/* Stabiliz.ru — Minimalist Engineering Theme */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --primary: #0284c7;
    --primary-hover: #0369a1;
    --primary-light: #e0f2fe;
    --surface: #ffffff;
    --bg-light: #f8fafc;
    --text-main: #0f172a;
    --text-muted: #475569;
    --border: #e2e8f0;
    --radius: 8px;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --container: 1200px;
}

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

body { background-color: var(--bg-light); color: var(--text-main); font-family: var(--font); line-height: 1.6; -webkit-font-smoothing: antialiased; }
h1, h2, h3, h4 { color: var(--text-main); font-weight: 700; line-height: 1.25; }
a { color: inherit; text-decoration: none; transition: all 0.2s ease; }
img { max-width: 100%; height: auto; display: block; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 1.5rem; }
.section { padding: 5rem 0; }

/* Header */
header { background: rgba(255, 255, 255, 0.95); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; padding: 1rem 0; }
.nav-inner { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 1.4rem; font-weight: 700; color: var(--text-main); letter-spacing: -0.5px; }
.logo span { color: var(--primary); }
.nav-links { display: flex; gap: 2rem; list-style: none; }
.nav-links a { font-size: 0.95rem; font-weight: 500; color: var(--text-muted); }
.nav-links a:hover, .nav-links a.active { color: var(--primary); }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; background: var(--primary); color: #fff; padding: 0.8rem 1.6rem; border-radius: var(--radius); font-weight: 600; font-size: 0.95rem; border: none; cursor: pointer; transition: all 0.2s; }
.btn:hover { background: var(--primary-hover); transform: translateY(-1px); }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text-main); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); }

/* Hero */
.hero { padding: 6rem 0; color: #fff; position: relative; }
.hero-content { max-width: 700px; position: relative; z-index: 2; }
.hero h1 { font-size: clamp(2.2rem, 4vw, 3.2rem); margin-bottom: 1.2rem; color: #fff; }
.hero p { font-size: 1.15rem; color: #e0f2fe; margin-bottom: 2rem; font-weight: 400; }

/* Cards & Grid */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 2rem; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: all 0.2s; display: flex; flex-direction: column; }
.card:hover { border-color: var(--primary); box-shadow: 0 10px 25px -5px rgba(2, 132, 199, 0.08); transform: translateY(-2px); }
.card-body { padding: 1.8rem; flex-grow: 1; display: flex; flex-direction: column; }
.card-tag { font-size: 0.8rem; font-weight: 600; color: var(--primary); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 0.8rem; }
.card-title { font-size: 1.25rem; margin-bottom: 0.8rem; line-height: 1.4; }
.card-title a:hover { color: var(--primary); }
.card-text { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 1.5rem; flex-grow: 1; }

/* Section Title */
.section-title { font-size: 2rem; margin-bottom: 2.5rem; text-align: center; }

/* SEO Block */
.seo-block { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 5rem 0; }
.seo-inner { display: flex; flex-direction: column; gap: 3rem; max-width: 900px; margin: 0 auto; }
.seo-text h2 { font-size: 1.8rem; margin-bottom: 1rem; color: var(--text-main); }
.seo-text h3 { font-size: 1.4rem; margin-bottom: 0.8rem; margin-top: 2rem; color: var(--text-main); }
.seo-text p { color: var(--text-muted); font-size: 1.05rem; margin-bottom: 1.2rem; }
.seo-text ul { margin-left: 1.5rem; color: var(--text-muted); margin-bottom: 1.5rem; }
.seo-text li { margin-bottom: 0.5rem; }

/* Single Article */
.post-header { padding: 4rem 0 2rem; text-align: center; max-width: 800px; margin: 0 auto; }
.post-title { font-size: 2.5rem; margin-bottom: 1rem; }
.post-meta { color: var(--text-muted); font-size: 0.9rem; }
.post-body { max-width: 800px; margin: 0 auto 5rem; background: var(--surface); padding: 3rem; border-radius: var(--radius); border: 1px solid var(--border); }
.post-body h2 { font-size: 1.8rem; margin: 2.5rem 0 1rem; color: var(--text-main); }
.post-body h3 { font-size: 1.3rem; margin: 1.5rem 0 0.8rem; }
.post-body p { margin-bottom: 1.2rem; color: var(--text-muted); font-size: 1.1rem; line-height: 1.7; }
.post-body ul, .post-body ol { margin: 1rem 0 1.5rem 1.5rem; color: var(--text-muted); font-size: 1.1rem; }
.post-body li { margin-bottom: 0.5rem; }
.post-body blockquote { border-left: 4px solid var(--primary); padding-left: 1.5rem; margin: 2rem 0; font-style: italic; color: var(--text-main); background: var(--primary-light); padding: 1.5rem; border-radius: 0 var(--radius) var(--radius) 0; font-size: 1.1rem; }

/* Contact Form */
.form-group { margin-bottom: 1.2rem; }
.form-group label { display: block; font-size: 0.9rem; font-weight: 500; margin-bottom: 0.4rem; color: var(--text-main); }
.form-control { width: 100%; padding: 0.75rem 1rem; border: 1px solid var(--border); border-radius: var(--radius); font-family: inherit; font-size: 1rem; outline: none; background: var(--surface); }
.form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.1); }

/* Footer */
footer { background: var(--surface); border-top: 1px solid var(--border); padding: 3rem 0; margin-top: 4rem; color: var(--text-muted); font-size: 0.9rem; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; }

/* Responsive */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .post-title { font-size: 1.8rem; }
    .post-body { padding: 1.5rem; }
    .hero { padding: 4rem 0; }
}