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

:root {
  --bg: #1a1a1a;
  --fg: rgba(255,255,255,0.75);
  --fg-dim: rgba(255,255,255,0.45);
  --accent: rgba(255,255,255,0.12);
  --font: Georgia, 'Times New Roman', serif;
}

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

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

/* --- Screen z-ordering during transitions ---
   Catalog sits above session so it can fade out (crossfade/fadebloom),
   while the kaleidoscope renders behind it and becomes visible. */
#catalog { z-index: 2; background: var(--bg); overflow-y: auto; max-height: 100vh; }
#session  { z-index: 1; }
/* Bloom/Fadebloom: Session über Katalog, Canvas-Clip zeigt Katalog durch */
#session.bloom-active { z-index: 3; }
#session.bloom-active #gl-canvas { background: transparent; }

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

/* Zoom-in transition: thumbnail expands to fullscreen */
.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 --- */
.catalog-header {
  padding: 2rem 1.5rem 1rem;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.catalog-header h1 {
  font-weight: 400;
  font-size: 1.6rem;
  letter-spacing: 0.08em;
  color: var(--fg);
}
.catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
  padding: 1rem 1.5rem 2rem;
  overflow-y: auto;
  max-height: calc(100vh - 5rem);
}
.catalog-item {
  aspect-ratio: 1;
  border-radius: 4px;
  overflow: hidden;
  cursor: pointer;
  opacity: 0.85;
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.catalog-item:hover { opacity: 1; transform: scale(1.03); }
.catalog-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}

/* --- Catalog menu button (hamburger) --- */
.catalog-menu-btn {
  position: absolute;
  left: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--fg);
  font-size: 1.4rem;
  cursor: pointer;
  padding: 0.3rem;
  opacity: 0.7;
  transition: opacity 0.2s;
}
.catalog-menu-btn:hover { opacity: 1; }

/* --- Grid size slider (rechts oben) --- */
.grid-size-slider {
  position: absolute;
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
  width: 80px;
  accent-color: rgba(255,255,255,0.4);
  opacity: 0.5;
  transition: opacity 0.2s;
}
.grid-size-slider:hover { opacity: 0.8; }

/* --- Catalog sections --- */
.catalog-section {
  padding: 0 1.5rem;
  margin-bottom: 1rem;
}
.section-title {
  font-weight: 400;
  font-size: 0.9rem;
  color: var(--fg-dim);
  letter-spacing: 0.05em;
  margin-bottom: 0.6rem;
}

/* --- Preset thumbnail grid --- */
.preset-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, 160px);
  gap: 12px;
  justify-content: center;
}
.preset-thumb {
  position: relative;
  aspect-ratio: 1;
  border-radius: 4px;
  overflow: hidden;
  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); }
}
.preset-thumb:hover { opacity: 1 !important; transform: scale(1.03); }
.preset-thumb canvas {
  width: 100%;
  height: 100%;
  display: block;
}
.preset-thumb-name {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 0.4rem 0.5rem;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.7);
  background: linear-gradient(transparent, rgba(0,0,0,0.5));
  pointer-events: none;
}

/* --- Favorite heart icon --- */
.preset-thumb-fav {
  position: absolute;
  top: 0.4rem;
  left: 0.4rem;
  background: none;
  border: none;
  font-size: 1.1rem;
  cursor: pointer;
  color: rgba(255,255,255,0.5);
  text-shadow: 0 1px 3px rgba(0,0,0,0.5);
  transition: color 0.2s, transform 0.15s;
  z-index: 2;
  padding: 0.2rem;
  line-height: 1;
}
.preset-thumb-fav:hover { color: rgba(255,255,255,0.8); transform: scale(1.15); }
.preset-thumb-fav.is-fav { color: #e55; }

/* --- Config icon (disabled placeholder) --- */
.preset-thumb-config {
  position: absolute;
  bottom: 0.4rem;
  right: 0.4rem;
  background: none;
  border: none;
  font-size: 1rem;
  color: rgba(255,255,255,0.5);
  cursor: pointer;
  z-index: 2;
  padding: 0.2rem;
  line-height: 1;
  text-shadow: 0 1px 3px rgba(0,0,0,0.5);
  transition: color 0.2s;
}
.preset-thumb-config:hover { color: rgba(255,255,255,0.9); }

/* --- Preset context menu (⋮ dropdown) --- */
.preset-context-menu {
  position: absolute;
  bottom: 2rem;
  right: 0.3rem;
  background: rgba(20,20,20,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 4px;
  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);
  font-size: 0.8rem;
  padding: 0.5rem 0.8rem;
  text-align: left;
  cursor: pointer;
  transition: background 0.15s;
}
.preset-context-menu button:hover {
  background: rgba(255,255,255,0.1);
}
.preset-context-menu .context-menu-danger {
  color: #e55;
}
.preset-context-menu .context-menu-danger:hover {
  background: rgba(229,85,85,0.15);
}

/* --- Dev section separator --- */
.dev-section {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255,255,255,0.1);
}
.dev-title {
  opacity: 0.4;
  font-size: 0.8rem;
}

