/* ==========================================================================
   TravauxAPrevoir.fr - Feuille de styles principale
   ========================================================================== */

/* ==========================================================================
   1. Variables CSS
   ========================================================================== */
:root {
    /* Couleurs principales */
    --primary: #6366F1;
    --primary-dark: #4F46E5;
    --primary-light: #818CF8;
    --primary-bg: #EEF2FF;
    
    --success: #10B981;
    --success-dark: #059669;
    --success-bg: #ECFDF5;
    
    --accent: #F59E0B;
    --accent-dark: #D97706;
    --accent-bg: #FFFBEB;
    
    --danger: #EF4444;
    --danger-bg: #FEF2F2;
    
    /* Couleurs neutres */
    --white: #FFFFFF;
    --gray-50: #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-400: #94A3B8;
    --gray-500: #64748B;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1E293B;
    --gray-900: #0F172A;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #6366F1 0%, #8B5CF6 50%, #A855F7 100%);
    --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    
    /* Espacements */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    
    /* Rayons de bordure */
    --rounded-sm: 0.375rem;
    --rounded: 0.5rem;
    --rounded-md: 0.625rem;
    --rounded-lg: 0.75rem;
    --rounded-xl: 1rem;
    --rounded-2xl: 1.5rem;
    --rounded-full: 9999px;
    
    /* Ombres */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition: 200ms ease;
    --transition-slow: 300ms ease;
    
    /* Container */
    --container-max: 1200px;
    --container-padding: 1rem;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 1rem;
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--gray-50);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a:hover {
    color: var(--primary-dark);
}

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

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
}

h1, h2, h3, h4, h5, h6 {
    line-height: 1.3;
    font-weight: 700;
    color: var(--gray-800);
}

/* ==========================================================================
   3. Layout
   ========================================================================== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

.main-content {
    flex: 1;
    padding-top: var(--space-6);
    padding-bottom: var(--space-6);
}

/* ==========================================================================
   4. Header
   ========================================================================== */
.site-header {
    background-color: var(--white);
    border-bottom: 1px solid var(--gray-100);
    padding: var(--space-4) 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--gray-800);
    font-weight: 700;
    font-size: 1.125rem;
}

.logo:hover {
    color: var(--gray-800);
}

.logo-icon {
    width: 36px;
    height: 36px;
    flex-shrink: 0;
}

.main-nav {
    display: none;
    align-items: center;
    gap: var(--space-2);
}

.nav-link {
    color: var(--gray-600);
    font-weight: 500;
    font-size: 0.9375rem;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--rounded-full);
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: var(--primary);
    background-color: var(--primary-bg);
}

.nav-link.active {
    color: var(--primary);
    background-color: var(--primary-bg);
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: var(--space-2);
    background: transparent;
    border: none;
    cursor: pointer;
    border-radius: var(--rounded);
}

.mobile-menu-toggle:hover {
    background-color: var(--gray-100);
}

.mobile-menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--gray-700);
    border-radius: 1px;
    transition: all var(--transition);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.mobile-nav {
    display: none;
    flex-direction: column;
    padding: var(--space-4) var(--container-padding);
    background-color: var(--white);
    border-top: 1px solid var(--gray-100);
}

.mobile-nav.active {
    display: flex;
}

.mobile-nav .nav-link {
    padding: var(--space-3) var(--space-4);
    border-radius: var(--rounded-lg);
}

/* ==========================================================================
   5. Footer
   ========================================================================== */
.site-footer {
    background: linear-gradient(180deg, var(--gray-800) 0%, var(--gray-900) 100%);
    color: var(--white);
    padding: var(--space-12) 0 var(--space-8);
    margin-top: auto;
}

.footer-content {
    display: grid;
    gap: var(--space-8);
    margin-bottom: var(--space-8);
}

.footer-brand .logo {
    color: var(--white);
    margin-bottom: var(--space-3);
}

.footer-tagline {
    color: var(--gray-400);
    font-size: 0.875rem;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
}

.footer-section h4 {
    color: var(--white);
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-4);
}

.footer-section ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.footer-section a {
    color: var(--gray-400);
    font-size: 0.875rem;
    transition: color var(--transition-fast);
}

.footer-section a:hover {
    color: var(--white);
}

.footer-bottom {
    padding-top: var(--space-8);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.8125rem;
    color: var(--gray-400);
}

.footer-bottom .disclaimer {
    margin-top: var(--space-4);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ==========================================================================
   6. Boutons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 0.75rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 600;
    line-height: 1.4;
    border-radius: var(--rounded-lg);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: 0 4px 14px 0 rgba(99, 102, 241, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(99, 102, 241, 0.45);
    color: var(--white);
}

.btn-secondary {
    background-color: var(--white);
    color: var(--gray-700);
    border: 1px solid var(--gray-200);
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
}

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

.btn-white:hover {
    background-color: var(--gray-50);
    color: var(--primary-dark);
}

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

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

.btn-block {
    width: 100%;
}

/* ==========================================================================
   7. Formulaires
   ========================================================================== */
.form-input,
.form-select {
    width: 100%;
    padding: 0.875rem 1rem;
    font-size: 1rem;
    font-family: inherit;
    color: var(--gray-800);
    background-color: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--rounded-lg);
    transition: all var(--transition-fast);
    outline: none;
}

.form-input::placeholder {
    color: var(--gray-400);
}

.form-input:hover {
    border-color: var(--gray-300);
}

.form-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-bg);
}

.form-input-lg {
    padding: 1rem 1.25rem;
    font-size: 1.0625rem;
}

.form-input-sm {
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    max-width: 100px;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--space-1);
}

