/* ────────────────────────────────────────────────────────────────────────────
   Black Hole Gallery — Global Stylesheet
   Uses CSS custom properties for easy theming.
   ──────────────────────────────────────────────────────────────────────────── */

:root {
  --color-bg: #000000;
  --color-surface: #0d0d0d;
  --color-border: #1a1a1a;
  --color-accent: #7c3aed;
  --color-accent-glow: rgba(124, 58, 237, 0.35);
  --color-text: #e5e5e5;
  --color-text-muted: #666666;
  --color-text-dim: #444444;
  --color-danger: #ef4444;
  --color-success: #22c55e;

  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 400ms ease;
}

/* ─── Reset ────────────────────────────────────────────────────────────────── */

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

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ─── Gallery Container ─────────────────────────────────────────────────────── */

#gallery-container {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  background: var(--color-bg);
  /* The canvas fills this div; vignette bleeds to match */
}

#gallery-container canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
}

/* ─── Info Overlay (image title on hover) ─────────────────────────────────── */

.gallery-info-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 3rem 2.5rem 2rem;
  background: linear-gradient(to top, rgba(0,0,0,0.95) 0%, rgba(0,0,0,0.6) 60%, transparent 100%);
  pointer-events: none;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity var(--transition-normal), transform var(--transition-normal);
  z-index: 10;
}

.gallery-info-overlay.visible {
  opacity: 1;
  transform: translateY(0);
}

.gallery-info-title {
  font-size: clamp(1.2rem, 2.5vw, 2rem);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: #ffffff;
  text-shadow: 0 0 40px rgba(124, 58, 237, 0.5);
  margin-bottom: 0.3rem;
}

.gallery-info-meta {
  font-size: clamp(0.75rem, 1.2vw, 0.95rem);
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 400;
}

/* ─── CMS Corner Link ──────────────────────────────────────────────────────── */

#cms-link {
  position: fixed;
  top: 1.25rem;
  right: 1.5rem;
  z-index: 100;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-dim);
  text-decoration: none;
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

#cms-link:hover {
  color: var(--color-text);
  border-color: var(--color-accent);
}

/* ─── Gallery Title (top-left branding) ────────────────────────────────────── */

#gallery-title {
  position: fixed;
  top: 1.25rem;
  left: 1.5rem;
  z-index: 100;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-dim);
  pointer-events: none;
}

/* ─── Admin Page Styles ─────────────────────────────────────────────────────── */

body.admin-page {
  overflow: auto;
  background: var(--color-bg);
}

.admin-container {
  max-width: 860px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

.admin-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 2rem;
}

.admin-header h1 {
  font-size: 1.15rem;
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text);
  font-weight: 500;
}

.admin-header a {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-text-dim);
  text-decoration: none;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.admin-header a:hover {
  color: var(--color-accent);
}

.admin-section {
  margin-bottom: 2.5rem;
}

.admin-section h2 {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

/* ─── Image List ───────────────────────────────────────────────────────────── */

#image-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.image-item {
  display: grid;
  grid-template-columns: 64px 1fr auto;
  gap: 1rem;
  align-items: center;
  padding: 0.75rem 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast);
}

.image-item:hover {
  border-color: #2a2a2a;
}

.image-thumb {
  width: 64px;
  height: 48px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  background: #111;
}

.image-info {
  min-width: 0;
}

.image-info .title {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.image-info .meta {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  margin-top: 0.15rem;
}

.image-info .src {
  font-size: 0.65rem;
  color: var(--color-text-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 0.15rem;
}

/* ─── Buttons ──────────────────────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background: #6d28d9;
  border-color: #6d28d9;
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  border-color: var(--color-border);
}

.btn-ghost:hover {
  color: var(--color-text);
  border-color: #333;
}

.btn-danger {
  background: transparent;
  color: var(--color-danger);
  border-color: transparent;
  font-size: 0.75rem;
  padding: 0.35rem 0.6rem;
}

.btn-danger:hover {
  background: rgba(239, 68, 68, 0.1);
  border-color: var(--color-danger);
}

/* ─── Form ─────────────────────────────────────────────────────────────────── */

.add-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  padding: 1.25rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.add-form .form-group {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.add-form .form-group.full-width {
  grid-column: 1 / -1;
}

.add-form label {
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-dim);
  font-family: var(--font-mono);
}

.add-form input {
  background: #000;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  font-family: var(--font-sans);
  outline: none;
  transition: border-color var(--transition-fast);
}

.add-form input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px var(--color-accent-glow);
}

.add-form input::placeholder {
  color: var(--color-text-dim);
}

.form-actions {
  grid-column: 1 / -1;
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  padding-top: 0.25rem;
}

/* ─── Export Area ──────────────────────────────────────────────────────────── */

.export-area {
  margin-top: 1rem;
}

.export-json-output {
  display: none;
  margin-top: 0.75rem;
  background: #050505;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.export-json-output.visible {
  display: block;
}

.export-json-output pre {
  padding: 1rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: #888;
  overflow: auto;
  max-height: 320px;
  white-space: pre;
}

.export-copy-bar {
  display: flex;
  justify-content: flex-end;
  padding: 0.5rem 0.75rem;
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
}

/* ─── Toast notification ────────────────────────────────────────────────────── */

.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.6rem 1.2rem;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--color-text);
  opacity: 0;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  pointer-events: none;
  z-index: 9999;
  white-space: nowrap;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ─── Empty state ───────────────────────────────────────────────────────────── */

.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--color-text-dim);
  font-size: 0.85rem;
  font-family: var(--font-mono);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
}

/* ─── Scrollbar (admin page) ─────────────────────────────────────────────── */

::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: #333;
}