/* ==========================================================================
   TJKT SMART NETWORK - STYLESHEET RESMI
   Dikembangkan oleh: M. Athar Hamizan F. (Kelas XI TJKT C, Absen 18, SMKN 2 Surakarta)
   Tema: Modern Dark IT Company, Glassmorphism, Floating Animations & Cyan Accent
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. VARIABLES & UTILITIES DESIGN SYSTEM
   -------------------------------------------------------------------------- */
:root {
    /* Warna Utama & Background Konsisten */
    --bg-dark: #0b0f19;
    --bg-card: rgba(17, 24, 39, 0.75);
    --bg-card-hover: rgba(24, 34, 53, 0.9);
    --bg-input: #1f293d;

    /* Warna Akses & Gradient IT */
    --cyan-glow: #06b6d4;
    --blue-accent: #3b82f6;
    --gradient-accent: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
    --gradient-btn: linear-gradient(90deg, #06b6d4 0%, #2563eb 100%);
    --gradient-card: linear-gradient(180deg, rgba(6, 182, 212, 0.08) 0%, rgba(59, 130, 246, 0.02) 100%);

    /* Warna Teks */
    --text-white: #ffffff;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-dark: #0f172a;

    /* Border & Bayangan */
    --border-glass: 1px solid rgba(255, 255, 255, 0.1);
    --border-cyan: 1px solid rgba(6, 182, 212, 0.3);
    --box-shadow-card: 0 10px 30px rgba(0, 0, 0, 0.4);
    --box-shadow-glow: 0 0 25px rgba(6, 182, 212, 0.3);

    /* Tipografi */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;

    /* Transisi Halus */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset Dasar */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Container Responsif */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-padding {
    padding: 100px 0;
}

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

/* Header Seksi */
.section-header {
    margin-bottom: 50px;
}

.sub-title {
    display: inline-block;
    color: var(--cyan-glow);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 10px;
    padding: 6px 16px;
    background: rgba(6, 182, 212, 0.1);
    border: var(--border-cyan);
    border-radius: 30px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 15px;
}

.section-desc {
    color: var(--text-muted);
    max-width: 650px;
    margin: 0 auto;
    font-size: 1.05rem;
}

.gradient-text {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* --------------------------------------------------------------------------
   2. STICKY NAVBAR MODERN
   -------------------------------------------------------------------------- */
.navbar-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(11, 15, 25, 0.75);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    transition: var(--transition-normal);
}

.navbar-header.scrolled {
    background: rgba(11, 15, 25, 0.95);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-icon {
    width: 42px;
    height: 42px;
    background: var(--gradient-accent);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: 1.3rem;
    box-shadow: var(--box-shadow-glow);
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.brand-title {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--text-white);
    letter-spacing: 0.5px;
}

.brand-title .highlight {
    color: var(--cyan-glow);
}

.brand-sub {
    font-size: 0.65rem;
    color: var(--text-muted);
    letter-spacing: 2px;
    font-weight: 600;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 10px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 8px 16px;
    border-radius: 8px;
    transition: var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-white);
    background: rgba(6, 182, 212, 0.15);
}

.nav-link.active {
    color: var(--cyan-glow);
    font-weight: 600;
}

/* Hamburger Mobile Button */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 20px;
    background: transparent;
    border: none;
    cursor: pointer;
}

.hamburger span {
    width: 100%;
    height: 3px;
    background-color: var(--text-white);
    border-radius: 3px;
    transition: var(--transition-fast);
}

/* --------------------------------------------------------------------------
   3. HERO SECTION & FLOATING ANIMATION
   -------------------------------------------------------------------------- */
.hero-section {
    position: relative;
    padding-top: 150px;
    padding-bottom: 90px;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-bg-glow {
    position: absolute;
    top: 20%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.15) 0%, rgba(59, 130, 246, 0.05) 50%, transparent 70%);
    z-index: 0;
    pointer-events: none;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.badge-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--cyan-glow);
    background: rgba(6, 182, 212, 0.1);
    border: var(--border-cyan);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3.2rem;
    font-weight: 800;
    line-height: 1.15;
    color: var(--text-white);
    margin-bottom: 20px;
}

.hero-description {
    color: var(--text-muted);
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 35px;
    max-width: 540px;
}

.hero-action-btns {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

/* Button Styling */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 26px;
    border-radius: 10px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: var(--transition-normal);
}

.btn-primary {
    background: var(--gradient-btn);
    color: var(--text-white);
    box-shadow: 0 4px 20px rgba(6, 182, 212, 0.35);
}

.btn-primary:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(6, 182, 212, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-white);
    border: var(--border-glass);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-4px);
}

.btn-cyan {
    background: var(--cyan-glow);
    color: var(--text-dark);
    font-weight: 700;
    box-shadow: 0 4px 20px rgba(6, 182, 212, 0.4);
}

.btn-cyan:hover {
    background: #22d3ee;
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(6, 182, 212, 0.6);
}

.btn-whatsapp {
    background: #25d366;
    color: var(--text-white);
    font-weight: 700;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
}

.btn-whatsapp:hover {
    background: #1da851;
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(37, 211, 102, 0.6);
}

