/* ===== Global Styles ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #e63946;
    --secondary-color: #1d3557;
    --accent-color: #457b9d;
    --light-color: #f1faee;
    --dark-color: #1d3557;
    --text-color: #333;
    --text-light: #666;
    --border-color: #e0e0e0;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #f8f9fa;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
    scroll-behavior: smooth;
}

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

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== Header ===== */
header {
    background: linear-gradient(135deg, #fff 0%, #f8f9fa 50%, #e9ecef 100%);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 30px;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    font-size: 30px;
    font-weight: 800;
    color: var(--secondary-color);
    display: flex;
    align-items: center;
    gap: 12px;
    transition: var(--transition);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.logo:hover {
    color: var(--primary-color);
    transform: scale(1.03);
}

.logo i {
    font-size: 36px;
    color: var(--primary-color);
    filter: drop-shadow(0 2px 4px rgba(230, 57, 70, 0.3));
}

.nav-menu {
    display: flex;
    gap: 8px;
    align-items: center;
}

.nav-menu a {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: var(--secondary-color);
    padding: 12px 18px;
    border-radius: 12px;
    transition: var(--transition);
    position: relative;
    background: rgba(255, 255, 255, 0.6);
    font-size: 14px;
}

.nav-menu a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transition: var(--transition);
    transform: translateX(-50%);
    border-radius: 3px;
}

.nav-menu a:hover {
    background: linear-gradient(135deg, var(--light-color) 0%, #fff 100%);
    color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.nav-menu a:hover::before {
    width: 80%;
}

.nav-menu a i {
    font-size: 18px;
    transition: var(--transition);
}

.nav-menu a:hover i {
    transform: scale(1.1);
}

.search-box {
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 30px;
    padding: 10px 20px;
    gap: 12px;
    transition: var(--transition);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.search-box:focus-within {
    box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.15);
    border-color: var(--primary-color);
    transform: scale(1.02);
}

.search-box input {
    border: none;
    background: transparent;
    outline: none;
    font-size: 14px;
    width: 220px;
    font-weight: 500;
    color: var(--text-color);
}

.search-box input::placeholder {
    color: #999;
}

.search-box button {
    border: none;
    background: linear-gradient(135deg, var(--primary-color) 0%, #c92a36 100%);
    cursor: pointer;
    color: #fff;
    font-size: 16px;
    transition: var(--transition);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(230, 57, 70, 0.3);
}

.search-box button:hover {
    transform: scale(1.1) rotate(10deg);
    box-shadow: 0 4px 12px rgba(230, 57, 70, 0.4);
}

.mobile-menu-btn {
    display: none;
    background: linear-gradient(135deg, var(--primary-color) 0%, #c92a36 100%);
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: #fff;
    width: 45px;
    height: 45px;
    border-radius: 12px;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(230, 57, 70, 0.3);
    transition: var(--transition);
}

.mobile-menu-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 16px rgba(230, 57, 70, 0.4);
}

.mobile-menu-close {
    display: none;
    background: linear-gradient(135deg, var(--primary-color) 0%, #c92a36 100%);
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: #fff;
    position: absolute;
    top: 25px;
    right: 25px;
    z-index: 1002;
    transition: var(--transition);
    width: 50px;
    height: 50px;
    border-radius: 12px;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(230, 57, 70, 0.3);
}

.mobile-menu-close:hover {
    transform: rotate(90deg) scale(1.05);
    box-shadow: 0 6px 16px rgba(230, 57, 70, 0.4);
}

/* ===== Banner ===== */
.banner {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #1a4a6d 30%, var(--accent-color) 60%, #1a4a6d 100%);
    background-size: 200% 200%;
    animation: gradientShift 20s ease infinite;
    color: #fff;
    padding: 120px 0 100px;
    margin-bottom: 80px;
    position: relative;
    overflow: hidden;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.banner::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 300%;
    height: 300%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.03) 0%, transparent 50%);
    animation: rotate 40s linear infinite;
}

/* @keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
} */

.banner::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(255,255,255,0.06)" stroke-width="1.5"/></svg>');
    background-size: 300px;
    animation: float 30s infinite linear;
    pointer-events: none;
}

/* @keyframes float {
    0% { transform: translateY(0) rotate(0deg); }
    100% { transform: translateY(-200px) rotate(360deg); }
} */

.banner-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
    max-width: 1400px;
    margin: 0 auto;
}

