/* ============================================
   Photosphere Creator — Stanford Theme
   Colors from Stanford Decanter design system
   ============================================ */

/* ---- Dark theme (default) ---- */
:root,
[data-theme="dark"] {
  --accent: #8C1515;           /* Cardinal Red */
  --accent-bright: #E8616C;    /* Cardinal Red light — WCAG 4.5:1 on dark */
  --accent-glow: rgba(140, 21, 21, 0.35);
  --cyan: #767674;             /* Stanford Black-60 (gray) */
  --surface: rgba(255, 255, 255, 0.04);
  --surface-hover: rgba(255, 255, 255, 0.07);
  --surface-border: rgba(255, 255, 255, 0.08);
  --surface-border-hover: rgba(255, 255, 255, 0.15);
  --bg-deep: #1a1917;          /* Near Stanford Black */
  --bg-mid: #2E2D29;           /* Stanford Black */
  --text-primary: #F4F4F4;     /* Fog light */
  --text-secondary: rgba(244, 244, 244, 0.55);
  --navbar-bg: rgba(26, 25, 23, 0.7);
  --modal-bg: rgba(46, 45, 41, 0.92);
  --menu-bg: rgba(46, 45, 41, 0.95);
  --loading-bg: rgba(26, 25, 23, 0.85);
  --chip-bg: rgba(140, 21, 21, 0.12);
  --chip-border: rgba(140, 21, 21, 0.25);
  --chip-bg-hover: rgba(140, 21, 21, 0.22);
  --chip-border-hover: rgba(184, 58, 75, 0.4);
  --editor-bg: rgba(255, 255, 255, 0.02);
  --mesh-1: rgba(140, 21, 21, 0.1);
  --mesh-2: rgba(118, 118, 116, 0.08);
  --mesh-3: rgba(140, 21, 21, 0.04);
  --shadow-heavy: rgba(0, 0, 0, 0.4);
  --shadow-medium: rgba(0, 0, 0, 0.3);
  --close-filter: invert(1);
}

/* ---- Light theme ---- */
[data-theme="light"] {
  --accent: #8C1515;           /* Cardinal Red */
  --accent-bright: #B1040E;    /* Digital Red */
  --accent-glow: rgba(140, 21, 21, 0.18);
  --cyan: #767674;             /* Stanford Black-60 (gray) */
  --surface: rgba(0, 0, 0, 0.03);
  --surface-hover: rgba(0, 0, 0, 0.06);
  --surface-border: rgba(0, 0, 0, 0.08);
  --surface-border-hover: rgba(0, 0, 0, 0.15);
  --bg-deep: #F4F4F4;          /* Fog light */
  --bg-mid: #DAD7CB;           /* Fog */
  --text-primary: #2E2D29;     /* Stanford Black */
  --text-secondary: rgba(46, 45, 41, 0.75);
  --navbar-bg: rgba(244, 244, 244, 0.8);
  --modal-bg: rgba(255, 255, 255, 0.95);
  --menu-bg: rgba(255, 255, 255, 0.97);
  --loading-bg: rgba(244, 244, 244, 0.88);
  --chip-bg: rgba(140, 21, 21, 0.08);
  --chip-border: rgba(140, 21, 21, 0.18);
  --chip-bg-hover: rgba(140, 21, 21, 0.14);
  --chip-border-hover: rgba(140, 21, 21, 0.3);
  --editor-bg: rgba(0, 0, 0, 0.02);
  --mesh-1: rgba(140, 21, 21, 0.05);
  --mesh-2: rgba(118, 118, 116, 0.04);
  --mesh-3: rgba(140, 21, 21, 0.02);
  --shadow-heavy: rgba(0, 0, 0, 0.1);
  --shadow-medium: rgba(0, 0, 0, 0.08);
  --close-filter: none;
}

* { box-sizing: border-box; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-deep);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  transition: background 0.4s, color 0.4s;
}

/* ---- Animated background ---- */
.bg-mesh {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 80% 60% at 20% 10%, var(--mesh-1) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 80%, var(--mesh-2) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 50% 50%, var(--mesh-3) 0%, transparent 60%);
  animation: meshDrift 20s ease-in-out infinite alternate;
  transition: background 0.4s;
}

@keyframes meshDrift {
  0%   { transform: scale(1) translate(0, 0); }
  50%  { transform: scale(1.05) translate(-2%, 1%); }
  100% { transform: scale(1) translate(1%, -1%); }
}