.btn-lg {
    padding: 15px 32px;
    font-size: 1.05rem;
}

/* Hero Stats */
.hero-stats {
    display: flex;
    align-items: center;
    gap: 25px;
    padding-top: 25px;
    border-top: var(--border-glass);
}

.stat-item .stat-number {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--cyan-glow);
}

.stat-item .stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.stat-divider {
    width: 1px;
    height: 35px;
    background: rgba(255, 255, 255, 0.1);
}

/* Floating Visual Image & Badges */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
}

.image-wrapper {
    position: relative;
    max-width: 480px;
    width: 100%;
}

.image-wrapper img {
    width: 100%;
    height: auto;
    border-radius: 20px;
    border: var(--border-cyan);
    box-shadow: var(--box-shadow-card);
    transition: var(--transition-normal);
}

.image-wrapper:hover img {
    transform: scale(1.03);
    box-shadow: 0 20px 45px rgba(6, 182, 212, 0.35);
}

/* Animations */
.floating-anim {
    animation: float 3.5s ease-in-out infinite;
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-12px);
    }

    100% {
        transform: translateY(0px);
    }
}

.floating-badge {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 18px;
    background: rgba(17, 24, 39, 0.9);
    backdrop-filter: blur(12px);
    border: var(--border-glass);
    border-radius: 14px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    z-index: 2;
    transition: var(--transition-fast);
}

.floating-badge:hover {
    transform: scale(1.05);
}

.floating-badge i {
    font-size: 1.5rem;
}

.floating-badge h4 {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-white);
}

.floating-badge p {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.badge-1 {
    top: 20px;
    left: -25px;
}

.badge-2 {
    bottom: 30px;
    right: -20px;
}

.text-cyan {
    color: var(--cyan-glow);
}

.text-blue {
    color: var(--blue-accent);
}

/* --------------------------------------------------------------------------
   4. LAYANAN SECTION (CARDS MODERN)
   -------------------------------------------------------------------------- */
.layanan-section {
    background: linear-gradient(180deg, var(--bg-dark) 0%, #0f172a 100%);
    position: relative;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 25px;
}

.service-card {
    position: relative;
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: var(--border-glass);
    border-radius: 16px;
    padding: 35px 25px;
    transition: var(--transition-normal);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-10px);
    background: var(--bg-card-hover);
    border-color: var(--cyan-glow);
    box-shadow: 0 15px 35px rgba(6, 182, 212, 0.2);
}

.card-icon {
    width: 60px;
    height: 60px;
    background: rgba(6, 182, 212, 0.12);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--cyan-glow);
    font-size: 1.8rem;
    margin-bottom: 20px;
    transition: var(--transition-fast);
}

.service-card:hover .card-icon {
    background: var(--gradient-accent);
    color: var(--text-white);
    box-shadow: var(--box-shadow-glow);
    transform: scale(1.1);
}

.card-title {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 12px;
}

.card-desc {
    color: var(--text-muted);
    font-size: 0.92rem;
    line-height: 1.6;
    margin-bottom: 20px;
    flex-grow: 1;
}

.card-features {
    list-style: none;
    margin-bottom: 25px;
}

.card-features li {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-main);
    margin-bottom: 8px;
}

.card-features li i {
    color: var(--cyan-glow);
    font-size: 0.8rem;
}

.card-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--cyan-glow);
    text-decoration: none;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

.card-btn:hover {
    gap: 12px;
    color: var(--text-white);
}

/* --------------------------------------------------------------------------
   5. KALKULATOR ESTIMASI HARGA
   -------------------------------------------------------------------------- */
.kalkulator-section {
    background: var(--bg-dark);
}

.calc-wrapper {
    max-width: 900px;
    margin: 0 auto;
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    border: var(--border-glass);
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--box-shadow-card);
}

.form-group {
    margin-bottom: 25px;
}

.form-label {
    display: block;
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: 10px;
    font-size: 0.95rem;
}

.form-label i {
    color: var(--cyan-glow);
    margin-right: 6px;
}

.calc-checkbox-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.checkbox-card {
    position: relative;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px;
    background: rgba(255, 255, 255, 0.03);
    border: var(--border-glass);
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.checkbox-card:hover {
    background: rgba(6, 182, 212, 0.08);
    border-color: rgba(6, 182, 212, 0.4);
}

.checkbox-card input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.checkbox-custom {
    width: 20px;
    height: 20px;
    border: 2px solid var(--text-muted);
    border-radius: 5px;
    transition: var(--transition-fast);
    position: relative;
}

.checkbox-card input[type="checkbox"]:checked~.checkbox-custom {
    background: var(--cyan-glow);
    border-color: var(--cyan-glow);
}

.checkbox-card input[type="checkbox"]:checked~.checkbox-custom::after {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    color: var(--text-dark);
    font-size: 12px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.checkbox-info {
    display: flex;
    flex-direction: column;
}

.checkbox-info .title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-white);
}

.checkbox-info .price {
    font-size: 0.75rem;
    color: var(--cyan-glow);
}

.calc-inputs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-input);
    border: var(--border-glass);
    border-radius: 10px;
    color: var(--text-white);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--cyan-glow);
    box-shadow: 0 0 15px rgba(6, 182, 212, 0.25);
}

