/* ============================
   VARIABLES CSS ET COULEURS
   ============================ */
:root {
    --deep-blue: #0A2540;
    --lime-neon: #C7FF00;
    --milk-white: #FAFAFA;
    --graphite-gray: #3A3A3A;
    --coral-orange: #FF6B3D;
    --gradient-purple: #5E2E91;
    
    /* Transitions */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.2s ease;
    
    /* Espacements */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 3rem;
    --space-xl: 4rem;
    
    /* Typographie */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.875rem;
    --font-size-sm: 1rem;
    --font-size-md: 1.125rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 2.5rem;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--graphite-gray);
    background: var(--milk-white);
    overflow-x: hidden;
}

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

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

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

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

.hidden {
    display: none !important;
}

.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;
}

/* ============================
   BOUTONS
   ============================ */
.btn-primary {
    display: inline-flex;
    align-items: center;
    padding: var(--space-xs) var(--space-md);
    background: linear-gradient(135deg, var(--lime-neon), #A8E600);
    color: var(--deep-blue);
    font-weight: 600;
    border-radius: 50px;
    transition: var(--transition-smooth);
    text-align: center;
    border: 2px solid transparent;
}

.btn-primary:hover {
    background: var(--coral-orange);
    color: var(--milk-white);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 107, 61, 0.3);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    padding: var(--space-xs) var(--space-md);
    background: transparent;
    color: var(--lime-neon);
    font-weight: 600;
    border: 2px solid var(--lime-neon);
    border-radius: 50px;
    transition: var(--transition-smooth);
    text-decoration: none;
    opacity: 1;
    visibility: visible;
}

.btn-secondary:hover {
    background: var(--lime-neon);
    color: var(--deep-blue);
    transform: translateY(-2px);
}

/* Règles spécifiques pour les boutons dans la section services */
#services .card div a.btn-secondary,
#services .card a.btn-secondary,
section#services .card .btn-secondary,
section#services div.card a.btn-secondary {
    opacity: 1 !important;
    visibility: visible !important;
    display: inline-flex !important;
    position: relative !important;
    z-index: 10 !important;
    background: var(--lime-neon) !important;
    color: var(--deep-blue) !important;
    border: 2px solid var(--lime-neon) !important;
    text-decoration: none !important;
    padding: var(--space-xs) var(--space-md) !important;
    border-radius: 50px !important;
    font-weight: 600 !important;
    transition: var(--transition-smooth) !important;
    text-align: center !important;
}

#services .card div a.btn-secondary:hover,
#services .card a.btn-secondary:hover,
section#services .card .btn-secondary:hover {
    background: var(--coral-orange) !important;
    color: var(--milk-white) !important;
    transform: translateY(-2px) !important;
    box-shadow: 0 8px 25px rgba(255, 107, 61, 0.3) !important;
}

/* Règles générales pour tous les autres boutons */
.card .btn-secondary,
.btn-secondary {
    opacity: 1 !important;
    visibility: visible !important;
    display: inline-flex !important;
    position: relative !important;
    z-index: 10 !important;
}

.card .btn-primary,
.btn-primary {
    opacity: 1 !important;
    visibility: visible !important;
    display: inline-flex !important;
    position: relative !important;
    z-index: 10 !important;
}

/* ============================
   COOKIE BANNER
   ============================ */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, var(--deep-blue), var(--gradient-purple));
    color: var(--milk-white);
    padding: var(--space-sm);
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.cookie-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    gap: var(--space-sm);
}

.cookie-content p {
    flex: 1;
    font-size: var(--font-size-sm);
}

.cookie-content a {
    color: var(--lime-neon);
    text-decoration: underline;
}

.btn-cookie {
    padding: var(--space-xs) var(--space-md);
    background: var(--lime-neon);
    color: var(--deep-blue);
    border-radius: 25px;
    font-weight: 600;
    transition: var(--transition-fast);
    white-space: nowrap;
}

.btn-cookie:hover {
    background: var(--coral-orange);
    color: var(--milk-white);
}

/* ============================
   HEADER
   ============================ */
.header {
    background: rgba(250, 250, 250, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(10, 37, 64, 0.1);
}

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

/* Logo */
.logo a {
    font-size: var(--font-size-xl);
    font-weight: 800;
    background: linear-gradient(135deg, var(--deep-blue), var(--gradient-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo a:hover {
    transform: scale(1.05);
}

/* Navigation */
.nav-list {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    list-style: none;
}

.nav-link {
    color: var(--graphite-gray);
    font-weight: 500;
    padding: var(--space-xs);
    border-radius: 8px;
    transition: var(--transition-smooth);
}

.nav-link:hover {
    color: var(--deep-blue);
    background: rgba(10, 37, 64, 0.1);
}

/* Menu burger */
.menu-toggle {
    display: none;
}

.menu-burger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: var(--space-xs);
}

.menu-burger span {
    width: 25px;
    height: 3px;
    background: var(--graphite-gray);
    margin: 3px 0;
    transition: var(--transition-smooth);
    border-radius: 2px;
}

/* ============================
   SECTIONS PRINCIPALES
   ============================ */
.main-content {
    margin-top: 80px;
}

.section {
    padding: var(--space-xl) 0;
    position: relative;
}

.section-hero {
    background: linear-gradient(135deg, var(--deep-blue) 0%, var(--gradient-purple) 100%);
    color: var(--milk-white);
    text-align: center;
    padding: calc(var(--space-xl) * 2) 0;
    overflow: hidden;
}

.section-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(199, 255, 0, 0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    margin-bottom: var(--space-md);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-lg);
    opacity: 0.9;
}