/* ---- Navbar ---- */
.navbar-custom {
  padding: 0.75rem 0;
  background: var(--navbar-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--surface-border);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: background 0.4s;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: inherit;
}

.brand:hover { color: inherit; }

.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm, 8px);
  background: linear-gradient(135deg, var(--accent), var(--cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  color: white;
  box-shadow: 0 0 20px var(--accent-glow);
}

.brand-svg {
  width: 22px;
  height: 22px;
  filter: brightness(0) invert(1);
}

.brand-name {
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  display: block;
  line-height: 1.2;
}

.brand-tag {
  font-size: 0.65rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  display: block;
}

/* ---- Auth overlay ---- */
.auth-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: var(--bg-deep);
  display: flex;
  align-items: center;
  justify-content: center;
}

.auth-card {
  text-align: center;
  max-width: 360px;
  padding: 2.5rem 2rem;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 24px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.auth-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(140, 21, 21, 0.2), rgba(118, 118, 116, 0.15));
  border: 1px solid rgba(140, 21, 21, 0.25);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--accent-bright);
  margin-bottom: 1rem;
  box-shadow: 0 0 40px rgba(140, 21, 21, 0.15);
}

.auth-svg {
  width: 40px;
  height: 40px;
  filter: brightness(0) invert(1);
}

[data-theme="light"] .auth-svg {
  filter: none;
  opacity: 0.7;
}

.auth-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.auth-subtitle {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 1.5rem;
}

.auth-hint {
  color: var(--text-secondary);
  font-size: 0.72rem;
  margin-top: 1rem;
  margin-bottom: 0;
}

/* ---- User avatar ---- */
.user-avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  object-fit: cover;
}

/* ---- Glass card ---- */
.glass-card {
  position: relative;
  z-index: 10;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 24px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: background 0.4s, border-color 0.4s;
}

.card-inner {
  padding: 1.25rem 1.5rem;
}

.section-title {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-primary);
}

.section-title i {
  color: var(--accent-bright);
  font-size: 1.1rem;
}

/* ---- Mode toggle ---- */
.mode-toggle {
  position: relative;
  display: flex;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 100px;
  padding: 3px;
  gap: 0;
}

.mode-toggle input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.mode-toggle label {
  position: relative;
  z-index: 2;
  padding: 0.3rem 0.85rem;
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: 100px;
  cursor: pointer;
  color: var(--text-secondary);
  transition: color 0.25s;
  user-select: none;
}

.mode-toggle input:checked + label {
  color: white;
}

.mode-slider {
  position: absolute;
  top: 3px;
  left: 3px;
  height: calc(100% - 6px);
  width: calc(50% - 3px);
  background: var(--accent);
  border-radius: 100px;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1;
}

/* 2-option toggle */
.mode-toggle input:nth-of-type(2):checked ~ .mode-slider {
  transform: translateX(100%);
}

/* 3-option toggle */
.mode-toggle-3 .mode-slider {
  width: calc(33.333% - 2px);
}

.mode-toggle-3 input:nth-of-type(2):checked ~ .mode-slider {
  transform: translateX(100%);
}

.mode-toggle-3 input:nth-of-type(3):checked ~ .mode-slider {
  transform: translateX(200%);
}

/* Overhead sub-toggle (Satellite / Blueprint) */
.overhead-sub-toggle {
  background: var(--surface);
  border: 1px solid var(--surface-border);
}

.overhead-sub-toggle label {
  padding: 0.25rem 0.7rem;
  font-size: 0.72rem;
}

.overhead-sub-toggle label i {
  font-size: 0.8rem;
}

/* ---- Prompt textarea ---- */
.prompt-input-wrapper {
  position: relative;
}

.prompt-textarea {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 14px;
  padding: 0.85rem 1rem;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.9rem;
  line-height: 1.5;
  resize: vertical;
  transition: border-color 0.3s, box-shadow 0.3s, background 0.4s;
  outline: none;
}

.prompt-textarea::placeholder {
  color: var(--text-secondary);
}

.prompt-textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow), 0 0 30px rgba(140, 21, 21, 0.1);
}

.prompt-glow {
  position: absolute;
  inset: -1px;
  border-radius: 14px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s;
  background: linear-gradient(135deg, var(--accent), var(--cyan));
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  -webkit-mask-composite: xor;
  padding: 1px;
}

