@import url("https://fonts.googleapis.com/css2?family=Bricolage+Grotesque:opsz,wght@12..96,400;12..96,500;12..96,600;12..96,700&family=Source+Sans+3:wght@400;500;600&display=swap");

:root {
    --bg: #f6f8fc;
    --surface: #ffffff;
    --surface-muted: #f9fbff;
    --surface-soft: #f2f5fb;
    --text: #111827;
    --text-muted: #64748b;
    --text-soft: #94a3b8;
    --border: #e2e8f0;
    --border-strong: #cbd5e1;
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --primary-soft: rgba(79, 70, 229, 0.1);
    --primary-deep: #312e81;
    --radius-lg: 18px;
    --radius-md: 12px;
    --radius-sm: 10px;
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
    --shadow-md: 0 8px 30px rgba(15, 23, 42, 0.08);
    --font-display: "Bricolage Grotesque", Georgia, serif;
    --font-body: "Source Sans 3", "Segoe UI", sans-serif;
    --max: 1120px;
    --nav-h: 72px;
}

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

html {
    scroll-behavior: smooth;
}

body.landing {
    font-family: var(--font-body);
    color: var(--text);
    line-height: 1.55;
    background:
        radial-gradient(circle at 18% 0%, #e8edff 0%, rgba(232, 237, 255, 0) 42%),
        var(--bg);
    min-height: 100vh;
}

.landing a {
    color: inherit;
    text-decoration: none;
}

.landing a.landing-btn-primary,
.landing a.landing-nav-cta {
    color: #fff;
}

.landing-nav {
    position: sticky;
    top: 0;
    z-index: 50;
    height: var(--nav-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 clamp(20px, 4vw, 48px);
    background: rgba(246, 248, 252, 0.82);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
}

.landing-brand {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--text);
}

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

.landing-nav-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 18px;
    border-radius: var(--radius-sm);
    background: var(--primary);
    color: #fff;
    font-size: 0.92rem;
    font-weight: 600;
    transition: background 0.2s ease, transform 0.2s ease;
}

.landing-nav-cta:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

.landing-wrap {
    width: min(var(--max), calc(100% - 40px));
    margin: 0 auto;
}

.landing-hero {
    padding: clamp(56px, 10vw, 104px) 0 clamp(72px, 12vw, 120px);
}

.landing-hero-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: clamp(32px, 6vw, 72px);
    align-items: end;
}

.landing-kicker {
    display: inline-block;
    margin-bottom: 20px;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--primary);
}

.landing-hero h1 {
    font-family: var(--font-display);
    font-size: clamp(2.4rem, 5.4vw, 4.1rem);
    font-weight: 700;
    line-height: 1.04;
    letter-spacing: -0.04em;
    max-width: 11ch;
}

.landing-hero-aside {
    padding: 28px 0 8px;
    border-top: 1px solid var(--border);
}

.landing-hero-aside p {
    font-size: 1.08rem;
    color: var(--text-muted);
    max-width: 34ch;
}

.landing-hero-cta {
    margin-top: 36px;
}

.landing-btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 24px;
    border-radius: var(--radius-sm);
    background: var(--primary);
    color: #fff;
    font-size: 0.98rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
}

.landing-btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

.landing-section {
    padding: clamp(56px, 8vw, 96px) 0;
}

.landing-section + .landing-section {
    border-top: 1px solid var(--border);
}

.landing-section-label {
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-soft);
    margin-bottom: 14px;
}

.landing-section h2 {
    font-family: var(--font-display);
    font-size: clamp(1.7rem, 3.2vw, 2.5rem);
    font-weight: 600;
    letter-spacing: -0.03em;
    line-height: 1.12;
    margin-bottom: 22px;
    max-width: 18ch;
}

.landing-section-lead {
    font-size: 1.08rem;
    color: var(--text-muted);
    max-width: 58ch;
}

.landing-audience {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: clamp(28px, 5vw, 64px);
    margin-top: 40px;
    align-items: start;
}

.landing-audience-highlight {
    background: linear-gradient(135deg, #4f46e5 0%, #6366f1 100%);
    color: #fff;
    border-radius: var(--radius-lg);
    padding: clamp(28px, 4vw, 40px);
    box-shadow: var(--shadow-md);
}

.landing-audience-highlight h3 {
    font-family: var(--font-display);
    font-size: clamp(1.35rem, 2.4vw, 1.85rem);
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}

.landing-audience-highlight p {
    color: rgba(255, 255, 255, 0.88);
    font-size: 1rem;
}

.landing-list {
    list-style: none;
    display: grid;
    gap: 18px;
}

.landing-list li {
    position: relative;
    padding-left: 22px;
    font-size: 1.02rem;
    color: var(--text);
}

