:root {
    --primary: #0d6efd;
    --primary-dark: #0a58ca;
    --secondary: #6c757d;
    --dark: #1a1a2e;
    --darker: #16213e;
    --light: #f8f9fa;
}

/* ===== Global ===== */
html { scroll-behavior: smooth; }

body {
    font-family: 'Prompt', 'Segoe UI', sans-serif;
    color: #333;
    overflow-x: hidden;
}

/* ===== Navbar ===== */
.navbar-landing {
    background: transparent;
    transition: all .3s ease;
    padding: 1rem 0;
}
.navbar-landing.scrolled {
    background: rgba(26,26,46,.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0,0,0,.15);
    padding: .5rem 0;
}
.navbar-landing .navbar-brand { font-weight: 700; font-size: 1.5rem; color: #fff !important; }
.navbar-landing .nav-link { color: rgba(255,255,255,.85) !important; font-weight: 500; }
.navbar-landing .nav-link:hover { color: #fff !important; }

/* ===== Hero ===== */
.hero-section {
    background: linear-gradient(135deg, var(--dark) 0%, var(--darker) 50%, var(--primary-dark) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}
.hero-section::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff08" d="M0,192L48,176C96,160,192,128,288,133.3C384,139,480,181,576,186.7C672,192,768,160,864,154.7C960,149,1056,171,1152,181.3C1248,192,1344,192,1392,192L1440,192L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
    background-size: cover;
    background-position: bottom;
}
.hero-content { position: relative; z-index: 2; }
.hero-title { font-size: 3rem; font-weight: 800; color: #fff; line-height: 1.2; }
.hero-subtitle { font-size: 1.25rem; color: rgba(255,255,255,.7); max-width: 600px; }
.hero-stats { margin-top: 2rem; }
.hero-stats .stat-item { text-align: center; padding: 1rem; }
.hero-stats .stat-number { font-size: 2rem; font-weight: 700; color: var(--primary); }
.hero-stats .stat-label { font-size: .85rem; color: rgba(255,255,255,.6); }

/* ===== Features ===== */
.features-section { padding: 5rem 0; background: var(--light); }
.feature-card {
    border: none;
    border-radius: 12px;
    padding: 2rem;
    transition: transform .3s, box-shadow .3s;
    height: 100%;
    background: #fff;
}
.feature-card:hover { transform: translateY(-5px); box-shadow: 0 10px 30px rgba(0,0,0,.1); }
.feature-icon {
    width: 60px; height: 60px;
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem; color: #fff;
    margin-bottom: 1rem;
}

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

/* ===== CTA ===== */
.cta-section {
    padding: 4rem 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
}

/* ===== Contact ===== */
.contact-section { padding: 5rem 0; background: var(--light); }
.contact-card {
    border: none; border-radius: 12px; padding: 2rem;
    text-align: center; background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,.05);
}
.contact-icon { font-size: 2rem; margin-bottom: .5rem; }

/* ===== Footer ===== */
.footer-landing {
    background: var(--dark);
    color: rgba(255,255,255,.6);
    padding: 2rem 0;
}
.footer-landing a { color: rgba(255,255,255,.8); text-decoration: none; }
.footer-landing a:hover { color: #fff; }

/* ===== Animations ===== */
.fade-up {
    opacity: 0; transform: translateY(30px);
    transition: opacity .6s ease, transform .6s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ===== Responsive ===== */
@media (max-width: 991px) {
    .navbar-landing.menu-open {
        background: rgba(26, 26, 46, 0.97) !important;
        backdrop-filter: blur(12px);
    }
    .navbar-landing .navbar-collapse {
        padding: 1rem 0.5rem;
        margin-top: 0.75rem;
    }
    .navbar-landing .navbar-collapse .nav-link {
        padding: 0.6rem 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .navbar-landing .navbar-collapse .nav-item:last-child .nav-link {
        border-bottom: none;
    }
    .navbar-landing .navbar-collapse .btn {
        margin-top: 0.75rem;
        width: 100%;
    }
    .navbar-landing .navbar-collapse .lang-toggle {
        margin: 0.75rem 0;
    }
}
@media (max-width: 768px) {
    .hero-title { font-size: 2rem; }
    .hero-subtitle { font-size: 1rem; }
}