/* ============================================================
   base.css — tokens + layout compartilhado das páginas estáticas
   (landing usa estilos próprios; docs/termos/privacidade usam este)
   ============================================================ */
:root {
    --color-bg: #FFFFFF;
    --color-bg-secondary: #F6F8FB;
    --color-surface: #FFFFFF;
    --color-text: #0D1117;
    --color-text-secondary: #4A5568;
    --color-text-tertiary: #8B9CB0;
    --color-border: #D1D9E6;
    --color-border-light: #ECF0F5;
    --color-accent: #185FA5;
    --color-accent-light: #E6F1FB;
    --color-on-accent: #FFFFFF;
    --grad-accent: linear-gradient(135deg, #1F6FEB 0%, #0C447C 100%);
    --grad-text: linear-gradient(135deg, #2B8AF0 0%, #0C447C 100%);
    --glow-accent: 0 18px 40px -16px rgba(31,111,235,0.55);
    --shadow-sm: 0 1px 2px rgba(15,23,42,0.05);
    --shadow-md: 0 4px 16px -4px rgba(15,23,42,0.10);
    --radius: 14px;
    --radius-lg: 20px;
    --transition-theme: 0.25s ease;
}
html.dark {
    --color-bg: #0A0E14;
    --color-bg-secondary: #11161F;
    --color-surface: #11161F;
    --color-text: #F0F6FC;
    --color-text-secondary: #9DA7B3;
    --color-text-tertiary: #6E7681;
    --color-border: #2A3240;
    --color-border-light: #20262F;
    --color-accent: #58A6FF;
    --color-accent-light: #0D2137;
    --grad-accent: linear-gradient(135deg, #2B8AF0 0%, #1F6FEB 100%);
    --grad-text: linear-gradient(135deg, #8BC4FF 0%, #2B8AF0 100%);
    --glow-accent: 0 18px 40px -16px rgba(43,138,240,0.5);
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.4);
    --shadow-md: 0 4px 18px -4px rgba(0,0,0,0.5);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Inter', sans-serif;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    transition: background-color var(--transition-theme), color var(--transition-theme);
}
.mono { font-family: 'IBM Plex Mono', monospace; }
a { color: var(--color-accent); }
.lp { max-width: 1120px; margin: 0 auto; }

/* ---- NAV ---- */
nav {
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 24px; position: sticky; top: 0; z-index: 50;
    background: color-mix(in srgb, var(--color-bg) 80%, transparent);
    backdrop-filter: saturate(160%) blur(12px); -webkit-backdrop-filter: saturate(160%) blur(12px);
    border-bottom: 1px solid var(--color-border-light); flex-wrap: wrap; gap: 12px;
}
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.logo-mark {
    width: 30px; height: 30px; background: var(--grad-accent); border-radius: 9px;
    display: flex; align-items: center; justify-content: center; box-shadow: var(--glow-accent);
}
.logo-mark i { font-size: 15px; color: #fff; }
.logo-name { font-family: 'IBM Plex Mono', monospace; font-size: 15px; font-weight: 500; color: var(--color-text); letter-spacing: -0.3px; }
.nav-links { display: flex; gap: 24px; list-style: none; flex-wrap: wrap; }
.nav-links a { font-size: 13.5px; color: var(--color-text-secondary); text-decoration: none; font-weight: 400; }
.nav-links a:hover { color: var(--color-text); }
.nav-actions { display: flex; align-items: center; gap: 10px; }
.theme-toggle {
    background: var(--color-bg-secondary); border: 1px solid var(--color-border); color: var(--color-text);
    cursor: pointer; width: 38px; height: 38px; border-radius: 10px; font-size: 16px;
    display: flex; align-items: center; justify-content: center; line-height: 1;
}
.theme-toggle:hover { border-color: var(--color-accent); color: var(--color-accent); }
html .theme-toggle .icon-sun { display: none; }
html .theme-toggle .icon-moon { display: inline; }
html.dark .theme-toggle .icon-sun { display: inline; }
html.dark .theme-toggle .icon-moon { display: none; }
.nav-cta {
    background: var(--grad-accent); color: #fff; padding: 9px 18px; font-size: 13.5px; font-weight: 500;
    cursor: pointer; border: none; border-radius: 10px; text-decoration: none; white-space: nowrap;
    box-shadow: var(--glow-accent); display: inline-flex; align-items: center; gap: 6px;
}
.nav-cta:hover { filter: brightness(1.05); }

