/* Custom Zen Minimal Styles */

:root {
    --primary-color: #10b981; /* emerald-600 */
    --text-primary: #111827; /* gray-900 */
    --text-secondary: #6b7280; /* gray-600 */
    --bg-light: #f9fafb; /* gray-50 */
    --border-color: #e5e7eb; /* gray-200 */
}

/* Typography & Spacing */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
}

h1, h2, h3 {
    font-weight: 300;
    letter-spacing: 0.02em;
}

p {
    font-weight: 300;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.8s ease-out forwards;
}

.fade-in-delay-1 {
    animation: fadeIn 0.8s ease-out 0.2s forwards;
    opacity: 0;
}

.fade-in-delay-2 {
    animation: fadeIn 0.8s ease-out 0.4s forwards;
    opacity: 0;
}

/* Scroll reveal animation */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

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

/* Class cards subtle hover effect */
.class-card {
    background: white;
}

.class-card:hover {
    background: rgba(16, 185, 129, 0.02);
}

/* Table cell coloring for schedule */
table tbody tr:hover {
    background: rgba(16, 185, 129, 0.05);
}

/* Button hover effects */
button,
a[class*="px-"][class*="py-"][class*="bg-"] {
    transition: all 0.3s ease;
}

/* Minimal focus states for accessibility */
a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Whitespace breathing room */
section {
    margin-bottom: 0;
}

section + section {
    margin-top: 0;
}

/* Header transitions */
header {
    transition: all 0.3s ease;
}

/* Responsive adjustments */
@media (max-width: 640px) {
    h1 {
        font-size: 2.25rem;
    }

    h2 {
        font-size: 1.875rem;
    }

    /* Hide unnecessary table columns on mobile */
    @media (max-width: 768px) {
        table thead th:nth-child(n+4),
        table tbody td:nth-child(n+4) {
            display: none;
        }
    }
}

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

/* Remove default link underline and use color instead */
a {
    text-decoration: none;
    color: inherit;
}

/* Accessibility: high contrast */
body {
    --text-primary: #111827;
    --text-secondary: #4b5563;
    color-scheme: light;
}

/* Print styles (minimal) */
@media print {
    header {
        position: static;
    }
    a[href]:after {
        content: '';
    }
}