/* ===== VARIABLES & RESET ===== */
:root {
    --primary: #0066cc;
    --primary-dark: #004d99;
    --primary-light: #00a8ff;
    --secondary: #1a365d;
    --accent: #00d4ff;           /* Dari hijau ke biru terang */
    --fiber-glow: #0099ff;       /* Dari hijau ke biru */
    --success: #0099ff;
    --warning: #ffd166;
    --danger: #ff6b6b;
    --dark: #0a1929;
    --darker: #07101c;
    --light: #f8f9fa;
    --gray: #8b9cb5;
    --light-gray: #2d3748;
    
    /* Update gradients untuk biru */
    --gradient-primary: linear-gradient(135deg, var(--primary), var(--primary-light));
    --gradient-fiber: linear-gradient(135deg, #0099ff, #00d4ff); /* Biru saja */
    --gradient-dark: linear-gradient(135deg, var(--darker), var(--dark));
    --gradient-accent: linear-gradient(135deg, var(--accent), var(--primary-light));
    
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 5px 20px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.2);
    --shadow-fiber: 0 0 20px rgba(0, 153, 255, 0.4);    /* Biru */
    --shadow-glow: 0 0 30px rgba(0, 153, 255, 0.3);     /* Biru */
    
    /* ... sisanya tetap sama */
}
    
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 20px;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--light);
    background: #0a1929; /* Fallback color jika gambar tidak load */
    overflow-x: hidden;
    position: relative;
}

/* ===== FIBER OPTIC BACKGROUND WITH IMAGE ===== */
.fiber-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    background: url('../gambar/background2.jpg') center/contain no-repeat;
    background-attachment: fixed;
    overflow: hidden;
}

/* Overlay untuk kontras */
.fiber-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg, 
        rgba(10, 25, 41, 0.85) 0%,
        rgba(7, 16, 28, 0.75) 50%,
        rgba(10, 25, 41, 0.85) 100%
    );
    z-index: -1;
}

.fiber-lines {
    position: absolute;
    width: 100%;
    height: 100%;
}

.fiber-line {
    position: absolute;
    height: 1px;
    background: var(--gradient-fiber);
    opacity: 0.3;
    filter: blur(0.5px);
    animation: fiberFlow 6s linear infinite !important;
}

.fiber-line::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-fiber);
    opacity: 0;
    filter: blur(2px);
    animation: fiberPulse 3s ease-in-out infinite !important;
}

.fiber-node {
    position: absolute;
    width: 8px;
    height: 8px;
    background: var(--fiber-glow);
    border-radius: 50%;
    box-shadow: 0 0 15px var(--fiber-glow);
    animation: nodeGlow 2s ease-in-out infinite alternate !important;
}

.fiber-grid {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 255, 136, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 136, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    animation: gridPulse 8s ease-in-out infinite !important;
}

/* ===== GLOWING HEADER - FIXED VERSION ===== */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(10, 25, 41, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 255, 136, 0.3);
    z-index: 1000;
    transition: var(--transition);
    height: 100px; /* KECILKAN dari 80px ke 60px */
}

header.header-scrolled {
    background: rgba(10, 25, 41, 0.98);
    padding: 0.5rem 0;
    box-shadow: var(--shadow-fiber);
    border-bottom-color: rgba(0, 255, 136, 0.5);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100px;
}

/* Body adjustment untuk header fixed */
body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--light);
    background: #0a1929;
    overflow-x: hidden;
    position: relative;
    padding-top: 80px; /* Kompensasi tinggi header */
}

/* Hero section adjustment */
.hero {
    min-height: calc(100vh - 80px); /* Kurangi tinggi header */
    display: flex;
    align-items: center;
    position: relative;
    padding: 0 0 50px 0; /* Hapus padding top */
}

/* Pastikan konten lain tidak tertutup header */
.main-content {
    position: relative;
    z-index: 1;
}

/* Smooth scroll adjustment untuk anchor links */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px; /* Offset untuk header fixed */
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-fiber);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: var(--shadow-fiber);
    animation: pulse 2s infinite !important;
}

.logo-text h1 {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--light), var(--fiber-glow));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-text p {
    font-size: 0.8rem;
    opacity: 0.8;
}

/* ===== FIBER NAVIGATION ===== */
.nav-menu ul {
    display: flex;
    list-style: none;
    gap: 0.5rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    text-decoration: none;
    color: var(--light);
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border: 1px solid transparent;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-fiber);
    transition: var(--transition);
    z-index: -1;
}

