/* =====================================
   CHAT ADOS MODERN - STYLES CSS
   Design moderne pour ados 2024
   ===================================== */

/* Variables CSS modernes */
:root {
    /* Couleurs principales */
    --primary: #4f46e5;
    --primary-dark: #3730a3;
    --secondary: #764ba2;
    --accent: #f093fb;
    --success: #059669;
    --warning: #d97706;
    --danger: #dc2626;
    
    /* Couleurs neutres */
    --white: #ffffff;
    --light-gray: #f8fafc;
    --gray: #475569;
    --dark-gray: #1e293b;
    --black: #0f172a;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-success: linear-gradient(135deg, #4ecdc4 0%, #44a08d 100%);
    
    /* 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);
    
    /* Animations */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-12: 3rem;
    --space-16: 4rem;
    
    /* Border radius */
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
}

/* Reset et base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--dark-gray);
    background: var(--white);
    overflow-x: hidden;
    min-width: 320px; /* Largeur minimale pour éviter les problèmes sur très petits écrans */
}

/* Utilitaires */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* Utilitaire pour l'espacement navbar */
.navbar-offset {
    padding-top: 80px;
}

/* Screen reader only - masque visuellement mais accessible aux lecteurs d'écran */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
}

/* =====================================
   NAVIGATION MODERNE
   ===================================== */
.modern-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    z-index: 1000;
    padding: var(--space-4) 0;
    transition: var(--transition);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.brand-logo {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
}

.brand-text {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
}

.brand-text .accent {
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    gap: var(--space-2);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    text-decoration: none;
    color: var(--gray);
    font-weight: 500;
    border-radius: var(--radius-full);
    transition: var(--transition);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
    background: rgba(102, 126, 234, 0.1);
}

.nav-link i {
    font-size: 1.1rem;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: var(--space-1);
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
}

.nav-toggle span {
    width: 24px;
    height: 3px;
    background: var(--primary);
    border-radius: var(--radius-full);
    transition: var(--transition);
}

/* =====================================
   HERO SECTION
   ===================================== */
.hero-section {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    padding: 144px var(--space-4) var(--space-16); /* Fallback */
    padding: calc(80px + var(--space-16)) var(--space-4) var(--space-16);
    background: var(--light-gray);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    z-index: -1;
}

.floating-shapes {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: var(--radius-full);
    animation: float 6s ease-in-out infinite;
    opacity: 0.1;
}

.shape-1 {
    width: 100px;
    height: 100px;
    background: var(--primary);
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 150px;
    height: 150px;
    background: var(--secondary);
    top: 50%;
    right: 15%;
    animation-delay: 2s;
}

.shape-3 {
    width: 80px;
    height: 80px;
    background: var(--accent);
    bottom: 30%;
    left: 15%;
    animation-delay: 4s;
}

.shape-4 {
    width: 120px;
    height: 120px;
    background: var(--success);
    top: 10%;
    right: 30%;
    animation-delay: 1s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(10deg);
    }
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: var(--space-16);
    align-items: center;
    max-width: 1200px;
    width: 100%;
}

.hero-text {
    text-align: left;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--space-6);
    color: var(--black);
}

.hero-title .emoji {
    display: inline-block;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray);
    margin-bottom: var(--space-8);
    line-height: 1.6;
}

.hero-features {
    display: flex;
    gap: var(--space-6);
    flex-wrap: wrap;
}

.feature {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    background: var(--white);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow);
    font-weight: 500;
    color: var(--dark-gray);
}

.feature i {
    color: var(--primary);
    font-size: 1.1rem;
}

/* =====================================
   FORMULAIRE DE CHAT
   ===================================== */
.chat-form-container {
    background: var(--white);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 400px;
}

.form-header {
    text-align: center;
    margin-bottom: var(--space-8);
}

.form-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: var(--space-2);
}

.form-header p {
    color: var(--gray);
    font-size: 0.95rem;
}

.chat-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

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

.form-group {
    position: relative;
}

.input-group {
    position: relative;
}

.input-icon {
    position: absolute;
    left: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray);
    font-size: 1.1rem;
    z-index: 2;
}

