:root {
    /* Color Palette */
    --c-deep-navy: #08111F;
    --c-dark-bg: #0B1220;
    --c-elevated: #111D30;
    --c-secondary-surf: #16243A;
    --c-cyan: #63E6E2;
    --c-blue: #4DA3FF;
    --c-violet: #8B7CFF;
    --c-text-primary: #F5F7FA;
    --c-text-secondary: #A3B2C7;
    --c-border: rgba(255, 255, 255, 0.10);
    --c-border-hover: rgba(99, 230, 226, 0.3);

    /* Typography */
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Layout */
    --max-width: 1200px;
    --content-width: 800px;
    --nav-height: 80px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
}

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

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

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

p {
    margin-bottom: 1rem;
    color: var(--c-text-secondary);
    font-size: 1.05rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.5rem;
    border-radius: 4px;
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 1rem;
    transition: all 0.3s ease;
    cursor: pointer;
    min-height: 44px;
    min-width: 44px;
}

.btn-primary {
    background-color: var(--c-cyan);
    color: var(--c-deep-navy);
}

.btn-primary:hover {
    background-color: #4edcd8;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 230, 226, 0.2);
}

.btn-secondary {
    background-color: transparent;
    color: var(--c-cyan);
    border: 1px solid var(--c-cyan);
}

.btn-secondary:hover {
    background-color: rgba(99, 230, 226, 0.1);
    transform: translateY(-2px);
}

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

.btn-outline:hover {
    border-color: var(--c-cyan);
    color: var(--c-cyan);
}

.btn-pdf {
    background-color: var(--c-elevated);
    border: 1px solid var(--c-border);
    color: var(--c-text-secondary);
    font-size: 0.9rem;
    padding: 0.6rem 1.2rem;
}

.btn-pdf:hover {
    color: var(--c-text-primary);
    border-color: var(--c-text-primary);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--nav-height);
    background-color: rgba(11, 18, 32, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--c-border);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.2rem;
    letter-spacing: 1px;
    color: var(--c-text-primary);
}

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

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--c-text-secondary);
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--c-cyan);
    transition: width 0.3s ease;
}

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

.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    cursor: pointer;
    z-index: 1001;
}

.menu-toggle .bar {
    width: 100%;
    height: 2px;
    background-color: var(--c-text-primary);
    transition: all 0.3s ease;
}

/* Sections Base */
.section-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 4rem 1.5rem;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.section-container.visible {
    opacity: 1;
    transform: translateY(0);
}

.section-header {
    margin-bottom: 2rem;
}

.section-header.center {
    text-align: center;
}

.section-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 0.9rem;
    color: var(--c-cyan);
    letter-spacing: 2px;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    max-width: var(--content-width);
}

.section-header.center .section-title {
    margin: 0 auto;
}

/* Hero Section */
.hero-section {
    padding-top: calc(var(--nav-height) + 4rem);
    padding-bottom: 4rem;
}

.hero-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: center;
    min-height: 70vh;
}

.badge {
    display: inline-block;
    padding: 0.4rem 0.8rem;
    background-color: var(--c-elevated);
    border: 1px solid var(--c-border);
    color: var(--c-text-secondary);
    font-size: 0.8rem;
    letter-spacing: 1px;
    border-radius: 20px;
    margin-bottom: 2rem;
    font-family: var(--font-heading);
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    max-width: 90%;
}

.hero-identity {
    margin-bottom: 3rem;
    padding-left: 1rem;
    border-left: 2px solid var(--c-cyan);
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.hero-identity strong {
    color: var(--c-text-primary);
    font-size: 1.1rem;
}

.hero-identity span {
    color: var(--c-text-secondary);
    font-size: 0.95rem;
}

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

.hero-visual {
    position: relative;
    height: 100%;
    min-height: 400px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.abstract-visual {
    position: relative;
    width: 100%;
    height: 100%;
}

.glow-ambient {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(99, 230, 226, 0.15) 0%, rgba(11, 18, 32, 0) 70%);
    z-index: 1;
    pointer-events: none;
}