.prompt-textarea:focus + .prompt-glow {
  opacity: 0.5;
}

/* Improve prompt button — icon-only, top-right of textarea */
.btn-improve {
  position: absolute;
  top: 8px;
  right: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.3rem;
  background: transparent;
  border: none;
  border-radius: 6px;
  color: var(--text-secondary);
  font-size: 1.4rem;
  cursor: pointer;
  transition: all 0.2s;
  z-index: 2;
  opacity: 0.5;
}

.btn-improve:hover {
  background: transparent;
  color: var(--accent-bright);
  opacity: 1;
}

.btn-improve:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-improve i { font-size: 0.8rem; }

.spin-icon {
  animation: spin 0.8s linear infinite;
}

/* ---- Example scenes ---- */
.examples-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.examples-label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  white-space: nowrap;
  flex-shrink: 0;
}

.examples-scroll {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding: 2px 0;
}

.examples-scroll::-webkit-scrollbar { display: none; }

.example-card {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.75rem;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 100px;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
  transition: all 0.2s;
  flex-shrink: 0;
}

.example-card:hover {
  background: var(--chip-bg);
  border-color: var(--chip-border);
  color: var(--accent-bright);
  transform: translateY(-1px);
}

.example-card i {
  font-size: 0.9rem;
}

/* ---- Expand mode ---- */
.expand-upload {
  max-width: 480px;
}

.expand-slot {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 140px;
  background: var(--surface);
  border: 2px dashed var(--surface-border);
  border-radius: 14px;
  cursor: pointer;
  transition: border-color 0.3s, background 0.3s;
  position: relative;
  overflow: hidden;
}

.expand-slot:hover,
.expand-slot.drag-over {
  border-color: var(--accent);
  background: var(--chip-bg);
}

.expand-slot.filled {
  border-style: solid;
  border-color: var(--accent);
}

.expand-slot-prompt {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  color: var(--text-secondary);
  padding: 1rem;
}

.expand-slot-prompt i {
  font-size: 2rem;
  color: var(--accent-bright);
  opacity: 0.6;
}

.expand-slot-label {
  font-size: 0.82rem;
  font-weight: 500;
}

.expand-slot-hint {
  font-size: 0.7rem;
  color: var(--text-secondary);
}

.expand-slot-preview {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.expand-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 12px;
}

.expand-slot-clear {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: none;
  background: rgba(0, 0, 0, 0.6);
  color: white;
  font-size: 0.7rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.2s, background 0.2s;
}

.expand-slot:hover .expand-slot-clear {
  opacity: 1;
}

.expand-slot-clear:hover {
  background: rgba(239, 68, 68, 0.8);
}

/* Token badge on upload slots */
.token-badge {
  position: absolute;
  bottom: 8px;
  left: 8px;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.55rem;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: 8px;
  font-size: 0.68rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
}

.token-count::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-bright);
  margin-right: 0.25rem;
}

/* Cost estimate next to generate button */
.cost-estimate {
  font-size: 0.7rem;
  color: var(--text-secondary);
  white-space: nowrap;
}

.cost-info-link {
  color: var(--text-secondary);
  opacity: 0.5;
  font-size: 0.72rem;
  margin-left: 0.25rem;
  transition: opacity 0.2s, color 0.2s;
  text-decoration: none;
}

.cost-info-link:hover {
  opacity: 1;
  color: var(--accent-bright);
}

/* Annotation cost under toggle */
.annotate-cost {
  font-size: 0.62rem;
  color: var(--text-secondary);
  opacity: 0.6;
  margin-top: 0.15rem;
}

/* Direction description fields */
.expand-directions-header {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.expand-directions-header i {
  color: var(--accent-bright);
  font-size: 0.9rem;
}

.expand-dir-field {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.expand-dir-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.15rem;
}

.expand-dir-label i {
  font-size: 1rem;
}

.expand-dir-input {
  padding: 0.5rem 0.7rem;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 10px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.8rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  width: 100%;
}

.expand-dir-input::placeholder {
  color: var(--text-secondary);
  opacity: 0.6;
}

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

/* ---- Select dropdowns ---- */
.select-btn {
  display: flex;
  align-items: center;
  width: 100%;
  padding: 0.6rem 0.85rem;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 14px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.82rem;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  gap: 0.5rem;
  text-align: left;
}

