/* assets/css/style.css */
:root {
    --color-primary: #0B251F;
    --color-primary-light: #163B32;
    --color-accent: #C59B27;
    --color-accent-hover: #A37E1C;
    --color-text: #1E293B;
    --color-text-muted: #64748B;
    --color-bg: #F8FAF9;
    --color-card-bg: #FFFFFF;
    --color-border: #E2E8F0;
    --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
    --shadow-md: 0 8px 24px rgba(0,0,0,0.08);
    --shadow-lg: 0 16px 40px rgba(0,0,0,0.12);
    --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    --max-width: 1320px;
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.skip-to-content {
    position: absolute;
    top: -100px;
    left: 1rem;
    background: var(--color-accent);
    color: #fff;
    padding: 0.75rem 1.5rem;
    z-index: 10000;
    border-radius: var(--radius-sm);
}

.skip-to-content:focus {
    top: 1rem;
}

/* Header & Nav */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: #fff;
    box-shadow: var(--shadow-sm);
}

.header-top-bar {
    background: var(--color-primary);
    color: #E2E8F0;
    font-size: 0.85rem;
    padding: 0.5rem 0;
}

.top-bar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.timing-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.timing-badge svg {
    width: 16px;
    height: 16px;
    stroke: var(--color-accent);
}

.main-navigation-wrapper {
    background: #fff;
    border-bottom: 1px solid var(--color-border);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-mark {
    background: var(--color-primary);
    color: var(--color-accent);
    font-weight: 800;
    font-size: 1.25rem;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    letter-spacing: 1px;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.institution-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.portal-name {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: -0.5px;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 1.5rem;
}

.nav-link {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--color-text);
    padding: 0.5rem 0;
    position: relative;
}

.nav-link:hover, .nav-link.active {
    color: var(--color-accent);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--color-accent);
    border-radius: 2px;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
}

.hamburger-bar {
    width: 25px;
    height: 3px;
    background: var(--color-primary);
    border-radius: 2px;
}

/* Footer Styling */
.site-footer {
    background: var(--color-primary);
    color: #CBD5E1;
    padding-top: 4rem;
    margin-top: 5rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 3rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-inst {
    display: block;
    font-size: 0.85rem;
    color: var(--color-accent);
    font-weight: 600;
}

.footer-portal {
    display: block;
    font-size: 1.5rem;
    color: #fff;
    font-weight: 800;
    margin-bottom: 1rem;
}

.footer-desc {
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.footer-timing-card {
    background: var(--color-primary-light);
    padding: 1rem;
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--color-accent);
}

.footer-title {
    color: #fff;
    font-size: 1.1rem;
    margin-bottom: 1.25rem;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a:hover {
    color: var(--color-accent);
    padding-left: 4px;
}

.footer-bottom {
    padding: 1.5rem 0;
    font-size: 0.85rem;
    text-align: center;
    background: rgba(0,0,0,0.2);
}

/* Mobile Breakpoints */
@media (max-width: 992px) {
    .mobile-menu-toggle { display: flex; }
    .primary-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: #fff;
        padding: 1.5rem;
        box-shadow: var(--shadow-md);
    }
    .primary-nav.is-open { display: block; }
    .nav-list { flex-direction: column; gap: 1rem; }
    .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
    .top-bar-inner { flex-direction: column; gap: 0.5rem; }
}