:root {
  --bg: #101014;
  --panel: #18181f;
  --panel-border: #2a2a35;
  --text: #ececf1;
  --text-dim: #9a9aa8;
  --accent: #c9a24b;
  --accent-dim: #8a723a;
  --danger: #d0605a;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.4;
}

.app-header {
  padding: 2rem 1.5rem 1rem;
  text-align: center;
}

.app-header h1 {
  margin: 0 0 0.4rem;
  font-size: 1.9rem;
}

.accent { color: var(--accent); }

.subtitle {
  color: var(--text-dim);
  margin: 0;
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem 3rem;
}

.dropzone {
  border: 2px dashed var(--panel-border);
  border-radius: var(--radius);
  padding: 2.5rem 1rem;
  text-align: center;
  margin: 1.5rem 0;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  background: var(--panel);
}

.dropzone:hover,
.dropzone.dragover {
  border-color: var(--accent);
  background: #1e1c14;
}

.dropzone-icon {
  font-size: 2.4rem;
  margin-bottom: 0.5rem;
}

.hint {
  color: var(--text-dim);
  font-size: 0.85rem;
  margin: 0.2rem 0 0;
}

.layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 1.2rem;
  align-items: start;
}

@media (max-width: 800px) {
  .layout { grid-template-columns: 1fr; }
}

.panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 1.2rem;
  margin-bottom: 1.2rem;
}

.panel h2 {
  margin: 0 0 0.6rem;
  font-size: 1.1rem;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.count { color: var(--text-dim); font-weight: normal; }

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 0.8rem;
  margin-top: 0.8rem;
}

.empty-msg {
  color: var(--text-dim);
  text-align: center;
  padding: 1rem 0 0.4rem;
}

.card-item {
  position: relative;
  background: #0e0e13;
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  overflow: hidden;
  cursor: grab;
}

.card-item.dragging { opacity: 0.4; }

.card-item img {
  width: 100%;
  aspect-ratio: 63 / 88;
  object-fit: cover;
  display: block;
  cursor: zoom-in;
}

.card-item .remove-btn {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 22px;
  height: 22px;
  border: none;
  border-radius: 50%;
  background: rgba(0,0,0,0.65);
  color: #fff;
  font-size: 0.85rem;
  line-height: 1;
  cursor: pointer;
}

.card-item .remove-btn:hover { background: var(--danger); }

.card-item .add-btn {
  position: absolute;
  top: 4px;
  left: 4px;
  width: 22px;
  height: 22px;
  border: none;
  border-radius: 50%;
  background: rgba(0,0,0,0.65);
  color: #fff;
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
}

.card-item .add-btn:hover { background: var(--accent); color: #1a1a1a; }

.card-item .sheet-badge {
  position: absolute;
  bottom: 4px;
  left: 4px;
  background: var(--accent);
  color: #1a1a1a;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.05rem 0.4rem;
  border-radius: 999px;
}

.library-trigger-row {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin: 0 0 1.2rem;
  flex-wrap: wrap;
}

.btn-secondary {
  width: auto;
  margin: 0;
  padding: 0.55rem 1rem;
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
  white-space: nowrap;
}

.btn-secondary:hover { border-color: var(--accent); }

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 900;
  padding: 1.5rem;
}

.modal-overlay[hidden] { display: none; }

.modal-box {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 1.2rem;
  width: 100%;
  max-width: 900px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.modal-header h2 { margin: 0; }

.modal-header .lightbox-close {
  position: static;
  width: 32px;
  height: 32px;
  font-size: 1.3rem;
  background: transparent;
  color: var(--text-dim);
}

.modal-header .lightbox-close:hover { background: var(--danger); color: #fff; }

.modal-grid {
  overflow-y: auto;
  padding: 0.2rem;
  margin: 0.8rem -0.2rem;
}

.modal-footer {
  padding-top: 0.6rem;
  border-top: 1px solid var(--panel-border);
}

.modal-footer .btn-ghost { width: auto; }

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 2rem;
  cursor: zoom-out;
}

.lightbox[hidden] { display: none; }

.lightbox img {
  max-width: 100%;
  max-height: 100%;
  border-radius: 8px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
  cursor: default;
}

.lightbox-close {
  position: absolute;
  top: 1rem;
  right: 1.2rem;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: 1.6rem;
  line-height: 1;
  cursor: pointer;
}

.lightbox-close:hover { background: var(--danger); }

.qty-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.35rem;
  background: #0a0a0e;
}

.qty-row button {
  width: 22px;
  height: 22px;
  border: 1px solid var(--panel-border);
  background: #1c1c24;
  color: var(--text);
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.9rem;
  line-height: 1;
}

.qty-row input {
  width: 34px;
  text-align: center;
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 0.9rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  margin-bottom: 0.8rem;
  font-size: 0.85rem;
  color: var(--text-dim);
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
}

.field select,
.field input[type="number"] {
  background: #0e0e13;
  border: 1px solid var(--panel-border);
  color: var(--text);
  border-radius: 6px;
  padding: 0.4rem 0.5rem;
  font-size: 0.9rem;
}

.field-checkbox {
  flex-direction: row;
  align-items: center;
  gap: 0.5rem;
}

.stats {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  margin: 1rem 0;
  padding: 0.7rem;
  background: #0e0e13;
  border-radius: 6px;
  font-size: 0.85rem;
  color: var(--text-dim);
}

.stats span {
  color: var(--text);
  font-weight: 600;
}

.btn {
  width: 100%;
  padding: 0.65rem;
  border-radius: 8px;
  border: none;
  font-size: 0.95rem;
  cursor: pointer;
  margin-bottom: 0.6rem;
  transition: opacity 0.15s;
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn-primary {
  background: #2a2a35;
  color: var(--text);
  border: 1px solid var(--panel-border);
}

.btn-primary:hover:not(:disabled) { background: #33333f; }

.btn-accent {
  background: var(--accent);
  color: #1a1a1a;
  font-weight: 600;
}

.btn-accent:hover:not(:disabled) { background: #d9b25f; }

.btn-ghost {
  background: transparent;
  color: var(--text-dim);
  border: 1px solid var(--panel-border);
  padding: 0.3rem 0.7rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.8rem;
}

.btn-ghost:hover { color: var(--danger); border-color: var(--danger); }

.status-msg {
  min-height: 1.2em;
  font-size: 0.85rem;
  color: var(--accent);
  text-align: center;
  margin: 0;
}

.preview-pages {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 0.8rem;
}

.preview-pages canvas {
  max-width: 260px;
  width: 100%;
  border: 1px solid var(--panel-border);
  border-radius: 4px;
  background: #fff;
}

.preview-page-wrap {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-dim);
}