/* Custom CSS for Stellar AI - Bootstrap Enhanced */

/* Override Bootstrap primary color to match our brand */
:root {
    --bs-primary: #c32429;
    --bs-primary-rgb: 195, 36, 41;
}

/* Smooth scroll behavior */
html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Pretendard', 'SUIT', 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: #fdfcfb;
    color: #0f172a;
}

/* Custom utility classes */
.text-light-emphasis {
    opacity: 0.85;
}

/* Navbar active link styling */
.navbar-nav .nav-link.active {
    font-weight: 600;
    color: #c32429 !important;
    border-bottom: 2px solid #c32429;
}

.navbar-light .navbar-nav .nav-link {
    color: #0f172a !important;
}

.navbar-light .navbar-nav .nav-link:hover {
    color: #c32429 !important;
}

.navbar-light .navbar-brand {
    color: #0f172a !important;
}

.navbar-light .navbar-brand:hover {
    color: #c32429 !important;
}

/* Card hover effects */
.card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15) !important;
}

/* Button enhancements */
.btn {
    transition: all 0.3s ease;
}

.btn-lg {
    padding: 0.75rem 2rem;
}

/* Gradient background helper */
.bg-gradient {
    background: linear-gradient(135deg, #c32429 0%, #a01f23 100%);
}

/* Custom section spacing */
section {
    position: relative;
}

/* Icon styling */
.bi {
    display: inline-block;
}

/* Shadow utilities */
.shadow-sm {
    box-shadow: 0 0.125rem 0.5rem rgba(0, 0, 0, 0.075) !important;
}

.shadow-lg {
    box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.175) !important;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .display-3 {
        font-size: 2.5rem;
    }

    .display-4 {
        font-size: 2rem;
    }

    .display-5 {
        font-size: 1.75rem;
    }
}

/* Form enhancements */
.form-control:focus {
    border-color: #c32429;
    box-shadow: 0 0 0 0.2rem rgba(195, 36, 41, 0.25);
}

/* Badge styling */
.badge {
    font-weight: 500;
    letter-spacing: 0.5px;
}

/* Animate on scroll (optional) */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeInUp 0.6s ease-out;
}