:root {
    --accent: #6366f1;
    --accent-2: #a855f7;
}

body {
    font-family: "Segoe UI", system-ui, sans-serif;
    background: #0b1120;
    color: #e2e8f0;
}

.custom-navbar {
    background: rgba(11, 17, 32, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.custom-navbar .navbar-brand {
    color: #fff;
    font-size: 1.4rem;
    letter-spacing: 0.5px;
}

.brand-dot {
    color: var(--accent);
}

.custom-navbar .nav-link {
    color: #cbd5e1;
    font-weight: 500;
    border-radius: 10px;
    transition: color 0.25s ease, background 0.25s ease;
}

.custom-navbar .nav-link:hover,
.custom-navbar .nav-link.active {
    color: #fff;
    background: rgba(99, 102, 241, 0.18);
}

.btn-accent {
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    color: #fff;
    border: none;
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.35);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-accent:hover,
.btn-accent:focus {
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 12px 26px rgba(99, 102, 241, 0.5);
}

.navbar-toggler {
    border-color: rgba(255, 255, 255, 0.3);
}

.navbar-toggler:focus {
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.4);
}

.navbar-toggler-icon {
    filter: invert(1);
}

.hero {
    padding: 7rem 0 6rem;
    background:
        radial-gradient(circle at 20% 30%, rgba(99, 102, 241, 0.35), transparent 45%),
        radial-gradient(circle at 80% 60%, rgba(168, 85, 247, 0.3), transparent 45%),
        #0b1120;
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(90deg, #a5b4fc, #e9d5ff);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero p {
    color: #94a3b8;
    max-width: 560px;
    margin: 0 auto 2rem;
    font-size: 1.05rem;
}

.section-title {
    color: #f1f5f9;
    font-weight: 700;
}

.feature-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    color: #e2e8f0;
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(99, 102, 241, 0.5);
    box-shadow: 0 18px 44px rgba(99, 102, 241, 0.2);
}

.feature-card.featured {
    border-color: rgba(99, 102, 241, 0.6);
    background: rgba(99, 102, 241, 0.1);
}

.feature-card .card-title {
    color: #fff;
    font-weight: 600;
}

footer {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}