/* Logic Target — global stylesheet
   Single source of truth, no frameworks, no build step. */

:root {
  --bg: #ffffff;
  --panel: #f7f7f5;
  --panel-2: #f0f0ec;
  --ink: #0a0a0a;
  --ink-2: #1a1d24;
  --muted: #5c616e;
  --muted-2: #8a8f9c;
  --accent: #1e40af;
  --accent-hover: #1d3a9f;
  --accent-2: #dbeafe;
  --border: #e5e7e9;
  --border-2: #d4d6da;
  --ok: #0f766e;
  --ok-2: #d1faf3;
  --warn: #b45309;
  --radius: 10px;
  --radius-sm: 6px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(10, 10, 10, 0.04);
  --shadow: 0 4px 16px rgba(10, 10, 10, 0.06);
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
  --container: 1180px;
  --gutter: 24px;
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent); text-decoration: none; transition: color .15s ease; }
a:hover { color: var(--accent-hover); text-decoration: underline; text-underline-offset: 3px; }

img, svg { max-width: 100%; height: auto; display: block; }

code, pre { font-family: var(--font-mono); }

code {
  background: var(--panel);
  padding: 1px 6px;
  border-radius: var(--radius-sm);
  font-size: 0.9em;
  color: var(--ink-2);
  border: 1px solid var(--border);
}

pre {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 22px;
  font-size: 13px;
  line-height: 1.65;
  overflow-x: auto;
  color: var(--ink-2);
}

pre code { background: transparent; border: 0; padding: 0; }

::selection { background: var(--accent-2); color: var(--ink); }

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--ink);
  color: var(--bg);
  padding: 8px 16px;
  z-index: 100;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { top: 0; }

/* ============================================================
   Layout primitives
============================================================ */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section {
  padding: 96px 0;
}
.section.compact { padding: 64px 0; }
.section.tight { padding: 48px 0; }

@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .section.compact { padding: 48px 0; }
}

.eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

h1, h2, h3, h4, h5, h6 { color: var(--ink); font-weight: 700; letter-spacing: -0.02em; line-height: 1.2; }
h1 { font-size: 56px; line-height: 1.05; letter-spacing: -0.03em; }
h2 { font-size: 40px; }
h3 { font-size: 28px; }
h4 { font-size: 20px; letter-spacing: -0.01em; }
h5 { font-size: 16px; letter-spacing: 0; }

@media (max-width: 768px) {
  h1 { font-size: 36px; }
  h2 { font-size: 30px; }
  h3 { font-size: 22px; }
}

p { color: var(--ink-2); }
p.lead { font-size: 18px; line-height: 1.6; color: var(--muted); max-width: 640px; }

.muted { color: var(--muted); }
.small { font-size: 14px; }
.tiny { font-size: 12px; }

.divider {
  height: 1px;
  background: var(--border);
  margin: 32px 0;
}

/* ============================================================
   Top navigation
============================================================ */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 64px;
}
.nav .logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 15px;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.nav .logo:hover { text-decoration: none; }
.nav .logo-mark {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  background: var(--ink);
  color: var(--bg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13px;
}
.nav .links {
  display: flex;
  gap: 4px;
  margin-left: auto;
}
.nav .links a {
  color: var(--ink-2);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
}
.nav .links a:hover {
  background: var(--panel);
  color: var(--ink);
  text-decoration: none;
}
.nav .links a.active { color: var(--ink); background: var(--panel); }
/* Buttons inside the nav must keep their button color, not inherit link color. */
.nav .links a.btn-primary { color: var(--bg); }
.nav .links a.btn-primary:hover { color: var(--bg); background: var(--ink-2); }
.nav .links a.btn-ghost { color: var(--ink); }
.nav .links a.btn-accent { color: var(--bg); }
.nav .cta { margin-left: 12px; }

.nav .menu-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  margin-left: auto;
}
.nav .menu-toggle svg { width: 18px; height: 18px; color: var(--ink); }

