:root {
    --rc-primary: #336fee;
    --rc-primary-strong: #2457cf;
    --rc-primary-soft: #e8f2fe;
    --rc-bg: #f5f5f7;
    --rc-bg-alt: #eef2f6;
    --rc-surface: #ffffff;
    --rc-border: #dfe3ea;
    --rc-text: #1f2937;
    --rc-muted: #6b7280;
    --rc-shadow: 0 18px 40px rgba(31, 41, 55, 0.08);
    --rc-radius: 20px;
    --rc-radius-sm: 14px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 40px 20px 64px;
    font-family: "SF Pro Display", "SF Pro Text", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.65;
    color: var(--rc-text);
    background:
        radial-gradient(circle at top left, rgba(51, 111, 238, 0.12), transparent 24rem),
        linear-gradient(180deg, #f8fbff 0%, var(--rc-bg) 38%, var(--rc-bg-alt) 100%);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    font-feature-settings: "kern" 1, "liga" 1, "calt" 1;
}

body > * {
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
}

.doc-shell {
    max-width: 1180px;
    margin: 0 auto;
}

.doc-card {
    max-width: none !important;
    margin: 0 0 24px !important;
    padding: 28px !important;
    background: var(--rc-surface) !important;
    border: 1px solid rgba(51, 111, 238, 0.12) !important;
    border-radius: var(--rc-radius) !important;
    box-shadow: var(--rc-shadow);
}

.doc-heading-accent {
    color: var(--rc-primary) !important;
}

h1,
h2,
h3,
h4 {
    color: var(--rc-text);
    letter-spacing: -0.025em;
}

h1 {
    margin: 0 0 20px;
    font-size: 2rem;
    font-weight: 700;
}

h2 {
    margin: 0 0 14px;
    font-size: 1.55rem;
    font-weight: 700;
    line-height: 1.25;
}

h3 {
    margin-top: 24px;
    margin-bottom: 12px;
    padding-bottom: 8px;
    font-size: 1.1rem;
    font-weight: 650;
    border-bottom: 1px solid rgba(51, 111, 238, 0.12);
}

h4 {
    margin-top: 20px;
    margin-bottom: 10px;
    font-size: 1rem;
    font-weight: 600;
}

p,
ul,
ol,
li {
    letter-spacing: -0.012em;
}

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

a:hover {
    text-decoration: underline;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0 1.2rem;
    background: var(--rc-surface);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--rc-shadow);
}

th,
td {
    border: 1px solid rgba(51, 111, 238, 0.12);
    padding: 12px 14px;
    text-align: left;
    vertical-align: top;
}

th {
    background-color: var(--rc-primary-soft);
    color: #2349a7;
    font-weight: 600;
}

code {
    background-color: rgba(51, 111, 238, 0.08);
    color: var(--rc-primary-strong);
    padding: 2px 6px;
    border-radius: 8px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

pre {
    margin: 1rem 0 1.2rem;
    padding: 16px 18px;
    overflow-x: auto;
    background: #1e1e1e;
    border: 1px solid #2d2d30;
    border-radius: var(--rc-radius-sm);
    color: #d4d4d4;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

pre code {
    background: transparent;
    color: #d4d4d4;
    padding: 0;
    border-radius: 0;
}

.note {
    background-color: var(--rc-surface);
    padding: 16px 18px;
    border-left: 4px solid var(--rc-primary);
    border-radius: 16px;
    margin-bottom: 20px;
    box-shadow: var(--rc-shadow);
}

.dictionary {
    margin-bottom: 20px;
}

@media (max-width: 768px) {
    body {
        padding: 20px 12px 40px;
    }

    h1 {
        font-size: 1.6rem;
    }

    h2 {
        font-size: 1.25rem;
    }

    .doc-card {
        padding: 20px !important;
        border-radius: 16px !important;
    }
}