/* ============================================================
   TextureMapper — Kinetic Precision Design System
   ============================================================ */

/* --- Shared Brand Tokens --- */
@import url('../tokens.css');

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Sora:wght@600;700;800&family=Inter:wght@400;500;600&family=Barlow+Condensed:wght@600&display=swap');

/* --- Design Tokens --- */
:root {
  /* Colors — Surfaces */
  --surface: #fbf9f8;
  --surface-dim: #dbd9d9;
  --surface-bright: #fbf9f8;
  --surface-container-lowest: #ffffff;
  --surface-container-low: #f5f3f3;
  --surface-container: #f0eded;
  --surface-container-high: #eae8e7;
  --surface-container-highest: #e4e2e2;
  --on-surface: #1b1c1c;
  --on-surface-variant: #4c4636;
  --inverse-surface: #303030;
  --inverse-on-surface: #f2f0f0;

  /* Colors — Outline */
  --outline: #7e7664;
  --outline-variant: #cfc6b1;

  /* Colors — Primary (Gold) — references shared brand token */
  --primary: #735c00;
  --on-primary: #ffffff;
  --primary-container: var(--gold);
  --on-primary-container: #705a00;
  --inverse-primary: #e5c457;

  /* Colors — Secondary */
  --secondary: #5d5f5f;
  --on-secondary: #ffffff;
  --secondary-container: #dfe0e0;
  --on-secondary-container: #616363;

  /* Colors — Tertiary (Tech Blue) */
  --tertiary: #295fa2;
  --on-tertiary: #ffffff;
  --tertiary-container: #c1d7ff;
  --on-tertiary-container: #265da0;

  /* Colors — Error */
  --error: #ba1a1a;
  --on-error: #ffffff;
  --error-container: #ffdad6;
  --on-error-container: #93000a;

  /* Colors — Fixed variants */
  --primary-fixed: #ffe084;
  --primary-fixed-dim: #e5c457;
  --on-primary-fixed: #231b00;
  --tertiary-fixed: #d5e3ff;
  --tertiary-fixed-dim: #a7c8ff;

  /* Tool-specific tokens */
  --color-success: #4caf50;
  --surface-camera: #0a0a0a;
  --surface-warm-hover: #fffdf5;
  --error-border: #f5bdb8;

  /* Typography */
  --font-display: 'Sora', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-label: 'Barlow Condensed', sans-serif;

  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  /* Spacing */
  --space-base: 4px;
  --space-unit: 8px;
  --space-panel: 12px;
  --sidebar-width: 320px;
  --gutter: 1px;

  /* Shadows */
  --shadow-ambient: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-elevated: 0 8px 24px rgba(0, 0, 0, 0.1);
  --shadow-modal: 0 16px 48px rgba(0, 0, 0, 0.14), 0 0 0 1px rgba(0, 0, 0, 0.05);

  /* Transitions */
  --transition-fast: 120ms ease;
  --transition-normal: 200ms ease;
  --transition-slow: 320ms ease;
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 400;
  line-height: 20px;
  color: var(--on-surface);
  background-color: var(--surface-dim);
  overflow: hidden;
  height: 100vh;
  width: 100vw;
  display: flex;
  flex-direction: column;
}

/* ===== NAV (1:1 from homepage) ===== */
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 32px; }

nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(20,17,11,0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  flex-shrink: 0;
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo {
  font-family: 'Sora', sans-serif; font-weight: 800; font-size: 19px;
  color: var(--paper); letter-spacing: -0.03em; text-decoration: none;
}
.logo b { color: var(--gold); }
.nav-links { display: flex; align-items: center; gap: 36px; }
.nav-links a {
  color: var(--muted-on-dark); font-size: 14px; font-weight: 500;
  transition: color 0.18s; text-decoration: none;
}
.nav-links a:hover { color: var(--paper); }
.nav-discord {
  background: var(--gold); color: var(--gold-ink) !important;
  padding: 9px 18px; border-radius: 8px; font-weight: 600;
  transition: transform 0.15s, background 0.18s;
}
.nav-discord:hover { background: #ffe08a; transform: translateY(-1px); }
.nav-toggle {
  display: none;
  width: 36px; height: 36px;
  background: transparent;
  border: 1.5px solid #433d2c;
  border-radius: 8px;
  cursor: pointer;
  color: var(--paper);
  align-items: center; justify-content: center;
  transition: border-color 0.18s, color 0.18s;
}
.nav-toggle:hover { border-color: var(--gold); color: var(--gold); }
.nav-toggle svg { width: 18px; height: 18px; }
.mobile-nav {
  display: none;
  flex-direction: column;
  background: rgba(20,17,11,0.98);
  border-top: 1px solid var(--line);
  padding: 8px 0;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  padding: 13px 24px;
  color: var(--muted-on-dark);
  font-size: 15px; font-weight: 500;
  border-bottom: 1px solid var(--line);
  transition: color 0.18s, background 0.18s;
  text-decoration: none;
}
.mobile-nav a:last-child { border-bottom: none; }
.mobile-nav a:hover { color: var(--paper); background: rgba(255,255,255,0.04); }
.mobile-nav .nav-discord {
  margin: 8px 20px; border-radius: 8px;
  border-bottom: none; text-align: center; display: block;
}