.form-hint {
    font-size: 0.8125rem;
    color: var(--gray-500);
}

.form-row {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

/* ==========================================================================
   8. Page d'accueil - Hero
   ========================================================================== */
.hero {
    text-align: center;
    padding: var(--space-12) 0 var(--space-8);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background-color: var(--primary-bg);
    color: var(--primary);
    border-radius: var(--rounded-full);
    font-size: 0.8125rem;
    font-weight: 600;
    margin-bottom: var(--space-6);
}

.hero-badge svg {
    width: 16px;
    height: 16px;
}

.hero-title {
    font-size: 1.875rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--space-6);
    letter-spacing: -0.02em;
    color: var(--gray-900);
}

.hero-title span {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.0625rem;
    color: var(--gray-500);
    max-width: 560px;
    margin: 0 auto var(--space-8);
    line-height: 1.7;
}

/* ==========================================================================
   9. Page d'accueil - Formulaire URL
   ========================================================================== */
.url-form {
    max-width: 680px;
    margin: 0 auto;
}

.url-input-wrapper {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    background-color: var(--white);
    padding: var(--space-4);
    border-radius: var(--rounded-2xl);
    box-shadow: var(--shadow-lg), 0 0 0 1px var(--gray-100);
}

.url-input-icon {
    display: none;
    align-items: center;
    justify-content: center;
    padding-left: var(--space-4);
    color: var(--gray-400);
}

.url-input-wrapper .form-input {
    flex: 1;
    border: 2px solid var(--gray-100);
    border-radius: var(--rounded-xl);
    background-color: var(--gray-50);
}

.url-input-wrapper .form-input:hover {
    border-color: var(--gray-200);
    background-color: var(--white);
}

.url-input-wrapper .form-input:focus {
    border-color: var(--primary);
    background-color: var(--white);
    box-shadow: 0 0 0 3px var(--primary-bg);
}

.url-input-wrapper .btn {
    width: 100%;
}

/* ==========================================================================
   10. Page d'accueil - Trust Badges
   ========================================================================== */
.trust-badges {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-3);
    margin-top: var(--space-8);
}

.trust-badge {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background-color: var(--white);
    border-radius: var(--rounded-full);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--gray-700);
    border: 1px solid var(--gray-100);
    box-shadow: var(--shadow-sm);
}

.trust-badge svg {
    width: 18px;
    height: 18px;
    color: var(--success);
}

/* ==========================================================================
   11. Page d'accueil - Portails
   ========================================================================== */
.portals-section {
    text-align: center;
    padding: var(--space-8) var(--space-4);
    border-top: 1px solid var(--gray-100);
    border-bottom: 1px solid var(--gray-100);
    background-color: var(--white);
    margin: var(--space-8) -1rem;
}

.portals-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--gray-400);
    margin-bottom: var(--space-4);
    font-weight: 600;
}

.portals-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-2);
}

.portal-badge {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background-color: var(--primary-bg);
    color: var(--primary);
    border-radius: var(--rounded-full);
    font-size: 0.8125rem;
    font-weight: 600;
}

.portal-badge.accent {
    background-color: var(--accent-bg);
    color: var(--accent-dark);
}

/* ==========================================================================
   12. Page d'accueil - Features
   ========================================================================== */
.features-section {
    padding: var(--space-12) 0;
}

.section-title {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-8);
    color: var(--gray-900);
}

.section-subtitle {
    text-align: center;
    color: var(--gray-500);
    margin-top: calc(-1 * var(--space-4));
    margin-bottom: var(--space-8);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
}

.feature-card {
    background-color: var(--white);
    border: 1px solid var(--gray-100);
    border-radius: var(--rounded-2xl);
    padding: var(--space-8);
    text-align: center;
    transition: all var(--transition);
}

.feature-card:hover {
    border-color: var(--gray-200);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background-color: var(--primary-bg);
    color: var(--primary);
    border-radius: var(--rounded-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-5);
}

.feature-icon--success {
    background-color: var(--success-bg);
    color: var(--success);
}

.feature-icon--accent {
    background-color: var(--accent-bg);
    color: var(--accent);
}

.feature-card h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--space-3);
    color: var(--gray-900);
}

.feature-card p {
    color: var(--gray-500);
    font-size: 0.9375rem;
    line-height: 1.6;
}

/* ==========================================================================
   13. Page d'accueil - How It Works
   ========================================================================== */
.how-it-works {
    padding: var(--space-12) var(--space-4);
    background-color: var(--white);
    margin: 0 -1rem;
}

.steps-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
}

.step-card {
    text-align: center;
    padding: var(--space-6);
}

.step-number {
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto var(--space-5);
    box-shadow: 0 4px 14px 0 rgba(99, 102, 241, 0.35);
}

.step-card h4 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--space-3);
    color: var(--gray-900);
}

.step-card p {
    color: var(--gray-500);
    font-size: 0.9375rem;
    line-height: 1.6;
}

/* ==========================================================================
   14. Page d'accueil - FAQ
   ========================================================================== */
.faq-section {
    padding: var(--space-12) 0;
}

.faq-grid {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.faq-item {
    background-color: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--rounded-xl);
    overflow: hidden;
    transition: all var(--transition);
}

.faq-item:hover {
    border-color: var(--gray-300);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding: var(--space-5) var(--space-6);
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-800);
    text-align: left;
    transition: all var(--transition-fast);
}

.faq-question:hover {
    color: var(--primary);
}

.faq-question svg {
    flex-shrink: 0;
    color: var(--primary);
    transition: transform var(--transition);
}

.faq-question[aria-expanded="true"] svg {
    transform: rotate(180deg);
}

.faq-answer {
    display: none;
    padding: 0 var(--space-6) var(--space-6);
    color: var(--gray-600);
    font-size: 0.9375rem;
    line-height: 1.7;
}