/* --- Catalog hamburger menu (slides from left) --- */
.catalog-menu {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 300px;
  background: rgba(20,20,20,0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-right: 1px solid rgba(255,255,255,0.1);
  z-index: 50;
  padding: 2rem 1.5rem;
  transform: translateX(-100%);
  transition: transform 0.3s ease;
  overflow-y: auto;
}
.catalog-menu.open {
  transform: translateX(0);
}
.catalog-menu-backdrop {
  position: fixed;
  inset: 0;
  z-index: 45;
  background: rgba(0,0,0,0.3);
}
.catalog-menu-actions {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

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

/* --- Creator Zone — invisible long-press area --- */
/* --- FABs: hidden during transition, fade in after --- */
.fab-hidden { opacity: 0 !important; pointer-events: none !important; }
.fab-fadein { transition: opacity 1.5s ease; }


/* --- User FAB — top left, clearly visible --- */
.user-fab {
  position: absolute;
  top: 1rem;
  left: 1rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(0,0,0,0.45);
  border: 1px solid rgba(255,255,255,0.25);
  color: rgba(255,255,255,0.8);
  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 0.8s ease, background 0.2s;
}
.user-fab:hover { background: rgba(0,0,0,0.6); }
.user-fab.faded { opacity: 0.3; }
#session.user-open .user-fab { opacity: 0; pointer-events: none; }

/* --- Creator FAB — top right, subtle --- */
.creator-fab {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(0,0,0,0.45);
  border: 1px solid rgba(255,255,255,0.25);
  color: rgba(255,255,255,0.8);
  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 0.8s ease, background 0.2s;
}
.creator-fab:hover { background: rgba(0,0,0,0.6); }
#session.sidebar-open .creator-fab { opacity: 0; pointer-events: none; }

/* --- User Panel — slides from LEFT --- */
.user-panel {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 200px;
  background: rgba(20,20,20,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-right: 1px solid rgba(255,255,255,0.1);
  z-index: 30;
  padding: 1.5rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  transform: translateX(-100%);
  transition: transform 0.3s ease;
}
#session.user-open .user-panel {
  transform: translateX(0);
}

/* --- User Backdrop --- */
.user-backdrop {
  position: absolute;
  inset: 0;
  z-index: 25;
  background: transparent;
}

/* --- Sidebar --- */
.sidebar {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 280px;
  background: rgba(20,20,20,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-left: 1px solid rgba(255,255,255,0.1);
  z-index: 30;
  overflow-y: auto;
  padding: 1rem 0.8rem;
  transform: translateX(100%);
  transition: transform 0.3s ease;
}
#session.sidebar-open .sidebar {
  transform: translateX(0);
}

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

/* --- Sidebar sections --- */
.sidebar-section {
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.sidebar-section:last-child { border-bottom: none; }

.sidebar-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--fg-dim);
  margin-bottom: 0.4rem;
}

.sidebar-row {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-bottom: 0.3rem;
}

.sidebar-toggles {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin-bottom: 0.4rem;
}

.sidebar-slider {
  width: 100%;
  accent-color: rgba(255,255,255,0.5);
  margin-bottom: 0.3rem;
}

.sidebar-input {
  flex: 1;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--fg);
  font-family: var(--font);
  font-size: 0.8rem;
  padding: 0.3rem 0.5rem;
  border-radius: 2px;
  outline: none;
}
.sidebar-input:focus { border-color: rgba(255,255,255,0.4); }

.sidebar-dim {
  font-size: 0.75rem;
  color: var(--fg-dim);
  min-width: 2.5em;
}

/* --- Controls buttons (shared) --- */
.ctrl-btn, .ctrl-toggle {
  background: var(--accent);
  border: 1px solid rgba(255,255,255,0.15);
  color: var(--fg);
  font-family: var(--font);
  font-size: 0.85rem;
  padding: 0.4rem 0.8rem;
  cursor: pointer;
  border-radius: 2px;
  transition: background 0.2s;
}
.ctrl-btn:hover, .ctrl-toggle:hover { background: rgba(255,255,255,0.18); }
.ctrl-toggle.active {
  background: rgba(255,255,255,0.25);
  border-color: rgba(255,255,255,0.4);
}
.ctrl-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
#axes-label {
  font-size: 0.8rem;
  min-width: 5em;
  color: var(--fg-dim);
}

/* --- Settings --- */
.settings-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.4rem 1rem;
  align-items: center;
  padding: 0.5rem 0;
  font-size: 0.8rem;
}
.settings-grid label {
  color: var(--fg-dim);
}
.settings-input {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--fg);
  font-family: var(--font);
  font-size: 0.8rem;
  padding: 0.25rem 0.4rem;
  border-radius: 2px;
  outline: none;
  max-width: 200px;
}
.settings-input:focus { border-color: rgba(255,255,255,0.4); }
.settings-dev {
  margin-top: 0.5rem;
  padding-top: 0.5rem;
  border-top: 1px solid rgba(255,255,255,0.1);
}
.settings-dev summary {
  font-size: 0.8rem;
  color: var(--fg-dim);
  cursor: pointer;
  opacity: 0.6;
}