.input-group input,
.input-group select {
    width: 100%;
    padding: var(--space-4) var(--space-4) var(--space-4) var(--space-12);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    background: var(--light-gray);
    font-size: 1rem;
    font-weight: 500;
    color: var(--dark-gray);
    transition: var(--transition);
    outline: none;
}

/* Amélioration du contraste des placeholders */
.input-group input::placeholder,
.input-group select::placeholder {
    color: #64748b;
    opacity: 1;
}

.input-group input:focus,
.input-group select:focus {
    background: var(--white);
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.input-line {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition);
}

.input-group input:focus + .input-line {
    transform: scaleX(1);
}

.error-message {
    color: var(--danger);
    font-size: 0.875rem;
    margin-top: var(--space-2);
    opacity: 0;
    transition: var(--transition);
}

.error-message.show {
    opacity: 1;
}

/* Sélection de genre */
.gender-selection {
    margin: var(--space-4) 0;
}

.gender-title {
    font-weight: 600;
    margin-bottom: var(--space-3);
    color: var(--dark-gray);
}

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

.gender-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-4);
    border: 2px solid var(--light-gray);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    background: var(--white);
}

.gender-option:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.gender-option input {
    display: none;
}

.gender-option input:checked + .gender-icon + span {
    color: var(--primary);
    font-weight: 600;
}

.gender-option:has(input:checked) {
    border-color: var(--primary);
    background: rgba(102, 126, 234, 0.05);
}

.gender-icon {
    font-size: 1.5rem;
}

/* Checkbox personnalisé */
.checkbox-container {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    cursor: pointer;
    user-select: none;
}

.checkbox-container input {
    display: none;
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid var(--gray);
    border-radius: var(--radius-sm);
    background: var(--white);
    position: relative;
    transition: var(--transition);
}

.checkbox-container input:checked + .checkmark {
    background: var(--primary);
    border-color: var(--primary);
}

.checkbox-container input:checked + .checkmark::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 600;
}

.checkbox-text {
    font-size: 0.9rem;
    color: var(--dark-gray);
}

.terms-link {
    color: #1d4ed8;
    text-decoration: underline;
    font-weight: 600;
    transition: var(--transition);
}

.terms-link:hover {
    color: #1e40af;
    text-decoration: none;
}

/* Bouton de connexion */
.connect-btn {
    width: 100%;
    padding: var(--space-4) var(--space-6);
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    border-radius: var(--radius-md);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    position: relative;
    overflow: hidden;
}

.connect-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: var(--transition);
}

.connect-btn:hover::before {
    left: 100%;
}

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

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

.btn-icon {
    font-size: 1.2rem;
    transition: var(--transition);
}

.connect-btn:hover .btn-icon {
    transform: translateX(3px);
}

/* Connexion sociale */
.social-connect {
    text-align: center;
    margin-top: var(--space-6);
    padding-top: var(--space-6);
    border-top: 1px solid var(--light-gray);
}

.social-connect p {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: var(--space-4);
}

.social-buttons {
    display: flex;
    gap: var(--space-3);
}

.social-btn {
    flex: 1;
    padding: var(--space-3) var(--space-4);
    border: 2px solid var(--light-gray);
    border-radius: var(--radius-md);
    background: var(--white);
    color: var(--gray);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
}

.social-btn.discord:hover {
    border-color: #5865f2;
    color: #5865f2;
    background: rgba(88, 101, 242, 0.1);
}

.social-btn.telegram:hover {
    border-color: #0088cc;
    color: #0088cc;
    background: rgba(0, 136, 204, 0.1);
}

/* =====================================
   STATISTIQUES
   ===================================== */
.stats-bar {
    position: absolute;
    bottom: var(--space-8);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: var(--space-8);
    background: var(--white);
    padding: var(--space-6) var(--space-8);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-lg);
}

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

.stat-number {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray);
    margin-top: var(--space-1);
}

/* =====================================
   SECTIONS GÉNÉRALES
   ===================================== */
section {
    padding: var(--space-16) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-12);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--black);
    margin-bottom: var(--space-4);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
}

.section-title i {
    color: var(--primary);
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

/* =====================================
   SECTION RÈGLES
   ===================================== */
.rules-section {
    background: var(--light-gray);
}

.rules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-6);
}

.rule-card {
    background: var(--white);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

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

.rule-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-6);
    font-size: 2rem;
    color: var(--white);
}