.nav-link:hover::before {
    left: 0;
}

.nav-link:hover {
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-fiber);
    border-color: var(--fiber-glow);
}

.nav-link i {
    font-size: 1.1rem;
}

/* ===== FIBER DROPDOWN ===== */
.dropdown {
    position: relative;
}

.dropdown-content {
    position: absolute;
    top: 100%;
    left: 0;
    width: 500px;
    background: rgba(23, 43, 77, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 255, 136, 0.3);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    z-index: 1000;
}

.dropdown:hover .dropdown-content {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
    padding: 1rem;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem;
    text-decoration: none;
    color: var(--light);
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.dropdown-item:hover {
    background: rgba(0, 255, 136, 0.1);
    transform: translateX(5px);
    border-left-color: var(--fiber-glow);
}

.dropdown-arrow {
    transition: var(--transition);
}

.dropdown:hover .dropdown-arrow {
    transform: rotate(180deg);
}

/* ===== HERO SECTION ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 100px 0 50px;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-badge {
    display: inline-block;
    background: var(--gradient-fiber);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-fiber);
    animation: slideInLeft 1s ease !important;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    animation: slideInLeft 1s ease 0.2s both !important;
}

.title-line {
    display: block;
    color: var(--light);
}

.title-highlight {
    background: linear-gradient(135deg, var(--fiber-glow), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 2rem;
    animation: slideInLeft 1s ease 0.4s both !important;
}

.hero-stats {
    display: flex;
    gap: 2rem;
    animation: slideInLeft 1s ease 0.6s both !important;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-item i {
    font-size: 2rem;
    color: var(--fiber-glow);
    text-shadow: 0 0 10px var(--fiber-glow);
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--fiber-glow), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    display: block;
    font-size: 0.9rem;
    opacity: 0.8;
}

/* ===== FIBER NETWORK ANIMATION ===== */
.hero-visual {
    position: relative;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.fiber-network {
    position: relative;
    width: 350px;
    height: 350px;
}

.fiber-node-large {
    position: absolute;
    width: 25px;
    height: 25px;
    background: var(--gradient-fiber);
    border-radius: 50%;
    box-shadow: 0 0 20px var(--fiber-glow);
    animation: fiberNodePulse 3s infinite !important;
}

.fiber-node-large:nth-child(1) { top: 15%; left: 15%; }
.fiber-node-large:nth-child(2) { top: 15%; right: 15%; }
.fiber-node-large:nth-child(3) { bottom: 15%; left: 15%; }
.fiber-node-large:nth-child(4) { bottom: 15%; right: 15%; }
.fiber-node-large:nth-child(5) { top: 50%; left: 50%; transform: translate(-50%, -50%); }

.fiber-connection {
    position: absolute;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--fiber-glow), transparent) !important;
    background-size: 200% 100% !important;
    transform-origin: left center;
    box-shadow: 0 0 10px var(--fiber-glow);
    animation: connectionFlow 3s infinite !important;
}

/* ===== MAIN CONTENT ===== */
.main-content {
    position: relative;
    z-index: 1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    margin-bottom: 6rem;
    opacity: 0;
    transform: translateY(50px);
    transition: var(--transition-slow);
}

.section.fade-in {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-fiber);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 1rem;
    box-shadow: var(--shadow-fiber);
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--light), var(--fiber-glow));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== FIBER CARDS ===== */
.card {
    background: rgba(23, 43, 77, 0.6);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 255, 136, 0.2);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 255, 136, 0.1), transparent);
    transition: var(--transition-slow);
}

.card:hover::before {
    left: 100%;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-fiber);
    border-color: rgba(0, 255, 136, 0.4);
}

/* ===== FEATURES ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.feature-card {
    position: relative;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
    overflow: hidden;
    border: 1px solid transparent;
}

.feature-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(0, 255, 136, 0.3);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-fiber);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 1rem;
    box-shadow: var(--shadow-fiber);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--light);
}

.feature-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-fiber);
    transform: scaleX(0);
    transition: var(--transition);
}

.feature-card:hover .feature-wave {
    transform: scaleX(1);
}

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

.service-card {
    position: relative;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius);
    padding: 2rem;
    transition: var(--transition);
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.1);
}

