/*
Theme Name: StroyUslugi Portal
Author: Senior Frontend Designer
Description: Концепция "Service Index": Деловой стиль, акцент на экспертном выборе подрядчиков и анализе строительных услуг.
Version: 1.0.0
Text Domain: stroyuslugi
*/

:root {
    /* Colors - Corporate & Trustworthy */
    --bg: #ffffff;
    --surface: #f0f4f8;
    --surface-dark: #0a192f;
    --primary: #004a99; /* Professional Blue */
    --accent: #ff9900; /* Amber Warning */
    --text: #1a202c;
    --text-muted: #4a5568;
    --border: #e2e8f0;
    
    /* Spacing */
    --gap: 2.5rem;
    --header-height: 100px;
    --container-width: 1200px;
    
    /* Fonts */
    --font-display: 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { 
    background-color: var(--bg); 
    color: var(--text); 
    font-family: var(--font-body); 
    line-height: 1.6; 
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
a { color: inherit; text-decoration: none; transition: 0.3s; }
ul { list-style: none; }

.container { 
    width: 100%;
    max-width: var(--container-width); 
    margin: 0 auto; 
    padding: 0 var(--gap); 
}

/* Typography */
h1, h2, h3 { font-weight: 900; line-height: 1.1; letter-spacing: -0.02em; color: var(--surface-dark); }

/* Header - Corporate Block Layout */
.site-header {
    height: var(--header-height);
    background: #fff;
    border-bottom: 4px solid var(--primary);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    gap: 4rem;
}

.logo {
    font-size: 1.6rem;
    font-weight: 950;
    text-transform: uppercase;
    flex-shrink: 0;
    color: var(--surface-dark);
}
.logo span { color: var(--primary); }

.main-nav ul { display: flex; gap: 3.5rem; }
.main-nav a { 
    font-weight: 700; 
    font-size: 0.85rem; 
    text-transform: uppercase;
    color: var(--text-muted);
}
.main-nav a:hover, .main-nav .current-menu-item a { color: var(--primary); }

.menu-toggle { display: none; background: var(--primary); color: #fff; border: none; padding: 1rem; cursor: pointer; }
.hamburger { width: 22px; height: 2px; background: currentColor; position: relative; display: block; }
.hamburger::before, .hamburger::after { content: ''; position: absolute; width: 100%; height: 2px; background: currentColor; left: 0; transition: 0.3s; }
.hamburger::before { top: -7px; }
.hamburger::after { top: 7px; }

/* Hero - Option C: Centered Text / Minimal Graphics */
.hero {
    padding: 12rem 0;
    background: var(--surface-dark);
    color: #fff;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.hero-graphic {
    position: absolute;
    inset: 0;
    opacity: 0.1;
    background-image: radial-gradient(var(--primary) 1px, transparent 1px);
    background-size: 40px 40px;
}

.hero-content { position: relative; z-index: 2; max-width: 850px; margin: 0 auto; }
.hero-label {
    display: inline-block;
    padding: 0.6rem 1.5rem;
    background: var(--primary);
    color: #fff;
    font-weight: 800;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 2.5rem;
}
.hero h1 { font-size: clamp(3rem, 7vw, 5.5rem); margin-bottom: 3rem; color: #fff; }
.hero h1 span { color: var(--accent); }
.hero-desc { font-size: 1.3rem; color: rgba(255,255,255,0.7); margin-bottom: 4.5rem; line-height: 1.4; }

.btn-uslugi {
    background: var(--accent);
    color: var(--surface-dark);
    padding: 1.5rem 4rem;
    font-weight: 900;
    text-transform: uppercase;
    font-size: 0.9rem;
    display: inline-block;
    transition: 0.4s;
    border: none;
}
.btn-uslugi:hover { background: #fff; transform: translateY(-5px); }

/* Expert Audit - New Block 1 */
.expert-audit {
    padding: 10rem 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
}

.audit-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6rem;
}

.audit-card {
    padding-left: 2rem;
    border-left: 1px solid var(--border);
}

.audit-card h3 {
    font-size: 2.2rem;
    margin: 2rem 0 1.5rem;
}

.audit-card p {
    font-size: 1.1rem;
    color: var(--text-muted);
    line-height: 1.7;
}

/* Trust Metrics - New Block 2 */
.trust-metrics {
    padding: 10rem 0;
    background: var(--surface);
}

.metrics-inner {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 8rem;
    align-items: center;
}

.metric-data {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.data-item {
    text-align: center;
}

.data-val {
    display: block;
    font-size: 3.5rem;
    font-weight: 950;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 1rem;
}

.data-item label {
    font-size: 0.8rem;
    font-weight: 800;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.1em;
}

@media (max-width: 991px) {
    .audit-grid, .metrics-inner {
        grid-template-columns: 1fr;
        gap: 5rem;
    }
}

/* Service Index Grid */
.service-index { padding: 10rem 0; background: #fff; }
.service-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 3rem;
}

.service-card {
    padding: 3rem;
    background: var(--surface);
    border-top: 5px solid var(--border);
    transition: 0.3s;
    min-width: 0;
}
.service-card:hover { transform: translateY(-10px); border-top-color: var(--primary); background: #fff; box-shadow: 0 30px 60px rgba(0,0,0,0.05); }
.service-cat { font-size: 0.7rem; font-weight: 800; color: var(--primary); margin-bottom: 1.5rem; display: block; text-transform: uppercase; }
.service-card h3 { font-size: 1.25rem; margin-bottom: 1rem; }

