/* --- HIGH-END MODERN ACADEMIC PALETTE --- */
:root {
    --primary-green: #064E3B;      /* Deep, rich academic forest green */
    --primary-green-dark: #022c22; /* Midnight green for high-contrast text and dark areas */
    --emerald-vibrant: #10B981;    /* Refined vivid emerald green for interactive focus points */
    --accent-blue: #2563EB;        /* Premium corporate royal blue accent */
    --accent-blue-dark: #1D4ED8;   /* Darker blue variant for hover micro-interactions */
    --accent-blue-light: #F0F5FF;  /* Super soft dynamic blue background tint */
    --text-dark: #0F172A;          /* Crisp charcoal-slate body text */
    --text-muted: #475569;         /* Sophisticated slate gray for sub-captions */
    --border-soft: #E2E8F0;        /* Clean structural card borders */
    --bg-pure: #FFFFFF;            /* Pure white canvas cards */
    --bg-subtle: #F8FAFC;          /* Premium studio-grade ground background surface */
    
    --font-display: 'Plus Jakarta Sans', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Elevation shadow layers */
    --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.05), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
    --shadow-lg: 0 10px 25px -5px rgba(6, 78, 59, 0.08), 0 8px 10px -6px rgba(6, 78, 59, 0.08);
    
    --transition-smooth: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-subtle);
    color: var(--text-dark);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
    font-family: var(--font-display);
    color: var(--primary-green-dark);
    font-weight: 700;
}

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

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

/* --- SUBTLE TOP BAR NOTICE --- */
.top-bar {
    background-color: var(--primary-green);
    color: rgba(255, 255, 255, 0.95);
    font-size: 0.8rem;
    font-weight: 600;
    text-align: center;
    padding: 10px 0;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

/* --- STICKY NAVIGATION BAR --- */
header {
    background-color: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid var(--border-soft);
    backdrop-filter: blur(8px);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 0;
}

.brand-identity-hub {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
}

.portal-logo {
    height: 46px;
    width: auto;
    object-fit: contain;
}

.logo-fallback-text {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--primary-green-dark);
    letter-spacing: -0.02em;
}

.brand-divider {
    width: 1px;
    height: 28px;
    background-color: var(--border-soft);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
    align-items: center;
}

.nav-link {
    font-weight: 600;
    font-size: 0.92rem;
    color: var(--text-muted);
    padding: 6px 0;
    position: relative;
}

.nav-link:hover {
    color: var(--primary-green-dark);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--emerald-vibrant);
    transition: var(--transition-smooth);
}

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

.btn-nav {
    background-color: var(--accent-blue);
    color: var(--bg-pure) !important;
    padding: 10px 22px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.88rem;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.15);
}

.btn-nav:hover {
    background-color: var(--accent-blue-dark);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.25);
}

/* --- HERO REGION --- */
.hero {
    background: linear-gradient(135deg, #022C22 0%, #064E3B 50%, #065F46 100%);
    color: var(--bg-pure);
    padding: 100px 0 140px 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -20%; right: -10%;
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.18) 0%, transparent 70%);
    pointer-events: none;
}

.badge {
    background-color: rgba(255, 255, 255, 0.08);
    color: #D1FAE5;
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    display: inline-block;
    padding: 6px 16px;
    border-radius: 20px;
    margin-bottom: 24px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(4px);
}

.hero h1 {
    color: var(--bg-pure);
    font-size: 3.2rem;
    line-height: 1.15;
    margin-bottom: 20px;
    font-weight: 800;
    letter-spacing: -0.03em;
    max-width: 900px;
}

.hero p {
    color: rgba(248, 250, 252, 0.85);
    font-size: 1.15rem;
    max-width: 820px;
    font-weight: 400;
    line-height: 1.7;
}

/* --- PROFILE EXECUTIVE CARDS SECTION --- */
.about-section {
    background-color: var(--bg-pure);
    border: 1px solid var(--border-soft);
    border-radius: 16px;
    padding: 50px;
    margin-top: -70px;
    position: relative;
    z-index: 10;
    box-shadow: var(--shadow-lg);
    display: grid;
    grid-template-columns: 1.2fr 3fr;
    gap: 50px;
    align-items: flex-start;
}

.about-section h2 {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary-green-dark);
    position: relative;
    padding-bottom: 12px;
    letter-spacing: -0.02em;
}

.about-section h2::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 48px;
    height: 4px;
    background-color: var(--accent-blue);
    border-radius: 4px;
}

