:root {
    /* Color Palette */
    --primary: #0B2B5C;
    /* Navy Blue */
    --primary-light: #1A4080;
    --accent: #FF5A00;
    /* Safety Orange */
    --accent-hover: #E04D00;
    --text-main: #333333;
    --text-muted: #666666;
    --bg-light: #F5F7FA;
    /* Light Grey */
    --bg-white: #FFFFFF;

    /* Typography */
    --font-sans: 'Inter', sans-serif;

    /* Transitions & Shadows */
    --transition: all 0.3s ease;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 12px 24px rgba(0, 0, 0, 0.12);
}

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

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

body {
    font-family: var(--font-sans);
    color: var(--text-main);
    line-height: 1.6;
    background-color: var(--bg-white);
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    color: var(--primary);
    line-height: 1.2;
}

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

ul {
    list-style: none;
}

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

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

.section {
    padding: 5rem 0;
}

.section-bg-light {
    background-color: var(--bg-light);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background-color: var(--accent);
    border-radius: 2px;
}

.section-title-left {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    position: relative;
}

.section-title-left::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 4px;
    background-color: var(--accent);
    border-radius: 2px;
}

.w-100 {
    width: 100%;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    border: none;
}

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

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

.btn-outline {
    background-color: transparent;
    color: var(--bg-white);
    border: 2px solid var(--bg-white);
}

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

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: transparent;
    padding: 1.5rem 0;
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    background-color: var(--bg-white);
    box-shadow: var(--shadow-sm);
    padding: 1rem 0;
}

.navbar.scrolled .logo,
.navbar.scrolled .nav-links a,
.navbar.scrolled .mobile-menu-btn {
    color: var(--primary);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--bg-white);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo i {
    color: var(--accent);
}

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

.nav-links a {
    color: var(--bg-white);
    font-weight: 500;
    font-size: 0.95rem;
}

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

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




/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    background-image: url('../assets/images/PABRIK.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(11, 43, 92, 0.9) 0%, rgba(11, 43, 92, 0.4) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    color: var(--bg-white);
    max-width: 800px;
}

.hero h1 {
    font-size: 3.5rem;
    color: var(--bg-white);
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    margin-bottom: 4rem;
}

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

.stat-item h3 {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: 0.2rem;
}

.stat-item p {
    font-size: 0.9rem;
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

/* Tentang K3 */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text p {
    margin-bottom: 2rem;
    color: var(--text-muted);
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.feature {
    display: flex;
    gap: 1rem;
}

.feature i {
    font-size: 2rem;
    color: var(--accent);
    flex-shrink: 0;
}

.feature h4 {
    margin-bottom: 0.5rem;
}

.feature p {
    font-size: 0.95rem;
    margin: 0;
}

.about-image img {
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
}

/* Regulasi K3 */
.regulation-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.reg-card {
    background-color: var(--bg-white);
    padding: 2.5rem 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: var(--transition);
    border-bottom: 4px solid transparent;
}

.reg-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent);
}

.reg-icon {
    width: 70px;
    height: 70px;
    background-color: rgba(255, 90, 0, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.reg-icon i {
    font-size: 2rem;
    color: var(--accent);
}

.reg-card h3 {
    margin-bottom: 1rem;
}

.reg-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Clickable reg-card as link */
.reg-card-link {
    text-decoration: none;
    color: inherit;
    cursor: pointer;
    display: flex;
    flex-direction: column;
}

.reg-card-link h3 {
    color: var(--primary);
}

.reg-card-link:hover {
    color: inherit;
}

.reg-card-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin-top: auto;
    padding-top: 1.25rem;
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 0.3px;
    transition: var(--transition);
}

.reg-card-cta i {
    font-size: 0.9rem;
    color: inherit;
}

.reg-card-link:hover .reg-card-cta {
    gap: 0.7rem;
}

/* Program K3 */
.program-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.prog-item {
    text-align: center;
    padding: 2rem 1rem;
}

.prog-item>i {
    font-size: 3.5rem;
    color: var(--primary);
    margin-bottom: 1rem;
    transition: var(--transition);
}

.prog-item:hover i {
    color: var(--accent);
    transform: scale(1.1);
}

.prog-item h4 {
    margin-bottom: 0.5rem;
}

.prog-item p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Industri */
.industry-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.ind-card {
    background-color: var(--bg-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.ind-card-link {
    text-decoration: none;
    color: inherit;
    cursor: pointer;
}

