/* ── Design tokens ───────────────────────────────────────────────── */
:root {
  --brand: #2563eb;
  --brand-strong: #1d4ed8;
  --brand-soft: #dbeafe;
  --accent: #f97316;
  --accent-strong: #ea580c;
  --fg: #0f172a;
  --fg-muted: #475569;
  --fg-subtle: #94a3b8;
  --border: #e2e8f0;
  --bg: #ffffff;
  --bg-soft: #f8fafc;
  --warn-bg: #fef3c7;
  --warn-fg: #92400e;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow: 0 1px 3px rgba(15, 23, 42, 0.06), 0 4px 12px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 10px 30px rgba(15, 23, 42, 0.10);
  --radius: 12px;
  --radius-lg: 16px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, sans-serif;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }
.section-title { font-size: 30px; line-height: 1.2; margin: 0 0 8px; letter-spacing: -0.02em; }
.section-sub { color: var(--fg-muted); margin: 0 0 32px; max-width: 640px; }

/* ── Buttons ─────────────────────────────────────────────────────── */
.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 15px;
  transition: transform 0.05s ease, background 0.15s ease, color 0.15s ease;
  cursor: pointer;
  border: 1px solid transparent;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { background: var(--accent-strong); }
.btn-ghost { background: transparent; color: var(--fg); border-color: var(--border); }
.btn-ghost:hover { background: var(--bg-soft); }
.btn-lg { padding: 14px 28px; font-size: 16px; }

/* ── Founding banner ─────────────────────────────────────────────── */
.founding-banner {
  background: var(--warn-bg);
  color: var(--warn-fg);
  text-align: center;
  font-size: 14px;
  padding: 10px 24px;
  font-weight: 500;
}
.founding-banner strong { font-weight: 700; }

/* ── Header ──────────────────────────────────────────────────────── */
.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(140%) blur(10px);
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav { display: flex; align-items: center; justify-content: space-between; padding: 14px 24px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; }
.brand:hover { text-decoration: none; }
.brand-mark { background: var(--fg); color: white; padding: 6px 10px; border-radius: 8px; font-size: 13px; letter-spacing: 0.04em; }
.brand-mark.small { display: inline-block; }
.brand-name { font-size: 15px; }
.brand-by { color: var(--fg-muted); font-weight: 500; }
.primary-nav { display: flex; align-items: center; gap: 20px; }
.primary-nav a { font-size: 14px; color: var(--fg-muted); }
.primary-nav a:hover { color: var(--fg); text-decoration: none; }
.nav-cta {
  background: var(--fg);
  color: white !important;
  padding: 8px 16px;
  border-radius: 8px;
  font-weight: 600;
}
.nav-cta:hover { background: #1e293b; }
@media (max-width: 720px) {
  .primary-nav a:not(.nav-cta) { display: none; }
}

/* ── Hero ────────────────────────────────────────────────────────── */
.hero { padding: 56px 0 64px; background: linear-gradient(180deg, var(--bg-soft) 0%, var(--bg) 100%); }
.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}
@media (max-width: 860px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
}
.eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--brand);
  background: var(--brand-soft);
  padding: 4px 10px;
  border-radius: 999px;
  margin: 0 0 16px;
}
.hero h1 {
  font-size: clamp(34px, 5vw, 52px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
}
.hero-sub { font-size: 18px; color: var(--fg-muted); max-width: 540px; margin: 0 0 28px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-note { font-size: 13px; color: var(--fg-subtle); margin: 16px 0 0; }

