:root {
    --bg: #f6f7fb;
    --surface: #ffffff;
    --surface-soft: #eef2f7;
    --text: #182030;
    --muted: #546178;
    --primary: #1e3a8a;
    --primary-strong: #1b2f6b;
    --accent: #c6a46a;
    --border: #d7deea;
    --ok: #17653a;
    --danger: #8c1d18;
    --radius: 14px;
    --shadow: 0 10px 24px rgba(11, 23, 44, 0.09);
    --container: 1120px;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    font-family: "Inter", "Segoe UI", Roboto, Arial, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
}

body {
    overflow-x: hidden;
}

a {
    color: var(--primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

img {
    max-width: 100%;
    display: block;
}

.container {
    width: min(var(--container), 92vw);
    margin-inline: auto;
}

.topbar {
    background: var(--primary-strong);
    color: #fff;
    font-size: 0.95rem;
}

.topbar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    padding: 0.45rem 0;
}

.topbar-inner>* {
    min-width: 0;
}

.topbar a {
    color: #fff;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(6px);
}

.nav-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.2rem;
    padding: 0.9rem 0;
}

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
    letter-spacing: 0.2px;
}

.logo span {
    color: var(--primary);
}

.menu-toggle {
    display: none;
    border: 1px solid var(--border);
    background: var(--surface);
    border-radius: 10px;
    padding: 0.4rem 0.65rem;
    font-size: 1rem;
    cursor: pointer;
}

.nav {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav a {
    color: var(--text);
    font-weight: 500;
}

.nav a.active {
    color: var(--primary);
}

.nav a:focus-visible,
.btn:focus-visible,
.btn-outline:focus-visible,
.menu-toggle:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.btn,
.btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    border-radius: 10px;
    padding: 0.72rem 1rem;
    font-weight: 600;
    border: 1px solid transparent;
    text-decoration: none;
}

.btn {
    background: var(--primary);
    color: #fff;
}

.btn:hover {
    background: var(--primary-strong);
    text-decoration: none;
}

.btn-outline {
    border-color: var(--border);
    color: var(--text);
    background: var(--surface);
}

.btn-outline:hover {
    text-decoration: none;
    border-color: var(--primary);
}

.hero {
    padding: 4.5rem 0 3rem;
    background: linear-gradient(120deg, #f2f5fb 0%, #ffffff 65%);
}

.hero-grid {
    display: grid;
    gap: 1.8rem;
    grid-template-columns: 1.2fr 0.8fr;
}

.hero h1 {
    font-size: clamp(1.9rem, 2.2vw + 1rem, 3rem);
    line-height: 1.2;
    margin: 0 0 1rem;
}

.hero p {
    color: var(--muted);
    margin: 0 0 1.4rem;
}

.hero-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.2rem;
    box-shadow: var(--shadow);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
}

section {
    padding: 3rem 0;
}

.section-title {
    margin: 0 0 1rem;
    font-size: 1.65rem;
}

.section-intro {
    margin: 0 0 1.5rem;
    color: var(--muted);
    max-width: 72ch;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    box-shadow: var(--shadow);
}

.card h3 {
    margin-top: 0;
}

.card p {
    margin-bottom: 0;
    color: var(--muted);
    overflow-wrap: anywhere;
}

.band {
    background: var(--surface-soft);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.list-clean {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 0.7rem;
}

.list-clean li {
    padding: 0.75rem 0.9rem;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--surface);
}

.contact-box {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.2rem;
}

form {
    display: grid;
    gap: 0.9rem;
}

label {
    display: grid;
    gap: 0.35rem;
    font-weight: 600;
}

input,
textarea {
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 0.7rem 0.8rem;
    font: inherit;
    background: #fff;
}

textarea {
    min-height: 130px;
    resize: vertical;
}

.form-note {
    font-size: 0.92rem;
    color: var(--muted);
}

.alert {
    border-radius: 10px;
    padding: 0.7rem 0.8rem;
    font-weight: 600;
}

.alert-success {
    background: #e8f7ee;
    color: var(--ok);
    border: 1px solid #b8e4c8;
}

.alert-error {
    background: #fdecec;
    color: var(--danger);
    border: 1px solid #f6c2c0;
}

.footer {
    background: #0f1a33;
    color: #d9deea;
    padding: 2rem 0;
}

.footer a {
    color: #f2f5ff;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr;
    gap: 1rem;
}

.footer small {
    display: block;
    margin-top: 1rem;
    color: #b7c0d4;
}

.kicker {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 0.6rem;
}

.mt-sm {
    margin-top: 0.6rem;
}

@media (max-width: 950px) {

    .container {
        width: min(var(--container), 94vw);
    }

    .topbar {
        font-size: 0.88rem;
    }

    .topbar-inner {
        justify-content: flex-start;
        gap: 0.45rem 0.8rem;
        padding: 0.45rem 0;
    }

    .topbar-inner a {
        white-space: nowrap;
    }

    .nav-wrap {
        gap: 0.75rem;
        padding: 0.7rem 0;
        position: relative;
    }

    .logo {
        font-size: 1.08rem;
    }

    .hero-grid,
    .grid-3,
    .contact-box,
    .footer-grid {
        grid-template-columns: 1fr;
    }

    section {
        padding: 2.1rem 0;
    }

    .hero {
        padding: 2.3rem 0 1.9rem;
    }

    .hero h1 {
        font-size: clamp(1.55rem, 4.8vw + 0.5rem, 2rem);
        margin-bottom: 0.8rem;
    }

    .hero p,
    .section-intro {
        margin-bottom: 1rem;
    }

    .card,
    .hero-card {
        padding: 1rem;
    }

    .section-title {
        font-size: 1.35rem;
    }

    .menu-toggle {
        display: inline-flex;
    }

    .nav {
        position: absolute;
        right: 0;
        left: 0;
        top: calc(100% + 8px);
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: 12px;
        box-shadow: var(--shadow);
        padding: 0.65rem;
        flex-direction: column;
        align-items: stretch;
        max-height: min(68vh, 460px);
        overflow: auto;
        display: none;
        z-index: 30;
    }

    .nav a {
        display: block;
        padding: 0.55rem 0.6rem;
        border-radius: 8px;
    }

    .nav a:hover,
    .nav a.active {
        background: var(--surface-soft);
        text-decoration: none;
    }

    .btn,
    .btn-outline {
        width: 100%;
    }

    .nav.open {
        display: flex;
    }

    .footer {
        padding: 1.6rem 0;
    }
}

@media (max-width: 560px) {

    .topbar-inner span {
        width: 100%;
    }

    .kicker {
        font-size: 0.74rem;
    }

    .list-clean li {
        padding: 0.68rem 0.78rem;
    }
}