.service-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.service-header i {
    font-size: 2rem;
    color: var(--fiber-glow);
    text-shadow: 0 0 10px var(--fiber-glow);
}

.service-header h3 {
    font-size: 1.3rem;
    color: var(--light);
}

.service-indicator {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-fiber);
    transform: scaleX(0);
    transition: var(--transition);
}

.service-card:hover .service-indicator {
    transform: scaleX(1);
}

/* ===== CONTACT ===== */
.contact-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    background: rgba(23, 43, 77, 0.6);
    backdrop-filter: blur(20px);
    border-radius: var(--border-radius);
    padding: 3rem;
    border: 1px solid rgba(0, 255, 136, 0.2);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-fiber);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: var(--shadow-fiber);
}

.contact-details h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--light);
}

.contact-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-animation {
    width: 200px;
    height: 200px;
    background: var(--gradient-fiber);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    box-shadow: var(--shadow-fiber);
    animation: float 3s ease-in-out infinite !important;
}

/* ===== FOOTER ===== */
.footer {
    background: rgba(10, 25, 41, 0.95);
    backdrop-filter: blur(20px);
    border-top: 1px solid rgba(0, 255, 136, 0.3);
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-brand .logo-container {
    justify-content: flex-start;
}

.footer-description {
    margin-top: 1rem;
    opacity: 0.8;
}

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

.footer-column h4 {
    color: var(--fiber-glow);
    margin-bottom: 1rem;
    font-size: 1.1rem;
    text-shadow: 0 0 10px rgba(0, 255, 136, 0.5);
}

.footer-column a {
    display: block;
    color: var(--light);
    text-decoration: none;
    margin-bottom: 0.5rem;
    transition: var(--transition);
    position: relative;
    padding-left: 1rem;
}

.footer-column a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 4px;
    height: 4px;
    background: var(--fiber-glow);
    border-radius: 50%;
    transform: translateY(-50%);
    transition: var(--transition);
}

.footer-column a:hover {
    color: var(--fiber-glow);
    transform: translateX(5px);
}

.footer-column a:hover::before {
    box-shadow: 0 0 10px var(--fiber-glow);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    opacity: 0.7;
}

/* ===== SCROLL TO TOP ===== */
.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--gradient-fiber);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 1000;
    box-shadow: var(--shadow-fiber);
}

.scroll-to-top.show {
    opacity: 1;
    visibility: visible;
}

.scroll-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 30px var(--fiber-glow);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .dropdown-content {
        width: 400px;
    }
    
    .dropdown-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header-container {
        padding: 0 1rem;
        height: 70px;
    }
    
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .contact-card {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .dropdown-content {
        width: 300px;
    }
    
    .dropdown-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== UTILITY CLASSES ===== */
.text-gradient {
    background: var(--gradient-fiber);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--gradient-fiber);
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
    box-shadow: var(--shadow-fiber);
}

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--light);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
}

/* ===== FIBER OPTIC EFFECTS ===== */
.glow-effect {
    text-shadow: 0 0 10px currentColor;
}

.fiber-border {
    border: 1px solid var(--fiber-glow);
    box-shadow: 0 0 10px var(--fiber-glow);
}

/* QUICK FIX FOR DROPDOWN */
.dropdown-content {
    z-index: 9999 !important;
    background: rgba(23, 43, 77, 0.98) !important;
    backdrop-filter: blur(20px) !important;
}

header {
    z-index: 1000 !important;
    position: relative;
}

.fiber-bg {
    z-index: -2 !important;
}

/* Additional Fiber Optic Elements */
.fiber-pulse {
    animation: fiberPulse 2s infinite;
}

.fiber-glow {
    box-shadow: 0 0 20px var(--fiber-glow);
}

.connection-glow {
    filter: drop-shadow(0 0 5px var(--fiber-glow));
}

/* ===== EMERGENCY ANIMATION FIXES ===== */
/* All animations are forced with !important for immediate activation */

/* Force animations for all fiber elements */
*[class*="fiber"] {
    animation-duration: 3s !important;
    animation-iteration-count: infinite !important;
}

/* Immediate section animations */
.section.fade-in {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

/* Counter animation fix */
.stat-number.animated {
    transition: all 0.5s ease !important;
}

/* Mobile menu active state */
.nav-menu.active {
    display: block !important;
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    background: rgba(10, 25, 41, 0.98);
    backdrop-filter: blur(20px);
    padding: 2rem;
    border-top: 1px solid rgba(0, 255, 136, 0.3);
}

