/* ===== BASE & RESET ===== */
*, *::before, *::after {
    box-sizing: border-box;
}

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

body {
    overflow-x: hidden;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: #059669;
    transition: width 0.3s ease;
}

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

#navbar.scrolled {
    background: rgba(254, 253, 248, 0.95);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 20px rgba(6, 78, 59, 0.08);
}

#navbar.scrolled .nav-link {
    color: #064e3b;
}

#navbar.scrolled .font-serif {
    color: #064e3b;
}

#navbar.scrolled span[class*="text-emerald-700"] {
    color: #047857 !important;
}

/* ===== MOBILE MENU ===== */
.mobile-link {
    transition: all 0.3s ease;
}

/* ===== HERO ===== */
#hero {
    scroll-margin-top: 0;
}

/* ===== SERVICE CARDS ===== */
.service-card {
    opacity: 1;
}

/* ===== REVEAL ANIMATIONS ===== */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal[data-revealed="false"] {
    opacity: 0;
    transform: translateY(30px);
}

/* ===== BACK TO TOP ===== */
#back-to-top.visible {
    opacity: 1;
    pointer-events: all;
    transform: translateY(0);
}

#back-to-top {
    transition: opacity 0.3s ease, transform 0.3s ease;
    transform: translateY(10px);
}

#back-to-top:hover {
    transform: translateY(-2px) !important;
}

/* ===== FORM INPUTS ===== */
input:focus,
select:focus,
textarea:focus {
    box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.15);
}

/* ===== REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
    
    .reveal {
        opacity: 1;
        transform: none;
    }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 640px) {
    .font-serif {
        line-height: 1.1;
    }
}