/*!
 * GymHabitat Theme Styles
 * Version: 1.0.0
 * Description: Premium fitness equipment theme
 */

/* =============================================
   CSS Variables / Design Tokens
   ============================================= */
:root {
    --color-primary: #1a56db;
    --color-primary-dark: #1e40af;
    --color-primary-light: #dbeafe;
    --color-secondary: #f59e0b;
    --color-accent: #ef4444;
    --color-dark: #111827;
    --color-gray-900: #1f2937;
    --color-gray-800: #374151;
    --color-gray-700: #4b5563;
    --color-gray-600: #6b7280;
    --color-gray-500: #9ca3af;
    --color-gray-300: #d1d5db;
    --color-gray-200: #e5e7eb;
    --color-gray-100: #f3f4f6;
    --color-gray-50: #f9fafb;
    --color-white: #ffffff;

    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-heading: 'Roboto Condensed', 'Inter', sans-serif;

    --container-max: 1200px;
    --header-height: 72px;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
    --transition: 0.2s ease;
}

/* =============================================
   Reset & Base
   ============================================= */
*,
*::before,
*::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-gray-800);
    background: var(--color-white);
    -webkit-font-smoothing: antialiased;
}

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

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-dark);
}
h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 20px;
}

.screen-reader-text {
    clip: rect(1px,1px,1px,1px);
    position: absolute !important;
    height: 1px; width: 1px;
    overflow: hidden;
}

/* =============================================
   Buttons
   ============================================= */
.btn {
    display: inline-block;
    padding: 12px 28px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition);
    text-align: center;
    border: 2px solid transparent;
}
.btn-lg { padding: 16px 36px; font-size: 1.1rem; }
.btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
}
.btn-primary:hover {
    background: var(--color-primary-dark);
    color: var(--color-white);
}
.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}
.btn-outline:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

/* =============================================
   Header & Navigation
   ============================================= */
.site-header {
    background: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
    position: sticky;
    top: 0;
    z-index: 100;
    height: var(--header-height);
}
.header-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}
.site-branding { flex-shrink: 0; }
.site-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
}
.site-title a { color: var(--color-dark); }
.site-title a:hover { color: var(--color-primary); }
.site-description {
    font-size: 0.75rem;
    color: var(--color-gray-500);
    display: none;
}

.primary-navigation {}
.primary-menu {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 4px;
}
.primary-menu li { position: relative; }
.primary-menu a {
    display: block;
    padding: 10px 16px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-gray-700);
    border-radius: var(--radius-sm);
    white-space: nowrap;
}
.primary-menu a:hover { color: var(--color-primary); background: var(--color-gray-50); }
.primary-menu .cta-button {
    background: var(--color-primary);
    color: var(--color-white) !important;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    font-weight: 600;
}
.primary-menu .cta-button:hover { background: var(--color-primary-dark); }

/* Dropdown */
.primary-menu .sub-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 240px;
    padding: 8px 0;
    z-index: 200;
    list-style: none;
}
.primary-menu li:hover > .sub-menu { display: block; }
.primary-menu .sub-menu a {
    padding: 10px 20px;
    font-size: 0.9rem;
}
.primary-menu .sub-menu .sub-menu {
    left: 100%;
    top: 0;
}

/* Mobile menu toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}
.mobile-menu-toggle .bar {
    width: 24px;
    height: 2px;
    background: var(--color-gray-800);
    border-radius: 2px;
    transition: all var(--transition);
}

/* =============================================
   Footer
   ============================================= */
.site-footer {
    background: var(--color-gray-900);
    color: var(--color-gray-300);
    padding: 60px 0 0;
    margin-top: 80px;
}
.footer-container { max-width: var(--container-max); margin: 0 auto; padding: 0 20px; }
.footer-widgets {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--color-gray-800);
}
.footer-col {}
.footer-widget-title {
    color: var(--color-white);
    font-size: 1.1rem;
    margin-bottom: 16px;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a {
    color: var(--color-gray-400);
    font-size: 0.9rem;
}
.footer-col ul li a:hover { color: var(--color-white); }
.footer-contact { margin-top: 16px; }
.footer-contact p { font-size: 0.9rem; margin-bottom: 4px; }
.footer-contact a { color: var(--color-gray-400); }
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    font-size: 0.85rem;
}
.footer-menu { list-style: none; display: flex; gap: 20px; }
.footer-menu a { color: var(--color-gray-400); }

