:root {
    --vk-primary: #2C6E86;
    --vk-primary-light: #6FA8B9;
    --vk-dark: #263238;
    --vk-bg: #FFFFFF;
    --vk-bg-soft: #F4F8F9;
    --vk-border: #E4E9EB;
    --vk-text: #263238;
    --vk-text-muted: #5F6B70;
    --radius: 8px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: var(--vk-text);
    background: var(--vk-bg);
    line-height: 1.6;
}

.container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.site-header {
    border-bottom: 1px solid var(--vk-border);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 24px;
}
.brand {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--vk-text);
}
.brand-badge {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    background: var(--vk-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 600;
}
.brand-name {
    font-size: 15px;
    font-weight: 600;
}
.main-nav a {
    margin-left: 20px;
    font-size: 14px;
    color: var(--vk-text-muted);
    text-decoration: none;
}
.main-nav a:hover,
.main-nav a.active {
    color: var(--vk-primary);
}

/* Hero */
.hero {
    background: var(--vk-bg-soft);
    text-align: center;
    padding: 64px 24px;
}
.hero .eyebrow {
    font-size: 12px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--vk-primary-light);
    font-weight: 600;
    margin-bottom: 8px;
}
.hero h1 {
    font-size: 32px;
    max-width: 560px;
    margin: 0 auto 12px;
}
.hero p {
    max-width: 480px;
    margin: 0 auto 24px;
    color: var(--vk-text-muted);
}

.btn {
    display: inline-block;
    border-radius: var(--radius);
    padding: 12px 26px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid transparent;
}
.btn-primary {
    background: var(--vk-primary);
    color: #fff;
}
.btn-primary:hover {
    background: #235870;
}

/* Grids and cards */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    padding: 48px 0;
}
.card {
    background: #fff;
    border: 1px solid var(--vk-border);
    border-radius: 12px;
    padding: 24px;
    text-decoration: none;
    color: inherit;
}
.card h3 {
    margin-top: 0;
    color: var(--vk-primary);
}
.realisation-card img {
    width: 100%;
    border-radius: 8px;
    margin-bottom: 12px;
}

.page-header {
    padding: 40px 24px 0;
}
.page-header h1 {
    font-size: 26px;
}

.service-block {
    display: flex;
    gap: 24px;
    align-items: flex-start;
    padding: 32px 0;
    border-bottom: 1px solid var(--vk-border);
}
.service-block img {
    width: 220px;
    border-radius: 8px;
    flex-shrink: 0;
}

.apropos-content {
    padding: 24px 0 64px;
    max-width: 720px;
    margin: 0 auto;
}

/* Contact */
.contact-section {
    padding: 24px 0 64px;
}
.contact-form {
    max-width: 480px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.contact-form label {
    font-size: 13px;
    font-weight: 600;
    margin-top: 12px;
}
.contact-form input,
.contact-form textarea {
    padding: 10px 12px;
    border: 1px solid var(--vk-border);
    border-radius: var(--radius);
    font-size: 14px;
    font-family: inherit;
}
.contact-form button {
    margin-top: 20px;
    align-self: flex-start;
    cursor: pointer;
}
.field-hidden {
    position: absolute;
    left: -9999px;
}
.alert {
    padding: 14px 18px;
    border-radius: var(--radius);
    font-size: 14px;
}
.alert-success {
    background: #E1F5EE;
    color: #085041;
}
.alert-error {
    background: #FAECE7;
    color: #712B13;
}

/* Footer */
.site-footer {
    border-top: 1px solid var(--vk-border);
    padding: 24px;
    margin-top: 40px;
}
.site-footer .container {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    color: var(--vk-text-muted);
}
.site-footer a {
    color: var(--vk-text-muted);
}