/* Base styles and custom properties */
:root {
    --color-teal-500: #14b8a6;
    --color-teal-600: #0d9488;
    --color-slate-950: #080e1a;
    --color-slate-900: #0f172a;
    --color-slate-800: #1e293b;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow-x: hidden;
}

/* Scroll reveal animations - progressive enhancement via JS */
.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);
}

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

/* Section headers */
.section-label {
    display: block;
    letter-spacing: 0.15em;
}

.section-title {
    letter-spacing: -0.02em;
}

.section-subtitle {
    letter-spacing: 0.01em;
}

/* Service cards */
.service-card {
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.4s ease, background-color 0.4s ease;
}

.service-card:hover {
    transform: translateY(-4px);
}

/* Gallery items */
.gallery-item {
    cursor: pointer;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.gallery-item:hover {
    transform: scale(1.02);
}

/* Testimonial cards */
.testimonial-card {
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.4s ease;
}

.testimonial-card:hover {
    transform: translateY(-4px);
    border-color: rgba(13, 148, 136, 0.3);
}

/* Hero animations */
.hero-badge {
    animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.hero-badge {
    animation-delay: 0.1s;
}

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

/* Navbar transition */
.nav-scrolled {
    background: rgba(8, 14, 26, 0.95) !important;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(30, 41, 59, 0.5);
}

.nav-scrolled nav {
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

/* Mobile menu */
.mobile-menu-open {
    opacity: 1 !important;
    pointer-events: all !important;
}

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

::-webkit-scrollbar-track {
    background: var(--color-slate-950);
}

::-webkit-scrollbar-thumb {
    background: var(--color-slate-800);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-teal-600);
}

/* Selection color */
::selection {
    background: rgba(13, 148, 136, 0.3);
    color: white;
}

/* Focus visible styles */
:focus-visible {
    outline: 2px solid var(--color-teal-500);
    outline-offset: 2px;
}

/* Reduced motion preference */
@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;
    }
}