/* ==========================================================================
   CleanFeed — shared design system for SEO / landing pages.
   Extracted from index.html + compare.html. Existing pages keep their own
   inline styles; this file is linked only by the new /vs/, /best-*, /how-to-*
   pages so they stay visually identical to the rest of the site.
   ========================================================================== */

:root {
  --bg:        #0f1722;
  --bg-elev:   #15202e;
  --bg-elev-2: #1c2a3a;
  --bg-elev-3: #243549;
  --border:    #233346;
  --text:      #e6edf6;
  --text-dim:  #93a0b3;
  --text-faint:#5e6c7e;
  --accent:    #3cc8c8;
  --accent-2:  #6fffff;
  --accent-glow: rgba(60, 200, 200, 0.20);
  --gold:      #f2cf5f;
  --warn:      #ff7a8a;
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.40);
  --shadow-lg: 0 22px 60px rgba(0, 0, 0, 0.55);
  --grad-accent: linear-gradient(95deg, #3cc8c8 0%, #6fffff 100%);
  --r-sm: 8px; --r-md: 12px; --r-lg: 16px; --r-xl: 22px;
  --ease: cubic-bezier(0.20, 0.80, 0.30, 1);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background:
    radial-gradient(1100px 600px at 22% -10%, rgba(60, 200, 200, 0.10), transparent 60%),
    radial-gradient(900px 600px at 90% 110%, rgba(242, 207, 95, 0.04), transparent 60%),
    var(--bg);
  color: var(--text);
  font: 400 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI",
        Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---- nav (matches index.html) ---- */
.nav {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 28px 0;
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav img { width: 32px; height: 32px; border-radius: 8px; }
.nav-brand { font-weight: 700; letter-spacing: 0.2px; color: var(--text); }
.nav-brand:hover { text-decoration: none; }
.nav-spacer { flex: 1; }
.nav a {
  color: var(--text-dim);
  font-size: 14px;
  padding: 8px 12px;
  border-radius: var(--r-sm);
  transition: color 150ms var(--ease), background 150ms var(--ease);
}
.nav a:hover { color: var(--text); background: var(--bg-elev); text-decoration: none; }

/* ---- article layout ---- */
.container { max-width: 820px; margin: 0 auto; padding: 24px 28px 64px; }
.container.wide { max-width: 980px; }

.back {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13.5px; color: var(--text-dim);
  padding: 8px 10px; border-radius: var(--r-sm);
  transition: background 150ms var(--ease), color 150ms var(--ease);
}
.back:hover { color: var(--text); background: var(--bg-elev); text-decoration: none; }

.post-hero { padding: 32px 0 16px; border-bottom: 1px solid var(--border); margin-bottom: 36px; }
.post-hero h1 {
  font-size: clamp(28px, 4.8vw, 44px);
  letter-spacing: -0.8px;
  margin: 14px 0 10px;
  line-height: 1.12;
  background: linear-gradient(120deg, #f6f9ff 0%, #b9d3da 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.post-hero p.sub {
  color: var(--text-dim);
  font-size: 18px;
  margin: 0 0 12px;
  max-width: 760px;
  line-height: 1.55;
}
.post-hero .meta { color: var(--text-faint); font-size: 13.5px; }

/* ---- prose ---- */
.prose { font-size: 16.5px; line-height: 1.7; color: var(--text); }
.prose h2 {
  margin: 44px 0 14px;
  font-size: 24px;
  letter-spacing: -0.4px;
  color: var(--text);
}
.prose h3 { margin: 28px 0 8px; font-size: 18px; font-weight: 600; color: var(--text); }
.prose p { margin: 0 0 16px; color: var(--text-dim); }
.prose p strong, .prose li strong { color: var(--text); font-weight: 600; }
.prose ul, .prose ol { margin: 0 0 18px; padding-left: 22px; color: var(--text-dim); }
.prose li { margin: 0 0 8px; line-height: 1.65; }
.prose a { color: var(--accent); }

/* ---- disclosure / callout box ---- */
.callout {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: var(--r-lg);
  padding: 18px 22px;
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.6;
  box-shadow: var(--shadow-md);
  margin: 24px 0;
}
.callout strong { color: var(--text); }

