/* Custom Styles for Four D Tack */

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

/* Base styles */
body {
    font-family: 'Lato', system-ui, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Playfair Display', Georgia, serif;
}

/* Navbar transition */
#navbar {
    transition: background-color 0.5s ease, padding 0.5s ease;
}

#navbar.scrolled {
    background-color: rgba(10, 25, 47, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

/* Hero animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

header h1,
header p,
header .flex {
    animation: fadeInUp 0.8s ease forwards;
}

header h1 {
    animation-delay: 0.2s;
}

header p {
    animation-delay: 0.4s;
}

header .flex {
    animation-delay: 0.6s;
}

/* Scroll reveal animations */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.hidden {
    opacity: 0;
    transform: translateY(30px);
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #0a192f;
}

::-webkit-scrollbar-thumb {
    background: #d4af37;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #e5c158;
}

/* Image hover effects */
img {
    transition: transform 0.7s ease;
}

/* Button hover effects */
button, a {
    transition: all 0.3s ease;
}

/* Focus styles */
input:focus,
textarea:focus {
    outline: none;
}

/* Mobile menu animation */
#mobile-menu {
    transition: opacity 0.3s ease, transform 0.3s ease;
}

#mobile-menu.hidden {
    opacity: 0;
    transform: translateY(-10px);
    pointer-events: none;
}

#mobile-menu:not(.hidden) {
    opacity: 1;
    transform: translateY(0);
    pointer-events: all;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .font-serif {
        font-size: 2rem;
    }
    
    section {
        padding: 3rem 1rem;
    }
}