/* ========================================
   VitaSehat - Professional Design System
   ======================================== */

:root {
    --primary: #1b5e20;
    --primary-light: #2e7d32;
    --primary-bg: #e8f5e9;
    --accent: #f59e0b;
    --text: #1a1a1a;
    --text-light: #666;
    --text-muted: #999;
    --border: #eee;
    --bg-light: #fafafa;
    --white: #fff;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
    --radius: 12px;
    --radius-sm: 8px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text);
    background: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-light); }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ========== HEADER ========== */
.header {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 700;
    color: var(--primary);
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
}

.nav {
    display: flex;
    gap: 32px;
    list-style: none;
}

.nav a {
    color: var(--text);
    font-weight: 500;
    font-size: 15px;
    position: relative;
}

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

.nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.nav a:hover::after { width: 100%; }

.header-cta {
    background: var(--primary);
    color: white !important;
    padding: 10px 24px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 14px;
}

.header-cta:hover {
    background: var(--primary-light);
    transform: translateY(-1px);
}

/* ========== TOP BAR ========== */
.topbar {
    background: var(--primary);
    color: white;
    padding: 10px;
    text-align: center;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.3px;
}

/* ========== HERO ========== */
.hero {
    background: linear-gradient(135deg, #f5f9f5 0%, #e8f5e9 100%);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(46,125,50,0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: white;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
}

.hero h1 {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--text);
}

.hero h1 span { color: var(--primary); }

.hero p {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 32px;
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 15px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

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

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

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

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

/* ========== SECTION ========== */
.section {
    padding: 80px 0;
}

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

.section-title .subtitle {
    color: var(--primary);
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
}

.section-title h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 12px;
}

.section-title p {
    color: var(--text-light);
    font-size: 16px;
    max-width: 600px;
    margin: 0 auto;
}

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

.feature-card {
    background: white;
    padding: 32px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-bg);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: var(--primary-bg);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 18px;
    margin-bottom: 10px;
    font-weight: 600;
}

.feature-card p {
    color: var(--text-light);
    font-size: 14px;
}

/* ========== PRODUCTS ========== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.product-card {
    background: white;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border);
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.product-image {
    width: 100%;
    height: 240px;
    background: linear-gradient(135deg, var(--primary-bg) 0%, #c8e6c9 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 60px;
    position: relative;
}

.product-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    background: var(--accent);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
}

.product-info {
    padding: 20px;
}

.product-category {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.product-info h3 {
    font-size: 17px;
    margin-bottom: 8px;
    font-weight: 600;
}

.product-rating {
    color: var(--accent);
    font-size: 13px;
    margin-bottom: 10px;
}

.product-rating span {
    color: var(--text-muted);
    margin-left: 4px;
}

.product-price {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 14px;
}

.price-now {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary);
}

.price-old {
    font-size: 14px;
    color: var(--text-muted);
    text-decoration: line-through;
}

.product-btn {
    display: block;
    width: 100%;
    background: var(--primary);
    color: white;
    padding: 12px;
    border-radius: var(--radius-sm);
    text-align: center;
    font-weight: 600;
    font-size: 14px;
    transition: var(--transition);
}

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

/* ========== TESTIMONIALS ========== */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.testimonial-card {
    background: white;
    padding: 28px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
}

.testimonial-rating {
    color: var(--accent);
    margin-bottom: 14px;
    font-size: 16px;
}

.testimonial-text {
    color: var(--text);
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 20px;
    font-style: italic;
}

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

.author-avatar {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 16px;
}

.author-info h4 {
    font-size: 14px;
    margin-bottom: 2px;
}

.author-info span {
    font-size: 12px;
    color: var(--text-muted);
}

/* ========== BLOG ========== */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.blog-card {
    background: white;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border);
}

.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.blog-image {
    height: 200px;
    background: linear-gradient(135deg, var(--primary-bg) 0%, #c8e6c9 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
}

.blog-content {
    padding: 24px;
}

.blog-meta {
    display: flex;
    gap: 12px;
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.blog-content h3 {
    font-size: 18px;
    margin-bottom: 10px;
    line-height: 1.4;
}

.blog-content p {
    color: var(--text-light);
    font-size: 14px;
    margin-bottom: 14px;
}

.blog-link {
    color: var(--primary);
    font-weight: 600;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

/* ========== PAGE CONTENT ========== */
.page-hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    padding: 60px 0;
    text-align: center;
}

.page-hero h1 {
    font-size: 42px;
    margin-bottom: 12px;
    font-weight: 700;
}

.page-hero p {
    font-size: 17px;
    opacity: 0.9;
}

.page-content {
    padding: 60px 0;
}

.content-box {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 40px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

.content-box h2 {
    font-size: 24px;
    margin: 30px 0 14px;
    color: var(--primary);
}

.content-box h2:first-child { margin-top: 0; }

.content-box p {
    margin-bottom: 16px;
    color: var(--text-light);
    font-size: 15px;
    line-height: 1.7;
}

.content-box ul {
    margin: 16px 0 16px 24px;
    color: var(--text-light);
}

.content-box li { margin-bottom: 8px; }

/* ========== FOOTER ========== */
.footer {
    background: #0f2e11;
    color: #c8e6c9;
    padding: 60px 0 20px;
}

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

.footer-brand p {
    font-size: 14px;
    margin-top: 16px;
    opacity: 0.8;
    line-height: 1.7;
}

.footer h4 {
    color: white;
    font-size: 15px;
    margin-bottom: 18px;
    font-weight: 600;
}

.footer ul {
    list-style: none;
}

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

.footer a {
    color: #c8e6c9;
    font-size: 14px;
    opacity: 0.8;
}

.footer a:hover {
    opacity: 1;
    color: white;
}

.footer-bottom {
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
    font-size: 13px;
    opacity: 0.7;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
    .nav { display: none; }
    .hero h1 { font-size: 32px; }
    .hero p { font-size: 16px; }
    .section { padding: 50px 0; }
    .section-title h2 { font-size: 26px; }
    .footer-grid { grid-template-columns: 1fr; gap: 30px; }
    .header-cta { display: none; }
    .page-hero h1 { font-size: 28px; }
    .content-box { padding: 24px; }
}

@media (max-width: 480px) {
    .hero { padding: 50px 0; }
    .hero-buttons { flex-direction: column; }
    .btn { width: 100%; justify-content: center; }
}