:root{
  --bg: #020617;             /* Deep slate / midnight */
  --bg-solid: #020617;
  --fg: #e5e7eb;             /* Soft off-white text */

  /* Warm neon-gold accent (still works with your accent picker) */
  --accent: #facc6b;
  --accent-light: #fde68a;
  --accent-dark: #a16207;

  /* Glass surfaces */
  --glass: rgba(15, 23, 42, 0.82);       /* dark glass */
  --glass-soft: rgba(15, 23, 42, 0.6);
  --glass-border: rgba(148, 163, 184, 0.55);

  /* Neon glows */
  --glow: 0 0 24px rgba(250, 204, 21, 0.35);
  --glow-hover: 0 0 40px rgba(250, 204, 21, 0.55);

  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
}

body{
  margin: 0;
  min-height: 100vh;
  color: var(--fg);
  font-family: system-ui, -apple-system, BlinkMacSystemFont,
               "SF Pro Text", "Segoe UI", sans-serif;
  line-height: 1.5;

  /* Premium glass + neon background */
  background-color: var(--bg);
  background-image:
    radial-gradient(circle at 0% 0%, rgba(56, 189, 248, 0.25), transparent 55%),
    radial-gradient(circle at 100% 100%, rgba(244, 114, 182, 0.22), transparent 55%),
    radial-gradient(circle at 0% 100%, rgba(94, 234, 212, 0.18), transparent 55%),
    linear-gradient(135deg, #020617 0%, #020617 40%, #020617 100%);
  background-attachment: fixed;
}

/* Main app container */
#app{
  max-width: 1200px;
  margin: 40px auto;
  padding: 24px 20px 32px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg,
              rgba(15, 23, 42, 0.92),
              rgba(15, 23, 42, 0.78));
  border: 1px solid rgba(148, 163, 184, 0.6);
  box-shadow:
    0 30px 80px rgba(15, 23, 42, 0.9),
    0 0 45px rgba(56, 189, 248, 0.25),
    0 0 70px rgba(244, 114, 182, 0.25);
  backdrop-filter: blur(26px);
}

/* Title */
h1{
  font-size: 2.3rem;
  text-align: center;
  margin-bottom: 16px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 650;
  background: linear-gradient(120deg,
              var(--accent-light),
              #38bdf8,
              #f97316);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow:
    0 0 22px rgba(248, 250, 252, 0.28),
    0 0 45px rgba(56, 189, 248, 0.3);
}

/* Global text inputs */
input[type=text]{
  width: 100%;
  padding: 14px 16px;
  box-sizing: border-box;
  background: var(--glass-soft);
  backdrop-filter: blur(18px);
  border: 1px solid var(--glass-border);
  color: var(--fg);
  font-size: 1.02rem;
  margin-bottom: 14px;
  border-radius: var(--radius-md);
  box-shadow:
    0 0 0 1px rgba(15, 23, 42, 0.8),
    var(--glow);
  transition: border-color 0.2s ease, box-shadow 0.2s ease,
              background 0.2s ease, transform 0.08s ease;
}

input[type=text]:focus{
  outline: none;
  border-color: var(--accent-light);
  box-shadow:
    0 0 0 1px rgba(15, 23, 42, 0.9),
    0 0 35px rgba(56, 189, 248, 0.4);
  background: rgba(15, 23, 42, 0.95);
  transform: translateY(-1px);
}

/* --- Theme Switcher --- */
.theme-controls {
  display: flex;
  gap: 18px;
  align-items: center;
  justify-content: flex-end;
  margin-bottom: 18px;
  flex-wrap: wrap;
}
.theme-controls label {
  font-size: 1rem;
  color: var(--fg);
  opacity: 0.9;
  margin-right: 4px;
}
.theme-toggle-btn {
  padding: 8px 16px;
  border-radius: 8px;
  border: 1px solid var(--glass-border);
  background: var(--glass);
  color: var(--fg);
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s;
  margin-right: 8px;
}
.theme-toggle-btn:hover {
  background: rgba(212, 175, 55, 0.12);
  border-color: var(--accent);
}
input[type="color"].accent-picker {
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  width: 36px;
  height: 36px;
  background: var(--glass);
  cursor: pointer;
  margin-right: 8px;
  box-shadow: var(--glow);
  transition: border-color 0.3s;
}
input[type="color"].accent-picker:focus {
  border-color: var(--accent);
  outline: none;
}