.faq-answer.active {
    display: block;
}

.faq-answer p {
    margin-bottom: var(--space-3);
}

.faq-answer p:last-child {
    margin-bottom: 0;
}

.faq-answer ul {
    list-style: disc;
    padding-left: var(--space-6);
    margin-top: var(--space-3);
}

.faq-answer li {
    margin-bottom: var(--space-2);
}

/* ==========================================================================
   15. Page d'accueil - CTA
   ========================================================================== */
.cta-section {
    padding: var(--space-8) 0 var(--space-12);
}

.cta-card {
    background: var(--gradient-primary);
    border-radius: var(--rounded-2xl);
    padding: var(--space-10) var(--space-8);
    text-align: center;
    box-shadow: 0 10px 40px -10px rgba(99, 102, 241, 0.5);
}

.cta-card h2 {
    font-size: 1.5rem;
    color: var(--white);
    margin-bottom: var(--space-3);
}

.cta-card p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
    margin-bottom: var(--space-6);
}

/* ==========================================================================
   16. Page Formulaire
   ========================================================================== */
.form-page {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
}

.property-sidebar {
    order: -1;
}

.property-card {
    background-color: var(--white);
    border-radius: var(--rounded-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-100);
}

.property-image-wrapper {
    position: relative;
}

.property-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background-color: var(--gray-100);
}

.property-info {
    padding: var(--space-6);
}

.property-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-2);
    line-height: 1.4;
    color: var(--gray-800);
}

.skeleton-text {
    color: transparent;
    background: linear-gradient(90deg, var(--gray-100) 25%, var(--gray-200) 50%, var(--gray-100) 75%);
    background-size: 200% 100%;
    animation: skeleton 1.5s infinite;
    border-radius: var(--rounded);
}

@keyframes skeleton {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.property-price {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: var(--space-4);
}

.property-details {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.property-detail {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.9375rem;
    color: var(--gray-600);
}

.property-detail svg {
    width: 16px;
    height: 16px;
    color: var(--gray-400);
}

.property-price-m2 {
    margin-top: var(--space-4);
    padding-top: var(--space-4);
    border-top: 1px solid var(--gray-100);
    font-size: 0.875rem;
    color: var(--gray-500);
}

/* DPE Badge */
.dpe-badge {
    display: inline-block;
    padding: var(--space-1) var(--space-2);
    border-radius: var(--rounded);
    font-size: 0.75rem;
    font-weight: 700;
    background-color: var(--gray-200);
    color: var(--gray-700);
}

.dpe-a { background-color: #22C55E; color: white; }
.dpe-b { background-color: #4ADE80; color: white; }
.dpe-c { background-color: #84CC16; color: white; }
.dpe-d { background-color: #EAB308; color: white; }
.dpe-e { background-color: #F97316; color: white; }
.dpe-f { background-color: #EF4444; color: white; }
.dpe-g { background-color: #DC2626; color: white; }

/* Form Content */
.form-content {
    flex: 1;
}

.page-header {
    margin-bottom: var(--space-8);
}

.page-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-2);
    color: var(--gray-900);
}

.page-subtitle {
    color: var(--gray-500);
    font-size: 1rem;
}

.form-section {
    margin-bottom: var(--space-10);
}

.form-section-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--space-2);
    color: var(--gray-800);
}

.form-section-subtitle {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-bottom: var(--space-5);
}

/* Options List */
.options-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.option-card {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    padding: var(--space-5);
    background-color: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--rounded-xl);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.option-card:hover {
    border-color: var(--primary-light);
}

.option-card:has(input:checked) {
    border-color: var(--primary);
    background-color: var(--primary-bg);
}

.option-card input[type="radio"],
.option-card input[type="checkbox"] {
    margin-top: 4px;
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
    flex-shrink: 0;
}

.option-content {
    flex: 1;
    min-width: 0;
}

.option-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.option-title {
    font-weight: 600;
    color: var(--gray-800);
}

.option-price {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--success);
    white-space: nowrap;
}

.option-description {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-top: var(--space-1);
}

.option-details {
    margin-top: var(--space-4);
    padding-top: var(--space-4);
    border-top: 1px solid var(--gray-200);
}

/* Checkbox Grid */
.checkbox-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
}

.checkbox-card {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4);
    background-color: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--rounded-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.checkbox-card:hover {
    border-color: var(--primary-light);
}

.checkbox-card:has(input:checked) {
    border-color: var(--primary);
    background-color: var(--primary-bg);
}

.checkbox-card input {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
    flex-shrink: 0;
}

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

/* Form Actions */
.form-actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-top: var(--space-8);
}

/* ==========================================================================
   17. Page Résultats
   ========================================================================== */
.result-page {
    max-width: 900px;
    margin: 0 auto;
}

.result-header {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

.result-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1) var(--space-3);
    background-color: var(--success-bg);
    color: var(--success-dark);
    border-radius: var(--rounded-full);
    font-size: 0.75rem;
    font-weight: 600;
    width: fit-content;
}

.result-actions-top {
    display: flex;
    gap: var(--space-2);
}

/* Main Result */
.main-result {
    background: var(--gradient-hero);
    color: var(--white);
    border-radius: var(--rounded-2xl);
    padding: var(--space-10) var(--space-6);
    text-align: center;
    margin-bottom: var(--space-8);
    box-shadow: 0 10px 40px -10px rgba(102, 126, 234, 0.5);
    position: relative;
    overflow: hidden;
}

.main-result::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.main-result > * {
    position: relative;
    z-index: 1;
}

.main-result-label {
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    opacity: 0.9;
    margin-bottom: var(--space-2);
    font-weight: 500;
}

.main-result-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-5);
    color: var(--white);
}

.main-result-price {
    font-size: 2.25rem;
    font-weight: 800;
    margin-bottom: var(--space-2);
    letter-spacing: -0.02em;
}

