/* Base styles and custom utilities */
html {
    scroll-behavior: smooth;
}

body {
    overflow-x: hidden;
}

/* Scroll reveal animations - progressive enhancement */
.scroll-reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

@media (prefers-reduced-motion: no-preference) {
    .scroll-reveal {
        opacity: 0;
        transform: translateY(30px);
    }
    
    .scroll-reveal.is-visible {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Navbar scroll state */
.navbar-scrolled {
    background: rgba(2, 6, 23, 0.95) !important;
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.05);
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
    background: #0c4a6e;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #075985;
}

/* Selection color */
::selection {
    background: #0c4a6e;
    color: #f0f9ff;
}

/* Image loading placeholder */
img {
    background-color: #f1f5f9;
}

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

/* Smooth transitions for interactive elements */
a, button {
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Subtle pattern for hero overlay */
.hero-pattern {
    background-image: radial-gradient(circle at 25% 25%, rgba(14, 165, 233, 0.03) 0%, transparent 50%),
                      radial-gradient(circle at 75% 75%, rgba(14, 165, 233, 0.05) 0%, transparent 50%);
}

/* Mobile menu animation */
#mobile-menu {
    animation: slideDown 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Button hover lift effect */
button:hover,
a:hover {
    transform: translateY(-1px);
}

button:active,
a:active {
    transform: translateY(0);
}