/* --- Section file upload styles --- */
.section-file-upload {
  display: flex;
  gap: 15px;
  align-items: center;
  margin-bottom: 20px;
  position: relative;
  border: 2px dashed transparent;
  border-radius: 15px;
  transition: border-color 0.3s, box-shadow 0.3s, background 0.3s;
  padding: 15px;
  background: rgba(100, 180, 100, 0.05);
  border-color: rgba(100, 180, 100, 0.3);
}
.section-file-upload.drag-over {
  border-color: var(--accent);
  background: rgba(212, 175, 55, 0.08);
  box-shadow: 0 0 30px rgba(212, 175, 55, 0.25);
}
.section-file-upload .drop-hint {
  position: absolute;
  left: 0; right: 0; top: 0; bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  font-size: 1.2rem;
  color: var(--accent);
  background: rgba(0,0,0,0.12);
  border-radius: 15px;
  opacity: 0;
  transition: opacity 0.2s;
  z-index: 2;
}
.section-file-upload.drag-over .drop-hint {
  opacity: 1;
}
.section-file-upload input[type="file"] {
  flex: 1;
  padding: 10px;
  background: var(--glass);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  color: var(--fg);
  box-shadow: var(--glow);
}

/* --- Drag-to-create-section drop zone --- */
#newSectionDropZone {
  border: 2px dashed var(--accent);
  border-radius: 15px;
  background: rgba(212, 175, 55, 0.07);
  color: var(--accent);
  font-size: 1.2rem;
  text-align: center;
  padding: 30px 0;
  margin-bottom: 30px;
  transition: background 0.3s, box-shadow 0.3s;
  box-shadow: 0 0 0 rgba(212, 175, 55, 0.0);
  cursor: pointer;
  position: relative;
}
#newSectionDropZone.drag-over {
  background: rgba(212, 175, 55, 0.18);
  box-shadow: 0 0 30px rgba(212, 175, 55, 0.2);
}

/* --- Section drag handle --- */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--glass-border);
  gap: 10px;
}
.section-drag-handle {
  font-size: 1.4rem;
  cursor: grab;
  margin-right: 10px;
  color: var(--accent);
  user-select: none;
  opacity: 0.7;
  transition: color 0.2s;
}
.section-drag-handle:hover {
  color: var(--accent-light);
  opacity: 1;
}

.section-title {
  font-size: 1.8rem;
  font-weight: bold;
  color: var(--accent);
  margin: 0;
  text-shadow: 0 0 10px rgba(212, 175, 55, 0.3);
}

.section-controls {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.section-btn {
  padding: 8px 16px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: bold;
  background: var(--glass);
  backdrop-filter: blur(10px);
  color: var(--fg);
  border: 1px solid var(--glass-border);
  transition: all 0.3s ease;
}

.edit-btn:hover {
  background: rgba(212, 175, 55, 0.15);
  box-shadow: 0 0 15px rgba(212, 175, 55, 0.3);
  border-color: var(--accent);
}

.delete-btn-section:hover {
  background: rgba(180, 100, 100, 0.15);
  box-shadow: 0 0 15px rgba(180, 100, 100, 0.3);
  border-color: #b46464;
}

/* --- Section Type Toggle Buttons --- */
.section-type-btn {
  background: rgba(100, 100, 100, 0.1);
  border-color: #666;
}
.section-type-btn.active {
  background: rgba(100, 180, 100, 0.2);
  border-color: #4a9a4a;
  box-shadow: 0 0 15px rgba(100, 180, 100, 0.3);
}
.section-type-btn:hover {
  background: rgba(100, 180, 100, 0.15);
  border-color: #4a9a4a;
}

/* --- Next Section Controls --- */
.next-section-controls {
  margin-bottom: 15px;
  padding: 10px;
  background: rgba(100, 150, 200, 0.05);
  border: 1px solid rgba(100, 150, 200, 0.2);
  border-radius: 10px;
}

.next-section-select {
  padding: 8px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  color: var(--fg);
  border-radius: 8px;
  min-width: 200px;
  margin-left: 10px;
}

.clear-next-btn {
  padding: 6px 12px;
  background: rgba(180, 100, 100, 0.8);
  border: 1px solid rgba(180, 100, 100, 0.6);
  color: var(--fg);
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.8rem;
  margin-left: 10px;
}