.field-note {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 5px;
}

/* Calculation Result Box */
.calc-result-box {
    margin-top: 35px;
    padding: 25px;
    background: rgba(6, 182, 212, 0.05);
    border: var(--border-cyan);
    border-radius: 14px;
}

.result-header {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--cyan-glow);
    font-family: var(--font-heading);
    margin-bottom: 15px;
    border-bottom: var(--border-glass);
    padding-bottom: 10px;
}

.result-breakdown {
    margin-bottom: 20px;
}

.breakdown-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    color: var(--text-muted);
    padding: 6px 0;
}

.result-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-white);
    padding-top: 15px;
    border-top: var(--border-glass);
    margin-bottom: 20px;
}

.total-amount {
    font-size: 1.8rem;
    color: var(--cyan-glow);
}

.result-footer {
    text-align: center;
}

.result-footer p {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 15px;
}

/* --------------------------------------------------------------------------
   6. SPEED TEST NETWORK
   -------------------------------------------------------------------------- */
.speedtest-section {
    background: linear-gradient(180deg, #0f172a 0%, var(--bg-dark) 100%);
}

.speedtest-card {
    max-width: 800px;
    margin: 0 auto;
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    border: var(--border-glass);
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--box-shadow-card);
}

/* Gauge Speedometer */
.gauge-container {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
}

.gauge-dial {
    position: relative;
    width: 220px;
    height: 110px;
    border-top-left-radius: 110px;
    border-top-right-radius: 110px;
    background: conic-gradient(from 270deg at 50% 100%, var(--cyan-glow) 0deg, var(--blue-accent) 90deg, rgba(255, 255, 255, 0.1) 90deg 180deg);
    display: flex;
    justify-content: center;
    align-items: flex-end;
    overflow: hidden;
}

.gauge-center {
    width: 170px;
    height: 85px;
    border-top-left-radius: 85px;
    border-top-right-radius: 85px;
    background: var(--bg-dark);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    padding-bottom: 10px;
    z-index: 2;
}

.gauge-value {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--text-white);
    line-height: 1;
}

.gauge-unit {
    font-size: 0.75rem;
    color: var(--cyan-glow);
    font-weight: 600;
    text-transform: uppercase;
}

.gauge-needle {
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 4px;
    height: 90px;
    background: var(--cyan-glow);
    transform-origin: bottom center;
    transform: translateX(-50%) rotate(-90deg);
    transition: transform 0.1s ease-out;
    box-shadow: 0 0 10px var(--cyan-glow);
    z-index: 3;
}

.speedtest-status {
    text-align: center;
    margin-bottom: 35px;
}

.status-text {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.progress-bar-bg {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar-fill {
    width: 0%;
    height: 100%;
    background: var(--gradient-btn);
    border-radius: 4px;
    transition: width 0.2s ease;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 15px;
    margin-bottom: 35px;
}

.metric-card {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: rgba(255, 255, 255, 0.03);
    border: var(--border-glass);
    border-radius: 12px;
}

.metric-icon {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.icon-ping {
    background: rgba(234, 179, 8, 0.15);
    color: #eab308;
}

.icon-download {
    background: rgba(6, 182, 212, 0.15);
    color: var(--cyan-glow);
}

.icon-upload {
    background: rgba(59, 130, 246, 0.15);
    color: var(--blue-accent);
}

.icon-jitter {
    background: rgba(168, 85, 247, 0.15);
    color: #a855f7;
}

.metric-info {
    display: flex;
    flex-direction: column;
}

.metric-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.metric-val {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-white);
}

.metric-val small {
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   7. BIODATA SISWA PEMBUAT
   -------------------------------------------------------------------------- */
.biodata-section {
    background: var(--bg-dark);
}

.biodata-card-wrapper {
    max-width: 750px;
    margin: 0 auto;
}

.biodata-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    border: var(--border-cyan);
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--box-shadow-card);
    position: relative;
    overflow: hidden;
}

.biodata-header {
    display: flex;
    align-items: center;
    gap: 20px;
    padding-bottom: 25px;
    border-bottom: var(--border-glass);
    margin-bottom: 25px;
}

.profile-avatar {
    position: relative;
    width: 80px;
    height: 80px;
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: 2.2rem;
    box-shadow: var(--box-shadow-glow);
}

.online-indicator {
    position: absolute;
    bottom: 4px;
    right: 4px;
    width: 16px;
    height: 16px;
    background: #22c55e;
    border: 3px solid var(--bg-dark);
    border-radius: 50%;
}

.profile-title h3 {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 5px;
}

.role-tag {
    font-size: 0.85rem;
    color: var(--cyan-glow);
    font-weight: 600;
}

.biodata-details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.bio-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 10px;
    border: var(--border-glass);
}

.bio-full {
    grid-column: 1 / -1;
}

.bio-label {
    font-size: 0.78rem;
    color: var(--text-muted);
}

.bio-label i {
    color: var(--cyan-glow);
    margin-right: 5px;
}

.bio-value {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-white);
}

.badge-absen {
    display: inline-block;
    color: var(--cyan-glow);
    font-weight: 800;
    font-size: 1.2rem;
}

