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

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

::selection {
    background: #166534;
    color: #fefef7;
}

/* === Navbar === */
#navbar {
    background: rgba(254, 254, 247, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(22, 101, 52, 0.06);
}

#navbar.scrolled {
    background: rgba(254, 254, 247, 0.95);
    box-shadow: 0 1px 20px rgba(22, 101, 52, 0.06);
}

/* === Mobile Menu === */
.mobile-link {
    position: relative;
}

.mobile-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: #166534;
    transition: width 0.3s ease;
}

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

/* === Service Cards === */
.service-card {
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, #166534, #4ade80);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s ease;
}

.service-card:hover::before {
    transform: scaleX(1);
}

/* === Area Items === */
.area-item {
    cursor: default;
}

/* === Scroll Reveal (progressive enhancement) === */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: opacity 0.8s ease, transform 0.8s ease;
    }

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

    .reveal[data-delay="1"] { transition-delay: 0.1s; }
    .reveal[data-delay="2"] { transition-delay: 0.2s; }
    .reveal[data-delay="3"] { transition-delay: 0.3s; }
    .reveal[data-delay="4"] { transition-delay: 0.4s; }
    .reveal[data-delay="5"] { transition-delay: 0.5s; }
}

/* Reduced motion fallback */
@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
    }
}

/* === Custom scrollbar === */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #fefef7;
}

::-webkit-scrollbar-thumb {
    background: #bbf7d0;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #86efac;
}

/* === Form select arrow === */
select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23166534' stroke-width='1.5'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

/* === Floating card animations === */
@keyframes float-slow {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
}

@keyframes float-medium {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-5px); }
}

@keyframes float-fast {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

@media (prefers-reduced-motion: no-preference) {
    .float-slow { animation: float-slow 6s ease-in-out infinite; }
    .float-medium { animation: float-medium 5s ease-in-out infinite; }
    .float-fast { animation: float-fast 4s ease-in-out infinite; }
}

/* === Subtle line decorations === */
.deco-line {
    width: 40px;
    height: 1px;
    background: linear-gradient(90deg, #166534, transparent);
}