/* ============================================
   面接くん - Fresh Light Design System
   White + Sky Blue 爽やかテーマ
   ============================================ */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Noto+Sans+JP:wght@300;400;500;600;700;800&display=swap');

/* ============================================
   CSS Custom Properties
   ============================================ */
:root {
  /* Colors - White + Sky Blue palette */
  --bg-primary: #f0f7ff;
  --bg-secondary: #ffffff;
  --bg-tertiary: #e8f4fd;
  --bg-card: #ffffff;
  --bg-card-hover: #f8fcff;
  --bg-glass: rgba(224, 242, 255, 0.45);
  --bg-glass-hover: rgba(200, 230, 255, 0.5);

  --accent-primary: #0ea5e9;
  --accent-secondary: #38bdf8;
  --accent-tertiary: #7dd3fc;
  --accent-deep: #0284c7;
  --accent-glow: rgba(14, 165, 233, 0.18);
  --accent-gradient: linear-gradient(135deg, #0ea5e9, #38bdf8, #67e8f9);
  --accent-gradient-hover: linear-gradient(135deg, #0284c7, #0ea5e9, #38bdf8);
  --accent-soft: rgba(14, 165, 233, 0.08);

  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --text-accent: #0284c7;

  --border-color: rgba(14, 165, 233, 0.18);
  --border-color-hover: rgba(14, 165, 233, 0.35);
  --border-subtle: rgba(148, 163, 184, 0.2);

  --success: #10b981;
  --success-bg: rgba(16, 185, 129, 0.08);
  --warning: #f59e0b;
  --warning-bg: rgba(245, 158, 11, 0.08);
  --danger: #ef4444;
  --danger-bg: rgba(239, 68, 68, 0.06);
  --info: #3b82f6;
  --info-bg: rgba(59, 130, 246, 0.06);

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  /* Border Radius */
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --radius-xl: 22px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(14, 165, 233, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 14px rgba(14, 165, 233, 0.08), 0 2px 6px rgba(0, 0, 0, 0.03);
  --shadow-lg: 0 8px 30px rgba(14, 165, 233, 0.10), 0 4px 12px rgba(0, 0, 0, 0.04);
  --shadow-glow: 0 4px 20px rgba(14, 165, 233, 0.15);
  --shadow-glow-strong: 0 8px 36px rgba(14, 165, 233, 0.22);
  --shadow-card: 0 2px 12px rgba(14, 165, 233, 0.06), 0 1px 4px rgba(0,0,0,0.03);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Typography */
  --font-sans: 'Noto Sans JP', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Z-index scale */
  --z-dropdown: 100;
  --z-modal: 200;
  --z-toast: 300;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* Soft decorative background blobs */
body::before,
body::after {
  content: '';
  position: fixed;
  border-radius: 50%;
  z-index: 0;
  pointer-events: none;
  filter: blur(80px);
}

body::before {
  top: -120px;
  right: -80px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.18) 0%, transparent 70%);
  animation: blobFloat1 18s ease-in-out infinite;
}

body::after {
  bottom: -100px;
  left: -60px;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(103, 232, 249, 0.14) 0%, transparent 70%);
  animation: blobFloat2 22s ease-in-out infinite;
}

@keyframes blobFloat1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(-30px, 20px) scale(1.05); }
  66% { transform: translate(15px, -15px) scale(0.97); }
}

@keyframes blobFloat2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  40% { transform: translate(25px, -20px) scale(1.04); }
  70% { transform: translate(-15px, 15px) scale(0.96); }
}

/* ============================================
   Container & Layout
   ============================================ */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  position: relative;
  z-index: 1;
}

/* ============================================
   Header
   ============================================ */
.header {
  padding: var(--space-2xl) 0 var(--space-xl);
  text-align: center;
  position: relative;
}

.header__logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.header__icon {
  width: 58px;
  height: 58px;
  background: var(--accent-gradient);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  box-shadow: var(--shadow-glow-strong);
  animation: iconFloat 3s ease-in-out infinite;
}

@keyframes iconFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

.header__title {
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, #0284c7, #0ea5e9, #38bdf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.header__subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  font-weight: 400;
  letter-spacing: 0.02em;
}

/* ============================================
   Cards & Sections
   ============================================ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  margin-bottom: var(--space-lg);
  box-shadow: var(--shadow-card);
  transition: border-color var(--transition-normal),
              box-shadow var(--transition-normal),
              transform var(--transition-normal);
}