/* Post Grid */
.section-header {
    margin-bottom: 6rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid var(--border);
    padding-bottom: 2.5rem;
}

.post-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 4rem;
    padding-bottom: 10rem;
    width: 100%;
}

.post-card {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.card-img-wrap {
    width: 100%;
    aspect-ratio: 16/10;
    overflow: hidden;
    margin-bottom: 2.5rem;
}
.card-img { width: 100%; height: 100%; object-fit: cover; transition: 0.6s; }
.post-card:hover .card-img { transform: scale(1.05); }

.card-body { flex-grow: 1; display: flex; flex-direction: column; }
.card-cat { font-size: 0.75rem; font-weight: 900; color: var(--primary); margin-bottom: 1rem; text-transform: uppercase; }
.card-title { font-size: 1.7rem; margin-bottom: 1.5rem; line-height: 1.2; }
.card-excerpt { font-size: 1rem; color: var(--text-muted); margin-bottom: 3rem; flex-grow: 1; }

.btn-more {
    font-weight: 900;
    text-transform: uppercase;
    font-size: 0.8rem;
    color: var(--surface-dark);
    display: flex;
    align-items: center;
    gap: 0.8rem;
}
.btn-more::after { content: ''; width: 40px; height: 2px; background: var(--accent); transition: 0.3s; }
.post-card:hover .btn-more::after { width: 60px; }

/* Single Page & Post Styles - Unique For StroyUslugi */
.single-post-header { padding: 10rem 0 6rem; background: var(--surface); text-align: center; }
.single-post-header h1 { font-size: 4rem; max-width: 900px; margin: 0 auto; }
.breadcrumbs { justify-content: center; margin-bottom: 3.5rem; font-weight: 700; color: var(--text-muted); text-transform: uppercase; font-size: 0.75rem; }
.breadcrumbs .sep { margin: 0 1rem; color: var(--primary); }

.single-post-layout { max-width: 900px; margin: 0 auto 10rem; }
.post-content-body { font-size: 1.2rem; line-height: 1.9; color: var(--text); }
.post-content-body h2 { font-size: 2.4rem; margin: 5rem 0 2rem; border-left: 12px solid var(--primary); padding-left: 2.5rem; }
.post-content-body p { margin-bottom: 2.5rem; }

.post-content-body li { 
    list-style: none;
    margin-bottom: 1.5rem; 
    padding: 1.8rem 2.5rem 1.8rem 4.5rem;
    background: #fff;
    border: 1px solid var(--border);
    border-left: 6px solid var(--primary);
    position: relative;
    transition: 0.3s;
}
.post-content-body li::before {
    content: '';
    position: absolute;
    top: 2.2rem;
    left: 1.8rem;
    width: 10px;
    height: 10px;
    background: var(--accent);
    box-shadow: 4px 4px 0 var(--primary);
}
.post-content-body li:hover {
    background: var(--surface);
    transform: translateX(10px);
    border-color: var(--primary);
}

/* Pagination */
.pagination-container { margin: 8rem 0; display: flex; justify-content: center; }
.pagination-list { display: flex; gap: 0.8rem; }
.pagination-item a, .pagination-item span {
    width: 60px; height: 60px;
    display: flex; align-items: center; justify-content: center;
    border: 2px solid var(--border);
    font-weight: 900;
}
.pagination-item.is-active span { border-color: var(--primary); background: var(--primary); color: #fff; }

/* Footer */
.site-footer {
    padding: 10rem 0 5rem;
    background: var(--surface-dark);
    color: #fff;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 8rem;
    margin-bottom: 8rem;
}

.footer-col h4 { font-size: 0.85rem; color: var(--accent); text-transform: uppercase; margin-bottom: 3.5rem; letter-spacing: 0.1em; }
.footer-links li { margin-bottom: 1.5rem; }
.footer-links a { color: rgba(255,255,255,0.5); font-weight: 600; }
.footer-links a:hover { color: #fff; }

.footer-contact-item { margin-bottom: 3.5rem; }
.footer-contact-item label { display: block; font-size: 0.7rem; color: rgba(255,255,255,0.3); text-transform: uppercase; margin-bottom: 0.8rem; }
.footer-contact-item span { font-size: 1.3rem; font-weight: 800; }

.footer-bottom {
    padding-top: 4rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.3);
}

/* Mobile */
@media (max-width: 1024px) {
    .main-nav { display: none; }
    .main-nav.is-active {
        display: block; position: fixed; top: var(--header-height); left: 0; width: 100%; height: 100vh;
        background: #fff; padding: 4rem 0; z-index: 999;
    }
    .main-nav.is-active ul { flex-direction: column; align-items: center; gap: 3rem; }
    .menu-toggle { display: block; }
    .service-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .post-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .footer-grid { grid-template-columns: 1fr; gap: 5rem; }
}

@media (max-width: 768px) {
    .service-grid { grid-template-columns: 1fr; }
    .post-grid { grid-template-columns: 1fr; }
    .hero h1 { font-size: 3.2rem; }
    .single-post-header h1 { font-size: 2.5rem; }
}