/* CSS Variables */
:root {
    /* Colors */
    --color-bg: #0B0F1A;
    --color-surface: rgba(255, 255, 255, 0.08);
    --color-surface-hover: rgba(255, 255, 255, 0.12);
    --color-text-primary: #FFFFFF;
    --color-text-secondary: rgba(255, 255, 255, 0.7);
    --color-text-muted: rgba(255, 255, 255, 0.5);
    --color-accent-blue: #00E5FF;
    --color-accent-purple: #9B5CFF;
    --color-border: rgba(255, 255, 255, 0.1);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--color-accent-blue), var(--color-accent-purple));
    --gradient-subtle: linear-gradient(135deg, rgba(0, 229, 255, 0.1), rgba(155, 92, 255, 0.1));
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    
    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Shadows & Glows */
    --glow-primary: 0 0 20px rgba(0, 229, 255, 0.3);
    --glow-secondary: 0 0 20px rgba(155, 92, 255, 0.3);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

/* Skip Link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--color-accent-blue);
    color: var(--color-bg);
    padding: 8px;
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: top 0.3s;
    z-index: 1000;
}

.skip-link:focus {
    top: 6px;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-sm);
}

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

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); }

.section-title {
    text-align: center;
    margin-bottom: var(--space-2xl);
    background: var(--gradient-primary);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: all 0.3s ease;
    cursor: pointer;
    border: 1px solid transparent;
    font-size: 0.9rem;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-bg);
    box-shadow: var(--glow-primary);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--glow-primary), 0 8px 25px rgba(0, 229, 255, 0.2);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-primary);
    border-color: var(--color-border);
    backdrop-filter: blur(10px);
}

.btn-ghost:hover {
    background: var(--color-surface-hover);
    border-color: var(--color-accent-blue);
    box-shadow: var(--glow-primary);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(11, 15, 26, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    transition: all 0.3s ease;
}

.header-scrolled {
    background: rgba(11, 15, 26, 0.95);
    box-shadow: var(--shadow-card);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-sm);
    min-height: 70px;
}

.logo {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    background: var(--gradient-primary);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: none;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--space-lg);
}

.nav-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover, .nav-link:focus {
    color: var(--color-accent-blue);
}

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

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

.nav-cta {
    margin-left: var(--space-md);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--space-xs);
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--color-text-primary);
    margin: 2px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 70px;
}

.hero-content {
    max-width: 600px;
    z-index: 2;
    position: relative;
}

.hero-title {
    margin-bottom: var(--space-md);
    animation: fadeInUp 0.8s ease-out;
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-cta {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-visual {
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    pointer-events: none;
}

.glow-orb {
    position: absolute;
    top: 30%;
    right: 20%;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: var(--gradient-primary);
    filter: blur(100px);
    opacity: 0.3;
    animation: pulse 4s ease-in-out infinite;
}

.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(0, 229, 255, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 229, 255, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.3;
}

/* Social Proof */
.social-proof {
    padding: var(--space-2xl) 0;
    text-align: center;
    border-bottom: 1px solid var(--color-border);
}

.social-proof-title {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-bottom: var(--space-lg);
}

.brand-logos {
    display: flex;
    justify-content: center;
    gap: var(--space-xl);
    flex-wrap: wrap;
}

.brand-logo {
    padding: var(--space-sm) var(--space-md);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* Services Section */
.layanan {
    padding: var(--space-3xl) 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
}

.service-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    backdrop-filter: blur(20px);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-accent-blue);
    box-shadow: var(--shadow-card), var(--glow-primary);
}

.service-card:hover::before {
    opacity: 1;
}

.service-icon {
    width: 60px;
    height: 60px;
    margin-bottom: var(--space-md);
    color: var(--color-accent-blue);
}

.service-title {
    margin-bottom: var(--space-sm);
    color: var(--color-text-primary);
}

.service-desc {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.service-features {
    list-style: none;
}

.service-features li {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xs);
    position: relative;
    padding-left: var(--space-md);
    font-size: 0.9rem;
}

.service-features li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-accent-blue);
}