.orbit {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border: 1px solid var(--c-border);
    border-radius: 50%;
    z-index: 2;
}

.orbit-1 {
    width: 250px;
    height: 250px;
    animation: spin 30s linear infinite;
    border-top-color: var(--c-cyan);
}

.orbit-2 {
    width: 350px;
    height: 350px;
    animation: spin-reverse 40s linear infinite;
    border-bottom-color: var(--c-blue);
}

.timeline-line {
    position: absolute;
    top: 10%;
    bottom: 10%;
    left: 50%;
    width: 1px;
    background: linear-gradient(to bottom, transparent, var(--c-cyan), transparent);
    z-index: 2;
}

.visual-keywords {
    position: absolute;
    width: 100%;
    height: 100%;
    z-index: 3;
}

.kw {
    position: absolute;
    font-family: var(--font-heading);
    font-size: 0.8rem;
    color: var(--c-text-secondary);
    letter-spacing: 2px;
    background-color: var(--c-dark-bg);
    padding: 0.2rem 0.5rem;
    border: 1px solid var(--c-border);
}

@keyframes spin {
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

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

.hero-highlights {
    max-width: var(--max-width);
    margin: 4rem auto 0;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.highlight-card {
    background-color: var(--c-elevated);
    padding: 2rem;
    border: 1px solid var(--c-border);
    border-radius: 8px;
    transition: transform 0.3s, border-color 0.3s;
}

.highlight-card:hover {
    transform: translateY(-5px);
    border-color: var(--c-border-hover);
}

.highlight-num {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--c-cyan);
    font-weight: 700;
    display: block;
    margin-bottom: 1rem;
}

.highlight-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
}

.highlight-card p {
    font-size: 0.9rem;
    margin-bottom: 0;
}

/* Refleksi 01 Section */
.editorial-grid {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.text-block.main-reflection p {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--c-text-primary);
    max-width: var(--content-width);
}

.kihadjar-panel {
    background: linear-gradient(135deg, var(--c-elevated) 0%, var(--c-dark-bg) 100%);
    border-left: 4px solid var(--c-cyan);
    padding: 1.5rem;
    max-width: var(--content-width);
}

.kihadjar-panel h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--c-cyan);
}

.text-block h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.diversity-diagram {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-top: 2rem;
    flex-wrap: wrap;
    background-color: var(--c-elevated);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--c-border);
}

.diversity-item {
    background-color: var(--c-secondary-surf);
    padding: 0.8rem 1.2rem;
    border-radius: 4px;
    font-size: 0.9rem;
    border: 1px solid var(--c-border);
}

.diversity-connector {
    color: var(--c-cyan);
    font-size: 1.5rem;
}

.diversity-result {
    background-color: rgba(99, 230, 226, 0.1);
    color: var(--c-cyan);
    padding: 0.8rem 1.5rem;
    border-radius: 4px;
    border: 1px solid var(--c-cyan);
    font-weight: 500;
}

.safe-environment-panel {
    background-color: var(--c-elevated);
    padding: 1.5rem;
    text-align: center;
    border-radius: 8px;
    max-width: var(--content-width);
    margin: 0 auto;
}

.safe-environment-panel h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--c-blue);
}

.text-block.two-cols {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.expected-gen ul {
    list-style: none;
}

.expected-gen li {
    padding-left: 1.5rem;
    position: relative;
    margin-bottom: 0.8rem;
    color: var(--c-text-secondary);
}

.expected-gen li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--c-cyan);
}

/* Refleksi 02 Section */
.competencies-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
    align-items: center;
}

.four-competencies {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.comp-card {
    background-color: var(--c-elevated);
    padding: 1.5rem;
    border: 1px solid var(--c-border);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.comp-card span {
    font-family: var(--font-heading);
    color: var(--c-cyan);
    font-weight: 700;
}

.comp-card p {
    margin: 0;
    color: var(--c-text-primary);
    font-weight: 500;
}

.learning-flow-container, .reflection-cycle-container {
    background-color: var(--c-elevated);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    border: 1px solid var(--c-border);
}