.banner-text {
    flex: 1;
    padding: 20px;
}

.banner h1 {
    font-size: 64px;
    margin-bottom: 30px;
    font-weight: 900;
    position: relative;
    z-index: 1;
    line-height: 1.1;
    letter-spacing: -2px;
    background: linear-gradient(135deg, #fff 0%, rgba(255, 255, 255, 0.95) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.banner h1::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    z-index: -1;
    border-radius: 20px;
    filter: blur(60px);
}

.banner p {
    font-size: 20px;
    opacity: 0.95;
    max-width: 700px;
    line-height: 2;
    position: relative;
    z-index: 1;
    font-weight: 400;
    margin-bottom: 20px;
}

.banner-image {
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.banner-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 24px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
    animation: slideIn 1.2s ease-out, floatImage 8s ease-in-out infinite;
    border: 4px solid rgba(255, 255, 255, 0.15);
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(60px) scale(0.9);
    }

    to {
        opacity: 1;
        transform: translateX(0) scale(1);
    }
}

@keyframes floatImage {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* Banner Stats */
.banner-stats {
    display: flex;
    gap: 60px;
    margin-top: 50px;
    justify-content: center;
    position: relative;
    z-index: 1;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 15px 35px;
    background: rgba(255, 255, 255, 0.12);
    border-radius: 20px;
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition);
}

.stat-item:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-8px) scale(1.05);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
    border-color: var(--primary-color);
}

.stat-item i {
    font-size: 25px;
    /* opacity: 0.5; */
    filter: drop-shadow(0 3px 6px rgba(0, 0, 0, 0.15));
}

.stat-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.stat-number {
    font-size: 25px;
    font-weight: 900;
    line-height: 1;
    background: linear-gradient(135deg, #fff 0%, rgba(255, 255, 255, 0.9) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 15px;
    opacity: 0.95;
    margin-top: 5px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

/* Banner CTA */
.banner-cta {
    display: flex;
    justify-content: center;
    gap: 25px;
    margin-top: 60px;
    position: relative;
    z-index: 1;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 20px 45px;
    border-radius: 40px;
    font-size: 18px;
    font-weight: 700;
    text-decoration: none;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1));
    transition: var(--transition);
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, #c92a36 100%);
    color: #fff;
    box-shadow: 0 10px 30px rgba(230, 57, 70, 0.4);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #c92a36 0%, #b02230 100%);
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(230, 57, 70, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: rgba(255, 255, 255, 0.7);
}

/* ===== Featured Articles ===== */
.featured-section {
    margin-bottom: 60px;
}

.section-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 30px;
    position: relative;
    padding-bottom: 10px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--primary-color);
}

.featured-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.article-card {
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
}

.article-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-color);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.article-card:hover::before {
    transform: scaleX(1);
}

.article-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.article-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.article-content {
    padding: 20px;
}

.article-category {
    display: inline-block;
    background: var(--primary-color);
    color: #fff;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    margin-bottom: 10px;
    max-width: 90px;
    text-align: center;
}

.article-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 10px;
    line-height: 1.4;
}

.article-excerpt {
    color: var(--text-light);
    font-size: 14px;
    margin-bottom: 15px;
    line-height: 1.6;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: #999;
}

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

/* ===== Category Sections ===== */
.category-section {
    margin-bottom: 60px;
}

.category-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.category-title {
    font-size: 26px;
    font-weight: 600;
    color: var(--secondary-color);
    display: flex;
    align-items: center;
    gap: 12px;
    position: relative;
}

.category-title i {
    color: var(--primary-color);
    font-size: 28px;
}

.view-all-btn {
    color: var(--primary-color);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 5px;
}

.view-all-btn:hover {
    text-decoration: underline;
}

.category-articles {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

/* ===== Featured Layout ===== */
.featured-layout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 35px;
}

.featured-layout .article-card {
    border-radius: 16px;
    overflow: visible;
    background: linear-gradient(135deg, #fff 0%, #f8f9fa 100%);
}

.featured-layout .article-card::before {
    height: 5px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

.featured-layout .article-card:hover {
    transform: translateY(-10px) scale(1.03);
    box-shadow: 0 15px 40px rgba(230, 57, 70, 0.25);
}

.featured-layout .article-image {
    height: 230px;
    border-radius: 16px 16px 0 0;
}

.featured-layout .article-content {
    padding: 25px;
}

.featured-layout .article-title {
    font-size: 20px;
    font-weight: 700;
}

/* ===== Basics Layout - Horizontal Cards ===== */
.basics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 25px;
}

.basics-grid .article-card {
    display: flex;
    flex-direction: row;
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    border: 1px solid var(--border-color);
}

