:root {
  --collection-bg-base: #0c0e11;
  --collection-bg-accent-a: rgba(0,153,255,0.08);
  --collection-bg-accent-b: rgba(255,194,56,0.08);
  --collection-surface: rgba(18,21,28,0.72);
  --collection-border: rgba(255,255,255,0.08);
  --collection-text-strong: #f4f6fb;
  --collection-modal-surface: rgba(10,14,22,0.96);
  --collection-modal-border: rgba(255,255,255,0.12);
  --collection-input-bg: rgba(20,25,35,0.75);
  --collection-input-border: rgba(255,255,255,0.18);
  --collection-chip-bg: rgba(20,25,35,0.55);
  --collection-chip-border: rgba(255,255,255,0.16);
}

[data-theme="light"] {
  --collection-bg-base: #ffffff;
  --collection-bg-accent-a: transparent;
  --collection-bg-accent-b: transparent;
  --collection-surface: rgba(255,255,255,0.92);
  --collection-border: rgba(17,24,39,0.12);
  --collection-text-strong: #111827;
  --collection-modal-surface: rgba(255,255,255,0.98);
  --collection-modal-border: rgba(17,24,39,0.16);
  --collection-input-bg: rgba(248,250,252,0.98);
  --collection-input-border: rgba(17,24,39,0.2);
  --collection-chip-bg: rgba(240,244,252,0.96);
  --collection-chip-border: rgba(17,24,39,0.16);
}

.collection-main {
  padding-top: calc(64px + var(--space-8));
  min-height: 100vh;
  background:
    radial-gradient(circle at 10% 10%, var(--collection-bg-accent-a), transparent 45%),
    radial-gradient(circle at 90% 0%, var(--collection-bg-accent-b), transparent 40%),
    var(--collection-bg-base);
}
.collection-hero {
  margin: 0 auto;
  max-width: 1240px;
  border-radius: 18px;
  border: 1px solid var(--collection-border);
  background: var(--collection-surface);
  backdrop-filter: blur(8px);
  padding: 18px 22px;
}
.collection-hero-bg { display: none; }
.collection-hero-content {
  color: var(--collection-text-strong);
}
.collection-kicker {
  margin: 0 0 6px;
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.collection-hero h1 {
  margin: 0;
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.06;
}
.collection-hero p {
  margin: 12px 0 0;
  font-size: 15px;
  font-weight: 600;
  max-width: 70ch;
}
.collection-controls-wrap,
.collection-grid-wrap {
  margin: 14px auto 0;
  max-width: 1240px;
}
.collection-controls-wrap {
  background: var(--collection-surface);
  border: 1px solid var(--collection-border);
  border-radius: 16px;
  backdrop-filter: blur(10px);
  padding: 14px;
}
.collection-actions {
  display: flex;
  justify-content: center;
  margin: 18px 0 28px;
}
.collection-actions .hero-pill {
  min-width: 140px;
}
.collection-controls .hero-pill {
  min-height: 40px;
  white-space: nowrap;
}
@media (max-width: 768px) {
  .collection-main { padding-top: calc(64px + var(--space-6)); }
  .collection-hero { border-radius: 0; margin: 0; }
  .collection-controls-wrap,
  .collection-grid-wrap { margin-top: 8px; padding-left: 10px; padding-right: 10px; }
}

.collection-detail-overlay {
  position: fixed;
  inset: 0;
  z-index: 240;
  background: rgba(0, 0, 0, 0.72);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.collection-detail-overlay.hidden { display: none; }
.collection-detail-modal {
  width: min(1160px, 96vw);
  max-height: 92vh;
  overflow: auto;
  border-radius: 18px;
  border: 1px solid var(--collection-modal-border);
  background: var(--collection-modal-surface);
  backdrop-filter: blur(10px);
  display: grid;
  grid-template-columns: minmax(320px, 46%) 1fr;
  gap: 16px;
  padding: 18px;
  position: relative;
}
.collection-detail-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 36px;
  height: 36px;
  border-radius: 999px;
  border: 1px solid var(--collection-chip-border);
  background: var(--collection-chip-bg);
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.collection-detail-media {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.collection-detail-image-wrap {
  background: var(--color-surface-2);
  border: 1px solid var(--collection-modal-border);
  border-radius: 14px;
  min-height: 520px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
}
.collection-detail-image {
  max-width: 100%;
  max-height: 72vh;
  width: auto;
  height: auto;
  border-radius: 12px;
  object-fit: contain;
  box-shadow: 0 10px 32px rgba(0,0,0,0.45);
}
.collection-detail-image.hidden { display: none; }
.collection-detail-media-actions {
  display: flex;
  gap: 8px;
}
.collection-detail-info h2 {
  margin: 6px 0 12px;
  font-size: 26px;
}
.collection-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.collection-detail-grid label,
.collection-detail-notes {
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-size: 12px;
  color: var(--color-text-muted);
}
.collection-detail-grid input,
.collection-detail-notes textarea {
  border: 1px solid var(--collection-input-border);
  border-radius: 10px;
  background: var(--collection-input-bg);
  color: var(--color-text);
  padding: 8px 10px;
  font-size: 14px;
}
.collection-detail-checks {
  margin-top: 10px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
.collection-detail-checks label {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  color: var(--color-text);
  border: 1px solid var(--collection-chip-border);
  border-radius: 10px;
  padding: 8px 10px;
  background: var(--collection-chip-bg);
}
.collection-detail-checks input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: #4f8cff;
}
.collection-detail-checks input[type="checkbox"]:checked + span {
  font-weight: 600;
}
.collection-detail-notes {
  margin-top: 10px;
}
.collection-detail-groups {
  margin-top: 10px;
  border: 1px solid var(--collection-modal-border);
  border-radius: 10px;
  padding: 10px;
  background: var(--collection-chip-bg);
}
.collection-detail-groups-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-size: 12px;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}
.collection-detail-groups-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.collection-detail-group-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 8px;
  border-radius: 999px;
  border: 1px solid var(--collection-chip-border);
  background: var(--collection-input-bg);
  font-size: 12px;
  color: var(--color-text);
}
.collection-detail-group-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}
.collection-detail-groups-empty {
  font-size: 12px;
  color: var(--color-text-muted);
}
.gallery-name-favorite {
  width: 20px;
  height: 20px;
  border-radius: 999px;
  border: 1px solid var(--collection-chip-border);
  background: var(--collection-chip-bg);
  color: #ffd86b;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  margin-left: 2px;
}
.gallery-name-favorite:hover {
  background: var(--collection-input-bg);
}
.collection-detail-actions {
  margin-top: 12px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.collection-detail-status {
  min-height: 20px;
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--color-text-muted);
}

@media (max-width: 960px) {
  .collection-detail-modal {
    grid-template-columns: 1fr;
  }
  .collection-detail-image-wrap {
    min-height: 320px;
  }
  .collection-detail-grid {
    grid-template-columns: 1fr;
  }
  .collection-detail-checks {
    grid-template-columns: 1fr;
  }
}