.skills-tags {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    padding-top: 20px;
    border-top: var(--border-glass);
}

.skill-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
}

.tag {
    font-size: 0.78rem;
    color: var(--text-main);
    background: rgba(6, 182, 212, 0.1);
    border: var(--border-cyan);
    padding: 4px 12px;
    border-radius: 20px;
}

.tag i {
    color: var(--cyan-glow);
    margin-right: 4px;
}

/* --------------------------------------------------------------------------
   8. KONTAK INTERAKTIF
   -------------------------------------------------------------------------- */
.kontak-section {
    background: linear-gradient(180deg, var(--bg-dark) 0%, #060b14 100%);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 25px;
    margin-bottom: 50px;
}

.contact-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 35px 25px;
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: var(--border-glass);
    border-radius: 18px;
    text-decoration: none;
    transition: var(--transition-normal);
}

.contact-card:hover {
    transform: translateY(-8px);
    border-color: var(--cyan-glow);
    box-shadow: 0 15px 35px rgba(6, 182, 212, 0.25);
}

.contact-icon {
    width: 65px;
    height: 65px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 20px;
    transition: var(--transition-fast);
}

.card-wa .contact-icon {
    background: rgba(37, 211, 102, 0.15);
    color: #25d366;
}

.card-email .contact-icon {
    background: rgba(6, 182, 212, 0.15);
    color: var(--cyan-glow);
}

.card-maps .contact-icon {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
}

.contact-card:hover .contact-icon {
    transform: scale(1.1);
}

.contact-card h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    color: var(--text-white);
    margin-bottom: 8px;
}

.contact-value {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.contact-action {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--cyan-glow);
}

.contact-form-wrapper {
    max-width: 750px;
    margin: 0 auto;
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    border: var(--border-glass);
    border-radius: 18px;
    padding: 35px;
}

.contact-form h3 {
    font-family: var(--font-heading);
    color: var(--text-white);
    margin-bottom: 25px;
    font-size: 1.3rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* --------------------------------------------------------------------------
   9. FOOTER
   -------------------------------------------------------------------------- */
.footer {
    background: #04070e;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 60px;
    padding-bottom: 30px;
}

.footer-container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 15px;
    max-width: 320px;
}

.footer-links h4,
.footer-contact h4 {
    font-family: var(--font-heading);
    color: var(--text-white);
    font-size: 1.1rem;
    margin-bottom: 20px;
}

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

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--cyan-glow);
    padding-left: 5px;
}

.footer-contact p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 10px;

    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-contact i {
    color: var(--cyan-glow);
}

.footer-bottom {
    padding-top: 25px;
    border-top: var(--border-glass);
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* --------------------------------------------------------------------------
   10. MEDIA QUERIES (RESPONSIF MOBILE & TABLET)
   -------------------------------------------------------------------------- */
@media (max-width: 992px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-description {
        margin: 0 auto 35px auto;
    }

    .hero-action-btns {
        justify-content: center;
    }

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

    .badge-1 {
        left: 10px;
    }

    .badge-2 {
        right: 10px;
    }

    .footer-container {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: rgba(11, 15, 25, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 20px;
        transition: var(--transition-normal);
    }

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

    .nav-link {
        font-size: 1.1rem;
        padding: 12px 24px;
    }

    .hero-title {
        font-size: 2.3rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .calc-wrapper,
    .speedtest-card,
    .biodata-card,
    .contact-form-wrapper {
        padding: 25px 18px;
    }
}

/* ==========================================================================
   AI CHATBOT ASSISTANT
   Widget asisten AI mengambang (floating), menyatu dengan tema TJKT Smart Network
   ========================================================================== */

.chatbot-wrapper {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 16px;
    font-family: var(--font-body);
}

/* --- Tombol Floating --- */
.chatbot-toggle-btn {
    position: relative;
    width: 62px;
    height: 62px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    background: var(--gradient-btn);
    color: var(--text-white);
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--box-shadow-glow), 0 8px 20px rgba(0, 0, 0, 0.35);
    transition: var(--transition-normal);
}

.chatbot-toggle-btn:hover {
    transform: translateY(-4px) scale(1.05);
}

.chatbot-icon-open,
.chatbot-icon-close {
    position: absolute;
    transition: var(--transition-normal);
}

.chatbot-icon-close {
    opacity: 0;
    transform: rotate(-90deg) scale(0.5);
}

.chatbot-icon-open {
    opacity: 1;
    transform: rotate(0) scale(1);
}

.chatbot-wrapper.chat-open .chatbot-icon-open {
    opacity: 0;
    transform: rotate(90deg) scale(0.5);
}

.chatbot-wrapper.chat-open .chatbot-icon-close {
    opacity: 1;
    transform: rotate(0) scale(1);
}

.chatbot-ping {
    position: absolute;
    top: -3px;
    right: -3px;
    width: 14px;
    height: 14px;
    background: #22c55e;
    border: 2px solid var(--bg-dark);
    border-radius: 50%;
    animation: chatbotPing 2s infinite;
}

.chatbot-wrapper.chat-open .chatbot-ping {
    display: none;
}

@keyframes chatbotPing {
    0% {
        box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.6);
    }