.flow-diagram {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 3rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.flow-step {
    background-color: var(--c-secondary-surf);
    padding: 1.5rem;
    border-radius: 8px;
    text-align: center;
    font-weight: 500;
    flex: 1;
    min-width: 150px;
    border: 1px solid var(--c-border);
}

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

.cycle-diagram {
    display: flex;
    justify-content: space-between;
    margin-top: 3rem;
    gap: 1rem;
    flex-wrap: wrap;
}

.cycle-step {
    background-color: transparent;
    border: 1px solid var(--c-cyan);
    color: var(--c-text-primary);
    padding: 1rem;
    border-radius: 30px;
    text-align: center;
    flex: 1;
    min-width: 120px;
    font-size: 0.9rem;
}

.integrity-panel {
    border-left: 2px solid var(--c-violet);
    padding-left: 2rem;
    margin-bottom: 2rem;
    max-width: var(--content-width);
}

.integrity-panel h3 {
    margin-bottom: 1rem;
}

.closing-statement {
    text-align: center;
    padding: 2rem 0;
}

.highlight-quote {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--c-cyan);
    line-height: 1.5;
    font-style: italic;
    max-width: 800px;
    margin: 0 auto;
}

/* Rencana Tindak Lanjut */
.priority-roadmap {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.priority-panel {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 2rem;
    background-color: var(--c-elevated);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--c-border);
    transition: transform 0.3s, border-color 0.3s;
}

.priority-panel:hover {
    transform: translateY(-3px);
    border-color: var(--c-border-hover);
}

.priority-num {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    color: var(--c-secondary-surf);
    line-height: 1;
    text-shadow: -1px -1px 0 var(--c-border), 1px -1px 0 var(--c-border), -1px 1px 0 var(--c-border), 1px 1px 0 var(--c-border);
}

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

.priority-diagram {
    margin-top: 2.5rem;
    background-color: var(--c-dark-bg);
    padding: 2rem;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    border: 1px solid var(--c-border);
}

.pd-box {
    background-color: var(--c-secondary-surf);
    padding: 1rem 1.5rem;
    border-radius: 4px;
    text-align: center;
    width: 100%;
    max-width: 500px;
    font-size: 0.9rem;
    border: 1px solid var(--c-border);
}

.pd-box.accent {
    background-color: rgba(99, 230, 226, 0.1);
    border-color: var(--c-cyan);
    color: var(--c-cyan);
    font-weight: 500;
}

.pd-arrow {
    color: var(--c-text-secondary);
    margin: 0.5rem 0;
}

.creative-diagram {
    display: block;
}

.pd-row {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
    font-size: 0.9rem;
}

.badge-tag {
    background-color: var(--c-secondary-surf);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    border: 1px solid var(--c-border);
}

.pd-grid-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    justify-content: center;
}

.pd-grid-tags span {
    background-color: transparent;
    border: 1px dashed var(--c-cyan);
    color: var(--c-text-secondary);
    padding: 0.6rem 1rem;
    border-radius: 4px;
    font-size: 0.85rem;
}

/* Sintesis Section */
.synthesis-timeline {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-top: 4rem;
    position: relative;
}

.syn-step {
    flex: 1;
    text-align: center;
    padding: 0 1rem;
    position: relative;
    z-index: 2;
}

.syn-num {
    width: 40px;
    height: 40px;
    background-color: var(--c-cyan);
    color: var(--c-deep-navy);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 700;
    margin: 0 auto 1.5rem;
}

.syn-step h4 {
    margin-bottom: 0.8rem;
    color: var(--c-text-primary);
}

.syn-step p {
    font-size: 0.85rem;
}

.syn-line {
    flex-grow: 1;
    height: 2px;
    background-color: var(--c-border);
    margin-top: 20px;
    min-width: 20px;
}

/* Komitmen Section */
.commitment-section {
    padding-bottom: 8rem;
}

.commitment-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.big-statement {
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--c-text-primary);
    line-height: 1.4;
    margin-bottom: 3rem;
}

.commitment-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 3rem;
}

.c-item {
    background-color: var(--c-elevated);
    padding: 1.2rem;
    border-radius: 8px;
    border: 1px solid var(--c-border);
    font-weight: 500;
}