.basics-grid .article-card::before {
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

.basics-grid .article-card:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.basics-grid .article-image {
    width: 220px;
    height: auto;
    min-height: 180px;
    object-fit: cover;
    border-radius: 12px 0 0 12px;
}

.basics-grid .article-content {
    padding: 25px;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.basics-grid .article-title {
    font-size: 20px;
    font-weight: 700;
}

/* ===== Driving Tips Layout - Modern Cards ===== */
.driving-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.driving-grid .article-card {
    border-radius: 18px;
    background: #fff;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
}

.driving-grid .article-card::before {
    height: 4px;
    background: linear-gradient(90deg, var(--accent-color), var(--primary-color));
}

.driving-grid .article-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.driving-grid .article-image {
    height: 200px;
    border-radius: 18px 18px 0 0;
}

.driving-grid .article-content {
    padding: 24px;
}

.driving-grid .article-title {
    font-size: 19px;
    font-weight: 700;
}

/* ===== Maintenance Layout - Large Cards ===== */
.maintenance-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 35px;
}

.maintenance-grid .article-card {
    border-radius: 20px;
    background: linear-gradient(135deg, #fff 0%, #f8f9fa 100%);
    border: 2px solid var(--border-color);
}

.maintenance-grid .article-card::before {
    height: 5px;
    background: linear-gradient(90deg, var(--secondary-color), var(--accent-color));
}

.maintenance-grid .article-card:hover {
    transform: translateY(-10px) rotate(0.5deg);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
    border-color: var(--primary-color);
}

.maintenance-grid .article-image {
    height: 250px;
    border-radius: 18px 18px 0 0;
}

.maintenance-grid .article-content {
    padding: 30px;
}

.maintenance-grid .article-title {
    font-size: 22px;
    font-weight: 800;
}

.maintenance-grid .article-excerpt {
    font-size: 15px;
    line-height: 1.7;
}

/* ===== Culture Layout - Masonry Style ===== */
.culture-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    grid-auto-rows: min-content;
}

.culture-grid .article-card {
    border-radius: 16px;
    background: #fff;
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.06);
    transition: var(--transition);
}

.culture-grid .article-card::before {
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.culture-grid .article-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(230, 57, 70, 0.2);
}

.culture-grid .article-image {
    height: 210px;
    border-radius: 16px 16px 0 0;
}

.culture-grid .article-content {
    padding: 24px;
}

.culture-grid .article-title {
    font-size: 18px;
    font-weight: 700;
}

.culture-grid .article-excerpt {
    font-size: 14px;
    line-height: 1.8;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ===== Technical Layout - Compact Grid ===== */
.technical-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.technical-grid .article-card {
    border-radius: 12px;
    background: #fff;
    border-left: 5px solid var(--accent-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.technical-grid .article-card::before {
    display: none;
}

.technical-grid .article-card:hover {
    transform: translateX(6px);
    box-shadow: var(--shadow-hover);
    border-left-color: var(--primary-color);
}

.technical-grid .article-image {
    height: 170px;
    border-radius: 12px 12px 0 0;
}

.technical-grid .article-content {
    padding: 20px;
}

.technical-grid .article-title {
    font-size: 18px;
    font-weight: 700;
}

.technical-grid .article-excerpt {
    font-size: 14px;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ===== Footer ===== */
footer {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #0f1c2e 100%);
    color: #fff;
    padding: 70px 0 30px;
    position: relative;
    overflow: hidden;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color), var(--primary-color));
    background-size: 200% 100%;
    animation: gradientMove 3s ease infinite;
}

@keyframes gradientMove {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 0.8fr 1.4fr 0.8fr;
    gap: 50px;
    margin-bottom: 50px;
}

.footer-logo {
    font-size: 26px;
    font-weight: 800;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    letter-spacing: -0.5px;
}

.footer-logo i {
    font-size: 32px;
    color: var(--primary-color);
    filter: drop-shadow(0 2px 4px rgba(230, 57, 70, 0.3));
}

.footer-description {
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.8;
    margin-bottom: 25px;
    font-size: 15px;
}

.footer-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 12px;
    letter-spacing: 0.3px;
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

.footer-nav ul li {
    margin-bottom: 14px;
}

.footer-nav a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 400;
    font-size: 15px;
}

.footer-nav a i {
    font-size: 16px;
    opacity: 0.6;
    transition: var(--transition);
    width: 20px;
    text-align: center;
}