.main-result-m2 {
    font-size: 1rem;
    opacity: 0.9;
}

/* Stats Section */
.stats-section {
    margin-bottom: var(--space-8);
}

.stats-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
}

.stat-card {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    background-color: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--rounded-xl);
    padding: var(--space-5);
}

.stat-icon {
    width: 48px;
    height: 48px;
    background-color: var(--primary-bg);
    color: var(--primary);
    border-radius: var(--rounded-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.stat-icon--success {
    background-color: var(--success-bg);
    color: var(--success);
}

.stat-icon--accent {
    background-color: var(--accent-bg);
    color: var(--accent);
}

.stat-content {
    flex: 1;
}

.stat-label {
    font-size: 0.8125rem;
    color: var(--gray-500);
    margin-bottom: var(--space-1);
}

.stat-value {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--gray-800);
}

/* Scenarios Section */
.scenarios-section {
    margin-bottom: var(--space-8);
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
}

.scenario-card {
    background-color: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--rounded-xl);
    padding: var(--space-4);
    text-align: center;
    transition: all var(--transition-fast);
}

.scenario-card.active {
    border-color: var(--primary);
    background-color: var(--primary-bg);
}

.scenario-title {
    font-size: 0.8125rem;
    font-weight: 600;
    margin-bottom: var(--space-2);
    color: var(--gray-700);
}

.scenario-price {
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--space-1);
}

.scenario-range {
    font-size: 0.75rem;
    color: var(--gray-500);
}

.scenario-m2 {
    font-size: 0.75rem;
    color: var(--gray-400);
    margin-top: var(--space-1);
}

/* Details Section */
.details-section {
    margin-bottom: var(--space-8);
}

.details-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5) var(--space-6);
    background-color: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--rounded-xl);
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-800);
    transition: all var(--transition-fast);
}

.details-toggle:hover {
    border-color: var(--gray-300);
}

.details-toggle svg {
    transition: transform var(--transition);
}

.details-toggle.open {
    border-radius: var(--rounded-xl) var(--rounded-xl) 0 0;
    border-bottom-color: transparent;
}

.details-toggle.open svg {
    transform: rotate(180deg);
}

.details-content {
    display: none;
    background-color: var(--white);
    border: 2px solid var(--gray-200);
    border-top: none;
    border-radius: 0 0 var(--rounded-xl) var(--rounded-xl);
    padding: var(--space-6);
}

.details-content.open {
    display: block;
}

.details-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--gray-100);
}

.details-item:last-child {
    border-bottom: none;
}

.details-name {
    color: var(--gray-700);
}

.details-price {
    font-weight: 600;
    color: var(--primary);
}

/* Total Section */
.total-section {
    margin-bottom: var(--space-8);
}

.total-card {
    background-color: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--rounded-2xl);
    padding: var(--space-8);
}

.total-title {
    font-size: 1.125rem;
    text-align: center;
    margin-bottom: var(--space-8);
    color: var(--gray-800);
}

.total-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-2) 0;
}

.total-label {
    color: var(--gray-600);
}

.total-value {
    font-weight: 600;
    color: var(--gray-800);
}

.total-row--highlight {
    padding-top: var(--space-5);
    margin-top: var(--space-4);
    border-top: 2px dashed var(--gray-200);
    font-size: 1.25rem;
}

.total-row--highlight .total-label {
    font-weight: 700;
    color: var(--gray-800);
}

.total-row--highlight .total-value {
    font-weight: 800;
    color: var(--primary);
}

.total-row--sub {
    color: var(--gray-500);
    font-size: 0.875rem;
}

/* Tips Section */
.tips-section {
    margin-bottom: var(--space-8);
}

.tips-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
}

.tip-card {
    background-color: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--rounded-xl);
    padding: var(--space-6);
}

.tip-icon {
    width: 48px;
    height: 48px;
    background-color: var(--primary-bg);
    color: var(--primary);
    border-radius: var(--rounded-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-4);
}

.tip-card h4 {
    font-size: 1rem;
    margin-bottom: var(--space-2);
    color: var(--gray-800);
}

.tip-card p {
    font-size: 0.875rem;
    color: var(--gray-500);
    line-height: 1.6;
}

/* Result Actions */
.result-actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-bottom: var(--space-8);
}

/* Promo Section */
.promo-section {
    margin-bottom: var(--space-8);
}

.promo-card {
    background: linear-gradient(135deg, var(--gray-800) 0%, var(--gray-900) 100%);
    border-radius: var(--rounded-2xl);
    padding: var(--space-8);
    color: var(--white);
}

.promo-badge {
    display: inline-block;
    background-color: rgba(99, 102, 241, 0.2);
    color: var(--primary-light);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--rounded-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: var(--space-4);
}

.promo-content h3 {
    color: var(--white);
    font-size: 1.25rem;
    margin-bottom: var(--space-2);
}

.promo-content p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9375rem;
    margin-bottom: var(--space-4);
}

.promo-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-2);
    margin-bottom: var(--space-6);
}

.promo-features li {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.9);
}

.btn-promo {
    background: var(--gradient-primary);
    color: var(--white);
    width: 100%;
}

.btn-promo:hover {
    color: var(--white);
}

/* Disclaimer */
.disclaimer {
    padding: var(--space-5);
    background-color: var(--gray-100);
    border-radius: var(--rounded-xl);
    font-size: 0.8125rem;
    color: var(--gray-600);
    line-height: 1.6;
}

/* ==========================================================================
   18. Loader
   ========================================================================== */
.loader-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(248, 250, 252, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
}

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

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

.loader-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--primary-bg);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--space-5);
}

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

.loader-text {
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: var(--space-2);
}

