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

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

body {
    margin: 0;
    overflow-x: hidden;
}

::selection {
    background: #4ec492;
    color: #040b18;
}

/* ===== Scroll Reveal ===== */
.scroll-reveal {
    opacity: 1;
    transform: none;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

@media (prefers-reduced-motion: no-preference) {
    .scroll-reveal {
        opacity: 0;
        transform: translateY(24px);
    }

    .scroll-reveal.revealed {
        opacity: 1;
        transform: none;
    }

    .scroll-reveal.delay-1 { transition-delay: 0.1s; }
    .scroll-reveal.delay-2 { transition-delay: 0.2s; }
    .scroll-reveal.delay-3 { transition-delay: 0.3s; }
    .scroll-reveal.delay-4 { transition-delay: 0.4s; }
}

/* ===== Header transition ===== */
#site-header {
    background: transparent;
}

#site-header.scrolled {
    background: rgba(255, 255, 255, 0.97);
    backdrop-blur-md;
    box-shadow: 0 1px 0 rgba(10, 22, 40, 0.06);
}

.header-text {
    color: #0a1628;
}

.header-sub {
    color: #1e8a5f;
}

.header-nav {
    color: rgba(10, 22, 40, 0.7);
}

#site-header.scrolled .header-text {
    color: #0a1628;
}

#site-header.scrolled .header-sub {
    color: #1e8a5f;
}

#site-header.scrolled .header-nav {
    color: rgba(10, 22, 40, 0.7);
}

/* ===== Mobile Menu ===== */
.mobile-menu-link {
    display: block;
}

/* ===== Button focus states ===== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid #4ec492;
    outline-offset: 2px;
    border-radius: 2px;
}

/* ===== Subtle animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Print styles ===== */
@media print {
    #site-header,
    #contact-form,
    .scroll-reveal {
        display: none !important;
    }

    body {
        color: #000;
        background: #fff;
    }
}