.card:hover {
  border-color: var(--border-color-hover);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.card__header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.card__icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.card__icon--key { background: rgba(14, 165, 233, 0.1); }
.card__icon--upload { background: rgba(59, 130, 246, 0.1); }
.card__icon--job { background: rgba(245, 158, 11, 0.1); }
.card__icon--report { background: rgba(16, 185, 129, 0.1); }

.card__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.card__description {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-left: auto;
}

/* ============================================
   API Key Section
   ============================================ */
.api-key-group {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
}

.api-key-group input {
  flex: 1;
}

.api-key-hint {
  margin-top: var(--space-sm);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.api-key-hint a {
  color: var(--accent-primary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.api-key-hint a:hover {
  color: var(--accent-deep);
  text-decoration: underline;
}

.api-key-status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.8rem;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-full);
  font-weight: 500;
  margin-top: var(--space-sm);
}

.api-key-status--saved {
  background: var(--success-bg);
  color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.api-key-status--unsaved {
  background: var(--warning-bg);
  color: var(--warning);
  border: 1px solid rgba(245, 158, 11, 0.2);
}

/* ============================================
   Form Elements
   ============================================ */
input[type="text"],
input[type="password"],
textarea {
  width: 100%;
  padding: var(--space-md);
  background: var(--bg-tertiary);
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--transition-fast),
              box-shadow var(--transition-fast),
              background var(--transition-fast);
}

input[type="text"]:focus,
input[type="password"]:focus,
textarea:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-glow);
  background: #fff;
}

input[type="text"]::placeholder,
input[type="password"]::placeholder,
textarea::placeholder {
  color: var(--text-muted);
}

textarea {
  min-height: 120px;
  resize: vertical;
  line-height: 1.7;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn:hover::after {
  opacity: 1;
}

.btn--primary {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: var(--shadow-glow);
}

.btn--primary:hover {
  background: var(--accent-gradient-hover);
  box-shadow: var(--shadow-glow-strong);
  transform: translateY(-1px);
}

.btn--primary:active {
  transform: translateY(0);
}

.btn--secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1.5px solid var(--border-color);
}

.btn--secondary:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-color-hover);
  box-shadow: var(--shadow-sm);
}

.btn--sm {
  padding: var(--space-sm) var(--space-md);
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

.btn--icon {
  padding: var(--space-sm);
  width: 40px;
  height: 40px;
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none !important;
}

/* ============================================
   Upload Zone
   ============================================ */
.upload-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

@media (max-width: 640px) {
  .upload-grid {
    grid-template-columns: 1fr;
  }
}

.upload-zone {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  min-height: 200px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  background: var(--bg-tertiary);
}

.upload-zone::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--accent-gradient);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.upload-zone:hover,
.upload-zone--dragover {
  border-color: var(--accent-primary);
  background: rgba(14, 165, 233, 0.06);
  box-shadow: 0 0 0 4px var(--accent-glow);
}

.upload-zone:hover::before,
.upload-zone--dragover::before {
  opacity: 0.03;
}

.upload-zone--has-file {
  border-color: var(--success);
  border-style: solid;
  background: var(--success-bg);
}

.upload-zone__icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-xs);
  transition: transform var(--transition-spring);
}

.upload-zone:hover .upload-zone__icon {
  transform: scale(1.12) translateY(-3px);
}

.upload-zone__label {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.upload-zone__hint {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.upload-zone__filename {
  font-size: 0.85rem;
  color: var(--success);
  font-weight: 500;
  word-break: break-all;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.upload-zone__remove {
  background: none;
  border: none;
  color: var(--danger);
  cursor: pointer;
  font-size: 1.1rem;
  padding: 2px;
  line-height: 1;
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}

.upload-zone__remove:hover {
  opacity: 1;
}

.upload-zone input[type="file"] {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ============================================
   Generate Button (Large)
   ============================================ */
.generate-section {
  text-align: center;
  padding: var(--space-lg) 0;
}

.btn--generate {
  padding: var(--space-md) var(--space-3xl);
  font-size: 1.1rem;
  border-radius: var(--radius-lg);
  letter-spacing: 0.02em;
}

.btn--generate .spinner {
  display: none;
  width: 20px;
  height: 20px;
  border: 2.5px solid rgba(255,255,255,0.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

