:root {
    --primary-color: #4A90E2;
    --secondary-color: #50E3C2;
    --dark-color: #333333;
    --light-color: #FFFFFF;
    --grey-color: #f4f4f4;
    --text-color: #555555;
    --font-family: 'Poppins', sans-serif;
}
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
body {
    font-family: var(--font-family);
    line-height: 1.6;
    background-color: var(--light-color);
    color: var(--text-color);
}
.container {
    max-width: 1100px;
    margin: auto;
    overflow: hidden;
    padding: 0 20px;
}
h1, h2, h3, h4 {
    color: var(--dark-color);
    line-height: 1.3;
}
h1 { font-size: 2.8rem; }
h2 { font-size: 2.2rem; }
h3 { font-size: 1.5rem; }
p {
    margin: 10px 0;
}
a {
    text-decoration: none;
    color: var(--primary-color);
}
ul {
    list-style: none;
}
img {
    max-width: 100%;
    height: auto;
}
.text-center {
    text-align: center;
}
.section-title {
    text-align: center;
    margin-bottom: 20px;
    padding-bottom: 10px;
    position: relative;
}
.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--primary-color);
    border-radius: 2px;
}
.section-subtitle {
    text-align: center;
    max-width: 600px;
    margin: -15px auto 40px auto;
    color: #777;
}
.header {
    background-color: var(--light-color);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 1.5rem;
    max-width: 1200px;
    margin: auto;
    min-height: 90px;
}
.nav-logo {
    background-color: var(--primary-color);
    padding: 5px;
    border-radius: 12px;
    display: inline-block;
    line-height: 0;
    transition: background-color 0.3s ease;
}
.nav-logo:hover {
    background-color: #3a7ac8;
}
.nav-logo img {
    height: 60px;
    width: 250px;
    display: block;
}
.nav-menu {
    display: flex;
    align-items: center;
}
.nav-item {
    margin-left: 25px;
}
.nav-link {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--dark-color);
    transition: color 0.3s ease;
}
.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}
.hamburger {
    display: none;
    cursor: pointer;
}
.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    -webkit-transition: all 0.3s ease-in-out;
    transition: all 0.3s ease-in-out;
    background-color: var(--dark-color);
}
.hero-section {
    background: linear-gradient(rgba(74, 144, 226, 0.8), rgba(74, 144, 226, 0.9)), url('/assets/images/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    color: var(--light-color);
    text-align: center;
    padding: 100px 20px;
}
.hero-section h1 {
    color: var(--light-color);
    margin-bottom: 20px;
}
.hero-section p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 30px auto;
}
.cta-button, .cta-button-secondary {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    text-align: center;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}
.cta-button {
    background-color: var(--secondary-color);
    color: var(--dark-color);
}
.cta-button:hover {
    background-color: #45d1b3;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(80, 227, 194, 0.4);
}
.cta-button-secondary {
    background-color: var(--light-color);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}
.cta-button-secondary:hover {
     background-color: var(--primary-color);
    color: var(--light-color);
}
.ad-container {
    padding: 30px 0;
    background-color: var(--grey-color);
    text-align: center;
}
.ad-label {
    font-size: 0.8rem;
    color: #999;
    margin-bottom: 5px;
    text-transform: uppercase;
}
.ad-box-responsive {
    background: #e9e9e9;
    border: 1px dashed #ccc;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #aaa;
    font-weight: 500;
}
.ad-box-leaderboard {
    width: 728px;
    height: 90px;
}
.features-section {
    padding: 80px 0;
}
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    text-align: center;
}
.feature-item i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}
.tool-section {
    padding: 80px 0;
    background-color: var(--grey-color);
}
.tool-placeholder {
    background: var(--light-color);
    border: 2px dashed var(--primary-color);
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #aaa;
    border-radius: 8px;
    margin: 30px 0;
}
.blog-preview-section {
    padding: 80px 0;
}
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}
.blog-card {
    background: var(--light-color);
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}
.blog-card a {
    color: var(--text-color);
}
.blog-thumbnail {
    width: 100%;
    height: 200px;
    object-fit: cover;
}
.blog-card-content {
    padding: 25px;
}
.blog-card-content h3 {
    margin-bottom: 10px;
    color: var(--dark-color);
}
.read-more {
    font-weight: 600;
    color: var(--primary-color);
    display: inline-block;
    margin-top: 15px;
}
.read-more i {
    margin-left: 5px;
    transition: margin-left 0.3s ease;
}
.blog-card:hover .read-more i {
    margin-left: 10px;
}
.footer {
    background-color: var(--dark-color);
    color: #ccc;
    padding: 60px 0 20px 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}
.footer-col h4 {
    color: var(--light-color);
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}
.footer-col h4::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 40px;
    height: 2px;
    background-color: var(--primary-color);
}
.footer-col p, .footer-col ul li {
    margin-bottom: 10px;
}
.footer-col a {
    color: #ccc;
    transition: color 0.3s ease;
}
.footer-col a:hover {
    color: var(--secondary-color);
}
.footer-logo-img {
    max-width: 250px;
    margin-bottom: 20px;
}
.social-icons {
    margin-top: 20px;
}
.social-icons a {
    display: inline-block;
    height: 40px;
    width: 40px;
    background-color: rgba(255,255,255,0.2);
    margin-right: 10px;
    text-align: center;
    line-height: 40px;
