/* ==========================================================================
   Eka Teknologi Solusi - Premium Custom CSS
   ========================================================================== */

/* --------------------------------------------------------------------------
   Variables & Root
   -------------------------------------------------------------------------- */
   :root {
    /* Color Palette */
    --primary: #0070f3;
    --primary-light: #3291ff;
    --primary-dark: #0051a8;
    --secondary: #00e5ff;
    
    --bg-dark: #050505;
    --bg-surface: #111111;
    --bg-glass: rgba(25, 25, 25, 0.65);
    
    --text-main: #ffffff;
    --text-muted: #a0a0a0;
    
    --border-color: rgba(255, 255, 255, 0.1);
    --border-glass: rgba(255, 255, 255, 0.08);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary), var(--secondary));
    --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.05), rgba(255,255,255,0.01));
    
    /* Shadows */
    --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --shadow-glow: 0 0 20px rgba(0, 112, 243, 0.4);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-slow: 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

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

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-normal);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-padding {
    padding: 6rem 0;
}

.relative { position: relative; }
.z-10 { z-index: 10; }
.text-center { text-align: center; }
.mt-4 { margin-top: 1.5rem; }
.w-100 { width: 100%; }
.bg-dark { background-color: var(--bg-surface); }

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
}

h1 span {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

h2 {
    font-size: clamp(2rem, 4vw, 2.5rem);
}

h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

/* --------------------------------------------------------------------------
   Components (Buttons, Cards, Badges)
   -------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.75rem;
    border-radius: 50px;
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    transition: var(--transition-normal);
    gap: 0.5rem;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(0, 112, 243, 0.3);
}

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

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-glass);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

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

.btn-outline:hover {
    background: var(--primary);
}

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
}

/* Glassmorphism Card */
.glass-card {
    background: var(--gradient-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    box-shadow: var(--shadow-glass);
}

.badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: rgba(0, 112, 243, 0.15);
    color: var(--primary-light);
    border: 1px solid rgba(0, 112, 243, 0.3);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    letter-spacing: 1px;
    text-transform: uppercase;
}

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

.subtitle {
    display: block;
    color: var(--primary-light);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.header-desc {
    max-width: 600px;
    margin: 0 auto;
}

/* --------------------------------------------------------------------------
   Navbar
   -------------------------------------------------------------------------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.25rem 0;
    transition: var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(5, 5, 5, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-glass);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
}

.logo-img {
    height: 36px;
    width: auto;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-link {
    color: var(--text-main);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
}

.nav-link:not(.btn-primary)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-fast);
}

.nav-link:not(.btn-primary):hover::after,
.nav-link.active:not(.btn-primary)::after {
    width: 100%;
}

.nav-link:not(.btn-primary):hover {
    color: white;
}

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: white;
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 5rem;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(5,5,5,0.95) 0%, rgba(5,5,5,0.7) 50%, rgba(5,5,5,0.4) 100%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 4rem;
}

.hero-text {
    max-width: 650px;
}

.hero-btns {
    display: flex;
    gap: 1rem;
    margin-top: 2.5rem;
}

.hero-stats {
    display: flex;
    gap: 1.5rem;
    margin-top: 3rem;
}

.stat-card {
    padding: 1.5rem;
    min-width: 150px;
    border-top: 1px solid rgba(255,255,255,0.2);
    border-left: 1px solid rgba(255,255,255,0.1);
}

.stat-card h3 {
    font-size: 2rem;
    color: var(--secondary);
    margin-bottom: 0.25rem;
}

.stat-card p {
    margin: 0;
    font-size: 0.875rem;
    font-weight: 500;
}

/* --------------------------------------------------------------------------
   About Section
   -------------------------------------------------------------------------- */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.image-wrapper {
    position: relative;
    border-radius: 20px;
    padding: 1rem;
    transform: perspective(1000px) rotateY(5deg);
    transition: var(--transition-slow);
}

