/* ================================================================
   REVERIE — Design Tokens & Styles
   ================================================================
   SINGLE SOURCE OF TRUTH for all visual values.
   - Brand colors: fixed across themes
   - Semantic colors: switch with .light-mode class
   - Typography, spacing, radii, transitions: theme-independent

   Rule: NO hardcoded color/font values outside this :root block.
   Every component uses var(--token-name) exclusively.
   ================================================================ */

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

:root {
  /* --- Brand Colors (fixed) --- */
  --ink:           #181714;
  --paper:         #f4f0e8;
  --gold:          #c8a96e;
  --mid:           #7a7670;
  --night:         #1c1a17;

  /* --- Semantic Colors: Dark (default) --- */
  --bg:            var(--night);
  --bg-surface:    rgba(20, 20, 20, 0.95);
  --bg-overlay:    rgba(0, 0, 0, 0.3);
  --fg:            rgba(255, 255, 255, 0.75);
  --fg-strong:     rgba(255, 255, 255, 0.9);
  --fg-dim:        rgba(255, 255, 255, 0.45);
  --fg-muted:      rgba(255, 255, 255, 0.25);
  --border:        rgba(255, 255, 255, 0.1);
  --border-strong: rgba(255, 255, 255, 0.25);
  --control-bg:    rgba(255, 255, 255, 0.08);
  --control-hover: rgba(255, 255, 255, 0.14);
  --control-active:rgba(255, 255, 255, 0.22);
  --control-border:rgba(255, 255, 255, 0.15);
  --slider-accent: rgba(255, 255, 255, 0.5);
  --fav-color:     #e55;
  --thumb-gradient: linear-gradient(transparent, rgba(0,0,0,0.5));
  --thumb-text:    rgba(255, 255, 255, 0.7);
  --fab-bg:        rgba(0, 0, 0, 0.45);

  /* --- Typography --- */
  --font-display:  'Cormorant Garamond', Georgia, serif;
  --font-ui:       'DM Sans', system-ui, sans-serif;

  /* --- Spacing --- */
  --space-xs:  0.25rem;
  --space-sm:  0.5rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2rem;

  /* --- Radii --- */
  --radius-sm:   2px;
  --radius-md:   4px;
  --radius-lg:   8px;
  --radius-full: 50%;

  /* --- Transitions --- */
  --t-fast:   0.15s ease;
  --t-normal: 0.3s ease;
  --t-slow:   0.8s ease;
}

/* --- Light Mode: one block overrides all semantic tokens --- */
.light-mode {
  --bg:            var(--paper);
  --bg-surface:    rgba(244, 240, 232, 0.95);
  --bg-overlay:    rgba(0, 0, 0, 0.15);
  --fg:            rgba(24, 23, 20, 0.75);
  --fg-strong:     rgba(24, 23, 20, 0.9);
  --fg-dim:        rgba(24, 23, 20, 0.45);
  --fg-muted:      rgba(24, 23, 20, 0.2);
  --border:        rgba(24, 23, 20, 0.1);
  --border-strong: rgba(24, 23, 20, 0.2);
  --control-bg:    rgba(24, 23, 20, 0.06);
  --control-hover: rgba(24, 23, 20, 0.1);
  --control-active:rgba(24, 23, 20, 0.18);
  --control-border:rgba(24, 23, 20, 0.15);
  --slider-accent: rgba(24, 23, 20, 0.4);
  --fav-color:     #c33;
  --thumb-gradient: linear-gradient(transparent, rgba(255,255,255,0.5));
  --thumb-text:    rgba(24, 23, 20, 0.7);
  --fab-bg:        rgba(0, 0, 0, 0.15);
}


/* ================================================================
   BASE
   ================================================================ */

html, body {
  height: 100%; width: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-ui);
  -webkit-tap-highlight-color: transparent;
  touch-action: none;
}

.screen { position: absolute; inset: 0; }
.hidden { display: none !important; }


/* ================================================================
   SCREEN Z-ORDER & TRANSITIONS
   ================================================================ */

#catalog { z-index: 2; background: var(--bg); overflow-y: auto; max-height: 100vh; }
#session { z-index: 1; }
#session.bloom-active { z-index: 3; }
#session.bloom-active #gl-canvas { background: transparent; }

#catalog.transitioning {
  transition: opacity 2s ease;
  opacity: 0;
  pointer-events: none;
}

