/* ===== CSS POUR LA PAGE D'ACCUEIL (MINIMALISTE, MODERNE, UX OPTIMISÉ) ===== */
/* Animation */
.animate-slide-up {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.animate-slide-up.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-3) 0;
    z-index: var(--z-fixed);
    transition: background-color var(--transition-normal), box-shadow var(--transition-normal);
}

.header a {
    text-decoration: none;
}

.header.scrolled {
    box-shadow: var(--shadow-sm);
}

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

.header-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    text-decoration: none;
}

.logo-img {
    width: 28px;
    height: 28px;
    transition: transform var(--transition-fast);
}

.header-logo:hover .logo-img {
    transform: scale(1.1);
}

.header-brand {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
}

.header-nav {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: var(--spacing-5);
    list-style: none;
}

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast), transform var(--transition-fast);
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color);
    transform: translateY(-1px);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width var(--transition-fast);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-cta {
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-sm);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

/* Menu hamburger */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-3);
    position: relative;
    z-index: var(--z-modal);
    transition: transform var(--transition-fast);
}

.menu-toggle:hover {
    transform: scale(1.1);
}

.menu-toggle span {
    width: 24px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-normal);
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
    transform: translateX(-10px);
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Hero Section */
.hero-section {
    padding: var(--spacing-24) 0 var(--spacing-12) 0;
    background: var(--bg-primary);
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.section-title {
    font-size: var(--font-size-5xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-4);
    line-height: 1.1;
}

.section-subtitle {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-light);
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto var(--spacing-6) auto;
}

.hero-cta {
    margin-top: var(--spacing-6);
}

.hero-image {
    margin-top: var(--spacing-8);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-image img {
    width: 100%;
    height: auto;
    max-height: 400px;
    object-fit: cover;
}

/* Features Section */
.features-section {
    padding: var(--spacing-16) 0;
    background: var(--bg-secondary);
}

.feature-card {
    padding: var(--spacing-6);
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.feature-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(var(--primary-rgb), 0.15);
    color: var(--primary-color);
    border-radius: var(--border-radius-full);
    margin: 0 auto var(--spacing-4) auto;
    transition: transform var(--transition-fast);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
}

.feature-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-2);
}

.feature-description {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

/* About Section */
.about-section {
    padding: var(--spacing-16) 0;
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

.about-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.05) 0%, transparent 100%);
    z-index: 0;
}

.about-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.about-icon {
    margin-bottom: var(--spacing-6);
}

.about-text {
    text-align: center;
}

.about-features {
    margin-top: var(--spacing-6);
}

.feature-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.feature-item i {
    margin-bottom: var(--spacing-2);
}

/* CTA Section */
.cta-section {
    padding: var(--spacing-16) 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white);
}

.cta-content .section-title,
.cta-content .section-subtitle {
    color: var(--white);
}

/* Boutons (alignés sur calendar.css/global.css) */
.btn {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    padding: var(--spacing-2) var(--spacing-4) !important;
    font-size: var(--font-size-sm) !important;
    font-weight: var(--font-weight-medium) !important;
    border-radius: var(--border-radius) !important;
    cursor: pointer !important;
    transition: all var(--transition-fast) !important;
    text-decoration: none !important;
}

.btn.btn-primary {
    background: var(--primary-color) !important;
    color: var(--white) !important;
    border: none !important;
}

.btn.btn-primary:hover {
    background: var(--primary-dark) !important;
}

.btn.btn-primary:focus {
    outline: none !important;
    box-shadow: var(--focus-ring) !important;
}

.btn.btn-primary:active {
    transform: scale(0.95) !important;
}

.btn.btn-outline {
    background: transparent !important;
    color: var(--primary-color) !important;
    border: 1px solid var(--primary-color) !important;
}

.btn.btn-outline:hover {
    background: var(--primary-color) !important;
    color: var(--white) !important;
}

.btn.btn-outline:focus {
    outline: none !important;
    box-shadow: var(--focus-ring) !important;
}

.btn.btn-outline:active {
    transform: scale(0.95) !important;
}

.btn.btn-large {
    padding: var(--spacing-3) var(--spacing-6) !important;
    font-size: var(--font-size-base) !important;
}

/* Footer */
.footer {
    padding: var(--spacing-8) 0;
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    align-items: flex-start;
}

.footer-brand p {
    color: var(--text-muted);
}

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

.footer-links a,
.footer-social a {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-2);
    display: block;
    transition: color var(--transition-fast);
}

.footer-links a:hover,
.footer-social a:hover {
    color: var(--primary-color);
}

.social-icons {
    display: flex;
    align-items: center;
}

.social-icon i {
    transition: transform var(--transition-fast);
}

.social-icon:hover i {
    transform: scale(1.2);
}

/* Responsive */
@media (max-width: 1024px) {
    .about-content {
        text-align: center;
    }

    .hero-image {
        max-width: 500px;
    }
}

@media (max-width: 768px) {
    .header-nav {
        display: none;
    }

    .header-nav.active {
        display: flex;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: var(--bg-primary);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        z-index: var(--z-modal);
        animation: slideDown 0.3s ease-out;
    }

    .nav-list {
        flex-direction: column;
        gap: var(--spacing-6);
    }

    .nav-link {
        font-size: var(--font-size-base);
    }

    .nav-cta {
        padding: var(--spacing-3) var(--spacing-6);
    }

    .menu-toggle {
        display: flex;
    }

    .hero-section {
        padding: var(--spacing-16) 0 var(--spacing-8) 0;
    }

    .section-title {
        font-size: var(--font-size-3xl);
    }

    .section-subtitle {
        font-size: var(--font-size-base);
    }

    .features-section .grid {
        grid-template-columns: 1fr;
    }

    .hero-cta {
        flex-direction: column;
        gap: var(--spacing-3);
    }

    .btn.btn-large {
        width: 100% !important;
        padding: var(--spacing-3) var(--spacing-6) !important;
    }

    .about-features {
        grid-template-columns: 1fr;
    }

    .theme-toggle {
        display: none;
    }

    .header-nav.active .theme-toggle-sidebar {
        display: flex;
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .section-title {
        font-size: var(--font-size-2xl);
    }

    .section-subtitle {
        font-size: var(--font-size-sm);
    }

    .feature-card {
        padding: var(--spacing-4);
    }

    .hero-image {
        max-width: 100%;
    }
}