/* Why Us Section */
.why-us {
    padding: var(--space-3xl) 0;
    background: var(--gradient-subtle);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
}

.why-item {
    text-align: center;
    padding: var(--space-lg);
}

.why-item h3 {
    color: var(--color-accent-blue);
    margin-bottom: var(--space-sm);
}

.why-item p {
    color: var(--color-text-secondary);
}

/* Process Section */
.proses {
    padding: var(--space-3xl) 0;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
    position: relative;
}

.process-step {
    text-align: center;
    padding: var(--space-lg);
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-md);
    font-weight: var(--font-weight-bold);
    color: var(--color-bg);
    font-size: 1.25rem;
}

.process-step h3 {
    margin-bottom: var(--space-sm);
}

.process-step p {
    color: var(--color-text-secondary);
}

/* Results Section */
.hasil {
    padding: var(--space-3xl) 0;
    background: var(--gradient-subtle);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

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

.stat-number {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: var(--font-weight-bold);
    background: var(--gradient-primary);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: block;
}

.stat-label {
    color: var(--color-text-secondary);
    margin-top: var(--space-xs);
}

.stats-disclaimer {
    text-align: center;
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

/* Testimonials */
.testimoni {
    padding: var(--space-3xl) 0;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.testimonial-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    backdrop-filter: blur(20px);
}

.testimonial-card blockquote {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: var(--space-md);
    color: var(--color-text-primary);
}

.testimonial-card cite {
    color: var(--color-text-secondary);
    font-style: normal;
    font-size: 0.9rem;
}

/* FAQ Section */
.faq {
    padding: var(--space-3xl) 0;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-lg) 0;
}

.faq-question {
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-sm);
    color: var(--color-text-primary);
}

.faq-answer {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* Contact Section */
.kontak {
    padding: var(--space-3xl) 0;
    background: var(--gradient-subtle);
}

.kontak-lead {
    text-align: center;
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.kontak-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-2xl);
    align-items: start;
}

.kontak-form {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    backdrop-filter: blur(20px);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-xs);
    color: var(--color-text-primary);
    font-weight: var(--font-weight-medium);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--space-sm);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-primary);
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent-blue);
    box-shadow: 0 0 0 2px rgba(0, 229, 255, 0.2);
}

.form-actions {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.kontak-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.info-item h3 {
    color: var(--color-accent-blue);
    margin-bottom: var(--space-xs);
    font-size: 1rem;
}

.info-item p {
    color: var(--color-text-secondary);
}

/* Footer */
.footer {
    background: rgba(0, 0, 0, 0.5);
    border-top: 1px solid var(--color-border);
    padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    gap: var(--space-lg);
    align-items: start;
    margin-bottom: var(--space-lg);
}

.footer-brand p {
    color: var(--color-text-muted);
    margin-top: var(--space-xs);
}

.footer-nav {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    justify-content: center;
}

.footer-nav a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-nav a:hover {
    color: var(--color-accent-blue);
}

.footer-social {
    display: flex;
    gap: var(--space-md);
    justify-content: flex-end;
}

.footer-social a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-social a:hover {
    color: var(--color-accent-blue);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

.footer-bottom p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.6; }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(11, 15, 26, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: var(--space-2xl);
        transition: left 0.3s ease;
    }

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

    .nav-cta {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle-open span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle-open span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle-open span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .hero-visual {
        width: 100%;
        opacity: 0.3;
    }

    .hero-cta {
        flex-direction: column;
        align-items: flex-start;
    }

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

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

    .process-steps {
        grid-template-columns: 1fr;
    }

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

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

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

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

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

    .footer-social {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    :root {
        --space-sm: 0.75rem;
        --space-md: 1rem;
        --space-lg: 1.5rem;
        --space-xl: 2rem;
        --space-2xl: 3rem;
        --space-3xl: 4rem;
    }

    .container {
        padding: 0 var(--space-sm);
    }

    .service-card,
    .kontak-form {
        padding: var(--space-lg);
    }

    .form-actions {
        flex-direction: column;
    }

    .form-actions .btn {
        width: 100%;
        justify-content: center;
    }
}