/* ============================================
   New York Language Institute — Custom Styles
   ============================================ */

/* Base & Typography */
html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', system-ui, sans-serif;
}

.font-serif {
    font-family: 'Playfair Display', Georgia, serif;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #f0fdf4;
}
::-webkit-scrollbar-thumb {
    background: #166534;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #15803d;
}

/* Navbar transition */
.nav-text {
    transition: color 0.4s ease;
}
.nav-subtext {
    transition: color 0.4s ease;
}
.nav-link {
    position: relative;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: #166534;
    transition: width 0.3s ease;
}
.nav-link:hover::after {
    width: 100%;
}

/* Navbar scrolled state handled via JS */
.navbar-scrolled .nav-text {
    color: #052e16;
}
.navbar-scrolled .nav-subtext {
    color: #16a34a;
}

/* Hero scroll indicator animation */
@keyframes scrollLine {
    0% { transform: translateY(-100%); }
    100% { transform: translateY(100%); }
}
.animate-scroll-line {
    animation: scrollLine 1.5s ease-in-out infinite;
}

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

/* Testimonial cards */
.testimonial-card {
    position: relative;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(20, 83, 45, 0.12);
}

/* Mobile menu */
#mobile-menu {
    animation: slideDown 0.3s ease;
}
@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.mobile-nav-link {
    position: relative;
    padding-left: 0;
}
.mobile-nav-link::before {
    content: '';
    position: absolute;
    left: -12px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 100%;
    background: #dcfce7;
    border-radius: 4px;
    transition: width 0.2s ease;
}
.mobile-nav-link:hover::before {
    width: 4px;
}

/* Scroll reveal (progressive enhancement) */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.7s ease, transform 0.7s ease;
    }
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }
    .reveal-delay-4 { transition-delay: 0.4s; }
}

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

/* Responsive adjustments */
@media (max-width: 768px) {
    #hero {
        min-height: auto;
        padding-top: 100px;
        padding-bottom: 60px;
    }
}