/* ============================================
   Variables & Reset
   ============================================ */
:root {
    /* Couleurs principales */
    --color-orange: #FF9F6E;
    --color-orange-dark: #FF8547;
    --color-orange-light: #FFB890;
    --color-blue: #6EBFFF;
    --color-blue-dark: #4DA8E8;
    --color-blue-light: #A3D9FF;
    --color-cream: #FFF5E1;
    --color-cream-dark: #FFE9C5;
    
    /* Couleurs neutres */
    --color-white: #FFFFFF;
    --color-gray-50: #F9FAFB;
    --color-gray-100: #F3F4F6;
    --color-gray-200: #E5E7EB;
    --color-gray-300: #D1D5DB;
    --color-gray-400: #9CA3AF;
    --color-gray-500: #6B7280;
    --color-gray-600: #4B5563;
    --color-gray-700: #374151;
    --color-gray-800: #1F2937;
    --color-gray-900: #111827;
    
    /* Typographie */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-serif: 'Playfair Display', Georgia, serif;
    
    /* Espacements */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-gray-800);
    background: linear-gradient(135deg, var(--color-cream) 0%, var(--color-white) 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-gray-900);
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.875rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

/* ============================================
   Layout Components
   ============================================ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.container-wide {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ============================================
   Header
   ============================================ */
.header {
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
}

.logo-text {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-gray-900);
}

.nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-link {
    color: var(--color-gray-600);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-orange);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    padding: 0.625rem 1.5rem;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9375rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    font-family: var(--font-sans);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-orange) 0%, var(--color-orange-dark) 100%);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

.btn-secondary:hover {
    background: var(--color-orange);
    color: var(--color-white);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-action {
    background: linear-gradient(135deg, var(--color-blue) 0%, var(--color-blue-dark) 100%);
    color: var(--color-white);
    padding: 1.25rem 2rem;
    font-size: 1.125rem;
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-xl);
    font-weight: 700;
    white-space: nowrap;
}

.btn-action:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

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

.icon-btn {
    padding: var(--spacing-sm);
    background: transparent;
    border: none;
    color: var(--color-gray-500);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-btn:hover {
    background: var(--color-gray-100);
    color: var(--color-orange);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.75rem;
    margin-bottom: var(--spacing-lg);
    line-height: 1.1;
}

.highlight {
    background: linear-gradient(135deg, var(--color-orange) 0%, var(--color-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.highlight-solid {
    color: var(--color-orange);
    font-weight: 700;
}

.hero-subtitle {
    font-size: 1.375rem;
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   Demo Section
   ============================================ */
.demo-section {
    padding: var(--spacing-3xl) 0;
    background: var(--color-white);
}

.demo-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.demo-container {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
    margin-bottom: var(--spacing-3xl);
}

.demo-panel {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.demo-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--color-gray-100);
}

.demo-badge {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 600;
}

.ai-badge {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: var(--color-white);
}

.human-badge {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: var(--color-white);
}

.detection-score {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.score-number {
    font-size: 1.75rem;
    font-weight: 700;
    font-family: var(--font-serif);
}

.score-text {
    font-size: 0.75rem;
    color: var(--color-gray-600);
}

.high-score .score-number {
    color: #ef4444;
}

.low-score .score-number {
    color: #10b981;
}

.demo-text {
    padding: var(--spacing-lg);
    background: var(--color-gray-50);
    border-radius: var(--radius-md);
    line-height: 1.8;
    color: var(--color-gray-800);
    min-height: 150px;
}

.demo-text p {
    margin: 0;
}

.demo-indicators {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.indicator-item {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
}

.indicator-item.bad {
    background: #fee2e2;
    color: #991b1b;
}

.indicator-item.good {
    background: #d1fae5;
    color: #065f46;
}

.demo-arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-orange);
}

.demo-arrow svg {
    animation: pulse 2s ease-in-out infinite;
}

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

.arrow-label {
    font-weight: 700;
    font-size: 0.875rem;
    color: var(--color-orange);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ============================================
   CTA Section
   ============================================ */
.cta-section {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--color-cream) 0%, var(--color-white) 100%);
    border-radius: var(--radius-xl);
    border: 2px dashed var(--color-orange);
}

