/* ==========================================
   VARIABLES ET CONFIGURATION
   ========================================== */
:root {
    /* Couleurs principales - Thème Police */
    --primary-color: #1e3a8a;       /* Bleu foncé police */
    --primary-dark: #1e293b;        /* Bleu très foncé */
    --primary-light: #3b82f6;       /* Bleu clair */
    --secondary-color: #dc2626;     /* Rouge accent */
    --accent-color: #fbbf24;        /* Jaune/Or */
    
    /* Couleurs neutres */
    --white: #ffffff;
    --light-gray: #f8fafc;
    --gray: #64748b;
    --dark-gray: #334155;
    --black: #0f172a;
    
    /* Typographie */
    --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-heading: 'Arial Black', Arial, sans-serif;
    
    /* Espacements */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Bordures */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    /* Ombres */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Mode Sombre */
[data-theme="dark"] {
    --primary-color: #3b82f6;
    --primary-dark: #1e3a8a;
    --primary-light: #60a5fa;
    --secondary-color: #ef4444;
    --accent-color: #fbbf24;
    
    --white: #0f172a;
    --light-gray: #1e293b;
    --gray: #94a3b8;
    --dark-gray: #e2e8f0;
    --black: #f8fafc;
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.5);
}

/* ==========================================
   RESET ET BASE
   ========================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-primary);
    color: var(--dark-gray);
    line-height: 1.6;
    background-color: var(--light-gray);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-dark);
    text-align: center;
    margin-bottom: var(--spacing-md);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    margin: var(--spacing-sm) auto 0;
    border-radius: var(--radius-sm);
}

.required {
    color: var(--secondary-color);
}

/* ==========================================
   HEADER ET NAVIGATION
   ========================================== */
.header {
    background: var(--primary-dark);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition-normal);
}

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

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

/* Bouton Theme Toggle */
.theme-toggle {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    color: var(--white);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    -webkit-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    position: relative;
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1) rotate(20deg);
    -webkit-transform: scale(1.1) rotate(20deg);
    -o-transform: scale(1.1) rotate(20deg);
    border-color: var(--accent-color);
}

.theme-icon {
    position: absolute;
    width: 20px;
    height: 20px;
    transition: all 0.4s ease;
    -webkit-transition: all 0.4s ease;
    -o-transition: all 0.4s ease;
}

.theme-icon svg {
    width: 100%;
    height: 100%;
    fill: currentColor;
}

[data-theme="dark"] .theme-toggle .sun-icon {
    opacity: 0;
    transform: scale(0) rotate(-180deg);
    -webkit-transform: scale(0) rotate(-180deg);
    -o-transform: scale(0) rotate(-180deg);
}

[data-theme="dark"] .theme-toggle .moon-icon {
    opacity: 1;
    transform: scale(1) rotate(0deg);
    -webkit-transform: scale(1) rotate(0deg);
    -o-transform: scale(1) rotate(0deg);
}

[data-theme="light"] .theme-toggle .sun-icon {
    opacity: 1;
    transform: scale(1) rotate(0deg);
    -webkit-transform: scale(1) rotate(0deg);
    -o-transform: scale(1) rotate(0deg);
}

[data-theme="light"] .theme-toggle .moon-icon {
    opacity: 0;
    transform: scale(0) rotate(180deg);
    -webkit-transform: scale(0) rotate(180deg);
    -o-transform: scale(0) rotate(180deg);
}

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

.logo-img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 3px solid var(--accent-color);
    animation: glow 3s ease-in-out infinite;
    -webkit-animation: glow 3s ease-in-out infinite;
    transition: var(--transition-normal);
    -webkit-transition: var(--transition-normal);
}

.logo-img:hover {
    transform: scale(1.1) rotate(5deg);
    -webkit-transform: scale(1.1) rotate(5deg);
}

.logo-text {
    font-size: 1.75rem;
    font-weight: 900;
    color: var(--white);
    letter-spacing: 1px;
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-subtitle {
    font-size: 0.7rem;
    font-weight: 400;
    color: var(--accent-color);
    letter-spacing: 2px;
}

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

.nav-link {
    color: var(--white);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    position: relative;
}

.nav-link:hover {
    color: var(--accent-color);
    background-color: rgba(255, 255, 255, 0.1);
}

.nav-link.active {
    color: var(--accent-color);
    background-color: rgba(251, 191, 36, 0.1);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent-color);
}

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--spacing-xs);
}

.mobile-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--white);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

/* ==========================================
   BOUTONS
   ========================================== */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, #2563eb 100%);
    color: var(--white);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.btn-primary::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: left 0.5s;
}

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

.btn-primary:hover {
    background: linear-gradient(135deg, #2563eb 0%, var(--primary-color) 100%);
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 10px 30px rgba(30, 58, 138, 0.4);
}

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

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

.btn-light {
    background: var(--white);
    color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.btn-light:hover {
    background: var(--light-gray);
    transform: translateY(-2px);
}

/* ==========================================
   PAGE HEADER
   ========================================== */
.page-header {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    color: var(--white);
    padding: var(--spacing-xl) 0;
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.page-header h1 {
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: var(--spacing-sm);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.page-header p {
    font-size: 1.25rem;
    opacity: 0.9;
}

/* ==========================================
   FORMULAIRES
   ========================================== */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--dark-gray);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid #e2e8f0;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition-fast);
    background-color: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    cursor: pointer;
}

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

.form-message {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-top: var(--spacing-md);
}

.success-message {
    background: #dcfce7;
    border-left: 4px solid #22c55e;
    color: #166534;
}

.error-message {
    background: #fee2e2;
    border-left: 4px solid #ef4444;
    color: #991b1b;
}

