:root {
    --bg: #f4f7fb;
    --card: #ffffff;
    --text: #111827;
    --muted: #607086;
    --line: #dbe3ef;
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --dark: #111827;
    --dark-2: #182235;
    --radius: 24px;
    --shadow: 0 20px 60px rgba(15, 23, 42, .10);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

a {
    color: inherit;
}

.container {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(255, 255, 255, .92);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
}

.topbar-inner {
    min-height: 76px;
    display: flex;
    align-items: center;
    gap: 24px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    min-width: 210px;
}

.brand-mark {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    border-radius: 14px;
    background: var(--dark);
    color: #fff;
    font-weight: 800;
}

.brand strong {
    display: block;
    font-size: 18px;
    line-height: 1.1;
}

.brand small {
    display: block;
    color: var(--muted);
    font-size: 13px;
}

.nav {
    display: flex;
    gap: 18px;
    margin-left: auto;
}

.nav a {
    color: var(--muted);
    text-decoration: none;
    font-weight: 600;
}

.nav a:hover {
    color: var(--text);
}

.crm-btn,
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0 20px;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 800;
    border: 1px solid transparent;
}

.crm-btn,
.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 12px 26px rgba(37, 99, 235, .28);
}

.crm-btn:hover,
.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-secondary {
    background: #fff;
    border-color: var(--line);
    color: var(--text);
}

.hero {
    padding: 72px 0 46px;
    background:
        radial-gradient(circle at top left, rgba(37, 99, 235, .16), transparent 34%),
        radial-gradient(circle at top right, rgba(16, 185, 129, .14), transparent 32%);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.4fr .8fr;
    gap: 28px;
    align-items: stretch;
}

.eyebrow {
    display: inline-flex;
    width: fit-content;
    margin-bottom: 14px;
    padding: 7px 12px;
    border-radius: 999px;
    background: rgba(37, 99, 235, .10);
    color: var(--primary-dark);
    font-weight: 800;
    font-size: 13px;
    letter-spacing: .02em;
    text-transform: uppercase;
}

.hero h1 {
    margin: 0;
    max-width: 780px;
    font-size: clamp(36px, 5vw, 64px);
    line-height: .98;
    letter-spacing: -0.05em;
}

.hero p {
    max-width: 760px;
    margin: 22px 0 0;
    color: var(--muted);
    font-size: 19px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
}

.hero-card {
    background: var(--dark);
    color: #fff;
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow);
}

.hero-card h2 {
    margin: 0 0 16px;
    font-size: 24px;
}

.hero-card ul {
    margin: 0;
    padding-left: 20px;
    color: rgba(255,255,255,.82);
}

.hero-card li + li {
    margin-top: 10px;
}

.section {
    padding: 66px 0;
}

.section-soft {
    background: #eaf1fb;
}

.section-dark {
    background: var(--dark);
    color: #fff;
}

.section-head {
    max-width: 760px;
    margin-bottom: 28px;
}

.section-head h2 {
    margin: 0;
    font-size: clamp(30px, 4vw, 46px);
    letter-spacing: -0.04em;
    line-height: 1.04;
}

.section-head p {
    margin: 12px 0 0;
    color: var(--muted);
    font-size: 18px;
}

.section-dark .section-head p,
.section-dark p {
    color: rgba(255,255,255,.72);
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}

.project-card,
.rule-card,
.quick-link,
.contact-card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: 0 10px 30px rgba(15, 23, 42, .06);
}

.project-card {
    min-height: 360px;
    display: flex;
    flex-direction: column;
}

.project-card-accent {
    border-color: rgba(37, 99, 235, .28);
    background: linear-gradient(180deg, #ffffff, #eef5ff);
}

.project-card-dark {
    background: linear-gradient(180deg, var(--dark-2), var(--dark));
    color: #fff;
    border-color: rgba(255,255,255,.10);
}

.project-icon {
    width: 54px;
    height: 54px;
    display: grid;
    place-items: center;
    border-radius: 18px;
    background: #eef4ff;
    font-size: 28px;
    margin-bottom: 18px;
}

.project-card-dark .project-icon {
    background: rgba(255,255,255,.10);
}

.project-card h3 {
    margin: 0;
    font-size: 24px;
    letter-spacing: -0.02em;
}

.project-card p {
    color: var(--muted);
    margin: 12px 0 16px;
}

.project-card-dark p {
    color: rgba(255,255,255,.78);
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: auto;
    padding-top: 12px;
}

.tags span {
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(37, 99, 235, .10);
    color: var(--primary-dark);
    font-size: 12px;
    font-weight: 800;
}

.project-card-dark .tags span {
    background: rgba(255,255,255,.12);
    color: #fff;
}

.card-link {
    margin-top: 18px;
    color: var(--primary-dark);
    font-weight: 900;
    text-decoration: none;
}

.project-card-dark .card-link {
    color: #93c5fd;
}

.rules-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}

.rule-card strong {
    font-size: 18px;
}

.rule-card p {
    margin: 10px 0 0;
    color: var(--muted);
}

.rule-card.warning {
    border-color: rgba(245, 158, 11, .45);
    background: #fff8eb;
}

.links-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.quick-link {
    display: block;
    text-decoration: none;
    transition: transform .16s ease, box-shadow .16s ease;
}

.quick-link:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.quick-link span {
    display: block;
    color: var(--muted);
    font-weight: 800;
    margin-bottom: 4px;
}

.quick-link strong {
    display: block;
    overflow-wrap: anywhere;
}

.main-link {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.main-link span {
    color: rgba(255,255,255,.78);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    align-items: start;
}

.contact-grid h2 {
    margin: 0;
    font-size: clamp(30px, 4vw, 46px);
    letter-spacing: -0.04em;
    line-height: 1.04;
}

.contact-cards {
    display: grid;
    gap: 14px;
}

.contact-card {
    background: rgba(255,255,255,.08);
    border-color: rgba(255,255,255,.12);
}

.contact-card strong,
.contact-card a {
    display: block;
}

.contact-card strong {
    font-size: 20px;
    margin-bottom: 10px;
}

.contact-card a {
    color: #bfdbfe;
    text-decoration: none;
    font-weight: 800;
    margin-top: 7px;
}

.footer {
    background: #0b1220;
    color: rgba(255,255,255,.72);
    padding: 24px 0;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    gap: 18px;
}

.footer a {
    color: #fff;
    font-weight: 800;
    text-decoration: none;
}

@media (max-width: 980px) {
    .topbar-inner {
        flex-wrap: wrap;
        padding: 12px 0;
    }

    .nav {
        order: 3;
        width: 100%;
        margin-left: 0;
        overflow-x: auto;
        padding-bottom: 4px;
    }

    .crm-btn {
        margin-left: auto;
    }

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

    .project-grid,
    .rules-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .links-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 640px) {
    .container {
        width: min(100% - 22px, 1180px);
    }

    .topbar-inner {
        gap: 12px;
    }

    .brand {
        min-width: 0;
    }

    .crm-btn {
        width: 100%;
    }

    .hero {
        padding-top: 42px;
    }

    .hero-card,
    .project-card,
    .rule-card,
    .quick-link,
    .contact-card {
        border-radius: 18px;
        padding: 20px;
    }

    .project-grid,
    .rules-grid,
    .links-grid {
        grid-template-columns: 1fr;
    }

    .footer-inner {
        flex-direction: column;
    }
}