.btn--generate.is-loading .spinner {
  display: block;
}

.btn--generate.is-loading .btn-text {
  display: none;
}

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

/* ============================================
   Progress / Loading
   ============================================ */
.progress-section {
  display: none;
  text-align: center;
  padding: var(--space-xl);
}

.progress-section.is-visible {
  display: block;
  animation: fadeIn 0.3s ease;
}

.progress-bar {
  width: 100%;
  height: 7px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: var(--space-md);
  border: 1px solid var(--border-subtle);
}

.progress-bar__fill {
  height: 100%;
  background: var(--accent-gradient);
  border-radius: var(--radius-full);
  transition: width var(--transition-slow);
  width: 0%;
}

.progress-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.progress-steps {
  display: flex;
  justify-content: center;
  gap: var(--space-xl);
  margin-top: var(--space-lg);
}

.progress-step {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: color var(--transition-normal);
}

.progress-step.is-active {
  color: var(--accent-primary);
  font-weight: 600;
}

.progress-step.is-done {
  color: var(--success);
}

.progress-step__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #cbd5e1;
  transition: all var(--transition-normal);
}

.progress-step.is-active .progress-step__dot {
  background: var(--accent-primary);
  box-shadow: 0 0 10px var(--accent-glow);
  animation: pulse 1.5s infinite;
}

.progress-step.is-done .progress-step__dot {
  background: var(--success);
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.4); }
}

/* ============================================
   Report Section
   ============================================ */
.report-section {
  display: none;
  animation: slideUp 0.5s ease;
}

.report-section.is-visible {
  display: block;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

.report-actions {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

/* Report cards */
.report-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  margin-bottom: var(--space-lg);
  box-shadow: var(--shadow-card);
  animation: fadeIn 0.4s ease;
}

.report-card__header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 1.5px solid var(--bg-tertiary);
}

.report-card__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.report-card__icon--summary { background: linear-gradient(135deg, rgba(59, 130, 246, 0.12), rgba(14, 165, 233, 0.12)); }
.report-card__icon--questions { background: linear-gradient(135deg, rgba(14, 165, 233, 0.12), rgba(56, 189, 248, 0.12)); }
.report-card__icon--warnings { background: linear-gradient(135deg, rgba(245, 158, 11, 0.12), rgba(239, 68, 68, 0.12)); }
.report-card__icon--checklist { background: linear-gradient(135deg, rgba(16, 185, 129, 0.12), rgba(59, 130, 246, 0.12)); }

.report-card__title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* Summary grid */
.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
}

.summary-item {
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  border: 1px solid var(--border-subtle);
}

.summary-item__label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-xs);
  font-weight: 600;
}

.summary-item__value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Question categories */
.question-category {
  margin-bottom: var(--space-xl);
}

.question-category:last-child {
  margin-bottom: 0;
}

.question-category__title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent-deep);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.question-category__title::before {
  content: '';
  width: 4px;
  height: 18px;
  background: var(--accent-gradient);
  border-radius: var(--radius-full);
}

.question-item {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  margin-bottom: var(--space-sm);
  transition: all var(--transition-normal);
  position: relative;
  padding-left: calc(var(--space-lg) + 30px);
}

.question-item:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-color);
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
}

.question-item__number {
  position: absolute;
  left: var(--space-md);
  top: 50%;
  transform: translateY(-50%);
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}

.question-item__text {
  font-size: 0.95rem;
  color: var(--text-primary);
  line-height: 1.6;
}

.question-item__intent {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: var(--space-xs);
  font-style: italic;
}

/* Warning items */
.warning-item {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
  transition: all var(--transition-normal);
}

.warning-item:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
}

.warning-item--high {
  background: var(--danger-bg);
  border: 1px solid rgba(239, 68, 68, 0.18);
}

.warning-item--medium {
  background: var(--warning-bg);
  border: 1px solid rgba(245, 158, 11, 0.18);
}

.warning-item--low {
  background: var(--info-bg);
  border: 1px solid rgba(59, 130, 246, 0.18);
}

.warning-item__icon {
  font-size: 1.2rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.warning-item__content {
  flex: 1;
}

.warning-item__title {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: var(--space-xs);
}

.warning-item--high .warning-item__title { color: var(--danger); }
.warning-item--medium .warning-item__title { color: var(--warning); }
.warning-item--low .warning-item__title { color: var(--info); }

