/* RivalBrief — minimal static landing */
:root {
  --bg: #fafaf9;
  --surface: #ffffff;
  --text: #1c1917;
  --muted: #57534e;
  --border: #e7e5e4;
  --accent: #0f766e;
  --accent-hover: #0d9488;
  --accent-soft: #ccfbf1;
  --radius: 10px;
  --max: 720px;
  --wide: 960px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); text-decoration: underline; }
img { max-width: 100%; height: auto; }

.wrap { width: min(100% - 2rem, var(--wide)); margin-inline: auto; }
.wrap-narrow { width: min(100% - 2rem, var(--max)); margin-inline: auto; }

/* Nav */
.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  position: sticky;
  top: 0;
  z-index: 10;
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
  flex-wrap: wrap;
}
.logo {
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
}
.logo:hover { text-decoration: none; color: var(--text); }
.logo span { color: var(--accent); font-weight: 500; font-size: 0.8rem; margin-left: 0.35rem; }
.nav-links {
  display: flex;
  gap: 1.25rem;
  align-items: center;
  flex-wrap: wrap;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a { color: var(--muted); font-size: 0.95rem; }
.nav-links a:hover { color: var(--text); }

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.7rem 1.25rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.btn:hover { text-decoration: none; }
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-hover); color: #fff; }
.btn-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-secondary:hover { border-color: var(--muted); color: var(--text); }
.btn-block { width: 100%; text-align: center; }

/* Hero */
.hero {
  padding: 4rem 0 3rem;
  text-align: center;
}
.hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin: 0 0 1rem;
  max-width: 18ch;
  margin-inline: auto;
}
.hero .sub {
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 42rem;
  margin: 0 auto 1.75rem;
}
.cta-row {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}
.micro { font-size: 0.85rem; color: var(--muted); margin: 0 0 1.25rem; }
.trust { font-size: 0.9rem; color: var(--muted); }

/* Sections */
section { padding: 3rem 0; }
section h2 {
  font-size: 1.5rem;
  letter-spacing: -0.02em;
  margin: 0 0 1.5rem;
  text-align: center;
}
.section-alt { background: var(--surface); border-block: 1px solid var(--border); }

/* Steps */
.steps {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin-bottom: 1.5rem;
}
.step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}
.step-num {
  display: inline-block;
  width: 1.75rem;
  height: 1.75rem;
  line-height: 1.75rem;
  text-align: center;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
}
.step h3 { margin: 0 0 0.4rem; font-size: 1.05rem; }
.step p { margin: 0; color: var(--muted); font-size: 0.95rem; }

/* Feature list */
.brief-list {
  list-style: none;
  padding: 0;
  margin: 0 auto;
  max-width: 36rem;
}
.brief-list li {
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--border);
  display: grid;
  grid-template-columns: 10rem 1fr;
  gap: 0.75rem;
  font-size: 0.95rem;
}
.brief-list strong { color: var(--text); }
.brief-list span { color: var(--muted); }
@media (max-width: 560px) {
  .brief-list li { grid-template-columns: 1fr; gap: 0.15rem; }
}

/* Who */
.who-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  margin-bottom: 1rem;
}
.who-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.15rem;
  font-size: 0.95rem;
  color: var(--muted);
}
.not-for {
  font-size: 0.9rem;
  color: var(--muted);
  text-align: center;
  margin: 1rem 0 0;
}

/* Pricing */
.pricing {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  align-items: stretch;
}
.price-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
}
.price-card.featured {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}
.price-card h3 { margin: 0 0 0.25rem; font-size: 1.1rem; }
.price {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0.25rem 0 1rem;
}
.price small { font-size: 0.9rem; font-weight: 500; color: var(--muted); }
.price-card ul {
  list-style: none;
  padding: 0;
  margin: 0 0 1.25rem;
  flex: 1;
}
.price-card li {
  padding: 0.35rem 0;
  font-size: 0.95rem;
  color: var(--muted);
  padding-left: 1.25rem;
  position: relative;
}
.price-card li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}
.price-note {
  text-align: center;
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 1.25rem;
}

/* FAQ */
.faq { max-width: 40rem; margin: 0 auto; }
.faq details {
  border-bottom: 1px solid var(--border);
  padding: 0.85rem 0;
}
.faq summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before {
  content: "+";
  display: inline-block;
  width: 1.25rem;
  color: var(--accent);
  font-weight: 700;
}
.faq details[open] summary::before { content: "−"; }
.faq details p {
  margin: 0.5rem 0 0.25rem 1.25rem;
  color: var(--muted);
  font-size: 0.95rem;
}

