/* Custom styling for iPhone Back Film Preview Site */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;700&family=Syne:wght@600;700;800&display=swap');

:root {
  --bg-color: #060608;
  --panel-bg: rgba(15, 15, 20, 0.82);
  --panel-border: rgba(255, 255, 255, 0.08);
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --accent-color: #e8ff00;
  --accent-color-rgb: 232, 255, 0;
  --danger-color: #ef4444;
  --success-color: #10b981;
  --font-title: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --sidebar-width: 420px;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-color);
  color: var(--text-main);
  overflow: hidden;
  height: 100vh;
  width: 100vw;
  -webkit-font-smoothing: antialiased;
}

/* 3D Viewport */
#canvas3d {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

/* UI Layout Container */
.app-container {
  position: relative;
  z-index: 10;
  display: flex;
  height: 100%;
  pointer-events: none; /* Let clicks pass through to Three.js canvas */
}

/* Sidebar Styling */
.sidebar {
  position: absolute;
  top: 20px;
  left: 20px;
  bottom: 20px;
  width: var(--sidebar-width);
  background: var(--panel-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--panel-border);
  border-radius: 20px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
  pointer-events: auto; /* Re-enable clicks for sidebar */
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s ease;
  z-index: 20;
}

.sidebar.collapsed {
  transform: translateX(-460px);
  opacity: 0;
}

/* Sidebar Header */
.sidebar-header {
  padding: 24px 24px 20px 24px;
  border-bottom: 1px solid var(--panel-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-dot {
  width: 10px;
  height: 10px;
  background-color: var(--accent-color);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-color);
}

.brand-title {
  font-family: var(--font-title);
  font-size: 1.1rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  font-weight: 800;
}

.close-sidebar-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 5px;
  border-radius: 6px;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.close-sidebar-btn:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.05);
}

/* Sidebar Scrollable Content */
.sidebar-content {
  flex: 1;
  overflow-y: auto;
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Scrollbar customization */
.sidebar-content::-webkit-scrollbar {
  width: 6px;
}

.sidebar-content::-webkit-scrollbar-track {
  background: transparent;
}

.sidebar-content::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
}

.sidebar-content::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* Section Styling */
.section {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.section-title {
  font-family: var(--font-title);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 1.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Step Badges */
.step-badge {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-main);
  font-size: 0.7rem;
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: 700;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

/* HDRI Background Grid */
.hdri-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.hdri-btn {
  aspect-ratio: 1;
  border-radius: 10px;
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  background: #111;
  padding: 0;
}

.hdri-btn img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hdri-btn:hover {
  transform: scale(1.05);
  border-color: rgba(255, 255, 255, 0.3);
}

.hdri-btn.active {
  border-color: var(--accent-color);
  box-shadow: 0 0 12px rgba(var(--accent-color-rgb), 0.3);
}

/* Lighting Preset Grid */
.preset-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.preset-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 10px 6px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 2px solid transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 600;
}

.preset-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.15);
  color: var(--text-main);
}

.preset-btn.active {
  border-color: var(--accent-color);
  color: var(--text-main);
  background: rgba(var(--accent-color-rgb), 0.08);
  box-shadow: 0 0 12px rgba(var(--accent-color-rgb), 0.15);
}

.preset-btn svg {
  flex-shrink: 0;
}

/* Sample Grid */
.sample-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.sample-item {
  position: relative;
  aspect-ratio: 1;
  border-radius: 10px;
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  background: #111;
}

.sample-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sample-item:hover {
  transform: scale(1.05);
  border-color: rgba(255, 255, 255, 0.3);
}

.sample-item.active {
  border-color: var(--accent-color);
  box-shadow: 0 0 12px rgba(var(--accent-color-rgb), 0.3);
}

/* Drag and Drop Area */
.upload-zone {
  border: 2px dashed rgba(255, 255, 255, 0.15);
  border-radius: 12px;
  padding: 24px;
  text-align: center;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.02);
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.upload-zone:hover, .upload-zone.dragover {
  border-color: var(--accent-color);
  background: rgba(var(--accent-color-rgb), 0.03);
}

.upload-icon {
  font-size: 1.8rem;
  color: var(--text-muted);
  transition: transform 0.2s ease;
}

.upload-zone:hover .upload-icon {
  transform: translateY(-2px);
  color: var(--accent-color);
}

.upload-text {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.upload-text span {
  color: var(--text-main);
  text-decoration: underline;
  font-weight: 500;
}

#file-input {
  display: none;
}

/* Editor Panel (Hidden when no image) */
.editor-panel {
  display: none; /* Shown dynamically in JS */
  flex-direction: column;
  gap: 20px;
}

