/* Toutedly Learn — standalone stylesheet for the static content pages.
   Mirrors the app's brand tokens without pulling in Tailwind. */

:root {
  --canvas: #f6f4f6;
  --surface: #ffffff;
  --ink: #0e1a32;
  --ink-2: #37455f;
  --ink-3: #647089;
  --line: #e3e0e6;
  --teal: #1f8a7c;
  --teal-ink: #0f5f55;
  --mint: #7df29c;
  --aqua: #a2e5e9;
  --sky: #d8ecf4;
  --deep: #0a1d2a;
  --radius: 1rem;
  --sans: Switzer, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --display: Poppins, Switzer, ui-sans-serif, system-ui, sans-serif;
  --wrap: 1180px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink-2);
  background: var(--canvas);
  -webkit-font-smoothing: antialiased;
}

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--ink); color: #fff; padding: 12px 18px; border-radius: 0 0 12px 0;
}
.skip:focus { left: 0; }

a { color: var(--teal-ink); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--ink); }

/* ---------- header ---------- */

.site {
  position: sticky; top: 0; z-index: 40;
  background: rgba(246, 244, 246, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 68px; }
.logo {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--display); font-weight: 600; font-size: 1.13rem;
  color: var(--ink); text-decoration: none; letter-spacing: -0.01em;
}
.logo .mark { display: inline-flex; color: var(--teal); }
.site nav { display: flex; align-items: center; gap: 8px; }
.site nav a {
  font-size: 0.94rem; font-weight: 500; color: var(--ink-2);
  text-decoration: none; padding: 8px 12px; border-radius: 10px;
}
.site nav a:hover { color: var(--ink); background: rgba(14, 26, 50, 0.05); }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--mint); color: var(--ink) !important;
  font-weight: 600; padding: 10px 18px; border-radius: 999px;
  text-decoration: none; border: 1px solid rgba(14, 26, 50, 0.1);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(14, 26, 50, 0.14); background: var(--mint); }
.btn.big { padding: 14px 28px; font-size: 1.02rem; }

/* ---------- shared bits ---------- */

.eyebrow {
  display: inline-block;
  font-size: 0.73rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--teal-ink);
}
.muted { color: var(--ink-3); }
.small { font-size: 0.88rem; }
.crumbs { padding-top: 26px; font-size: 0.88rem; color: var(--ink-3); }
.crumbs a { color: var(--ink-3); text-decoration: none; }
.crumbs a:hover { color: var(--ink); text-decoration: underline; }
.crumbs span { margin: 0 6px; }

h1, h2, h3, h4 { font-family: var(--display); color: var(--ink); letter-spacing: -0.02em; line-height: 1.2; }

/* ---------- hubs ---------- */

.hub-head { padding-top: 40px; padding-bottom: 8px; }
.hub-head h1, .hub-head .lede, .hub-head .eyebrow { max-width: 820px; }
.hub-head h1 { font-size: clamp(2.1rem, 5vw, 3.1rem); margin: 12px 0 14px; }
.lede { font-size: 1.14rem; color: var(--ink-2); margin: 0 0 8px; }
.sec-h { font-size: 1.4rem; margin: 44px 0 18px; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 18px; margin-top: 20px; }
.card {
  display: flex; flex-direction: column; gap: 8px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; text-decoration: none; color: var(--ink-2);
  transition: transform 0.16s ease, box-shadow 0.16s ease, border-color 0.16s ease;
}
.card:hover { transform: translateY(-2px); box-shadow: 0 14px 32px rgba(14, 26, 50, 0.09); border-color: var(--aqua); color: var(--ink-2); }
.card-t { font-family: var(--display); font-weight: 600; font-size: 1.08rem; color: var(--ink); line-height: 1.3; }
.card-d { font-size: 0.94rem; color: var(--ink-3); }
.card-go { font-size: 0.85rem; font-weight: 600; color: var(--teal-ink); margin-top: 4px; }
.ind-card { background: linear-gradient(150deg, #ffffff 0%, var(--sky) 190%); }

/* ---------- article ---------- */

.article { padding-bottom: 40px; }
.art-head { max-width: 780px; padding: 22px 0 10px; }
.art-head h1 { font-size: clamp(2rem, 4.4vw, 2.85rem); margin: 12px 0 12px; }
.meta { font-size: 0.9rem; color: var(--ink-3); margin: 0; }

.answer {
  max-width: 780px; margin: 22px 0 8px; padding: 22px 26px;
  background: linear-gradient(140deg, #ffffff 0%, var(--sky) 240%);
  border: 1px solid var(--aqua); border-left: 4px solid var(--teal);
  border-radius: var(--radius);
}
.answer-h { font-size: 0.73rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--teal-ink); margin: 0 0 8px; }
.answer p { margin: 0; font-size: 1.09rem; color: var(--ink); }

.cols { display: grid; grid-template-columns: 232px minmax(0, 1fr); gap: 52px; align-items: start; margin-top: 34px; }
.toc { position: sticky; top: 92px; font-size: 0.9rem; }
.toc-h { font-size: 0.73rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); margin: 0 0 10px; }
.toc ol { list-style: none; margin: 0; padding: 0; counter-reset: toc; }
.toc li { counter-increment: toc; margin-bottom: 2px; }
.toc a {
  display: block; padding: 6px 10px 6px 30px; border-radius: 8px; position: relative;
  color: var(--ink-3); text-decoration: none; line-height: 1.35;
}
.toc a::before {
  content: counter(toc); position: absolute; left: 10px; top: 6px;
  font-size: 0.76rem; font-variant-numeric: tabular-nums; color: var(--ink-3); opacity: 0.7;
}
.toc a:hover { background: rgba(14, 26, 50, 0.05); color: var(--ink); }