.image-wrapper:hover {
    transform: perspective(1000px) rotateY(0deg);
}

.image-wrapper img {
    border-radius: 12px;
}

.experience-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background: var(--gradient-primary);
    padding: 1.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-glow);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.experience-badge .number {
    font-size: 1.5rem;
    font-weight: 800;
    color: white;
}

.experience-badge .text {
    font-size: 0.875rem;
    font-weight: 500;
}

.feature-list {
    margin: 2rem 0;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    font-weight: 500;
}

.feature-list i {
    color: var(--secondary);
    font-size: 1.25rem;
}

/* --------------------------------------------------------------------------
   Services Section
   -------------------------------------------------------------------------- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    padding: 2.5rem 2rem;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top right, rgba(0, 112, 243, 0.1), transparent 70%);
    opacity: 0;
    transition: var(--transition-normal);
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: rgba(0, 112, 243, 0.3);
    box-shadow: 0 15px 35px rgba(0,0,0,0.4);
}

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

.icon-wrapper {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    background: rgba(0, 112, 243, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--secondary);
    font-size: 1.75rem;
    border: 1px solid rgba(0, 112, 243, 0.2);
    transition: var(--transition-normal);
}

.service-card:hover .icon-wrapper {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-glow);
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-light);
    font-weight: 500;
    font-size: 0.9rem;
    margin-top: 1rem;
}

.service-link i {
    transition: var(--transition-fast);
}

.service-link:hover {
    color: white;
}

.service-link:hover i {
    transform: translateX(5px);
}

/* --------------------------------------------------------------------------
   CTA Section
   -------------------------------------------------------------------------- */
.cta {
    position: relative;
    overflow: hidden;
    border-top: 1px solid var(--border-glass);
    border-bottom: 1px solid var(--border-glass);
}

.cta-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0.1;
    z-index: 1;
}

.cta h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1.5rem;
}

/* --------------------------------------------------------------------------
   Contact Section
   -------------------------------------------------------------------------- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
}

.info-item {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.info-item .icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(0, 112, 243, 0.1);
    color: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.info-item h4 {
    margin-bottom: 0.25rem;
}

.info-item p {
    margin: 0;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-glass);
}

.social-icon:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: translateY(-3px);
}

.contact-form-wrapper {
    padding: 3rem;
    border-top: 1px solid rgba(255,255,255,0.2);
    border-left: 1px solid rgba(255,255,255,0.1);
}

.contact-form h3 {
    margin-bottom: 2rem;
    font-size: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem 1.25rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-glass);
    border-radius: 8px;
    color: white;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-light);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 0 4px rgba(0, 112, 243, 0.1);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
    background-color: #020202;
    padding: 5rem 0 2rem;
    border-top: 1px solid var(--border-glass);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 3rem;
    margin-bottom: 4rem;
}

.footer-brand p {
    margin-top: 1.5rem;
    font-size: 0.9rem;
}

.footer-links h4 {
    color: white;
    margin-bottom: 1.5rem;
    position: relative;
    display: inline-block;
}

.footer-links h4::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--primary);
}

.footer-links ul li {
    margin-bottom: 0.75rem;
}

.footer-links ul a {
    color: var(--text-muted);
    font-size: 0.9rem;
}

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

.newsletter-form {
    display: flex;
    margin-top: 1rem;
}

.newsletter-form input {
    flex: 1;
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-glass);
    border-radius: 8px 0 0 8px;
    color: white;
    outline: none;
}

.newsletter-form button {
    background: var(--primary);
    color: white;
    border: none;
    padding: 0 1.25rem;
    border-radius: 0 8px 8px 0;
    cursor: pointer;
    transition: var(--transition-fast);
}

.newsletter-form button:hover {
    background: var(--primary-light);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.05);
    font-size: 0.875rem;
}

/* --------------------------------------------------------------------------
   Animations (Reveal)
   -------------------------------------------------------------------------- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.delay-1 { transition-delay: 0.2s; }
.delay-2 { transition-delay: 0.4s; }
.delay-3 { transition-delay: 0.6s; }