    border-radius: 50%;
    color: var(--light-color);
    transition: background-color 0.3s ease;
}
.social-icons a:hover {
    background-color: var(--primary-color);
}
.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #444;
    font-size: 0.9rem;
}
.page-header {
    background-color: var(--primary-color);
    color: var(--light-color);
    padding: 60px 20px;
    text-align: center;
}
.page-header h1 {
    color: var(--light-color);
}
.blog-page-section,
.content-page-section,
.pricing-section {
    padding: 80px 0;
    background-color: var(--grey-color);
}
.content-wrapper, .article-container {
    max-width: 800px;
    margin: auto;
    background: var(--light-color);
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
}
.content-wrapper h2 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
}
.content-wrapper h3 {
    font-size: 1.4rem;
    margin-top: 30px;
    margin-bottom: 15px;
    color: var(--primary-color);
}
.content-wrapper p {
    line-height: 1.8;
    margin-bottom: 15px;
}
.content-wrapper ul {
    list-style: none;
    padding-left: 0;
}
.content-wrapper ul li {
    padding-left: 30px;
    position: relative;
    margin-bottom: 12px;
}
.content-wrapper ul li::before {
    content: '\f058';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    color: var(--secondary-color);
    position: absolute;
    left: 0;
    top: 5px;
}
.article-section {
    padding: 80px 0;
    background-color: var(--grey-color);
}
.article-header h1 {
    margin-bottom: 20px;
}
.article-meta {
    display: flex;
    gap: 20px;
    color: #777;
    margin-bottom: 30px;
    border-bottom: 1px solid #eee;
    padding-bottom: 20px;
}
.article-content {
    font-size: 1.1rem;
    line-height: 1.8;
}
.article-content h2 {
    margin-top: 40px;
    margin-bottom: 20px;
}
.article-content p {
    margin-bottom: 20px;
}
.article-content ul, .article-content ol {
    margin-left: 20px;
    margin-bottom: 20px;
}
.article-content img {
    border-radius: 8px;
    margin: 30px 0;
}
.article-content blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: 20px;
    margin: 30px 0;
    font-style: italic;
    color: #555;
    background-color: #f9f9f9;
    padding-top: 10px;
    padding-bottom: 10px;
}
.cta-banner {
    background-color: var(--primary-color);
    color: var(--light-color);
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    margin: 40px 0;
}
.cta-banner h3 {
    color: var(--light-color);
}
.article-tags {
    margin-top: 40px;
}
.article-tags a {
    background-color: var(--grey-color);
    padding: 5px 15px;
    border-radius: 50px;
    margin-right: 10px;
    font-size: 0.9rem;
    color: var(--text-color);
    transition: background-color 0.3s;
}
.article-tags a:hover {
    background-color: #ddd;
}
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    align-items: center;
}
.pricing-card {
    background: var(--light-color);
    border: 1px solid #ddd;
    border-radius: 10px;
    padding: 40px;
    text-align: center;
    transition: all 0.3s ease;
}
.pricing-card.popular {
    transform: scale(1.05);
    border: 2px solid var(--primary-color);
    box-shadow: 0 10px 30px rgba(74, 144, 226, 0.2);
}
.pricing-card h3 {
    font-size: 1.8rem;
    margin-bottom: 10px;
}
.pricing-card .price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 20px;
}
.pricing-card .price span {
    font-size: 1rem;
    font-weight: 400;
    color: #777;
}
.pricing-card ul {
    margin: 30px 0;
    text-align: left;
}
.pricing-card ul li {
    margin-bottom: 15px;
    padding-left: 30px;
    position: relative;
}
.pricing-card ul li i {
    color: var(--secondary-color);
    position: absolute;
    left: 0;
    top: 5px;
}
.pricing-card ul li.disabled i {
    color: #ccc;
}
.pricing-card ul li.disabled {
    color: #aaa;
    text-decoration: line-through;
}
.contact-info-box {
    background-color: var(--grey-color);
    border-left: 5px solid var(--primary-color);
    padding: 20px;
    margin: 30px auto;
    text-align: left;
    max-width: 600px;
}
.contact-info-box h3 {
    margin-bottom: 10px;
}
.contact-info-box p {
    margin-bottom: 5px;
}
.contact-info-box a {
    font-weight: 600;
}
.contact-form-container {
    margin-top: 50px;
    border-top: 1px solid #eee;
    padding-top: 40px;
}
.contact-form .form-group {
    margin-bottom: 20px;
}
.contact-form label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    color: var(--dark-color);
}
.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-family: var(--font-family);
    font-size: 1rem;
    transition: border-color 0.3s ease;
}
.contact-form input[type="text"]:focus,
.contact-form input[type="email"]:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}
.contact-form button {
    width: 100%;
    border-radius: 5px;
}
@media (max-width: 992px) {
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    .pricing-card {
        margin-bottom: 30px;
    }
     .pricing-card.popular {
        transform: scale(1);
    }
}
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 80px;
        flex-direction: column;
        background-color: var(--light-color);
        width: 100%;
        height: 100vh;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
    }
    .nav-menu.active {
        left: 0;
    }
    .nav-item {
        margin: 1.5rem 0;
    }
    .hamburger {
        display: block;
    }
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    h1 { font-size: 2.2rem; }
    h2 { font-size: 1.8rem; }
    .feature-grid {
        grid-template-columns: 1fr;
    }
    .ad-box-leaderboard {
        width: 300px;
        height: 250px;
    }
    .content-wrapper, .article-container {
        padding: 20px;
    }
}
@media (max-width: 480px) {
     h1 { font-size: 1.8rem; }
}