.loader-subtext {
    font-size: 0.875rem;
    color: var(--gray-500);
}

/* ==========================================================================
   19. Alerts
   ========================================================================== */
.alert {
    padding: var(--space-4) var(--space-5);
    border-radius: var(--rounded-xl);
    margin-bottom: var(--space-5);
}

.alert-info {
    background-color: var(--primary-bg);
    color: var(--primary-dark);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.alert-error {
    background-color: var(--danger-bg);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* ==========================================================================
   20. Modals
   ========================================================================== */
.modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
}

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

.modal-overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(15, 23, 42, 0.5);
    cursor: pointer;
}

.modal-content {
    position: relative;
    background-color: var(--white);
    border-radius: var(--rounded-2xl);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    padding: var(--space-8);
    box-shadow: var(--shadow-xl);
}

.modal-close {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    width: 36px;
    height: 36px;
    background-color: var(--gray-100);
    border: none;
    border-radius: 50%;
    font-size: 1.25rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-600);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background-color: var(--gray-200);
    color: var(--gray-800);
}

.modal-content h2 {
    font-size: 1.5rem;
    margin-bottom: var(--space-6);
    padding-right: var(--space-10);
}

.modal-body h3 {
    font-size: 1.125rem;
    margin: var(--space-6) 0 var(--space-3);
    color: var(--gray-800);
}

.modal-body h3:first-child {
    margin-top: 0;
}

.modal-body p {
    color: var(--gray-600);
    margin-bottom: var(--space-4);
    line-height: 1.7;
}

.modal-body ul {
    list-style: disc;
    padding-left: var(--space-6);
    color: var(--gray-600);
}

.modal-body li {
    margin-bottom: var(--space-2);
}

/* ==========================================================================
   21. Utilitaires
   ========================================================================== */
.mt-sm { margin-top: var(--space-2); }
.mt-md { margin-top: var(--space-4); }
.mt-lg { margin-top: var(--space-6); }
.mt-xl { margin-top: var(--space-8); }

.mb-sm { margin-bottom: var(--space-2); }
.mb-md { margin-bottom: var(--space-4); }
.mb-lg { margin-bottom: var(--space-6); }
.mb-xl { margin-bottom: var(--space-8); }

.text-center { text-align: center; }
.text-light { color: var(--gray-500); }
.text-muted { color: var(--gray-400); }

/* ==========================================================================
   22. Responsive - Tablet
   ========================================================================== */
@media (min-width: 640px) {
    :root {
        --container-padding: 1.5rem;
    }
    
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .steps-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .checkbox-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .scenarios-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .tips-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .result-actions {
        flex-direction: row;
        justify-content: center;
    }
}

/* ==========================================================================
   23. Responsive - Desktop
   ========================================================================== */
@media (min-width: 768px) {
    :root {
        --container-padding: 2rem;
    }
    
    .main-nav {
        display: flex;
    }
    
    .mobile-menu-toggle,
    .mobile-nav {
        display: none !important;
    }
    
    .hero {
        padding: var(--space-16) 0 var(--space-12);
    }
    
    .hero-title {
        font-size: 2.75rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .url-input-wrapper {
        flex-direction: row;
        align-items: center;
        padding: var(--space-2);
        padding-left: var(--space-4);
    }
    
    .url-input-icon {
        display: flex;
    }
    
    .url-input-wrapper .form-input {
        border: none;
        background-color: transparent;
    }
    
    .url-input-wrapper .form-input:hover,
    .url-input-wrapper .form-input:focus {
        background-color: transparent;
        border: none;
        box-shadow: none;
    }
    
    .url-input-wrapper .btn {
        width: auto;
        flex-shrink: 0;
    }
    
    .portals-section {
        margin-left: -2rem;
        margin-right: -2rem;
        padding-left: 2rem;
        padding-right: 2rem;
    }
    
    .how-it-works {
        margin-left: -2rem;
        margin-right: -2rem;
        padding-left: 2rem;
        padding-right: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr 2fr;
    }
    
    .footer-links {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .form-page {
        display: grid;
        grid-template-columns: 320px 1fr;
        gap: var(--space-10);
    }
    
    .property-sidebar {
        order: 0;
    }
    
    .property-card {
        position: sticky;
        top: calc(72px + var(--space-6));
    }
    
    .form-actions {
        flex-direction: row;
    }
    
    .form-actions .btn:first-child {
        flex: 1;
    }
    
    .result-header {
        flex-direction: row;
        justify-content: space-between;
        align-items: flex-start;
    }
    
    .main-result-price {
        font-size: 3rem;
    }
    
    .scenarios-grid {
        grid-template-columns: repeat(6, 1fr);
    }
    
    .scenario-card {
        padding: var(--space-3);
    }
    
    .scenario-title {
        font-size: 0.75rem;
    }
    
    .scenario-price {
        font-size: 0.875rem;
    }
}

/* ==========================================================================
   24. Responsive - Large Desktop
   ========================================================================== */
@media (min-width: 1024px) {
    .hero-title {
        font-size: 3.25rem;
    }
    
    .checkbox-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .form-page {
        grid-template-columns: 360px 1fr;
    }
}

/* ==========================================================================
   25. Print Styles
   ========================================================================== */
@media print {
    .site-header,
    .site-footer,
    .result-actions,
    .promo-section,
    .result-actions-top,
    .btn {
        display: none !important;
    }
    
    .main-content {
        padding: 0;
    }
    
    .main-result {
        background: white !important;
        color: black !important;
        border: 2px solid black;
        box-shadow: none;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
    
    .main-result::before {
        display: none;
    }
    
    .details-content {
        display: block !important;
    }
    
    .card, .scenario-card, .total-card, .stat-card {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}

/* ==========================================================================
   26. FAQ Section
   ========================================================================== */
.faq-section {
    padding: var(--space-3xl) 0;
}

