*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    overflow-x: hidden;
}

::selection {
    background: #065f46;
    color: #f5f0e8;
}

/* Hero animations — above the fold, always visible */
@keyframes fade-down {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes fade-up {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes scroll-line {
    0% { transform: scaleY(0); transform-origin: top; }
    50% { transform: scaleY(1); transform-origin: top; }
    51% { transform-origin: bottom; }
    100% { transform: scaleY(0); transform-origin: bottom; }
}

.animate-fade-down {
    animation: fade-down 0.9s ease both;
}
.animate-fade-up {
    animation: fade-up 0.9s ease both;
}
.animate-fade-up-delay {
    animation: fade-up 0.9s 0.2s ease both;
}
.animate-fade-up-delay-2 {
    animation: fade-up 0.9s 0.4s ease both;
}
.animate-scroll-line {
    animation: scroll-line 2s ease-in-out infinite;
}

/* Scroll reveal — progressive enhancement, only below fold */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(28px);
        transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                    transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
    .reveal:nth-child(2) { transition-delay: 0.1s; }
    .reveal:nth-child(3) { transition-delay: 0.2s; }
    .reveal:nth-child(4) { transition-delay: 0.3s; }
}

/* Fallback: if JS is disabled, all reveals are visible */
.no-js .reveal,
.js-enabled:not(.reveal.revealed) {
    /* JS-enabled: hidden until intersection observer fires */
}

/* Header */
#site-header {
    background: transparent;
}
#site-header.scrolled {
    background: rgba(6, 78, 59, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(255,255,255,0.05);
}

/* Mobile menu */
#mobile-menu.open {
    opacity: 1;
    pointer-events: all;
}
#mobile-menu.open #bar-top {
    transform: rotate(45deg) translate(3px, 3px);
}
#mobile-menu.open #bar-mid {
    opacity: 0;
}
#mobile-menu.open #bar-bot {
    transform: rotate(-45deg) translate(3px, -3px);
    width: 1.5rem;
}

/* Service lines */
.service-line:last-child .flex {
    border-bottom: none;
}

/* Smooth image loading */
img {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: #f5f0e8;
}
::-webkit-scrollbar-thumb {
    background: #065f46;
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: #047857;
}