/* === Base & Utilities === */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    overflow-x: hidden;
}

::selection {
    background-color: #C0704A;
    color: white;
}

/* === Scroll Reveal Animations === */
.reveal-up,
.reveal-left,
.reveal-right {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-left {
    transform: translateX(-30px);
}

.reveal-right {
    transform: translateX(30px);
}

.reveal-up.visible,
.reveal-left.visible,
.reveal-right.visible {
    opacity: 1;
    transform: translate(0, 0);
}

/* Staggered delays for child elements */
.service-card:nth-child(1) { transition-delay: 0.05s; }
.service-card:nth-child(2) { transition-delay: 0.1s; }
.service-card:nth-child(3) { transition-delay: 0.15s; }
.service-card:nth-child(4) { transition-delay: 0.2s; }
.service-card:nth-child(5) { transition-delay: 0.25s; }
.service-card:nth-child(6) { transition-delay: 0.3s; }

/* === Scroll Indicator Animation === */
@keyframes scrollLine {
    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-scroll-line {
    animation: scrollLine 1.8s ease-in-out infinite;
}

/* === Navbar === */
.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #C0704A;
    transition: width 0.3s ease;
    border-radius: 1px;
}

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

/* === Mobile Menu === */
.menu-line {
    display: block;
}

#mobile-menu.open .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

#mobile-menu.open .menu-line:nth-child(2) {
    opacity: 0;
}

#mobile-menu.open .menu-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
    width: 1.25rem;
}

/* === Service Cards === */
.service-card {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* === Custom Select === */
select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%239C9388' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%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;
}

/* === Focus Styles === */
input:focus,
textarea:focus,
select:focus {
    outline: none;
}

/* === Smooth image loading === */
img {
    image-rendering: auto;
}

/* === Responsive Adjustments === */
@media (max-width: 767px) {
    html {
        scroll-padding-top: 70px;
    }
    
    .font-display {
        word-spacing: -0.02em;
    }
}

@media (min-width: 768px) and (max-width: 1023px) {
    .service-card {
        opacity: 1;
        transform: none;
    }
}