/* --- Color Controls --- */
.color-controls {
  margin: 15px 0;
  padding: 15px;
  background: rgba(212, 175, 55, 0.05);
  border: 1px solid rgba(212, 175, 55, 0.2);
  border-radius: 10px;
}

.color-controls-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
  margin-bottom: 10px;
}

.color-controls-header h4 {
  margin: 0;
  color: var(--accent-light);
  font-size: 0.95rem;
}

.color-controls-header .toggle-icon {
  color: var(--accent);
  font-size: 1.2rem;
}

.color-controls-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  margin-top: 10px;
}

.color-control-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.color-control-item label {
  font-size: 0.85rem;
  color: var(--fg);
  opacity: 0.9;
  min-width: 80px;
}

.color-control-item input[type="color"] {
  width: 40px;
  height: 32px;
  border: 1px solid var(--glass-border);
  border-radius: 6px;
  background: var(--glass);
  cursor: pointer;
}

.color-control-item input[type="range"] {
  flex: 1;
  min-width: 80px;
}

.color-control-item input[type="number"] {
  width: 60px;
  padding: 4px 8px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 6px;
  color: var(--fg);
  font-size: 0.85rem;
}

.color-reset-btn {
  padding: 6px 12px;
  background: rgba(180, 100, 100, 0.6);
  border: 1px solid rgba(180, 100, 100, 0.4);
  color: var(--fg);
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.8rem;
}

.color-reset-btn:hover {
  background: rgba(180, 100, 100, 0.8);
}

.color-controls-collapsed .color-controls-content {
  display: none;
}


.layout-select {
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid var(--glass-border);
  background: var(--glass);
  color: var(--fg);
  font-size: 0.9rem;
  margin-left: 10px;
  box-shadow: var(--glow);
  transition: border-color 0.3s;
}
.layout-select:focus {
  border-color: var(--accent);
  outline: none;
}

.section-description {
  font-size: 1.05rem;
  color: var(--fg);
  margin: 0 0 14px 0;
  padding: 0 0 0 2px;
  opacity: 0.8;
  line-height: 1.5;
  min-height: 1.2em;
  word-break: break-word;
}

.section-description.empty {
  opacity: 0.5;
  font-style: italic;
}

/* --- Text Section Styles --- */
.text-content {
  margin-bottom: 20px;
  padding: 20px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 15px;
  box-shadow: var(--glow);
}

.text-content textarea {
  width: 100%;
  min-height: 300px;
  padding: 15px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--glass-border);
  color: var(--fg);
  border-radius: 10px;
  font-size: 1rem;
  line-height: 1.6;
  resize: vertical;
  box-sizing: border-box;
}

.text-content textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(0, 0, 0, 0.5);
}

/* --- CYOA Choices Section --- */
.cyoa-choices {
  margin-bottom: 20px;
  padding: 15px;
  border: 2px dashed rgba(100, 180, 100, 0.3);
  border-radius: 15px;
  background: rgba(100, 180, 100, 0.05);
}

.cyoa-choices h4 {
  color: #64b464;
  margin: 0 0 15px 0;
  font-size: 1.2rem;
}

.choice-item {
  display: flex;
  gap: 15px;
  align-items: center;
  margin-bottom: 15px;
  padding: 10px;
  background: var(--glass);
  border-radius: 10px;
  border: 1px solid var(--glass-border);
}

.choice-type-select {
  padding: 8px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  color: var(--fg);
  border-radius: 8px;
  min-width: 100px;
}

.choice-image-preview {
  width: 60px;
  height: 60px;
  border-radius: 8px;
  object-fit: cover;
  border: 1px solid var(--glass-border);
}

.choice-text-input {
  flex: 1;
  padding: 8px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  color: var(--fg);
  border-radius: 8px;
}

.choice-target-select {
  padding: 8px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  color: var(--fg);
  border-radius: 8px;
  min-width: 150px;
}

.choice-delete-btn {
  padding: 6px 12px;
  background: rgba(180, 100, 100, 0.8);
  border: 1px solid rgba(180, 100, 100, 0.6);
  color: var(--fg);
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.8rem;
}

.add-choice-btn {
  padding: 10px 20px;
  background: rgba(100, 180, 100, 0.1);
  border: 1px solid #64b464;
  color: var(--fg);
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
}

