:root {
    --deep-navy: #08111F;
    --dark-surface: #0D1728;
    --elevated-surface: #132238;
    --cyan: #63E6E2;
    --blue: #4DA3FF;
    --violet: #8B7CFF;
    --primary-text: #F5F7FA;
    --muted-text: #A3B2C7;
    --border: rgba(255, 255, 255, 0.10);
    
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --transition-fast: 200ms ease;
    --transition-normal: 400ms ease;
    --transition-slow: 600ms cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--deep-navy);
    color: var(--primary-text);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
}

.text-cyan { color: var(--cyan); }
.text-blue { color: var(--blue); }
.text-violet { color: var(--violet); }
.text-center { text-align: center; }
.mb-4 { margin-bottom: 1.5rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 3rem; }
.d-block { display: block; }

/* Grid Background */
.grid-background {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image: 
        linear-gradient(var(--border) 1px, transparent 1px),
        linear-gradient(90deg, var(--border) 1px, transparent 1px);
    background-size: 40px 40px;
    opacity: 0.2;
    z-index: -1;
    pointer-events: none;
}
.grid-background::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 0%, transparent 0%, var(--deep-navy) 70%);
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 6rem 0;
    position: relative;
}

.bg-darker {
    background-color: var(--dark-surface);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 70px;
    background: rgba(8, 17, 31, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    z-index: 100;
    transition: all var(--transition-normal);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--primary-text);
    text-decoration: none;
    letter-spacing: 0.05em;
}

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

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: var(--muted-text);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: color var(--transition-fast);
}

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--primary-text);
    font-size: 1.5rem;
    cursor: pointer;
}

.mobile-nav {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--dark-surface);
    border-bottom: 1px solid var(--border);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 99;
}

.mobile-nav.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.mobile-link {
    color: var(--primary-text);
    text-decoration: none;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    transition: background var(--transition-fast);
}

.mobile-link:hover {
    background: var(--elevated-surface);
    color: var(--cyan);
}

/* Hero */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 70px; /* Offset for navbar */
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.badge {
    display: inline-block;
    padding: 0.35rem 0.75rem;
    background: rgba(99, 230, 226, 0.1);
    color: var(--cyan);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    border: 1px solid rgba(99, 230, 226, 0.2);
    border-radius: 4px;
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    color: var(--primary-text);
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--muted-text);
    margin-bottom: 2.5rem;
    max-width: 90%;
}

.identity-card {
    background: var(--elevated-surface);
    border: 1px solid var(--border);
    padding: 1rem 1.5rem;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2.5rem;
    border-left: 3px solid var(--cyan);
}

.identity-info h3 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.identity-info p {
    font-size: 0.875rem;
    color: var(--muted-text);
}

.hero-actions {
    display: flex;
    gap: 1rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.75rem;
    font-weight: 500;
    border-radius: 4px;
    text-decoration: none;
    transition: all var(--transition-fast);
    cursor: pointer;
    font-family: var(--font-heading);
}

.btn-primary {
    background: var(--cyan);
    color: var(--deep-navy);
    border: 1px solid var(--cyan);
}

.btn-primary:hover {
    background: transparent;
    color: var(--cyan);
    box-shadow: 0 0 20px rgba(99, 230, 226, 0.2);
}

.btn-outline {
    background: transparent;
    color: var(--primary-text);
    border: 1px solid var(--border);
}

.btn-outline:hover {
    border-color: var(--primary-text);
    background: rgba(255, 255, 255, 0.05);
}

/* Hero Abstract Visual */
.abstract-composition {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.orbit {
    position: absolute;
    border: 1px dashed var(--border);
    border-radius: 50%;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
}

.orbit-1 { width: 60%; height: 60%; animation: spin 40s linear infinite; }
.orbit-2 { width: 90%; height: 90%; animation: spin-reverse 60s linear infinite; }

.floating-panel {
    position: absolute;
    background: rgba(19, 34, 56, 0.8);
    backdrop-filter: blur(8px);
    border: 1px solid var(--border);
    padding: 0.75rem 1.25rem;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-heading);
    font-size: 0.875rem;
    letter-spacing: 0.05em;
    color: var(--cyan);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.panel-1 { top: 15%; left: 10%; animation: float 6s ease-in-out infinite; }
.panel-2 { top: 25%; right: 5%; animation: float 5s ease-in-out infinite 1s; }
.panel-3 { bottom: 20%; left: 15%; animation: float 7s ease-in-out infinite 2s; }
.panel-4 { bottom: 30%; right: 10%; animation: float 6s ease-in-out infinite 3s; }

.glow-orb {
    position: absolute;
    width: 150px;
    height: 150px;
    background: var(--cyan);
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.2;
}

