@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* Global Reset & Typography */
:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #0f172a;
    --accent-color: #06b6d4;
    --bg-light: #f8fafc;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--text-main);
    background-color: #ffffff;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    letter-spacing: -0.025em;
    color: var(--secondary-color);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #f1f1f1;
}
::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Enhanced Button Styles */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: white;
    font-weight: 600;
    padding: 0.75rem 2rem;
    border-radius: 9999px;
    box-shadow: 0 4px 6px -1px rgba(37, 99, 235, 0.2), 0 2px 4px -1px rgba(37, 99, 235, 0.1);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(37, 99, 235, 0.3), 0 4px 6px -2px rgba(37, 99, 235, 0.15);
}

.btn-secondary {
    background: white;
    color: var(--text-main);
    font-weight: 600;
    padding: 0.75rem 2rem;
    border-radius: 9999px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background-color: #eff6ff;
}

/* Card Hover Effects */
.hover-card {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform, box-shadow;
}

.hover-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Gradient Text */
.gradient-text {
    background: linear-gradient(to right, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Section Spacing */
.section-padding {
    padding-top: 5rem;
    padding-bottom: 5rem;
}

@media (min-width: 768px) {
    .section-padding {
        padding-top: 7rem;
        padding-bottom: 7rem;
    }
}

/* Navigation Enhancements */
#navbar {
    background-color: #ffffff; /* Default solid white */
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000; /* Ensure it stays on top */
}

#navbar.scrolled {
    background-color: #ffffff; /* Fully opaque */
    backdrop-filter: none; /* No blur needed if opaque */
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

.nav-link {
    position: relative;
    padding-bottom: 2px;
}

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

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

/* Footer Links */
.footer-link {
    color: #94a3b8;
    transition: color 0.2s ease, transform 0.2s ease;
    display: inline-block;
}

/* Mobile Responsiveness Improvements */
@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem !important;
        line-height: 1.2;
    }
    
    h2 {
        font-size: 1.75rem !important;
    }
    
    .section-padding {
        padding-top: 4rem;
        padding-bottom: 4rem;
    }

    /* Stack flex containers on mobile */
    .flex-col-mobile {
        flex-direction: column;
    }

    /* Adjust padding for containers */
    .container-mobile {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

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