    70% {
        box-shadow: 0 0 0 10px rgba(34, 197, 94, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(34, 197, 94, 0);
    }
}

/* --- Jendela Chat --- */
.chatbot-window {
    width: 360px;
    max-width: calc(100vw - 32px);
    height: 500px;
    max-height: calc(100vh - 120px);
    background: var(--bg-card);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border: var(--border-cyan);
    border-radius: 20px;
    box-shadow: var(--box-shadow-card);
    display: flex;
    flex-direction: column;
    overflow: hidden;

    /* Animasi buka/tutup */
    opacity: 0;
    transform: translateY(24px) scale(0.94);
    pointer-events: none;
    transform-origin: bottom right;
    transition: opacity 0.3s ease, transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.chatbot-wrapper.chat-open .chatbot-window {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

/* --- Header --- */
.chatbot-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 18px;
    background: var(--gradient-accent);
    flex-shrink: 0;
}

.chatbot-header-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.chatbot-avatar {
    position: relative;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.chatbot-avatar .online-indicator {
    position: absolute;
    bottom: -1px;
    right: -1px;
    width: 10px;
    height: 10px;
    background: #22c55e;
    border: 2px solid #0891b2;
    border-radius: 50%;
}

.chatbot-header-info h4 {
    color: var(--text-white);
    font-family: var(--font-heading);
    font-size: 0.98rem;
    font-weight: 700;
    margin: 0;
}

.chatbot-header-info p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    gap: 5px;
    margin: 2px 0 0;
}

.dot-online {
    width: 6px;
    height: 6px;
    background: #22c55e;
    border-radius: 50%;
    display: inline-block;
}

.chatbot-close-btn {
    background: rgba(255, 255, 255, 0.15);
    border: none;
    color: var(--text-white);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.chatbot-close-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(90deg);
}

/* --- Body / Isi Percakapan --- */
.chatbot-body {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    scroll-behavior: smooth;
}

.chatbot-body::-webkit-scrollbar {
    width: 5px;
}

.chatbot-body::-webkit-scrollbar-thumb {
    background: rgba(6, 182, 212, 0.4);
    border-radius: 10px;
}

.chat-msg {
    max-width: 82%;
    padding: 10px 14px;
    border-radius: 14px;
    font-size: 0.85rem;
    line-height: 1.5;
    animation: chatMsgIn 0.3s ease;
    word-wrap: break-word;
}

@keyframes chatMsgIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.chat-msg.bot {
    align-self: flex-start;
    background: var(--bg-input);
    color: var(--text-main);
    border-bottom-left-radius: 4px;
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.chat-msg.user {
    align-self: flex-end;
    background: var(--gradient-btn);
    color: var(--text-white);
    border-bottom-right-radius: 4px;
}

.chat-msg a {
    color: var(--cyan-glow);
    font-weight: 600;
    text-decoration: underline;
}

.chat-msg.user a {
    color: var(--text-white);
}

/* Indikator "sedang mengetik" */
.chat-typing {
    align-self: flex-start;
    display: flex;
    gap: 4px;
    padding: 12px 16px;
    background: var(--bg-input);
    border-radius: 14px;
    border-bottom-left-radius: 4px;
}

.chat-typing span {
    width: 6px;
    height: 6px;
    background: var(--text-muted);
    border-radius: 50%;
    animation: typingBounce 1.2s infinite ease-in-out;
}

.chat-typing span:nth-child(2) {
    animation-delay: 0.15s;
}

.chat-typing span:nth-child(3) {
    animation-delay: 0.3s;
}

@keyframes typingBounce {

    0%,
    60%,
    100% {
        transform: translateY(0);
        opacity: 0.5;
    }

    30% {
        transform: translateY(-5px);
        opacity: 1;
    }
}

/* --- Quick Replies --- */
.chatbot-quick-replies {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 0 16px 12px;
    flex-shrink: 0;
}

.quick-reply-chip {
    background: rgba(6, 182, 212, 0.1);
    border: 1px solid rgba(6, 182, 212, 0.35);
    color: var(--cyan-glow);
    font-size: 0.72rem;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: 30px;
    cursor: pointer;
    white-space: nowrap;
    transition: var(--transition-fast);
    font-family: var(--font-body);
}

.quick-reply-chip:hover {
    background: var(--cyan-glow);
    color: var(--text-dark);
}

/* --- Input Area --- */
.chatbot-input-area {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 14px;
    border-top: var(--border-glass);
    background: rgba(255, 255, 255, 0.02);
    flex-shrink: 0;
}

.chatbot-input {
    flex: 1;
    background: var(--bg-input);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--text-main);
    padding: 10px 14px;
    border-radius: 30px;
    font-size: 0.85rem;
    font-family: var(--font-body);
    outline: none;
    transition: var(--transition-fast);
}

.chatbot-input:focus {
    border-color: var(--cyan-glow);
    box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.15);
}

.chatbot-input::placeholder {
    color: var(--text-muted);
}

.chatbot-send-btn {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: none;
    background: var(--gradient-btn);
    color: var(--text-white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: var(--transition-fast);
}

.chatbot-send-btn:hover {
    transform: scale(1.08);
    box-shadow: var(--box-shadow-glow);
}