.add-choice-btn:hover {
  background: rgba(100, 180, 100, 0.2);
}

/* --- Gallery Layouts --- */
.gallery{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:20px;
  min-height: 60px;
  border: 2px dashed transparent;
  border-radius: 15px;
  padding: 15px;
  transition: all 0.3s ease;
}
.gallery.drag-over {
  border-color: var(--accent);
  background: rgba(212, 175, 55, 0.05);
  box-shadow: inset 0 0 30px rgba(212, 175, 55, 0.1);
}

/* Single column layout */
.gallery.single-column {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.gallery.single-column .photo-item {
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* Masonry layout using flexbox for better featured item support */
.gallery.masonry {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  padding: 15px;
  width: 100%;
  align-items: flex-start;
}
@media (max-width: 600px) {
  .gallery.masonry {
    flex-direction: column;
  }
}
.gallery.masonry .photo-item {
  display: block;
  /* Regular items are constrained to smaller width */
  flex: 0 1 calc(33.333% - 14px);
  max-width: calc(33.333% - 14px);
  min-width: 250px;
  margin-bottom: 0;
  break-inside: avoid;
  box-sizing: border-box;
}

/* Make layout responsive */
@media (max-width: 1000px) {
  .gallery.masonry .photo-item {
    flex: 0 1 calc(50% - 10px);
    max-width: calc(50% - 10px);
  }
}
@media (max-width: 600px) {
  .gallery.masonry .photo-item {
    flex: 0 1 100%;
    max-width: 100%;
    min-width: 100%;
  }
}

.photo-item{
  position:relative;
  background: var(--glass);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius:15px;
  overflow:hidden;
  box-shadow: var(--glow);
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

/* --- Featured photo styling --- */
.photo-item.featured {
  border: 2.5px solid var(--accent);
  box-shadow: 0 0 40px 0 var(--accent-light), var(--glow-hover);
  z-index: 2;
}
.gallery:not(.masonry) .photo-item.featured {
  grid-column: span 2;
}
.gallery.single-column .photo-item.featured {
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  transform: scale(1.04);
}
.gallery.masonry .photo-item.featured {
  /* Featured items span full width - making them 3x larger than regular items */
  flex: 0 1 100%;
  max-width: 100%;
  min-width: 100%;
  /* Enhanced visual emphasis */
  box-shadow: 
    0 0 60px 0 var(--accent-light),
    0 0 80px 0 rgba(250, 204, 107, 0.4),
    var(--glow-hover),
    0 8px 32px rgba(0, 0, 0, 0.6);
  border-width: 3px;
  z-index: 10;
  position: relative;
  /* Add margin to separate from other items */
  margin-bottom: 0;
}

.photo-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--glow-hover);
  border-color: var(--accent);
}

.photo-item img{
  width:100%;
  display:block;
  cursor:pointer;
  transition:transform 0.3s ease;
}

.photo-item img:hover{
  transform:scale(1.02);
}

.caption{
  width:100%;
  padding:12px;
  font-size:.95rem;
  color: var(--fg);
  background: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(5px);
  border:none;
  resize:none;
  box-sizing:border-box;
  border-top: 1px solid var(--glass-border);
}

.caption:focus {
  outline: none;
  background: rgba(0, 0, 0, 0.9);
}

.delete-btn{
  position:absolute;top:10px;right:10px;
  background: rgba(180, 100, 100, 0.8);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(180, 100, 100, 0.6);
  color:var(--fg);
  width:30px;height:30px;border-radius:50%;
  font-weight:bold;font-size:16px;
  cursor:pointer;
  line-height:1;
  transition: all 0.3s ease;
  box-shadow: 0 0 15px rgba(180, 100, 100, 0.3);
  z-index: 2;
}

.delete-btn:hover {
  background: rgba(180, 100, 100, 1);
  transform: scale(1.1);
  box-shadow: 0 0 25px rgba(180, 100, 100, 0.6);
}

/* --- Feature (star) button --- */
.feature-btn {
  position: absolute;
  top: 10px;
  left: 10px;
  background: rgba(255,255,255,0.13);
  border: 1.5px solid var(--accent);
  color: var(--accent);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  font-size: 1.3rem;
  font-weight: bold;
  cursor: pointer;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 12px rgba(212, 175, 55, 0.15);
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.2s;
}
.feature-btn.active {
  background: var(--accent);
  color: #222;
  border-color: var(--accent-dark);
  transform: scale(1.13) rotate(-8deg);
  box-shadow: 0 0 20px var(--accent-light);
}
.feature-btn:hover {
  background: var(--accent-light);
  color: #222;
  border-color: var(--accent-dark);
}

