:root {
    --primary: #1a5f7a;
    --primary-light: #2980b9;
    --secondary: #e67e22;
    --accent: #27ae60;
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --text-primary: #2c3e50;
    --text-secondary: #7f8c8d;
    --border: #e0e0e0;
    --card-shadow: 0 4px 15px rgba(0,0,0,0.08);
}

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

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
}

a { color: inherit; text-decoration: none; }

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

/* Header */
.header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 20px rgba(0,0,0,0.15);
}

.header .container { display: flex; align-items: center; justify-content: space-between; }

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
}

.logo-icon {
    width: 44px;
    height: 44px;
    background: var(--secondary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.nav { display: flex; gap: 6px; }

.nav-link {
    padding: 8px 16px;
    border-radius: 6px;
    transition: all 0.2s;
    font-weight: 500;
    color: rgba(255,255,255,0.85);
}

.nav-link:hover, .nav-link.active { background: rgba(255,255,255,0.2); color: white; }

.mobile-menu-btn { display: none; background: none; border: none; color: white; cursor: pointer; padding: 8px; }

/* Page Header */
.page-header {
    background: linear-gradient(135deg, var(--primary) 0%, #165f7a 100%);
    color: white;
    padding: 60px 0;
    text-align: center;
}

.page-header h1 { font-size: 2.5rem; margin-bottom: 10px; }
.page-header p { opacity: 0.9; font-size: 1.1rem; }

/* Sections */
.section { padding: 60px 0; }

/* Cards */
.card {
    background: white;
    border-radius: 12px;
    padding: 24px;
    box-shadow: var(--card-shadow);
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover { transform: translateY(-3px); box-shadow: 0 8px 25px rgba(0,0,0,0.12); }

/* Grid layouts */
.tools-grid, .ads-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.tool-card {
    display: block;
    padding: 28px;
    text-align: center;
    transition: all 0.3s;
    border: 2px solid transparent;
}

.tool-card:hover { border-color: var(--secondary); transform: translateY(-4px); }

.tool-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 28px;
}

.tool-card h3 { margin-bottom: 8px; color: var(--primary); }
.tool-card p { color: var(--text-secondary); font-size: 14px; }

.tool-tag {
    display: inline-block;
    background: var(--secondary);
    color: white;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11px;
    margin-top: 10px;
}

/* Ad cards */
.ad-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: transform 0.2s;
}

.ad-card:hover { transform: translateY(-4px); }

.ad-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.ad-info { padding: 16px; }

.ad-category {
    display: inline-block;
    background: var(--primary);
    color: white;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    margin-bottom: 8px;
}

.ad-card h3 {
    color: var(--text-primary);
    margin-bottom: 6px;
    font-size: 1rem;
}

.ad-card .price {
    color: var(--secondary);
    font-weight: 700;
    font-size: 1.1rem;
}

.ad-card .location {
    color: var(--text-secondary);
    font-size: 12px;
    margin-top: 6px;
}

/* Articles */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 24px;
}

.article-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: transform 0.2s;
}

.article-card:hover { transform: translateY(-4px); }
.article-card img { width: 100%; height: 200px; object-fit: cover; }

.article-info { padding: 20px; }

.article-category {
    display: inline-block;
    background: var(--primary);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    margin-bottom: 10px;
    width: fit-content;
}

.article-card h3 { color: var(--primary); margin-bottom: 8px; font-size: 1.1rem; }
.article-card p { color: var(--text-secondary); font-size: 14px; }

.article-meta {
    display: flex;
    gap: 16px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
    font-size: 12px;
    color: var(--text-secondary);
}

/* Article content */
.article-content { padding: 40px 0; }
.article-content img { border-radius: 12px; margin-bottom: 30px; }
.article-content p { margin-bottom: 20px; font-size: 17px; line-height: 1.8; }
.article-content h2 { color: var(--primary); margin: 40px 0 20px; font-size: 1.8rem; }
.article-content h3 { color: var(--primary); margin: 30px 0 15px; font-size: 1.4rem; }

.lead { font-size: 20px; color: var(--text-secondary); margin-bottom: 30px; line-height: 1.7; }

.article-tags { margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--border); }
.tag { display: inline-block; background: var(--bg-secondary); color: var(--text-secondary); padding: 6px 14px; border-radius: 20px; font-size: 13px; margin-right: 8px; margin-bottom: 8px; }

/* Forms */
.form-group { margin-bottom: 20px; }
.form-label { display: block; margin-bottom: 8px; font-weight: 600; color: var(--text-primary); }
.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 15px;
    transition: border-color 0.2s;
    font-family: inherit;
}

.form-input:focus, .form-select:focus, .form-textarea:focus { outline: none; border-color: var(--primary); }
.form-textarea { resize: vertical; min-height: 120px; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    font-size: 15px;
}

.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-light); }
.btn-secondary { background: var(--bg-secondary); color: var(--text-primary); border: 2px solid var(--border); }
.btn-secondary:hover { border-color: var(--primary); color: var(--primary); }

/* Hero */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    padding: 80px 0;
    text-align: center;
}

.hero h1 { font-size: 3rem; margin-bottom: 20px; }
.hero p { font-size: 1.2rem; opacity: 0.9; max-width: 600px; margin: 0 auto 30px; }
.hero-buttons { display: flex; gap: 16px; justify-content: center; }

/* Footer */
.footer {
    background: var(--primary);
    color: white;
    padding: 60px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-links h4 { margin-bottom: 16px; color: var(--secondary); }
.footer-links a { display: block; padding: 6px 0; opacity: 0.8; transition: opacity 0.2s; }
.footer-links a:hover { opacity: 1; }

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    text-align: center;
    opacity: 0.7;
}

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin: 40px 0;
}

.stat-card {
    text-align: center;
    padding: 30px;
    background: white;
    border-radius: 12px;
    box-shadow: var(--card-shadow);
}

.stat-number { font-size: 3rem; font-weight: 700; color: var(--primary); }
.stat-label { color: var(--text-secondary); margin-top: 8px; }

/* Category icons */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 16px;
}

.category-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
    background: white;
    border-radius: 12px;
    transition: all 0.2s;
    cursor: pointer;
    border: 2px solid transparent;
}

.category-item:hover { border-color: var(--secondary); transform: translateY(-2px); }
.category-item .icon { font-size: 2rem; margin-bottom: 8px; }
.category-item span { font-weight: 600; color: var(--text-primary); font-size: 14px; }

/* Mobile */
@media (max-width: 768px) {
    .nav { display: none; }
    .mobile-menu-btn { display: block; }
    .nav.mobile-open { display: flex; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: var(--primary); padding: 20px; }
    .footer-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .tools-grid, .articles-grid, .ads-grid { grid-template-columns: 1fr; }
    .hero h1 { font-size: 2rem; }
}

/* Cookie banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--primary);
    color: white;
    padding: 20px;
    z-index: 1000;
    display: none;
}

.cookie-banner.show { display: block; }