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

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

body {
    overflow-x: hidden;
}

/* Scroll reveal animations */
.scroll-reveal {
    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);
}

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

.scroll-reveal:nth-child(2) { transition-delay: 0.1s; }
.scroll-reveal:nth-child(3) { transition-delay: 0.2s; }
.scroll-reveal:nth-child(4) { transition-delay: 0.3s; }

/* Hero animations */
.hero-subtitle {
    animation: fadeUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.3s forwards;
}

.hero-title {
    animation: fadeUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.5s forwards;
}

.hero-desc {
    animation: fadeUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.7s forwards;
}

.hero-cta {
    animation: fadeUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.9s forwards;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scroll indicator */
@keyframes scrollDot {
    0% { transform: translateY(0); opacity: 1; }
    100% { transform: translateY(12px); opacity: 0; }
}

.scroll-indicator {
    animation: scrollBounce 2s ease-in-out infinite;
}

@keyframes scrollBounce {
    0%, 100% { transform: translate(-50%, 0); }
    50% { transform: translate(-50%, 8px); }
}

/* Section labels */
.section-label {
    letter-spacing: 0.2em;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: #f87171;
    transition: width 0.3s ease;
}

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

/* Service card hover */
.service-card {
    transition: background-color 0.3s ease;
}

.service-card:hover {
    background-color: #fafafa;
}

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

/* Input focus styles */
input:focus, textarea:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(248, 113, 113, 0.1);
}

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

::-webkit-scrollbar-track {
    background: #f6f6f7;
}

::-webkit-scrollbar-thumb {
    background: #c4c5c9;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a1a3aa;
}

/* Selection */
::selection {
    background: rgba(248, 113, 113, 0.2);
    color: #1f2937;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    html {
        scroll-padding-top: 70px;
    }
}