/* Sections */
.section-header {
    margin-bottom: 4rem;
}

.section-number {
    font-family: var(--font-heading);
    font-size: 0.875rem;
    color: var(--cyan);
    letter-spacing: 0.1em;
    display: block;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    max-width: 800px;
}

/* Visi Pendidikan */
.big-quote {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 500;
    line-height: 1.4;
    color: var(--primary-text);
    margin-bottom: 4rem;
    padding-left: 2rem;
    border-left: 4px solid var(--cyan);
    max-width: 900px;
}

.editorial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.editorial-card {
    background: var(--elevated-surface);
    border: 1px solid var(--border);
    padding: 2.5rem 2rem;
    border-radius: 8px;
    transition: all var(--transition-normal);
}

.editorial-card:hover {
    border-color: var(--cyan);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.card-icon {
    font-size: 2rem;
    color: var(--cyan);
    margin-bottom: 1.5rem;
}

.editorial-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

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

.text-content p {
    margin-bottom: 1rem;
    max-width: 900px;
}
.muted-text { color: var(--muted-text); }

/* Visi Guru */
.big-statement {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    text-align: center;
    max-width: 800px;
    margin: 0 auto 4rem;
    color: var(--cyan);
}

.identity-panels {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 5rem;
}

.panel {
    background: linear-gradient(180deg, var(--elevated-surface) 0%, transparent 100%);
    border: 1px solid var(--border);
    border-top: 2px solid var(--cyan);
    padding: 2.5rem;
    border-radius: 8px;
    position: relative;
    overflow: hidden;
}

.panel-num {
    position: absolute;
    top: -10px;
    right: 10px;
    font-size: 6rem;
    font-family: var(--font-heading);
    font-weight: 700;
    color: rgba(255,255,255,0.03);
    z-index: 0;
}

.panel h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
    letter-spacing: 0.1em;
}

.panel p {
    color: var(--muted-text);
    position: relative;
    z-index: 1;
}

.learning-approach {
    margin-bottom: 4rem;
}

.subsection-title {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    text-align: center;
}

.approach-grid {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.approach-item {
    background: var(--elevated-surface);
    border: 1px solid var(--border);
    padding: 1rem 1.5rem;
    border-radius: 40px;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 500;
}

.dkv-highlight {
    background: var(--deep-navy);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 3rem;
    display: flex;
    align-items: center;
    gap: 3rem;
    position: relative;
    overflow: hidden;
}

.dkv-highlight::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; height: 2px;
    background: linear-gradient(90deg, var(--violet), var(--cyan));
}

.dkv-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}
.dkv-content p {
    color: var(--muted-text);
}
.dkv-visual {
    font-size: 5rem;
    color: rgba(255,255,255,0.05);
}

/* Roadmap Langkah Nyata */
.roadmap {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.roadmap::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 24px;
    width: 2px;
    background: var(--border);
}

.roadmap-item {
    position: relative;
    padding-left: 80px;
    margin-bottom: 4rem;
}

.roadmap-item:last-child {
    margin-bottom: 0;
}

.roadmap-marker {
    position: absolute;
    left: 0;
    top: 0;
    width: 50px;
    height: 50px;
    background: var(--dark-surface);
    border: 2px solid var(--cyan);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--cyan);
    z-index: 2;
    box-shadow: 0 0 15px rgba(99, 230, 226, 0.2);
}

.roadmap-content {
    background: var(--elevated-surface);
    border: 1px solid var(--border);
    padding: 2.5rem;
    border-radius: 8px;
    transition: all var(--transition-normal);
}

.roadmap-content:hover {
    border-color: rgba(255,255,255,0.2);
}

.roadmap-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-text);
}

.roadmap-content p {
    color: var(--muted-text);
    margin-bottom: 1.5rem;
}

/* Interactive elements in roadmap */
.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}
.tags span {
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-size: 0.85rem;
    color: var(--muted-text);
}

.action-indicators {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 1rem;
}
.action-indicators span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--primary-text);
}
.action-indicators i { color: var(--cyan); }

.flow-visual {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1.5rem;
    background: rgba(0,0,0,0.2);
    padding: 1rem;
    border-radius: 8px;
}
.flow-visual span {
    font-size: 0.9rem;
    font-weight: 500;
}
.flow-visual i { color: var(--cyan); }

.artifact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 1.5rem;
}
.artifact {
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border);
    padding: 1rem;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.9rem;
}
.artifact i { font-size: 1.25rem; color: var(--blue); }

.value-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-top: 1.5rem;
}
.value-grid span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}
.value-grid i { color: var(--violet); }