/* Mock device */
.device-frame {
  background: white;
  border-radius: 18px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  overflow: hidden;
  transform: rotate(-1.5deg);
}
.device-chrome { background: var(--bg-soft); padding: 8px 12px; display: flex; gap: 6px; border-bottom: 1px solid var(--border); }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--border); }
.device-screen { padding: 14px; display: flex; flex-direction: column; gap: 10px; }
.mock-row { font-size: 13px; color: var(--fg-muted); padding: 8px 12px; border-radius: 8px; background: var(--bg-soft); }
.mock-search { font-weight: 500; }
.mock-card { display: grid; grid-template-columns: 56px 1fr auto; gap: 12px; align-items: center; padding: 10px; border: 1px solid var(--border); border-radius: 10px; }
.mock-photo { width: 56px; height: 56px; border-radius: 8px; background: linear-gradient(135deg, #fef3c7, #fcd34d); }
.mock-photo.alt { background: linear-gradient(135deg, #dbeafe, #93c5fd); }
.mock-title { font-size: 13px; font-weight: 600; }
.mock-meta { font-size: 12px; color: var(--fg-muted); }
.mock-share { background: var(--accent); color: white; border: none; padding: 6px 10px; border-radius: 6px; font-size: 12px; font-weight: 600; cursor: pointer; }
.mock-foot { font-size: 11px; color: var(--brand); background: var(--brand-soft); }

/* ── How it works ────────────────────────────────────────────────── */
.howitworks { padding: 64px 0; background: var(--bg); }
.steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 720px) { .steps { grid-template-columns: 1fr; } }
.steps li {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}
.step-number {
  width: 36px; height: 36px;
  background: var(--fg); color: white;
  border-radius: 999px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  margin-bottom: 14px;
}
.steps h3 { font-size: 17px; margin: 0 0 6px; }
.steps p { font-size: 14px; color: var(--fg-muted); margin: 0; }

/* ── Modules showcase ────────────────────────────────────────────── */
.modules { padding: 72px 0; background: var(--bg-soft); }
.module-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 24px; }
@media (max-width: 860px) { .module-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .module-grid { grid-template-columns: 1fr; } }
.module-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow-sm);
}
.module-icon { font-size: 28px; margin-bottom: 10px; }
.module-card h3 { font-size: 16px; margin: 0 0 6px; }
.module-card p { font-size: 14px; color: var(--fg-muted); margin: 0; }
.module-tier-note {
  text-align: center;
  font-size: 14px;
  color: var(--fg-muted);
  margin: 24px 0 0;
}
.module-tier-note a { color: var(--brand); font-weight: 600; }

/* ── Founding pitch ──────────────────────────────────────────────── */
.founding-pitch { padding: 72px 0; background: var(--fg); color: white; }
.founding-inner { max-width: 740px; text-align: center; margin: 0 auto; }
.founding-tag {
  display: inline-block;
  background: rgba(249, 115, 22, 0.18);
  color: #fdba74;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 16px;
}
.founding-pitch h2 {
  font-size: clamp(26px, 3.5vw, 36px);
  line-height: 1.2;
  margin: 0 0 18px;
  letter-spacing: -0.01em;
}
.founding-lead, .founding-secondary { color: rgba(255, 255, 255, 0.85); font-size: 16px; }
.founding-lead { margin: 0 0 14px; }
.founding-secondary { margin: 0 0 28px; }
.founding-pitch strong { color: white; }
.founding-pitch .btn-primary { background: var(--accent); }

/* ── Pricing teaser ──────────────────────────────────────────────── */
.pricing { padding: 72px 0; background: var(--bg-soft); }
.cadence-toggle {
  display: inline-flex;
  background: white;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px;
  margin: 12px 0 32px;
  gap: 2px;
}
.cadence-toggle button {
  all: unset;
  cursor: pointer;
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  color: var(--fg-muted);
}
.cadence-toggle button[aria-pressed="true"] { background: var(--fg); color: white; }
.cadence-toggle .savings { font-size: 11px; opacity: 0.85; margin-left: 6px; }

.tier-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 860px) { .tier-grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; } }