.chatbot-send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* --- Responsif Mobile --- */
@media (max-width: 480px) {
    .chatbot-wrapper {
        bottom: 16px;
        right: 16px;
    }

    .chatbot-window {
        width: calc(100vw - 24px);
        height: calc(100vh - 140px);
        border-radius: 18px;
    }

    .chatbot-toggle-btn {
        width: 56px;
        height: 56px;
        font-size: 1.35rem;
    }

    .chatbot-quick-replies {
        display: none;
    }
}

/* ==========================================================================
   CUSTOM CURSOR UNIK CYBER
   ========================================================================== */
@media (hover: hover) and (pointer: fine) {
    body {
        cursor: default;
    }
    
    .custom-cursor-dot {
        width: 8px;
        height: 8px;
        background: var(--cyan-glow);
        border-radius: 50%;
        position: fixed;
        top: 0;
        left: 0;
        pointer-events: none;
        z-index: 99999;
        transform: translate(-50%, -50%);
        transition: width 0.2s ease, height 0.2s ease, background 0.2s ease;
        box-shadow: 0 0 10px var(--cyan-glow);
    }
    
    .custom-cursor-outline {
        width: 36px;
        height: 36px;
        border: 2px solid rgba(6, 182, 212, 0.6);
        border-radius: 50%;
        position: fixed;
        top: 0;
        left: 0;
        pointer-events: none;
        z-index: 99998;
        transform: translate(-50%, -50%);
        transition: width 0.25s cubic-bezier(0.25, 1, 0.5, 1), height 0.25s cubic-bezier(0.25, 1, 0.5, 1), border-color 0.2s ease, background 0.2s ease;
        box-shadow: 0 0 15px rgba(6, 182, 212, 0.25);
    }
    
    body.cursor-hover .custom-cursor-dot {
        width: 12px;
        height: 12px;
        background: #3b82f6;
        box-shadow: 0 0 14px #3b82f6;
    }
    
    body.cursor-hover .custom-cursor-outline {
        width: 52px;
        height: 52px;
        border-color: var(--cyan-glow);
        background: rgba(6, 182, 212, 0.12);
        box-shadow: 0 0 25px rgba(6, 182, 212, 0.4);
    }
    
    body.cursor-active .custom-cursor-outline {
        width: 28px;
        height: 28px;
        background: rgba(6, 182, 212, 0.25);
    }
}

@media (hover: none) or (pointer: coarse) {
    .custom-cursor-dot, .custom-cursor-outline {
        display: none !important;
    }
}

/* ==========================================================================
   LOADING SCREEN / PRELOADER CYBER
   ========================================================================== */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--bg-dark);
    z-index: 999999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.6s ease;
}

.preloader.fade-out {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.preloader-content {
    text-align: center;
    max-width: 320px;
    width: 90%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.loader-icon-wrapper {
    position: relative;
    width: 90px;
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.loader-logo {
    font-size: 2.2rem;
    color: var(--cyan-glow);
    animation: loaderPulse 1.5s infinite ease-in-out;
}

.loader-ring {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 3px solid rgba(6, 182, 212, 0.15);
    border-top: 3px solid var(--cyan-glow);
    border-right: 3px solid var(--blue-accent);
    border-radius: 50%;
    animation: loaderSpin 1.2s linear infinite;
}

@keyframes loaderSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes loaderPulse {
    0%, 100% { transform: scale(1); filter: drop-shadow(0 0 8px rgba(6, 182, 212, 0.6)); }
    50% { transform: scale(1.12); filter: drop-shadow(0 0 18px rgba(6, 182, 212, 0.9)); }
}

.loader-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: 1.5px;
    color: var(--text-white);
    margin-bottom: 16px;
}

.loader-progress-bar {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 12px;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.3);
}

.loader-progress {
    width: 0%;
    height: 100%;
    background: var(--gradient-accent);
    border-radius: 10px;
    transition: width 0.3s ease-out;
    box-shadow: 0 0 12px var(--cyan-glow);
}

.loader-status {
    font-family: var(--font-body);
    font-size: 0.82rem;
    color: var(--text-muted);
}

/* ==========================================================================
   THEME TOGGLE BUTTON & LIGHT MODE STYLES
   ========================================================================== */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.theme-toggle-btn {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--cyan-glow);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.theme-toggle-btn:hover {
    background: rgba(6, 182, 212, 0.15);
    border-color: var(--cyan-glow);
    transform: scale(1.08) rotate(15deg);
    box-shadow: 0 0 15px rgba(6, 182, 212, 0.3);
}

.theme-toggle-btn .icon-moon,
.theme-toggle-btn .icon-sun {
    transition: transform 0.4s ease, opacity 0.4s ease;
    position: absolute;
}

[data-theme="dark"] .theme-toggle-btn .icon-sun {
    opacity: 0;
    transform: translateY(20px) rotate(90deg);
}

[data-theme="dark"] .theme-toggle-btn .icon-moon {
    opacity: 1;
    transform: translateY(0) rotate(0);
}

[data-theme="light"] .theme-toggle-btn .icon-moon {
    opacity: 0;
    transform: translateY(-20px) rotate(-90deg);
}