.controls-section {
  display: flex;
  gap: 20px;
  justify-content: center;
  margin-top: 30px;
  flex-wrap: wrap;
}

.add-section-btn, .export-btn, .save-btn, .load-btn{
  padding:15px 30px;
  background: var(--glass);
  backdrop-filter: blur(15px);
  color:var(--fg);
  border: 1px solid var(--glass-border);
  border-radius:15px;
  cursor:pointer;
  font-size:1.1rem;
  font-weight: bold;
  transition: all 0.3s ease;
  box-shadow: var(--glow);
}

.add-section-btn {
  background: rgba(212, 175, 55, 0.1);
  border-color: var(--accent);
}

.add-section-btn:hover {
  background: rgba(212, 175, 55, 0.2);
  box-shadow: 0 0 30px rgba(212, 175, 55, 0.4);
  transform: translateY(-2px);
}

.export-btn:hover {
  box-shadow: var(--glow-hover);
  transform: translateY(-2px);
  border-color: var(--accent);
}

.save-btn {
  background: rgba(100, 180, 100, 0.1);
  border-color: #64b464;
}

.save-btn:hover {
  background: rgba(100, 180, 100, 0.2);
  box-shadow: 0 0 30px rgba(100, 180, 100, 0.4);
  transform: translateY(-2px);
}

.load-btn {
  background: rgba(100, 150, 200, 0.1);
  border-color: #6496c8;
}

.load-btn:hover {
  background: rgba(100, 150, 200, 0.2);
  box-shadow: 0 0 30px rgba(100, 150, 200, 0.4);
  transform: translateY(-2px);
}

.gallery-title{
  font-size:4.5rem;
  text-align:center;
  margin-bottom:30px;
  font-weight:bold;
  color: var(--accent);
  text-shadow: 0 0 30px rgba(212, 175, 55, 0.4);
  letter-spacing:3px;
}

/* Modal styles */
.modal{
  display:none;
  position:fixed;
  z-index:1000;
  left:0;
  top:0;
  width:100%;
  height:100%;
  background:rgba(0,0,0,0.95);
  backdrop-filter: blur(20px);
  cursor:pointer;
}
.modal.show{
  display:flex;
  align-items:center;
  justify-content:center;
}
.modal img{
  max-width:90%;
  max-height:90%;
  object-fit:contain;
  border-radius:20px;
  box-shadow: 0 0 50px rgba(212, 175, 55, 0.2);
  border: 1px solid var(--glass-border);
}
.modal-close{
  position:absolute;
  top:30px;
  right:40px;
  color:var(--fg);
  font-size:50px;
  font-weight:bold;
  cursor:pointer;
  z-index:1001;
  text-shadow: 0 0 20px rgba(212, 175, 55, 0.3);
  transition: all 0.3s ease;
}
.modal-close:hover{
  color: var(--accent);
  transform: scale(1.1);
  text-shadow: 0 0 30px rgba(212, 175, 55, 0.6);
}

/* --- CYOA Preview --- */
.cyoa-preview {
  margin-top: 20px;
  padding: 20px;
  background: rgba(100, 180, 100, 0.05);
  border: 1px solid rgba(100, 180, 100, 0.2);
  border-radius: 15px;
}

.cyoa-preview h4 {
  color: #64b464;
  margin: 0 0 15px 0;
}

.cyoa-preview-item {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-bottom: 10px;
  padding: 8px;
  background: var(--glass);
  border-radius: 8px;
}

.cyoa-preview-image {
  width: 40px;
  height: 40px;
  border-radius: 6px;
  object-fit: cover;
}

.cyoa-preview-text {
  flex: 1;
  font-size: 0.9rem;
}

.cyoa-preview-arrow {
  color: var(--accent);
  font-weight: bold;
}

/* Hidden file input for load functionality */
#loadFileInput {
  display: none;
}

/* --- Glassmorphic theme + controls overrides --- */

/* Theme Switcher */
.theme-controls {
  display: flex;
  gap: 14px;
  align-items: center;
  justify-content: flex-end;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.theme-controls label {
  font-size: 0.95rem;
  color: var(--fg);
  opacity: 0.85;
}

