/* ===================================================
   A2AI - Intelligence Artificielle Locale Confidentielle
   Variables CSS et Styles personnalisés
   =================================================== */

:root {
    /* Couleurs principales */
    --a2ai-purple-dark: #4A1E6B;
    --a2ai-purple: #6B2D9B;
    --a2ai-purple-light: #8B4DBB;
    --a2ai-black: #0D0D0D;
    --a2ai-gradient: linear-gradient(135deg, var(--a2ai-purple-dark) 0%, var(--a2ai-black) 100%);
    --a2ai-gradient-hover: linear-gradient(135deg, var(--a2ai-purple) 0%, var(--a2ai-purple-dark) 100%);

    /* Couleurs de texte */
    --a2ai-text-light: #FFFFFF;
    --a2ai-text-muted: #B8B8B8;
    --a2ai-text-dark: #1A1A1A;

    /* Couleurs d'accent */
    --a2ai-accent: #9B59B6;
    --a2ai-accent-light: #BB79D6;
    --a2ai-success: #27AE60;
    --a2ai-warning: #F39C12;
    --a2ai-danger: #E74C3C;

    /* Ombres */
    --a2ai-shadow: 0 4px 20px rgba(74, 30, 107, 0.3);
    --a2ai-shadow-lg: 0 8px 40px rgba(74, 30, 107, 0.4);

    /* Transitions */
    --a2ai-transition: all 0.3s ease;
}

/* ===================================================
   Thème Light
   =================================================== */
[data-bs-theme="light"] {
    --a2ai-bg-primary: #FFFFFF;
    --a2ai-bg-secondary: #F8F9FA;
    --a2ai-bg-tertiary: #E9ECEF;
    --a2ai-text-primary: var(--a2ai-text-dark);
    --a2ai-text-secondary: #6C757D;
    --a2ai-border-color: #DEE2E6;
    --a2ai-card-bg: #FFFFFF;
}

/* ===================================================
   Thème Dark
   =================================================== */
[data-bs-theme="dark"] {
    --a2ai-bg-primary: #1A1A2E;
    --a2ai-bg-secondary: #16213E;
    --a2ai-bg-tertiary: #0F0F1A;
    --a2ai-text-primary: var(--a2ai-text-light);
    --a2ai-text-secondary: var(--a2ai-text-muted);
    --a2ai-border-color: #2D2D44;
    --a2ai-card-bg: #1A1A2E;
}

/* ===================================================
   Styles Généraux
   =================================================== */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--a2ai-bg-primary);
    color: var(--a2ai-text-primary);
    transition: var(--a2ai-transition);
}

/* ===================================================
   Navbar
   =================================================== */
.navbar-a2ai {
    background: var(--a2ai-gradient) !important;
    box-shadow: var(--a2ai-shadow);
    padding: 0.8rem 0;
}

.navbar-a2ai .navbar-brand img {
    max-height: 50px;
    transition: var(--a2ai-transition);
}

.navbar-a2ai .navbar-brand:hover img {
    transform: scale(1.05);
}

.navbar-a2ai .nav-link {
    color: var(--a2ai-text-light) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    margin: 0 0.2rem;
    border-radius: 0.5rem;
    transition: var(--a2ai-transition);
}

.navbar-a2ai .nav-link:hover,
.navbar-a2ai .nav-link.active {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.navbar-toggler {
    border-color: rgba(255, 255, 255, 0.5) !important;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.85%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}

/* ===================================================
   Hero Section
   =================================================== */
.hero-section {
    background: var(--a2ai-gradient);
    min-height: 80vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-section::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='%239B59B6' 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;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    color: var(--a2ai-text-light);
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--a2ai-text-muted);
    margin-bottom: 2rem;
    line-height: 1.8;
}

/* ===================================================
   Boutons
   =================================================== */
.btn-a2ai {
    background: var(--a2ai-gradient);
    color: var(--a2ai-text-light);
    border: none;
    padding: 0.8rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--a2ai-transition);
    box-shadow: var(--a2ai-shadow);
}

.btn-a2ai:hover {
    background: var(--a2ai-gradient-hover);
    color: var(--a2ai-text-light);
    transform: translateY(-3px);
    box-shadow: var(--a2ai-shadow-lg);
}

.btn-a2ai-outline {
    background: transparent;
    color: var(--a2ai-purple);
    border: 2px solid var(--a2ai-purple);
    padding: 0.8rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--a2ai-transition);
}

.btn-a2ai-outline:hover {
    background: var(--a2ai-gradient);
    color: var(--a2ai-text-light);
    border-color: transparent;
    transform: translateY(-3px);
}

/* ===================================================
   Cards
   =================================================== */
.card-a2ai {
    background: var(--a2ai-card-bg);
    border: 1px solid var(--a2ai-border-color);
    border-radius: 1rem;
    transition: var(--a2ai-transition);
    overflow: hidden;
}

.card-a2ai:hover {
    transform: translateY(-10px);
    box-shadow: var(--a2ai-shadow-lg);
    border-color: var(--a2ai-purple);
}