[data-theme="light"] .theme-toggle-btn .icon-sun {
    opacity: 1;
    color: #f59e0b;
    transform: translateY(0) rotate(0);
}

/* Light Mode Overrides */
[data-theme="light"] {
    --bg-dark: #f8fafc;
    --bg-card: rgba(255, 255, 255, 0.88);
    --bg-card-hover: rgba(255, 255, 255, 0.98);
    --bg-input: #edf2f7;

    --cyan-glow: #0284c7;
    --blue-accent: #2563eb;
    --gradient-accent: linear-gradient(135deg, #0284c7 0%, #2563eb 100%);
    --gradient-btn: linear-gradient(90deg, #0284c7 0%, #1d4ed8 100%);
    --gradient-card: linear-gradient(180deg, rgba(2, 132, 199, 0.05) 0%, rgba(37, 99, 235, 0.02) 100%);

    --text-white: #0f172a;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --text-dark: #f8fafc;

    --border-glass: 1px solid rgba(0, 0, 0, 0.08);
    --border-cyan: 1px solid rgba(2, 132, 199, 0.3);
    --box-shadow-card: 0 10px 30px rgba(0, 0, 0, 0.06);
    --box-shadow-glow: 0 0 20px rgba(2, 132, 199, 0.2);
}

[data-theme="light"] .navbar-header {
    background: rgba(255, 255, 255, 0.88);
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .navbar-header.scrolled {
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

[data-theme="light"] .hero-bg-glow {
    background: radial-gradient(circle, rgba(2, 132, 199, 0.12) 0%, rgba(255, 255, 255, 0) 70%);
}

[data-theme="light"] .hero-card-badge {
    background: rgba(2, 132, 199, 0.1);
    color: #0284c7;
}

[data-theme="light"] .stat-card,
[data-theme="light"] .layanan-card,
[data-theme="light"] .calc-card,
[data-theme="light"] .speedtest-card,
[data-theme="light"] .biodata-card,
[data-theme="light"] .contact-card,
[data-theme="light"] .contact-form-card {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .chatbot-window {
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid rgba(0, 0, 0, 0.1);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

[data-theme="light"] .chatbot-header {
    background: rgba(241, 245, 249, 0.95);
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .chat-msg.bot {
    background: #e2e8f0;
    color: #0f172a;
}

[data-theme="light"] .chat-msg.user {
    background: linear-gradient(135deg, #0284c7 0%, #2563eb 100%);
    color: #ffffff;
}

[data-theme="light"] .quick-reply-chip {
    background: rgba(2, 132, 199, 0.08);
    border-color: rgba(2, 132, 199, 0.25);
    color: #0284c7;
}

[data-theme="light"] .quick-reply-chip:hover {
    background: #0284c7;
    color: #ffffff;
}

[data-theme="light"] .hamburger span {
    background: #0f172a;
}

/* ==========================================================================
   CANVAS BACKGROUND PARTIKEL TEKNOLOGI
   ========================================================================== */
.tech-particles-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 0;
    opacity: 0.85;
    transition: opacity 0.4s ease;
}

[data-theme="light"] .tech-particles-canvas {
    opacity: 0.65;
}

/* ==========================================================================
   SEKSI EDUKASI & AI SPECIALIST JARINGAN
   ========================================================================== */
.edukasi-section {
    position: relative;
    z-index: 1;
}

.edukasi-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 35px;
    flex-wrap: wrap;
}

.tab-btn {
    background: rgba(255, 255, 255, 0.05);
    border: var(--border-glass);
    color: var(--text-muted);
    padding: 12px 24px;
    border-radius: 30px;
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.tab-btn:hover {
    background: rgba(6, 182, 212, 0.15);
    color: var(--cyan-glow);
    border-color: var(--cyan-glow);
}

.tab-btn.active {
    background: var(--gradient-btn);
    color: var(--text-white);
    border-color: transparent;
    box-shadow: var(--box-shadow-glow);
}

.tab-content {
    display: none;
    animation: fadeIn 0.4s ease;
}

.tab-content.active {
    display: block;
}

/* --- Grid Card Edukasi --- */
.edukasi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 25px;
}

.edukasi-card {
    background: var(--bg-card);
    border: var(--border-glass);
    border-radius: 20px;
    padding: 30px 24px;
    position: relative;
    transition: var(--transition-normal);
    backdrop-filter: blur(16px);
    display: flex;
    flex-direction: column;
}

.edukasi-card:hover {
    transform: translateY(-8px);
    border-color: var(--cyan-glow);
    box-shadow: var(--box-shadow-glow);
}

.card-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(6, 182, 212, 0.15);
    color: var(--cyan-glow);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 20px;
    border: 1px solid rgba(6, 182, 212, 0.3);
}

.edukasi-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    background: var(--gradient-card);
    border: var(--border-cyan);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--cyan-glow);
    margin-bottom: 20px;
}

.edukasi-card h3 {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    color: var(--text-white);
    margin-bottom: 10px;
}

.edukasi-card p {
    color: var(--text-muted);
    font-size: 0.92rem;
    line-height: 1.6;
    margin-bottom: 24px;
    flex: 1;
}