@media (max-width: 900px) {
  .nav .links { display: none; }
  .nav .menu-toggle { display: inline-flex; }
  .nav.open .links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0; right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 16px var(--gutter);
    gap: 4px;
    margin-left: 0;
  }
  .nav.open .cta { margin-left: 0; }
}

/* ============================================================
   Buttons
============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
  padding: 12px 20px;
  border-radius: 100px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .15s ease;
  text-decoration: none;
}
.btn:hover { text-decoration: none; }
.btn-primary {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
  box-shadow: 0 1px 0 rgba(255,255,255,0.06) inset, 0 1px 2px rgba(10,10,10,0.08);
}
.btn-primary:hover { background: var(--ink-2); color: var(--bg); transform: translateY(-1px); box-shadow: 0 1px 0 rgba(255,255,255,0.08) inset, 0 6px 14px rgba(10,10,10,0.14); }
.btn-primary:active { transform: translateY(0); }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--border-2);
}
.btn-ghost:hover { background: var(--panel); color: var(--ink); border-color: var(--ink); }
.btn-accent {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}
.btn-accent:hover { background: var(--accent-hover); color: var(--bg); }
.btn-lg { padding: 14px 24px; font-size: 15px; }
.btn-sm { padding: 8px 14px; font-size: 13px; }

/* ============================================================
   Hero
============================================================ */
.hero {
  padding: 80px 0 64px;
  border-bottom: 1px solid var(--border);
}
.hero .tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
  margin-bottom: 28px;
}
.hero .tag .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--ok);
}
.hero h1 { max-width: 900px; margin-bottom: 22px; }
.hero p.lead { max-width: 680px; font-size: 19px; margin-bottom: 32px; }
.hero .cta-row { display: flex; gap: 12px; flex-wrap: wrap; }
@media (max-width: 768px) {
  .hero { padding: 56px 0 48px; }
}

/* ============================================================
   KPI strip
============================================================ */
.kpi-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 56px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}
.kpi {
  padding: 0;
}
.kpi .v {
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.02em;
  line-height: 1;
}
.kpi .l {
  font-size: 13px;
  color: var(--muted);
  margin-top: 8px;
  line-height: 1.4;
}
@media (max-width: 768px) {
  .kpi-row { grid-template-columns: 1fr 1fr; gap: 24px; }
  .kpi .v { font-size: 26px; }
}

/* ============================================================
   Cards / grids
============================================================ */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
@media (max-width: 900px) {
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
}

.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color .15s ease, transform .15s ease;
}
.card:hover { border-color: var(--border-2); }
.card.panel { background: var(--panel); border-color: transparent; }
.card h3 { font-size: 20px; margin-bottom: 10px; }
.card p { font-size: 15px; color: var(--muted); }

.card .icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--accent-2);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.card .icon svg { width: 20px; height: 20px; }

.brand-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.brand-card .handle {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}
.brand-card h3 { font-size: 22px; }
.brand-card .desc { font-size: 15px; color: var(--muted); flex-grow: 1; }
.brand-card .link { font-size: 13px; font-weight: 600; margin-top: 8px; }

/* ============================================================
   Section headers
============================================================ */
.section-header {
  max-width: 720px;
  margin-bottom: 48px;
}
.section-header h2 { margin-bottom: 12px; }
.section-header p { font-size: 17px; color: var(--muted); }

/* ============================================================
   Process steps
============================================================ */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  counter-reset: step;
}
.steps .step {
  padding: 24px;
  background: var(--panel);
  border-radius: var(--radius-lg);
  counter-increment: step;
  position: relative;
}
.steps .step::before {
  content: "0" counter(step);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 12px;
}
.steps .step h4 { font-size: 16px; margin-bottom: 8px; }
.steps .step p { font-size: 14px; color: var(--muted); }
@media (max-width: 900px) {
  .steps { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .steps { grid-template-columns: 1fr; }
}