.editor-panel.active {
  display: flex;
  animation: fadeIn 0.4s ease;
}

/* Cropper Container */
.crop-container-outer {
  width: 100%;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--panel-border);
  background: #111;
  position: relative;
  min-height: 400px;
}

.crop-container-outer img {
  display: block;
  max-width: 100%;
}

/* Range Slider Group */
.sliders-group {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.slider-wrapper {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.slider-label-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}

.slider-value {
  color: var(--text-main);
  font-weight: 700;
}

/* Custom Slider Styling */
.control-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.1);
  outline: none;
  transition: background 0.2s ease;
}

.control-slider:hover {
  background: rgba(255, 255, 255, 0.15);
}

.control-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--text-main);
  cursor: pointer;
  border: 2px solid #000;
  box-shadow: 0 0 4px rgba(0, 0, 0, 0.5);
  transition: all 0.15s ease;
}

.control-slider::-webkit-slider-thumb:hover {
  background: var(--accent-color);
  transform: scale(1.2);
}

/* Action Buttons */
.button-row {
  display: flex;
  gap: 10px;
  margin-top: 10px;
}

.btn {
  flex: 1;
  padding: 12px;
  border-radius: 10px;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
  border: none;
}

.btn-primary {
  background-color: var(--accent-color);
  color: #000;
}

.btn-primary:hover {
  background-color: #fff;
  box-shadow: 0 0 16px rgba(var(--accent-color-rgb), 0.4);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: rgba(255, 255, 255, 0.06);
  color: var(--text-main);
  border: 1px solid var(--panel-border);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: #fff;
}

/* Floating Controls (Outside sidebar) */
.floating-controls {
  position: absolute;
  top: 20px;
  right: 20px;
  display: flex;
  gap: 10px;
  pointer-events: auto;
  z-index: 20;
}

.floating-btn {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--panel-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--panel-border);
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  text-decoration: none;
}

.floating-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--accent-color);
  transform: translateY(-1px);
}

/* Instructions HUD */
.hud-tips {
  position: absolute;
  bottom: 20px;
  right: 20px;
  background: var(--panel-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  padding: 12px 18px;
  pointer-events: auto;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 6px;
  z-index: 20;
  max-width: 280px;
  transition: opacity 0.3s ease;
}

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

.hud-key {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-main);
  padding: 2px 5px;
  border-radius: 4px;
  font-family: monospace;
  font-weight: bold;
}

/* Loading and Screen Overlays */
.overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: #060608;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 100;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 3px solid rgba(255, 255, 255, 0.05);
  border-radius: 50%;
  border-top-color: var(--accent-color);
  animation: spin 1s cubic-bezier(0.5, 0.1, 0.4, 0.9) infinite;
  margin-bottom: 20px;
}

.loader-title {
  font-family: var(--font-title);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 2px;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.loader-status {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Console Logger Panel (Bottom left floating) */
.console-panel {
  display: none;
}

.console-panel.minimized {
  height: 32px;
  overflow: hidden;
}

.console-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding-bottom: 4px;
  margin-bottom: 4px;
  cursor: pointer;
  user-select: none;
}

.console-title {
  font-weight: bold;
  color: var(--text-muted);
  text-transform: uppercase;
  font-size: 0.65rem;
  letter-spacing: 0.5px;
}

.console-logs {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.log-item {
  line-height: 1.3;
}

.log-warn {
  color: #ff9f1c;
}

.log-info {
  color: #58a6ff;
}

.log-success {
  color: var(--success-color);
}

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

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Cropper custom adjustments to fit premium design */
.cropper-view-box,
.cropper-face {
  border-radius: 8px;
}
.cropper-line {
  background-color: var(--accent-color);
}
.cropper-point {
  background-color: var(--accent-color);
  width: 6px;
  height: 6px;
}
.cropper-point.point-se {
  width: 10px;
  height: 10px;
  opacity: 0.9;
}
.cropper-bg {
  background-image: none !important;
  background-color: #0c0c0e !important;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  body {
    overflow: auto;
  }
  .app-container {
    flex-direction: column;
    height: auto;
    min-height: 100vh;
    pointer-events: none;
  }
  #canvas3d {
    position: fixed;
    height: 50vh;
  }
  .sidebar {
    position: relative;
    top: 50vh;
    left: 0;
    width: 100%;
    border-radius: 20px 20px 0 0;
    margin: 0;
    bottom: auto;
    box-shadow: none;
    background: #0f0f12;
  }
  .sidebar.collapsed {
    transform: translateY(100%);
    opacity: 0;
  }
  .console-panel {
    display: none; /* Hide debug logger on mobile */
  }
  .hud-tips {
    display: none;
  }
}