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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow-x: hidden;
}

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

@keyframes float-delay {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
}

.floating-card {
    animation: float 4s ease-in-out infinite;
}

.floating-card.animate-float-delay {
    animation: float-delay 4.5s ease-in-out infinite;
    animation-delay: 1s;
}

/* Scroll reveal - progressive enhancement via prefers-reduced-motion */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
    }
    
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Navbar scroll state */
.navbar-scrolled {
    background: rgba(250, 249, 246, 0.92) !important;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 20px rgba(28, 56, 29, 0.08);
}

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

::-webkit-scrollbar-track {
    background: #faf9f6;
}

::-webkit-scrollbar-thumb {
    background: #c5dfc9;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #97c59d;
}

/* Focus styles */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
    outline: 2px solid #478744;
    outline-offset: 2px;
    border-radius: 4px;
}

/* Selection */
::selection {
    background: #c5dfc9;
    color: #1c381d;
}