/*
Theme Name: Flavor Industrial
Theme URI: https://factorytips.com
Description: A dark industrial theme for manufacturing and industrial blogs. Features dark navy header/footer, orange accents, and gear-themed design elements.
Version: 1.0.0
Author: Flavor Themes
Author URI: https://factorytips.com
Text Domain: flavor-industrial
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Tags: blog, industrial, manufacturing, dark, one-column, two-columns, custom-menu, featured-images
*/

/* ============================================
   CSS RESET & BASE
   ============================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --color-header: #1a2332;
    --color-footer: #0f1923;
    --color-hero: #0f1923;
    --color-accent: #e67e22;
    --color-accent-hover: #d35400;
    --color-accent-light: rgba(230, 126, 34, 0.12);
    --color-body-bg: #f4f5f7;
    --color-card-bg: #ffffff;
    --color-text: #2c3e50;
    --color-text-light: #6c7a89;
    --color-text-muted: #95a5a6;
    --color-white: #ffffff;
    --color-border: #e1e4e8;
    --color-dark-text: #e8eaed;
    --color-dark-text-muted: #9aa0a6;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Outfit', 'Inter', sans-serif;
    --max-width: 1200px;
    --content-width: 780px;
    --radius: 10px;
    --radius-sm: 6px;
    --shadow-card: 0 2px 8px rgba(0,0,0,0.06), 0 0 1px rgba(0,0,0,0.04);
    --shadow-card-hover: 0 8px 24px rgba(0,0,0,0.10), 0 0 1px rgba(0,0,0,0.06);
    --transition: 0.25s ease;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: 17px;
    line-height: 1.7;
    color: var(--color-text);
    background: var(--color-body-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.25;
    color: var(--color-text);
}

h1 { font-size: 2.4rem; }
h2 { font-size: 1.85rem; }
h3 { font-size: 1.45rem; }
h4 { font-size: 1.2rem; }

p { margin-bottom: 1.2em; }

/* ============================================
   READING PROGRESS BAR
   ============================================ */
#reading-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent), #f39c12);
    z-index: 10000;
    transition: width 0.1s linear;
}

/* ============================================
   HEADER
   ============================================ */
.site-header {
    background: var(--color-header);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: box-shadow var(--transition), background var(--transition);
}

.site-header.scrolled {
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
    background: rgba(26, 35, 50, 0.97);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.header-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    height: 64px;
}

.header-inner::after {
    content: '';
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-white);
    text-decoration: none;
}

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

.logo-icon {
    font-size: 1.5rem;
    line-height: 1;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 6px;
}

.main-nav a {
    color: rgba(255,255,255,0.75);
    font-family: var(--font-heading);
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    text-decoration: none;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--color-white);
    background: rgba(230, 126, 34, 0.15);
}

.main-nav a.active {
    color: var(--color-accent);
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-white);
    border-radius: 2px;
    transition: all var(--transition);
}

.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ============================================
   HOMEPAGE HERO
   ============================================ */
.hero-section {
    background: linear-gradient(135deg, var(--color-hero) 0%, #162033 50%, #1a2332 100%);
    padding: 60px 0 70px;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(230, 126, 34, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(230, 126, 34, 0.04) 0%, transparent 50%);
    pointer-events: none;
}

.hero-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

.hero-featured {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(230, 126, 34, 0.2);
    color: var(--color-accent);
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 6px 14px;
    border-radius: 20px;
    margin-bottom: 20px;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 2.6rem;
    font-weight: 800;
    line-height: 1.15;
    color: var(--color-white);
    margin-bottom: 16px;
}

.hero-title a {
    color: var(--color-white);
    text-decoration: none;
}

.hero-title a:hover {
    color: var(--color-accent);
}

.hero-excerpt {
    font-size: 1.05rem;
    color: var(--color-dark-text-muted);
    line-height: 1.65;
    margin-bottom: 24px;
}

.hero-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 0.85rem;
    color: var(--color-dark-text-muted);
}

.hero-meta span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.hero-image {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