.landing-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.62em;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primary);
}

.landing-note {
    margin-top: 28px;
    padding-top: 22px;
    border-top: 1px solid var(--border);
    font-size: 1rem;
    color: var(--text-muted);
}

.landing-note strong {
    color: var(--text);
    font-weight: 600;
}

.landing-contrast {
    margin-top: 44px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--surface);
    box-shadow: var(--shadow-sm);
}

.landing-contrast-col {
    padding: clamp(24px, 4vw, 36px);
}

.landing-contrast-col + .landing-contrast-col {
    border-left: 1px solid var(--border);
    background: var(--surface-muted);
}

.landing-contrast-col h3 {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 18px;
    letter-spacing: -0.02em;
}

.landing-contrast-col.muted h3 {
    color: var(--text-muted);
}

.landing-contrast-col.accent h3 {
    color: var(--primary-deep);
}

.landing-contrast-col ul {
    list-style: none;
    display: grid;
    gap: 12px;
}

.landing-contrast-col li {
    font-size: 0.98rem;
    color: var(--text-muted);
    padding-left: 0;
}

.landing-contrast-col.accent li {
    color: var(--text);
}

.landing-quote {
    margin-top: 36px;
    max-width: 52ch;
}

.landing-quote blockquote {
    font-family: var(--font-display);
    font-size: clamp(1.25rem, 2.2vw, 1.65rem);
    font-weight: 500;
    letter-spacing: -0.02em;
    line-height: 1.25;
    color: var(--primary-deep);
}

.landing-quote cite {
    display: block;
    margin-top: 12px;
    font-family: var(--font-body);
    font-style: normal;
    font-size: 0.95rem;
    color: var(--text-muted);
}

.landing-connect {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: clamp(28px, 5vw, 56px);
    margin-top: 36px;
    align-items: start;
}

.landing-connect-panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: clamp(24px, 4vw, 34px);
    box-shadow: var(--shadow-sm);
}

.landing-connect-panel h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.landing-steps {
    counter-reset: step;
    list-style: none;
    display: grid;
    gap: 14px;
}

.landing-steps li {
    counter-increment: step;
    position: relative;
    padding: 14px 14px 14px 52px;
    background: var(--surface-soft);
    border-radius: var(--radius-md);
    font-size: 0.98rem;
    color: var(--text);
}

.landing-steps li::before {
    content: counter(step);
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    width: 26px;
    height: 26px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: var(--primary-soft);
    color: var(--primary);
    font-size: 0.82rem;
    font-weight: 700;
}

.landing-security {
    margin-top: 8px;
}

.landing-security-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin-top: 32px;
}

.landing-security-item {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 22px 22px 20px;
}

.landing-security-item:nth-child(1) {
    grid-column: span 2;
    background: var(--surface-muted);
}

.landing-security-item h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text);
}

.landing-security-item p {
    font-size: 0.96rem;
    color: var(--text-muted);
}

.landing-final {
    padding: clamp(64px, 10vw, 112px) 0 clamp(80px, 12vw, 128px);
}

.landing-final-inner {
    text-align: center;
    padding: clamp(40px, 6vw, 64px) clamp(24px, 5vw, 48px);
    border-radius: calc(var(--radius-lg) + 4px);
    background:
        linear-gradient(180deg, rgba(79, 70, 229, 0.06) 0%, rgba(79, 70, 229, 0) 72%),
        var(--surface);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-md);
}

.landing-final-inner h2 {
    max-width: none;
    margin: 0 auto 14px;
    font-size: clamp(1.8rem, 3.6vw, 2.7rem);
}

.landing-final-inner p {
    color: var(--text-muted);
    margin-bottom: 28px;
    font-size: 1.02rem;
}

.landing-footer {
    padding: 24px 0 36px;
    border-top: 1px solid var(--border);
    color: var(--text-soft);
    font-size: 0.88rem;
    text-align: center;
}

@media (max-width: 900px) {
    .landing-hero-grid,
    .landing-audience,
    .landing-connect,
    .landing-contrast {
        grid-template-columns: 1fr;
    }

    .landing-contrast-col + .landing-contrast-col {
        border-left: none;
        border-top: 1px solid var(--border);
    }

    .landing-security-grid {
        grid-template-columns: 1fr;
    }

    .landing-security-item:nth-child(1) {
        grid-column: span 1;
    }

    .landing-hero h1 {
        max-width: none;
    }
}

@media (max-width: 600px) {
    .landing-nav-cta span {
        display: none;
    }

    .landing-nav-cta::after {
        content: "Анализ";
    }
}