.ind-card-link h3 {
    color: var(--primary);
}

.ind-card-link:hover {
    color: inherit;
}

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

.ind-img {
    height: 180px;
    background-color: var(--primary-light);
    background-size: cover;
    background-position: center;
    flex-shrink: 0;
}

.ind-img.construction {
    background-image: url('../assets/images/ind_construction.png');
}

.ind-img.manufacturing {
    background-image: url('../assets/images/ind_manufacturing.png');
}

.ind-img.oilgas {
    background-image: url('../assets/images/ind_oilgas.png');
}

.ind-img.warehouse {
    background-image: url('../assets/images/ind_warehouse.png');
}

.ind-img.office {
    background-image: url('../assets/images/ind_office.png');
}

.ind-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.ind-content h3 {
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.ind-content p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 0;
}

.ind-card-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin-top: 1.25rem;
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 0.3px;
    transition: var(--transition);
}

.ind-card-cta i {
    font-size: 0.9rem;
    color: inherit;
}

.ind-card-link:hover .ind-card-cta {
    gap: 0.7rem;
}

/* Artikel Edukasi */
.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.article-card {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    background-color: var(--bg-white);
    transition: var(--transition);
}

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

.article-img {
    height: 200px;
    background-size: cover;
    background-position: center;
}

.bg-toolbox {
    background-image: url('../assets/images/art_toolbox.png');
}

.bg-risk {
    background-image: url('../assets/images/art_risk.png');
}

.bg-apd {
    background-image: url('../assets/images/art_apd.png');
}

.bg-culture {
    background-image: url('../assets/images/art_culture.png');
}

.article-body {
    padding: 1.5rem;
}

.tag {
    display: inline-block;
    padding: 0.2rem 0.8rem;
    background-color: rgba(11, 43, 92, 0.1);
    color: var(--primary);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.article-body h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.article-body p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.read-more {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 0.9rem;
}

.read-more:hover {
    color: var(--accent);
}

/* FAQ */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--bg-white);
    border-radius: 8px;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.faq-question {
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-weight: 600;
    color: var(--primary);
}

.faq-question i {
    transition: var(--transition);
}

.faq-answer {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    color: var(--text-muted);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-item.active .faq-answer {
    padding: 0 1.5rem 1.5rem;
    max-height: 200px;
}

/* Kontak & Footer */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-details {
    margin-top: 2rem;
}

.contact-details li {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    color: var(--text-muted);
}

.contact-details i {
    font-size: 1.5rem;
    color: var(--accent);
}

.contact-form {
    background-color: var(--bg-light);
    padding: 2.5rem;
    border-radius: 8px;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(11, 43, 92, 0.1);
}

.footer {
    background-color: var(--primary);
    color: var(--bg-white);
    padding: 3rem 0 2rem;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
}

.footer-bottom p {
    font-size: 0.9rem;
    opacity: 0.8;
}

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

.social-links a {
    color: var(--bg-white);
    font-size: 1.5rem;
    opacity: 0.8;
}

.social-links a:hover {
    opacity: 1;
    color: var(--accent);
}

/* Animations Trigger */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 992px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .hero-stats {
        gap: 1.5rem;
        flex-wrap: wrap;
    }

    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .regulation-grid,
    .article-grid {
        grid-template-columns: 1fr 1fr;
    }

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

    .nav-links {
        display: none;
    }

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

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .regulation-grid,
    .article-grid,
    .industry-grid {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

/* Article Detail Page Styles */
.article-header {
    padding: 8rem 0 3rem;
    background: var(--bg-light);
    text-align: center;
}

.article-header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary);
}

.article-meta {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.article-content-area {
    max-width: 800px;
    margin: 0 auto;
    padding: 3rem 2rem;
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-main);
}

.article-content-area h2 {
    margin: 2.5rem 0 1rem;
    color: var(--primary);
    font-size: 1.8rem;
}

.article-content-area h3 {
    margin: 2rem 0 1rem;
    color: var(--primary);
    font-size: 1.4rem;
}

.article-content-area p {
    margin-bottom: 1.5rem;
    text-align: justify;
}

.article-content-area ul,
.article-content-area ol {
    margin-left: 2rem;
    margin-bottom: 1.5rem;
}

.article-content-area li {
    margin-bottom: 0.5rem;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
    font-weight: 600;
    color: var(--primary);
    transition: var(--transition);
}

.back-link:hover {
    color: var(--accent);
}