/* =============================================
   Breadcrumbs
   ============================================= */
.breadcrumbs {
    padding: 16px 0;
    font-size: 0.85rem;
    color: var(--color-gray-500);
}
.breadcrumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 4px; }
.breadcrumbs a { color: var(--color-gray-600); }
.breadcrumbs a:hover { color: var(--color-primary); }
.breadcrumbs .sep { margin: 0 4px; }
.breadcrumbs .current { color: var(--color-gray-800); font-weight: 500; }

/* =============================================
   Hero Section (Front Page)
   ============================================= */
.hero-section {
    background: linear-gradient(135deg, var(--color-gray-900) 0%, #1e3a5f 100%);
    color: var(--color-white);
    padding: 80px 0;
    text-align: center;
}
.hero-container { max-width: var(--container-max); margin: 0 auto; padding: 0 20px; }
.hero-title {
    font-size: 3rem;
    color: var(--color-white);
    margin-bottom: 16px;
}
.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-gray-300);
    max-width: 600px;
    margin: 0 auto 32px;
}
.hero-cta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-cta .btn-outline {
    color: var(--color-white);
    border-color: var(--color-white);
}
.hero-cta .btn-outline:hover {
    background: var(--color-white);
    color: var(--color-dark);
}

/* =============================================
   Sections (Front Page)
   ============================================= */
.section-title {
    text-align: center;
    margin-bottom: 8px;
}
.section-subtitle {
    text-align: center;
    color: var(--color-gray-600);
    margin-bottom: 40px;
    font-size: 1.1rem;
}
.categories-section, .solutions-section, .guides-section, .why-us-section {
    padding: 80px 0;
}
.categories-section, .guides-section, .why-us-section {
    background: var(--color-white);
}
.solutions-section {
    background: var(--color-gray-50);
}

/* Category Grid */
.category-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.category-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition);
}
.category-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}
.category-card-image {
    height: 180px;
    background: var(--color-gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
}
.cat-placeholder {
    color: var(--color-gray-400);
    font-size: 48px;
}
.category-card-content { padding: 20px; }
.category-card-content h3 {
    font-size: 1.2rem;
    margin-bottom: 8px;
}
.category-card-content p {
    font-size: 0.85rem;
    color: var(--color-gray-600);
    margin-bottom: 12px;
}
.category-link { color: var(--color-primary); font-weight: 600; font-size: 0.9rem; }
.section-cta { text-align: center; margin-top: 40px; }

/* Solutions Grid */
.solutions-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.solution-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
}
.solution-card h3 { margin-bottom: 12px; }
.solution-card p { color: var(--color-gray-600); margin-bottom: 20px; font-size: 0.95rem; }

/* Guides Grid */
.guides-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}
.guide-card {
    background: var(--color-gray-50);
    border-radius: var(--radius-lg);
    padding: 28px;
}
.guide-card h3 { font-size: 1.15rem; margin-bottom: 8px; }
.guide-card p { font-size: 0.85rem; color: var(--color-gray-600); }

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.feature-card {
    text-align: center;
    padding: 24px;
}
.feature-card h3 { font-size: 1.1rem; margin-bottom: 12px; }
.feature-card p { font-size: 0.9rem; color: var(--color-gray-600); }

/* =============================================
   Product Archive / Category Page
   ============================================= */
.archive-header {
    padding: 40px 0 24px;
    border-bottom: 1px solid var(--color-gray-200);
    margin-bottom: 32px;
}
.archive-title {
    font-size: 2rem;
    margin-bottom: 8px;
}
.archive-description {
    color: var(--color-gray-600);
    font-size: 1.05rem;
    max-width: 700px;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