.cta-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-gray-900);
}

.cta-description {
    font-size: 1rem;
    color: var(--color-gray-600);
    margin: 0;
}

/* ============================================
   Application Section
   ============================================ */
.app-section {
    padding: var(--spacing-2xl) 0;
    background: var(--color-white);
}

.stats-bar {
    display: flex;
    justify-content: space-around;
    background: linear-gradient(135deg, var(--color-cream) 0%, var(--color-white) 100%);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-2xl);
    box-shadow: var(--shadow-md);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.stat-icon {
    font-size: 2rem;
}

.stat-content {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--color-orange);
    font-family: var(--font-serif);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-gray-600);
}

/* ============================================
   Editor Container
   ============================================ */
.editor-container {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
    align-items: start;
}

.editor-panel {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 600px;
}

.panel-header {
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-cream) 0%, var(--color-white) 100%);
    border-bottom: 2px solid var(--color-gray-100);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.panel-title {
    font-size: 1.125rem;
    margin: 0;
}

.panel-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.word-count {
    font-size: 0.875rem;
    color: var(--color-gray-500);
    font-weight: 500;
}

.text-editor {
    flex: 1;
    width: 100%;
    padding: var(--spacing-lg);
    border: none;
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.8;
    resize: none;
    outline: none;
    color: var(--color-gray-800);
}

.text-editor::placeholder {
    color: var(--color-gray-400);
}

.text-display {
    flex: 1;
    padding: var(--spacing-lg);
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.8;
    color: var(--color-gray-800);
    overflow-y: auto;
    white-space: pre-wrap;
}

.text-display[data-placeholder]:empty::before {
    content: attr(data-placeholder);
    color: var(--color-gray-400);
}

.panel-footer {
    padding: var(--spacing-lg);
    background: var(--color-gray-50);
    border-top: 2px solid var(--color-gray-100);
}

.tone-selector {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.tone-label {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--color-gray-700);
}

.tone-options {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.tone-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--color-gray-200);
    background: var(--color-white);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--color-gray-700);
}

.tone-btn:hover {
    border-color: var(--color-orange);
    background: var(--color-cream);
}

.tone-btn.active {
    border-color: var(--color-orange);
    background: var(--color-orange);
    color: var(--color-white);
}

.editor-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    align-self: center;
}

.improvements-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.improvement-item {
    display: flex;
    align-items: start;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--color-cream);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    color: var(--color-gray-700);
}

.improvement-icon {
    font-size: 1rem;
    flex-shrink: 0;
}

/* ============================================
   Score Card
   ============================================ */
.score-card {
    background: linear-gradient(135deg, var(--color-white) 0%, var(--color-cream) 100%);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

.score-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
}

.score-header h4 {
    font-size: 1.25rem;
    margin: 0;
}

.score-circle {
    position: relative;
    width: 120px;
    height: 120px;
}

.score-ring {
    transform: rotate(-90deg);
}

.score-ring-bg {
    fill: none;
    stroke: var(--color-gray-200);
    stroke-width: 8;
}

.score-ring-progress {
    fill: none;
    stroke: url(#scoreGradient);
    stroke-width: 8;
    stroke-linecap: round;
    stroke-dasharray: 314;
    stroke-dashoffset: 314;
    transition: stroke-dashoffset 1s ease-in-out;
}

.score-value {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-orange);
    font-family: var(--font-serif);
}

.score-label-detail {
    font-size: 0.75rem;
    color: var(--color-gray-600);
    text-align: center;
    margin-top: var(--spacing-sm);
    font-style: italic;
}

.score-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.score-metric {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.metric-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-gray-700);
}

.metric-bar {
    height: 12px;
    background: var(--color-gray-200);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.metric-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-orange) 0%, var(--color-blue) 100%);
    border-radius: var(--radius-xl);
    transition: width 1s ease-in-out;
}

.badges-earned {
    grid-column: 1 / -1;
    display: flex;
    gap: var(--spacing-md);
    padding-top: var(--spacing-lg);
    border-top: 2px solid var(--color-gray-200);
    flex-wrap: wrap;
}

.badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    animation: badgeAppear 0.5s ease-out;
}

