:root {
    --blue-900: #0f172a;
    --blue-800: #1e293b;
    --blue-700: #1a365d;
    --blue-600: #2563eb;
    --blue-500: #3b82f6;
    --blue-100: #dbeafe;
    --blue-50: #eff6ff;
    --gray-900: #111827;
    --gray-700: #374151;
    --gray-500: #6b7280;
    --gray-300: #d1d5db;
    --gray-100: #f3f4f6;
    --gray-50: #f9fafb;
    --white: #ffffff;
    --gold: #c7a056;
    --green: #16a34a;
    --radius: 12px;
    --shadow: 0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,.1), 0 4px 6px -4px rgba(0,0,0,.1);
    --transition: .2s ease;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--gray-900);
    line-height: 1.6;
    background: var(--white);
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 800; line-height: 1.15; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 700; line-height: 1.2; margin-bottom: 16px; }
h3 { font-size: 1.25rem; font-weight: 600; line-height: 1.3; }
h4 { font-size: 1rem; font-weight: 600; margin-bottom: 12px; }

.section-desc {
    color: var(--gray-500);
    font-size: 1.125rem;
    max-width: 640px;
    margin-bottom: 48px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--blue-600);
    color: var(--white);
}
.btn-primary:hover { background: #1d4ed8; transform: translateY(-1px); }

.btn-outline {
    background: transparent;
    color: var(--blue-600);
    border: 2px solid var(--blue-600);
}
.btn-outline:hover { background: var(--blue-50); }

.btn-nav {
    padding: 10px 20px;
    background: var(--blue-600);
    color: var(--white);
    border-radius: 8px;
}
.btn-nav:hover { background: #1d4ed8; }

.btn-portal {
    padding: 10px 20px;
    background: transparent;
    color: var(--blue-600);
    border: 2px solid var(--blue-600);
    border-radius: 8px;
    font-size: 0.9rem;
    transition: all 0.2s;
}
.btn-portal:hover {
    background: var(--blue-600);
    color: var(--white);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255,255,255,.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--gray-100);
    transition: var(--transition);
}
.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}
.header.scrolled { box-shadow: var(--shadow); }

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
}
.logo-icon {
    background: var(--blue-700);
    color: var(--white);
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 800;
}
.logo-text {
    font-size: 15px;
    letter-spacing: 0.08em;
    color: var(--blue-900);
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 28px;
}
.nav-list a {
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-700);
    transition: var(--transition);
}
.nav-list a:hover { color: var(--blue-600); }

.burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.burger span {
    width: 24px;
    height: 2px;
    background: var(--gray-900);
    border-radius: 2px;
    transition: var(--transition);
}

/* Hero */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, var(--blue-50) 0%, var(--white) 100%);
}
.hero-content { max-width: 720px; }
.hero-tag {
    display: inline-block;
    color: var(--blue-600);
    font-weight: 600;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 16px;
}
.hero-desc {
    color: var(--gray-500);
    font-size: 1.2rem;
    margin-top: 20px;
    max-width: 600px;
    line-height: 1.7;
}
.hero-actions {
    display: flex;
    gap: 16px;
    margin-top: 36px;
    flex-wrap: wrap;
}
.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 64px;
    padding-top: 48px;
    border-top: 1px solid var(--gray-300);
}
.stat-num {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--blue-700);
}
.stat-label {
    color: var(--gray-500);
    font-size: 14px;
}

/* About */
.about { padding: 96px 0; }
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    margin-top: 32px;
}
.about-text p {
    color: var(--gray-700);
    margin-bottom: 16px;
    line-height: 1.8;
}
.about-features { display: flex; flex-direction: column; gap: 24px; }
.feature {
    padding: 24px;
    border-radius: var(--radius);
    background: var(--gray-50);
    border: 1px solid var(--gray-100);
}
.feature-icon {
    font-size: 24px;
    margin-bottom: 12px;
}
.feature h3 { margin-bottom: 8px; }
.feature p { color: var(--gray-500); font-size: 14px; }

