/* Base reset & smooth scrolling */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
}

/* Scroll reveal — progressive enhancement, hidden by default */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(20px);
        transition: opacity 0.6s ease, transform 0.6s ease;
    }

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

    /* Stagger children */
    .reveal[data-delay="1"] { transition-delay: 0.1s; }
    .reveal[data-delay="2"] { transition-delay: 0.2s; }
    .reveal[data-delay="3"] { transition-delay: 0.3s; }
}

/* Navbar scroll state */
.navbar-scrolled {
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

/* Mobile menu transitions */
#mobile-menu {
    animation: slideDown 0.2s ease;
}

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

/* Image hover */
img {
    display: block;
    max-width: 100%;
}

/* Focus styles */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid #0d9488;
    outline-offset: 2px;
}

/* Selection */
::selection {
    background: #ccfbf1;
    color: #134e4a;
}