/* --------------------------------------------------------------------------
   Responsive Design
   -------------------------------------------------------------------------- */
@media (max-width: 992px) {
    .about-grid, .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .experience-badge {
        right: 0;
        bottom: -10px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 250px;
        height: 100vh;
        background: rgba(10, 10, 10, 0.95);
        backdrop-filter: blur(15px);
        -webkit-backdrop-filter: blur(15px);
        flex-direction: column;
        justify-content: center;
        padding: 2rem;
        transition: 0.4s ease-in-out;
        border-left: 1px solid var(--border-glass);
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .mobile-menu-btn {
        display: block;
        z-index: 1001;
    }
    
    .hero-stats {
        flex-direction: column;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .hero {
        text-align: center;
        padding-top: 8rem;
    }
    
    .hero-btns {
        justify-content: center;
        flex-direction: column;
    }
}

/* --------------------------------------------------------------------------
   Portfolio Section
   -------------------------------------------------------------------------- */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.portfolio-item {
    border-radius: 16px;
    overflow: hidden;
    position: relative;
    transition: var(--transition-normal);
}

.portfolio-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: var(--transition-slow);
}

.portfolio-item:hover img {
    transform: scale(1.05);
}

.portfolio-content {
    padding: 1.5rem;
    background: rgba(5, 5, 5, 0.9);
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    transform: translateY(100%);
    transition: var(--transition-normal);
}

.portfolio-item:hover .portfolio-content {
    transform: translateY(0);
}

.portfolio-content h3 {
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
    color: white;
}

.portfolio-content p {
    margin-bottom: 0;
    font-size: 0.875rem;
}

/* --------------------------------------------------------------------------
   Clients & Testimonials Section
   -------------------------------------------------------------------------- */
.clients-slider {
    overflow: hidden;
    padding: 2rem 0;
    margin-bottom: 4rem;
    position: relative;
}

.clients-slider::before,
.clients-slider::after {
    content: "";
    position: absolute;
    top: 0;
    width: 150px;
    height: 100%;
    z-index: 2;
}

.clients-slider::before {
    left: 0;
    background: linear-gradient(to right, var(--bg-surface) 0%, transparent 100%);
}

.clients-slider::after {
    right: 0;
    background: linear-gradient(to left, var(--bg-surface) 0%, transparent 100%);
}

.clients-track {
    display: flex;
    width: calc(250px * 10);
    animation: scroll 20s linear infinite;
}

.client-logo {
    width: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-muted);
    opacity: 0.6;
    transition: var(--transition-fast);
}

.client-logo:hover {
    opacity: 1;
    color: white;
}

.client-logo i {
    font-size: 2.5rem;
    color: var(--primary-light);
}

@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(calc(-250px * 5)); }
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
}

.testimonial-card {
    padding: 3rem 2rem 2rem;
    position: relative;
}

.quote-icon {
    position: absolute;
    top: 1.5rem;
    left: 2rem;
    font-size: 3rem;
    color: rgba(0, 112, 243, 0.15);
    z-index: -1;
}

.testimonial-card p {
    font-size: 1.1rem;
    font-style: italic;
    margin-bottom: 2rem;
    color: #e0e0e0;
}

.author h4 {
    margin-bottom: 0.2rem;
    font-size: 1.1rem;
}

.author span {
    color: var(--primary-light);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* --------------------------------------------------------------------------
   Modals
   -------------------------------------------------------------------------- */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: var(--transition-normal);
}

.modal-backdrop.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -40%);
    width: 90%;
    max-width: 600px;
    z-index: 2001;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: var(--transition-normal);
}

.modal.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translate(-50%, -50%);
}

.modal-content {
    padding: 2.5rem;
    position: relative;
    max-height: 85vh;
    overflow-y: auto;
}

.close-modal {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-size: 2rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition-fast);
}

.close-modal:hover {
    color: white;
    transform: scale(1.1);
}

.modal-body h3 {
    color: var(--secondary);
    margin-bottom: 1.5rem;
    padding-right: 2rem;
}

.modal-body p {
    color: #e0e0e0;
    font-size: 1rem;
}

.modal-body .feature-list li {
    font-size: 0.95rem;
}