/* ============================================
   BCA SURABAYA - MAIN STYLESHEET
   ============================================ */

/* Root Variables */
:root {
    --primary-color: #003DA5;
    --secondary-color: #0066B2;
    --accent-color: #FF6B35;
    --dark-gray: #1a1a1a;
    --light-gray: #f5f5f5;
    --border-gray: #ddd;
    --white: #fff;
    --success: #28a745;
    --warning: #ffc107;
    --danger: #dc3545;
    
    --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--dark-gray);
    background-color: var(--white);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
    color: var(--dark-gray);
}

h1 { font-size: 2.5rem; font-weight: 700; }
h2 { font-size: 2rem; font-weight: 700; }
h3 { font-size: 1.5rem; font-weight: 600; }
h4 { font-size: 1.25rem; font-weight: 600; }
h5 { font-size: 1.1rem; font-weight: 600; }
h6 { font-size: 1rem; font-weight: 600; }

p {
    margin-bottom: var(--spacing-md);
}

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

a:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

ul, ol {
    margin-left: 2rem;
    margin-bottom: var(--spacing-md);
}

li {
    margin-bottom: var(--spacing-sm);
}

/* ============================================
   CONTAINER & LAYOUT
   ============================================ */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

.header {
    background-color: var(--white);
    border-bottom: 2px solid var(--border-gray);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: var(--spacing-md) 0;
}

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

.logo h1 {
    margin: 0;
    font-size: 1.5rem;
}

.logo a {
    color: var(--primary-color);
    font-weight: 700;
}

.navbar ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.navbar a {
    color: var(--dark-gray);
    font-size: 0.95rem;
    font-weight: 500;
    padding: var(--spacing-xs) 0;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
}

.navbar a:hover {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    text-decoration: none;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: var(--secondary-color);
    text-decoration: none;
}

.btn-secondary {
    background-color: var(--accent-color);
    color: var(--white);
}

.btn-secondary:hover {
    background-color: #e55a2b;
    text-decoration: none;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    padding: 5rem var(--spacing-md);
    text-align: center;
}

.hero-content h1 {
    color: var(--white);
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.95;
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   SECTIONS & CONTENT
   ============================================ */

section {
    padding: var(--spacing-xl) 0;
}

section h2 {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

/* Quick Links / Products Grid */
.quick-links,
.features,
.certifications-grid {
    background-color: var(--light-gray);
}

.products-grid,
.features-grid,
.certifications-grid,
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.product-card,
.feature-item,
.cert-item,
.value-item {
    background-color: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.product-card:hover,
.feature-item:hover,
.cert-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

.product-card h3,
.feature-item h3 {
    margin-top: 0;
}

.product-card a,
.feature-item a {
    color: var(--primary-color);
}

.link-more {
    display: inline-block;
    color: var(--primary-color);
    font-weight: 600;
    margin-top: var(--spacing-sm);
    padding-right: 0.5rem;
}

.link-more:hover {
    padding-right: 0.8rem;
}

/* Branch Locator */
.branch-locator {
    background-color: var(--light-gray);
}

.branch-card {
    background-color: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
}

.branch-card p {
    margin-bottom: var(--spacing-sm);
}

/* Latest News Grid */
.latest-news {
    background-color: var(--white);
}

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

.news-card {
    background-color: var(--light-gray);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.news-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.news-card h3 {
    margin-top: 0;
}

.news-card h3 a {
    color: var(--primary-color);
}

.meta {
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.9rem;
    color: #666;
    margin-top: var(--spacing-sm);
}

.date::before {
    content: '📅 ';
}

.category {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

/* FAQ Section */
.faq-preview {
    background-color: var(--light-gray);
}

.faq-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.faq-item {
    background-color: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
}

.faq-item h3 {
    margin-top: 0;
    color: var(--primary-color);
}

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

.cta-final h2 {
    color: var(--white);
}

.cta-final p {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-lg);
}

/* ============================================
   PAGE HEADER (FOR ABOUT & BLOG PAGES)
   ============================================ */

.page-header,
.blog-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    padding: 3rem var(--spacing-md);
    text-align: center;
}

.page-header h1,
.blog-header h1 {
    color: var(--white);
    font-size: 2.5rem;
}

.intro {
    font-size: 1.2rem;
    opacity: 0.95;
    margin-bottom: 0;
}

.blog-meta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    align-items: center;
    margin-bottom: var(--spacing-md);
    font-size: 0.95rem;
}

.blog-category {
    background-color: rgba(255, 255, 255, 0.2);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
}

.blog-excerpt {
    font-size: 1.1rem;
    opacity: 0.95;
}

.blog-author {
    font-size: 0.95rem;
    opacity: 0.9;
}

/* ============================================
   ABOUT PAGE CONTENT
   ============================================ */

.about-content {
    background-color: var(--white);
}

.about-section {
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.about-section h2 {
    color: var(--primary-color);
    text-align: left;
    margin-bottom: var(--spacing-lg);
    font-size: 1.8rem;
}