/* Services */
.services {
    padding: 96px 0;
    background: var(--gray-50);
}
.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.service-card {
    display: flex;
    flex-direction: column;
    padding: 28px;
    background: var(--white);
    border-radius: var(--radius);
    border: 1px solid var(--gray-100);
    transition: var(--transition);
    text-decoration: none;
    color: inherit;
}
.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--blue-500);
}
.service-icon { font-size: 28px; margin-bottom: 16px; }
.service-card h3 { margin-bottom: 12px; }
.service-card p {
    color: var(--gray-500);
    font-size: 14px;
    flex: 1;
    line-height: 1.6;
}
.service-link {
    display: inline-block;
    margin-top: 16px;
    color: var(--blue-600);
    font-weight: 500;
    font-size: 14px;
}

/* Portfolio */
.portfolio { padding: 96px 0; }
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.portfolio-card {
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--gray-100);
    transition: var(--transition);
}
.portfolio-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.portfolio-img {
    height: 220px;
    width: 100%;
}
.portfolio-info { padding: 24px; }
.portfolio-status {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 12px;
}
.status-done { background: #dcfce7; color: var(--green); }
.portfolio-info h3 { margin-bottom: 8px; }
.portfolio-info p { color: var(--gray-500); font-size: 14px; line-height: 1.6; }
.portfolio-info time { color: var(--gray-500); font-size: 13px; }

/* Partners */
.partners {
    padding: 96px 0;
    background: var(--gray-50);
}
.partners-grid {
    display: flex;
    gap: 32px;
    justify-content: center;
    flex-wrap: wrap;
}
.partner {
    display: block;
    padding: 24px 48px;
    background: var(--white);
    border-radius: var(--radius);
    border: 1px solid var(--gray-100);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--gray-700);
    text-decoration: none;
}
.partner-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 190px;
    min-height: 88px;
}
.partner-logo img {
    display: block;
    max-width: 150px;
    max-height: 48px;
    width: auto;
    height: auto;
    object-fit: contain;
}

/* SRO */
.sro { padding: 96px 0; }
.sro-card {
    max-width: 720px;
    margin: 0 auto;
    padding: 40px;
    border-radius: var(--radius);
    background: var(--blue-50);
    border: 1px solid var(--blue-100);
}
.sro-card h3 { margin-bottom: 16px; color: var(--blue-700); }
.sro-card > p { color: var(--gray-700); margin-bottom: 28px; line-height: 1.7; }
.sro-details { display: flex; flex-direction: column; gap: 12px; }
.sro-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--blue-100);
    font-size: 14px;
}
.sro-row span { color: var(--gray-500); }
.status-active { color: var(--green); }

/* Contact */
.contact {
    padding: 96px 0;
    background: var(--gray-50);
}
.contact-form {
    max-width: 640px;
    margin: 0 auto;
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.form-group {
    margin-bottom: 20px;
}
.form-group label {
    display: block;
    font-weight: 500;
    font-size: 14px;
    margin-bottom: 6px;
    color: var(--gray-700);
}
.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--gray-300);
    border-radius: 8px;
    font-family: inherit;
    font-size: 15px;
    transition: var(--transition);
    background: var(--white);
}
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--blue-500);
    box-shadow: 0 0 0 3px rgba(59,130,246,.15);
}
.form-consent {
    margin-bottom: 24px;
    font-size: 13px;
    color: var(--gray-500);
}
.form-consent input { margin-right: 8px; }

/* Footer */
.footer {
    background: var(--blue-900);
    color: var(--gray-300);
    padding: 64px 0 24px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}
.footer .logo { margin-bottom: 16px; }
.footer .logo-icon { background: var(--blue-600); }
.footer .logo-text { color: var(--white); }
.footer-col p { font-size: 14px; line-height: 1.7; }
.footer-col h4 { color: var(--white); }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul a { font-size: 14px; color: var(--gray-300); transition: var(--transition); }
.footer-col ul a:hover { color: var(--white); }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,.1);
    padding-top: 24px;
    text-align: center;
    font-size: 13px;
    color: var(--gray-500);
}

