/* ─── BASE ─── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { overflow-x: hidden; }

/* ─── NAVBAR SHADOW ON SCROLL ─── */
nav.scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

/* ─── HERO GEOMETRIC SHAPES ─── */
.hero-shape {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}

/* ─── SERVICE CARDS ─── */
.service-card {
    position: relative;
    overflow: hidden;
}
.service-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #0d9488, #2dd4bf);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}
.service-card:hover::after {
    transform: scaleX(1);
}

/* ─── GALLERY ─── */
.gallery-item {
    cursor: pointer;
}

/* ─── SCROLL REVEAL (progressive enhancement) ─── */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.7s ease, transform 0.7s ease;
    }
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }
    .reveal-delay-4 { transition-delay: 0.4s; }
    .reveal-delay-5 { transition-delay: 0.5s; }
    .reveal-delay-6 { transition-delay: 0.6s; }
}

/* ─── TESTIMONIAL CARDS ─── */
.testimonial-card {
    position: relative;
}
.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 16px;
    right: 24px;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 6rem;
    font-weight: 700;
    color: rgba(13, 148, 136, 0.06);
    line-height: 1;
    pointer-events: none;
}

/* ─── BACK TO TOP ─── */
#backToTop.visible {
    opacity: 1;
    pointer-events: auto;
}

/* ─── MOBILE MENU ANIMATION ─── */
#mobileMenu {
    animation: slideDown 0.25s ease;
}
@keyframes slideDown {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ─── RESPONSIVE ─── */
@media (max-width: 767px) {
    .service-card { padding: 1.5rem; }
    .testimonial-card::before { display: none; }
}