/* ========================================
   NAVI KOMPUTER - PROFESSIONAL WEBSITE CSS
   ======================================== */

/* === ROOT VARIABLES === */
:root {
    --primary-color: #1e40af;
    --primary-hover: #1e3a8a;
    --secondary-color: #3b82f6;
    --accent-color: #60a5fa;
    --text-dark: #1f2937;
    --text-gray: #6b7280;
    --text-light: #9ca3af;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --success-color: #10b981;
    --whatsapp-color: #25d366;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

/* === RESET & BASE === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

/* === CONTAINER === */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* === HEADER & NAVIGATION === */
.header {
    background-color: var(--bg-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav-brand .logo {
    height: 45px;
    width: auto;
}

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

.nav-menu li a {
    font-weight: 500;
    color: var(--text-dark);
    padding: 0.5rem 0;
    position: relative;
}

.nav-menu li a:hover,
.nav-menu li a.active {
    color: var(--primary-color);
}

.nav-menu li a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
}

.btn-nav-cta {
    background-color: var(--primary-color);
    color: white !important;
    padding: 0.6rem 1.5rem !important;
    border-radius: 8px;
    font-weight: 600;
    transition: var(--transition);
}

.btn-nav-cta:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--text-dark);
    border-radius: 2px;
    transition: var(--transition);
}

/* === BUTTONS === */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background-color: var(--primary-color);
    color: white;
    padding: 0.875rem 2rem;
    border-radius: 10px;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-primary.btn-large {
    padding: 1.125rem 2.5rem;
    font-size: 1.125rem;
}

.btn-primary .btn-icon {
    width: 24px;
    height: 24px;
}

.btn-secondary {
    display: inline-block;
    background-color: transparent;
    color: var(--primary-color);
    padding: 0.875rem 2rem;
    border-radius: 10px;
    font-weight: 600;
    border: 2px solid var(--primary-color);
    transition: var(--transition);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* === HERO SECTION === */
.hero {
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    padding: 5rem 0;
}

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

.hero-text {
    animation: fadeInLeft 0.8s ease-out;
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.2;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-gray);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.hero-tagline {
    margin-top: 1.5rem;
    font-size: 0.95rem;
    color: var(--text-light);
    font-style: italic;
}

.hero-image {
    animation: fadeInRight 0.8s ease-out;
}

.hero-image img {
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
    width: 100%;
    object-fit: cover;
}

/* === SECTIONS === */
section {
    padding: 5rem 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.125rem;
    text-align: center;
    color: var(--text-gray);
    margin-bottom: 3rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* === SERVICES SECTION === */
.services {
    background-color: var(--bg-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
}

.service-card {
    background-color: var(--bg-white);
    padding: 2rem;
    border-radius: 16px;
    border: 2px solid var(--border-color);
    transition: var(--transition);
    text-align: center;
}

.service-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
}

.service-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.service-card h3 {
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--text-gray);
    line-height: 1.7;
}

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

/* === FEATURES SECTION === */
.features {
    background-color: var(--bg-light);
}

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

.feature-card {
    background-color: var(--bg-white);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.feature-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.feature-icon {
    width: 70px;
    height: 70px;
    margin-bottom: 1.5rem;
}

.feature-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.75rem;
}

.feature-card p {
    color: var(--text-gray);
    line-height: 1.7;
}

/* === COVERAGE SECTION === */
.coverage {
    background-color: var(--bg-white);
}

.coverage-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.coverage-image img {
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
}

.coverage-text p {
    margin-bottom: 1.5rem;
    color: var(--text-gray);
    line-height: 1.8;
}

.coverage-text strong {
    color: var(--primary-color);
    font-weight: 600;
}

/* === TESTIMONIALS SECTION === */
.testimonials {
    background-color: var(--bg-light);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.testimonial-card {
    background-color: var(--bg-white);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.testimonial-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.testimonial-rating {
    color: #fbbf24;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.testimonial-text {
    color: var(--text-gray);
    font-style: italic;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.testimonial-author {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.95rem;
}

/* === CTA SECTION === */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    text-align: center;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.cta-text {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.cta-section .btn-primary {
    background-color: white;
    color: var(--primary-color);
}

.cta-section .btn-primary:hover {
    background-color: var(--bg-light);
}

/* === FOOTER === */
.footer {
    background-color: var(--text-dark);
    color: white;
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-col h3,
.footer-col h4 {
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.footer-col p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    margin-bottom: 1rem;
}

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

.footer-col ul li a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: var(--accent-color);
    padding-left: 5px;
}

.footer-contact li {
    margin-bottom: 1rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.footer-seo {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
}

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

/* === WHATSAPP FLOATING BUTTON === */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 65px;
    height: 65px;
    background-color: var(--whatsapp-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-xl);
    z-index: 999;
    transition: var(--transition);
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 15px 30px rgba(37, 211, 102, 0.4);
}

.whatsapp-float img {
    width: 40px;
    height: 40px;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
    }
    50% {
        box-shadow: 0 0 0 15px rgba(37, 211, 102, 0);
    }
}

/* === PAGE HEADER === */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    text-align: center;
    padding: 4rem 0;
}

.page-header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.25rem;
    opacity: 0.95;
}

/* === SERVICES DETAIL PAGE === */
.services-detail {
    background-color: var(--bg-light);
}