.card-a2ai .card-header {
    background: var(--a2ai-gradient);
    color: var(--a2ai-text-light);
    border-bottom: none;
    padding: 1.5rem;
}

.card-a2ai .card-body {
    padding: 2rem;
}

.card-a2ai .card-footer {
    background: transparent;
    border-top: 1px solid var(--a2ai-border-color);
    padding: 1.5rem 2rem;
}

/* Product Cards */
.product-card {
    height: 100%;
}

.product-card .product-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: var(--a2ai-transition);
}

.product-card:hover .product-image {
    transform: scale(1.05);
}

.product-card .product-title {
    color: var(--a2ai-purple);
    font-size: 1.5rem;
    font-weight: 700;
}

/* ===================================================
   Sections
   =================================================== */
.section-padding {
    padding: 5rem 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--a2ai-purple-dark);
    margin-bottom: 1rem;
    position: relative;
}

[data-bs-theme="dark"] .section-title {
    color: var(--a2ai-purple-light);
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: var(--a2ai-gradient);
    margin-top: 1rem;
    border-radius: 2px;
}

.section-title.text-center::after {
    margin-left: auto;
    margin-right: auto;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--a2ai-text-secondary);
    margin-bottom: 3rem;
}

/* ===================================================
   Features
   =================================================== */
.feature-box {
    text-align: center;
    padding: 2rem;
    border-radius: 1rem;
    background: var(--a2ai-card-bg);
    border: 1px solid var(--a2ai-border-color);
    transition: var(--a2ai-transition);
    height: 100%;
}

.feature-box:hover {
    transform: translateY(-5px);
    box-shadow: var(--a2ai-shadow);
    border-color: var(--a2ai-purple);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--a2ai-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: var(--a2ai-text-light);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--a2ai-purple-dark);
}

[data-bs-theme="dark"] .feature-title {
    color: var(--a2ai-purple-light);
}

/* ===================================================
   Footer
   =================================================== */
.footer-a2ai {
    background: var(--a2ai-gradient);
    color: var(--a2ai-text-light);
    padding: 3rem 0 1.5rem;
}

.footer-a2ai h5 {
    color: var(--a2ai-text-light);
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.footer-a2ai a {
    color: var(--a2ai-text-muted);
    text-decoration: none;
    transition: var(--a2ai-transition);
}

.footer-a2ai a:hover {
    color: var(--a2ai-text-light);
    padding-left: 5px;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 2rem;
    padding-top: 1.5rem;
    text-align: center;
}

/* ===================================================
   Forms
   =================================================== */
.form-control-a2ai {
    background: var(--a2ai-bg-secondary);
    border: 2px solid var(--a2ai-border-color);
    border-radius: 0.5rem;
    padding: 0.8rem 1rem;
    color: var(--a2ai-text-primary);
    transition: var(--a2ai-transition);
}

.form-control-a2ai:focus {
    border-color: var(--a2ai-purple);
    box-shadow: 0 0 0 3px rgba(107, 45, 155, 0.2);
    background: var(--a2ai-bg-primary);
}

.form-label-a2ai {
    font-weight: 600;
    color: var(--a2ai-text-primary);
    margin-bottom: 0.5rem;
}

/* ===================================================
   Theme Toggle
   =================================================== */
.theme-toggle {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--a2ai-transition);
    color: var(--a2ai-text-light);
    font-size: 1.2rem;
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(15deg);
}

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

.animate-fadeInUp {
    animation: fadeInUp 0.6s ease forwards;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

/* ===================================================
   Responsive
   =================================================== */
@media (max-width: 991.98px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 767.98px) {
    .hero-section {
        min-height: 100vh;
        padding: 2rem 0;
    }

    .hero-title {
        font-size: 2rem;
    }

    .section-padding {
        padding: 3rem 0;
    }

    .product-card .product-image {
        height: 200px;
    }
}

/* ===================================================
   Utilities
   =================================================== */
.bg-gradient-a2ai {
    background: var(--a2ai-gradient) !important;
}

.text-purple {
    color: var(--a2ai-purple) !important;
}

.text-purple-dark {
    color: var(--a2ai-purple-dark) !important;
}

.border-purple {
    border-color: var(--a2ai-purple) !important;
}

/* Legal page styling */
.legal-content h5 {
    color: var(--a2ai-purple);
    margin-top: 2rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.legal-content p {
    line-height: 1.8;
    text-align: justify;
}

/* Confidential badge */
.badge-confidential {
    background: var(--a2ai-gradient);
    color: var(--a2ai-text-light);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

/* Icon styling */
.icon-circle {
    width: 60px;
    height: 60px;
    background: var(--a2ai-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--a2ai-text-light);
    font-size: 1.5rem;
}

/* Scroll to top button */
.scroll-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--a2ai-gradient);
    border: none;
    border-radius: 50%;
    color: var(--a2ai-text-light);
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--a2ai-transition);
    z-index: 1000;
    box-shadow: var(--a2ai-shadow);
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--a2ai-shadow-lg);
}