/**
 * styles.css - Personal Color Test Styles
 * White base theme with CSS variables for dynamic theming
 */

/* ========================================
   CSS Variables (Theme Tokens)
   ======================================== */
:root {
  /* Default White Theme */
  --bg: #FFFFFF;
  --surface: #FFFFFF;
  --surface2: #F6F7FB;
  --border: #E5E7EB;
  --text: #0B1220;
  --text2: #475569;
  --accent: #111827;
  --accentText: #FFFFFF;
  --chip: #F1F5F9;
  --chipText: #0F172A;
  --shadow: rgba(0, 0, 0, 0.08);

  /* Fixed Colors */
  --success: #10B981;
  --warning: #F59E0B;
  --error: #EF4444;
  --info: #3B82F6;

  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-base: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 20px;
  --font-size-2xl: 24px;
  --font-size-3xl: 30px;
  --font-size-4xl: 36px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 400ms ease;
}

/* ========================================
   Reset & Base Styles
   ======================================== */
*, *::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-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text);
  background-color: var(--bg);
  min-height: 100vh;
  transition: background-color var(--transition-normal);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

a:hover {
  opacity: 0.8;
}

/* ========================================
   Layout
   ======================================== */
.container {
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.page-content {
  flex: 1;
  padding: var(--spacing-xl) 0;
}

.section {
  margin-bottom: var(--spacing-xl);
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: 0 2px 8px var(--shadow);
}

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  color: var(--text);
}

h1 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-md);
}

h2 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-md);
}

h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
}

.text-secondary {
  color: var(--text2);
}

.text-center {
  text-align: center;
}

.text-small {
  font-size: var(--font-size-sm);
}

.text-xs {
  font-size: var(--font-size-xs);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-base);
  font-weight: 600;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

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

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

.btn-primary:hover:not(:disabled) {
  opacity: 0.9;
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border: 2px solid var(--border);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--surface2);
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 2px solid var(--accent);
}

.btn-outline:hover:not(:disabled) {
  background: var(--accent);
  color: var(--accentText);
}

.btn-block {
  width: 100%;
}

.btn-lg {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: var(--font-size-lg);
}

.btn-sm {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
}

/* ========================================
   Privacy Notice
   ======================================== */
.privacy-notice {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background: var(--surface2);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
}

.privacy-notice-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--success);
}

.privacy-notice-text {
  font-size: var(--font-size-sm);
  color: var(--text2);
  line-height: 1.5;
}

/* ========================================
   Landing Page
   ======================================== */
.landing-hero {
  text-align: center;
  padding: var(--spacing-2xl) 0;
}

.landing-title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.landing-subtitle {
  font-size: var(--font-size-lg);
  color: var(--text2);
  margin-bottom: var(--spacing-xl);
}

.landing-cta {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

.landing-note {
  font-size: var(--font-size-xs);
  color: var(--text2);
  margin-top: var(--spacing-lg);
}

/* ========================================
   Scan Page
   ======================================== */
.scan-container {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  max-width: 400px;
  margin: 0 auto var(--spacing-xl);
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--surface2);
}

.scan-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scaleX(-1);
}

.scan-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.face-guide {
  width: 70%;
  height: 70%;
  border: 3px dashed rgba(255, 255, 255, 0.6);
  border-radius: 50%;
  box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.3);
}

.face-guide.captured {
  border-color: var(--success);
  border-style: solid;
}

.scan-status {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.scan-status-text {
  font-size: var(--font-size-lg);
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
}

.scan-status-sub {
  font-size: var(--font-size-sm);
  color: var(--text2);
}

.frame-indicators {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.frame-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--border);
  transition: background var(--transition-fast);
}

.frame-dot.captured {
  background: var(--success);
}

/* Lighting Check */
.lighting-check {
  text-align: center;
  padding: var(--spacing-lg);
}

.lighting-progress {
  width: 100%;
  height: 4px;
  background: var(--border);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin: var(--spacing-md) 0;
}

.lighting-progress-bar {
  height: 100%;
  background: var(--accent);
  border-radius: var(--radius-full);
  transition: width var(--transition-normal);
}

.lighting-warning {
  background: #FEF3C7;
  border: 1px solid #F59E0B;
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.lighting-warning-title {
  font-weight: 600;
  color: #92400E;
  margin-bottom: var(--spacing-sm);
}

.lighting-warning-actions {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

/* ========================================
   Modal
   ======================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--surface);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  max-width: 400px;
  width: 100%;
  transform: translateY(20px);
  transition: transform var(--transition-normal);
}

.modal-overlay.active .modal {
  transform: translateY(0);
}

.modal-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-lg);
}

.modal-tips {
  list-style: none;
  margin-bottom: var(--spacing-xl);
}

.modal-tips li {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) 0;
  font-size: var(--font-size-sm);
  color: var(--text2);
}

.modal-tips li::before {
  content: "•";
  color: var(--accent);
  font-weight: bold;
}