.warning-item__description {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Checklist */
.checklist-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
  transition: all var(--transition-normal);
}

.checklist-item:hover {
  background: var(--bg-glass-hover);
  box-shadow: var(--shadow-sm);
}

.checklist-item__checkbox {
  width: 24px;
  height: 24px;
  border: 2px solid #cbd5e1;
  border-radius: 7px;
  flex-shrink: 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  margin-top: 1px;
  background: #fff;
}

.checklist-item__checkbox:hover {
  border-color: var(--accent-primary);
  background: var(--accent-soft);
}

.checklist-item__checkbox.is-checked {
  background: var(--accent-gradient);
  border-color: transparent;
  box-shadow: var(--shadow-sm);
}

.checklist-item__checkbox.is-checked::after {
  content: '✓';
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
}

.checklist-item__text {
  font-size: 0.95rem;
  color: var(--text-primary);
  flex: 1;
}

.checklist-item__point {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: var(--space-xs);
}

/* ============================================
   Toast Notifications
   ============================================ */
.toast-container {
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.toast {
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  animation: toastIn 0.3s ease, toastOut 0.3s ease 3s forwards;
  box-shadow: var(--shadow-lg);
  max-width: 400px;
  background: #fff;
}

.toast--success {
  color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-left: 4px solid var(--success);
}

.toast--error {
  color: var(--danger);
  border: 1px solid rgba(239, 68, 68, 0.25);
  border-left: 4px solid var(--danger);
}

.toast--info {
  color: var(--info);
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-left: 4px solid var(--info);
}

@keyframes toastIn {
  from { opacity: 0; transform: translateX(100px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes toastOut {
  from { opacity: 1; transform: translateX(0); }
  to { opacity: 0; transform: translateX(100px); }
}

/* ============================================
   Error state
   ============================================ */
.error-message {
  background: var(--danger-bg);
  border: 1px solid rgba(239, 68, 68, 0.18);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  color: var(--danger);
  font-size: 0.9rem;
  display: none;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.error-message.is-visible {
  display: flex;
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.fade-in {
  animation: fadeIn 0.4s ease;
}

/* Staggered card reveal */
.card:nth-child(1) { animation-delay: 0ms; }
.card:nth-child(2) { animation-delay: 80ms; }
.card:nth-child(3) { animation-delay: 160ms; }
.card:nth-child(4) { animation-delay: 240ms; }

.report-card:nth-child(1) { animation-delay: 0ms; }
.report-card:nth-child(2) { animation-delay: 100ms; }
.report-card:nth-child(3) { animation-delay: 200ms; }
.report-card:nth-child(4) { animation-delay: 300ms; }

/* ============================================
   Footer
   ============================================ */
.footer {
  text-align: center;
  padding: var(--space-2xl) 0 var(--space-xl);
  color: var(--text-muted);
  font-size: 0.8rem;
}

.footer a {
  color: var(--accent-primary);
  text-decoration: none;
  font-weight: 500;
}

.footer a:hover {
  text-decoration: underline;
}

/* ============================================
   Modal
   ============================================ */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.5);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: var(--z-modal);
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  animation: fadeIn 0.2s ease;
}

.modal-overlay.is-visible {
  display: flex;
}

.modal {
  background: #fff;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg), 0 0 0 1px var(--border-color);
  width: 100%;
  max-width: 800px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  animation: slideUp 0.3s ease;
}

.modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg) var(--space-xl);
  border-bottom: 1.5px solid var(--bg-tertiary);
  flex-shrink: 0;
}

.modal__header-left {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.modal__icon {
  font-size: 1.3rem;
}

.modal__title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
}

.modal__close {
  background: none;
  border: none;
  font-size: 1.2rem;
  color: var(--text-muted);
  cursor: pointer;
  padding: var(--space-xs);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  line-height: 1;
}

.modal__close:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.modal__body {
  padding: var(--space-xl);
  overflow-y: auto;
  flex: 1;
}

.modal__footer {
  padding: var(--space-md) var(--space-xl);
  border-top: 1.5px solid var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  flex-shrink: 0;
}

.modal__footer-info {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.modal__footer-actions {
  display: flex;
  gap: var(--space-sm);
}

/* ============================================
   Masking Info Banner
   ============================================ */
.masking-info {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.06), rgba(56, 189, 248, 0.06));
  border: 1px solid rgba(14, 165, 233, 0.15);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
}

