/* ============================================
   PolinRus Construction LLC — Main Stylesheet
   Brand Color: Polin Orange #E87722
   ============================================ */

:root {
    --polin-orange: #E87722;
    --polin-orange-dark: #c45e12;
    --polin-orange-light: #f09a55;
    --text-dark: #1a1a1a;
    --text-medium: #444444;
    --text-light: #666666;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --border: #e0e0e0;
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-hover: 0 8px 30px rgba(0,0,0,0.12);
    --radius: 8px;
    --transition: all 0.3s ease;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background: var(--bg-white);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

/* Header */
.site-header {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.04);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-dark);
}

.logo img { height: 48px; width: auto; }

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    line-height: 1.2;
}

.logo-text small {
    display: block;
    font-size: 0.7rem;
    font-weight: 400;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Navigation */
.main-nav ul {
    display: flex;
    list-style: none;
    gap: 0;
}

.main-nav a {
    display: block;
    padding: 10px 14px;
    color: var(--text-medium);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: var(--transition);
    border-radius: var(--radius);
}

.main-nav a:hover {
    color: var(--polin-orange);
    background: rgba(232,119,34,0.06);
}

.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    min-width: 260px;
    padding: 8px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    list-style: none;
    flex-direction: column;
    gap: 0;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    padding: 10px 18px;
    font-size: 0.8rem;
    text-transform: none;
    letter-spacing: 0;
    border-radius: 0;
    white-space: nowrap;
}

.dropdown-menu a:hover {
    background: var(--bg-light);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.lang-switch {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 2px solid var(--polin-orange);
    border-radius: 50%;
    color: var(--polin-orange);
    font-size: 0.8rem;
    font-weight: 700;
    text-decoration: none;
    transition: var(--transition);
}

.lang-switch:hover {
    background: var(--polin-orange);
    color: var(--bg-white);
}

.mobile-toggle {
    display: none;
    width: 40px;
    height: 40px;
    border: none;
    background: none;
    cursor: pointer;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
}

.mobile-toggle span {
    display: block;
    width: 28px;
    height: 2px;
    background: var(--text-dark);
    transition: var(--transition);
    border-radius: 2px;
}

.mobile-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(6px, -6px); }

/* Main content */
.site-main {
    flex: 1;
}

/* Page Hero */
.page-hero {
    background: linear-gradient(135deg, var(--text-dark) 0%, #2a2a2a 100%);
    color: var(--bg-white);
    padding: 80px 0 60px;
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../images/hero-pattern.png') center/cover;
    opacity: 0.1;
}

.page-hero .container {
    position: relative;
    z-index: 1;
}

.page-hero h1 {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 16px;
    line-height: 1.2;
}

.page-hero .lead {
    font-size: 1.15rem;
    color: rgba(255,255,255,0.85);
    max-width: 700px;
}

.page-hero .cta-btn {
    display: inline-block;
    margin-top: 28px;
    padding: 14px 36px;
    background: var(--polin-orange);
    color: var(--bg-white);
    text-decoration: none;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    border: 2px solid var(--polin-orange);
}

.page-hero .cta-btn:hover {
    background: transparent;
    color: var(--polin-orange);
}

/* Breadcrumb */
.breadcrumb {
    background: var(--bg-light);
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
}

.breadcrumb ul {
    display: flex;
    list-style: none;
    gap: 8px;
    font-size: 0.8rem;
    color: var(--text-light);
}

.breadcrumb a {
    color: var(--text-medium);
    text-decoration: none;
}

.breadcrumb a:hover { color: var(--polin-orange); }

.breadcrumb li:not(:last-child)::after {
    content: '/';
    margin-left: 8px;
    color: var(--border);
}

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

.content-section.alt {
    background: var(--bg-light);
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.section-header p {
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.content-grid.two-col {
    grid-template-columns: repeat(2, 1fr);
}

.content-grid.three-col {
    grid-template-columns: repeat(3, 1fr);
}

/* Cards */
.card {
    background: var(--bg-white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border);
}

.card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}

.card-img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    background: var(--bg-light);
}

.card-body {
    padding: 24px;
}

.card-body h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.card-body p {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.6;
}