.theme-toggle-btn {
  padding: 8px 18px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.7);
  background:
    radial-gradient(circle at 0% 0%, rgba(56, 189, 248, 0.4), transparent 60%),
    var(--glass-soft);
  color: var(--fg);
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform 0.08s ease, box-shadow 0.2s ease,
              border-color 0.2s ease, background 0.2s ease;
  box-shadow:
    0 8px 25px rgba(15, 23, 42, 0.85),
    0 0 18px rgba(56, 189, 248, 0.45);
}

.theme-toggle-btn:hover {
  border-color: var(--accent-light);
  box-shadow:
    0 10px 30px rgba(15, 23, 42, 0.9),
    0 0 28px rgba(56, 189, 248, 0.6);
  transform: translateY(-1px);
}

input[type="color"].accent-picker {
  border: 1px solid rgba(148, 163, 184, 0.8);
  border-radius: 999px;
  width: 36px;
  height: 36px;
  background: radial-gradient(circle at 30% 30%, #ffffff, transparent 60%);
  cursor: pointer;
  box-shadow:
    0 0 0 1px rgba(15, 23, 42, 0.9),
    0 0 25px rgba(250, 250, 250, 0.12);
  transition: box-shadow 0.2s ease, transform 0.08s ease;
  padding: 0;
}

input[type="color"].accent-picker:focus {
  outline: none;
  box-shadow:
    0 0 0 1px rgba(15, 23, 42, 0.9),
    0 0 30px rgba(250, 250, 250, 0.38);
  transform: translateY(-1px);
}

/* Primary controls */
.controls-section {
  display: flex;
  gap: 18px;
  justify-content: center;
  margin-top: 30px;
  flex-wrap: wrap;
}

.add-section-btn,
.export-btn,
.save-btn,
.load-btn{
  padding: 12px 24px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.7);
  background: linear-gradient(135deg,
              rgba(15, 23, 42, 0.96),
              rgba(15, 23, 42, 0.78));
  backdrop-filter: blur(16px);
  color: var(--fg);
  font-size: 0.98rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow:
    0 14px 40px rgba(15, 23, 42, 0.95),
    0 0 22px rgba(148, 163, 184, 0.55);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  transition: transform 0.08s ease, box-shadow 0.2s ease,
              border-color 0.2s ease, background 0.2s ease;
}

.add-section-btn {
  border-color: var(--accent-light);
  box-shadow:
    0 14px 40px rgba(15, 23, 42, 0.95),
    0 0 26px rgba(250, 204, 21, 0.65);
}

.save-btn {
  border-color: rgba(74, 222, 128, 0.8);
  box-shadow:
    0 14px 40px rgba(15, 23, 42, 0.95),
    0 0 26px rgba(74, 222, 128, 0.55);
}

.load-btn {
  border-color: rgba(96, 165, 250, 0.85);
  box-shadow:
    0 14px 40px rgba(15, 23, 42, 0.95),
    0 0 26px rgba(96, 165, 250, 0.5);
}

.export-btn {
  border-color: rgba(244, 114, 182, 0.85);
  box-shadow:
    0 14px 40px rgba(15, 23, 42, 0.95),
    0 0 26px rgba(244, 114, 182, 0.55);
}

.add-section-btn:hover,
.export-btn:hover,
.save-btn:hover,
.load-btn:hover{
  transform: translateY(-1px);
  box-shadow:
    0 18px 60px rgba(15, 23, 42, 1),
    0 0 32px rgba(148, 163, 184, 0.9);
}

/* Gallery tiles (builder) */
.gallery .photo-item{
  position: relative;
  background:
    radial-gradient(circle at 10% 0%, rgba(56, 189, 248, 0.16), transparent 55%),
    radial-gradient(circle at 100% 100%, rgba(244, 114, 182, 0.16), transparent 55%),
    rgba(15, 23, 42, 0.98);
  backdrop-filter: blur(18px);
  border: 1px solid rgba(148, 163, 184, 0.7);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow:
    0 18px 45px rgba(15, 23, 42, 0.95),
    var(--glow);
  transition: transform 0.15s ease, box-shadow 0.2s ease,
              border-color 0.2s ease;
  display: flex;
  flex-direction: column;
}

.gallery .photo-item:hover{
  transform: translateY(-4px);
  box-shadow:
    0 24px 70px rgba(15, 23, 42, 1),
    var(--glow-hover);
  border-color: var(--accent-light);
}