/* ===== FONTS & VARIABLES NAVBAR ===== */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Space+Grotesk:wght@500;600;700&display=swap');

:root {
    --primary: #2A83C6;
    --text: #334155;
    --dark: #1b2e4b;
    --gradient-2: linear-gradient(135deg, #2A83C6 0%, #4dbbd5 100%);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
}

a {
    text-decoration: none;
    color: inherit;
}

/* ===== NAVIGATION STYLES ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 1);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding: 1rem 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand-logo {
    height: 50px;
    width: auto;
    transition: var(--transition);
}

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

.nav-menu {
    display: flex;
    gap: 2.5rem;
}

.nav-link {
    position: relative;
    font-weight: 600;
    color: var(--text);
    transition: var(--transition);
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-2);
    transition: width 0.3s ease;
}

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

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn-demo {
    padding: 0.75rem 1.5rem;
    background: var(--gradient-2);
    color: white;
    border-radius: 999px;
    font-weight: 700;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(42, 131, 198, 0.3);
}

.btn-demo:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(42, 131, 198, 0.4);
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--dark);
    transition: var(--transition);
}

.mobile-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== NAVIGATION RESPONSIVE ===== */

/* Tablette - Menu horizontal compact */
@media (max-width: 1024px) {
    .nav-container {
        padding: 0 1.5rem;
    }
    
    .nav-menu {
        gap: 1.5rem;
    }
    
    .nav-link {
        font-size: 0.9rem;
    }
    
    .btn-demo {
        padding: 0.625rem 1.25rem;
        font-size: 0.9rem;
    }
}

/* Mobile - Menu hamburger */
@media (max-width: 768px) {
    .nav-container {
        padding: 0 1rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        gap: 0;
        padding: 1rem 0;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-link {
        padding: 1rem 2rem;
        font-size: 1rem;
        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    }
    
    .nav-link:last-child {
        border-bottom: none;
    }
    
    .nav-link::after {
        display: none;
    }
    
    .nav-link:hover {
        background: rgba(42, 131, 198, 0.05);
    }
    
    .nav-actions {
        gap: 0.75rem;
    }
    
    .btn-demo {
        display: none;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .brand-logo {
        height: 40px;
    }
}