.card-link {
    display: inline-block;
    margin-top: 14px;
    color: var(--polin-orange);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.card-link:hover { color: var(--polin-orange-dark); }

/* Feature blocks */
.feature-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
    margin-bottom: 48px;
}

.feature-block.reverse {
    direction: rtl;
}

.feature-block.reverse > * {
    direction: ltr;
}

.feature-img {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.feature-img img {
    width: 100%;
    height: auto;
    display: block;
}

.feature-text h2 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.feature-text h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin: 24px 0 12px;
    color: var(--polin-orange);
}

.feature-text p {
    color: var(--text-medium);
    margin-bottom: 12px;
    line-height: 1.7;
}

.feature-text ul {
    margin: 16px 0;
    padding-left: 20px;
}

.feature-text ul li {
    margin-bottom: 8px;
    color: var(--text-medium);
}

/* Lists */
.check-list {
    list-style: none;
    padding: 0;
}

.check-list li {
    position: relative;
    padding-left: 28px;
    margin-bottom: 10px;
    color: var(--text-medium);
}

.check-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 6px;
    width: 16px;
    height: 16px;
    background: var(--polin-orange);
    border-radius: 50%;
    opacity: 0.2;
}

.check-list li::after {
    content: '';
    position: absolute;
    left: 4px;
    top: 10px;
    width: 5px;
    height: 8px;
    border-right: 2px solid var(--polin-orange);
    border-bottom: 2px solid var(--polin-orange);
    transform: rotate(45deg);
}

/* Stats / Numbers */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin: 48px 0;
}

.stat-item {
    text-align: center;
    padding: 32px 20px;
    background: var(--bg-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--polin-orange);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Contact Form */
.contact-form {
    max-width: 600px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-medium);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 0.95rem;
    color: var(--text-dark);
    transition: var(--transition);
    background: var(--bg-white);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--polin-orange);
    box-shadow: 0 0 0 3px rgba(232,119,34,0.1);
}

.form-group textarea {
    min-height: 140px;
    resize: vertical;
}

.btn-primary {
    display: inline-block;
    padding: 14px 36px;
    background: var(--polin-orange);
    color: var(--bg-white);
    border: 2px solid var(--polin-orange);
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary:hover {
    background: transparent;
    color: var(--polin-orange);
}

.form-status {
    margin-top: 16px;
    padding: 14px 18px;
    border-radius: var(--radius);
    font-size: 0.9rem;
}

.form-status.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.form-status.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Contact page layout */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.contact-info h3 {
    font-size: 1.3rem;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.contact-info p {
    color: var(--text-medium);
    margin-bottom: 12px;
}

.contact-info a {
    color: var(--polin-orange);
    text-decoration: none;
}

.contact-info a:hover { text-decoration: underline; }

/* Simple text page */
.text-page {
    max-width: 800px;
    margin: 0 auto;
    padding: 48px 20px;
}

.text-page h1 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text-dark);
}

.text-page h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 32px 0 16px;
    color: var(--polin-orange);
}

.text-page h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin: 24px 0 12px;
    color: var(--text-dark);
}

.text-page p {
    color: var(--text-medium);
    margin-bottom: 16px;
    line-height: 1.7;
}

.text-page ul,
.text-page ol {
    margin: 16px 0;
    padding-left: 24px;
    color: var(--text-medium);
}

.text-page li {
    margin-bottom: 8px;
}

/* Image gallery */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 20px;
    margin: 32px 0;
}

.gallery-item {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    background: var(--bg-white);
}

.gallery-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

.gallery-caption {
    padding: 14px 16px;
    font-size: 0.85rem;
    color: var(--text-medium);
    text-align: center;
}

/* Awards / Timeline */
.awards-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
    margin: 32px 0;
}

.award-item {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    text-align: center;
}

.award-item h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--polin-orange);
}

.award-item p {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* Footer */
.site-footer {
    background: var(--text-dark);
    color: rgba(255,255,255,0.7);
    padding: 60px 0 0;
    margin-top: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h4 {
    color: var(--bg-white);
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 18px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 8px;
}

.footer-col a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    font-size: 0.85rem;
    transition: var(--transition);
}

