/* Base styles & custom properties */
:root {
    --color-midnight-950: #060d18;
    --color-midnight-900: #0a1628;
    --color-midnight-800: #0f2244;
    --color-midnight-700: #152e58;
    --color-midnight-600: #1e3d72;
    --color-midnight-500: #2e5490;
    --color-midnight-400: #4f75ac;
    --color-midnight-300: #7a97c0;
    --color-midnight-200: #a5b8d4;
    --color-midnight-100: #d0d9e8;
    --color-midnight-50: #f0f4f8;
    --color-mint-500: #3dd3a3;
    --color-mint-400: #66e0b9;
    --color-mint-600: #1fb888;
}

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

/* Selection color */
::selection {
    background-color: rgba(61, 211, 163, 0.2);
    color: #0a1628;
}

/* Focus styles */
:focus-visible {
    outline: 1px solid #3dd3a3;
    outline-offset: 2px;
}

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

/* Scroll reveal animations (progressive enhancement) */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Service card hover effect */
.service-card {
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(61, 211, 163, 0.03) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
}

.service-card:hover::before {
    opacity: 1;
}

/* Navbar transition */
#navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(10, 22, 40, 0.06);
}

#navbar.scrolled #nav-logo-text {
    color: #0a1628;
}

#navbar.scrolled .nav-link {
    color: #1e3d72;
}

/* Mobile menu animation */
#mobile-menu.open {
    translate: 0;
}

/* Input autofill styling */
input:-webkit-autofill,
textarea:-webkit-autofill {
    -webkit-box-shadow: 0 0 0 30px #0f2244 inset !important;
    -webkit-text-fill-color: #f0f4f8 !important;
    caret-color: #f0f4f9;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: #0a1628;
}

::-webkit-scrollbar-thumb {
    background: #1e3d72;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: #2e5490;
}

/* Image aspect ratio utilities */
.aspect-portrait {
    aspect-ratio: 4 / 5;
}