/* === Base & Utilities === */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

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

::selection {
    background-color: rgba(15, 118, 110, 0.2);
    color: #0f3a36;
}

/* === Navbar === */
#navbar {
    background: rgba(255, 255, 255, 0.0);
    backdrop-filter: blur(0px);
    transition: background 0.5s ease, backdrop-filter 0.5s ease, box-shadow 0.5s ease;
}

#navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
}

/* === Nav Links === */
.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: #0F766E;
    transition: width 0.3s ease;
}

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

/* === Mobile Menu === */
#mobile-menu.open {
    opacity: 1;
    pointer-events: all;
}

#mobile-menu.closed {
    opacity: 0;
    pointer-events: none;
}

.menu-line {
    transition: all 0.3s ease;
}

#menu-btn.active .menu-line:nth-child(1) {
    transform: translateY(4px) rotate(45deg);
}

#menu-btn.active .menu-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

#menu-btn.active .menu-line:nth-child(3) {
    transform: translateY(-4px) rotate(-45deg);
    width: 5px;
}

/* === Hero Animations === */
.hero-badge {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 0.2s;
}

.hero-badge {
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 0.2s;
}

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* === Service Cards === */
.service-card {
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

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

/* === Scroll Reveal === */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s 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; }

/* === Image Hover === */
.group:hover .group-hover\:scale-105 {
    transform: scale(1.05);
}

/* === Form Focus === */
input:focus,
textarea:focus,
select:focus {
    outline: none;
}

/* === Smooth image loading === */
img {
    opacity: 1;
    transition: opacity 0.3s ease;
}

/* === Responsive adjustments === */
@media (max-width: 768px) {
    .font-serif {
        line-height: 1.15;
    }
}