:root {
    --primary-dark: #11291c;
    --primary-light: #234231;
    --accent-gold: #c2a679;
    --accent-gold-hover: #b19366;
    --nature-bg: #fbfcfb;
    --card-white: #ffffff;
    --text-dark: #1e2621;
    --text-muted: #59665e;
    --border-subtle: rgba(17, 41, 28, 0.06);
    --shadow-premium: 0 20px 40px rgba(17, 41, 28, 0.06);
    --transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    background-color: var(--nature-bg);
    color: var(--text-dark);
    line-height: 1.7;
    overflow-x: hidden;
}

.ambient-glow {
    position: absolute;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, rgba(194, 166, 121, 0.05) 0%, rgba(255,255,255,0) 70%);
    top: -20vw;
    right: -10vw;
    z-index: -1;
    pointer-events: none;
}

nav {
    padding: 1.5rem 8%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(251, 252, 251, 0.9);
    backdrop-filter: blur(20px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-subtle);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 14px;
    text-decoration: none;
}

.main-logo {
    width: 70px;
    height: 70px;
    object-fit: contain;
    background: white;
    padding: 8px;
    border-radius: 18px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}

.logo-main {
    font-family: 'Cinzel', serif;
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: 2px;
    color: var(--primary-dark);
    display: block;
}

.logo-sub {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 4px;
    color: var(--accent-gold);
    font-weight: 700;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--accent-gold);
}

.cta-btn {
    background-color: var(--primary-dark);
    color: #fff !important;
    padding: 0.8rem 1.6rem;
    border-radius: 10px;
    font-size: 0.85rem;
    box-shadow: 0 10px 25px rgba(17,41,28,0.2);
}

.cta-btn:hover {
    background: var(--accent-gold);
    transform: translateY(-3px);
}

header {
    max-width: 1450px;
    margin: 0 auto;
    padding: 8rem 8% 7rem;
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 5rem;
    align-items: center;
    position: relative;
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        linear-gradient(rgba(255,255,255,0.9), rgba(255,255,255,0.93)),
        url('https://images.unsplash.com/photo-1576091160399-112ba8d25d1d?q=80&w=1600&auto=format&fit=crop');
    background-size: cover;
    background-position: center;
    z-index: -2;
    border-radius: 0 0 40px 40px;
}

header::after {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(194,166,121,0.2) 0%, transparent 70%);
    top: -100px;
    right: -100px;
    z-index: -1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(194,166,121,0.12);
    color: var(--primary-dark);
    padding: 0.5rem 1rem;
    border-radius: 40px;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 2rem;
}

.hero-badge span {
    width: 8px;
    height: 8px;
    background: var(--accent-gold);
    border-radius: 50%;
}

h1 {
    font-family: 'Cinzel', serif;
    font-size: 4rem;
    line-height: 1.15;
    color: var(--primary-dark);
    margin-bottom: 2rem;
}

h1 span {
    color: var(--accent-gold);
}

.hero-description {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 3rem;
    max-width: 620px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.stat-item {
    background: rgba(255,255,255,0.7);
    padding: 1.5rem;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.7);
    box-shadow: 0 10px 30px rgba(17,41,28,0.04);
}

.stat-item h3 {
    font-family: 'Cinzel', serif;
    font-size: 2rem;
    color: var(--primary-dark);
}

.stat-item p {
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 1px;
    color: var(--text-muted);
}

.hero-image-wrapper {
    margin-bottom: 2rem;
    border-radius: 30px;
    overflow: hidden;
    box-shadow: 0 30px 70px rgba(17,41,28,0.15);
}

.hero-image {
    width: 100%;
    height: 340px;
    object-fit: cover;
    transition: transform 0.8s ease;
}

.hero-image:hover {
    transform: scale(1.05);
}

.hero-visual-panel {
    background: linear-gradient(135deg, #11291c, #1d3b2a);
    border-radius: 24px;
    padding: 3rem;
    color: white;
    position: relative;
    overflow: hidden;
    box-shadow: 0 30px 70px rgba(17,41,28,0.25);
}

.hero-visual-panel::before {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(194,166,121,0.15) 0%, transparent 70%);
    top: -120px;
    right: -120px;
}

.panel-tag {
    color: var(--accent-gold);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 2px;
    margin-bottom: 1rem;
    font-weight: 700;
}

.panel-title {
    font-family: 'Cinzel', serif;
    font-size: 1.8rem;
    margin-bottom: 2rem;
}

.panel-row {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    font-size: 0.9rem;
}

.panel-row span:last-child {
    color: var(--accent-gold);
    font-weight: 700;
}

.divisions-section {
    padding: 7rem 8%;
    background: white;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 5rem;
}

.section-label {
    color: var(--accent-gold);
    text-transform: uppercase;
    letter-spacing: 3px;
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 1rem;
    display: block;
}

.section-main-title {
    font-family: 'Cinzel', serif;
    font-size: 2.5rem;
    color: var(--primary-dark);
}

.divisions-grid {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 2rem;
}

.division-card {
    padding: 3rem 2.5rem;
    background: linear-gradient(145deg, #ffffff, #f7faf8);
    border-radius: 24px;
    border: 1px solid rgba(194,166,121,0.15);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(17,41,28,0.04);
}

.division-card::before {
    content: '';
    position: absolute;
    width: 180px;
    height: 180px;
    background: radial-gradient(circle, rgba(194,166,121,0.12) 0%, transparent 70%);
    top: -60px;
    right: -60px;
}