/* Product Card */
.product-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition);
}
.product-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}
.product-card-link { display: block; color: inherit; }
.product-card-link:hover { color: inherit; }
.product-card-image {
    position: relative;
    background: var(--color-gray-50);
    aspect-ratio: 1;
    overflow: hidden;
}
.product-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.no-image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-400);
    font-size: 64px;
}
.product-badges {
    position: absolute;
    top: 10px;
    left: 10px;
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}
.badge {
    display: inline-block;
    padding: 4px 10px;
    font-size: 0.72rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    background: var(--color-primary-light);
    color: var(--color-primary);
}
.badge-level {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: var(--color-dark);
    color: var(--color-white);
}
.product-card-content { padding: 20px; }
.product-card-title {
    font-size: 1.1rem;
    margin-bottom: 6px;
}
.product-card-title:hover { color: var(--color-primary); }
.product-card-category {
    font-size: 0.8rem;
    color: var(--color-gray-500);
    margin-bottom: 8px;
}
.product-card-excerpt {
    font-size: 0.85rem;
    color: var(--color-gray-600);
    margin-bottom: 12px;
    line-height: 1.5;
}
.product-card-price {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-primary);
}

/* =============================================
   Single Product Detail
   ============================================= */
.single-product { padding: 20px 0 60px; }

/* ---------- Hero / Main Section ---------- */
.product-main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}
.product-gallery { position: relative; display: flex; flex-direction: column; gap: 16px; }

/* ── Main Image ── */
.gallery-main {
    position: relative;
    background: var(--color-gray-50);
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 1 / 1;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: zoom-in;
}
.gallery-main img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: opacity 0.25s ease;
}
.gallery-main img.switching { opacity: 0.4; }

/* ── Thumbnail Strip ── */
.gallery-thumbs-wrap {
    position: relative;
    display: flex;
    align-items: center;
}
.gallery-thumbs {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    scroll-behavior: smooth;
    scrollbar-width: none;
    -ms-overflow-style: none;
    padding: 4px 0;
    flex: 1;
}
.gallery-thumbs::-webkit-scrollbar { display: none; }

.gallery-thumb {
    flex: 0 0 auto;
    width: 80px;
    height: 80px;
    border: 2px solid var(--color-gray-200);
    border-radius: 8px;
    overflow: hidden;
    padding: 0;
    background: var(--color-gray-50);
    cursor: pointer;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}
.gallery-thumb:hover {
    border-color: var(--color-gray-400);
}
.gallery-thumb:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}
.gallery-thumb.active {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(var(--color-primary-rgb, 220 38 38), 0.25);
}
.gallery-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ── Scroll Buttons ── */
.gallery-scroll-btn {
    flex: 0 0 auto;
    width: 36px;
    height: 36px;
    border: 1px solid var(--color-gray-200);
    border-radius: 50%;
    background: #fff;
    color: var(--color-gray-700);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    padding: 0;
    z-index: 1;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}
.gallery-scroll-btn:hover {
    background: var(--color-gray-100);
    border-color: var(--color-gray-400);
    color: var(--color-gray-900);
}
.gallery-scroll-btn:disabled {
    opacity: 0.35;
    cursor: default;
}
.gallery-scroll-left  { margin-right: 8px; }
.gallery-scroll-right { margin-left: 8px; }
.product-grade-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 6px 16px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #fff;
}
.product-grade-badge.commercial { background: #059669; }
.product-grade-badge.home { background: #2563eb; }
.product-grade-badge.light-commercial { background: #d97706; }

.product-video { margin-top: 24px; }
.product-video h3 { margin-bottom: 12px; }
.video-embed {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.video-embed iframe {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
}

.product-info {}
.product-title { font-size: 2rem; margin-bottom: 8px; line-height: 1.2; }
.product-category { margin-bottom: 12px; display: flex; gap: 8px; flex-wrap: wrap; }
.cat-link {
    display: inline-block;
    padding: 3px 12px;
    background: var(--color-gray-100);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--color-gray-600);
}
.cat-link:hover { background: var(--color-primary); color: #fff; }

.product-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 20px;
}
.product-description { margin-bottom: 24px; line-height: 1.8; }
.product-description p { margin-bottom: 12px; }
.product-description ul { margin: 12px 0; padding-left: 20px; }
.product-description li { margin-bottom: 6px; }

/* Quick Specs Bar */
.product-quick-specs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 12px;
    margin-bottom: 20px;
    background: var(--color-gray-50);
    border-radius: var(--radius-md);
    padding: 16px;
}
.spec-item { text-align: center; }
.spec-icon { display: block; font-size: 1.2rem; margin-bottom: 4px; color: var(--color-primary); }
.spec-label {
    display: block;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-gray-500);
    margin-bottom: 4px;
}
.spec-value { font-weight: 700; color: var(--color-dark); font-size: 0.95rem; }