.cycle-visual {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1.5rem;
    background: rgba(0,0,0,0.2);
    padding: 1rem;
    border-radius: 8px;
    font-size: 0.85rem;
}
.cycle-visual i { color: var(--cyan); }

.relation-diagram {
    margin-top: 1.5rem;
    text-align: center;
}
.center-node {
    display: inline-block;
    background: rgba(99, 230, 226, 0.1);
    border: 1px solid var(--cyan);
    color: var(--cyan);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    margin-bottom: 1rem;
    font-weight: 500;
}
.satellite-nodes {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
}
.satellite-nodes span {
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-size: 0.9rem;
}

/* Connecting the Dots */
.connection-flow {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    max-width: 600px;
    margin: 0 auto;
}

.flow-card {
    background: var(--elevated-surface);
    border: 1px solid var(--border);
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    width: 100%;
}

.flow-card.highlight {
    border-color: rgba(99, 230, 226, 0.3);
    background: linear-gradient(180deg, rgba(99, 230, 226, 0.05) 0%, var(--elevated-surface) 100%);
}

.flow-icon {
    font-size: 2rem;
    color: var(--cyan);
    margin-bottom: 1rem;
}

.flow-card h3 {
    margin-bottom: 0.5rem;
}
.flow-card p {
    color: var(--muted-text);
    font-size: 0.9rem;
}

.flow-arrow {
    font-size: 1.5rem;
    color: var(--muted-text);
}

/* Komitmen */
.commitment-wrapper {
    max-width: 800px;
    margin: 0 auto;
    padding: 4rem 2rem;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: linear-gradient(180deg, rgba(13, 23, 40, 0) 0%, rgba(99, 230, 226, 0.03) 100%);
}

.commitment-statement {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    line-height: 1.6;
    text-align: center;
    color: var(--primary-text);
}

/* Footer */
.footer {
    border-top: 1px solid var(--border);
    padding: 4rem 0;
    background: var(--dark-surface);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-identity h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}
.footer-identity p {
    color: var(--muted-text);
    font-size: 0.875rem;
    line-height: 1.4;
}

.footer-tagline {
    max-width: 400px;
    text-align: right;
}
.footer-tagline p {
    font-family: var(--font-heading);
    color: var(--cyan);
    font-style: italic;
}

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

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.fade-right {
    transform: translateX(30px);
}
.fade-right.active {
    transform: translateX(0);
}

.delay-1 { transition-delay: 100ms; }
.delay-2 { transition-delay: 200ms; }
.delay-3 { transition-delay: 300ms; }

@keyframes spin {
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}
@keyframes spin-reverse {
    100% { transform: translate(-50%, -50%) rotate(-360deg); }
}
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

/* Responsive */
@media (max-width: 1024px) {
    .hero-title { font-size: 2.75rem; }
    .identity-panels { grid-template-columns: 1fr; }
    .dkv-highlight { flex-direction: column; text-align: center; gap: 1.5rem; }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .mobile-menu-btn { display: block; }
    
    .hero-container { grid-template-columns: 1fr; gap: 3rem; text-align: center; }
    .hero-subtitle { max-width: 100%; margin: 0 auto 2.5rem; text-align: justify; }
    .identity-card { justify-content: center; text-align: left; }
    .hero-actions { justify-content: center; }
    
    .abstract-composition { max-width: 400px; margin: 0 auto; }
    
    .section-title { font-size: 2rem; }
    .big-quote { font-size: 1.5rem; padding-left: 1.5rem; border-width: 3px; text-align: justify; }
    
    /* Justify paragraphs on mobile for neatness */
    p { text-align: justify; }
    .text-content p, .roadmap-content p, .editorial-card p, .panel p { text-align: justify; }
    
    .value-grid { grid-template-columns: 1fr 1fr; }
    .artifact-grid { grid-template-columns: 1fr; }
    
    .footer-content { flex-direction: column; text-align: center; }
    .footer-tagline { text-align: center; }
    
    .roadmap::before { left: 16px; }
    .roadmap-item { padding-left: 50px; }
    .roadmap-marker { width: 32px; height: 32px; font-size: 0.8rem; }
    .roadmap-content { padding: 1.5rem; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 2.25rem; }
    .hero-actions { flex-direction: column; width: 100%; }
    .btn { width: 100%; }
    
    .value-grid { grid-template-columns: 1fr; }
    .flow-visual { flex-direction: column; align-items: flex-start; }
    .cycle-visual { flex-direction: column; align-items: flex-start; }
    
    .commitment-statement { font-size: 1.25rem; text-align: justify; }
    .commitment-wrapper { padding: 2rem 1.5rem; }
}