.rule-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: var(--space-3);
}

.rule-card p {
    color: var(--gray);
    line-height: 1.6;
}

/* =====================================
   SECTION ÉQUIPE
   ===================================== */
.team-section {
    background: var(--white);
}

.team-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-6);
}

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

.card-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-success);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-4);
    font-size: 1.5rem;
    color: var(--white);
}

.info-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: var(--space-3);
}

.info-card p {
    color: var(--gray);
    line-height: 1.6;
}

/* =====================================
   SECTION SÉCURITÉ
   ===================================== */
.security-section {
    background: var(--light-gray);
}

.security-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
    align-items: start;
}

.security-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.security-item {
    display: flex;
    gap: var(--space-4);
    align-items: flex-start;
}

.security-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-secondary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--white);
    flex-shrink: 0;
}

.security-text h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--black);
    margin-bottom: var(--space-2);
}

.security-text p {
    color: var(--gray);
    line-height: 1.6;
}

.tips-container {
    background: var(--white);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
}

.tips-container h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: var(--space-6);
    text-align: center;
}

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

.tip {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3);
    background: var(--light-gray);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    color: var(--dark-gray);
}

.tip i {
    color: var(--primary);
    width: 20px;
    text-align: center;
}

/* =====================================
   SECTION CONTACT
   ===================================== */
.contact-section {
    background: var(--white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.contact-item {
    display: flex;
    gap: var(--space-4);
    align-items: flex-start;
    padding: var(--space-6);
    background: var(--light-gray);
    border-radius: var(--radius-xl);
}

.contact-item i {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--black);
    margin-bottom: var(--space-2);
}

.contact-item p {
    color: var(--gray);
    line-height: 1.6;
}

.contact-form {
    background: var(--light-gray);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
}

.contact-form .form-group {
    margin-bottom: var(--space-4);
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: var(--space-4);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    background: var(--white);
    font-size: 1rem;
    color: var(--dark-gray);
    transition: var(--transition);
    outline: none;
    resize: vertical;
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.contact-form input.error,
.contact-form textarea.error {
    border-color: var(--danger);
    box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.1);
}

.field-error {
    color: var(--danger);
    font-size: 0.875rem;
    margin-top: var(--space-1);
    opacity: 0;
    transition: var(--transition);
}

.submit-btn {
    width: 100%;
    padding: var(--space-4) var(--space-6);
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    border-radius: var(--radius-md);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
}

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

/* =====================================
   FOOTER
   ===================================== */
.modern-footer {
    background: #0f172a !important;
    color: #ffffff !important;
    padding: var(--space-16) 0 var(--space-8);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-8);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.footer-brand img {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
}

.footer-brand p {
    color: #cbd5e1 !important;
    font-size: 0.95rem;
    margin: 0;
}

.footer-links {
    flex: 1;
    display: flex;
    justify-content: center;
}

.footer-nav {
    display: flex;
    gap: var(--space-8);
    align-items: center;
}

.footer-nav a {
    color: #e2e8f0 !important;
    text-decoration: none;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-md);
    transition: var(--transition);
    font-weight: 500;
}

.footer-nav a:hover {
    color: #ffffff !important;
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-1px);
}



.footer-social h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--space-4);
    color: var(--white);
}

.social-links {
    display: flex;
    gap: var(--space-3);
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray);
    text-decoration: none;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-8);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: #cbd5e1 !important;
    font-size: 0.9rem;
}

.footer-badges {
    display: flex;
    gap: var(--space-3);
}

.badge {
    padding: var(--space-2) var(--space-3);
    background: #1e40af;
    color: var(--white);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    border: 1px solid #1e40af;
}

/* =====================================
   MODAL
   ===================================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    justify-content: center;
    align-items: center;
}

.modal.show {
    display: flex;
}

.modal-content {
    background: var(--white);
    border-radius: var(--radius-xl);
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-6);
    border-bottom: 1px solid var(--light-gray);
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--gray);
    cursor: pointer;
    padding: var(--space-2);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--light-gray);
    color: var(--black);
}

.modal-body {
    padding: var(--space-6);
    line-height: 1.6;
    color: var(--dark-gray);
}

/* =====================================
   RESPONSIVE DESIGN
   ===================================== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--space-8);
        text-align: center;
    }
    