/* Taxonomies */
.product-taxonomies {
    margin-bottom: 24px;
    padding: 16px;
    background: var(--color-gray-50);
    border-radius: var(--radius-md);
}
.tax-row { margin-bottom: 8px; font-size: 0.9rem; display: flex; align-items: center; flex-wrap: wrap; gap: 6px; }
.tax-row:last-child { margin-bottom: 0; }
.tax-row strong { margin-right: 4px; min-width: fit-content; }
.badge {
    display: inline-block;
    padding: 4px 12px;
    background: var(--color-primary);
    color: #fff;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 500;
}
.badge-load { background: #6366f1; }
.badge-cert { background: #059669; }

.product-cta { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- Key Features Grid ---------- */
.product-features-section { margin-bottom: 48px; }
.product-features-section h2 { margin-bottom: 24px; font-size: 1.5rem; }
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}
.feature-card {
    display: flex;
    gap: 14px;
    padding: 20px;
    background: var(--color-gray-50);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--color-primary);
}
.feature-icon {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    background: var(--color-primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 700;
}
.feature-text h4 { font-size: 0.95rem; margin-bottom: 4px; }
.feature-text p { font-size: 0.85rem; color: var(--color-gray-600); margin: 0; }

/* ---------- Full Specs Section ---------- */
.product-specs-section {
    margin-bottom: 48px;
    padding: 32px;
    background: #fff;
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
}
.product-specs-section h2 { margin-bottom: 8px; font-size: 1.5rem; }
.specs-group-title {
    font-size: 1rem;
    color: var(--color-primary);
    margin: 28px 0 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--color-primary);
}
.specs-group-title:first-of-type { margin-top: 20px; }
.specs-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 4px;
}
.specs-table tr { border-bottom: 1px solid var(--color-gray-100); }
.specs-table tr:last-child { border-bottom: none; }
.specs-table th {
    text-align: left;
    padding: 10px 16px;
    font-weight: 600;
    color: var(--color-gray-700);
    width: 280px;
    font-size: 0.9rem;
}
.specs-table td { padding: 10px 16px; font-size: 0.9rem; }

/* ---------- FAQ ---------- */
.product-faq-section { margin-bottom: 48px; }
.product-faq-section h2 { margin-bottom: 24px; font-size: 1.5rem; }
.faq-item {
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    margin-bottom: 10px;
    overflow: hidden;
}
.faq-item summary {
    padding: 16px 20px;
    font-weight: 600;
    cursor: pointer;
    background: var(--color-gray-50);
    list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { background: var(--color-gray-100); }
.faq-item[open] summary { border-bottom: 1px solid var(--color-gray-200); }
.faq-answer { padding: 16px 20px; font-size: 0.9rem; line-height: 1.7; }

/* ---------- CTA Banner ---------- */
.product-cta-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    padding: 40px;
    margin-bottom: 48px;
    background: linear-gradient(135deg, var(--color-dark) 0%, #1f2937 100%);
    border-radius: var(--radius-lg);
    color: #fff;
    flex-wrap: wrap;
}
.cta-banner-content h2 { font-size: 1.5rem; margin-bottom: 8px; color: #fff; }
.cta-banner-content p { font-size: 0.95rem; opacity: 0.85; margin: 0; max-width: 500px; }
.cta-banner-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.cta-banner-actions .btn-outline { border-color: #fff; color: #fff; }
.cta-banner-actions .btn-outline:hover { background: #fff; color: var(--color-dark); }

/* ---------- Related Products ---------- */
.related-products { margin-bottom: 48px; }
.related-products h2 { margin-bottom: 24px; font-size: 1.5rem; }

/* =============================================
   Exercise Archive & Single
   ============================================= */
.exercise-filters {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 32px;
    padding: 24px;
    background: var(--color-gray-50);
    border-radius: var(--radius-lg);
    margin-bottom: 32px;
}
.filter-group h3 {
    font-size: 1rem;
    margin-bottom: 12px;
}
.filter-links {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.filter-links a {
    display: inline-block;
    padding: 6px 14px;
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--color-gray-700);
    transition: all var(--transition);
}
.filter-links a:hover {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.exercise-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.exercise-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition);
}
.exercise-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
}
.exercise-card-link { display: block; color: inherit; }
.exercise-card-image {
    position: relative;
    aspect-ratio: 16/9;
    background: var(--color-gray-50);
    overflow: hidden;
}
.exercise-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.exercise-card-image .badge-level {
    position: absolute;
    top: 10px;
    right: 10px;
}
.exercise-card-content { padding: 16px; }
.exercise-card-title {
    font-size: 1.05rem;
    margin-bottom: 8px;
}
.exercise-card-meta {
    display: flex;
    gap: 12px;
    font-size: 0.8rem;
    color: var(--color-gray-500);
}