.hero-image img {
    width: 100%;
    height: 360px;
    object-fit: cover;
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--color-accent);
    color: var(--color-white);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    text-decoration: none;
}

.hero-cta:hover {
    background: var(--color-accent-hover);
    color: var(--color-white);
    transform: translateY(-1px);
}

/* No-featured hero fallback */
.hero-no-featured {
    text-align: center;
    padding: 20px 0;
}

.hero-no-featured .hero-title {
    font-size: 2.8rem;
    margin-bottom: 12px;
}

.hero-no-featured .hero-excerpt {
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   CONTENT AREA
   ============================================ */
.site-content {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 50px 24px;
}

.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-header h2 {
    font-size: 1.8rem;
    margin-bottom: 8px;
}

.section-header p {
    color: var(--color-text-light);
    font-size: 1rem;
}

/* ============================================
   POST CARDS
   ============================================ */
.posts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.post-card {
    background: var(--color-card-bg);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
}

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

.post-card-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/10;
}

.post-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.post-card:hover .post-card-image img {
    transform: scale(1.04);
}

.post-card-image .card-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    background: var(--color-accent);
    color: var(--color-white);
    font-family: var(--font-heading);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 4px 12px;
    border-radius: 20px;
}

.post-card-body {
    padding: 22px 22px 18px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.post-card-title {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    line-height: 1.35;
    margin-bottom: 10px;
}

.post-card-title a {
    color: var(--color-text);
    text-decoration: none;
}

.post-card-title a:hover {
    color: var(--color-accent);
}

.post-card-excerpt {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: 16px;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.post-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    padding-top: 14px;
    border-top: 1px solid var(--color-border);
}

.post-card-meta .read-time {
    display: flex;
    align-items: center;
    gap: 4px;
}

.post-card-placeholder {
    background: linear-gradient(135deg, #1a2332 0%, #2c3e50 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: rgba(255,255,255,0.2);
}

/* ============================================
   AD ZONES
   ============================================ */
.ad-zone {
    background: var(--color-body-bg);
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-sm);
    padding: 20px;
    text-align: center;
    margin: 30px 0;
    min-height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.ad-zone-top {
    max-width: var(--max-width);
    margin: 0 auto 30px;
}

.ad-zone-bottom {
    max-width: var(--content-width);
    margin: 40px auto 0;
}

.ad-zone-inline {
    max-width: var(--content-width);
    margin: 35px auto;
}

/* ============================================
   SINGLE POST - ARTICLE HERO
   ============================================ */
.article-hero {
    background: linear-gradient(135deg, var(--color-hero) 0%, #162033 60%, #1a2332 100%);
    padding: 50px 0 60px;
    position: relative;
}

.article-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 70%, rgba(230, 126, 34, 0.05) 0%, transparent 60%);
    pointer-events: none;
}

.article-hero-inner {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

.breadcrumbs {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.82rem;
    color: var(--color-dark-text-muted);
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.breadcrumbs a {
    color: var(--color-dark-text-muted);
    text-decoration: none;
    transition: color var(--transition);
}

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

.breadcrumbs .sep {
    color: rgba(255,255,255,0.25);
}

.article-hero .category-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(230, 126, 34, 0.2);
    color: var(--color-accent);
    font-family: var(--font-heading);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 5px 14px;
    border-radius: 20px;
    margin-bottom: 16px;
}

.article-hero-title {
    font-family: var(--font-heading);
    font-size: 2.4rem;
    font-weight: 800;
    line-height: 1.2;
    color: var(--color-white);
    margin-bottom: 18px;
}

.article-hero-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    font-size: 0.88rem;
    color: var(--color-dark-text-muted);
    flex-wrap: wrap;
}

.article-hero-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.article-hero-meta .author-name {
    color: var(--color-accent);
    font-weight: 600;
}

/* ============================================
   ARTICLE CONTENT
   ============================================ */
.article-content-wrap {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 50px 24px;
}

.article-body {
    font-size: 1.06rem;
    line-height: 1.8;
    color: var(--color-text);
}