@keyframes badgeAppear {
    from {
        opacity: 0;
        transform: scale(0.5);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.badge-icon {
    font-size: 2.5rem;
}

.badge-name {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-gray-700);
    text-align: center;
}

/* ============================================
   Features Section
   ============================================ */
.features {
    padding: var(--spacing-3xl) 0;
    background: var(--color-white);
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-2xl);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.feature-card {
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--color-white) 0%, var(--color-cream) 100%);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.feature-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.feature-description {
    color: var(--color-gray-600);
    line-height: 1.7;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--color-gray-900);
    color: var(--color-gray-300);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
    width: 100%;
    margin-top: auto;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.footer-tagline {
    color: var(--color-gray-400);
    font-size: 0.9375rem;
}

.footer-title {
    font-size: 1rem;
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a {
    color: var(--color-gray-400);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-orange);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-gray-800);
    color: var(--color-gray-500);
    font-size: 0.875rem;
}

/* ============================================
   Toast Notification
   ============================================ */
.toast {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    background: var(--color-gray-900);
    color: var(--color-white);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    transform: translateY(150%);
    transition: transform var(--transition-normal);
    z-index: 2000;
    max-width: 400px;
}

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

.toast.success {
    background: linear-gradient(135deg, var(--color-orange) 0%, var(--color-orange-dark) 100%);
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    .editor-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .editor-divider {
        transform: rotate(90deg);
    }
    
    .score-card {
        grid-template-columns: 1fr;
    }

    .demo-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .demo-arrow {
        transform: rotate(90deg);
    }

    .arrow-label {
        transform: rotate(-90deg);
    }
}

@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .nav {
        gap: var(--spacing-md);
    }
    
    .stats-bar {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn-large {
        width: 100%;
        justify-content: center;
    }

    .demo-text {
        min-height: auto;
        font-size: 0.9375rem;
    }

    .demo-panel {
        padding: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .container,
    .container-wide {
        padding: 0 var(--spacing-md);
    }
    
    .tone-options {
        display: grid;
        grid-template-columns: 1fr 1fr;
    }
    
    .tone-btn {
        justify-content: center;
    }
}

/* ============================================
   Pricing Section
   ============================================ */
.pricing-hero {
    padding: var(--spacing-3xl) 0 var(--spacing-2xl);
    text-align: center;
    background: linear-gradient(135deg, var(--color-cream) 0%, var(--color-white) 100%);
}

.pricing-title {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.pricing-subtitle {
    font-size: 1.25rem;
    color: var(--color-gray-600);
}

.pricing-section {
    padding: var(--spacing-3xl) 0;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-3xl);
}

.pricing-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    position: relative;
    border: 2px solid var(--color-gray-100);
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-orange);
}

.pricing-card.popular {
    border-color: var(--color-orange);
    box-shadow: 0 0 0 4px rgba(255, 159, 110, 0.1), var(--shadow-xl);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--color-orange) 0%, var(--color-orange-dark) 100%);
    color: var(--color-white);
    padding: var(--spacing-xs) var(--spacing-lg);
    border-radius: var(--radius-xl);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pricing-header {
    text-align: center;
    padding-bottom: var(--spacing-xl);
    border-bottom: 2px solid var(--color-gray-100);
    margin-bottom: var(--spacing-xl);
}

.plan-name {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-gray-900);
}

.plan-price {
    margin-bottom: var(--spacing-sm);
}

.price-amount {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-orange);
    font-family: var(--font-serif);
}

.price-period {
    font-size: 1.125rem;
    color: var(--color-gray-600);
}

.plan-description {
    color: var(--color-gray-600);
    font-size: 0.9375rem;
}

.pricing-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.feature-item {
    display: flex;
    align-items: start;
    gap: var(--spacing-sm);
    font-size: 0.9375rem;
    color: var(--color-gray-700);
}

.feature-item.disabled {
    opacity: 0.4;
}

.feature-icon {
    flex-shrink: 0;
    margin-top: 2px;
    stroke: var(--color-orange);
}

.feature-item.disabled .feature-icon {
    stroke: var(--color-gray-400);
}

.btn-plan {
    width: 100%;
    justify-content: center;
}

.pricing-faq {
    margin-top: var(--spacing-3xl);
    padding-top: var(--spacing-3xl);
    border-top: 2px solid var(--color-gray-100);
}