/* ---- DOC (prose) ---- */
.doc { max-width: 760px; margin: 0 auto; padding: 48px 24px 72px; }
.doc-eyebrow {
    font-family: 'IBM Plex Mono', monospace; font-size: 10px; letter-spacing: 2px;
    text-transform: uppercase; color: var(--color-accent); margin-bottom: 12px;
}
.doc h1 { font-size: clamp(28px, 4.5vw, 40px); font-weight: 300; letter-spacing: -1.5px; line-height: 1.1; margin-bottom: 10px; }
.doc h1 strong { font-weight: 600; }
.doc .lead { font-size: 15.5px; color: var(--color-text-secondary); line-height: 1.7; margin-bottom: 14px; }
.doc h2 { font-size: 21px; font-weight: 600; letter-spacing: -0.5px; margin: 38px 0 12px; padding-top: 12px; border-top: 1px solid var(--color-border-light); }
.doc h3 { font-size: 16px; font-weight: 600; margin: 22px 0 8px; }
.doc p { font-size: 14.5px; color: var(--color-text-secondary); line-height: 1.75; margin-bottom: 12px; }
.doc ul, .doc ol { margin: 0 0 14px 22px; }
.doc li { font-size: 14.5px; color: var(--color-text-secondary); line-height: 1.7; margin-bottom: 6px; }
.doc strong { color: var(--color-text); }
.doc a { color: var(--color-accent); }
.doc code {
    font-family: 'IBM Plex Mono', monospace; font-size: 0.86em;
    background: var(--color-bg-secondary); border: 1px solid var(--color-border-light);
    padding: 1px 6px; border-radius: 6px;
}
.doc .updated { font-size: 12.5px; color: var(--color-text-tertiary); margin-top: 6px; }
.doc .note {
    background: var(--color-accent-light); border: 1px solid var(--color-border-light);
    border-radius: var(--radius); padding: 14px 16px; margin: 16px 0; font-size: 13.5px;
    color: var(--color-text-secondary); display: flex; gap: 10px; align-items: flex-start;
}
.doc .note i { color: var(--color-accent); font-size: 18px; flex-shrink: 0; margin-top: 1px; }

/* índice rápido (cards) */
.toc { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin: 20px 0 8px; }
.toc a {
    border: 1px solid var(--color-border-light); border-radius: var(--radius); padding: 14px 16px;
    text-decoration: none; background: var(--color-surface); box-shadow: var(--shadow-sm);
}
.toc a:hover { border-color: var(--color-accent); box-shadow: var(--shadow-md); }
.toc .t { font-size: 14px; font-weight: 600; color: var(--color-text); }
.toc .d { font-size: 12.5px; color: var(--color-text-tertiary); margin-top: 2px; }

/* ---- FOOTER ---- */
footer {
    border-top: 1px solid var(--color-border-light); padding: 26px 24px;
    display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
    max-width: 1120px; margin: 0 auto;
}
.footer-logo { font-family: 'IBM Plex Mono', monospace; font-size: 13px; color: var(--color-text-secondary); }
.footer-links { display: flex; gap: 18px; flex-wrap: wrap; }
.footer-links a { font-size: 12.5px; color: var(--color-text-tertiary); text-decoration: none; }
.footer-links a:hover { color: var(--color-accent); }

@media (max-width: 600px) {
    .toc { grid-template-columns: 1fr; }
    footer { flex-direction: column; text-align: center; }
}