/* CTA band */
.cta-band {
  text-align: center;
  padding: 3.5rem 0;
  background: var(--accent);
  color: #fff;
}
.cta-band h2 {
  color: #fff;
  margin-bottom: 1.25rem;
  max-width: 28rem;
  margin-inline: auto;
}
.cta-band .btn-primary {
  background: #fff;
  color: var(--accent);
}
.cta-band .btn-primary:hover { background: var(--accent-soft); color: var(--accent); }
.cta-band .micro { color: rgba(255,255,255,0.85); margin-top: 0.75rem; }

/* Waitlist form */
.waitlist {
  max-width: 28rem;
  margin: 0 auto;
  text-align: left;
}
.waitlist label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}
.waitlist input[type="email"] {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font: inherit;
  margin-bottom: 0.75rem;
}
.waitlist .or {
  text-align: center;
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0.75rem 0;
}

/* Proof */
.proof {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 2rem;
}
.quote {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.15rem;
  font-size: 0.9rem;
  color: var(--muted);
  max-width: 18rem;
  font-style: italic;
}
.quote cite {
  display: block;
  margin-top: 0.5rem;
  font-style: normal;
  font-size: 0.8rem;
  color: var(--text);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0 2rem;
  font-size: 0.9rem;
  color: var(--muted);
  background: var(--surface);
}
.footer-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 2fr 1fr;
}
@media (max-width: 640px) {
  .footer-grid { grid-template-columns: 1fr; }
}
.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.footer-links a { color: var(--muted); }
.disclaimer-block {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  line-height: 1.5;
}
.disclaimer-block p { margin: 0 0 0.65rem; }
.center { text-align: center; }
.mt-1 { margin-top: 1rem; }

/* Legal pages */
.legal-page { padding: 2.5rem 0 4rem; }
.legal-page h1 {
  font-size: 1.75rem;
  letter-spacing: -0.02em;
  margin: 0 0 0.5rem;
}
.legal-page .meta { color: var(--muted); font-size: 0.9rem; margin-bottom: 2rem; }
.legal-page h2 { font-size: 1.15rem; text-align: left; margin: 1.75rem 0 0.5rem; }
.legal-page p, .legal-page li { color: var(--muted); }
.legal-page ul { padding-left: 1.25rem; }
.legal-page address {
  font-style: normal;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin: 1rem 0;
  color: var(--text);
}

/* —— Generate UI —— */
.gen-page { padding: 2rem 0 4rem; }
.gen-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}
.gen-card h1 { margin-top: 0; font-size: 1.6rem; letter-spacing: -0.02em; }
.gen-form label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--muted);
}
.gen-form .field { margin-bottom: 1rem; }
.gen-form input[type="url"],
.gen-form input[type="text"],
.gen-form select {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
  background: #fff;
}
.gen-form input:focus,
.gen-form select:focus {
  outline: 2px solid var(--accent-soft);
  border-color: var(--accent);
}
.gen-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: flex-end;
}
.gen-row .field { flex: 1; min-width: 180px; }
.credits-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
}
.gen-error {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #991b1b;
  padding: 0.85rem 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
}
.gen-status {
  color: var(--muted);
  font-size: 0.95rem;
  margin: 0.75rem 0;
}
.brief-out {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}
.brief-out .brief-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}
.brief-md {
  font-size: 0.95rem;
  line-height: 1.65;
  overflow-x: auto;
}
.brief-md h1, .brief-md h2, .brief-md h3 { letter-spacing: -0.02em; }
.brief-md table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin: 1rem 0;
}
.brief-md th, .brief-md td {
  border: 1px solid var(--border);
  padding: 0.45rem 0.6rem;
  text-align: left;
  vertical-align: top;
}
.brief-md th { background: #f5f5f4; }
.brief-md pre, .brief-md code {
  background: #f5f5f4;
  border-radius: 4px;
  font-size: 0.88em;
}
.brief-md pre { padding: 0.75rem; overflow-x: auto; }
.brief-md code { padding: 0.1rem 0.3rem; }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.spinner {
  display: inline-block;
  width: 1rem; height: 1rem;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: rbspin 0.7s linear infinite;
  vertical-align: -0.15em;
  margin-right: 0.4rem;
}
@keyframes rbspin { to { transform: rotate(360deg); } }