/* ============================================================
   FAQ
============================================================ */
.faq { max-width: 800px; }
.faq details {
  border-top: 1px solid var(--border);
  padding: 20px 0;
}
.faq details:last-child { border-bottom: 1px solid var(--border); }
.faq summary {
  font-weight: 600;
  font-size: 16px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  list-style: none;
  color: var(--ink);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 22px;
  color: var(--muted);
  font-weight: 400;
  transition: transform .15s ease;
}
.faq details[open] summary::after { content: "−"; }
.faq details p { margin-top: 12px; color: var(--muted); font-size: 15px; }

/* ============================================================
   Tables
============================================================ */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius-lg); }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
thead th {
  text-align: left;
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  padding: 14px 18px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}
tbody td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  color: var(--ink-2);
  vertical-align: top;
}
tbody tr:last-child td { border-bottom: 0; }
tbody td code { font-size: 12px; }

/* ============================================================
   Forms
============================================================ */
.form { max-width: 600px; }
.form .field { margin-bottom: 20px; }
.form label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-2);
  margin-bottom: 6px;
}
.form input,
.form select,
.form textarea {
  width: 100%;
  font-family: inherit;
  font-size: 15px;
  padding: 12px 14px;
  border: 1px solid var(--border-2);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--ink);
  transition: border-color .15s ease, box-shadow .15s ease;
}
.form input:focus,
.form select:focus,
.form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-2);
}
.form textarea { resize: vertical; min-height: 140px; }
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 600px) { .form .row { grid-template-columns: 1fr; } }
.form .small-note { font-size: 12px; color: var(--muted); margin-top: 12px; }

/* ============================================================
   Callouts
============================================================ */
.callout {
  border-left: 3px solid var(--accent);
  background: var(--accent-2);
  padding: 16px 20px;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 24px 0;
  font-size: 15px;
  color: var(--ink-2);
}
.callout.ok { border-left-color: var(--ok); background: var(--ok-2); }
.callout.warn { border-left-color: var(--warn); background: #fef3c7; }
.callout strong { color: var(--ink); }

/* ============================================================
   Compliance / TikTok blocks
============================================================ */
.compliance {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin: 24px 0;
}
.compliance h4 { margin-bottom: 16px; font-size: 14px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); font-weight: 600; }
.compliance ul { list-style: none; padding: 0; }
.compliance li {
  padding: 8px 0 8px 24px;
  position: relative;
  font-size: 14px;
  color: var(--ink-2);
}
.compliance li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 8px;
  color: var(--ok);
  font-weight: 700;
}

/* ============================================================
   Article / legal pages
============================================================ */
.article {
  max-width: 760px;
  margin: 0 auto;
  padding: 80px 0;
}
.article h1 { margin-bottom: 12px; font-size: 44px; }
.article .meta { color: var(--muted); font-size: 14px; margin-bottom: 48px; padding-bottom: 32px; border-bottom: 1px solid var(--border); }
.article h2 {
  margin-top: 56px;
  margin-bottom: 16px;
  font-size: 24px;
  scroll-margin-top: 80px;
}
.article h3 { margin-top: 32px; margin-bottom: 12px; font-size: 18px; }
.article p { margin-bottom: 16px; font-size: 16px; line-height: 1.7; }
.article ul, .article ol { margin: 0 0 20px 24px; }
.article li { margin-bottom: 8px; font-size: 16px; line-height: 1.6; color: var(--ink-2); }
.article .toc {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin-bottom: 40px;
}
.article .toc h4 { font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); margin-bottom: 12px; font-weight: 600; }
.article .toc ol { margin: 0 0 0 20px; }
.article .toc li { margin-bottom: 4px; font-size: 14px; }
.article .toc a { color: var(--ink-2); }
@media (max-width: 768px) {
  .article { padding: 48px 0; }
  .article h1 { font-size: 32px; }
}