.select-btn:hover {
  background: var(--surface-hover);
  border-color: var(--surface-border-hover);
}

.select-icon {
  color: var(--accent-bright);
  font-size: 1rem;
  flex-shrink: 0;
}

.select-label {
  color: var(--text-secondary);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
  flex-shrink: 0;
}

.select-value {
  flex: 1;
  text-align: right;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.select-chevron {
  font-size: 0.7rem;
  color: var(--text-secondary);
  transition: transform 0.2s;
  flex-shrink: 0;
}

.select-btn[aria-expanded="true"] .select-chevron {
  transform: rotate(180deg);
}

.select-menu {
  background: var(--menu-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--surface-border);
  border-radius: 14px;
  padding: 0.35rem;
  margin-top: 0.35rem !important;
  min-width: 100%;
  box-shadow: 0 12px 40px var(--shadow-heavy);
}

.select-option {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.75rem;
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 0.82rem;
  font-weight: 450;
  transition: background 0.15s;
}

.select-option i {
  font-size: 1rem;
  width: 1.2rem;
  text-align: center;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.select-option:hover,
.select-option:focus {
  background: var(--surface-hover);
  color: var(--text-primary);
}

.select-option.active {
  background: var(--chip-bg);
  color: var(--accent-bright);
}

.select-option.active i {
  color: var(--accent-bright);
}

.select-menu .dropdown-divider {
  border-color: var(--surface-border);
  margin: 0.25rem 0;
}

.custom-perspective-input {
  background: var(--surface) !important;
  border: 1px solid var(--surface-border) !important;
  border-radius: 8px !important;
  color: var(--text-primary) !important;
  font-size: 0.8rem !important;
  margin-bottom: 0.35rem;
}

.custom-perspective-input::placeholder {
  color: var(--text-secondary) !important;
}

.custom-perspective-input:focus {
  border-color: var(--accent) !important;
  box-shadow: 0 0 0 2px var(--accent-glow) !important;
}

/* ---- Buttons ---- */
.btn-generate {
  position: relative;
  border: none;
  border-radius: 14px;
  padding: 0.7rem 1.5rem;
  cursor: pointer;
  overflow: hidden;
  font-family: inherit;
  background: transparent;
}

.btn-generate-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent), #820000, var(--cyan));
  background-size: 200% 200%;
  animation: gradientShift 4s ease infinite;
  border-radius: 14px;
  transition: opacity 0.3s;
}

.btn-generate:hover .btn-generate-bg { opacity: 0.85; }
.btn-generate:active .btn-generate-bg { opacity: 1; }

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.btn-generate-content {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  color: white;
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: -0.01em;
}

.btn-generate:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-glass {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 14px;
  padding: 0.65rem 1.1rem;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-glass:hover {
  background: var(--surface-hover);
  border-color: var(--surface-border-hover);
  color: var(--text-primary);
}

.btn-glass.btn-sm {
  padding: 0.4rem 0.75rem;
  font-size: 0.75rem;
  border-radius: 10px;
}

.btn-glass.btn-danger-glass:hover {
  background: rgba(239, 68, 68, 0.12);
  border-color: rgba(239, 68, 68, 0.3);
  color: #ef4444;
}

.btn-glass.btn-done {
  background: var(--chip-bg);
  border-color: var(--chip-border);
  color: var(--accent-bright);
}

.btn-glass.btn-done:hover {
  background: var(--chip-bg-hover);
}

.btn-icon {
  padding: 0.55rem 0.65rem;
  font-size: 1rem;
  line-height: 1;
  border-radius: 8px;
}

/* ---- Annotation toggle ---- */
.annotation-toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  user-select: none;
}

.annotation-toggle input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.toggle-track {
  position: relative;
  width: 36px;
  height: 20px;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 100px;
  transition: background 0.25s, border-color 0.25s;
}

.toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--text-secondary);
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1), background 0.25s;
}

.annotation-toggle input:checked + .toggle-track {
  background: rgba(140, 21, 21, 0.25);
  border-color: rgba(140, 21, 21, 0.4);
}

.annotation-toggle input:checked + .toggle-track .toggle-thumb {
  transform: translateX(16px);
  background: var(--accent-bright);
  box-shadow: 0 0 8px var(--accent-glow);
}

.toggle-label {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.25s;
}

.annotation-toggle input:checked ~ .toggle-label {
  color: var(--accent-bright);
}

