html { scroll-behavior: smooth; }
::selection { background: #DC2626; color: #F8F7F4; }

.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1), transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.12s; }
.reveal-delay-2 { transition-delay: 0.24s; }
.reveal-delay-3 { transition-delay: 0.36s; }
.reveal-delay-4 { transition-delay: 0.48s; }

.hero-line {
    overflow: hidden;
}
.hero-line span {
    display: inline-block;
    transform: translateY(110%);
    animation: lineReveal 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
.hero-line:nth-child(2) span { animation-delay: 0.15s; }
.hero-line:nth-child(3) span { animation-delay: 0.3s; }
@keyframes lineReveal {
    to { transform: translateY(0); }
}

.horizontal-scroll {
    display: flex;
    gap: 2rem;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 2rem;
    scroll-behavior: smooth;
}
.horizontal-scroll::-webkit-scrollbar { display: none; }
.project-card {
    scroll-snap-align: start;
    flex-shrink: 0;
}
.scroll-btn {
    transition: background 0.3s ease, transform 0.3s ease, opacity 0.3s ease;
}
.scroll-btn:hover {
    background: #DC2626;
    transform: scale(1.1);
}
.scroll-btn:hover svg {
    color: #F8F7F4;
}
.scroll-btn:disabled {
    opacity: 0.3;
    cursor: default;
}
.scroll-btn:disabled:hover {
    background: rgba(255,255,255,0.1);
    transform: none;
}

.project-card .card-img {
    transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.project-card:hover .card-img {
    transform: scale(1.04);
}
.project-card .card-overlay {
    opacity: 0;
    transition: opacity 0.4s ease;
}
.project-card:hover .card-overlay {
    opacity: 1;
}
.project-card .card-number {
    transition: color 0.4s ease;
}
.project-card:hover .card-number {
    color: #DC2626;
}

@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}
.marquee-track {
    animation: marquee 30s linear infinite;
}
.marquee-track:hover {
    animation-play-state: paused;
}

.diagonal-line {
    width: 1px;
    height: 80px;
    background: #DC2626;
    transform: rotate(30deg);
    transform-origin: top center;
}

.nav-scrolled {
    background: rgba(248, 247, 244, 0.97) !important;
    backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}
.nav-scrolled .nav-link {
    color: rgba(0, 0, 0, 0.6) !important;
}
.nav-scrolled .nav-link:hover {
    color: #000 !important;
}
.nav-scrolled .menu-bar {
    background: #000 !important;
}

.mobile-menu {
    clip-path: inset(0 0 100% 0);
    transition: clip-path 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}
.mobile-menu.open {
    clip-path: inset(0 0 0 0);
}

.link-hover {
    position: relative;
}
.link-hover::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: currentColor;
    transition: width 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.link-hover:hover::after {
    width: 100%;
}

.stat-border {
    position: relative;
}
.stat-border::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: #DC2626;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
.stat-border.visible::before {
    transform: scaleX(1);
}

.service-img-wrap {
    overflow: hidden;
    position: relative;
}
.service-img-wrap img {
    object-fit: cover;
    width: 100%;
    height: 100%;
    display: block;
    transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.project-card:hover .service-img-wrap img {
    transform: scale(1.04);
}

/* Dropdown nav */
.nav-dropdown {
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
}
.nav-dropdown-trigger:hover .nav-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Service sub-page hero */
.service-hero {
    position: relative;
    min-height: 50vh;
    display: flex;
    align-items: center;
}
.service-hero-img {
    position: absolute;
    inset: 0;
}
.service-hero-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.35;
}