.catalog-item.zooming {
  position: fixed !important;
  z-index: 100;
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 0;
  overflow: hidden;
}


/* ================================================================
   CATALOG SCREEN
   ================================================================ */

.catalog-header {
  padding: var(--space-xl) var(--space-lg) var(--space-md);
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.catalog-header h1 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.6rem;
  letter-spacing: 0.1em;
  color: var(--fg);
}
.catalog-subtitle {
  font-family: var(--font-ui);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--fg-dim);
  margin-top: var(--space-xs);
}

/* Hamburger */
.catalog-menu-btn {
  position: absolute;
  left: var(--space-lg);
  top: var(--space-xl);
  background: none;
  border: none;
  color: var(--fg-dim);
  font-size: 1.3rem;
  cursor: pointer;
  padding: var(--space-xs);
  transition: color var(--t-fast);
}
.catalog-menu-btn:hover { color: var(--fg); }

/* Grid size slider */
.grid-size-slider {
  position: absolute;
  right: var(--space-lg);
  top: var(--space-xl);
  width: 80px;
  accent-color: var(--slider-accent);
  opacity: 0.5;
  transition: opacity 0.2s;
}
.grid-size-slider:hover { opacity: 0.8; }


/* ================================================================
   CATALOG SECTIONS & GRID
   ================================================================ */

.catalog-section {
  padding: 0 var(--space-lg);
  margin-bottom: var(--space-md);
}
.section-title {
  font-family: var(--font-ui);
  font-weight: 400;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fg-dim);
  margin-bottom: 0.6rem;
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
  padding: var(--space-md) var(--space-lg) var(--space-xl);
  overflow-y: auto;
  max-height: calc(100vh - 5rem);
}
.catalog-item {
  aspect-ratio: 1;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  opacity: 0.85;
  transition: opacity var(--t-normal), transform var(--t-normal);
}
.catalog-item:hover { opacity: 1; transform: scale(1.03); }
.catalog-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}

/* Preset grid */
.preset-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, 160px);
  gap: 12px;
  justify-content: center;
}
.preset-thumb {
  position: relative;
  aspect-ratio: 1;
  overflow: visible;
  cursor: pointer;
  opacity: 0;
  transform: translateY(8px);
}
.preset-thumb.thumb-ready {
  animation: thumbAppear 0.4s ease forwards;
}
@keyframes thumbAppear {
  to { opacity: 0.85; transform: translateY(0); }
}
@keyframes selectPulse {
  0%, 100% { opacity: 0.6; transform: translate(-50%,-50%) scale(1); }
  50% { opacity: 1; transform: translate(-50%,-50%) scale(1.04); }
}
@keyframes selectSpin {
  to { transform: translate(-50%,-50%) rotate(360deg); }
}
.preset-thumb:hover { opacity: 1 !important; transform: scale(1.03); }
.preset-thumb canvas {
  width: 100%; height: 100%;
  display: block;
  border-radius: 50%;
  mask-image: radial-gradient(circle, black var(--thumb-mask-inner, 37%), transparent var(--thumb-mask-outer, 60%));
  -webkit-mask-image: radial-gradient(circle, black var(--thumb-mask-inner, 37%), transparent var(--thumb-mask-outer, 60%));
}

/* Preset thumb overlays */
.preset-thumb-name {
  position: absolute;
  bottom: -2px; left: 0; right: 0;
  padding: var(--space-xs) 0;
  font-family: var(--font-display);
  font-size: 0.7rem;
  color: var(--fg-dim);
  text-align: center;
  background: none;
  pointer-events: none;
}
.preset-thumb-fav {
  position: absolute;
  top: var(--space-xs); left: var(--space-xs);
  background: none; border: none;
  font-size: 1rem;
  cursor: pointer;
  color: var(--fg-muted);
  opacity: 0.5;
  transition: color 0.3s ease, opacity 0.3s ease;
  z-index: 2;
  padding: var(--space-xs);
  line-height: 1;
}
.preset-thumb-fav:hover { opacity: 0.8; }
.preset-thumb-fav.is-fav { color: #c47; opacity: 0.7; }

.preset-thumb-config {
  position: absolute;
  bottom: var(--space-xs); right: var(--space-xs);
  background: none; border: none;
  font-size: 1rem;
  color: var(--fg-muted);
  cursor: pointer;
  z-index: 2;
  padding: var(--space-xs);
  line-height: 1;
  text-shadow: 0 1px 3px rgba(0,0,0,0.5);
  transition: color 0.2s;
}
.preset-thumb-config:hover { color: var(--fg-strong); }