/* ========================================
   Analyzing Page
   ======================================== */
.analyzing-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  text-align: center;
}

.analyzing-animation {
  width: 200px;
  height: 200px;
  margin-bottom: var(--spacing-xl);
  position: relative;
}

.draping-circle {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  animation: draping 2s ease-in-out infinite;
}

.draping-circle:nth-child(1) {
  width: 180px;
  height: 180px;
  background: rgba(102, 126, 234, 0.2);
  animation-delay: 0s;
}

.draping-circle:nth-child(2) {
  width: 140px;
  height: 140px;
  background: rgba(118, 75, 162, 0.3);
  animation-delay: 0.3s;
}

.draping-circle:nth-child(3) {
  width: 100px;
  height: 100px;
  background: rgba(236, 72, 153, 0.4);
  animation-delay: 0.6s;
}

.draping-circle:nth-child(4) {
  width: 60px;
  height: 60px;
  background: rgba(59, 130, 246, 0.5);
  animation-delay: 0.9s;
}

@keyframes draping {
  0%, 100% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.8;
  }
  50% {
    transform: translate(-50%, -50%) scale(1.1);
    opacity: 1;
  }
}

.analyzing-text {
  font-size: var(--font-size-xl);
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
}

.analyzing-subtext {
  font-size: var(--font-size-sm);
  color: var(--text2);
}

.analyzing-progress {
  width: 100%;
  max-width: 300px;
  height: 6px;
  background: var(--border);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-top: var(--spacing-xl);
}

.analyzing-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, #667eea, #764ba2);
  border-radius: var(--radius-full);
  transition: width var(--transition-slow);
}

/* ========================================
   Result Page
   ======================================== */
.result-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.result-type-name {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.result-keywords {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.keyword-chip {
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--chip);
  color: var(--chipText);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.result-oneliner {
  font-size: var(--font-size-lg);
  color: var(--text2);
  font-style: italic;
}

/* Palette Section */
.palette-section {
  margin-bottom: var(--spacing-xl);
}

.palette-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.palette-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--spacing-sm);
}

.palette-grid.worst {
  grid-template-columns: repeat(4, 1fr);
}

.palette-swatch {
  aspect-ratio: 1;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: transform var(--transition-fast);
  border: 1px solid var(--border);
  position: relative;
}

.palette-swatch:hover {
  transform: scale(1.05);
}

.palette-swatch.active::after {
  content: attr(data-hex);
  position: absolute;
  bottom: -24px;
  left: 50%;
  transform: translateX(-50%);
  font-size: var(--font-size-xs);
  color: var(--text2);
  white-space: nowrap;
}

/* Reliability Section */
.reliability-section {
  margin-bottom: var(--spacing-xl);
}

.reliability-score {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg);
  background: var(--surface2);
  border-radius: var(--radius-lg);
}

.reliability-number {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  line-height: 1;
}

.reliability-grade {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--accent);
  color: var(--accentText);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-left: var(--spacing-sm);
}

.reliability-grade.grade-a {
  background: var(--success);
}

.reliability-grade.grade-b {
  background: var(--info);
}

.reliability-grade.grade-c {
  background: var(--warning);
}

.reliability-grade.grade-d {
  background: var(--error);
}

.reliability-message {
  font-size: var(--font-size-sm);
  color: var(--text2);
}

/* Metrics Section */
.metrics-section {
  margin-bottom: var(--spacing-xl);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-sm);
}

.metric-item {
  padding: var(--spacing-md);
  background: var(--surface2);
  border-radius: var(--radius-md);
}

.metric-label {
  font-size: var(--font-size-xs);
  color: var(--text2);
  margin-bottom: var(--spacing-xs);
}

.metric-value {
  font-size: var(--font-size-lg);
  font-weight: 600;
}

/* Action Buttons */
.result-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

/* AdSense Container */
.adsense-container {
  margin: var(--spacing-xl) 0;
  padding: var(--spacing-md);
  background: var(--surface2);
  border-radius: var(--radius-md);
  min-height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.adsense-placeholder {
  font-size: var(--font-size-sm);
  color: var(--text2);
}

/* ========================================
   Toast Notifications
   ======================================== */
.toast-container {
  position: fixed;
  bottom: var(--spacing-xl);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1001;
}

.toast {
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--text);
  color: var(--surface);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  box-shadow: 0 4px 12px var(--shadow);
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition-normal);
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* ========================================
   Loading States
   ======================================== */
.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.9);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.loading-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* ========================================
   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;
}

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 480px) {
  :root {
    --font-size-3xl: 26px;
    --font-size-4xl: 32px;
  }

  .container {
    padding: 0 var(--spacing-sm);
  }

  .landing-title {
    font-size: var(--font-size-3xl);
  }

  .palette-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .palette-grid.worst {
    grid-template-columns: repeat(2, 1fr);
  }

  .metrics-grid {
    grid-template-columns: 1fr;
  }
}