/* Premium Variables Setup */
:root {
    --bg-color: #FFFFFF;
    --text-dark: #0F172A;
    --text-muted: #475569;
    --brand-blue: #0066FF;
    --card-bg: #F8FAFC;
    --border-color: #E2E8F0;
    --sidebar-text-active: #0066FF;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    scroll-behavior: smooth; /* Smooth scrolling when section links are clicked */
}

body {
    background-color: var(--bg-color);
    color: var(--text-dark);
    line-height: 1.6;
    padding-bottom: 100px;
}

.container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header Area Styling */
.main-header {
    padding: 80px 24px 40px 24px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 48px;
}

.back-link {
    color: var(--brand-blue);
    text-decoration: none;
    font-size: 15px;
    font-weight: 600;
    display: inline-block;
    margin-bottom: 24px;
}

.split-heading {
    font-size: clamp(32px, 6vw, 48px);
    font-weight: 800;
    letter-spacing: -1.5px;
    margin-bottom: 12px;
}

.split-heading span {
    color: var(--brand-blue);
}

.last-updated {
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: 20px;
}

.header-desc {
    font-size: 18px;
    color: var(--text-muted);
    max-width: 800px;
}

/* Two-Column Responsive Grid Layout */
.layout-wrapper {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
}

@media (min-width: 1024px) {
    .layout-wrapper {
        grid-template-columns: 280px 1fr; /* Sidebar locked on desktop */
    }
}

/* Sidebar Navigation */
.sidebar-nav {
    display: none; /* Hidden on mobile devices */
}

@media (min-width: 1024px) {
    .sidebar-nav {
        display: block;
    }
}

.sticky-box {
    position: sticky;
    top: 40px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.sticky-box h4 {
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-dark);
    margin-bottom: 8px;
    font-weight: 700;
}

.sticky-box a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: color 0.2s;
}

.sticky-box a:hover {
    color: var(--brand-blue);
}

/* Content Frame Blocks */
.content-frame {
    display: flex;
    flex-direction: column;
    gap: 60px;
}

.content-block p {
    font-size: 16px;
    color: var(--text-muted);
    margin-bottom: 16px;
}

/* Inline Headings Meta Structure */
.section-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.section-icon {
    font-size: 24px;
}

.sub-heading {
    font-size: clamp(22px, 4.5vw, 28px);
    font-weight: 700;
    letter-spacing: -0.5px;
}

.sub-heading span {
    color: var(--brand-blue);
}

/* Modern Decorative List */
.custom-list {
    list-style: none;
    padding-left: 4px;
    margin-bottom: 16px;
}

.custom-list li {
    font-size: 15px;
    color: var(--text-muted);
    position: relative;
    padding-left: 24px;
    margin-bottom: 12px;
}

.custom-list li::before {
    content: "✦";
    position: absolute;
    left: 0;
    color: var(--brand-blue);
}

/* Interactive Embedded Cards Grid */
.info-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    margin-top: 20px;
}

@media (min-width: 600px) {
    .info-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.info-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 24px;
    border-radius: 12px;
}

.info-card h5 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.info-card p {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 0;
}

/* Campus Contact Component Box */
.contact-box {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 28px;
    border-radius: 16px;
    margin-top: 24px;
}

.contact-box p {
    font-size: 15px;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.contact-box p:last-child {
    margin-bottom: 0;
}

.contact-box a {
    color: var(--brand-blue);
    text-decoration: none;
    font-weight: 600;
}

.contact-box a:hover {
    text-decoration: underline;
}