.article-body h2 {
    font-size: 1.7rem;
    margin: 2.2em 0 0.8em;
    padding-top: 0.5em;
}

.article-body h3 {
    font-size: 1.35rem;
    margin: 1.8em 0 0.6em;
}

.article-body p {
    margin-bottom: 1.3em;
}

.article-body ul,
.article-body ol {
    margin: 1em 0 1.5em 1.4em;
}

.article-body li {
    margin-bottom: 0.5em;
}

.article-body blockquote {
    border-left: 4px solid var(--color-accent);
    background: var(--color-accent-light);
    padding: 20px 24px;
    margin: 1.5em 0;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-style: italic;
    color: var(--color-text-light);
}

.article-body pre {
    background: var(--color-header);
    color: var(--color-dark-text);
    padding: 20px 24px;
    border-radius: var(--radius-sm);
    overflow-x: auto;
    margin: 1.5em 0;
    font-size: 0.9rem;
    line-height: 1.6;
}

.article-body code {
    background: rgba(230, 126, 34, 0.08);
    color: var(--color-accent-hover);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.92em;
}

.article-body pre code {
    background: none;
    color: inherit;
    padding: 0;
    border-radius: 0;
}

.article-body img {
    border-radius: var(--radius);
    margin: 1.5em 0;
}

.article-body a {
    color: var(--color-accent);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-thickness: 1px;
}

.article-body a:hover {
    color: var(--color-accent-hover);
}

/* Gear section divider */
.section-divider {
    text-align: center;
    margin: 2.5em 0 2em;
    color: var(--color-accent);
    font-size: 1.2rem;
    opacity: 0.6;
    letter-spacing: 0.5em;
}

/* ============================================
   AUTHOR BOX
   ============================================ */
.author-box {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    background: var(--color-card-bg);
    border-radius: var(--radius);
    padding: 28px;
    margin: 40px 0;
    box-shadow: var(--shadow-card);
    border-left: 4px solid var(--color-accent);
}

.author-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
    background: var(--color-header);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    font-size: 1.5rem;
    font-family: var(--font-heading);
    font-weight: 700;
}

.author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.author-info h4 {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    margin-bottom: 4px;
}

.author-info .author-label {
    font-size: 0.78rem;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 600;
    margin-bottom: 8px;
}

.author-info p {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.55;
    margin: 0;
}

/* ============================================
   RELATED POSTS
   ============================================ */
.related-posts {
    margin-top: 50px;
}

.related-posts h3 {
    font-family: var(--font-heading);
    font-size: 1.45rem;
    margin-bottom: 24px;
    text-align: center;
}

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

/* ============================================
   ARCHIVE HEADER
   ============================================ */
.archive-header {
    background: linear-gradient(135deg, var(--color-hero) 0%, #1a2332 100%);
    padding: 50px 0;
    text-align: center;
}

.archive-header-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.archive-header h1 {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    color: var(--color-white);
    margin-bottom: 8px;
}

.archive-header p {
    color: var(--color-dark-text-muted);
    font-size: 1rem;
}

/* ============================================
   PAGINATION
   ============================================ */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 50px;
}

.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 42px;
    height: 42px;
    padding: 0 12px;
    border-radius: var(--radius-sm);
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 600;
    transition: all var(--transition);
    text-decoration: none;
}

.pagination a {
    background: var(--color-card-bg);
    color: var(--color-text);
    box-shadow: var(--shadow-card);
}

.pagination a:hover {
    background: var(--color-accent);
    color: var(--color-white);
}

.pagination span.current {
    background: var(--color-accent);
    color: var(--color-white);
}

/* ============================================
   PAGE TEMPLATE
   ============================================ */
.page-hero {
    background: linear-gradient(135deg, var(--color-hero) 0%, #1a2332 100%);
    padding: 50px 0;
    text-align: center;
}

.page-hero h1 {
    font-family: var(--font-heading);
    font-size: 2.4rem;
    color: var(--color-white);
}

.page-content-wrap {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 50px 24px;
}

