:root {
    --teal: #00D4AA;
    --teal-dim: rgba(0, 212, 170, 0.15);
    --teal-glow: rgba(0, 212, 170, 0.4);
    --dark-bg: #0D1B2A;
    --dark-card: #112240;
    --dark-border: rgba(0, 212, 170, 0.2);
    --text-primary: #E6F1FF;
    --text-secondary: #8892B0;
    --text-dim: #5A6A89;
    --orange-accent: #FF6B35;
}

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

html {
    scroll-behavior: smooth;
}

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

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.25rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(13, 27, 42, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--dark-border);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.logo span {
    color: var(--teal);
}

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

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.3s;
}

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

.nav-cta {
    background: transparent;
    border: 1px solid var(--teal);
    color: var(--teal);
    padding: 0.6rem 1.5rem;
    border-radius: 4px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
}

.nav-cta:hover {
    background: var(--teal);
    color: var(--dark-bg);
}

/* Hero Section */
.hero {
    min-height: 70vh;
    display: flex;
    align-items: center;
    padding: 120px 5% 60px;
    position: relative;
    overflow: hidden;
    gap: 4rem;
    flex-wrap: wrap;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse 80% 50% at 20% 40%, rgba(0, 212, 170, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 80% 60%, rgba(0, 100, 200, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    flex: 1 1 450px;
}

.hero h1 {
    font-size: clamp(3rem, 6vw, 4.5rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -2px;
}

.hero h1 .teal {
    color: var(--teal);
}

.hero-sub {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 550px;
    line-height: 1.8;
}

.hero-image {
    flex: 1 1 450px;
    max-width: 600px;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: 8px;
}

/* Hero Bottom Section - Stats and CTAs */
.hero-bottom {
    padding: 60px 5%;
    text-align: center;
    background: var(--dark-bg);
}

.hero-stats {
    display: flex;
    gap: 3rem;
    justify-content: center;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-family: 'Space Mono', monospace;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--teal);
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-ctas {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary {
    background: var(--teal);
    color: var(--dark-bg);
    padding: 1rem 2rem;
    border-radius: 4px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px var(--teal-glow);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    padding: 1rem 2rem;
    border-radius: 4px;
    font-weight: 500;
    text-decoration: none;
    border: 1px solid var(--dark-border);
    transition: all 0.3s;
}

.btn-secondary:hover {
    border-color: var(--teal);
    color: var(--teal);
}

.hero-image {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 45%;
    max-width: 600px;
    opacity: 0.9;
    z-index: 1;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    mask-image: linear-gradient(to left, black 60%, transparent);
}

/* Section Styles */
section {
    padding: 100px 5%;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-badge {
    display: inline-block;
    font-family: 'Space Mono', monospace;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--teal);
    background: var(--teal-dim);
    padding: 0.5rem 1rem;
    border-radius: 2px;
    margin-bottom: 1rem;
}

.section-header h2 {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: 1rem;
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ERW Section */
.erw-section {
    background: linear-gradient(180deg, var(--dark-bg) 0%, var(--dark-card) 100%);
}

.erw-intro {
    max-width: 800px;
    margin: 0 auto 4rem;
    text-align: center;
}

.erw-intro p {
    font-size: 1.15rem;
    color: var(--text-secondary);
    line-height: 1.9;
}

.pathway-visual {
    max-width: 1000px;
    margin: 0 auto 4rem;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--dark-border);
}

.pathway-visual img {
    width: 100%;
    height: auto;
    display: block;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.benefit-card {
    background: var(--dark-card);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--dark-border);
    transition: all 0.3s;
}

.benefit-card:hover {
    border-color: var(--teal);
    transform: translateY(-4px);
}

.benefit-number {
    font-family: 'Space Mono', monospace;
    font-size: 0.85rem;
    color: var(--teal);
    margin-bottom: 1rem;
}

.benefit-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.benefit-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

.benefit-card .highlight {
    color: var(--teal);
    font-weight: 600;
}

/* Chemistry Steps */
.chemistry-section {
    background: var(--dark-card);
    border-top: 1px solid var(--dark-border);
    border-bottom: 1px solid var(--dark-border);
}

.chemistry-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1200px;
    margin: 0 auto;
    align-items: center;
}

.chemistry-steps {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.step {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.step-num {
    font-family: 'Space Mono', monospace;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--teal);
    flex-shrink: 0;
    width: 40px;
}

.step-content h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.step-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.chemistry-visual {
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--dark-border);
}

.chemistry-visual img {
    width: 100%;
    height: auto;
    display: block;
}

/* Comparison Section */
.comparison-section {
    background: var(--dark-bg);
}

.comparison-chart {
    max-width: 1000px;
    margin: 0 auto;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--dark-border);
}

.comparison-chart img {
    width: 100%;
    height: auto;
    display: block;
}

.comparison-note {
    text-align: center;
    margin-top: 2rem;
    padding: 1.5rem;
    background: var(--teal-dim);
    border-radius: 8px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.comparison-note p {
    color: var(--text-primary);
    font-size: 1rem;
}

/* Indonesia Section */
.indonesia-section {
    background: linear-gradient(180deg, var(--dark-card) 0%, var(--dark-bg) 100%);
}

.indonesia-map {
    max-width: 100%;
    margin: 0 auto 4rem;
    border-radius: 8px;
    overflow: hidden;
}

