflow: ellipsis;
}

#deck-warning.visible { opacity: 1; }

#deck-breakdown {
  display: none;
  flex-wrap: wrap;
  gap: 5px;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
}

.breakdown-chip {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 7px;
  font-size: 0.72rem;
  color: var(--muted);
}

.breakdown-chip strong { color: var(--text); }

#deck-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.deck-row {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg);
  border-radius: 5px;
  padding: 5px 8px;
  border: 1px solid var(--border);
}

.deck-row img {
  height: 36px;
  width: auto;
  border-radius: 3px;
  flex-shrink: 0;
}

.deck-row-name {
  flex: 1;
  font-size: 0.72rem;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.deck-row-controls {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.deck-row-controls button {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  width: 20px;
  height: 20px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.deck-row-controls button:hover { background: var(--border); }
.deck-row-controls .count { font-size: 0.82rem; min-width: 16px; text-align: center; }

#sidebar-bottom {
  padding: 12px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sidebar-btn-row {
  display: flex;
  gap: 8px;
}

#clear-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.82rem;
  transition: all 0.15s;
}

#clear-btn:hover { border-color: var(--danger); color: var(--danger); }

#export-btn {
  flex: 1;
  background: var(--accent);
  border: none;
  color: white;
  padding: 8px 14px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  transition: background 0.15s;
}

#export-btn:hover:not(:disabled) { background: var(--accent-hover); }
#export-btn:disabled { background: var(--border); color: var(--muted); cursor: default; }

#export-resource-btn {
  width: 100%;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 7px 14px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 500;
  transition: all 0.15s;
}

#export-resource-btn:hover:not(:disabled) {
  border-color: var(--success);
  color: var(--success);
}

#export-resource-btn:disabled { opacity: 0.4; cursor: default; }

/* ---- spinner ---- */

.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

#grid::-webkit-scrollbar,
#deck-list::-webkit-scrollbar { width: 5px; }

#grid::-webkit-scrollbar-thumb,
#deck-list::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}