.page-body {
    font-size: 1.06rem;
    line-height: 1.8;
}

.page-body h2 {
    margin: 2em 0 0.8em;
}

.page-body h3 {
    margin: 1.6em 0 0.6em;
}

.page-body p {
    margin-bottom: 1.3em;
}

.page-body ul, .page-body ol {
    margin: 1em 0 1.5em 1.4em;
}

.page-body li {
    margin-bottom: 0.5em;
}

/* ============================================
   404 PAGE
   ============================================ */
.error-404-section {
    background: linear-gradient(135deg, var(--color-hero) 0%, #1a2332 100%);
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 60px 24px;
}

.error-404-content h1 {
    font-family: var(--font-heading);
    font-size: 7rem;
    font-weight: 900;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: 8px;
}

.error-404-content h2 {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    color: var(--color-white);
    margin-bottom: 16px;
}

.error-404-content p {
    color: var(--color-dark-text-muted);
    font-size: 1.05rem;
    margin-bottom: 30px;
}

.error-404-content .btn-home {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--color-accent);
    color: var(--color-white);
    font-family: var(--font-heading);
    font-weight: 600;
    padding: 14px 32px;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    text-decoration: none;
}

.error-404-content .btn-home:hover {
    background: var(--color-accent-hover);
    color: var(--color-white);
    transform: translateY(-2px);
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
    background: var(--color-footer);
    color: var(--color-dark-text-muted);
    padding: 50px 0 0;
}

.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand .footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 12px;
    text-decoration: none;
}

.footer-brand .footer-logo:hover {
    color: var(--color-accent);
}

.footer-brand p {
    font-size: 0.88rem;
    line-height: 1.6;
    color: var(--color-dark-text-muted);
    margin: 0;
}

.footer-col h4 {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-white);
    margin-bottom: 16px;
}

.footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

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

.footer-col ul a {
    color: var(--color-dark-text-muted);
    font-size: 0.88rem;
    text-decoration: none;
    transition: color var(--transition);
}

.footer-col ul a:hover {
    color: var(--color-accent);
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 0;
    font-size: 0.8rem;
    flex-wrap: wrap;
    gap: 12px;
}

.ai-disclosure {
    background: rgba(230, 126, 34, 0.08);
    border: 1px solid rgba(230, 126, 34, 0.15);
    border-radius: var(--radius-sm);
    padding: 12px 18px;
    margin-top: 24px;
    font-size: 0.8rem;
    line-height: 1.5;
    color: var(--color-dark-text-muted);
}

.ai-disclosure strong {
    color: var(--color-accent);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .posts-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero-featured {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .hero-image {
        order: -1;
    }

    .hero-title {
        font-size: 2.1rem;
    }

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

    .footer-top {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    body {
        font-size: 16px;
    }

    .hamburger {
        display: flex;
    }

    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--color-header);
        flex-direction: column;
        padding: 80px 30px 30px;
        gap: 4px;
        transition: right var(--transition);
        box-shadow: -10px 0 30px rgba(0,0,0,0.3);
        z-index: 999;
    }

    .main-nav.open {
        right: 0;
    }

    .main-nav a {
        font-size: 0.95rem;
        padding: 12px 16px;
        width: 100%;
        border-radius: var(--radius-sm);
    }

    .hero-section {
        padding: 40px 0 50px;
    }

    .hero-title {
        font-size: 1.8rem;
    }

    .hero-image img {
        height: 240px;
    }

    .article-hero-title {
        font-size: 1.8rem;
    }

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

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

    .footer-top {
        grid-template-columns: 1fr;
        gap: 30px;
    }

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

    .error-404-content h1 {
        font-size: 5rem;
    }

    .pagination {
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    .header-inner {
        height: 56px;
    }

    .site-logo {
        font-size: 1.15rem;
    }

    .hero-title {
        font-size: 1.55rem;
    }

    .article-hero-title {
        font-size: 1.5rem;
    }

    .article-hero-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    h1 { font-size: 1.8rem; }
    h2 { font-size: 1.5rem; }
}