/* ---- Focus visible ---- */
*:focus-visible {
  outline: 2px solid var(--accent-bright);
  outline-offset: 2px;
}

.mode-toggle input:focus-visible + label {
  outline: 2px solid var(--accent-bright);
  outline-offset: 2px;
  border-radius: 100px;
}

.annotation-toggle input:focus-visible + .toggle-track {
  outline: 2px solid var(--accent-bright);
  outline-offset: 2px;
}

/* ---- Viewer ---- */
.viewer-wrapper {
  position: relative;
  background: var(--bg-mid);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--surface-border);
  box-shadow: 0 4px 40px var(--shadow-medium);
  transition: background 0.4s, border-color 0.4s;
}

#panorama-container {
  width: 100%;
  height: 50vh;
  position: relative;
}

#panorama-container .pnlm-render-container {
  touch-action: none;
}

/* Viewer toolbar */
.viewer-toolbar {
  position: absolute;
  bottom: 16px;
  left: 16px;
  z-index: 5;
  display: flex;
  gap: 0.4rem;
}

.toolbar-btn {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  border: 1px solid var(--surface-border);
  background: var(--navbar-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--text-primary);
  font-size: 1.05rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.toolbar-btn:hover {
  background: var(--surface-hover);
  border-color: var(--accent);
  color: var(--accent-bright);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px var(--accent-glow);
}

/* Reposition banner */
.reposition-banner {
  position: absolute;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 8;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.2rem;
  background: var(--navbar-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--accent);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent-bright);
  white-space: nowrap;
  box-shadow: 0 4px 20px var(--accent-glow);
  animation: fadeSlideIn 0.3s ease-out;
}

.reposition-banner i {
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateX(-50%) translateY(-10px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* Edit bar — overlaid at bottom of viewer */
.edit-bar {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 6;
  width: min(500px, calc(100% - 120px));
  animation: fadeSlideIn 0.3s ease-out;
}

.edit-bar-inner {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.6rem;
  background: var(--navbar-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--surface-border);
  border-radius: 14px;
  box-shadow: 0 8px 32px var(--shadow-heavy);
  transition: border-color 0.2s;
}

.edit-bar-inner:focus-within {
  border-color: var(--accent);
}

.edit-bar-icon {
  color: var(--text-secondary);
  font-size: 0.9rem;
  flex-shrink: 0;
}

.edit-bar-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.82rem;
  min-width: 0;
}

.edit-bar-input::placeholder {
  color: var(--text-secondary);
}

.edit-bar-send {
  width: 30px;
  height: 30px;
  border-radius: 10px;
  border: none;
  background: var(--accent);
  color: white;
  font-size: 0.85rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 0.2s, transform 0.15s;
}

.edit-bar-send:hover {
  background: var(--accent-bright);
  transform: scale(1.05);
}

.edit-bar-send:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* Placeholder */
.viewer-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 1;
  pointer-events: none;
}

.placeholder-orb {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(140, 21, 21, 0.15), rgba(118, 118, 116, 0.1));
  border: 1px solid rgba(140, 21, 21, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: orbFloat 6s ease-in-out infinite;
  box-shadow: 0 0 60px rgba(140, 21, 21, 0.15);
}

.placeholder-svg {
  width: 48px;
  height: 48px;
  filter: brightness(0) invert(1);
  opacity: 0.7;
}

[data-theme="light"] .placeholder-svg {
  filter: none;
  opacity: 0.5;
}

@keyframes orbFloat {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-12px); }
}

.placeholder-text {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  margin-top: 1.25rem;
  margin-bottom: 0.25rem;
}

.placeholder-hint {
  color: var(--text-secondary);
  font-size: 0.8rem;
  margin: 0;
}

/* Loading */
.viewer-loading {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--loading-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 10;
}

.loading-orb {
  position: relative;
  width: 100px;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.loading-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid transparent;
}

.loading-ring:nth-child(1) {
  border-top-color: var(--accent);
  animation: spin 1.5s linear infinite;
}

.loading-ring:nth-child(2) {
  inset: 8px;
  border-right-color: var(--cyan);
  animation: spin 2s linear infinite reverse;
}

.loading-ring:nth-child(3) {
  inset: 16px;
  border-bottom-color: var(--accent-bright);
  animation: spin 2.5s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.loading-icon {
  width: 32px;
  height: 32px;
  filter: brightness(0) invert(1);
  animation: pulse 2s ease-in-out infinite;
}