.tier {
  position: relative;
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
}
.tier.popular { border: 2px solid var(--brand); padding: 23px; }
.popular-badge {
  position: absolute;
  top: -12px; left: 50%;
  transform: translateX(-50%);
  background: var(--brand);
  color: white;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}
.tier-name { font-size: 22px; margin: 0 0 4px; }
.tier-tag { font-size: 13px; color: var(--fg-muted); margin: 0 0 18px; min-height: 36px; }
.tier-price { margin-bottom: 18px; }
.tier-price .price { display: none; }
.tier-price .price strong { font-size: 36px; font-weight: 700; letter-spacing: -0.02em; }
.tier-price .price-billed { display: none; font-size: 12px; color: var(--fg-muted); margin-top: 4px; }

/* Cadence-driven visibility (mirrors /v1/upgrade pattern) */
.tier-grid[data-cadence="monthly"]  .price-monthly,
.tier-grid[data-cadence="monthly"]  .price-billed.price-monthly  { display: block; }
.tier-grid[data-cadence="sixMonth"] .price-sixMonth,
.tier-grid[data-cadence="sixMonth"] .price-billed.price-sixMonth { display: block; }
.tier-grid[data-cadence="yearly"]   .price-yearly,
.tier-grid[data-cadence="yearly"]   .price-billed.price-yearly   { display: block; }

.tier ul { list-style: none; padding: 0; margin: 0 0 20px; flex: 1; }
.tier li {
  padding: 8px 0;
  font-size: 14px;
  border-bottom: 1px solid var(--bg-soft);
  position: relative;
  padding-left: 22px;
}
.tier li:last-child { border-bottom: none; }
.tier li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--brand);
  font-weight: 700;
}

.pricing-guarantee, .pricing-detail { text-align: center; font-size: 14px; color: var(--fg-muted); margin: 24px 0 0; }
.pricing-detail a { color: var(--brand); font-weight: 600; }

/* ── Testimonials ────────────────────────────────────────────────── */
.testimonials { padding: 64px 0; background: var(--bg); }
.testimonial-empty {
  background: var(--bg-soft);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  color: var(--fg-muted);
  font-size: 15px;
}
.testimonial-empty a { color: var(--brand); font-weight: 600; margin-left: 4px; }

/* ── FAQ ─────────────────────────────────────────────────────────── */
.faq { padding: 64px 0; background: var(--bg-soft); }
.faq details {
  background: white;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0;
  margin-bottom: 10px;
  overflow: hidden;
}
.faq summary {
  padding: 16px 20px;
  font-weight: 600;
  cursor: pointer;
  font-size: 15px;
  list-style: none;
  position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "＋";
  position: absolute;
  right: 20px;
  color: var(--fg-subtle);
  font-weight: 400;
}
.faq details[open] summary::after { content: "－"; }
.faq details p {
  padding: 0 20px 18px;
  margin: 0;
  color: var(--fg-muted);
  font-size: 14px;
}

/* ── Final CTA ───────────────────────────────────────────────────── */
.final-cta {
  padding: 72px 0;
  text-align: center;
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-strong) 100%);
  color: white;
}
.final-cta h2 {
  font-size: clamp(26px, 3.5vw, 38px);
  margin: 0 0 12px;
  letter-spacing: -0.02em;
}
.final-cta p { color: rgba(255, 255, 255, 0.9); font-size: 16px; margin: 0 0 24px; }
.final-cta .btn-primary { background: white; color: var(--brand-strong); }
.final-cta .btn-primary:hover { background: var(--bg-soft); color: var(--brand-strong); }

/* ── Footer ──────────────────────────────────────────────────────── */
.site-footer {
  padding: 40px 0 32px;
  border-top: 1px solid var(--border);
  background: var(--bg);
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
  align-items: start;
}
@media (max-width: 720px) {
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
}
.footer-tag { font-size: 13px; color: var(--fg-muted); margin: 8px 0 0; }
.footer-links { display: flex; flex-direction: column; gap: 8px; }
.footer-links a { font-size: 14px; color: var(--fg-muted); }
.footer-links a:hover { color: var(--fg); }
.footer-meta { font-size: 13px; color: var(--fg-muted); }
.footer-meta a { color: var(--brand); }
.copyright { color: var(--fg-subtle); margin: 8px 0 0; }