.faq-title {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.faq-item {
    padding: var(--spacing-lg);
    background: var(--color-gray-50);
    border-radius: var(--radius-lg);
}

.faq-item h4 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-gray-900);
}

.faq-item p {
    color: var(--color-gray-600);
    line-height: 1.6;
    margin: 0;
}

/* ============================================
   Authentication Pages
   ============================================ */
.auth-section {
    min-height: calc(100vh - 200px);
    display: flex;
    align-items: center;
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--color-cream) 0%, var(--color-white) 100%);
}

.auth-container {
    width: 100%;
    max-width: 480px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.auth-box {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-xl);
}

.auth-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.auth-subtitle {
    text-align: center;
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-2xl);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-label {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--color-gray-700);
}

.form-input {
    padding: var(--spacing-md);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: var(--font-sans);
    transition: all var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-orange);
    box-shadow: 0 0 0 3px rgba(255, 159, 110, 0.1);
}

.form-hint {
    font-size: 0.75rem;
    color: var(--color-gray-500);
    margin: 0;
}

.form-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--color-gray-700);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.link-primary {
    color: var(--color-orange);
    text-decoration: none;
    font-weight: 600;
}

.link-primary:hover {
    text-decoration: underline;
}

.link-secondary {
    color: var(--color-gray-600);
    text-decoration: none;
    font-size: 0.875rem;
}

.link-secondary:hover {
    color: var(--color-orange);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

.auth-divider {
    text-align: center;
    position: relative;
    margin: var(--spacing-lg) 0;
}

.auth-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--color-gray-200);
}

.auth-divider span {
    position: relative;
    background: var(--color-white);
    padding: 0 var(--spacing-md);
    font-size: 0.875rem;
    color: var(--color-gray-500);
}

.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-top: var(--spacing-md);
    font-size: 0.875rem;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.nav-link.active {
    color: var(--color-orange);
    font-weight: 600;
}

/* ============================================
   Dashboard
   ============================================ */
.dashboard-section {
    padding: var(--spacing-2xl) 0;
    min-height: calc(100vh - 200px);
}

.dashboard-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.dashboard-header h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.dashboard-header p {
    font-size: 1.125rem;
    color: var(--color-gray-600);
}

.user-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.user-email {
    color: var(--color-gray-700);
    font-size: 0.875rem;
    font-weight: 500;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* ============================================
   Custom Scrollbar
   ============================================ */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--color-gray-100);
    border-radius: var(--radius-md);
}

::-webkit-scrollbar-thumb {
    background: var(--color-orange);
    border-radius: var(--radius-md);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-orange-dark);
}

/* ============================================
   Loading State
   ============================================ */
.loading {
    position: relative;
    pointer-events: none;
    opacity: 0.6;
}

/* .loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 24px;
    height: 24px;
    margin: -12px 0 0 -12px;
    border: 3px solid var(--color-gray-300);
    border-top-color: var(--color-orange);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
} */

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

/* ============================================
   Before/After Gallery Section
   ============================================ */
.before-after-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--color-gray-50) 0%, var(--color-white) 100%);
}

.gallery-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
}

.gallery-item {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.gallery-image-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.gallery-label {
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.label-before {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: var(--color-white);
}

.label-after {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: var(--color-white);
}

.gallery-image-wrapper {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
}

.gallery-image {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-md);
}

.gallery-arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-orange);
    padding: var(--spacing-lg);
}

.gallery-arrow svg {
    animation: pulse 2s ease-in-out infinite;
}

.gallery-arrow-text {
    font-weight: 700;
    font-size: 0.875rem;
    color: var(--color-orange);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.gallery-example-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--color-orange);
    color: var(--color-white);
    border-radius: 50%;
    font-size: 0.875rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

/* ============================================
   Comparator Section
   ============================================ */
.comparator-section {
    padding: var(--spacing-3xl) 0;
    background: var(--color-white);
}

.comparator-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--spacing-2xl);
}

.comparator-header {
    max-width: 700px;
}

.comparator-title {
    font-size: 2.25rem;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

