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

html {
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
}

/* Hero Animations */
@keyframes fade-in {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

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

@keyframes slide-up-delay {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slide-up-delay-2 {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes scroll-line {
    0% { opacity: 0; transform: scaleY(0); transform-origin: top; }
    50% { opacity: 1; transform: scaleY(1); transform-origin: top; }
    51% { transform-origin: bottom; }
    100% { opacity: 0; transform: scaleY(0); transform-origin: bottom; }
}

.hero-content > *:first-child {
    animation: fade-in 0.8s ease-out forwards;
}

.hero-content h1 {
    animation: slide-up 0.8s ease-out 0.2s both;
}

.hero-content p {
    animation: slide-up-delay 0.8s ease-out 0.4s both;
}

.hero-content > div:last-child {
    animation: slide-up-delay-2 0.8s ease-out 0.6s both;
}

.hero-scroll-indicator {
    animation: fade-in 1s ease-out 1.2s both;
}

.animate-fade-in {
    animation: fade-in 0.8s ease-out forwards;
}

.animate-slide-up {
    animation: slide-up 0.8s ease-out both;
}

.animate-slide-up-delay {
    animation: slide-up-delay 0.8s ease-out 0.2s both;
}

.animate-slide-up-delay-2 {
    animation: slide-up-delay-2 0.8s ease-out 0.4s both;
}

.animate-scroll-line {
    animation: scroll-line 2s ease-in-out infinite;
}

/* Scroll Reveal */
.scroll-reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

@media (prefers-reduced-motion: no-preference) {
    .scroll-reveal {
        opacity: 0;
        transform: translateY(30px);
    }

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

/* Mobile Menu */
.mobile-link {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease, color 0.2s ease;
}

body.menu-open .mobile-link {
    opacity: 1;
    transform: translateY(0);
}

body.menu-open .mobile-link:nth-child(1) { transition-delay: 0.05s; }
body.menu-open .mobile-link:nth-child(2) { transition-delay: 0.1s; }
body.menu-open .mobile-link:nth-child(3) { transition-delay: 0.15s; }
body.menu-open .mobile-link:nth-child(4) { transition-delay: 0.2s; }

/* Header scroll state */
.site-header.scrolled {
    background: rgba(10, 25, 41, 0.95);
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
}

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

::-webkit-scrollbar-track {
    background: #f0f4f8;
}

::-webkit-scrollbar-thumb {
    background: #627d98;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #486581;
}

/* Focus styles */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
    outline: 2px solid #f59f00;
    outline-offset: 2px;
}

/* Image loading placeholder */
img {
    background-color: #d9e2ec;
}