/* Base & Typography */
html {
    scroll-behavior: smooth;
}

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #f1f5f9;
}
::-webkit-scrollbar-thumb {
    background: #94a3b8;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #64748b;
}

/* Navigation */
.nav-scrolled {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: #0d9488;
    transition: width 0.2s ease;
}

.nav-link:hover::after {
    width: 100%;
}

/* Mobile Menu */
.mobile-nav-link {
    transition: color 0.2s ease, transform 0.2s ease;
}

.mobile-nav-link:hover {
    color: #0d9488;
    transform: translateY(-2px);
}

/* Hero */
.hero-section {
    position: relative;
}

.scroll-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 2px solid rgba(148, 163, 184, 0.3);
    border-radius: 50%;
    transition: border-color 0.2s ease;
}

.scroll-indicator:hover {
    border-color: rgba(45, 212, 191, 0.6);
}

/* Service Cards */
.service-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.service-card:hover {
    transform: translateY(-4px);
}

/* Process Steps */
.process-step {
    position: relative;
}

.process-step::after {
    content: '';
    position: absolute;
    top: 24px;
    right: -24px;
    width: 48px;
    height: 2px;
    background: linear-gradient(to right, rgba(45, 212, 191, 0.4), transparent);
    display: none;
}

@media (min-width: 1024px) {
    .process-step:not(:last-child)::after {
        display: block;
    }
}

/* Gallery */
.gallery-item {
    cursor: pointer;
    position: relative;
}

.gallery-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.2), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
    border-radius: inherit;
}

.gallery-item:hover::after {
    opacity: 1;
}

/* Scroll Reveal (progressive enhancement) */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 0.6s ease, transform 0.6s 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; }
}

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

/* Print */
@media print {
    .nav-scrolled, .scroll-indicator {
        display: none;
    }
}