/* ========== BASE ========== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { margin: 0; }
img { display: block; max-width: 100%; }
a { text-decoration: none; }
button { cursor: pointer; border: none; background: none; }

/* ========== NAVBAR ========== */
#navbar {
    background: transparent;
    transition: background 0.4s ease, box-shadow 0.4s ease, padding 0.3s ease;
}
#navbar.scrolled {
    background: rgba(20, 49, 37, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
    padding-top: 0;
    padding-bottom: 0;
}
#navbar.scrolled nav {
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
}
.nav-link { position: relative; }

/* ========== MOBILE MENU ========== */
#mobile-menu { transition: opacity 0.3s ease, transform 0.3s ease, pointer-events 0.3s ease; }
#mobile-menu.open { opacity: 1; pointer-events: all; transform: scale(1); }
#mobile-menu.closed { opacity: 0; pointer-events: none; transform: scale(0.96); }
.mobile-link { display: block; }

/* ========== FLOATING CARDS ========== */
.floating-card-1 { animation: float1 6s ease-in-out infinite; }
.floating-card-2 { animation: float2 7s ease-in-out infinite; }
.floating-card-3 { animation: float3 5.5s ease-in-out infinite; }

@keyframes float1 {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-14px) rotate(0.5deg); }
}
@keyframes float2 {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(-0.5deg); }
}
@keyframes float3 {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-12px) rotate(0.3deg); }
}

/* ========== REVEAL ANIMATIONS ========== */
.reveal {
    opacity: 1;
    transform: none;
    transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal[data-reveal-delay="1"] { transition-delay: 0.1s; }
.reveal[data-reveal-delay="2"] { transition-delay: 0.2s; }
.reveal[data-reveal-delay="3"] { transition-delay: 0.3s; }
.reveal[data-reveal-delay="4"] { transition-delay: 0.4s; }
.reveal[data-reveal-delay="5"] { transition-delay: 0.5s; }
.reveal[data-reveal-delay="6"] { transition-delay: 0.6s; }

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

/* ========== RESPONSIVE ========== */
@media (max-width: 767px) {
    .floating-card-1,
    .floating-card-2,
    .floating-card-3 { display: none; }
}

/* ========== SCROLLBAR ========== */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #FDF8F0; }
::-webkit-scrollbar-thumb { background: #1B4332; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #2c4f38; }