/* --- Typography Classes --- */
.type-display {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 700;
  line-height: 56px;
  letter-spacing: -0.02em;
}

.type-headline-md {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
  line-height: 32px;
}

.type-headline-sm {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  line-height: 24px;
}

.type-body-lg {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 24px;
}

.type-body-sm {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 400;
  line-height: 20px;
}

.type-label {
  font-family: var(--font-label);
  font-size: 12px;
  font-weight: 600;
  line-height: 16px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.type-numeric {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  line-height: 16px;
  font-variant-numeric: tabular-nums;
}

/* --- Layout --- */
.app-shell {
  display: flex;
  flex: 1;
  min-height: 0;
  width: 100vw;
  gap: var(--gutter);
  background-color: var(--surface-dim);
}

/* --- Sidebar --- */
.sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  background: var(--surface-container-lowest);
  border-right: var(--gutter) solid var(--outline-variant);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
}

.sidebar-section {
  padding: var(--space-panel);
  border-bottom: var(--gutter) solid var(--surface-container-high);
}

.sidebar-section:last-child {
  border-bottom: none;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.section-title {
  font-family: var(--font-label);
  font-size: 11px;
  font-weight: 600;
  line-height: 16px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
}

/* --- Webcam Feed Area --- */
.webcam-container {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  background: var(--surface-camera);
  border-radius: var(--radius);
  overflow: hidden;
  border: var(--gutter) solid var(--outline-variant);
}

.webcam-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scaleX(-1); /* Mirror for selfie-style */
  display: block;
}

.webcam-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  cursor: crosshair;
  /* pointer-events managed by JS based on lock state */
}

.webcam-placeholder {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--outline);
  z-index: 2;
}

.webcam-placeholder svg {
  width: 40px;
  height: 40px;
  opacity: 0.5;
}

.webcam-placeholder .enable-camera-text {
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--outline);
}

/* --- Control Row (Lock, UV Overlay) --- */
.control-row {
  display: flex;
  gap: 6px;
  margin-top: 8px;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  line-height: 1;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  padding: 8px 16px;
  transition:
    background-color var(--transition-fast),
    box-shadow var(--transition-fast),
    transform var(--transition-fast),
    border-color var(--transition-fast);
  user-select: none;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--primary-container);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--primary-container);
  color: var(--gold-ink);
  font-weight: 600;
}

.btn-primary:hover {
  background: #ffe08a;
  box-shadow: 0 4px 14px rgba(246, 211, 101, 0.25);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: none;
}

.btn-secondary {
  background: transparent;
  color: var(--on-surface);
  border: 1px solid var(--outline-variant);
}

.btn-secondary:hover {
  border-color: var(--outline);
  background: var(--surface-container-low);
}

.btn-tertiary {
  background: var(--tertiary-container);
  color: #111111;
}

.btn-tertiary:hover {
  background: #a7c8ff;
}

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: var(--radius);
  background: var(--surface-container-low);
  border: 1px solid var(--outline-variant);
  color: var(--on-surface-variant);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.btn-icon:hover {
  background: var(--surface-container-high);
  border-color: var(--outline);
  color: var(--on-surface);
}

.btn-icon.active {
  background: var(--primary-container);
  border-color: var(--primary);
  color: var(--on-primary-container);
}

.btn-icon svg {
  width: 18px;
  height: 18px;
}

.btn-full {
  width: 100%;
}

.btn-sm {
  padding: 9px 14px;
  font-size: 12px;
  border-radius: var(--radius-sm);
  min-height: 32px;
}

/* --- Model Selector --- */
.model-options {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.model-option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--radius);
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  background: transparent;
  width: 100%;
  text-align: left;
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--on-surface);
}

.model-option:hover {
  background: var(--surface-container-low);
}

.model-option.selected {
  background: var(--surface-container);
  border-color: var(--primary-container);
}

.model-option .radio-dot {
  width: 16px;
  height: 16px;
  border-radius: var(--radius-full);
  border: 2px solid var(--outline);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.model-option.selected .radio-dot {
  border-color: var(--primary);
}

.model-option.selected .radio-dot::after {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--primary-container);
}

/* --- Upload Area --- */
.upload-area {
  border: 1.5px dashed var(--outline-variant);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  background: var(--surface-container-low);
  margin-top: 6px;
}

.upload-area:hover {
  border-color: var(--primary-container);
  background: var(--surface-warm-hover);
}

.upload-area svg {
  width: 24px;
  height: 24px;
  color: var(--outline);
  margin-bottom: 6px;
}

.upload-area .upload-label {
  font-size: 12px;
  color: var(--on-surface-variant);
}

.upload-area .upload-label strong {
  color: var(--primary);
}

/* --- File Chip (for uploaded OBJ) --- */
.file-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  background: var(--surface-container);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-sm);
  margin-top: 6px;
  font-size: 12px;
  color: var(--on-surface);
}

