/* Styles for the static content pages (guides / tips / comparisons). Brand-consistent
   with the app but self-contained — these pages are plain HTML, served outside the SPA. */
:root {
  --c-bg: #0d0e14;
  --c-surface: #14161f;
  --c-border: #262b36;
  --c-border-strong: #3a4150;
  --c-text: #e8ecf4;
  --c-muted: #9aa3b2;
  --c-faint: #6b7280;
  --c-cyan: #4fd6c9;
  --c-cyan-ink: #04201d;
  --c-coral: #f24b5c;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--c-bg);
  color: var(--c-text);
  font-family: 'Inter', -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--c-cyan); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---- nav ---- */
.c-nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 22px;
  background: rgba(13, 14, 20, 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--c-border);
}
.c-brand { display: inline-flex; align-items: center; gap: 9px; color: var(--c-text); font-weight: 800; letter-spacing: -0.2px; }
.c-brand:hover { text-decoration: none; }
.c-brand b { color: var(--c-cyan); font-weight: 800; }
.c-navlinks { display: flex; align-items: center; gap: 20px; font-size: 15px; font-weight: 600; }
.c-navlinks a { color: var(--c-muted); }
.c-navlinks a:hover { color: var(--c-text); text-decoration: none; }
.c-cta {
  display: inline-flex;
  align-items: center;
  background: var(--c-cyan);
  color: var(--c-cyan-ink) !important;
  font-weight: 700;
  padding: 9px 16px;
  border-radius: 10px;
  border: 1px solid #74f0e4;
}
.c-cta:hover { background: #74f0e4; text-decoration: none; }
.c-cta-sm { padding: 7px 13px; font-size: 14px; }

/* ---- layout ---- */
.c-main { max-width: 760px; margin: 0 auto; padding: 28px 22px 8px; }
.c-crumbs { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: 13px; color: var(--c-faint); margin-bottom: 18px; }
.c-crumbs a { color: var(--c-muted); }
.c-crumbs span[aria-current] { color: var(--c-faint); }
.c-kicker { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--c-cyan); margin-bottom: 8px; }

/* ---- article ---- */
.c-article h1 { font-size: 38px; line-height: 1.12; font-weight: 800; letter-spacing: -0.6px; margin: 0 0 14px; }
.c-lede { font-size: 19px; line-height: 1.55; color: var(--c-muted); margin: 0 0 28px; }
.c-article h2 { font-size: 25px; font-weight: 800; letter-spacing: -0.3px; margin: 38px 0 12px; }
.c-article h3 { font-size: 19px; font-weight: 700; margin: 26px 0 8px; }
.c-article p { margin: 0 0 16px; }
.c-article ul, .c-article ol { margin: 0 0 18px; padding-left: 24px; }
.c-article li { margin: 0 0 8px; }
.c-article strong { color: #fff; font-weight: 700; }
.c-article code { font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace; font-size: 0.88em; background: var(--c-surface); border: 1px solid var(--c-border); border-radius: 5px; padding: 1px 6px; }
.c-article blockquote { margin: 0 0 18px; padding: 12px 18px; border-left: 3px solid var(--c-cyan); background: var(--c-surface); border-radius: 0 8px 8px 0; color: var(--c-muted); }
.c-article blockquote p { margin: 0; }
.c-article hr { border: none; border-top: 1px solid var(--c-border); margin: 32px 0; }

/* ---- callout ---- */
.c-callout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  margin: 40px 0 8px;
  padding: 22px 24px;
  border: 1px solid var(--c-border-strong);
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(79, 214, 201, 0.08), rgba(242, 75, 92, 0.06)), var(--c-surface);
}
.c-callout h2 { margin: 0 0 4px; font-size: 20px; }
.c-callout p { margin: 0; color: var(--c-muted); font-size: 15px; max-width: 46ch; }

/* ---- related ---- */
.c-related { max-width: 760px; margin: 36px auto 0; padding: 22px; border-top: 1px solid var(--c-border); }
.c-related h2 { font-size: 16px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--c-faint); margin: 0 0 12px; }
.c-related ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }

/* ---- hub ---- */
.c-hub-head { margin-bottom: 26px; }
.c-hub-head h1 { font-size: 34px; font-weight: 800; letter-spacing: -0.5px; margin: 0 0 10px; }
.c-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 14px; padding-bottom: 12px; }
.c-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px;
  border: 1px solid var(--c-border);
  border-radius: 14px;
  background: var(--c-surface);
  color: var(--c-text);
  transition: transform 120ms ease, border-color 120ms ease, box-shadow 120ms ease;
}
.c-card:hover { transform: translateY(-3px); border-color: var(--c-cyan); box-shadow: 0 10px 26px rgba(0, 0, 0, 0.3); text-decoration: none; }
.c-card h2 { margin: 0; font-size: 19px; font-weight: 700; }
.c-card p { margin: 0; color: var(--c-muted); font-size: 14.5px; line-height: 1.5; flex: 1; }
.c-card-go { color: var(--c-cyan); font-weight: 700; font-size: 14px; }

/* ---- footer ---- */
.c-footer { max-width: 980px; margin: 48px auto 0; padding: 26px 22px 40px; border-top: 1px solid var(--c-border); text-align: center; color: var(--c-faint); font-size: 14px; }
.c-foot-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 18px; margin-bottom: 14px; }
.c-foot-links a { color: var(--c-muted); font-weight: 600; }

@media (max-width: 640px) {
  .c-article h1 { font-size: 30px; }
  .c-navlinks { gap: 13px; font-size: 14px; }
  .c-navlinks a:not(.c-cta) { display: none; }
}
@media (prefers-reduced-motion: reduce) { .c-card:hover { transform: none; } html { scroll-behavior: auto; } }