/* Shangbo Education — Custom Styles */

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

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: #0a1628;
}
::-webkit-scrollbar-thumb {
    background: #d4a853;
    border-radius: 3px;
}

/* Selection color */
::selection {
    background: #d4a853;
    color: #0a1628;
}

/* Navbar transition */
#navbar {
    transition: background-color 0.4s ease, box-shadow 0.4s ease;
}

#navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.97);
    box-shadow: 0 1px 0 rgba(10, 22, 40, 0.08);
}

/* Mobile menu */
#mobileMenu.open {
    opacity: 1 !important;
    pointer-events: all !important;
}

/* Menu button animation */
.menu-line {
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.menu-btn-active .menu-line:first-child {
    transform: rotate(45deg) translate(3px, 3px);
}
.menu-btn-active .menu-line:last-child {
    opacity: 0;
}

/* Hero content animation */
.hero-content {
    opacity: 1;
    transform: translateY(0);
}

/* Scroll reveal — progressive enhancement */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
    html {
        scroll-behavior: auto;
    }
    * {
        transition-duration: 0.01ms !important;
    }
}

/* Program card hover */
.program-card {
    opacity: 1;
    transform: translateY(0);
}

/* Testimonial card */
.testimonial-card {
    opacity: 1;
    transform: translateY(0);
}

/* Custom select styling */
select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23d4a853' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

/* Thin line accents */
.line-accent {
    width: 48px;
    height: 1px;
    background: #d4a853;
}

/* Nav links underline effect */
.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: #d4a853;
    transition: width 0.3s ease;
}

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

/* Image reveal animation */
.about-image,
.approach-image {
    opacity: 1;
    transform: translateY(0);
}

/* Contact form focus states */
input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: #d4a853 !important;
}

/* Subtle page transitions */
body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}