:root {
    --bg-primary: #f0fdf4;
    --bg-secondary: #e0f2fe;
    --accent-main: #0ea5e9;
    --accent-secondary: #10b981;
    --accent-gradient: linear-gradient(135deg, #0ea5e9, #10b981);
    --text-dark: #0f172a;
    --text-muted: #475569;
    --glass-bg: rgba(255, 255, 255, 0.78);
    --glass-border: rgba(255, 255, 255, 0.6);
    --shadow-soft: 0 10px 35px rgba(15, 23, 42, 0.07);
    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
}

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

body {
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    color: var(--text-dark);
    font-family: var(--font-main);
    line-height: 1.75;
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.ambient-shape-1 {
    position: fixed;
    width: 50vw; height: 50vw;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.14) 0%, transparent 70%);
    border-radius: 50%;
    z-index: -1;
    filter: blur(80px);
    top: -10%; left: -10%;
}

.ambient-shape-2 {
    position: fixed;
    width: 45vw; height: 45vw;
    background: radial-gradient(circle, rgba(14, 165, 233, 0.14) 0%, transparent 70%);
    border-radius: 50%;
    z-index: -1;
    filter: blur(80px);
    bottom: -10%; right: -10%;
}

nav {
    background: var(--glass-bg);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--glass-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 16px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 20px rgba(15, 23, 42, 0.04);
}

.logo {
    font-size: 1.25rem;
    font-weight: 800;
    text-decoration: none;
    color: var(--text-dark);
    letter-spacing: -0.5px;
}

.logo span {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    gap: 20px;
    align-items: center;
    flex-wrap: wrap;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.25s ease;
    padding: 6px 12px;
    border-radius: 8px;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--accent-main);
    background: rgba(14, 165, 233, 0.1);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 5%;
    flex: 1;
}

.breadcrumb {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 25px;
    background: rgba(255,255,255,0.6);
    padding: 10px 18px;
    border-radius: 10px;
    display: inline-block;
}

.breadcrumb a {
    color: var(--accent-main);
    text-decoration: none;
    font-weight: 700;
}

.exclusive-banner {
    display: inline-block;
    background: rgba(14, 165, 233, 0.12);
    border: 1px solid rgba(14, 165, 233, 0.25);
    color: var(--accent-main);
    padding: 8px 20px;
    border-radius: 30px;
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 24px;
    text-transform: uppercase;
}

header {
    text-align: center;
    margin-bottom: 55px;
    padding-top: 15px;
}

h1 {
    font-size: clamp(2rem, 4.2vw, 3.8rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 22px;
    letter-spacing: -1px;
    color: var(--text-dark);
}

h1 span {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-text {
    font-size: clamp(1.05rem, 1.8vw, 1.22rem);
    color: var(--text-muted);
    max-width: 800px;
    margin: 0 auto 35px auto;
}

.btn-modern {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 15px 38px;
    font-size: 1.05rem;
    font-weight: 700;
    color: #fff;
    background: var(--accent-gradient);
    border: none;
    border-radius: 12px;
    text-decoration: none;
    box-shadow: 0 10px 25px rgba(14, 165, 233, 0.3);
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-modern:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(14, 165, 233, 0.42);
}

.category-title {
    font-size: 1.95rem;
    font-weight: 800;
    text-align: center;
    margin: 50px 0 30px 0;
    color: var(--text-dark);
    border-bottom: 2px solid rgba(14, 165, 233, 0.2);
    padding-bottom: 14px;
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
    gap: 28px;
    margin-bottom: 50px;
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    padding: 35px;
    border-radius: 20px;
    box-shadow: var(--shadow-soft);
    transition: all 0.35s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.glass-card:hover {
    transform: translateY(-6px);
    background: rgba(255, 255, 255, 0.92);
    box-shadow: 0 16px 45px rgba(15, 23, 42, 0.11);
}

.glass-card h3 {
    font-size: 1.35rem;
    color: var(--text-dark);
    margin-bottom: 14px;
    font-weight: 700;
}

.card-link {
    display: inline-block;
    margin-top: 18px;
    color: var(--accent-main);
    font-weight: 700;
    text-decoration: none;
    font-size: 0.95rem;
}

.card-link:hover {
    text-decoration: underline;
}

.highlight { color: #10b981; font-weight: 700; }
.highlight-blue { color: #0ea5e9; font-weight: 700; }

.seo-article {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    padding: 45px 55px;
    border-radius: 24px;
    box-shadow: var(--shadow-soft);
    margin-bottom: 50px;
}

.seo-article h2 {
    font-size: 1.7rem;
    color: var(--text-dark);
    margin-top: 35px;
    margin-bottom: 18px;
    font-weight: 800;
}

.seo-article h2:first-child { margin-top: 0; }

.seo-article h3 {
    font-size: 1.32rem;
    color: var(--accent-main);
    margin-top: 28px;
    margin-bottom: 14px;
    font-weight: 700;
}

.seo-article p {
    color: var(--text-muted);
    margin-bottom: 18px;
    font-size: 1.08rem;
}

.seo-article ul, .seo-article ol {
    margin-bottom: 24px;
    padding-left: 24px;
    color: var(--text-muted);
    font-size: 1.08rem;
}

.seo-article li { margin-bottom: 10px; }

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: 25px 0;
    background: rgba(255,255,255,0.65);
    border-radius: 14px;
    overflow: hidden;
}

.comparison-table th, .comparison-table td {
    padding: 15px 20px;
    text-align: left;
    border-bottom: 1px solid rgba(15, 23, 42, 0.08);
}

.comparison-table th {
    background: rgba(14, 165, 233, 0.14);
    color: var(--text-dark);
    font-weight: 800;
}

.blog-badge {
    display: inline-block;
    background: rgba(16, 185, 129, 0.15);
    color: #059669;
    font-size: 0.78rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 20px;
    margin-bottom: 12px;
}

.blog-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 14px;
}

footer {
    background: var(--glass-bg);
    border-top: 1px solid var(--glass-border);
    padding: 45px 5%;
    margin-top: 60px;
    text-align: center;
    color: var(--text-muted);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.footer-links a {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.92rem;
}

.footer-links a:hover {
    color: var(--accent-main);
}

@media (max-width: 768px) {
    nav { flex-direction: column; gap: 14px; }
    .nav-links { justify-content: center; gap: 10px; }
    .seo-article { padding: 28px 20px; }
}