[data-theme="light"] .loading-icon {
  filter: none;
  opacity: 0.6;
}

@keyframes pulse {
  0%, 100% { opacity: 0.5; }
  50%      { opacity: 1; }
}

.loading-status {
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  margin-top: 1rem;
  letter-spacing: 0.02em;
}

/* ---- Annotations panel ---- */
.annotations-panel {
  margin-top: 0.75rem;
}

.annotations-bar {
  padding: 0.75rem 1.25rem;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 20px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: background 0.4s, border-color 0.4s;
}

.annotations-label {
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.annotations-label i {
  color: var(--accent-bright);
}

.annotation-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.85rem;
  font-size: 0.78rem;
  font-weight: 500;
  border-radius: 100px;
  background: var(--chip-bg);
  border: 1px solid var(--chip-border);
  color: var(--accent-bright);
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}

.annotation-chip:hover {
  background: var(--chip-bg-hover);
  border-color: var(--chip-border-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(140, 21, 21, 0.12);
}

/* Chip hover actions — positioned as overlay so they don't reflow chips */
.annotation-chip {
  position: relative;
}

.chip-actions {
  display: flex;
  gap: 2px;
  position: absolute;
  top: -8px;
  right: -6px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s;
}

.annotation-chip:hover .chip-actions {
  opacity: 1;
  pointer-events: auto;
}

.chip-action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.2rem;
  height: 1.2rem;
  border-radius: 50%;
  border: none;
  background: var(--accent);
  color: white;
  font-size: 0.55rem;
  cursor: pointer;
  padding: 0;
  transition: transform 0.15s, background 0.15s;
  box-shadow: 0 2px 6px rgba(0,0,0,0.25);
}

.chip-action-btn:hover {
  background: var(--accent-bright);
  transform: scale(1.15);
}

.chip-delete-btn:hover {
  background: #ef4444 !important;
}

.annotation-chip.selected {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
  box-shadow: 0 4px 16px var(--accent-glow);
}

.annotation-chip.add-chip {
  background: transparent;
  border-style: dashed;
  color: var(--text-secondary);
}

.annotation-chip.add-chip:hover {
  background: var(--chip-bg);
  color: var(--accent-bright);
  border-style: solid;
}

.chip-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.15rem;
  height: 1.15rem;
  border-radius: 50%;
  background: rgba(140, 21, 21, 0.25);
  font-size: 0.65rem;
  font-weight: 700;
  color: white;
}

.annotation-chip.selected .chip-number {
  background: rgba(255, 255, 255, 0.25);
}

/* Annotation shimmer */
.annotations-loading {
  background: linear-gradient(90deg,
    var(--chip-bg) 25%,
    var(--chip-bg-hover) 50%,
    var(--chip-bg) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 100px;
  height: 1.8rem;
  width: 7rem;
}

@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Edit dialog */
.edit-dialog {
  position: fixed;
  z-index: 200;
  width: 320px;
  animation: fadeSlideIn 0.2s ease-out;
}

.edit-dialog-inner {
  background: var(--modal-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--surface-border);
  border-radius: 16px;
  padding: 1rem;
  box-shadow: 0 12px 40px var(--shadow-heavy);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.edit-dialog-field {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.editor-label {
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
}

.editor-input {
  padding: 0.5rem 0.7rem;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 10px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.82rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  width: 100%;
  box-sizing: border-box;
}

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

.editor-input::placeholder {
  color: var(--text-secondary);
}

.edit-dialog-actions {
  display: flex;
  gap: 0.4rem;
  justify-content: flex-end;
  align-items: center;
  margin-top: 0.25rem;
}

/* ---- API Key Modal ---- */
.api-key-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.api-key-input-wrapper > i {
  position: absolute;
  left: 0.9rem;
  color: var(--text-secondary);
  font-size: 1rem;
  pointer-events: none;
}

.api-key-input {
  width: 100%;
  padding: 0.8rem 0.9rem 0.8rem 2.6rem;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 14px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.api-key-input::placeholder {
  color: var(--text-secondary);
}

.api-key-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

/* ---- Glass modal (reusable) ---- */
.glass-modal {
  background: var(--modal-bg) !important;
  backdrop-filter: blur(30px) !important;
  -webkit-backdrop-filter: blur(30px) !important;
  border: 1px solid var(--surface-border) !important;
  border-radius: 24px !important;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.5) !important;
}