    .security-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        border-top: 1px solid var(--border-color);
        box-shadow: var(--shadow-lg);
        padding: var(--space-4) 0;
    }
    
    .nav-menu.active {
        display: flex;
        flex-direction: column;
        gap: var(--space-2);
    }
    
    .nav-link {
        padding: var(--space-3) var(--space-6);
        border-radius: 0;
        text-align: center;
        font-weight: 500;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
        flex-direction: column;
        gap: var(--space-2);
    }
    
    .form-row,
    .tips-grid {
        grid-template-columns: 1fr;
    }
    
    /* Gender options restent sur une ligne sur tablette */
    .gender-options {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-2);
    }
    
    .social-buttons {
        flex-direction: column;
    }
    
    .stats-bar {
        position: relative;
        bottom: auto;
        left: auto;
        transform: none;
        margin-top: var(--space-8);
        flex-direction: column;
        gap: var(--space-4);
        text-align: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-4);
        text-align: center;
    }
    
    .chat-form-container {
        padding: var(--space-6);
    }
    
    /* Amélioration des marges tablette */
    .container {
        padding: 0 var(--space-4);
    }
    
    .nav-container {
        padding: 0 var(--space-4);
    }
    
    .hero-section {
        padding: 128px var(--space-4) var(--space-12); /* Fallback */
        padding: calc(80px + var(--space-12)) var(--space-4) var(--space-12);
    }
    
    /* Footer responsive tablette */
    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: var(--space-4);
    }
    
    .footer-nav {
        gap: var(--space-6);
    }
}

@media (max-width: 480px) {
    .hero-section {
        min-height: 100vh;
        padding: calc(80px + var(--space-8)) var(--space-3) var(--space-8);
        text-align: center;
    }
    
    .hero-content {
        flex-direction: column;
        align-items: center;
        gap: var(--space-8);
        max-width: 100%;
    }
    
    .hero-text {
        flex: none;
        max-width: 100%;
        text-align: center;
    }
    
    .hero-title {
        font-size: 1.8rem;
        line-height: 1.2;
        margin-bottom: var(--space-4);
    }
    
    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: var(--space-6);
    }
    
    .hero-features {
        justify-content: center;
        flex-wrap: wrap;
        gap: var(--space-4);
    }
    
    .feature {
        flex-direction: column;
        text-align: center;
        gap: var(--space-2);
        min-width: 120px;
    }
    
    .chat-form-container {
        width: 100%;
        max-width: 100%;
        margin: 0;
        padding: var(--space-4);
        border-radius: var(--radius-lg);
    }
    
    .rules-grid,
    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }
    
    .rule-card,
    .info-card {
        padding: var(--space-4);
        border-radius: var(--radius-lg);
    }
    
    .section-title {
        font-size: 1.75rem;
        text-align: center;
        margin-bottom: var(--space-6);
    }
    
    /* Marges mobile optimisées */
    .container {
        padding: 0 var(--space-3);
        max-width: 100%;
    }
    
    .modern-section {
        padding: var(--space-8) 0;
    }
    
    .nav-container {
        padding: 0 var(--space-4);
    }
    
    .hero-section {
        padding: 128px var(--space-4) var(--space-12); /* Fallback */
        padding: calc(80px + var(--space-12)) var(--space-4) var(--space-12);
    }
    
    /* Sections avec marges internes */
    .modern-section {
        padding: var(--space-12) 0;
    }
    
    .section-header,
    .features-grid,
    .rules-grid,
    .team-grid {
        padding: 0 var(--space-4);
    }
    
    .chat-form-container {
        margin: 0 var(--space-4);
        padding: var(--space-6);
    }
    
    /* Formulaires mobiles améliorés */
    .form-group {
        margin-bottom: var(--space-4);
    }
    
    .input-group input,
    .input-group select {
        padding: var(--space-3) var(--space-4);
        font-size: 16px; /* Évite le zoom sur iOS */
        border-radius: var(--radius-md);
    }
    
    .connect-btn {
        width: 100%;
        padding: var(--space-4) var(--space-6);
        font-size: 1.1rem;
        min-height: 56px; /* Taille tactile optimale */
    }
    
    /* Gender options optimisées pour mobile */
    .gender-options {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-2);
        margin: var(--space-4) 0;
    }
    