/* ==========================================
   FOOTER
   ========================================== */
.footer {
    background: var(--primary-dark);
    color: var(--white);
    padding: var(--spacing-lg) 0 var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.footer-col h4 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--accent-color);
}

.footer-motto {
    font-style: italic;
    opacity: 0.8;
    margin-top: var(--spacing-xs);
}

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

.footer-links a {
    opacity: 0.8;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    opacity: 1;
    color: var(--accent-color);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.7;
}

/* ==========================================
   ANIMATIONS
   ========================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
        -webkit-transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
        -webkit-transform: translateY(0);
    }
}

@-webkit-keyframes fadeIn {
    from {
        opacity: 0;
        -webkit-transform: translateY(20px);
    }
    to {
        opacity: 1;
        -webkit-transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
        -webkit-transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
        -webkit-transform: translateX(0);
    }
}

@-webkit-keyframes slideInLeft {
    from {
        opacity: 0;
        -webkit-transform: translateX(-50px);
    }
    to {
        opacity: 1;
        -webkit-transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
        -webkit-transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
        -webkit-transform: translateX(0);
    }
}

@-webkit-keyframes slideInRight {
    from {
        opacity: 0;
        -webkit-transform: translateX(50px);
    }
    to {
        opacity: 1;
        -webkit-transform: translateX(0);
    }
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(251, 191, 36, 0.5);
    }
    50% {
        box-shadow: 0 0 40px rgba(251, 191, 36, 0.8), 0 0 60px rgba(251, 191, 36, 0.4);
    }
}

@-webkit-keyframes glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(251, 191, 36, 0.5);
    }
    50% {
        box-shadow: 0 0 40px rgba(251, 191, 36, 0.8), 0 0 60px rgba(251, 191, 36, 0.4);
    }
}

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

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

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

@-webkit-keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
    -webkit-animation: fadeIn 0.6s ease-out;
}

/* ==========================================
   RESPONSIVE - TABLETTE
   ========================================== */
@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .page-header h1 {
        font-size: 2.25rem;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .nav-list {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--primary-dark);
        flex-direction: column;
        padding: var(--spacing-md);
        gap: var(--spacing-sm);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        -webkit-transform: translateY(-100%);
        -o-transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-normal);
        -webkit-transition: var(--transition-normal);
        -o-transition: var(--transition-normal);
    }
    
    .nav-list.active {
        transform: translateY(0);
        -webkit-transform: translateY(0);
        -o-transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-link {
        width: 100%;
        text-align: center;
        padding: var(--spacing-sm);
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

/* ==========================================
   RESPONSIVE - MOBILE
   ========================================== */
@media (max-width: 480px) {
    html {
        font-size: 13px;
    }
    
    .container {
        padding: 0 var(--spacing-xs);
    }
    
    .logo-text {
        font-size: 1.5rem;
    }
    
    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.95rem;
    }
    
    .page-header {
        padding: var(--spacing-md) 0;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* ==========================================
   ACCESSIBILITÉ
   ========================================== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Focus visible pour accessibilité clavier */
*:focus-visible {
    outline: 3px solid var(--accent-color);
    outline-offset: 2px;
}

/* ==========================================
   BANNIÈRE COOKIES
   ========================================== */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.98) 0%, rgba(30, 58, 138, 0.98) 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: var(--spacing-md);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
    z-index: 10000;
    transform: translateY(100%);
    -webkit-transform: translateY(100%);
    transition: transform 0.5s ease;
    -webkit-transition: transform 0.5s ease;
    border-top: 3px solid var(--accent-color);
}

.cookie-banner.show {
    transform: translateY(0);
    -webkit-transform: translateY(0);
}

.cookie-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.cookie-icon {
    width: 50px;
    height: 50px;
    min-width: 50px;
    color: var(--accent-color);
    animation: float 3s ease-in-out infinite;
    -webkit-animation: float 3s ease-in-out infinite;
}

.cookie-icon svg {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 0 10px rgba(251, 191, 36, 0.5));
    -webkit-filter: drop-shadow(0 0 10px rgba(251, 191, 36, 0.5));
}

.cookie-text {
    flex: 1;
    min-width: 300px;
    color: var(--white);
}

.cookie-text h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--accent-color);
}

.cookie-text p {
    font-size: 0.95rem;
    opacity: 0.9;
    line-height: 1.6;
}

.cookie-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.cookie-btn {
    padding: 0.75rem 2rem;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    -webkit-transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.cookie-accept {
    background: linear-gradient(135deg, var(--accent-color) 0%, #f59e0b 100%);
    color: var(--primary-dark);
    box-shadow: 0 4px 15px rgba(251, 191, 36, 0.3);
}

.cookie-accept:hover {
    background: linear-gradient(135deg, #f59e0b 0%, var(--accent-color) 100%);
    transform: translateY(-2px);
    -webkit-transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(251, 191, 36, 0.5);
}

.cookie-decline {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.cookie-decline:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
    -webkit-transform: translateY(-2px);
}

/* Responsive Cookie Banner */
@media (max-width: 768px) {
    .cookie-content {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-sm);
    }

    .cookie-icon {
        margin: 0 auto;
    }

    .cookie-buttons {
        width: 100%;
        justify-content: center;
    }

    .cookie-btn {
        flex: 1;
        min-width: 120px;
    }

    .cookie-text h3 {
        font-size: 1.1rem;
    }

    .cookie-text p {
        font-size: 0.875rem;
    }
}

@media (max-width: 480px) {
    .cookie-banner {
        padding: var(--spacing-sm);
    }

    .cookie-buttons {
        flex-direction: column;
    }

    .cookie-btn {
        width: 100%;
        padding: 0.65rem 1.5rem;
        font-size: 0.9rem;
    }
}