.prose { min-width: 0; max-width: 760px; }
.sec { margin-bottom: 38px; scroll-margin-top: 92px; }
.sec h2 { font-size: 1.62rem; margin: 0 0 14px; }
.sec h3 { font-size: 1.18rem; margin: 26px 0 8px; }
.prose p { margin: 0 0 16px; }
.prose ul, .prose ol { margin: 0 0 18px; padding-left: 22px; }
.prose li { margin-bottom: 8px; }
.prose li::marker { color: var(--teal); }
.prose strong { color: var(--ink); font-weight: 600; }

.prose blockquote {
  margin: 0 0 18px; padding: 16px 20px;
  background: var(--surface); border: 1px solid var(--line); border-left: 3px solid var(--mint);
  border-radius: 12px; color: var(--ink);
}
.prose blockquote p:last-child { margin-bottom: 0; }
.prose blockquote p { font-size: 1rem; }

.prose table {
  width: 100%; border-collapse: collapse; margin: 0 0 20px;
  font-size: 0.94rem; background: var(--surface);
  border: 1px solid var(--line); border-radius: 12px; overflow: hidden;
  display: table;
}
.prose thead { background: var(--sky); }
.prose th {
  text-align: left; font-family: var(--display); font-weight: 600; color: var(--ink);
  padding: 11px 14px; font-size: 0.9rem; border-bottom: 1px solid var(--line);
}
.prose td { padding: 11px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
.prose tbody tr:last-child td { border-bottom: none; }
.table-scroll { overflow-x: auto; margin: 0 0 20px; -webkit-overflow-scrolling: touch; }
.table-scroll table { margin: 0; }

.prose code {
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.88em; background: rgba(14, 26, 50, 0.06); padding: 1px 5px; border-radius: 5px; color: var(--ink);
}
.prose hr { border: none; border-top: 1px solid var(--line); margin: 30px 0; }

/* ---------- faq ---------- */

.faq { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); overflow: hidden; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item:last-child { border-bottom: none; }
.faq-item summary {
  cursor: pointer; padding: 16px 20px; list-style: none;
  font-family: var(--display); font-weight: 600; color: var(--ink); font-size: 1.02rem;
  display: flex; align-items: flex-start; justify-content: space-between; gap: 14px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; flex: none; font-size: 1.3rem; line-height: 1; color: var(--teal);
  transition: transform 0.18s ease;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item summary:hover { background: rgba(162, 229, 233, 0.16); }
.faq-a { padding: 0 20px 18px; }
.faq-a p:last-child { margin-bottom: 0; }
.faq-a p { margin: 0 0 12px; }

/* ---------- sources ---------- */

.sources ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.sources li { font-size: 0.91rem; padding-left: 16px; position: relative; word-break: break-word; }
.sources li::before { content: ""; position: absolute; left: 0; top: 10px; width: 6px; height: 6px; border-radius: 50%; background: var(--aqua); }

/* ---------- cta / related ---------- */

.cta {
  margin: 46px auto 10px; padding: 34px;
  background: var(--deep); color: #e7eef2; border-radius: 1.4rem;
  max-width: var(--wrap);
}
.cta h2 { color: #fff; font-size: 1.55rem; margin: 0 0 10px; }
.cta p { margin: 0 0 20px; max-width: 620px; color: #b9c8d2; }

.related { margin-top: 46px; }
.related h2 { font-size: 1.4rem; margin: 0 0 4px; }

/* ---------- footer ---------- */

.site-foot { margin-top: 60px; border-top: 1px solid var(--line); background: var(--surface); padding: 40px 0 34px; }
.foot-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 34px; }
.foot-h { font-size: 0.78rem; font-weight: 600; letter-spacing: 0.09em; text-transform: uppercase; color: var(--ink-3); margin: 6px 0 12px; }
ul.plain { list-style: none; margin: 0; padding: 0; }
ul.plain li { margin-bottom: 7px; }
ul.plain a { font-size: 0.93rem; color: var(--ink-2); text-decoration: none; }
ul.plain a:hover { color: var(--teal-ink); text-decoration: underline; }
.foot-grid p { margin: 12px 0 0; max-width: 340px; }
.legal { margin: 30px 0 0; padding-top: 20px; border-top: 1px solid var(--line); max-width: 780px; }

/* ---------- responsive ---------- */

@media (max-width: 1000px) {
  .cols { grid-template-columns: 1fr; gap: 26px; }
  .toc {
    position: static; background: var(--surface); border: 1px solid var(--line);
    border-radius: var(--radius); padding: 16px 14px;
  }
  .foot-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 680px) {
  body { font-size: 16.5px; }
  .wrap { padding: 0 18px; }
  .bar { height: 60px; }
  .site nav a:not(.btn) { display: none; }
  .hub-head { padding-top: 28px; padding-bottom: 4px; }
  .answer { padding: 18px 18px; }
  .sec h2 { font-size: 1.4rem; }
  .cta { padding: 26px 22px; margin-inline: 18px; width: auto; }
  .foot-grid { grid-template-columns: 1fr; gap: 22px; }
  .cards { grid-template-columns: 1fr; }
}