    .gender-option {
        padding: var(--space-3);
        min-height: 70px;
        border-radius: var(--radius-md);
        transition: var(--transition);
    }
    
    .gender-icon {
        font-size: 1.5rem;
    }
    
    .gender-option span {
        font-size: 0.9rem;
        font-weight: 500;
    }
    
    /* Footer responsive mobile */
    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: var(--space-4);
    }
    
    .footer-nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--space-4);
    }
    
    .footer-nav a {
        padding: var(--space-2) var(--space-3);
        font-size: 0.9rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-4);
        text-align: center;
    }
    
    .footer-badges {
        justify-content: center;
    }
}

/* Media query pour très petits écrans */
@media (max-width: 360px) {
    .hero-title {
        font-size: 1.6rem;
        line-height: 1.1;
    }
    
    .hero-subtitle {
        font-size: 0.95rem;
    }
    
    /* Marges très compactes */
    .container,
    .nav-container {
        padding: 0 var(--space-2);
    }
    
    .chat-form-container {
        margin: 0 var(--space-2);
        padding: var(--space-3);
    }
    
    .gender-options {
        grid-template-columns: 1fr;
        gap: var(--space-2);
    }
    
    .gender-option {
        padding: var(--space-3) var(--space-4);
        display: flex;
        align-items: center;
        justify-content: flex-start;
        gap: var(--space-3);
        min-height: 50px;
    }
    
    .gender-icon {
        font-size: 1.25rem;
        flex-shrink: 0;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .connect-btn {
        font-size: 1rem;
        min-height: 50px;
        padding: var(--space-3) var(--space-4);
    }
}

/* Améliorations tactiles générales */
@media (pointer: coarse) {
    /* Augmente les zones tactiles sur les appareils tactiles */
    .nav-link,
    .connect-btn,
    .gender-option,
    button,
    input[type="radio"],
    input[type="checkbox"] {
        min-height: 44px;
        min-width: 44px;
    }
    
    .toast-close {
        min-height: 32px;
        min-width: 32px;
        padding: var(--space-2);
    }
}

/* Mode sombre automatique */
@media (prefers-color-scheme: dark) {
    :root {
        --text-color: #e2e8f0;
        --text-light: #94a3b8;
        --bg-color: #0f172a;
        --bg-secondary: #1e293b;
        --border-color: #334155;
    }
}

/* =====================================
   ANIMATIONS ET TRANSITIONS
   ===================================== */
@keyframes slideInUp {
    from {
        transform: translateY(30px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.animate-slide-up {
    animation: slideInUp 0.6s ease-out;
}

.animate-fade-in {
    animation: fadeIn 0.8s ease-out;
}

/* States */
.loading .connect-btn {
    background: var(--gray);
    cursor: not-allowed;
    pointer-events: none;
}

.loading .btn-text::after {
    content: '...';
    animation: dots 1.5s infinite;
}

@keyframes dots {
    0%, 20% { content: ''; }
    40% { content: '.'; }
    60% { content: '..'; }
    80%, 100% { content: '...'; }
}

/* =====================================
   TOAST NOTIFICATIONS
   ===================================== */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    pointer-events: none;
}

.toast {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: 16px 20px;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-width: 300px;
    max-width: 400px;
    transform: translateX(420px);
    transition: var(--transition);
    pointer-events: auto;
    border-left: 4px solid;
}

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

.toast-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.toast-content i {
    font-size: 18px;
}

.toast-close {
    background: none;
    border: none;
    color: var(--gray);
    cursor: pointer;
    font-size: 20px;
    padding: 0;
    margin-left: 12px;
    transition: var(--transition-fast);
}

.toast-close:hover {
    color: var(--dark-gray);
}

/* Toast types */
.toast-success {
    border-left-color: var(--success);
}

.toast-success .toast-content i {
    color: var(--success);
}

.toast-error {
    border-left-color: var(--danger);
}

.toast-error .toast-content i {
    color: var(--danger);
}

.toast-info {
    border-left-color: var(--primary);
}

.toast-info .toast-content i {
    color: var(--primary);
}

.toast-warning {
    border-left-color: var(--warning);
}

.toast-warning .toast-content i {
    color: var(--warning);
}