.indonesia-map img {
    width: 100%;
    height: auto;
    display: block;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto 4rem;
}

.advantage-card {
    background: var(--dark-card);
    padding: 1.5rem;
    border-radius: 6px;
    border: 1px solid var(--dark-border);
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.advantage-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.advantage-content h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.advantage-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.advantage-content .stat-highlight {
    color: var(--teal);
    font-weight: 600;
}

/* Science Points */
.science-points {
    max-width: 800px;
    margin: 0 auto;
}

.science-point {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    align-items: flex-start;
}

.science-point::before {
    content: '→';
    color: var(--teal);
    font-weight: bold;
    flex-shrink: 0;
}

.science-point p {
    color: var(--text-secondary);
}

/* Approach Section */
.approach-section {
    background: var(--dark-bg);
}

.approach-intro {
    max-width: 700px;
    margin: 0 auto 4rem;
    text-align: center;
}

.approach-intro p {
    font-size: 1.15rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.focus-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem 3rem;
    max-width: 1100px;
    margin: 0 auto 4rem;
    justify-content: center;
}

.focus-card {
    text-align: center;
    padding: 2rem;
    flex: 0 0 250px;
}

.focus-icon {
    width: 60px;
    height: 60px;
    background: var(--teal-dim);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
    font-size: 1.5rem;
}

.focus-card h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.focus-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.mrv-highlight {
    max-width: 800px;
    margin: 0 auto;
    background: var(--dark-card);
    padding: 2.5rem;
    border-radius: 8px;
    border-left: 4px solid var(--teal);
}

.mrv-highlight h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.mrv-highlight p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.8;
}

/* Team Section */
.team-section {
    background: var(--dark-card);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto 4rem;
}

.team-card {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.team-photo {
    width: 120px;
    height: 120px;
    border-radius: 8px;
    overflow: hidden;
    flex-shrink: 0;
    border: 2px solid var(--dark-border);
}

.team-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.team-info h3 {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

.team-role {
    color: var(--teal);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 0.75rem;
}

.team-bio {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 0.75rem;
}

.team-expertise {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.expertise-tag {
    font-size: 0.75rem;
    background: var(--teal-dim);
    color: var(--teal);
    padding: 0.25rem 0.75rem;
    border-radius: 2px;
}

/* Advisors */
.advisors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.advisor-card {
    background: var(--dark-bg);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--dark-border);
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.advisor-photo {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}

.advisor-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.advisor-info h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.advisor-title {
    font-size: 0.8rem;
    color: var(--teal);
    margin-bottom: 0.5rem;
}

.advisor-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Partners Section */
.partners-section {
    background: var(--dark-bg);
}

.partner-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    max-width: 1100px;
    margin: 0 auto;
}

.partner-card {
    background: var(--dark-card);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--dark-border);
    transition: all 0.3s;
}

.partner-card:hover {
    border-color: var(--teal);
}

.partner-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.partner-card h3 span {
    font-size: 1.25rem;
}

.partner-tagline {
    color: var(--teal);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.partner-card > p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.25rem;
    line-height: 1.7;
}

.partner-card ul {
    list-style: none;
}

.partner-card li {
    color: var(--text-secondary);
    font-size: 0.9rem;
    padding: 0.4rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.partner-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--teal);
    font-weight: bold;
}

/* Contact Section */
.contact-section {
    background: linear-gradient(180deg, var(--dark-bg) 0%, var(--dark-card) 100%);
    text-align: center;
    padding: 120px 5%;
}

.contact-section h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.contact-section > p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto 2.5rem;
    line-height: 1.8;
}

.contact-email {
    font-size: 1.5rem;
    color: var(--teal);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 2rem;
    transition: all 0.3s;
}

.contact-email:hover {
    transform: translateX(5px);
}

.contact-locations {
    color: var(--text-dim);
    font-size: 0.95rem;
}

/* Footer */
footer {
    background: var(--dark-card);
    padding: 60px 5% 30px;
    border-top: 1px solid var(--dark-border);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto 3rem;
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 1rem;
    line-height: 1.7;
}

.footer-column h4 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-dim);
    margin-bottom: 1rem;
}

.footer-column ul {
    list-style: none;
}

.footer-column a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    display: block;
    padding: 0.4rem 0;
    transition: color 0.3s;
}

.footer-column a:hover {
    color: var(--teal);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--dark-border);
    color: var(--text-dim);
    font-size: 0.85rem;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Mobile Responsive */
@media (max-width: 968px) {
    .hero {
        min-height: auto;
        padding: 100px 5% 40px;
        gap: 2.5rem;
    }

    .hero-content {
        flex: 1 1 100%;
        text-align: center;
    }

    .hero-sub {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-image {
        position: relative;
        right: auto;
        top: auto;
        transform: none;
        width: 100%;
        flex: 1 1 100%;
        max-width: 100%;
        opacity: 1;
    }

    .hero-image img {
        mask-image: none;
    }

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

    .chemistry-steps .section-header {
        text-align: center !important;
    }

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

    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero-stats {
        gap: 2rem;
    }

    .team-card {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

/* Photo Gallery Row */
.photo-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    max-width: 1000px;
    margin: 3rem auto 0;
}

.photo-row img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 6px;
    border: 1px solid var(--dark-border);
}