.footer-col a:hover {
    color: var(--polin-orange);
}

.footer-col p {
    font-size: 0.85rem;
    line-height: 1.6;
}

.contact-list li,
.legal-list li {
    font-size: 0.85rem;
    margin-bottom: 6px;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 20px 0;
    text-align: center;
    font-size: 0.8rem;
    color: rgba(255,255,255,0.5);
}

/* Responsive */
@media (max-width: 1024px) {
    .mobile-toggle { display: flex; }
    
    .main-nav {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--bg-white);
        padding: 20px;
        transform: translateX(100%);
        transition: var(--transition);
        overflow-y: auto;
        border-top: 1px solid var(--border);
    }
    
    .main-nav.open {
        transform: translateX(0);
    }
    
    .main-nav ul {
        flex-direction: column;
        gap: 4px;
    }
    
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        min-width: auto;
        padding: 0 0 0 16px;
        display: none;
    }
    
    .dropdown.open .dropdown-menu {
        display: flex;
    }
    
    .dropdown > a::after {
        content: '+';
        margin-left: 8px;
        font-size: 1.2rem;
    }
    
    .dropdown.open > a::after {
        content: '-';
    }
    
    .content-grid.two-col,
    .content-grid.three-col,
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-block {
        grid-template-columns: 1fr;
    }
    
    .contact-layout {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
    
    .page-hero h1 {
        font-size: 2rem;
    }
}

@media (max-width: 640px) {
    .header-inner { height: 64px; }
    .logo img { height: 36px; }
    .logo-text { font-size: 1rem; }
    .logo-text small { font-size: 0.6rem; }
    
    .page-hero {
        padding: 48px 0 40px;
    }
    
    .page-hero h1 {
        font-size: 1.6rem;
    }
    
    .section-header h2 {
        font-size: 1.5rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .content-grid {
        grid-template-columns: 1fr;
    }
}

/* Utility */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-1 { margin-top: 8px; }
.mb-1 { margin-bottom: 8px; }
.mt-2 { margin-top: 16px; }
.mb-2 { margin-bottom: 16px; }
.mt-3 { margin-top: 24px; }
.mb-3 { margin-bottom: 24px; }
.mt-4 { margin-top: 32px; }
.mb-4 { margin-bottom: 32px; }

/* ===== CAROUSEL ===== */
.carousel {
    position: relative;
    max-width: 100%;
    margin: 32px 0;
    overflow: hidden;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.carousel-track {
    display: flex;
    transition: transform 0.5s ease;
}

.carousel-slide {
    min-width: 100%;
    position: relative;
}

.carousel-slide img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    display: block;
    cursor: pointer;
}

.carousel-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: linear-gradient(transparent, rgba(0,0,0,0.7));
    color: white;
    font-size: 1rem;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.9);
    border: none;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    z-index: 10;
}

.carousel-btn:hover {
    background: var(--polin-orange);
    color: white;
}

.carousel-btn.prev { left: 16px; }
.carousel-btn.next { right: 16px; }

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 16px;
}

.carousel-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--border);
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.carousel-dot.active {
    background: var(--polin-orange);
}

/* ===== LIGHTBOX ===== */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.95);
    z-index: 9999;
    justify-content: center;
    align-items: center;
}

.lightbox.open {
    display: flex;
}

.lightbox img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    border-radius: var(--radius);
}

.lightbox-close {
    position: absolute;
    top: 24px;
    right: 24px;
    width: 48px;
    height: 48px;
    background: rgba(255,255,255,0.2);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-close:hover {
    background: var(--polin-orange);
}

/* Hero image banner */
.hero-banner-img {
    width: 100%;
    max-height: 500px;
    object-fit: cover;
    border-radius: var(--radius);
    margin-top: 24px;
}

/* Stats infographic image */
.stats-infographic-img {
    width: 100%;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin: 24px 0;
}

/* Photo grid for product pages */
.photo-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin: 32px 0;
}

.photo-grid img {
    width: 100%;
    height: 280px;
    object-fit: cover;
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
}

.photo-grid img:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-hover);
}

@media (max-width: 640px) {
    .carousel-slide img { height: 280px; }
    .photo-grid { grid-template-columns: 1fr; }
    .carousel-btn { width: 36px; height: 36px; font-size: 1rem; }
}