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

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

body {
    overflow-x: hidden;
}

/* Smooth scroll for anchor links */
@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}

/* Floating card animations */
@keyframes float1 {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-12px); }
}

@keyframes float2 {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-8px) rotate(-1deg); }
}

@keyframes float3 {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.card-float-1 {
    animation: float1 6s ease-in-out infinite;
}

.card-float-2 {
    animation: float2 5s ease-in-out infinite;
    animation-delay: -1.5s;
}

.card-float-3 {
    animation: float3 7s ease-in-out infinite;
    animation-delay: -3s;
}

/* Scroll reveal animations — progressive enhancement only */
.reveal {
    opacity: 1;
    transform: none;
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.revealed {
    opacity: 0;
    transform: translateY(30px);
}

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

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

    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }
    .reveal-delay-4 { transition-delay: 0.4s; }
}

/* Navbar state */
.nav-scrolled #nav-inner {
    background: rgba(253, 252, 250, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 4px 30px rgba(45, 90, 61, 0.08);
    border: 1px solid rgba(227, 237, 230, 0.6);
}

.nav-scrolled .nav-link {
    color: #2D5A3D;
}

.nav-scrolled .nav-link:hover {
    background: rgba(45, 90, 61, 0.08);
}

/* Mobile menu */
.mobile-menu-open #mobile-menu {
    opacity: 1;
    pointer-events: all;
}

.mobile-menu-open body {
    overflow: hidden;
}

.mobile-link {
    transition: opacity 0.3s ease, transform 0.3s ease;
}

/* Focus styles */
a:focus-visible, button:focus-visible {
    outline: 2px solid #2D5A3D;
    outline-offset: 2px;
    border-radius: 4px;
}

/* Selection color */
::selection {
    background: rgba(45, 90, 61, 0.2);
    color: #1C3526;
}

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

::-webkit-scrollbar-track {
    background: #F5F0E8;
}

::-webkit-scrollbar-thumb {
    background: #C5DBCA;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #96C0A0;
}