/* ========== BASE ========== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 5rem; }
body { margin: 0; }

/* ========== NAV ========== */
#navbar { height: 72px; }
#navbar.scrolled { box-shadow: 0 1px 20px rgba(192, 96, 58, 0.08); }
.nav-link { position: relative; }
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: #C0603A;
    border-radius: 1px;
    transition: width 0.25s ease;
}
.nav-link:hover::after { width: 100%; }
.mobile-link { position: relative; }

/* ========== MOBILE MENU ========== */
#mobileMenu { animation: slideDown 0.3s ease; }
@keyframes slideDown {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}
#mobileMenu.open { display: block; }
#mobileMenu.hidden { display: none; }

/* ========== FLOAT ANIMATIONS ========== */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
}
@keyframes floatDelayed {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-6px); }
}
.animate-float { animation: float 3.5s ease-in-out infinite; }
.animate-float-delayed { animation: floatDelayed 4s ease-in-out 1s infinite; }

/* ========== SCROLL REVEAL (progressive enhancement) ========== */
.reveal {
    opacity: 1;
    transform: none;
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
    }
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========== CARD HOVER ========== */
.card { transform: translateY(0); }
@media (prefers-reduced-motion: no-preference) {
    .card:hover { transform: translateY(-4px); }
}

/* ========== SCROLLBAR ========== */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #fdf8ec; }
::-webkit-scrollbar-thumb { background: #e0a855; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #c98a3a; }

/* ========== SELECTION ========== */
::selection { background: #f3b5a6; color: #5e2c1e; }