/* Custom styles for BRAIN Freeze */

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Blob animations */
@keyframes blob {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -50px) scale(1.1); }
    50% { transform: translate(-20px, 20px) scale(0.9); }
    75% { transform: translate(20px, 50px) scale(1.05); }
}

.animate-blob {
    animation: blob 7s ease-in-out infinite;
}

.animation-delay-2000 {
    animation-delay: 2s;
}

.animation-delay-4000 {
    animation-delay: 4s;
}

/* Float animation */
@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

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

.animation-delay-1000 {
    animation-delay: 1s;
}

.animation-delay-3000 {
    animation-delay: 3s;
}

/* Scroll reveal animations - progressive enhancement */
.reveal-up,
.reveal-left,
.reveal-right {
    opacity: 1;
    transform: none;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

@media (prefers-reduced-motion: no-preference) {
    .reveal-up {
        opacity: 0;
        transform: translateY(30px);
    }
    .reveal-left {
        opacity: 0;
        transform: translateX(-30px);
    }
    .reveal-right {
        opacity: 0;
        transform: translateX(30px);
    }
    .reveal-up.revealed,
    .reveal-left.revealed,
    .reveal-right.revealed {
        opacity: 1;
        transform: none;
    }
}

/* Navbar styles */
#navbar {
    background: transparent;
    transition: background 0.4s ease, backdrop-filter 0.4s ease, box-shadow 0.4s ease;
}

#navbar.scrolled {
    background: rgba(240, 253, 244, 0.9);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 20px rgba(13, 27, 42, 0.08);
}

/* Mobile menu */
#mobile-menu.open {
    opacity: 1;
    pointer-events: auto;
}

#mobile-menu.closed {
    opacity: 0;
    pointer-events: none;
}

/* Bar animation for mobile toggle */
.bar.animate-open:nth-child(1) {
    transform: translateY(4px) rotate(45deg);
}
.bar.animate-open:nth-child(2) {
    opacity: 0;
}
.bar.animate-open:nth-child(3) {
    transform: translateY(-4px) rotate(-45deg);
}

.bar.animate-close:nth-child(1) {
    transform: none;
}
.bar.animate-close:nth-child(2) {
    opacity: 1;
}
.bar.animate-close:nth-child(3) {
    transform: none;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #f0fdf4;
}
::-webkit-scrollbar-thumb {
    background: #86efac;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #4ade80;
}

/* Focus styles */
a:focus-visible,
button:focus-visible {
    outline: 2px solid #10b981;
    outline-offset: 2px;
    border-radius: 4px;
}

/* Selection color */
::selection {
    background: #bbf7d0;
    color: #0d1b2a;
}