.footer-nav a:hover {
    color: #fff;
    padding-left: 8px;
    transform: translateX(3px);
}

.footer-nav a:hover i {
    opacity: 1;
    color: var(--primary-color);
    transform: scale(1.1);
}

.social-links {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.social-link {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.social-link:hover {
    background: linear-gradient(135deg, var(--primary-color) 0%, #c92a36 100%);
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 8px 20px rgba(230, 57, 70, 0.4);
    border-color: transparent;
}

.social-link i {
    font-size: 20px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 25px;
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    font-weight: 500;
}
.mobile-search{
    display: none;
}
/* ===== Mobile Responsive ===== */
@media (max-width: 768px) {
    .header-container {
        display: grid;
        grid-template-columns: auto 45px;
        gap: 15px;
        padding: 12px 15px;
        align-items: center;
    }

    .logo {
        font-size: 22px;
    }

    .logo i {
        font-size: 28px;
    }

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

    .mobile-menu-close {
        display: flex;
        top: 20px;
        right: 20px;
    }

    .nav-menu {
        display: none;
        position: fixed;
        height: 100vh;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(135deg, #fff 0%, #f8f9fa 100%);
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding: 80px 20px 30px;
        gap: 16px;
        z-index: 1001;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu a {
        width: 100%;
        max-width: 340px;
        font-size: 24px;
        padding: 20px 30px;
        background: rgba(255, 255, 255, 0.9);
        border-radius: 16px;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 12px;
        text-align: center;
    }

    .nav-menu a i {
        font-size: 28px;
    }

    .nav-menu a:hover {
        transform: translateY(4px);
        background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
        color: #fff;
    }

    .nav-menu a:hover i {
        color: #fff;
    }

    .search-box {
        display: none;
    }

    .mobile-search {
        width: 100%;
        max-width: 340px;
        margin-bottom: 20px;
        display: block;
    }

    .mobile-search .search-box {
        display: flex !important;
        position: relative;
        width: 100%;
        margin: 0;
        padding: 10px 16px;
        background: #fff;
        border-radius: 30px;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    }

    .mobile-search .search-box input {
        width: 100%;
        font-size: 16px;
    }

    .mobile-search .search-box button {
        width: 40px;
        height: 40px;
        flex-shrink: 0;
    }

    .banner {
        padding: 40px 0 50px;
        min-height: auto;
        margin-bottom: 40px;
    }

    .banner-content {
        grid-template-columns: 1fr;
        gap: 25px;
        text-align: center;
    }

    .banner-text {
        padding: 0;
    }

    .banner-image {
        display: none;
    }

    .banner h1 {
        font-size: 36px;
        margin-bottom: 20px;
        letter-spacing: -1px;
    }

    .banner p {
        font-size: 16px;
        line-height: 1.7;
        margin-bottom: 15px;
    }

    .banner-stats {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 15px;
        margin-top: 30px;
        justify-content: center;
    }

    .stat-item {
        flex: 1;
        min-width: 140px;
        padding: 12px 20px;
        gap: 12px;
    }

    .stat-item i {
        font-size: 20px;
    }

    .stat-number {
        font-size: 20px;
    }

    .stat-label {
        font-size: 13px;
    }

    .banner-cta {
        flex-direction: column;
        width: 100%;
        gap: 15px;
        margin-top: 35px;
    }

    .btn {
        width: 100%;
        justify-content: center;
        padding: 16px 30px;
        font-size: 16px;
    }

    .featured-grid,
    .category-articles {
        grid-template-columns: 1fr;
    }

    /* Specific layout adjustments for mobile */
    .featured-layout {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .basics-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .basics-grid .article-card {
        flex-direction: column;
    }

    .basics-grid .article-image {
        width: 100%;
        min-height: 200px;
        border-radius: 12px 12px 0 0;
    }

    .basics-grid .article-content {
        padding: 20px;
    }

    .driving-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .maintenance-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .maintenance-grid .article-image {
        height: 200px;
    }

    .maintenance-grid .article-content {
        padding: 20px;
    }

    .culture-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .technical-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .category-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }

    .category-title {
        font-size: 22px;
    }

    .section-title {
        font-size: 24px;
    }

    .article-card {
        margin: 0 5px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .container {
        padding: 0 15px;
    }

    .featured-section,
    .category-section {
        margin-bottom: 40px;
    }
}

/* ===== Utility Classes ===== */
.text-center {
    text-align: center;
}

.mt-20 {
    margin-top: 20px;
}

.mb-20 {
    margin-bottom: 20px;
}