/* Single Exercise */
.single-exercise { padding: 20px 0 60px; }
.exercise-header { margin-bottom: 32px; }
.exercise-title { font-size: 2rem; margin-bottom: 16px; }
.exercise-meta {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}
.meta-item { font-size: 0.9rem; }
.meta-item strong { margin-right: 8px; }
.meta-item a, .meta-item .badge { margin: 0 4px; }

.exercise-content-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 40px;
}
.exercise-main-content {}
.exercise-featured-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 24px;
}
.exercise-description { margin-bottom: 32px; line-height: 1.8; }
.exercise-video { margin-bottom: 32px; }
.exercise-video h2 { margin-bottom: 16px; }

.exercise-steps { margin-bottom: 32px; }
.exercise-steps h2 { margin-bottom: 20px; }
.steps-list { padding-left: 20px; }
.steps-list li {
    margin-bottom: 20px;
    padding-left: 8px;
}
.steps-list li h3 {
    font-size: 1rem;
    margin-bottom: 4px;
}

.exercise-tips {
    background: #fef3c7;
    border: 1px solid #fcd34d;
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 32px;
}
.exercise-tips h2 { margin-bottom: 12px; }
.tips-list { padding-left: 20px; margin: 0; }
.tips-list li { margin-bottom: 8px; font-size: 0.95rem; line-height: 1.6; }
.tips-list li:last-child { margin-bottom: 0; }

.exercise-sidebar {}
.sidebar-card {
    background: var(--color-gray-50);
    border-radius: var(--radius-lg);
    padding: 20px;
    margin-bottom: 20px;
}
.sidebar-card h3 {
    font-size: 1rem;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--color-gray-200);
}
.sidebar-link {
    display: block;
    padding: 8px 0;
    font-size: 0.9rem;
    border-bottom: 1px solid var(--color-gray-200);
}
.sidebar-list { list-style: none; }
.sidebar-list li { margin-bottom: 8px; }
.sidebar-list li a { font-size: 0.9rem; }

/* =============================================
   Blog / Posts
   ============================================= */
.content-with-sidebar {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 40px;
}
.content-area {}
.post-list { margin-bottom: 40px; }
.post-card {
    border-bottom: 1px solid var(--color-gray-200);
    padding-bottom: 24px;
    margin-bottom: 24px;
}
.post-card:last-child { border-bottom: none; }
.post-card-image {
    display: block;
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: 16px;
}
.post-card-title { font-size: 1.3rem; margin-bottom: 8px; }
.post-card-meta {
    font-size: 0.85rem;
    color: var(--color-gray-500);
    margin-bottom: 8px;
}
.post-card-excerpt {
    font-size: 0.95rem;
    color: var(--color-gray-600);
    margin-bottom: 12px;
}
.read-more { font-weight: 600; font-size: 0.9rem; }

.sidebar {
    padding-top: 20px;
}
.widget {
    margin-bottom: 32px;
}
.widget-title {
    font-size: 1.05rem;
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--color-primary);
}

/* Single Post */
.single-post { padding: 20px 0 60px; }
.post-header { margin-bottom: 24px; }
.post-title {
    font-size: 2rem;
    margin-bottom: 8px;
}
.post-meta {
    font-size: 0.9rem;
    color: var(--color-gray-500);
}
.post-thumbnail {
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 24px;
}
.post-content {
    font-size: 1.05rem;
    line-height: 1.9;
    margin-bottom: 32px;
}
.post-content h2 { margin: 32px 0 16px; }
.post-content h3 { margin: 24px 0 12px; }
.post-content p { margin-bottom: 20px; }
.post-content ul, .post-content ol { margin-bottom: 20px; padding-left: 24px; }
.post-content li { margin-bottom: 8px; }
.post-footer { margin-bottom: 32px; }
.post-tags { font-size: 0.9rem; }