.file-chip .file-icon {
  width: 14px;
  height: 14px;
  color: var(--tertiary);
}

.file-chip .file-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-chip .file-remove {
  width: 18px;
  height: 18px;
  border: none;
  background: transparent;
  cursor: pointer;
  color: var(--outline);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  padding: 0;
}

.file-chip .file-remove:hover {
  background: var(--error-container);
  color: var(--error);
}

/* --- Warning Banner --- */
.warning-banner {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 10px;
  background: var(--error-container);
  border: 1px solid var(--error-border);
  border-radius: var(--radius);
  margin-top: 8px;
  font-size: 12px;
  color: var(--on-error-container);
  line-height: 1.4;
}

.warning-banner svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-top: 1px;
}

.warning-banner.hidden {
  display: none;
}

/* --- Info Note --- */
.info-note {
  display: flex;
  gap: 6px;
  padding: 8px 10px;
  background: var(--surface-container-low);
  border-radius: var(--radius-sm);
  font-size: 11px;
  color: var(--on-surface-variant);
  line-height: 1.5;
  margin-top: 6px;
}

.info-note svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  margin-top: 1px;
  color: var(--tertiary);
}

/* --- 3D Viewer Main Area --- */
.viewer-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--surface-container-lowest);
  position: relative;
  min-width: 0;
}

.viewer-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  background: var(--surface-container-lowest);
  border-bottom: var(--gutter) solid var(--surface-container-high);
  z-index: 10;
}

.viewer-toolbar-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.viewer-toolbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.toolbar-title {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  color: var(--on-surface);
}

.toolbar-badge {
  font-family: var(--font-label);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  background: var(--primary-fixed);
  color: var(--on-primary-fixed);
}

.viewer-canvas-container {
  flex: 1;
  position: relative;
  overflow: hidden;
  /* Subtle grid pattern for the workspace */
  background:
    var(--surface-container-low)
    radial-gradient(circle, var(--surface-container-high) 1px, transparent 1px);
  background-size: 24px 24px;
}

.viewer-canvas-container canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
}

/* --- Viewer Floating Controls --- */
.viewer-float-controls {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius-md);
  border: 1px solid var(--outline-variant);
  box-shadow: var(--shadow-ambient);
  z-index: 20;
}

.viewer-float-controls .btn-icon {
  width: 32px;
  height: 32px;
  background: transparent;
  border: none;
}

.viewer-float-controls .btn-icon:hover {
  background: var(--surface-container-high);
}

.viewer-float-controls .btn-icon.active {
  background: var(--primary-container);
  color: var(--on-primary-container);
}

.viewer-float-controls .divider {
  width: 1px;
  height: 20px;
  background: var(--outline-variant);
}

/* --- Status Bar --- */
.status-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 16px;
  background: var(--surface-container-lowest);
  border-top: var(--gutter) solid var(--surface-container-high);
  font-size: 11px;
  color: var(--on-surface-variant);
  min-height: 28px;
}

.status-left,
.status-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--color-success);
  display: inline-block;
}

.status-dot.inactive {
  background: var(--outline-variant);
}

.status-dot.warning {
  background: var(--primary-container);
}

/* --- Scrollbar Styling --- */
.sidebar::-webkit-scrollbar {
  width: 4px;
}

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

.sidebar::-webkit-scrollbar-thumb {
  background: var(--outline-variant);
  border-radius: 4px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
  background: var(--outline);
}

/* --- Tooltips --- */
[data-tooltip] {
  position: relative;
}

[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 8px;
  background: var(--inverse-surface);
  color: var(--inverse-on-surface);
  font-size: 11px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-fast);
  z-index: 100;
}

[data-tooltip]:hover::after,
[data-tooltip]:focus-visible::after {
  opacity: 1;
}

/* --- Animations --- */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

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


.animate-fade-in {
  animation: fadeIn var(--transition-slow) ease forwards;
}

.animate-pulse {
  animation: pulse 2s ease-in-out infinite;
}

/* --- Mobile Notice --- */
.mobile-notice {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--surface-container-lowest);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 32px 24px;
  gap: 16px;
}
.mobile-notice svg {
  width: 48px;
  height: 48px;
  color: var(--primary-container);
  opacity: 0.8;
}
.mobile-notice h2 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--on-surface);
}
.mobile-notice p {
  font-size: 14px;
  color: var(--on-surface-variant);
  max-width: 34ch;
  line-height: 1.5;
}
.mobile-notice a {
  display: inline-block;
  margin-top: 8px;
  padding: 10px 22px;
  background: var(--primary-container);
  color: var(--on-primary-fixed);
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 13px;
  text-decoration: none;
}

@media (max-width: 767px) {
  .app-shell { display: none; }
  .mobile-notice { display: flex; }
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
}

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

/* --- Focus-visible for keyboard nav --- */
:focus:not(:focus-visible) {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--primary-container);
  outline-offset: 2px;
}

/* --- Utility Classes --- */
.hidden {
  display: none !important;
}

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