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

:root {
    --primary-blue: #0077FF;
    --primary-dark: #121212;
    --whatsapp-green: #25D366;
    --light-gray: #F5F5F5;
    --medium-gray: #E0E0E0;
    --dark-gray: #333333;
    --white: #FFFFFF;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--white);
    color: var(--dark-gray);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

/* Header & Navigation */
header {
    background-color: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.logo h1 {
    color: var(--primary-blue);
    font-size: 1.8rem;
    font-weight: 700;
}

.logo span {
    color: var(--dark-gray);
}

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

.nav-links a {
    text-decoration: none;
    color: var(--dark-gray);
    font-weight: 600;
    font-size: 1rem;
    padding: 8px 0;
    position: relative;
    transition: var(--transition);
}

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

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

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--primary-blue);
    border-radius: 2px;
}

/* Main Content */
main {
    flex: 1;
    padding: 40px 0;
}

.page-title {
    text-align: center;
    margin-bottom: 40px;
}

.page-title h1 {
    font-size: 2.5rem;
    color: var(--primary-dark);
    margin-bottom: 10px;
}

.page-title p {
    color: #666;
    font-size: 1.1rem;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-blue) 0%, #0055CC 100%);
    color: var(--white);
    padding: 80px 0;
    border-radius: 20px;
    margin-bottom: 60px;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.cta-button {
    display: inline-block;
    background-color: var(--white);
    color: var(--primary-blue);
    padding: 15px 35px;
    font-size: 1.1rem;
    font-weight: 700;
    text-decoration: none;
    border-radius: 50px;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

/* Features Section */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.feature-card {
    background-color: var(--white);
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

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

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--primary-blue);
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--primary-dark);
}

/* Products Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.product-card {
    background-color: var(--white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.product-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-bottom: 2px solid var(--medium-gray);
}

.product-info {
    padding: 20px;
}

.product-category {
    display: inline-block;
    background-color: var(--light-gray);
    color: var(--primary-blue);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.product-name {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--primary-dark);
}

.product-price {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 15px;
}

.product-specs {
    list-style: none;
    margin-bottom: 20px;
    font-size: 0.9rem;
    color: #666;
}

.product-specs li {
    margin-bottom: 5px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.product-specs li i {
    color: var(--primary-blue);
}

.whatsapp-button {
    display: block;
    width: 100%;
    background-color: var(--whatsapp-green);
    color: var(--white);
    text-align: center;
    padding: 12px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 700;
    transition: var(--transition);
}

.whatsapp-button:hover {
    background-color: #128C7E;
}

/* About Page Styles */
.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-section {
    background-color: var(--white);
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    margin-bottom: 40px;
}

.about-section h2 {
    color: var(--primary-blue);
    margin-bottom: 20px;
    font-size: 1.8rem;
}

.about-section h3 {
    color: var(--dark-gray);
    margin-top: 25px;
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.about-section ul {
    list-style-position: inside;
    margin-left: 20px;
}

.about-section li {
    margin-bottom: 10px;
}

/* Contact Page Styles - Sederhana */
.contact-simple {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    max-width: 800px;
    margin: 0 auto;
}

.contact-info-simple {
    background-color: var(--white);
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.contact-info-simple h2 {
    color: var(--primary-blue);
    margin-bottom: 30px;
    font-size: 1.8rem;
    text-align: center;
}

.contact-details-simple {
    list-style: none;
}

.contact-details-simple li {
    margin-bottom: 25px;
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.contact-icon-simple {
    font-size: 1.2rem;
    color: var(--white);
    width: 40px;
    height: 40px;
    background-color: var(--primary-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.whatsapp-cta-simple {
    background: linear-gradient(135deg, var(--whatsapp-green) 0%, #128C7E 100%);
    color: var(--white);
    padding: 40px;
    border-radius: 15px;
    text-align: center;
}

.whatsapp-cta-simple h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.whatsapp-cta-simple p {
    margin-bottom: 25px;
    font-size: 1.1rem;
}

.whatsapp-button-simple {
    background-color: var(--white);
    color: var(--whatsapp-green);
    padding: 15px 35px;
    font-size: 1.1rem;
    font-weight: 700;
    text-decoration: none;
    border-radius: 50px;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.whatsapp-button-simple:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-hover);
}

/* Form Styles Sederhana */
.contact-form-simple {
    background-color: var(--white);
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    margin-top: 40px;
}

.contact-form-simple h2 {
    color: var(--primary-blue);
    margin-bottom: 30px;
    font-size: 1.8rem;
    text-align: center;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark-gray);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--medium-gray);
    border-radius: 8px;
    font-size: 1rem;
    transition: var(--transition);
}

.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(0, 119, 255, 0.1);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.submit-button {
    background-color: var(--primary-blue);
    color: var(--white);
    border: none;
    padding: 15px 35px;
    font-size: 1.1rem;
    font-weight: 700;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.submit-button:hover {
    background-color: #0055CC;
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

/* Footer */
footer {
    background-color: var(--primary-dark);
    color: var(--white);
    padding: 40px 0;
    margin-top: 60px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.footer-section h3 {
    color: var(--primary-blue);
    margin-bottom: 20px;
    font-size: 1.3rem;
}

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

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

.footer-links a {
    color: #ccc;
    text-decoration: none;
    transition: var(--transition);
}

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

.copyright {
    text-align: center;
    padding-top: 30px;
    margin-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #999;
}

/* Responsive Design */
@media (max-width: 768px) {
    nav {
        flex-direction: column;
        gap: 20px;
    }
    
    .nav-links {
        gap: 20px;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero h2 {
        font-size: 2rem;
    }
    
    .page-title h1 {
        font-size: 2rem;
    }
    
    .about-section,
    .contact-info-simple,
    .contact-form-simple {
        padding: 25px;
    }
    
    .whatsapp-cta-simple {
        padding: 30px 20px;
    }
    
    .hero {
        padding: 50px 0;
    }
}

@media (max-width: 480px) {
    .nav-links {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .hero h2 {
        font-size: 1.8rem;
    }
    
    .features {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
}