.faq-grid {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--color-bg-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg) var(--space-xl);
    background: transparent;
    border: none;
    cursor: pointer;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    text-align: left;
    color: var(--color-text);
    transition: all var(--transition-fast);
}

.faq-question:hover {
    background: var(--color-bg);
}

.faq-question svg {
    flex-shrink: 0;
    color: var(--color-primary);
    transition: transform var(--transition-fast);
}

.faq-question[aria-expanded="true"] svg {
    transform: rotate(180deg);
}

.faq-answer {
    display: none;
    padding: 0 var(--space-xl) var(--space-lg);
}

.faq-answer.open {
    display: block;
}

.faq-answer p {
    color: var(--color-text-light);
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-bottom: var(--space-md);
}

.faq-answer p:last-child {
    margin-bottom: 0;
}

.faq-answer ul {
    list-style: disc;
    padding-left: var(--space-xl);
    margin-bottom: var(--space-md);
}

.faq-answer li {
    color: var(--color-text-light);
    font-size: 0.9375rem;
    margin-bottom: var(--space-xs);
}

/* ==========================================================================
   27. Pricing Section (Homepage)
   ========================================================================== */
.pricing-section {
    padding: var(--space-3xl) 0;
    text-align: center;
}

.section-subtitle {
    color: var(--color-text-light);
    font-size: 1rem;
    margin-top: calc(-1 * var(--space-md));
    margin-bottom: var(--space-2xl);
}

.pricing-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.pricing-card {
    background: var(--color-bg-white);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    text-align: center;
    position: relative;
    transition: all var(--transition-base);
}

.pricing-card:hover {
    border-color: var(--color-primary-light);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.pricing-card--popular {
    border-color: var(--color-primary);
    background: linear-gradient(180deg, var(--color-primary-bg) 0%, var(--color-bg-white) 100%);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.pricing-header h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--color-text);
}

.pricing-price {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: var(--space-lg);
}

.pricing-price span {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-light);
}

.pricing-features {
    list-style: none;
    text-align: left;
}

.pricing-features li {
    padding: var(--space-sm) 0;
    font-size: 0.875rem;
    color: var(--color-text-light);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.pricing-features li::before {
    content: '✓';
    color: var(--color-success);
    font-weight: 600;
}

.pricing-note {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.pricing-note a {
    color: var(--color-primary);
}

@media (min-width: 768px) {
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .pricing-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .pricing-card {
        padding: var(--space-lg);
    }
}

/* ==========================================================================
   28. Blog Section (Homepage Preview)
   ========================================================================== */
.blog-section,
.guides-section {
    padding: var(--space-3xl) 0;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-xl);
}

.section-link {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.blog-preview-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
}

.blog-preview-card {
    background: var(--color-bg-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.blog-preview-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.blog-preview-card a {
    display: block;
    color: inherit;
}

.blog-preview-image {
    height: 140px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    display: flex;
    align-items: flex-end;
    padding: var(--space-md);
    position: relative;
}

.blog-preview-image--cuisine {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
}

.blog-preview-image--negociation {
    background: linear-gradient(135deg, var(--color-success) 0%, var(--color-success-dark) 100%);
}

.blog-preview-category {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
}

.blog-preview-content {
    padding: var(--space-lg);
}

.blog-preview-content h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
    line-height: 1.4;
}

.blog-preview-content p {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-bottom: var(--space-md);
    line-height: 1.5;
}

.blog-preview-meta {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

@media (min-width: 768px) {
    .blog-preview-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ==========================================================================
   29. Guides Preview Section
   ========================================================================== */
.guides-preview-grid {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.guide-preview-card {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    padding: var(--space-lg);
    background: var(--color-bg-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    color: inherit;
    transition: all var(--transition-base);
}

.guide-preview-card:hover {
    border-color: var(--color-primary-light);
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
}

.guide-preview-icon {
    width: 56px;
    height: 56px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-bg);
    color: var(--color-primary);
    border-radius: var(--radius-lg);
}

.guide-preview-icon--success {
    background: var(--color-success-bg);
    color: var(--color-success);
}

.guide-preview-icon--accent {
    background: var(--color-accent-bg);
    color: var(--color-accent);
}

.guide-preview-content {
    flex: 1;
}

.guide-preview-content h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.guide-preview-content p {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin: 0;
}

.guide-preview-arrow {
    font-size: 1.25rem;
    color: var(--color-primary);
    opacity: 0;
    transition: all var(--transition-fast);
}

.guide-preview-card:hover .guide-preview-arrow {
    opacity: 1;
    transform: translateX(4px);
}

/* ==========================================================================
   30. SEO Content Section
   ========================================================================== */
.seo-content {
    padding: var(--space-3xl) 0;
    background: var(--color-bg);
    border-radius: var(--radius-2xl);
    margin: var(--space-2xl) 0;
}

.seo-content h2 {
    font-size: 1.5rem;
    margin-bottom: var(--space-lg);
    text-align: center;
}

.seo-text {
    max-width: 800px;
    margin: 0 auto;
}

.seo-text p {
    color: var(--color-text-light);
    font-size: 0.9375rem;
    line-height: 1.8;
    margin-bottom: var(--space-lg);
}

.seo-text h3 {
    font-size: 1.125rem;
    margin-top: var(--space-xl);
    margin-bottom: var(--space-md);
    color: var(--color-text);
}

.seo-text ul {
    list-style: disc;
    padding-left: var(--space-xl);
    margin-bottom: var(--space-lg);
}

.seo-text li {
    color: var(--color-text-light);
    font-size: 0.9375rem;
    margin-bottom: var(--space-sm);
    line-height: 1.6;
}

/* ==========================================================================
   31. CTA Section
   ========================================================================== */
.cta-section {
    padding: var(--space-2xl) 0;
}

