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

body {
    overflow-x: hidden;
}

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

@keyframes float-2 {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
}

@keyframes float-3 {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    50% { transform: translate(5px, -12px) rotate(1deg); }
}

.float-card-1 { animation: float-1 4s ease-in-out infinite; }
.float-card-2 { animation: float-2 5s ease-in-out infinite 0.5s; }
.float-card-3 { animation: float-3 6s ease-in-out infinite; }

/* Scroll reveal */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* Navbar scroll state */
#navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.08);
}

#navbar.scrolled .nav-logo-text {
    color: #1C1C21 !important;
}

#navbar.scrolled .nav-link {
    color: #52525B !important;
}

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

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #F5F5F7;
}
::-webkit-scrollbar-thumb {
    background: #D1D1D8;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #A1A1AA;
}

/* Focus styles */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
    outline: 2px solid #FF5733;
    outline-offset: 2px;
}

/* Responsive adjustments */
@media (max-width: 640px) {
    .float-card-1 { position: relative !important; top: auto !important; left: auto !important; margin-bottom: 1rem; }
    .float-card-2 { position: relative !important; bottom: auto !important; right: auto !important; }
}