.commitment-note {
    font-style: italic;
    color: var(--c-text-secondary);
    margin-bottom: 3rem;
}

/* Footer */
.footer {
    background-color: var(--c-elevated);
    border-top: 1px solid var(--c-border);
    padding: 4rem 2rem;
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    gap: 2rem;
    align-items: center;
}

.footer-info h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.footer-info p {
    font-size: 0.85rem;
    margin-bottom: 0.2rem;
}

.footer-tagline p {
    font-family: var(--font-heading);
    font-style: italic;
    color: var(--c-cyan);
    text-align: center;
    font-size: 1.1rem;
}

.footer-actions {
    text-align: right;
}

/* Responsive */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .synthesis-timeline {
        flex-direction: column;
        align-items: center;
    }
    
    .syn-line {
        width: 2px;
        height: 40px;
        margin: 0 auto 1.5rem;
    }
    
    .syn-step {
        width: 100%;
        max-width: 400px;
        margin-bottom: 1.5rem;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: absolute;
        top: var(--nav-height);
        left: -100%;
        width: 100%;
        background-color: rgba(11, 18, 32, 0.95);
        backdrop-filter: blur(10px);
        flex-direction: column;
        align-items: center;
        padding: 2rem 0;
        transition: left 0.3s ease;
        border-bottom: 1px solid var(--c-border);
    }

    .nav-menu.active {
        left: 0;
    }

    .menu-toggle {
        display: flex;
    }

    .menu-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    .menu-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }
    .menu-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .hero-identity {
        border-left: none;
        border-top: 2px solid var(--c-cyan);
        padding-left: 0;
        padding-top: 1rem;
        align-items: center;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-visual {
        min-height: 300px;
    }

    .hero-highlights {
        grid-template-columns: 1fr;
    }

    .text-block.two-cols {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

    .flow-diagram {
        flex-direction: column;
    }

    .flow-arrow {
        transform: rotate(90deg);
        margin: 0.5rem 0;
    }

    .cycle-diagram {
        flex-direction: column;
    }

    .priority-panel {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .priority-num {
        font-size: 2.5rem;
    }

    .footer-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .footer-actions {
        text-align: center;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .section-container {
        padding: 4rem 1.5rem;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .btn {
        width: 100%;
    }
    
    .pd-row {
        flex-direction: column;
    }
    
    .pd-row span {
        margin-bottom: 0.5rem;
    }
    
    .big-statement {
        font-size: 1.5rem;
    }
}

/* PDF Viewer Section */
.pdf-viewer-container {
    background-color: var(--c-elevated);
    border: 1px solid var(--c-border);
    border-radius: 8px;
    padding: 2rem;
    margin-top: 2rem;
}

.pdf-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.pdf-frame-wrapper {
    width: 100%;
    border: 1px solid var(--c-border);
    border-radius: 4px;
    overflow: hidden;
    background-color: var(--c-dark-bg);
}

@media (max-width: 768px) {
    .pdf-viewer-container {
        padding: 1rem;
    }
    
    .pdf-actions {
        flex-direction: column;
    }
    
    .pdf-actions .btn {
        width: 100%;
    }
}

@media (max-width: 768px) {
    .section-container {
        opacity: 1 !important;
        transform: translateY(0) !important;
        padding-top: 3rem;
        padding-bottom: 3rem;
    }
}

/* Justify text for paragraphs */
.text-block p, 
.priority-content p, 
.kihadjar-panel p,
.hero-subtitle,
.learning-flow-container > p,
.reflection-cycle-container > p,
.integrity-panel p {
    text-align: justify;
    hyphens: auto;
    -webkit-hyphens: auto;
}

/* Fix iOS iframe overflow */
.pdf-frame-wrapper {
    position: relative;
    -webkit-overflow-scrolling: touch;
    width: 100%;
    max-width: 100%;
}
.pdf-frame-wrapper iframe {
    max-width: 100%;
}

@media (max-width: 768px) {
    .pdf-frame-wrapper iframe {
        height: 450px !important;
    }
}