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

body {
    overflow-x: hidden;
}

/* Selection color */
::selection {
    background-color: rgba(45, 212, 191, 0.3);
    color: #f0fdf9;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: #0a0f1e;
}
::-webkit-scrollbar-thumb {
    background: rgba(45, 212, 191, 0.3);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(45, 212, 191, 0.5);
}

/* Scroll reveal base - content always visible by default */
.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);
}

/* Only apply hidden state when JS is active (progressive enhancement) */
.js-active .reveal {
    opacity: 0;
    transform: translateY(30px);
}

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

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    .reveal,
    .js-active .reveal,
    .js-active .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
        transition: none;
    }
    html {
        scroll-behavior: auto;
    }
}

/* Thin line separators */
.line-thin {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(45, 212, 191, 0.3), transparent);
}

/* Image hover effect */
img {
    transition: transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* Navbar glass effect */
.nav-scrolled {
    background: rgba(10, 15, 30, 0.95) !important;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

/* Select dropdown styling */
select option {
    background: #0d1525;
    color: #fff;
}

/* Button focus styles */
button:focus-visible,
a:focus-visible {
    outline: 2px solid rgba(45, 212, 191, 0.5);
    outline-offset: 2px;
}

/* Input focus styles */
input:focus,
textarea:focus,
select:focus {
    box-shadow: 0 0 0 1px rgba(45, 212, 191, 0.2);
}