.about-content {
    font-size: 1.05rem;
    color: #334155;
    line-height: 1.8;
}

.about-content p {
    margin-bottom: 20px;
}

.about-content p:last-of-type {
    margin-bottom: 0;
}

.about-note-box {
    background-color: #F1F5F9;
    border-left: 4px solid var(--primary-green);
    padding: 22px;
    border-radius: 4px 12px 12px 4px;
    margin-top: 28px;
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.7;
}

/* --- PORTAL UTILITY HUBS GRID --- */
.portal-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 28px;
    padding: 80px 0 100px 0;
}

.portal-card {
    background-color: var(--bg-pure);
    border: 1px solid var(--border-soft);
    border-radius: 14px;
    padding: 36px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, var(--bg-pure) 0%, #FAFAFA 100%);
}

.portal-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background-color: var(--primary-green);
    transition: var(--transition-smooth);
}

.portal-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(6, 78, 59, 0.15);
}

.portal-card:hover::before {
    height: 6px;
    background-color: var(--emerald-vibrant);
}

.portal-card.cbt-highlight {
    background: linear-gradient(180deg, var(--bg-pure) 0%, var(--accent-blue-light) 100%);
}

.portal-card.cbt-highlight::before {
    background-color: var(--accent-blue);
}

.portal-card.cbt-highlight:hover::before {
    background-color: var(--accent-blue-dark);
}

.portal-card h3 {
    font-size: 1.35rem;
    margin-bottom: 16px;
    color: var(--primary-green-dark);
    display: flex;
    align-items: center;
    letter-spacing: -0.01em;
}

.portal-card.cbt-highlight h3 {
    color: #1E3A8A;
}

.cbt-badge {
    background-color: var(--accent-blue);
    color: var(--bg-pure);
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    padding: 3px 10px;
    border-radius: 20px;
    margin-left: 12px;
    letter-spacing: 0.06em;
    box-shadow: 0 2px 6px rgba(37, 99, 235, 0.2);
}

.portal-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 36px;
    line-height: 1.65;
}

.portal-btn {
    font-family: var(--font-display);
    color: var(--primary-green);
    font-weight: 700;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: auto;
    width: fit-content;
}

.portal-btn svg {
    width: 18px;
    height: 18px;
    transition: var(--transition-smooth);
    fill: none;
    stroke: currentColor;
    stroke-width: 2.5;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.portal-card:hover .portal-btn {
    color: var(--accent-blue);
}

.portal-card:hover .portal-btn svg {
    transform: translateX(5px);
}

/* --- FOOTER REGION & INTEGRATED SOCIAL HUB --- */
footer {
    background-color: #02140F;
    color: rgba(241, 245, 249, 0.65);
    padding: 70px 0;
    border-top: 5px solid var(--accent-blue);
}

.footer-flex {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 40px;
}

.footer-left {
    flex: 1.5;
    min-width: 300px;
}

.footer-right {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 20px;
    min-width: 280px;
}

.footer-brand {
    color: var(--bg-pure);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}

.footer-sub {
    font-size: 0.9rem;
    max-width: 650px;
    line-height: 1.6;
    color: #A7F3D0;
    opacity: 0.85;
}

.social-links {
    display: flex;
    gap: 14px;
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: rgba(241, 245, 249, 0.8);
    transition: var(--transition-smooth);
}

.social-icon:hover {
    background-color: var(--accent-blue);
    color: var(--bg-pure);
    border-color: var(--accent-blue);
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.social-icon svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.footer-copy {
    font-size: 0.9rem;
    text-align: right;
    color: rgba(241, 245, 249, 0.5);
}

.footer-credit {
    color: rgba(241, 245, 249, 0.35);
    font-size: 0.78rem;
    margin-top: 4px;
}

/* --- RESPONSIVE MEDIA BREAKPOINTS --- */
@media (max-width: 992px) {
    .about-section { grid-template-columns: 1fr; gap: 32px; padding: 36px; }
    .about-section h2 { white-space: normal; }
}

@media (max-width: 768px) {
    .nav-menu { display: none; }
    .hero h1 { font-size: 2.25rem; }
    .hero { padding: 70px 0 100px 0; }
    .portal-grid { grid-template-columns: 1fr; gap: 24px; padding-top: 50px; }
    .footer-flex { flex-direction: column; align-items: flex-start; gap: 32px; }
    .footer-right { align-items: flex-start; width: 100%; }
    .footer-copy { text-align: left; }
}