/* ---- comparison table (matches compare.html) ---- */
.table-wrap {
  overflow-x: auto;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-md);
  margin: 8px 0 28px;
}
table.compare {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 14.5px;
}
table.compare th,
table.compare td {
  padding: 11px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
table.compare th {
  font-weight: 600;
  color: var(--text-dim);
  letter-spacing: 0.02em;
  font-size: 13px;
  background: var(--bg-elev-2);
  position: sticky; top: 0;
}
table.compare th.us, table.compare td.us {
  background: linear-gradient(180deg, rgba(60,200,200,0.08), transparent);
}
table.compare th.us { color: var(--accent); }
table.compare tr:last-child td { border-bottom: none; }
table.compare td.feature { color: var(--text); font-weight: 500; white-space: normal; }
.yes { color: var(--accent); font-size: 16px; }
.no  { color: var(--text-faint); font-size: 16px; }

/* ---- "when X is better" / verdict cards ---- */
.vs {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 22px 24px;
  box-shadow: var(--shadow-md);
  margin: 0 0 16px;
}
.vs.us {
  border-color: rgba(60, 200, 200, 0.32);
  background: linear-gradient(160deg, rgba(60, 200, 200, 0.08), var(--bg-elev) 70%);
}
.vs h3 { display: flex; align-items: center; gap: 8px; margin-top: 0; }
.vs .tag {
  font-size: 10px;
  letter-spacing: 0.08em;
  font-weight: 700;
  padding: 3px 7px;
  border-radius: 4px;
  background: var(--grad-accent);
  color: #0b1828;
}
.vs p { margin: 6px 0; color: var(--text-dim); font-size: 14.5px; line-height: 1.6; }
.vs p .lbl { color: var(--text); font-weight: 600; margin-right: 6px; }

/* ---- ranked list entry (best-of page) ---- */
.rank {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 24px 26px;
  box-shadow: var(--shadow-md);
  margin: 0 0 18px;
}
.rank.us {
  border-color: rgba(60, 200, 200, 0.32);
  background: linear-gradient(160deg, rgba(60, 200, 200, 0.08), var(--bg-elev) 70%);
}
.rank-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 4px; }
.rank-num {
  display: inline-grid; place-items: center;
  min-width: 34px; height: 34px; padding: 0 6px;
  border-radius: 50%;
  background: var(--grad-accent);
  color: #0b1828;
  font-weight: 700; font-size: 15px;
  flex: 0 0 auto;
}
.rank-head h3 { margin: 0; font-size: 19px; }
.rank-price { margin-left: auto; color: var(--text-faint); font-size: 13.5px; white-space: nowrap; }

/* ---- decision box ---- */
.decision {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 14px 26px;
  box-shadow: var(--shadow-md);
  margin: 8px 0 16px;
}
.decision ul { padding-left: 22px; margin: 12px 0; color: var(--text-dim); font-size: 15px; line-height: 1.7; }
.decision ul li strong { color: var(--text); }

/* ---- buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 22px;
  font: inherit;
  font-weight: 600;
  font-size: 15px;
  color: var(--text);
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  cursor: pointer;
  transition: transform 100ms var(--ease), background 150ms var(--ease),
              box-shadow 150ms var(--ease), filter 150ms var(--ease);
  text-decoration: none;
}
.btn:hover { transform: translateY(-2px); background: var(--bg-elev-2); text-decoration: none; }
.btn-primary, .btn.primary {
  background: var(--grad-accent);
  color: #0b1828;
  border: none;
  box-shadow: 0 8px 24px rgba(60, 200, 200, 0.30);
}
.btn-primary:hover, .btn.primary:hover { filter: brightness(1.06); box-shadow: 0 12px 32px rgba(60, 200, 200, 0.45); }
.btn-outline {
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--accent);
}
.btn-outline:hover { background: var(--accent-glow); }

/* ---- final CTA block ---- */
.cta-block {
  text-align: center;
  margin: 48px 0 8px;
  padding: 36px 28px 32px;
  background: linear-gradient(160deg, rgba(60, 200, 200, 0.10), var(--bg-elev) 75%);
  border: 1px solid rgba(60, 200, 200, 0.32);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-md);
}
.cta-block h2 { margin: 0 0 10px; font-size: 26px; letter-spacing: -0.3px; }
.cta-block p { margin: 0 auto 20px; max-width: 520px; color: var(--text-dim); font-size: 15px; }
.cta-sub { display: block; margin-top: 14px; color: var(--text-dim); font-size: 13.5px; }

/* ---- footer (matches index.html) ---- */
footer.site {
  border-top: 1px solid var(--border);
  padding: 28px;
  text-align: center;
  color: var(--text-faint);
  font-size: 13px;
  margin-top: 56px;
}
footer.site a { color: var(--text-dim); }
footer.site .row {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

@media (max-width: 600px) {
  .container { padding: 16px 18px 48px; }
  table.compare th, table.compare td { padding: 9px 10px; font-size: 13px; }
  .rank-price { display: none; }
  footer.site .row { flex-direction: column; text-align: center; }
}