.cta-section .cta-card {
    background: var(--gradient-primary);
    border-radius: var(--radius-2xl);
    padding: var(--space-2xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-lg);
}

.cta-section .cta-content h2 {
    color: white;
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
}

.cta-section .cta-content p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
}

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

.btn-white:hover {
    background: var(--color-bg);
    color: var(--color-primary-dark);
}

@media (min-width: 768px) {
    .cta-section .cta-card {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
        padding: var(--space-3xl);
    }
}

/* ==========================================================================
   32. Blog Pages Styles
   ========================================================================== */
.page-hero {
    text-align: center;
    padding: var(--space-3xl) 0;
}

.page-hero-content {
    max-width: 700px;
    margin: 0 auto;
}

.page-hero h1 {
    font-size: 2rem;
    margin-bottom: var(--space-md);
}

.page-hero p {
    font-size: 1.125rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* Blog List */
.blog-list {
    padding-bottom: var(--space-3xl);
}

.blog-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
}

.blog-card {
    background: var(--color-bg-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.blog-card-link {
    display: block;
    color: inherit;
}

.blog-card-image {
    height: 180px;
    background: linear-gradient(135deg, var(--color-border-light) 0%, var(--color-border) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.blog-card-placeholder {
    color: var(--color-text-muted);
    opacity: 0.5;
}

.blog-card-content {
    padding: var(--space-xl);
}

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.blog-category {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-primary);
    background: var(--color-primary-bg);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
}

.blog-date {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.blog-card-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
    line-height: 1.4;
}

.blog-card-excerpt {
    font-size: 0.875rem;
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: var(--space-lg);
}

.blog-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.reading-time {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.read-more {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-primary);
}

@media (min-width: 768px) {
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .page-hero h1 {
        font-size: 2.5rem;
    }
}

@media (min-width: 1024px) {
    .blog-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* CTA Estimation */
.cta-estimation {
    padding: var(--space-2xl) 0;
}

.cta-estimation .cta-card {
    background: var(--gradient-primary);
    border-radius: var(--radius-2xl);
    padding: var(--space-2xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-lg);
}

.cta-estimation .cta-content h2 {
    color: white;
    font-size: 1.25rem;
    margin-bottom: var(--space-sm);
}

.cta-estimation .cta-content p {
    color: rgba(255, 255, 255, 0.9);
}

@media (min-width: 768px) {
    .cta-estimation .cta-card {
        flex-direction: row;
        text-align: left;
    }
    
    .cta-estimation .cta-content {
        flex: 1;
    }
}

/* ==========================================================================
   33. Guides Pages Styles
   ========================================================================== */
.guides-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
    padding-bottom: var(--space-3xl);
}

.guide-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    padding: var(--space-xl);
    background: var(--color-bg-white);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-2xl);
    position: relative;
    transition: all var(--transition-base);
}

.guide-card:hover {
    border-color: var(--color-primary-light);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.guide-card-primary { border-left: 4px solid var(--color-primary); }
.guide-card-success { border-left: 4px solid var(--color-success); }
.guide-card-accent { border-left: 4px solid var(--color-accent); }

.guide-card-icon {
    width: 72px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-bg);
    color: var(--color-primary);
    border-radius: var(--radius-xl);
}

.guide-card-success .guide-card-icon {
    background: var(--color-success-bg);
    color: var(--color-success);
}

.guide-card-accent .guide-card-icon {
    background: var(--color-accent-bg);
    color: var(--color-accent);
}

.guide-number {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-sm);
}

.guide-card-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.guide-card-description {
    font-size: 0.9375rem;
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: var(--space-md);
}

.guide-card-meta {
    display: flex;
    gap: var(--space-lg);
}

.guide-chapters,
.guide-time {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.guide-card-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 600;
    color: var(--color-primary);
    margin-top: auto;
}

@media (min-width: 768px) {
    .guide-card {
        flex-direction: row;
        align-items: flex-start;
    }
    
    .guide-card-content {
        flex: 1;
    }
    
    .guide-card-link {
        align-self: center;
    }
}

/* Guides Features */
.guides-features {
    padding: var(--space-2xl) 0;
    text-align: center;
}

.guides-features h2 {
    margin-bottom: var(--space-2xl);
}

.guides-features .features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
}

.guides-features .feature-item {
    text-align: center;
}

.guides-features .feature-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto var(--space-md);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
}

.guides-features .feature-icon.primary {
    background: var(--color-primary-bg);
    color: var(--color-primary);
}

.guides-features .feature-icon.success {
    background: var(--color-success-bg);
    color: var(--color-success);
}

.guides-features .feature-icon.accent {
    background: var(--color-accent-bg);
    color: var(--color-accent);
}

.guides-features h3 {
    font-size: 1rem;
    margin-bottom: var(--space-sm);
}

.guides-features p {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

@media (min-width: 768px) {
    .guides-features .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ==========================================================================
   34. Article Pages Styles
   ========================================================================== */
.container-article {
    max-width: 800px;
}

.article-header {
    padding: var(--space-2xl) 0;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--space-2xl);
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.article-category {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-primary);
    background: var(--color-primary-bg);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
}

.article-meta time,
.article-reading-time {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.article-header h1 {
    font-size: 1.75rem;
    line-height: 1.3;
    margin-bottom: var(--space-lg);
}

.article-intro {
    font-size: 1.125rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

@media (min-width: 768px) {
    .article-header h1 {
        font-size: 2.25rem;
    }
}

/* Table of Contents */
.table-of-contents {
    background: var(--color-bg);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    margin-bottom: var(--space-2xl);
}

.table-of-contents h2 {
    font-size: 1rem;
    margin-bottom: var(--space-md);
}