/* Context menu */
.preset-context-menu {
  position: absolute;
  bottom: 2rem; right: 0.3rem;
  background: var(--bg-surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  z-index: 10;
  display: flex;
  flex-direction: column;
  min-width: 100px;
  overflow: hidden;
}
.preset-context-menu button {
  background: none; border: none;
  color: var(--fg);
  font-family: var(--font-ui);
  font-size: 0.8rem;
  padding: var(--space-sm) var(--space-md);
  text-align: left;
  cursor: pointer;
  transition: background var(--t-fast);
}
.preset-context-menu button:hover { background: var(--control-hover); }
.preset-context-menu .context-menu-danger { color: var(--fav-color); }
.preset-context-menu .context-menu-danger:hover { background: rgba(229,85,85,0.15); }
.preset-context-menu .context-menu-toggle {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.preset-context-menu .context-menu-check {
  opacity: 0.4;
  margin-left: var(--space-md);
}
.preset-context-menu .context-menu-toggle.active .context-menu-check {
  opacity: 1;
}

/* Dev section */
.dev-section {
  margin-top: var(--space-xl);
  padding-top: var(--space-md);
  border-top: 1px solid var(--border);
}
.dev-title {
  opacity: 0.4;
  font-size: 0.8rem;
}


/* ================================================================
   CATALOG HAMBURGER MENU
   ================================================================ */

.catalog-menu {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: 300px;
  background: var(--bg-surface);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-right: 1px solid var(--border);
  z-index: 50;
  padding: var(--space-xl) var(--space-lg);
  transform: translateX(-100%);
  transition: transform var(--t-normal);
  overflow-y: auto;
  -webkit-user-select: none;
  user-select: none;
  display: flex;
  flex-direction: column;
}
.catalog-menu.open { transform: translateX(0); }

.catalog-menu-backdrop {
  position: fixed;
  inset: 0;
  z-index: 45;
  background: var(--bg-overlay);
}

.catalog-menu h2 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--fg-strong);
  margin-bottom: var(--space-xs);
}
.menu-brand {
  margin-bottom: 0;
}
.menu-brand-divider {
  height: 1px;
  background: var(--gold);
  margin: var(--space-xs) 0 var(--space-lg);
}

/* Menu sections */
.menu-section {
  margin-bottom: var(--space-lg);
}
.menu-section-title {
  font-family: var(--font-ui);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--fg-dim);
  margin-bottom: var(--space-sm);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--border);
}
.menu-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) 0;
  font-family: var(--font-ui);
  font-size: 0.85rem;
  color: var(--fg);
  cursor: pointer;
  transition: color var(--t-fast);
}
.menu-item:hover { color: var(--fg-strong); }
.menu-item-primary {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--fg-strong);
}
.menu-item .meta { font-size: 0.7rem; color: var(--fg-dim); }
.menu-item .arrow { color: var(--fg-dim); font-size: 0.7rem; }
.menu-item-dim { color: var(--fg-dim); }

.menu-footer-group {
  margin-top: auto;
  padding-top: var(--space-md);
}
.menu-footer-link {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  color: var(--fg-dim);
  cursor: pointer;
  padding: 3px 0;
  transition: color var(--t-fast);
}
.menu-footer-link:hover { color: var(--fg); }

/* Content overlays (editor + viewer) — fade transition */
.content-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg);
  overflow-y: auto;
  padding: var(--space-lg);
  opacity: 1;
  visibility: visible;
  transition: opacity 0.4s ease, visibility 0s 0s;
  display: block !important; /* override global .hidden display:none */
}
.content-overlay.closed {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.4s ease, visibility 0s 0.4s;
}

.catalog-menu-actions {
  margin-top: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

/* About text in menu */
.about-text {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-style: italic;
  line-height: 1.7;
  color: var(--fg);
  padding: var(--space-sm) 0;
}
.about-text p { margin-bottom: var(--space-md); }
.about-text .coda {
  font-style: normal;
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--fg-dim);
}


/* ================================================================
   SETTINGS (in menu)
   ================================================================ */

