* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

:root {
    --primary-blue: #1a73e8;
    --secondary-blue: #0d47a1;
    --light-blue: #e8f0fe;
    --accent-blue: #4285f4;
    --dark-blue: #0a3d7a;
    --text-dark: #333;
    --text-light: #fff;
    --gray-bg: #f8f9fa;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --success: #28a745;
    --warning: #ffc107;
    --danger: #dc3545;
}

body {
    line-height: 1.6;
    color: var(--text-dark);
    background-color: #fefefe;
}

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

/* Header Styles */
header {
    background-color: var(--text-light);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Logo placeholder styling */
.logo-placeholder {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    /* Biar gambar tidak terpotong */
    display: block;
}

.logo-placeholder.footer {
    width: 40px;
    height: 40px;
}

.logo-icon {
    color: white;
    font-weight: 800;
    font-size: 1.4rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
}

.logo-text {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-blue);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--primary-blue);
}

.cta-button {
    background-color: var(--primary-blue);
    color: var(--text-light);
    padding: 10px 25px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: background-color 0.3s;
}

.cta-button:hover {
    background-color: var(--secondary-blue);
}

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

/* Hero Section */
.hero {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--light-blue) 0%, #ffffff 100%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.hero-text h1 {
    font-size: 2.8rem;
    margin-bottom: 20px;
    color: var(--dark-blue);
    line-height: 1.2;
}

.hero-text p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: #555;
}

.hero-buttons {
    display: flex;
    gap: 15px;
}

.btn {
    padding: 12px 30px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    display: inline-block;
    transition: all 0.3s;
}

.btn-primary {
    background-color: var(--primary-blue);
    color: var(--text-light);
}

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

.btn-secondary {
    background-color: transparent;
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
}

.btn-secondary:hover {
    background-color: var(--light-blue);
    transform: translateY(-3px);
}

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

.coding-img {
    max-width: 100%;
    border-radius: 10px;
    box-shadow: var(--shadow);
    height: 350px;
    object-fit: cover;
}

/* Features Section */
.features {
    padding: 80px 0;
    background-color: var(--gray-bg);
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 2.2rem;
    color: var(--dark-blue);
    margin-bottom: 15px;
}

.section-title p {
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: var(--text-light);
    padding: 30px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-10px);
}

.feature-icon {
    background-color: var(--light-blue);
    color: var(--primary-blue);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.feature-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--dark-blue);
}

/* Services Section */
.services {
    padding: 80px 0;
    background-color: white;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: var(--text-light);
    border-radius: 10px;
    padding: 40px 30px;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
    border: 1px solid #eee;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.service-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    font-size: 2rem;
    color: white;
}

.service-card h3 {
    font-size: 1.6rem;
    margin-bottom: 15px;
    color: var(--dark-blue);
}

.service-card p {
    color: #666;
    margin-bottom: 20px;
}

.service-list {
    list-style: none;
    margin-bottom: 30px;
}

.service-list li {
    margin-bottom: 10px;
    color: #555;
    display: flex;
    align-items: center;
    gap: 10px;
}

.service-list i {
    color: var(--primary-blue);
    font-size: 1rem;
}

.service-btn {
    display: inline-block;
    padding: 12px 30px;
    background-color: var(--primary-blue);
    color: white;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    transition: background-color 0.3s;
}

.service-btn:hover {
    background-color: var(--secondary-blue);
}

/* About Section */
.about {
    padding: 80px 0;
    background-color: var(--gray-bg);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-text h2 {
    font-size: 2.2rem;
    margin-bottom: 20px;
    color: var(--dark-blue);
}

.about-text p {
    margin-bottom: 20px;
    color: #555;
}

.stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.stat-item {
    text-align: center;
    background-color: white;
    padding: 20px 10px;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 5px;
}

.stat-label {
    color: #666;
    font-size: 0.9rem;
}

/* Courses Section */
.courses {
    padding: 80px 0;
    background-color: white;
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.course-card {
    background-color: var(--text-light);
    padding: 30px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
    border: 1px solid #eee;
}

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.course-icon {
    width: 70px;
    height: 70px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 2rem;
}

.course-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--dark-blue);
}

.course-card p {
    margin-bottom: 20px;
    color: #666;
}

.course-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    color: #777;
    font-size: 0.9rem;
}

.course-meta span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.course-link {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: gap 0.3s;
}

.course-link:hover {
    gap: 10px;
}

/* Contact Section */
.contact {
    padding: 80px 0;
    background-color: var(--gray-bg);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 40px;
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.contact-info {
    padding: 40px;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: white;
}

.contact-info h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
}

.contact-info>p {
    margin-bottom: 30px;
    opacity: 0.9;
}

.contact-details {
    margin-bottom: 30px;
}

.contact-item {
    display: flex;
    gap: 15px;
    margin-bottom: 25px;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.contact-item p {
    opacity: 0.9;
    line-height: 1.5;
}

.contact-social h4 {
    font-size: 1.2rem;
    margin-bottom: 15px;
}

.contact-social .social-icons {
    display: flex;
    gap: 15px;
}

.contact-social .social-icon {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: background-color 0.3s;
}

.contact-social .social-icon:hover {
    background-color: rgba(255, 255, 255, 0.3);
}

.contact-form {
    padding: 40px;
}

.contact-form h3 {
    font-size: 1.8rem;
    margin-bottom: 10px;
    color: var(--dark-blue);
}

.contact-form>p {
    margin-bottom: 30px;
    color: #666;
}

.form-row {
    margin-bottom: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    margin-bottom: 8px;
    font-weight: 500;
    color: #555;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.1);
}

.form-group textarea {
    resize: vertical;
}

.btn-submit {
    background-color: var(--primary-blue);
    color: white;
    padding: 14px 30px;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s;
    width: 100%;
}

.btn-submit:hover {
    background-color: var(--secondary-blue);
}

/* CTA Section */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    text-align: center;
    color: var(--text-light);
}

.cta-section h2 {
    font-size: 2.2rem;
    margin-bottom: 20px;
}

.cta-section p {
    font-size: 1.1rem;
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.btn-cta {
    background-color: white;
    color: var(--primary-blue);
    padding: 15px 40px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s;
    display: inline-block;
}

.btn-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
}

/* Footer */
footer {
    background-color: var(--dark-blue);
    color: var(--text-light);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-logo-text {
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-about p {
    margin-bottom: 20px;
    color: #ccc;
}

.footer-links h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
}

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

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

.footer-links a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: var(--text-light);
}

.footer-newsletter h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
}

.footer-newsletter p {
    color: #ccc;
    margin-bottom: 15px;
}

.newsletter-form {
    display: flex;
    gap: 10px;
}

.newsletter-form input {
    flex: 1;
    padding: 10px;
    border: none;
    border-radius: 5px;
    font-size: 0.9rem;
}

.newsletter-form button {
    background-color: var(--primary-blue);
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.newsletter-form button:hover {
    background-color: var(--secondary-blue);
}

.copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #ccc;
    font-size: 0.9rem;
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {

    .hero-content,
    .about-content {
        grid-template-columns: 1fr;
    }

    .hero-text h1 {
        font-size: 2.4rem;
    }

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

    .btn {
        width: 100%;
        text-align: center;
    }

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

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

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow);
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: block;
    }

    .navbar .cta-button {
        display: none;
    }

    .hero-text h1 {
        font-size: 2rem;
    }

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

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

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

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