/* ---- Toast ---- */
.glass-toast {
  background: var(--modal-bg) !important;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 183, 77, 0.2) !important;
  border-radius: 14px !important;
  color: var(--text-primary) !important;
  box-shadow: 0 8px 32px var(--shadow-medium) !important;
}

.glass-toast .btn-close {
  filter: var(--close-filter);
}

/* ---- Pannellum overrides ---- */
/* Fix: Pannellum's controls container spans the full viewer — must not block events */
.pnlm-controls-container {
  pointer-events: none !important;
  bottom: 12px !important;
  right: 12px !important;
}

.pnlm-controls-container .pnlm-ctrl,
.pnlm-controls-container .pnlm-zoom-controls,
.pnlm-controls-container .pnlm-fullscreen-toggle-button-active,
.pnlm-controls-container .pnlm-fullscreen-toggle-button {
  pointer-events: auto !important;
}

.pnlm-controls-container .pnlm-ctrl {
  background: var(--navbar-bg) !important;
  backdrop-filter: blur(12px) !important;
  border: 1px solid var(--surface-border) !important;
  border-radius: 6px !important;
  color: var(--text-primary) !important;
}

.pnlm-compass .pnlm-compass-arrow {
  filter: brightness(1.5);
}

/* Crosshair overlay for pan-to-place reposition */
.reposition-crosshair {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 7;
  pointer-events: none;
  color: var(--accent-bright);
  font-size: 2rem;
  filter: drop-shadow(0 0 6px var(--accent-glow));
  animation: crosshairPulse 1.5s ease-in-out infinite;
}

@keyframes crosshairPulse {
  0%, 100% { opacity: 0.7; transform: translate(-50%, -50%) scale(1); }
  50%      { opacity: 1; transform: translate(-50%, -50%) scale(1.15); }
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .viewer-wrapper {
    border-radius: 8px;
  }

  #panorama-container {
    height: 40vh;
  }

  .glass-card { border-radius: 16px; }
  .card-inner { padding: 1rem 1.1rem; }
  .section-title { font-size: 0.9rem; }
  .btn-generate-content { font-size: 0.8rem; }

  .editor-row { flex-direction: column; align-items: stretch; }
  .editor-actions { justify-content: flex-end; }

  .examples-row { flex-direction: column; align-items: flex-start; width: 100%; }
  .examples-scroll { max-width: 100%; }
}

/* ---- Reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ---- History panel ---- */
.history-panel {
  margin-top: 0.75rem;
}

.history-bar {
  padding: 0.75rem 1.25rem;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 20px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.history-list {
  max-height: 300px;
  overflow-y: auto;
  margin-top: 0.5rem;
}

.history-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem;
  border-radius: 12px;
  transition: background 0.15s;
}

.history-item:hover {
  background: var(--surface-hover);
}

.history-thumb {
  width: 48px;
  height: 24px;
  object-fit: cover;
  border-radius: 6px;
  flex-shrink: 0;
}

.history-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.history-mode {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-bright);
}

.badge-4k {
  display: inline-block;
  padding: 0.05rem 0.3rem;
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  background: linear-gradient(135deg, #c49a3c, #d4aa4c);
  color: #1a1917;
  border-radius: 3px;
  vertical-align: middle;
}

.badge-pro {
  display: inline-block;
  padding: 0.05rem 0.3rem;
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  background: linear-gradient(135deg, var(--accent), var(--accent-bright));
  color: white;
  border-radius: 3px;
  vertical-align: middle;
}

.history-date {
  font-size: 0.68rem;
  color: var(--text-secondary);
}

.history-prompt {
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 0.65rem;
  color: var(--text-secondary);
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.4;
  max-height: 3.5em;
  overflow-y: auto;
}

.history-actions {
  display: flex;
  gap: 0.25rem;
  flex-shrink: 0;
}

.history-actions button {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  border: 1px solid var(--surface-border);
  background: var(--surface);
  color: var(--text-secondary);
  font-size: 0.75rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}

.history-actions button:hover {
  background: var(--surface-hover);
  color: var(--text-primary);
}

.history-actions .history-delete-btn:hover {
  background: rgba(239, 68, 68, 0.12);
  border-color: rgba(239, 68, 68, 0.3);
  color: #ef4444;
}