/* Service page specific */
.page-hero {
    padding: 130px 0 60px;
    background: linear-gradient(135deg, var(--blue-700) 0%, var(--blue-900) 100%);
    color: var(--white);
}
.page-hero h1 { color: var(--white); margin-bottom: 16px; }
.page-hero p { color: rgba(255,255,255,.8); font-size: 1.2rem; max-width: 640px; }

.breadcrumbs {
    padding: 16px 0;
    font-size: 13px;
    color: var(--gray-500);
}
.breadcrumbs a { color: var(--blue-600); }
.breadcrumbs span { margin: 0 8px; }

.service-content {
    padding: 64px 0;
}
.service-content h2 { margin-top: 48px; }
.service-content p {
    color: var(--gray-700);
    line-height: 1.8;
    margin-bottom: 16px;
    max-width: 800px;
}
.service-content ul {
    margin: 16px 0 24px 24px;
    list-style: disc;
}
.service-content ul li {
    color: var(--gray-700);
    margin-bottom: 8px;
    line-height: 1.6;
}

.service-content ol {
    margin: 16px 0 24px 24px;
    list-style: decimal;
}
.service-content ol li {
    color: var(--gray-700);
    margin-bottom: 10px;
    line-height: 1.65;
    padding-left: 4px;
}

.service-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 28px 0;
    font-size: 14px;
    max-width: 900px;
}
.service-content caption {
    text-align: left;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--gray-900);
}
.service-content th,
.service-content td {
    border: 1px solid var(--gray-300);
    padding: 12px 14px;
    text-align: left;
    vertical-align: top;
}
.service-content th {
    background: var(--gray-50);
    font-weight: 600;
    color: var(--gray-900);
}
.service-content tbody tr:nth-child(even) {
    background: var(--gray-50);
}

.service-content h3 {
    margin-top: 32px;
    margin-bottom: 12px;
}

.article-lead {
    font-size: 1.125rem;
    color: var(--gray-700);
    line-height: 1.75;
    margin-bottom: 32px;
    max-width: 800px;
}

.cta-block {
    padding: 64px;
    background: var(--blue-50);
    border-radius: var(--radius);
    text-align: center;
    margin: 64px 0;
}
.cta-block h2 { margin-bottom: 16px; }
.cta-block p { color: var(--gray-500); margin-bottom: 28px; }

/* Blog */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 32px;
}
.blog-card {
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--gray-100);
    transition: var(--transition);
}
.blog-card-link {
    display: block;
    color: inherit;
    text-decoration: none;
    height: 100%;
}
.blog-card-link:focus-visible {
    outline: 2px solid var(--blue-500);
    outline-offset: 2px;
}
.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.blog-card-img {
    height: 200px;
    background: var(--gray-100);
}
.blog-card-body {
    padding: 24px;
}
.blog-card-tag {
    display: inline-block;
    padding: 4px 10px;
    background: var(--blue-50);
    color: var(--blue-600);
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 12px;
}
.blog-card-body h3 { margin-bottom: 8px; font-size: 1.1rem; }
.blog-card-body p { color: var(--gray-500); font-size: 14px; line-height: 1.6; }
.blog-card-meta {
    margin-top: 16px;
    font-size: 13px;
    color: var(--gray-500);
}

/* Mobile */
@media (max-width: 1024px) {
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
    .nav-list {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--white);
        flex-direction: column;
        padding: 32px 24px;
        gap: 20px;
        transform: translateX(100%);
        transition: var(--transition);
    }
    .nav-list.open { transform: translateX(0); }
    .burger { display: flex; }

    .hero { padding: 110px 0 60px; }
    .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 40px; padding-top: 32px; }

    .about-grid { grid-template-columns: 1fr; gap: 32px; }
    .services-grid { grid-template-columns: 1fr; }
    .portfolio-grid { grid-template-columns: 1fr; }
    .blog-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }

    .partners-grid { gap: 16px; }
    .partner { padding: 16px 32px; font-size: 1rem; }

    .sro-card { padding: 24px; }
    .contact-form { padding: 24px; }
    .cta-block { padding: 32px; }
}