/* Base styles & custom properties */
:root {
    --color-teal-50: #f0fdfa;
    --color-teal-600: #0d9488;
    --color-teal-700: #0f766e;
    --color-slate-900: #0f172a;
}

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

body {
    overflow-x: hidden;
}

/* Scroll reveal - progressive enhancement, works without JS */
.scroll-reveal {
    opacity: 1;
    transform: none;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

@media (prefers-reduced-motion: no-preference) {
    .scroll-reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
    
    .scroll-reveal:not(.revealed) {
        opacity: 0;
        transform: translateY(24px);
    }
}

/* Navbar scroll state */
.navbar-scrolled {
    background: rgba(255, 255, 255, 0.97) !important;
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 4px 24px rgba(0, 0, 0, 0.04);
}

.navbar-scrolled .nav-logo-text {
    color: #0f172a !important;
}

.navbar-scrolled a:not(.mobile-link):not([class*="bg-"]):not([class*="text-white"]) {
    color: #334155 !important;
}

.navbar-scrolled a:not(.mobile-link):not([class*="bg-"]):not([class*="text-white"]):hover {
    color: #0d9488 !important;
}

/* Selection color */
::selection {
    background: #0d9488;
    color: white;
}

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

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

::-webkit-scrollbar-thumb {
    background: #94a3b8;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #64748b;
}

/* Focus styles */
*:focus-visible {
    outline: 2px solid #0d9488;
    outline-offset: 2px;
}

/* Mobile menu animation */
#mobileMenu {
    animation: slideDown 0.25s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Button ripple effect */
button, a {
    position: relative;
    overflow: hidden;
}

/* Image loading placeholder */
img {
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
}

/* Form input autofill */
input:-webkit-autofill,
textarea:-webkit-autofill,
select:-webkit-autofill {
    -webkit-box-shadow: 0 0 0 30px white inset !important;
}