.related-posts { margin-bottom: 40px; }
.related-posts h3 { margin-bottom: 20px; }
.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.related-post-item h4 { font-size: 0.95rem; }

/* =============================================
   Page / Commercial
   ============================================= */
.site-page, .page-commercial { padding: 20px 0 60px; }
.page-header { margin-bottom: 32px; }
.page-title { font-size: 2rem; }
.page-subtitle {
    font-size: 1.1rem;
    color: var(--color-gray-600);
    margin-top: 8px;
}
.page-content {
    font-size: 1.05rem;
    line-height: 1.8;
}
.page-content h2 { margin: 32px 0 16px; }
.page-content h3 { margin: 24px 0 12px; }
.page-content p { margin-bottom: 20px; }

/* =============================================
   Search / 404
   ============================================= */
.search-results { padding: 20px 0 60px; }
.search-result-item {
    padding: 24px 0;
    border-bottom: 1px solid var(--color-gray-200);
}
.search-result-item h2 { font-size: 1.2rem; margin-bottom: 4px; }
.search-result-item p { margin: 8px 0; }
.post-type-badge {
    display: inline-block;
    padding: 2px 8px;
    font-size: 0.72rem;
    font-weight: 600;
    background: var(--color-primary-light);
    color: var(--color-primary);
    border-radius: var(--radius-sm);
    margin-bottom: 8px;
}

.error-404 { padding: 80px 0; text-align: center; }
.error-content { max-width: 500px; margin: 0 auto; }
.error-title {
    font-size: 3rem;
    margin-bottom: 16px;
}
.error-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin: 32px 0;
    flex-wrap: wrap;
}
.error-search { margin-top: 32px; }

/* =============================================
   Pagination
   ============================================= */
.nav-links {
    display: flex;
    justify-content: center;
    gap: 8px;
    padding: 20px 0;
}
.nav-links .page-numbers {
    display: inline-block;
    padding: 8px 16px;
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    color: var(--color-gray-700);
    transition: all var(--transition);
}
.nav-links .page-numbers.current {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}
.nav-links .page-numbers:hover:not(.current) {
    background: var(--color-gray-50);
}

.no-results {
    text-align: center;
    padding: 40px 0;
    color: var(--color-gray-600);
}

/* =============================================
   Responsive
   ============================================= */
@media (max-width: 1024px) {
    .product-main { grid-template-columns: 1fr; }
    .exercise-content-layout { grid-template-columns: 1fr; }
    .content-with-sidebar { grid-template-columns: 1fr; }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .gallery-main { aspect-ratio: 4 / 3; }
}

@media (max-width: 768px) {
    .gallery-thumb { width: 64px; height: 64px; }
    .gallery-scroll-btn { width: 30px; height: 30px; }
}

@media (max-width: 768px) {
    .hero-title { font-size: 2rem; }
    .hero-section { padding: 60px 0; }

    .category-grid,
    .product-grid,
    .exercise-grid,
    .solutions-grid { grid-template-columns: repeat(2, 1fr); }
    .guides-grid { grid-template-columns: 1fr; }
    .features-grid { grid-template-columns: 1fr; }

    .footer-widgets { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }

    .product-quick-specs { grid-template-columns: repeat(2, 1fr); }
    .exercise-filters { grid-template-columns: 1fr; }

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

    /* Mobile Navigation */
    .mobile-menu-toggle { display: flex; }
    .primary-navigation {
        display: none;
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--color-white);
        border-bottom: 1px solid var(--color-gray-200);
        box-shadow: var(--shadow-lg);
    }
    .primary-navigation.active { display: block; }
    .primary-menu {
        flex-direction: column;
        padding: 8px 0;
    }
    .primary-menu .sub-menu {
        position: static;
        box-shadow: none;
        border: none;
        padding-left: 16px;
    }
}

@media (max-width: 480px) {
    .category-grid,
    .product-grid,
    .exercise-grid,
    .solutions-grid { grid-template-columns: 1fr; }
    .hero-cta { flex-direction: column; }
    .hero-title { font-size: 1.5rem; }
    .archive-title { font-size: 1.5rem; }
    .product-title { font-size: 1.5rem; }
    .product-cta { flex-direction: column; }
    .specs-table th { width: 120px; font-size: 0.8rem; }
    .specs-table td { font-size: 0.85rem; }
}