:root {
    --obzlib-ink: #202124;
    --obzlib-muted: #5b6470;
    --obzlib-line: #d7dde5;
    --obzlib-panel: #f7f9fb;
    --obzlib-accent: #176b87;
    --obzlib-accent-dark: #0f4659;
    --obzlib-code-bg: #18212b;
    --obzlib-code-fg: #edf4f8;
}

body {
    background: #e7ebef;
    color: var(--obzlib-ink);
}

.obzlib-main {
    width: min(1040px, calc(100% - 32px));
    margin: 0 auto;
    background: #ffffff;
    min-height: 100vh;
    box-shadow: 0 0 32px rgba(0, 0, 0, 0.22);
}

.obzlib-hero,
.obzlib-section {
    padding: 56px clamp(22px, 6vw, 72px);
}

.obzlib-hero {
    border-bottom: 1px solid var(--obzlib-line);
    background:
        linear-gradient(135deg, rgba(23, 107, 135, 0.13), rgba(255, 255, 255, 0) 48%),
        #ffffff;
}

.obzlib-kicker {
    margin: 0 0 14px;
    color: var(--obzlib-accent-dark);
    font: 600 0.86rem/1.4 'Poppins', Verdana, sans-serif;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.obzlib-title {
    max-width: 760px;
    margin: 0;
    font: 700 clamp(1.85rem, 6vw, 4rem)/1.05 'Raleway', Verdana, sans-serif;
    letter-spacing: 0;
    overflow-wrap: normal;
}

.obzlib-subtitle {
    max-width: 710px;
    margin: 24px 0 0;
    color: var(--obzlib-muted);
    font: 400 1.12rem/1.75 'Poppins', Verdana, sans-serif;
}

.obzlib-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 30px;
}

.obzlib-button,
.obzlib-secondary-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 18px;
    border-radius: 6px;
    font: 600 0.96rem/1 'Poppins', Verdana, sans-serif;
    text-align: center;
}

.obzlib-button {
    background: var(--obzlib-accent);
    color: #ffffff;
}

.obzlib-secondary-link {
    border: 1px solid var(--obzlib-line);
    color: var(--obzlib-accent-dark);
    background: #ffffff;
}

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

.obzlib-section h2 {
    margin: 0 0 18px;
    font: 700 2rem/1.15 'Raleway', Verdana, sans-serif;
}

.obzlib-section h3 {
    margin: 0 0 10px;
    font: 700 1.25rem/1.25 'Raleway', Verdana, sans-serif;
    overflow-wrap: anywhere;
}

.obzlib-section p,
.obzlib-section li {
    color: var(--obzlib-muted);
    font: 400 1rem/1.75 'Poppins', Verdana, sans-serif;
}

.obzlib-section p {
    max-width: 760px;
}

.obzlib-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    margin-top: 28px;
}

.obzlib-card {
    border: 1px solid var(--obzlib-line);
    border-radius: 8px;
    padding: 20px;
    background: var(--obzlib-panel);
}

.obzlib-card a {
    color: var(--obzlib-accent-dark);
}

.obzlib-card p {
    margin-bottom: 0;
}

.obzlib-code {
    overflow-x: auto;
    margin: 24px 0;
    padding: 20px;
    border-radius: 8px;
    background: var(--obzlib-code-bg);
    color: var(--obzlib-code-fg);
    font: 400 0.92rem/1.6 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.obzlib-code code {
    font: inherit;
}

.obzlib-code[class*="language-"],
.obzlib-code code[class*="language-"] {
    background: var(--obzlib-code-bg);
    color: var(--obzlib-code-fg);
    text-shadow: none;
}

.obzlib-nav-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 24px;
}

.obzlib-nav-list a {
    color: var(--obzlib-accent-dark);
    border-bottom: 1px solid currentColor;
    font: 600 0.95rem/1.3 'Poppins', Verdana, sans-serif;
}

@media (max-width: 720px) {
    .obzlib-main {
        width: 100%;
        box-shadow: none;
    }

    .obzlib-hero,
    .obzlib-section {
        padding: 40px 20px;
    }

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

    .obzlib-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .obzlib-button,
    .obzlib-secondary-link {
        justify-content: center;
    }

    .obzlib-title {
        overflow-wrap: normal;
    }
}