/* Base & Reset */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

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

/* Navbar transitions */
#navbar.scrolled {
    background: rgba(255, 248, 238, 0.97);
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 30px rgba(10, 22, 40, 0.08);
}

#navbar.scrolled .nav-logo-text {
    color: #0f2140;
}

#navbar.scrolled .nav-link {
    color: #0f2140;
}

#navbar.scrolled .menu-line {
    background: #0f2140;
}

/* Mobile menu */
.mobile-nav-link {
    position: relative;
}

.mobile-nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: #E8A838;
    transition: width 0.3s ease;
}

.mobile-nav-link:hover::after {
    width: 100%;
}

/* Mobile menu open state */
#mobile-menu.open {
    display: block;
    animation: slideDown 0.3s ease;
}

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

/* Mobile menu button active state */
#mobile-menu-btn.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

#mobile-menu-btn.active .menu-line:nth-child(2) {
    opacity: 0;
}

#mobile-menu-btn.active .menu-line:nth-child(3) {
    transform: rotate(-45deg) translate(3px, -3px);
    width: 1.5rem;
}

/* Float animations */
@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(12deg);
    }
    50% {
        transform: translateY(-20px) rotate(12deg);
    }
}

@keyframes float-delayed {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-15px);
    }
}

.animate-float {
    animation: float 6s ease-in-out infinite;
}

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

/* Scroll reveal animations */
.reveal-up,
.reveal-left,
.reveal-right {
    opacity: 1;
    transform: none;
    transition: opacity 0.7s ease, transform 0.7s ease;
}

@media (prefers-reduced-motion: no-preference) {
    .reveal-up {
        opacity: 0;
        transform: translateY(40px);
    }

    .reveal-left {
        opacity: 0;
        transform: translateX(-40px);
    }

    .reveal-right {
        opacity: 0;
        transform: translateX(40px);
    }

    .reveal-up.visible,
    .reveal-left.visible,
    .reveal-right.visible {
        opacity: 1;
        transform: none;
    }
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #FFF8EE;
}

::-webkit-scrollbar-thumb {
    background: #142d58;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #1a3a70;
}

/* Focus styles */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 3px solid #E8A838;
    outline-offset: 2px;
    border-radius: 4px;
}

/* Selection */
::selection {
    background: #E8A838;
    color: #0f2140;
}