/* ── Base & Typography ── */
html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow-x: hidden;
}

::selection {
    background: #065f46;
    color: #fefcf6;
}

/* ── Hero Gradient ── */
.hero-gradient {
    background: linear-gradient(135deg, #022c22 0%, #064e3b 25%, #047857 50%, #065f46 75%, #022c22 100%);
}

.hero-pattern {
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(16, 185, 129, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(52, 211, 153, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 60% 80%, rgba(6, 79, 70, 0.2) 0%, transparent 40%);
}

/* ── Hero Headline Animation ── */
.hero-headline {
    opacity: 0;
    transform: translateY(30px);
    animation: heroReveal 1s ease-out 0.3s forwards;
}

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

/* ── Scroll Reveal ── */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(40px);
    }
    
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Stagger children */
.service-card {
    opacity: 0;
    transform: translateY(30px);
}

@media (prefers-reduced-motion: no-preference) {
    .service-card {
        transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease;
    }
    
    .service-card.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ── Navbar ── */
#navbar {
    background: transparent;
}

#navbar.scrolled {
    background: rgba(254, 252, 246, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(6, 78, 59, 0.08);
}

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

#navbar.scrolled .nav-link:hover {
    color: #059669;
}

#navbar:not(.scrolled) .nav-link {
    color: #064e3b;
}

#navbar:not(.scrolled) .nav-link:hover {
    color: #047857;
}

/* ── Mobile Menu ── */
#mobile-menu {
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.mobile-menu-link {
    transition: color 0.2s ease;
}

/* ── Service Cards ── */
.service-card {
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease;
}

@media (prefers-reduced-motion: no-preference) {
    .service-card {
        opacity: 0;
        transform: translateY(30px);
    }
    
    .service-card.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ── Smooth focus styles ── */
input:focus,
textarea:focus {
    outline: none;
}

/* ── Accessibility ── */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
    
    .hero-headline {
        opacity: 1;
        transform: none;
    }
    
    .reveal,
    .service-card {
        opacity: 1;
        transform: none;
    }
}