.comparator-subtitle {
    font-size: 1.125rem;
    color: var(--color-gray-600);
    line-height: 1.7;
}

.comparator-image-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    max-width: 600px;
}

.comparator-image {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
}

.comparator-cta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.comparator-cta-text {
    color: var(--color-gray-500);
    font-size: 0.875rem;
}

/* Responsive for Before/After and Comparator */
@media (max-width: 1024px) {
    .gallery-item {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .gallery-arrow {
        transform: rotate(90deg);
        padding: var(--spacing-md);
    }

    .gallery-arrow-text {
        transform: rotate(-90deg);
    }
}

@media (max-width: 768px) {
    .comparator-title {
        font-size: 1.75rem;
    }

    .comparator-image-wrapper {
        padding: var(--spacing-md);
        max-width: 100%;
    }
}

/* ============================================
   Admin Dashboard Styles
   ============================================ */
.admin-section {
    padding: var(--spacing-2xl) 0;
    min-height: calc(100vh - 200px);
}

.admin-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    position: relative;
}

.admin-header h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--color-orange) 0%, var(--color-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.admin-header p {
    font-size: 1.125rem;
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-lg);
}

/* Admin Stats Grid */
.admin-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.admin-stat-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

.admin-stat-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-orange);
    box-shadow: var(--shadow-xl);
}

.admin-stat-icon {
    font-size: 3rem;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-cream) 0%, var(--color-white) 100%);
    border-radius: var(--radius-lg);
}

.admin-stat-content {
    display: flex;
    flex-direction: column;
}

.admin-stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-orange);
    font-family: var(--font-serif);
    line-height: 1.1;
}

.admin-stat-label {
    font-size: 0.9375rem;
    color: var(--color-gray-600);
    font-weight: 500;
}

/* Admin Table */
.admin-table-container {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.admin-table-header {
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--color-cream) 0%, var(--color-white) 100%);
    border-bottom: 2px solid var(--color-gray-100);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.admin-table-header h3 {
    font-size: 1.25rem;
    margin: 0;
}

.admin-table-actions {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.admin-table-actions .form-input {
    min-width: 250px;
}

.admin-table-wrapper {
    overflow-x: auto;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table th,
.admin-table td {
    padding: var(--spacing-md) var(--spacing-lg);
    text-align: left;
    border-bottom: 1px solid var(--color-gray-100);
}

.admin-table th {
    background: var(--color-gray-50);
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--color-gray-700);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.admin-table tbody tr {
    transition: background-color var(--transition-fast);
}

.admin-table tbody tr:hover {
    background-color: var(--color-cream);
}

.admin-table-loading,
.admin-table-empty {
    text-align: center;
    padding: var(--spacing-2xl) !important;
    color: var(--color-gray-500);
    font-style: italic;
}

/* User Table Elements */
.user-id {
    font-family: monospace;
    font-weight: 600;
    color: var(--color-gray-500);
}

.user-email {
    font-weight: 500;
    color: var(--color-gray-800);
}

.tokens-value {
    font-weight: 700;
    color: var(--color-orange);
    font-size: 1.0625rem;
}

.tokens-used {
    color: var(--color-gray-600);
}

/* Status Badges */
.status-badge {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.status-active {
    background: #d1fae5;
    color: #065f46;
}

.status-inactive {
    background: #fee2e2;
    color: #991b1b;
}

/* Plan Badges */
.plan-badge {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    background: var(--color-gray-200);
    color: var(--color-gray-700);
}

.plan-free {
    background: var(--color-gray-200);
    color: var(--color-gray-700);
}

.plan-starter {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    color: #1e40af;
}

.plan-pro {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    color: #92400e;
}

.plan-premium {
    background: linear-gradient(135deg, var(--color-orange-light) 0%, var(--color-orange) 100%);
    color: var(--color-white);
}

/* Admin Modal */
.admin-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    backdrop-filter: blur(4px);
}

.admin-modal-content {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 480px;
    margin: var(--spacing-lg);
    box-shadow: var(--shadow-xl);
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.admin-modal-header {
    padding: var(--spacing-xl);
    border-bottom: 2px solid var(--color-gray-100);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.admin-modal-header h3 {
    margin: 0;
    font-size: 1.25rem;
}