.settings-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-xs) var(--space-md);
  align-items: center;
  padding: var(--space-sm) 0;
  font-size: 0.8rem;
}
.settings-grid label { color: var(--fg-dim); font-family: var(--font-ui); }
.settings-input {
  background: var(--control-bg);
  border: 1px solid var(--control-border);
  color: var(--fg);
  font-family: var(--font-ui);
  font-size: 0.8rem;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  outline: none;
  max-width: 200px;
}
.settings-input:focus { border-color: var(--border-strong); }

.settings-toggle {
  /* Reused for appearance toggle in settings */
}

.settings-dev {
  margin-top: var(--space-sm);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--border);
}
.settings-dev summary {
  font-size: 0.8rem;
  color: var(--fg-dim);
  cursor: pointer;
  opacity: 0.6;
  font-family: var(--font-ui);
}


/* ================================================================
   SESSION SCREEN
   ================================================================ */

#gl-canvas {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  display: block;
  clip-path: circle(150% at center);
}
#gl-canvas.bloom-in {
  clip-path: circle(0% at center);
  transition: none;
}
#gl-canvas.bloom-animate {
  clip-path: circle(150% at center);
  transition: clip-path 2s ease-out;
}


/* ================================================================
   FABs
   ================================================================ */

.fab-hidden { opacity: 0 !important; pointer-events: none !important; }
.fab-fadein { transition: opacity 1.5s ease; }

/* User FAB — top left */
.user-fab {
  position: absolute;
  top: var(--space-md); left: var(--space-md);
  width: 44px; height: 44px;
  border-radius: var(--radius-full);
  background: var(--fab-bg);
  border: 1px solid var(--border-strong);
  color: var(--fg);
  font-size: 1.3rem;
  cursor: pointer;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: opacity var(--t-slow), background 0.2s;
}
.user-fab:hover { background: var(--control-hover); }
.user-fab.faded { opacity: 0.15; }
#session.user-open .user-fab { opacity: 0; pointer-events: none; }

/* Creator FAB — top right */
.creator-fab {
  position: absolute;
  top: var(--space-md); right: var(--space-md);
  width: 44px; height: 44px;
  border-radius: var(--radius-full);
  background: var(--fab-bg);
  border: 1px solid var(--border-strong);
  color: var(--fg);
  font-size: 1.2rem;
  cursor: pointer;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: opacity var(--t-slow), background 0.2s;
}
.creator-fab:hover { background: var(--control-hover); }
#session.sidebar-open .creator-fab { opacity: 0; pointer-events: none; }


/* ================================================================
   USER PANEL — renders as BOTTOM SHEET
   Same IDs as before (#user-panel, .user-open), different layout.
   ================================================================ */

.user-backdrop {
  position: absolute;
  inset: 0;
  z-index: 25;
  background: var(--bg-overlay);
}

.user-panel {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: var(--bg-surface);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--border);
  border-radius: 12px 12px 0 0;
  z-index: 30;
  padding: var(--space-lg);
  padding-bottom: calc(var(--space-lg) + env(safe-area-inset-bottom, 0px));
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  align-items: center;
  transform: translateY(100%);
  transition: transform var(--t-normal);
}
#session.user-open .user-panel {
  transform: translateY(0);
}

/* Bottom sheet handle */
.user-panel-handle {
  width: 36px;
  height: 4px;
  border-radius: 2px;
  background: var(--fg-muted);
  margin-bottom: var(--space-sm);
  flex-shrink: 0;
}

/* Bottom sheet preset title */
.user-panel-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--fg-strong);
  margin-bottom: var(--space-sm);
}

/* Duration pills row */
.duration-pills {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}
.duration-pill {
  padding: var(--space-sm) var(--space-md);
  border-radius: 20px;
  background: var(--control-bg);
  border: 1px solid var(--control-border);
  color: var(--fg);
  font-family: var(--font-ui);
  font-size: 0.8rem;
  cursor: pointer;
  transition: background var(--t-fast), border-color var(--t-fast);
}
.duration-pill.active {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
}

/* Sheet rows */
.sheet-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 320px;
  padding: var(--space-sm) 0;
  font-family: var(--font-ui);
  font-size: 0.85rem;
  color: var(--fg);
}


/* ================================================================
   CREATOR SIDEBAR — right side, as before
   ================================================================ */

.sidebar {
  position: absolute;
  top: 0; right: 0; bottom: 0;
  width: 280px;
  background: var(--bg-surface);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-left: 1px solid var(--border);
  z-index: 30;
  overflow-y: auto;
  padding: var(--space-md) var(--space-sm);
  transform: translateX(100%);
  transition: transform var(--t-normal);
  -webkit-user-select: none;
  user-select: none;
}
#session.sidebar-open .sidebar {
  transform: translateX(0);
}