.hero-cta {
    display: inline-flex;
    gap: var(--space-md);
}

/* Section générique */
.section-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--space-lg);
    color: var(--deep-blue);
}

.section-subtitle {
    font-size: var(--font-size-md);
    text-align: center;
    margin-bottom: var(--space-xl);
    color: var(--graphite-gray);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ============================
   GRILLES ET CARTES
   ============================ */
.grid {
    display: grid;
    gap: var(--space-md);
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
}

.card {
    background: var(--milk-white);
    border-radius: 16px;
    padding: var(--space-lg);
    box-shadow: 0 4px 20px rgba(10, 37, 64, 0.1);
    transition: var(--transition-smooth);
    border: 1px solid rgba(10, 37, 64, 0.1);
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(10, 37, 64, 0.15);
    border-color: var(--lime-neon);
}

.card-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--deep-blue);
    margin-bottom: var(--space-sm);
}

.card-text {
    color: var(--graphite-gray);
    line-height: 1.7;
}

/* ============================
   FORMULAIRES
   ============================ */
.form-container {
    background: linear-gradient(135deg, var(--deep-blue), var(--gradient-purple));
    border-radius: 20px;
    padding: var(--space-xl);
    color: var(--milk-white);
    max-width: 600px;
    margin: 0 auto;
}

.form-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--space-lg);
}

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

.form-label {
    display: block;
    margin-bottom: var(--space-xs);
    font-weight: 500;
    color: var(--lime-neon);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--space-sm);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--milk-white);
    font-size: var(--font-size-sm);
    transition: var(--transition-smooth);
}

.form-select {
    color: var(--milk-white) !important;
    background: rgba(255, 255, 255, 0.15) !important;
}

.form-select option {
    background: var(--deep-blue) !important;
    color: var(--milk-white) !important;
    padding: var(--space-xs);
}

.form-select option:checked {
    background: var(--lime-neon) !important;
    color: var(--deep-blue) !important;
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--lime-neon);
    box-shadow: 0 0 0 3px rgba(199, 255, 0, 0.2);
}

.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: var(--space-xs);
    margin-bottom: var(--space-sm);
}

.form-checkbox input[type="checkbox"] {
    margin-top: 4px;
    accent-color: var(--lime-neon);
}

.form-checkbox label {
    font-size: var(--font-size-xs);
    line-height: 1.5;
}

.form-checkbox a {
    color: var(--lime-neon);
    text-decoration: underline;
}

.form-submit {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    background: var(--lime-neon);
    color: var(--deep-blue);
    font-weight: 600;
    border-radius: 10px;
    transition: var(--transition-smooth);
    margin-top: var(--space-md);
}

.form-submit:hover {
    background: var(--coral-orange);
    color: var(--milk-white);
    transform: translateY(-2px);
}

/* ============================
   FOOTER
   ============================ */
.footer {
    background: linear-gradient(135deg, var(--deep-blue), var(--gradient-purple));
    color: var(--milk-white);
    padding: var(--space-xl) 0 var(--space-md);
}

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

.footer-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--lime-neon);
}

.footer-description {
    line-height: 1.7;
    opacity: 0.9;
}

.contact-info {
    space-y: var(--space-sm);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-xs);
    margin-bottom: var(--space-sm);
}

.contact-icon {
    font-size: var(--font-size-md);
    margin-top: 2px;
}

.contact-item a {
    color: var(--lime-neon);
    transition: var(--transition-fast);
}

.contact-item a:hover {
    color: var(--coral-orange);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--space-xs);
}

.footer-links a {
    opacity: 0.9;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--lime-neon);
    opacity: 1;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: var(--space-md);
    text-align: center;
}

.footer-copyright {
    opacity: 0.8;
    font-size: var(--font-size-sm);
}

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

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

/* ============================
   RESPONSIVE DESIGN
   ============================ */

/* Tablettes */
@media (max-width: 768px) {
    :root {
        --font-size-3xl: 2rem;
        --font-size-2xl: 1.75rem;
        --font-size-xl: 1.25rem;
    }
    
    .container {
        padding: 0 var(--space-sm);
    }
    
    /* Header mobile */
    .nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--milk-white);
        box-shadow: 0 4px 20px rgba(10, 37, 64, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-smooth);
    }
    
    .nav-list {
        flex-direction: column;
        padding: var(--space-md);
        gap: var(--space-sm);
    }
    
    .menu-burger {
        display: flex;
    }
    
    .menu-toggle:checked ~ .nav {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .menu-toggle:checked ~ .menu-burger span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }
    
    .menu-toggle:checked ~ .menu-burger span:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle:checked ~ .menu-burger span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }
    
    /* Sections */
    .section {
        padding: var(--space-lg) 0;
    }
    
    .section-hero {
        padding: var(--space-xl) 0;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    /* Grilles */
    .grid-3,
    .grid-2 {
        grid-template-columns: 1fr;
    }
    
    .card {
        padding: var(--space-md);
    }
    
    /* Cookie banner */
    .cookie-content {
        flex-direction: column;
        text-align: center;
    }
}

/* Mobiles */
@media (max-width: 480px) {
    :root {
        --space-sm: 0.75rem;
        --space-md: 1.5rem;
        --space-lg: 2rem;
        --space-xl: 3rem;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .form-container {
        padding: var(--space-md);
        margin: 0 var(--space-sm);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
}

/* Grandes écrans */
@media (min-width: 1400px) {
    .container {
        max-width: 1400px;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .section {
        padding: calc(var(--space-xl) * 1.5) 0;
    }
}