.admin-modal-close {
    background: none;
    border: none;
    font-size: 1.75rem;
    color: var(--color-gray-400);
    cursor: pointer;
    padding: 0;
    line-height: 1;
    transition: color var(--transition-fast);
}

.admin-modal-close:hover {
    color: var(--color-gray-800);
}

.admin-modal-body {
    padding: var(--spacing-xl);
}

.admin-modal-body p {
    margin-bottom: var(--spacing-lg);
    color: var(--color-gray-600);
}

.admin-modal-body strong {
    color: var(--color-gray-900);
}

.admin-quick-actions {
    margin-top: var(--spacing-lg);
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    align-items: center;
}

.admin-quick-label {
    font-size: 0.875rem;
    color: var(--color-gray-600);
    font-weight: 500;
}

.admin-modal-footer {
    padding: var(--spacing-xl);
    border-top: 2px solid var(--color-gray-100);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
}

/* Toast error style */
.toast.error {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
}

/* Responsive Admin */
@media (max-width: 1024px) {
    .admin-table-header {
        flex-direction: column;
        align-items: stretch;
    }

    .admin-table-actions {
        flex-direction: column;
    }

    .admin-table-actions .form-input {
        min-width: 100%;
    }
}

@media (max-width: 768px) {
    .admin-header h1 {
        font-size: 1.875rem;
    }

    .admin-stat-card {
        padding: var(--spacing-lg);
    }

    .admin-stat-icon {
        font-size: 2rem;
        width: 60px;
        height: 60px;
    }

    .admin-stat-value {
        font-size: 1.875rem;
    }

    .admin-table th,
    .admin-table td {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.875rem;
    }

    .admin-modal-content {
        margin: var(--spacing-md);
    }
}

/* ============================================
   AI Detector Zone - Dashboard
   ============================================ */
.ai-detector-zone {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-2xl);
    margin-top: var(--spacing-2xl);
    border: 1px solid var(--color-gray-200);
}

.detector-header {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-gray-200);
}

.detector-icon {
    font-size: 2.5rem;
    line-height: 1;
}

.detector-title-content h3 {
    font-size: 1.5rem;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-xs);
}

.detector-title-content p {
    color: var(--color-gray-500);
    font-size: 0.95rem;
}

.detector-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.detector-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-gray-50) 0%, var(--color-white) 100%);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.detector-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-orange-light) 0%, var(--color-cream) 100%);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.detector-link:hover {
    border-color: var(--color-orange);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.detector-link:hover::before {
    opacity: 0.15;
}

.detector-link-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-orange) 0%, var(--color-orange-dark) 100%);
    border-radius: var(--radius-md);
    color: var(--color-white);
    flex-shrink: 0;
    position: relative;
    z-index: 1;
}

.detector-link-content {
    display: flex;
    flex-direction: column;
    flex: 1;
    position: relative;
    z-index: 1;
}

.detector-link-name {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--color-gray-900);
    margin-bottom: 2px;
}

.detector-link-desc {
    font-size: 0.85rem;
    color: var(--color-gray-500);
}

.detector-link-arrow {
    color: var(--color-gray-400);
    transition: all var(--transition-normal);
    flex-shrink: 0;
    position: relative;
    z-index: 1;
}

.detector-link:hover .detector-link-arrow {
    color: var(--color-orange);
    transform: translate(3px, -3px);
}

.detector-tip {
    background: linear-gradient(135deg, var(--color-cream) 0%, var(--color-cream-dark) 100%);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    color: var(--color-gray-700);
    border-left: 4px solid var(--color-orange);
}

.detector-tip strong {
    color: var(--color-orange-dark);
}

/* Responsive AI Detector Zone */
@media (max-width: 1024px) {
    .detector-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .ai-detector-zone {
        padding: var(--spacing-xl);
    }

    .detector-links {
        grid-template-columns: 1fr;
    }

    .detector-header {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }

    .detector-link {
        padding: var(--spacing-md);
    }

    .detector-link-icon {
        width: 40px;
        height: 40px;
    }

    .detector-link-icon svg {
        width: 20px;
        height: 20px;
    }
}