.vision-mission {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.vision-box,
.mission-box {
    background-color: var(--light-gray);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    border-top: 4px solid var(--primary-color);
}

.vision-box h3,
.mission-box h3 {
    color: var(--primary-color);
    margin-top: 0;
}

.mission-box ul {
    margin-left: 1.5rem;
}

.mission-box li {
    margin-bottom: var(--spacing-sm);
}

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

.advantage-item {
    background-color: var(--light-gray);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--success);
}

.advantage-item h3 {
    margin-top: 0;
    color: var(--primary-color);
}

.about-cta {
    text-align: center;
    padding: var(--spacing-xl);
    background-color: var(--light-gray);
    border-radius: var(--border-radius);
    margin-top: var(--spacing-xl);
}

.about-cta h2 {
    color: var(--primary-color);
}

.about-cta .btn {
    margin: 0 var(--spacing-sm);
}

/* ============================================
   BLOG CONTENT
   ============================================ */

.blog-content {
    padding: var(--spacing-xl) 0;
}

.article-body {
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    line-height: 1.8;
}

.article-body p {
    text-align: justify;
}

.article-body h2 {
    text-align: left;
    color: var(--primary-color);
    margin-top: var(--spacing-xl);
}

.article-body h3 {
    text-align: left;
    color: var(--dark-gray);
    margin-top: var(--spacing-lg);
}

.article-body a {
    font-weight: 500;
}

.toc {
    background-color: var(--light-gray);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-xl);
    border-left: 4px solid var(--primary-color);
}

.toc h2 {
    margin-top: 0;
}

.toc ul {
    list-style: none;
    margin-left: 0;
}

.toc li {
    margin-bottom: 0.5rem;
}

.toc a {
    color: var(--primary-color);
    font-weight: 500;
}

.article-cta {
    background-color: var(--light-gray);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    text-align: center;
    margin-top: var(--spacing-xl);
    border-top: 4px solid var(--accent-color);
}

.article-cta h3 {
    color: var(--primary-color);
    margin-top: 0;
}

.article-cta .btn {
    margin: var(--spacing-sm);
}

/* Blog Sidebar */
.blog-sidebar {
    max-width: 300px;
    margin-left: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.related-posts,
.product-highlight,
.share-buttons {
    background-color: var(--light-gray);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-lg);
}

.related-posts h3,
.product-highlight h3,
.share-buttons h3 {
    margin-top: 0;
    color: var(--primary-color);
}

.related-posts ul {
    list-style: none;
    margin-left: 0;
}

.related-posts li,
.share-buttons li {
    margin-bottom: var(--spacing-sm);
}

.related-posts a,
.share-buttons a {
    display: block;
    padding: var(--spacing-sm) 0;
}

.highlight-card {
    background-color: var(--white);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--accent-color);
}

.highlight-card h4 {
    margin-top: 0;
}

/* Comments Section */
.comments {
    background-color: var(--light-gray);
    padding: var(--spacing-xl) 0;
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    background-color: var(--dark-gray);
    color: var(--white);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

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

.footer-column h4 {
    color: var(--white);
    margin-top: 0;
}

.footer-column ul {
    list-style: none;
    margin-left: 0;
}

.footer-column a {
    color: #ccc;
}

.footer-column a:hover {
    color: var(--white);
    text-decoration: none;
}

.footer-column p {
    font-size: 0.95rem;
    line-height: 1.6;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    text-align: center;
    font-size: 0.9rem;
}

.footer-links {
    margin-top: var(--spacing-sm);
}

.footer-links a {
    color: #ccc;
    margin: 0 var(--spacing-sm);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
    
    .header .container {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .navbar ul {
        gap: var(--spacing-md);
        font-size: 0.9rem;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        text-align: center;
    }
    
    .products-grid,
    .features-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .page-header h1,
    .blog-header h1 {
        font-size: 1.8rem;
    }
    
    .blog-sidebar {
        margin-left: 0;
        margin-top: var(--spacing-lg);
    }
    
    .vision-mission,
    .advantages-list {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    body {
        font-size: 14px;
    }
    
    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.25rem; }
    h3 { font-size: 1.1rem; }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero {
        padding: 3rem var(--spacing-sm);
    }
    
    .hero-content h1 {
        font-size: 1.5rem;
    }
    
    section {
        padding: var(--spacing-lg) 0;
    }
    
    .navbar ul {
        gap: var(--spacing-sm);
    }
    
    .navbar a {
        font-size: 0.85rem;
    }
    
    .blog-meta {
        flex-wrap: wrap;
        font-size: 0.85rem;
    }
    
    .meta {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
    .header, .footer, .sidebar, .cta-buttons {
        display: none;
    }
    
    body {
        font-size: 12px;
        line-height: 1.4;
    }
}