.sidebar-backdrop {
  position: absolute;
  inset: 0;
  z-index: 25;
  background: transparent;
}

.sidebar-section {
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--border);
}
.sidebar-section:last-child { border-bottom: none; }

.sidebar-label {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--fg-dim);
  margin-bottom: var(--space-xs);
}
.sidebar-row {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  flex-wrap: wrap;
  margin-bottom: 0.3rem;
}
.sidebar-toggles {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin-bottom: var(--space-xs);
}
.sidebar-slider {
  width: 100%;
  accent-color: var(--slider-accent);
  margin-bottom: 0.3rem;
}
.sidebar-input {
  flex: 1;
  background: var(--control-bg);
  border: 1px solid var(--control-border);
  color: var(--fg);
  font-family: var(--font-ui);
  font-size: 0.8rem;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  outline: none;
}
.sidebar-input:focus { border-color: var(--border-strong); }
.sidebar-dim {
  font-size: 0.75rem;
  color: var(--fg-dim);
  min-width: 2.5em;
}


/* ================================================================
   SHARED CONTROLS
   ================================================================ */

.ctrl-btn, .ctrl-toggle {
  background: var(--control-bg);
  border: 1px solid var(--control-border);
  color: var(--fg);
  font-family: var(--font-ui);
  font-size: 0.85rem;
  padding: var(--space-xs) var(--space-sm);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background 0.2s;
}
.ctrl-btn:hover, .ctrl-toggle:hover { background: var(--control-hover); }
.ctrl-toggle.active {
  background: var(--control-active);
  border-color: var(--border-strong);
}

.ctrl-group {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}
#axes-label {
  font-size: 0.8rem;
  min-width: 5em;
  color: var(--fg-dim);
  font-family: var(--font-ui);
}

.catalog-btn {
  background: var(--control-bg);
  border: 1px solid var(--control-border);
  color: var(--fg-dim);
  font-family: var(--font-ui);
  font-size: 0.75rem;
  padding: var(--space-xs) var(--space-sm);
  cursor: pointer;
  border-radius: var(--radius-sm);
}
.catalog-btn:hover { background: var(--control-hover); color: var(--fg); }


/* ================================================================
   PRESET SAVE FORM
   ================================================================ */

.preset-save-form {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}
.preset-input {
  background: var(--control-bg);
  border: 1px solid var(--control-border);
  color: var(--fg);
  font-family: var(--font-ui);
  font-size: 0.85rem;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  width: 140px;
  outline: none;
}
.preset-input:focus { border-color: var(--border-strong); }


/* ================================================================
   AFFIRMATION OVERLAY
   ================================================================ */

.affirmation {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  z-index: 5;
  mix-blend-mode: soft-light;
}
.affirmation span {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 5vw, 4rem);
  font-weight: 400;
  font-style: italic;
  color: white;
  text-align: center;
  letter-spacing: 0.05em;
  max-width: 80%;
  line-height: 1.4;
  animation: affirmPulse var(--affirm-duration, 10s) ease-in-out infinite;
}
@keyframes affirmPulse {
  0%, 100% { opacity: 0; }
  20%, 80% { opacity: 0.85; }
}

.affirm-edit {
  display: flex;
  align-items: center;
}
.affirm-edit .preset-input { width: 180px; }


/* ================================================================
   COLLECTION MANAGER (new screen)
   ================================================================ */

#collection-manager,
#artwork-manager {
  z-index: 2;
  background: var(--bg);
  overflow-y: auto;
  overflow-anchor: none;
  padding: 0 var(--space-lg) var(--space-xl);
}

.cm-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg) 0 var(--space-md);
  margin-bottom: var(--space-lg);
}
.cm-header.sticky {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--space-lg);
}

@keyframes blockMovedHighlight {
  0%   { box-shadow: 0 0 0 3px var(--gold); }
  100% { box-shadow: 0 0 0 3px transparent; }
}
.block-just-moved {
  animation: blockMovedHighlight 2s ease-out forwards;
}
.cm-header h1 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.4rem;
  color: var(--fg-strong);
}
.cm-back {
  background: none; border: none;
  color: var(--fg-dim);
  font-size: 1.2rem;
  cursor: pointer;
  font-family: var(--font-ui);
  transition: color var(--t-fast);
}
.cm-back:hover { color: var(--fg); }

