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

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

::selection {
    background: rgba(4, 120, 87, 0.2);
    color: #064e3b;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: #ecfdf5;
}
::-webkit-scrollbar-thumb {
    background: #a7f3d0;
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: #6ee7b7;
}

/* Navbar */
#navbar {
    background: transparent;
    transition: background 0.5s ease, backdrop-filter 0.5s ease, box-shadow 0.5s ease;
}

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

.nav-logo {
    transition: color 0.3s ease;
}

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

/* Mobile Menu */
.mobile-link {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

#mobile-menu.open .mobile-link {
    opacity: 1;
    transform: translateY(0);
}

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

/* Hero Gradient */
.hero-gradient {
    background: linear-gradient(135deg, #022c22 0%, #064e3b 25%, #047857 50%, #059669 75%, #10b981 100%);
}

.hero-pattern {
    background-image: radial-gradient(circle at 25% 25%, rgba(255,255,255,0.03) 1px, transparent 1px),
                      radial-gradient(circle at 75% 75%, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 60px 60px, 40px 40px;
}

/* Hero Animations */
.hero-subtitle {
    opacity: 0;
    animation: heroFadeUp 0.8s ease forwards;
    animation-delay: 0.2s;
}

.hero-headline {
    opacity: 0;
    animation: heroFadeUp 0.8s ease forwards;
    animation-delay: 0.4s;
}

.hero-desc {
    opacity: 0;
    animation: heroFadeUp 0.8s ease forwards;
    animation-delay: 0.6s;
}

.hero-ctas {
    opacity: 0;
    animation: heroFadeUp 0.8s ease forwards;
    animation-delay: 0.8s;
}

@keyframes heroFadeUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scroll Line */
.scroll-line {
    animation: scrollDown 1.5s ease-in-out infinite;
}

@keyframes scrollDown {
    0% { transform: translateY(-100%); }
    100% { transform: translateY(400%); }
}

/* Reveal Animations (progressive enhancement) */
@media (prefers-reduced-motion: no-preference) {
    .reveal-section {
        opacity: 1;
        transform: translateY(0);
        transition: opacity 0.8s ease, transform 0.8s ease;
    }

    .reveal-card {
        opacity: 1;
        transform: translateY(0);
        transition: opacity 0.6s ease, transform 0.6s ease;
    }
}

@media (prefers-reduced-motion: reduce) {
    .reveal-section,
    .reveal-card {
        opacity: 1 !important;
        transform: none !important;
        transition: none !important;
    }

    .hero-subtitle,
    .hero-headline,
    .hero-desc,
    .hero-ctas {
        opacity: 1 !important;
        animation: none !important;
    }
}

/* About Pattern */
.about-pattern {
    background-image: radial-gradient(circle at 1px 1px, rgba(255,255,255,0.08) 1px, transparent 0);
    background-size: 40px 40px;
}

/* CTA Pattern */
.cta-pattern {
    background-image: radial-gradient(circle at 1px 1px, rgba(255,255,255,0.06) 1px, transparent 0);
    background-size: 32px 32px;
}

/* Form Focus States */
input:focus,
textarea:focus {
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

/* Image hover container */
.reveal-card {
    overflow: hidden;
}

.reveal-card img {
    display: block;
}

/* Service card divider lines */
.service-card {
    position: relative;
}

/* Print styles */
@media print {
    #navbar,
    .scroll-line {
        display: none;
    }
    body {
        background: white;
        color: black;
    }
}