.catalog-btn {
  background: var(--accent);
  border: 1px solid rgba(255,255,255,0.15);
  color: var(--fg-dim);
  font-family: var(--font);
  font-size: 0.75rem;
  padding: 0.25rem 0.5rem;
  cursor: pointer;
  border-radius: 2px;
}
.catalog-btn:hover { background: rgba(255,255,255,0.18); color: var(--fg); }

/* --- Preset Save Form (inline) --- */
.preset-save-form {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.preset-input {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.3);
  color: var(--fg);
  font-family: var(--font);
  font-size: 0.85rem;
  padding: 0.3rem 0.5rem;
  border-radius: 2px;
  width: 140px;
  outline: none;
}
.preset-input:focus {
  border-color: rgba(255,255,255,0.5);
}

/* --- 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: Georgia, serif;
  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 (inline im Controls) --- */
.affirm-edit {
  display: flex;
  align-items: center;
}
.affirm-edit .preset-input {
  width: 180px;
}

/* --- Night Mode --- */
#session.night-mode .sidebar {
  --fg: rgba(0,0,0,0.6);
  --fg-dim: rgba(0,0,0,0.4);
  --accent: rgba(0,0,0,0.08);
  background: rgba(240,240,240,0.85);
  border-right-color: rgba(0,0,0,0.1);
}
#session.night-mode .user-fab {
  background: rgba(0,0,0,0.15);
  border-color: rgba(0,0,0,0.1);
  color: rgba(0,0,0,0.5);
}
#session.night-mode .user-panel {
  --fg: rgba(0,0,0,0.6);
  --fg-dim: rgba(0,0,0,0.4);
  --accent: rgba(0,0,0,0.08);
  background: rgba(240,240,240,0.85);
  border-left-color: rgba(0,0,0,0.1);
}
#session.night-mode .sidebar .sidebar-section {
  border-bottom-color: rgba(0,0,0,0.08);
}
#session.night-mode .sidebar .ctrl-btn,
#session.night-mode .sidebar .ctrl-toggle {
  border-color: rgba(0,0,0,0.15);
}
#session.night-mode .sidebar .ctrl-btn:hover,
#session.night-mode .sidebar .ctrl-toggle:hover {
  background: rgba(0,0,0,0.14);
}
#session.night-mode .sidebar .ctrl-toggle.active {
  background: rgba(0,0,0,0.2);
  border-color: rgba(0,0,0,0.35);
}
#session.night-mode .sidebar .sidebar-slider {
  accent-color: rgba(0,0,0,0.5);
}
#session.night-mode .sidebar .sidebar-input {
  background: rgba(0,0,0,0.08);
  border-color: rgba(0,0,0,0.2);
}
/* Minimap night mode */
#session.night-mode #minimap {
  border-color: rgba(0,0,0,0.3);
}

/* --- Catalog night mode --- */
#catalog.night-mode {
  --bg: #f0f0f0;
  --fg: rgba(0,0,0,0.75);
  --fg-dim: rgba(0,0,0,0.45);
  --accent: rgba(0,0,0,0.08);
  background: var(--bg);
  color: var(--fg);
}
#catalog.night-mode .catalog-menu {
  background: rgba(240,240,240,0.95);
  border-right-color: rgba(0,0,0,0.1);
  --fg: rgba(0,0,0,0.75);
  --fg-dim: rgba(0,0,0,0.45);
}
#catalog.night-mode .catalog-menu-btn {
  color: rgba(0,0,0,0.6);
}
#catalog.night-mode .grid-size-slider {
  accent-color: rgba(0,0,0,0.4);
}
#catalog.night-mode .preset-thumb-name {
  background: linear-gradient(transparent, rgba(255,255,255,0.5));
  color: rgba(0,0,0,0.7);
}
#catalog.night-mode .preset-thumb-fav {
  color: rgba(0,0,0,0.4);
  text-shadow: none;
}
#catalog.night-mode .preset-thumb-fav.is-fav { color: #c33; }
#catalog.night-mode .dev-section {
  border-top-color: rgba(0,0,0,0.1);
}
#catalog.night-mode .settings-input,
#catalog.night-mode .catalog-btn {
  background: rgba(0,0,0,0.06);
  border-color: rgba(0,0,0,0.15);
  color: rgba(0,0,0,0.7);
}
#catalog.night-mode .ctrl-toggle {
  background: rgba(0,0,0,0.06);
  border-color: rgba(0,0,0,0.15);
  color: rgba(0,0,0,0.6);
}
#catalog.night-mode .ctrl-toggle.active {
  background: rgba(0,0,0,0.15);
  border-color: rgba(0,0,0,0.3);
}

/* --- Minimap --- */
.minimap {
  position: absolute;
  bottom: 1rem;
  left: 1rem;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 4px;
  background: rgba(0,0,0,0.5);
  z-index: 10;
}