.division-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 30px 60px rgba(17,41,28,0.08);
}

.division-icon {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.division-card h3 {
    font-family: 'Cinzel', serif;
    margin-bottom: 1rem;
    color: var(--primary-dark);
}

.division-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.research-section {
    max-width: 1400px;
    margin: auto;
    padding: 7rem 8%;
}

.filter-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4rem;
    flex-wrap: wrap;
    gap: 2rem;
}

.filter-cluster {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.filter-node {
    background: white;
    border: 1px solid rgba(17,41,28,0.08);
    padding: 0.8rem 1.4rem;
    border-radius: 12px;
    cursor: pointer;
    font-weight: 700;
    transition: var(--transition);
}

.filter-node.active,
.filter-node:hover {
    background: var(--primary-dark);
    color: white;
}

.publication-stream {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.matrix-card {
    background: white;
    padding: 3rem;
    border-radius: 24px;
    border-top: 5px solid var(--accent-gold);
    box-shadow: 0 20px 50px rgba(17,41,28,0.05);
    transition: var(--transition);
}

.matrix-card:hover {
    transform: translateY(-5px);
}

.matrix-authors {
    text-transform: uppercase;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.matrix-title {
    font-family: 'Cinzel', serif;
    font-size: 1.7rem;
    margin-bottom: 1rem;
    color: var(--primary-dark);
}

.matrix-journal {
    color: var(--accent-gold);
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.matrix-abstract {
    background: #f7faf8;
    padding: 1.8rem;
    border-left: 4px solid var(--primary-dark);
    border-radius: 0 12px 12px 0;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.matrix-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.tag-cluster {
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.tag-node {
    padding: 0.4rem 0.8rem;
    background: rgba(17,41,28,0.05);
    border-radius: 30px;
    font-size: 0.75rem;
    font-weight: 700;
}

.action-link {
    background: var(--primary-dark);
    color: white;
    border: none;
    padding: 0.9rem 1.4rem;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 700;
    transition: var(--transition);
}

.action-link:hover {
    background: var(--accent-gold);
}

.impact-banner {
    height: 500px;
    margin: 4rem 8%;
    background:
        linear-gradient(rgba(17,41,28,0.75), rgba(17,41,28,0.82)),
        url('https://images.unsplash.com/photo-1532187863486-abf9dbad1b69?q=80&w=1600&auto=format&fit=crop');
    background-size: cover;
    background-position: center;
    border-radius: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    overflow: hidden;
}

.impact-overlay {
    max-width: 700px;
    padding: 2rem;
}

.impact-overlay h2 {
    font-family: 'Cinzel', serif;
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.impact-overlay p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.92;
}

.impact-btn {
    display: inline-block;
    padding: 1rem 2rem;
    background: var(--accent-gold);
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 700;
    transition: var(--transition);
}

.impact-btn:hover {
    background: white;
    color: var(--primary-dark);
}

.leadership-section {
    background: linear-gradient(135deg, #11291c, #1b3627);
    color: white;
    padding: 8rem 8%;
}

.leadership-section .section-main-title {
    color: white;
}

.board-grid {
    display: grid;
    grid-template-columns: repeat(2,1fr);
    gap: 3rem;
    max-width: 1200px;
    margin: auto;
}

.board-member {
    background: rgba(255,255,255,0.04);
    padding: 2.5rem;
    border-radius: 24px;
    border: 1px solid rgba(255,255,255,0.08);
    backdrop-filter: blur(10px);
}

.board-member h4 {
    font-family: 'Cinzel', serif;
    color: var(--accent-gold);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.role {
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.75rem;
    opacity: 0.7;
    margin-bottom: 1rem;
}

footer {
    background: #0b1a12;
    color: rgba(255,255,255,0.7);
    padding: 6rem 8% 3rem;
}

.footer-matrix {
    max-width: 1400px;
    margin: auto;
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-column h4 {
    color: white;
    margin-bottom: 1.5rem;
    font-family: 'Cinzel', serif;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 1rem;
}

.footer-links a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
}

.footer-baseline {
    border-top: 1px solid rgba(255,255,255,0.08);
    text-align: center;
    padding-top: 2rem;
    font-size: 0.8rem;
}

@media(max-width: 1024px) {
    header,
    .divisions-grid,
    .board-grid,
    .footer-matrix {
        grid-template-columns: 1fr;
    }

    h1 {
        font-size: 3rem;
    }
}

/* HAMBURGER BUTTON */
.menu-toggle {
    display: none;

    background: transparent;
    border: none;

    font-size: 2rem;
    color: var(--primary-dark);

    cursor: pointer;
}

@media(max-width: 768px) {

    nav {
        padding: 1rem 6%;
    }

    .menu-toggle {
        display: block;
        z-index: 1200;
    }

    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(255,255,255,0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
        padding: 2rem 0;
        box-shadow: 0 15px 40px rgba(0,0,0,0.08);
        display: none;
        transition: all 300ms ease-in-out;
        -webkit-transition: all 300ms ease-in-out;
        -moz-transition: all 300ms ease-in-out;
        -ms-transition: all 300ms ease-in-out;
        -o-transition: all 300ms ease-in-out;
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links a {
        font-size: 1rem;
    }

    .hero h1 {
        font-size: 2.4rem;
    }

    .section-title,
    .quote-banner h2 {
        font-size: 2rem;
    }

    h1 {
        font-size: 2.4rem;
    }

    .impact-overlay h2 {
        font-size: 2rem;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }
}