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

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

body {
    overflow-x: hidden;
}

::selection {
    background: #047857;
    color: white;
}

/* ===== NAVIGATION ===== */
.nav {
    background: rgba(254, 253, 248, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(4, 120, 87, 0.08);
}

.nav.scrolled {
    background: rgba(254, 253, 248, 0.97);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.06);
}

.nav-link {
    position: relative;
}

/* ===== MOBILE MENU ===== */
.mobile-menu {
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.mobile-link {
    position: relative;
}

.mobile-menu.open .mobile-link {
    animation: fadeIn 0.3s ease-out forwards;
    opacity: 0;
}

.mobile-menu.open .mobile-link:nth-child(1) { animation-delay: 0.05s; }
.mobile-menu.open .mobile-link:nth-child(2) { animation-delay: 0.1s; }
.mobile-menu.open .mobile-link:nth-child(3) { animation-delay: 0.15s; }
.mobile-menu.open .mobile-link:nth-child(4) { animation-delay: 0.2s; }
.mobile-menu.open .mobile-link:nth-child(5) { animation-delay: 0.25s; }

@keyframes fadeIn {
    to { opacity: 1; }
}

/* ===== HERO ===== */
.hero-grid {
    opacity: 1;
}

.hero-text {
    opacity: 1;
}

.hero-image {
    opacity: 1;
}

/* ===== REVEAL ANIMATIONS ===== */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Service cards */
.service-card {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.service-card.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Testimonial cards */
.testimonial-card {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.testimonial-card.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Area cards */
.area-card {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.5s cubic-bezier(0.22, 1, 0.36, 1), transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

.area-card.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ===== SCROLL REVEAL (progressive enhancement) ===== */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
    }
    
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
    
    .service-card {
        opacity: 0;
        transform: translateY(30px);
    }
    
    .service-card.revealed {
        opacity: 1;
        transform: translateY(0);
    }
    
    .testimonial-card {
        opacity: 0;
        transform: translateY(30px);
    }
    
    .testimonial-card.revealed {
        opacity: 1;
        transform: translateY(0);
    }
    
    .area-card {
        opacity: 0;
        transform: translateY(20px);
    }
    
    .area-card.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== FORM ===== */
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(4, 120, 87, 0.1);
}

.success-message {
    animation: scaleIn 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ===== BUTTONS ===== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid #047857;
    outline-offset: 2px;
    border-radius: 4px;
}

/* ===== IMAGE PLACEHOLDERS ===== */
img {
    display: block;
    max-width: 100%;
}

/* ===== SMOOTH SCROLL OFFSET ===== */
section[id] {
    scroll-margin-top: 80px;
}