@import url("https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;700&display=swap");

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

:root {
    --neutral-0:   #FFFFFF;
    --neutral-100: #F7F7F7;
    --neutral-200: #E1E1E1;
    --neutral-250: #BDBDBD;
    --neutral-300: #757575;
    --neutral-400: #424242;
    --neutral-500: #2A2A2A;
    --tq-400:      #00A099;
    --tq-500:      #00877E;
    --tq-600:      #006B63;
    --brand:       #863bff;
}

html { font-size: 16px; }

body {
    font-family: "DM Sans", system-ui, sans-serif;
    font-weight: 500;
    background: var(--neutral-100);
    color: var(--neutral-500);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

/* ── Header ─────────────────────────────── */

.lk-header {
    background: var(--neutral-0);
    border-bottom: 1px solid var(--neutral-200);
    padding: 0 1.5rem;
    height: 60px;
    display: flex;
    align-items: center;
}

.lk-logo {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    text-decoration: none;
    color: var(--neutral-500);
}

.lk-logo img {
    width: 28px;
    height: 28px;
    display: block;
}

.lk-logo-name {
    font-size: 1.125rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

/* ── Main content ────────────────────────── */

.lk-main {
    padding: 3rem 1.5rem 4rem;
}

.lk-container {
    max-width: 720px;
    margin: 0 auto;
}

/* ── Document header ─────────────────────── */

.lk-doc-title {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.2;
    color: var(--neutral-500);
    margin-bottom: 0.5rem;
}

.lk-doc-date {
    font-size: 0.875rem;
    color: var(--neutral-300);
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--neutral-200);
}

.lk-doc-intro {
    font-size: 1rem;
    color: var(--neutral-400);
    margin-bottom: 2.5rem;
    line-height: 1.75;
}

/* ── Sections ────────────────────────────── */

.lk-section {
    margin-bottom: 2.5rem;
}

.lk-section-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--neutral-500);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--neutral-200);
}

.lk-subsection-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--neutral-500);
    margin-top: 1.25rem;
    margin-bottom: 0.5rem;
}

/* ── Typography ──────────────────────────── */

.lk-section p,
.lk-doc-intro {
    margin-bottom: 1rem;
    font-size: 0.9375rem;
    color: var(--neutral-500);
    line-height: 1.75;
}

.lk-section p:last-child { margin-bottom: 0; }

.lk-section ul,
.lk-section ol {
    margin: 0.75rem 0 1rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.lk-section li {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--neutral-500);
}

.lk-section strong { font-weight: 700; }

.lk-section a {
    color: var(--tq-500);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 2px;
}

.lk-section a:hover { color: var(--tq-400); }

/* ── Footer ──────────────────────────────── */

.lk-footer {
    background: var(--neutral-0);
    border-top: 1px solid var(--neutral-200);
    padding: 1.75rem 1.5rem;
}

.lk-footer-inner {
    max-width: 720px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0.875rem;
    align-items: flex-start;
}

.lk-footer-copy {
    font-size: 0.8125rem;
    color: var(--neutral-300);
}

.lk-footer-copy a {
    color: var(--tq-500);
    text-decoration: none;
}

.lk-footer-copy a:hover { text-decoration: underline; }

.lk-footer-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem 1.25rem;
}

.lk-footer-nav a {
    font-size: 0.8125rem;
    color: var(--neutral-300);
    text-decoration: none;
}

.lk-footer-nav a:hover {
    color: var(--neutral-500);
    text-decoration: underline;
}

/* ── Responsive ──────────────────────────── */

@media (max-width: 480px) {
    .lk-doc-title { font-size: 1.5rem; }
    .lk-main { padding: 2rem 1rem 3rem; }
    .lk-header { padding: 0 1rem; }
    .lk-footer { padding: 1.5rem 1rem; }
}