.masking-info__icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.masking-info__text strong {
  display: block;
  font-size: 0.95rem;
  color: var(--accent-deep);
  margin-bottom: var(--space-xs);
}

.masking-info__text p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.masking-info--empty {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.06), rgba(52, 211, 153, 0.06));
  border-color: rgba(16, 185, 129, 0.15);
}

.masking-info--empty strong {
  color: var(--success);
}

/* ============================================
   Masking Detections
   ============================================ */
.masking-detections {
  margin-bottom: var(--space-lg);
}

.masking-detection-group {
  margin-bottom: var(--space-md);
}

.masking-detection-group__header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.masking-detection-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-xs);
  transition: all var(--transition-fast);
}

.masking-detection-item:hover {
  background: var(--bg-glass-hover);
}

.masking-detection-item__original {
  flex: 1;
  font-size: 0.9rem;
  color: var(--text-primary);
  font-family: var(--font-sans);
}

.masking-detection-item__arrow {
  color: var(--text-muted);
  font-size: 0.85rem;
  flex-shrink: 0;
}

.masking-detection-item__masked {
  font-size: 0.85rem;
  color: var(--accent-deep);
  font-weight: 600;
  background: rgba(14, 165, 233, 0.08);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

/* Toggle switch */
.toggle {
  position: relative;
  width: 40px;
  height: 22px;
  flex-shrink: 0;
}

.toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle__slider {
  position: absolute;
  inset: 0;
  background: #cbd5e1;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.toggle__slider::before {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff;
  top: 3px;
  left: 3px;
  transition: transform var(--transition-fast);
  box-shadow: 0 1px 3px rgba(0,0,0,0.15);
}

.toggle input:checked + .toggle__slider {
  background: var(--accent-primary);
}

.toggle input:checked + .toggle__slider::before {
  transform: translateX(18px);
}

/* ============================================
   Masking Preview Tabs & Text
   ============================================ */
.masking-preview-tabs {
  display: flex;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
  border-bottom: 2px solid var(--bg-tertiary);
  padding-bottom: 0;
}

.masking-tab {
  padding: var(--space-sm) var(--space-md);
  background: none;
  border: none;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all var(--transition-fast);
}

.masking-tab:hover {
  color: var(--text-primary);
}

.masking-tab.is-active {
  color: var(--accent-primary);
  border-bottom-color: var(--accent-primary);
  font-weight: 600;
}

.masking-preview {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  max-height: 300px;
  overflow-y: auto;
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--text-secondary);
  white-space: pre-wrap;
  word-break: break-all;
}

.masking-preview .masked-text {
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.12), rgba(56, 189, 248, 0.12));
  color: var(--accent-deep);
  font-weight: 600;
  padding: 1px 6px;
  border-radius: 4px;
  border: 1px solid rgba(14, 165, 233, 0.2);
}

/* ============================================
   Print Styles
   ============================================ */

@media print {
  body {
    background: #fff;
    color: #1a1a1a;
  }

  body::before, body::after { display: none; }

  .header, .card:not(.report-card),
  .generate-section, .progress-section,
  .report-actions, .toast-container, .footer {
    display: none !important;
  }

  .report-section {
    display: block !important;
  }

  .report-card {
    background: #fff;
    border: 1px solid #ddd;
    box-shadow: none;
    break-inside: avoid;
    page-break-inside: avoid;
  }

  .question-item,
  .warning-item,
  .checklist-item,
  .summary-item {
    background: #f9f9f9;
    border-color: #ddd;
  }

  .question-item__number {
    background: #0ea5e9;
  }
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 768px) {
  .container {
    padding: 0 var(--space-md);
  }

  .header__title {
    font-size: 1.8rem;
  }

  .card {
    padding: var(--space-lg);
  }

  .report-card {
    padding: var(--space-lg);
  }

  .api-key-group {
    flex-direction: column;
  }

  .api-key-group .btn {
    width: 100%;
  }

  .progress-steps {
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
  }

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

@media (max-width: 480px) {
  .header__title {
    font-size: 1.5rem;
  }

  .header__icon {
    width: 44px;
    height: 44px;
    font-size: 22px;
  }

  .btn--generate {
    width: 100%;
    padding: var(--space-md) var(--space-xl);
  }

  .report-actions {
    flex-direction: column;
  }

  .report-actions .btn {
    width: 100%;
  }
}