/* Base & Utilities */
html {
    scroll-behavior: smooth;
}

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Scroll reveal — progressive enhancement, hidden by default for JS-enhanced mode */
@media (prefers-reduced-motion: no-preference) {
    .scroll-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);
    }
    .scroll-reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Navbar scroll state */
.nav-scrolled {
    background: rgba(253, 251, 247, 0.95) !important;
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(5, 150, 105, 0.08), 0 4px 20px rgba(0, 0, 0, 0.04);
}

/* Floating animation */
@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(1deg); }
}

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

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

.animate-float-delayed {
    animation: float-delayed 5s ease-in-out infinite;
    animation-delay: 1.5s;
}

/* Scroll line animation */
@keyframes scroll-line {
    0% { transform: translateY(-100%); }
    100% { transform: translateY(100%); }
}

.animate-scroll-line {
    animation: scroll-line 1.5s ease-in-out infinite;
}

/* Mobile menu transition */
#mobile-menu {
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Button focus states */
button:focus-visible,
a:focus-visible {
    outline: 2px solid #059669;
    outline-offset: 2px;
    border-radius: inherit;
}

/* Selection color */
::selection {
    background: rgba(5, 150, 105, 0.15);
    color: #022c22;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #FAF5EB;
}
::-webkit-scrollbar-thumb {
    background: #d1d5db;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #9ca3af;
}