.cm-card {
  background: var(--control-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  margin-bottom: var(--space-md);
}
.cm-card.editing {
  border-color: var(--gold);
  border-style: dashed;
}
.cm-card h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.2rem;
  color: var(--fg-strong);
}
.cm-card .cm-desc {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--fg-dim);
  margin-top: var(--space-xs);
  line-height: 1.5;
}
.cm-card .cm-meta {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  color: var(--fg-muted);
  margin-top: var(--space-sm);
}

.cm-presets {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-top: var(--space-md);
}
.cm-preset-thumb {
  width: 60px; height: 60px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 2px solid transparent;
  cursor: pointer;
  position: relative;
}
.cm-preset-thumb.in-collection { border-color: var(--gold); }
.cm-preset-thumb .checkmark {
  position: absolute;
  top: 2px; right: 2px;
  font-size: 0.7rem;
  color: var(--gold);
}

.cm-actions {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.cm-input {
  background: var(--control-bg);
  border: 1px solid var(--control-border);
  color: var(--fg);
  font-family: var(--font-ui);
  font-size: 0.85rem;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  width: 100%;
  outline: none;
}
.cm-input:focus { border-color: var(--gold); }
.cm-input::placeholder { color: var(--fg-muted); }
textarea.cm-input {
  resize: vertical;
  min-height: 60px;
  line-height: 1.5;
}

.cm-btn {
  background: var(--control-bg);
  border: 1px solid var(--control-border);
  color: var(--fg);
  font-family: var(--font-ui);
  font-size: 0.8rem;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--t-fast);
}
.cm-btn:hover { background: var(--control-hover); }
.cm-btn.primary {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
}
.cm-btn.danger {
  color: var(--fav-color);
  border-color: var(--fav-color);
}

/* ================================================================
   COLLECTION HEADER (catalog, when collection filter active)
   ================================================================ */

.collection-header {
  padding: var(--space-md) 0 var(--space-lg);
}
.collection-header-name {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.5rem;
  color: var(--fg-strong);
  letter-spacing: 0.04em;
  margin-bottom: var(--space-xs);
}
.collection-header-desc {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-style: italic;
  color: var(--fg-dim);
  line-height: 1.6;
  max-width: 500px;
  margin-bottom: var(--space-md);
  white-space: pre-line;
}
.collection-header-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}
.collection-header-source-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--fg-dim);
  font-family: var(--font-ui);
  font-size: 0.75rem;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: color var(--t-fast), border-color var(--t-fast);
}
.collection-header-source-btn:hover {
  color: var(--fg);
  border-color: var(--border-strong);
}
.collection-header-count {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  color: var(--fg-muted);
}


/* ================================================================
   SOURCE DRAWINGS GALLERY
   ================================================================ */

.source-gallery-overlay {
  position: fixed;
  inset: 0;
  z-index: 55;
  background: var(--bg-overlay);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow-y: auto;
}
.source-gallery {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  max-width: 600px;
  width: 90%;
  max-height: 85vh;
  overflow-y: auto;
}
.source-gallery-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.3rem;
  color: var(--fg-strong);
  margin-bottom: var(--space-xs);
}
.source-gallery-subtitle {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-lg);
}
.source-gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}
.source-gallery-item {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--control-bg);
}
.source-gallery-item img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  display: block;
}
.source-gallery-label {
  font-family: var(--font-display);
  font-size: 0.8rem;
  color: var(--fg-dim);
  padding: var(--space-xs) var(--space-sm);
}
.source-gallery-close {
  display: block;
  width: 100%;
  background: var(--control-bg);
  border: 1px solid var(--control-border);
  color: var(--fg);
  font-family: var(--font-ui);
  font-size: 0.85rem;
  padding: var(--space-sm);
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-align: center;
}
.source-gallery-close:hover {
  background: var(--control-hover);
}


/* CM section labels */
.cm-section-label {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  color: var(--fg-dim);
  margin-bottom: var(--space-sm);
}


/* ================================================================
   ARTWORK LIGHTBOX — full-screen, museum-style
   ================================================================ */