.nav-menu.active ul {
    flex-direction: column;
    gap: 1rem;
}

.nav-menu.active .nav-link {
    justify-content: center;
    padding: 1rem;
}

/* Background image fallback */
@media (max-width: 768px) {
    .fiber-bg {
        background: url('../gambar/background2.jpg') center/cover no-repeat;
    }
}

/* ===== EMERGENCY HEADER FIX ===== */
header {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    z-index: 9999 !important;
}

body {
    padding-top: 80px !important;
}

.hero {
    min-height: calc(100vh - 80px) !important;
    padding-top: 0 !important;
}

/* Fix untuk anchor links dengan header fixed */
section {
    scroll-margin-top: 80px;
}

@keyframes nodeGlow {
    0% { 
        transform: scale(1); 
        opacity: 0.7;
        box-shadow: 0 0 10px var(--fiber-glow);
    }
    50% { 
        transform: scale(1.5); 
        opacity: 1;
        box-shadow: 0 0 20px var(--fiber-glow), 0 0 30px var(--fiber-glow);
    }
    100% { 
        transform: scale(1.2); 
        opacity: 0.8;
        box-shadow: 0 0 15px var(--fiber-glow);
    }
}

/* Di style.css - perbaiki bagian fiber-node */
.fiber-node {
    position: absolute;
    width: 12px; /* Sedikit lebih besar */
    height: 12px;
    background: var(--fiber-glow);
    border-radius: 50%;
    box-shadow: 
        0 0 20px var(--fiber-glow),
        0 0 40px rgba(0, 153, 255, 0.3); /* Glow lebih kuat */
    animation: 
        nodeGlow 3s ease-in-out infinite,
        floatAround 8s ease-in-out infinite; /* Tambah animasi gerak */
}

/* Buat setiap node punya timing berbeda */
.fiber-node:nth-child(1) { 
    animation-delay: 0s, 0s; 
    top: 10%; left: 15%;
}
.fiber-node:nth-child(2) { 
    animation-delay: 1s, 2s; 
    top: 30%; right: 20%;
}
.fiber-node:nth-child(3) { 
    animation-delay: 2s, 4s; 
    bottom: 20%; left: 25%;
}
.fiber-node:nth-child(4) { 
    animation-delay: 3s, 6s; 
    bottom: 40%; right: 15%;
}


.fiber-node {
    position: absolute;
    width: 10px;
    height: 10px;
    background: var(--fiber-glow);
    border-radius: 50%;
    box-shadow: 
        0 0 25px var(--fiber-glow),
        0 0 50px rgba(0, 153, 255, 0.4);
    animation: 
        nodeGlow 2s ease-in-out infinite,
        floatAround 15s ease-in-out infinite;
}

/* Gerakan berbeda untuk setiap node */
.fiber-node:nth-child(1) { 
    animation: 
        nodeGlow 2s ease-in-out infinite,
        floatAround 12s ease-in-out infinite;
    top: 15%; left: 10%;
}
.fiber-node:nth-child(2) { 
    animation: 
        nodeGlow 2s ease-in-out infinite 1s,
        bounce 8s ease-in-out infinite;
    top: 25%; right: 15%;
}
.fiber-node:nth-child(3) { 
    animation: 
        nodeGlow 2s ease-in-out infinite 2s,
        orbit 20s linear infinite;
    bottom: 25%; left: 20%;
}
.fiber-node:nth-child(4) { 
    animation: 
        nodeGlow 2s ease-in-out infinite 3s,
        floatAround 10s ease-in-out infinite reverse;
    bottom: 35%; right: 10%;
}

/* ===== ENHANCED FIBER NODES ANIMATION ===== */
.fiber-node {
    width: 12px !important;
    height: 12px !important;
    background: #0099ff !important;
    box-shadow: 
        0 0 20px #0099ff,
        0 0 40px rgba(0, 153, 255, 0.5) !important;
    animation: 
        nodeGlow 3s ease-in-out infinite,
        floatAround 10s ease-in-out infinite !important;
}

.fiber-node:nth-child(1) { animation-delay: 0s, 0s !important; }
.fiber-node:nth-child(2) { animation-delay: 1s, 2s !important; }
.fiber-node:nth-child(3) { animation-delay: 2s, 4s !important; }
.fiber-node:nth-child(4) { animation-delay: 3s, 6s !important; }