.table-of-contents ul,
.table-of-contents ol {
    list-style: none;
    counter-reset: toc;
}

.table-of-contents li {
    counter-increment: toc;
    margin-bottom: var(--space-sm);
}

.table-of-contents a {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.9375rem;
    color: var(--color-text-light);
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--color-border-light);
}

.table-of-contents a:hover {
    color: var(--color-primary);
}

.table-of-contents ol a::before {
    content: counter(toc) ".";
    font-weight: 600;
    color: var(--color-primary);
    min-width: 24px;
}

/* Article Content */
.article-content {
    padding-bottom: var(--space-2xl);
}

.article-content h2 {
    font-size: 1.5rem;
    margin-top: var(--space-3xl);
    margin-bottom: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border-light);
}

.article-content h2:first-of-type {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.article-content h3 {
    font-size: 1.125rem;
    margin-top: var(--space-xl);
    margin-bottom: var(--space-md);
}

.article-content p {
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: var(--space-lg);
    color: var(--color-text);
}

.article-content ul,
.article-content ol {
    margin-bottom: var(--space-lg);
    padding-left: var(--space-xl);
}

.article-content ul {
    list-style: disc;
}

.article-content ol {
    list-style: decimal;
}

.article-content li {
    margin-bottom: var(--space-sm);
    line-height: 1.7;
}

/* Price Table */
.price-table-wrapper {
    overflow-x: auto;
    margin: var(--space-xl) 0;
}

.price-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.price-table th,
.price-table td {
    padding: var(--space-md);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.price-table th {
    background: var(--color-bg);
    font-weight: 600;
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--color-text-light);
}

.price-table td {
    color: var(--color-text);
}

.price-table tr:hover td {
    background: var(--color-bg);
}

/* Info & Example Boxes */
.info-box,
.tip-box,
.warning-box,
.example-box {
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    margin: var(--space-xl) 0;
}

.info-box {
    background: var(--color-primary-bg);
    border-left: 4px solid var(--color-primary);
}

.tip-box {
    background: var(--color-success-bg);
    border-left: 4px solid var(--color-success);
}

.warning-box {
    background: var(--color-accent-bg);
    border-left: 4px solid var(--color-accent);
}

.example-box {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
}

.example-box.accent {
    background: var(--color-primary-bg);
    border-color: var(--color-primary-light);
}

.info-box h4,
.tip-box h4,
.warning-box h4,
.example-box h4 {
    font-size: 0.9375rem;
    margin-bottom: var(--space-sm);
}

.example-box ul {
    list-style: none;
    padding-left: 0;
    margin-bottom: var(--space-md);
}

.example-box li {
    padding: var(--space-xs) 0;
}

.example-box p:last-child {
    margin-bottom: 0;
    font-weight: 600;
}

.difference {
    color: var(--color-success);
    font-weight: 600;
}

/* Article CTA */
.article-cta {
    background: var(--gradient-primary);
    color: white;
    padding: var(--space-2xl);
    border-radius: var(--radius-2xl);
    text-align: center;
    margin-top: var(--space-3xl);
}

.article-cta h2 {
    color: white;
    font-size: 1.25rem;
    margin: 0 0 var(--space-sm);
    padding: 0;
    border: none;
}

.article-cta p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--space-lg);
}

.article-cta .btn {
    background: white;
    color: var(--color-primary);
}

/* Article Footer */
.article-footer {
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-border);
    margin-top: var(--space-2xl);
}

.article-update,
.article-disclaimer {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

/* ==========================================================================
   35. Guide Article Styles
   ========================================================================== */
.guide-chapter {
    margin-bottom: var(--space-3xl);
}

.chapter-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--gradient-primary);
    color: white;
    font-size: 0.875rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    margin-right: var(--space-sm);
}

.guide-chapter h2 {
    display: flex;
    align-items: center;
}

.timeline-list {
    list-style: none;
    padding-left: 0;
    border-left: 2px solid var(--color-border);
    margin-left: var(--space-md);
}

.timeline-list li {
    position: relative;
    padding-left: var(--space-xl);
    padding-bottom: var(--space-xl);
}

.timeline-list li::before {
    content: '';
    position: absolute;
    left: -7px;
    top: 0;
    width: 12px;
    height: 12px;
    background: var(--color-primary);
    border-radius: 50%;
}

.timeline-list li strong {
    display: block;
    margin-bottom: var(--space-xs);
}

.timeline-list li p {
    margin: 0;
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.formula-box {
    background: var(--color-bg);
    border: 2px dashed var(--color-border);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    margin: var(--space-xl) 0;
}

.formula-box p {
    margin: 0;
    font-family: monospace;
    font-size: 0.9375rem;
}

.guide-summary {
    background: var(--color-primary-bg);
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    margin: var(--space-2xl) 0;
}

.guide-summary h2 {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.guide-summary ol {
    counter-reset: summary;
    list-style: none;
    padding-left: 0;
}

.guide-summary li {
    counter-increment: summary;
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-sm) 0;
}

.guide-summary li::before {
    content: counter(summary);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: var(--color-primary);
    color: white;
    font-size: 0.8125rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

/* ==========================================================================
   36. Mobile Menu
   ========================================================================== */
.mobile-menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.mobile-menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.mobile-menu-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-nav {
    display: none;
    background: var(--color-bg-white);
    border-top: 1px solid var(--color-border-light);
    padding: var(--space-md) var(--container-padding);
}

.mobile-nav.open {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.mobile-nav .nav-link {
    padding: var(--space-md);
    border-radius: var(--radius-md);
}

@media (min-width: 768px) {
    .mobile-menu-toggle {
        display: none;
    }
    
    .main-nav {
        display: flex;
    }
}

@media (max-width: 767px) {
    .main-nav {
        display: none;
    }
}