.artwork-lightbox {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: rgba(0, 0, 0, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.artwork-lightbox-frame {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 85vw;
  max-height: 85vh;
  cursor: default;
}
.artwork-lightbox-img {
  max-width: 85vw;
  max-height: 70vh;
  object-fit: contain;
  border-radius: var(--radius-sm);
  box-shadow: 0 8px 60px rgba(0, 0, 0, 0.6);
}
.artwork-lightbox-meta {
  margin-top: var(--space-lg);
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}
.artwork-lightbox-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-style: italic;
  color: rgba(255, 255, 255, 0.85);
  display: block;
}
.artwork-lightbox-details {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.45);
  display: block;
}
.artwork-lightbox-nav {
  display: flex;
  gap: var(--space-xl);
  margin-top: var(--space-md);
}
.artwork-lightbox-nav-btn {
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.6);
  font-size: 1.5rem;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--t-fast), border-color var(--t-fast);
}
.artwork-lightbox-nav-btn:hover {
  color: rgba(255, 255, 255, 0.9);
  border-color: rgba(255, 255, 255, 0.4);
}


/* CM animated thumbnails — override size for compact display */
.cm-preset-animated {
  width: 80px !important;
  height: 80px !important;
  flex-shrink: 0;
}
.cm-preset-animated .preset-thumb-name {
  font-size: 0.6rem;
}

/* CM Live Preview Overlay */
.cm-preview-overlay {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: var(--bg-overlay);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
}
.cm-preview-canvas {
  width: 256px;
  height: 256px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}
.cm-preview-label {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--fg-strong);
}

.cm-export-row {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--border);
}


/* ================================================================
   ABOUT PANEL (overlay in menu)
   ================================================================ */

.about-panel {
  display: none;
}
.about-panel.open {
  display: block;
}
.about-panel .about-text {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-style: italic;
  line-height: 1.7;
  color: var(--fg);
}
.about-panel .about-text p { margin-bottom: var(--space-md); }
.about-panel .about-coda {
  font-style: normal;
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--fg-dim);
}
.about-panel .about-footer,
.about-footer {
  margin-top: var(--space-xl);
  padding-top: var(--space-md);
  border-top: 1px solid var(--border);
}
.about-panel .about-footer .creator,
.about-footer .creator {
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--fg-dim);
}
.about-panel .about-footer .version,
.about-footer .version {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  color: var(--fg-muted);
  margin-top: var(--space-xs);
}


/* ================================================================
   MINIMAP
   ================================================================ */

.minimap {
  position: absolute;
  bottom: var(--space-md); left: var(--space-md);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  background: rgba(0,0,0,0.5);
  z-index: 10;
}


/* ================================================================
   NIGHT MODE COMPAT
   Existing JS toggles .night-mode on #catalog and #session.
   We map it to .light-mode tokens so both systems work.
   ================================================================ */

#catalog.night-mode,
#session.night-mode,
#session.night-mode .sidebar,
#session.night-mode .user-panel,
#collection-manager.night-mode,
#artwork-manager.night-mode {
  --bg:            var(--paper);
  --bg-surface:    rgba(244, 240, 232, 0.95);
  --bg-overlay:    rgba(0, 0, 0, 0.15);
  --fg:            rgba(24, 23, 20, 0.75);
  --fg-strong:     rgba(24, 23, 20, 0.9);
  --fg-dim:        rgba(24, 23, 20, 0.45);
  --fg-muted:      rgba(24, 23, 20, 0.2);
  --border:        rgba(24, 23, 20, 0.1);
  --border-strong: rgba(24, 23, 20, 0.2);
  --control-bg:    rgba(24, 23, 20, 0.06);
  --control-hover: rgba(24, 23, 20, 0.1);
  --control-active:rgba(24, 23, 20, 0.18);
  --control-border:rgba(24, 23, 20, 0.15);
  --slider-accent: rgba(24, 23, 20, 0.4);
  --fav-color:     #c33;
  --thumb-gradient: linear-gradient(transparent, rgba(255,255,255,0.5));
  --thumb-text:    rgba(24, 23, 20, 0.7);
  --fab-bg:        rgba(0, 0, 0, 0.15);
}

#catalog.night-mode { background: var(--bg); color: var(--fg); }

#session.night-mode .user-fab,
#session.night-mode .creator-fab {
  background: var(--fab-bg);
  border-color: var(--border-strong);
  color: var(--fg-dim);
}

#session.night-mode .sidebar .sidebar-slider,
#catalog.night-mode .grid-size-slider {
  accent-color: var(--slider-accent);
}