.service-detail-card {
    background-color: var(--bg-white);
    border-radius: 20px;
    padding: 3rem;
    margin-bottom: 3rem;
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
    align-items: center;
    box-shadow: var(--shadow-md);
}

.service-detail-card.reverse {
    grid-template-columns: 1.5fr 1fr;
}

.service-detail-card.reverse .service-detail-image {
    order: 2;
}

.service-detail-image img {
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    width: 100%;
    height: 350px;
    object-fit: cover;
}

.service-detail-icon {
    width: 70px;
    height: 70px;
    margin-bottom: 1.5rem;
}

.service-detail-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.service-detail-content h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
}

.service-detail-content p {
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 2rem;
}

.service-includes h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.service-includes ul {
    list-style: none;
}

.service-includes ul li {
    color: var(--text-gray);
    padding-left: 1.5rem;
    margin-bottom: 0.75rem;
    position: relative;
    line-height: 1.6;
}

.service-includes ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

/* === ABOUT PAGE === */
.about-content {
    background-color: var(--bg-white);
}

.about-section {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    align-items: start;
    margin-bottom: 4rem;
}

.about-image img {
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    width: 100%;
    height: 500px;
    object-fit: cover;
}

.about-text h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
}

.about-text p {
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.vision-mission {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 4rem;
}

.vm-card {
    background-color: var(--bg-light);
    padding: 3rem;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
}

.vm-card h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.vm-card p,
.vm-card ul {
    color: var(--text-gray);
    line-height: 1.8;
}

.vm-card ul {
    list-style: none;
}

.vm-card ul li {
    padding-left: 1.5rem;
    margin-bottom: 1rem;
    position: relative;
}

.vm-card ul li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.5rem;
}

.values-section {
    margin-bottom: 4rem;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.value-card {
    background-color: var(--bg-light);
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    transition: var(--transition);
}

.value-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.value-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1.5rem;
}

.value-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.value-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.value-card p {
    color: var(--text-gray);
    line-height: 1.7;
}

.why-choose {
    background-color: var(--bg-light);
    padding: 3rem;
    border-radius: 20px;
}

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

.why-item h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.75rem;
}

.why-item p {
    color: var(--text-gray);
    line-height: 1.7;
}

/* === CONTACT PAGE === */
.contact-section {
    background-color: var(--bg-light);
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 4rem;
}

.contact-method-card {
    background-color: var(--bg-white);
    padding: 2.5rem;
    border-radius: 16px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.contact-method-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.contact-method-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
}

.contact-method-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.contact-method-card h3 {
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.contact-info {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.contact-desc {
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.contact-note {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.6;
    font-style: italic;
}

.map-section {
    margin-bottom: 4rem;
}

.map-section h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 2rem;
    text-align: center;
}

.map-container {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.operating-hours {
    background-color: var(--bg-white);
    padding: 3rem;
    border-radius: 16px;
    margin-bottom: 3rem;
    box-shadow: var(--shadow-sm);
}

.operating-hours h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 2rem;
    text-align: center;
}

.hours-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-bottom: 1.5rem;
}

.hours-item {
    text-align: center;
    padding: 2rem;
    background-color: var(--bg-light);
    border-radius: 12px;
}

.hours-item h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.hours-item p {
    font-size: 1.25rem;
    color: var(--primary-color);
    font-weight: 600;
}

.hours-note {
    text-align: center;
    color: var(--text-gray);
    line-height: 1.7;
}

.coverage-area {
    background-color: var(--bg-white);
    padding: 3rem;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
}

.coverage-area h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
    text-align: center;
}

.coverage-area p {
    color: var(--text-gray);
    line-height: 1.8;
    text-align: center;
    margin-bottom: 2rem;
}

.area-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}

.area-tag {
    background-color: var(--bg-light);
    color: var(--primary-color);
    padding: 0.5rem 1.25rem;
    border-radius: 25px;
    font-weight: 500;
    border: 2px solid var(--primary-color);
    transition: var(--transition);
}

.area-tag:hover {
    background-color: var(--primary-color);
    color: white;
}

/* === ANIMATIONS === */
@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* === RESPONSIVE DESIGN === */
@media (max-width: 1024px) {
    .hero-content,
    .coverage-content,
    .about-section {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .service-detail-card,
    .service-detail-card.reverse {
        grid-template-columns: 1fr;
    }

    .service-detail-card.reverse .service-detail-image {
        order: 0;
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--bg-white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-lg);
        padding: 2rem 0;
        gap: 1rem;
    }

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

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

    .hero-subtitle {
        font-size: 1rem;
    }

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

    .services-grid,
    .features-grid,
    .values-grid,
    .why-grid,
    .vision-mission,
    .hours-grid {
        grid-template-columns: 1fr;
    }

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

    .cta-title {
        font-size: 1.75rem;
    }

    .page-header h1 {
        font-size: 2rem;
    }

    .whatsapp-float {
        width: 55px;
        height: 55px;
        bottom: 20px;
        right: 20px;
    }

    .whatsapp-float img {
        width: 32px;
        height: 32px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 3rem 0;
    }

    section {
        padding: 3rem 0;
    }

    .btn-primary.btn-large {
        padding: 1rem 1.5rem;
        font-size: 1rem;
    }

    .service-card,
    .feature-card {
        padding: 1.5rem;
    }
}