.btn-learn-more {
    background: transparent;
    border: none;
    color: var(--cyan-glow);
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition-fast);
}

.btn-learn-more:hover {
    color: var(--text-white);
    transform: translateX(4px);
}

/* --- Box Penjelasan AI Modal --- */
.ai-explanation-box {
    margin-top: 35px;
    background: var(--bg-card);
    border: 1px solid var(--cyan-glow);
    border-radius: 24px;
    padding: 30px;
    box-shadow: var(--box-shadow-glow);
    backdrop-filter: blur(20px);
    animation: slideUp 0.4s ease;
}

.explanation-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 16px;
    border-bottom: var(--border-glass);
    margin-bottom: 20px;
}

.exp-title {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--cyan-glow);
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn-close-exp {
    background: rgba(255, 255, 255, 0.08);
    border: none;
    color: var(--text-muted);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-close-exp:hover {
    background: #ef4444;
    color: #ffffff;
}

.explanation-body {
    color: var(--text-main);
    font-size: 0.98rem;
    line-height: 1.8;
}

.explanation-body h4 {
    color: var(--cyan-glow);
    margin: 16px 0 8px;
    font-family: var(--font-heading);
}

.explanation-body ul {
    margin-left: 20px;
    margin-bottom: 12px;
}

.explanation-body li {
    margin-bottom: 6px;
}

/* --- AI Troubleshooting Wrapper --- */
.troubleshoot-wrapper {
    background: var(--bg-card);
    border: var(--border-glass);
    border-radius: 24px;
    padding: 35px;
    backdrop-filter: blur(16px);
}

.troubleshoot-header h3 {
    font-family: var(--font-heading);
    font-size: 1.45rem;
    color: var(--text-white);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.troubleshoot-header p {
    color: var(--text-muted);
    max-width: 620px;
    margin: 0 auto 28px;
    font-size: 0.95rem;
}

.problem-chips-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-bottom: 25px;
}

.problem-chip {
    background: rgba(6, 182, 212, 0.08);
    border: 1px solid rgba(6, 182, 212, 0.3);
    color: var(--cyan-glow);
    padding: 10px 18px;
    border-radius: 30px;
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.problem-chip:hover {
    background: var(--cyan-glow);
    color: var(--text-dark);
    transform: translateY(-2px);
}

.troubleshoot-form {
    max-width: 680px;
    margin: 0 auto 30px;
}

.input-group {
    display: flex;
    gap: 10px;
    background: var(--bg-input);
    padding: 6px;
    border-radius: 40px;
    border: var(--border-glass);
}

.form-input {
    flex: 1;
    background: transparent;
    border: none;
    padding: 12px 20px;
    color: var(--text-main);
    font-family: var(--font-body);
    font-size: 0.95rem;
    outline: none;
}

.form-input::placeholder {
    color: var(--text-muted);
}

/* Card Hasil Diagnosa AI */
.diagnostic-result-card {
    background: rgba(11, 15, 25, 0.7);
    border: 1px solid var(--cyan-glow);
    border-radius: 20px;
    padding: 28px;
    margin-top: 20px;
    animation: fadeIn 0.4s ease;
}

.result-header {
    margin-bottom: 18px;
}

.result-tag {
    background: var(--gradient-btn);
    color: var(--text-white);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 20px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 8px;
}

.result-header h4 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    color: var(--text-white);
}

.result-body {
    color: var(--text-main);
    font-size: 0.95rem;
    line-height: 1.75;
    margin-bottom: 20px;
}

.result-body .diag-section {
    margin-bottom: 16px;
}

.result-body h5 {
    color: var(--cyan-glow);
    font-family: var(--font-heading);
    font-size: 1.05rem;
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-whatsapp {
    background: #25d366;
    color: #ffffff;
    border-radius: 30px;
    padding: 12px 24px;
    font-family: var(--font-heading);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    transition: var(--transition-fast);
}

.btn-whatsapp:hover {
    background: #1da851;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
}

/* --- QnA Specialist Hub --- */
.qna-container {
    background: var(--bg-card);
    border: var(--border-glass);
    border-radius: 24px;
    padding: 35px;
    backdrop-filter: blur(16px);
}

.search-title h3 {
    font-family: var(--font-heading);
    font-size: 1.45rem;
    color: var(--text-white);
    margin-bottom: 8px;
}

.search-title p {
    color: var(--text-muted);
    margin-bottom: 25px;
}

.qna-form {
    max-width: 680px;
    margin: 0 auto 25px;
}

.popular-questions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.q-chip {
    background: rgba(255, 255, 255, 0.05);
    border: var(--border-glass);
    color: var(--text-main);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.q-chip:hover {
    background: var(--cyan-glow);
    color: var(--text-dark);
}

.qna-response-card {
    background: rgba(11, 15, 25, 0.8);
    border: 1px solid var(--cyan-glow);
    border-radius: 20px;
    padding: 25px;
    margin-top: 25px;
    animation: fadeIn 0.3s ease;
}

.qna-response-header {
    color: var(--cyan-glow);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.qna-response-content {
    color: var(--text-main);
    line-height: 1.7;
    font-size: 0.96rem;
}