/* ============================================================
   Footer
============================================================ */
.footer {
  background: var(--panel);
  border-top: 1px solid var(--border);
  padding: 64px 0 32px;
  margin-top: 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
.footer .brand-col h5 {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  font-size: 15px;
}
.footer .brand-col p { font-size: 14px; color: var(--muted); margin-bottom: 16px; max-width: 320px; }
.footer .biz-info { font-size: 13px; color: var(--muted); line-height: 1.7; }
.footer .biz-info strong { color: var(--ink); font-weight: 600; display: block; margin-bottom: 4px; }
.footer h5 {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-weight: 600;
  margin-bottom: 14px;
}
.footer ul { list-style: none; padding: 0; }
.footer ul li { margin-bottom: 8px; }
.footer ul a { color: var(--ink-2); font-size: 14px; }
.footer ul a:hover { color: var(--accent); }
.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--muted);
}
.footer-bottom .socials { display: flex; gap: 16px; }
.footer-bottom .socials a { color: var(--muted); }
.footer-bottom .socials a:hover { color: var(--ink); }
@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 600px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   Page header (for inner pages)
============================================================ */
.page-header {
  padding: 80px 0 56px;
  border-bottom: 1px solid var(--border);
}
.page-header h1 { font-size: 48px; margin-bottom: 16px; max-width: 800px; }
.page-header p.lead { font-size: 18px; max-width: 680px; }
@media (max-width: 768px) {
  .page-header { padding: 56px 0 40px; }
  .page-header h1 { font-size: 32px; }
}

/* ============================================================
   Misc
============================================================ */
.scope-table code {
  font-size: 12px;
  background: var(--bg);
}
.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 24px;
}
@keyframes spin { to { transform: rotate(360deg); } }

.tag-row { display: flex; gap: 8px; flex-wrap: wrap; }
.pill {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 500;
  border-radius: 100px;
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--muted);
}
.pill.accent { background: var(--accent-2); color: var(--accent); border-color: transparent; }
.pill.ok { background: var(--ok-2); color: var(--ok); border-color: transparent; }

.cta-band {
  background: var(--ink);
  color: var(--bg);
  border-radius: var(--radius-lg);
  padding: 56px;
  text-align: center;
  margin: 64px 0;
}
.cta-band h2 { color: var(--bg); margin-bottom: 12px; }
.cta-band p { color: rgba(255,255,255,0.7); max-width: 520px; margin: 0 auto 28px; }
.cta-band .btn-primary { background: var(--bg); color: var(--ink); border-color: var(--bg); box-shadow: 0 1px 0 rgba(255,255,255,0.5) inset, 0 6px 18px rgba(0,0,0,0.25); }
.cta-band .btn-primary:hover { background: #fafaf8; color: var(--ink); transform: translateY(-1px); box-shadow: 0 1px 0 rgba(255,255,255,0.6) inset, 0 10px 24px rgba(0,0,0,0.32); }

/* ============================================================
   Modal
============================================================ */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(10, 10, 10, 0.55);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  z-index: 100;
  opacity: 0;
  transition: opacity .18s ease;
}
.modal-backdrop.is-open { display: flex; opacity: 1; }
.modal {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 36px 32px;
  max-width: 460px;
  width: 100%;
  text-align: center;
  box-shadow: 0 24px 48px rgba(0,0,0,0.18);
  transform: translateY(8px) scale(0.98);
  transition: transform .22s cubic-bezier(.2,.7,.2,1);
}
.modal-backdrop.is-open .modal { transform: translateY(0) scale(1); }
.modal-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--ok-2);
  color: var(--ok);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.modal-icon svg { width: 28px; height: 28px; }
.modal h3 { font-size: 22px; margin-bottom: 10px; }
.modal p { font-size: 15px; color: var(--muted); margin-bottom: 24px; line-height: 1.6; }
.modal .sent-email {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-2);
  background: var(--panel);
  padding: 2px 7px;
  border-radius: 4px;
  word-break: break-all;
}
.modal .btn { width: 100%; justify-content: center; }
@media (max-width: 768px) {
  .cta-band { padding: 40px 24px; }
}