/* Base */
*, *::before, *::after {
    box-sizing: border-box;
}

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

body {
    overflow-x: hidden;
}

::selection {
    background-color: rgba(13, 148, 136, 0.15);
    color: #0f766e;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: #f8fafc;
}
::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Navbar */
.nav-link {
    position: relative;
    color: rgba(255, 255, 255, 0.7);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: currentColor;
    transition: width 0.3s ease;
}

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

.nav-link:hover {
    color: #fff;
}

/* Navbar scrolled state */
.navbar-scrolled .nav-link {
    color: rgba(30, 41, 59, 0.7);
}

.navbar-scrolled .nav-link:hover {
    color: #1e293b;
}

.navbar-scrolled .nav-link::after {
    background: #1e293b;
}

/* Mobile nav links */
.mobile-nav-link {
    position: relative;
}

/* Hero animations */
.hero-subtitle {
    animation: fadeUp 0.8s ease forwards 0.2s;
}

.hero-title {
    animation: fadeUp 0.8s ease forwards 0.4s;
}

.hero-desc {
    animation: fadeUp 0.8s ease forwards 0.6s;
}

.hero-cta {
    animation: fadeUp 0.8s ease forwards 0.8s;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Reveal animations — progressive enhancement, hidden by default */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* 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;
    }
    
    .reveal {
        opacity: 1;
        transform: none;
    }
    
    .reveal.revealed {
        opacity: 1;
        transform: none;
    }
}

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

/* Image aspect ratio helper */
.aspect-square {
    aspect-ratio: 1 / 1;
}

/* Subtle line decoration */
.line-accent {
    width: 48px;
    height: 1px;
    background: linear-gradient(to right, #0d9488, transparent);
}

/* Hover card lift */
.hover-lift {
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}