:root {
  --bg-dark: #0B1F1B;
  --bg-darker: #081814;
  --bg-light: #F8FAFC;
  --bg-card: #FFFFFF;
  --text-light: #F1F5F9;
  --text-muted: #94A3B8;
  --text-dark: #0F172A;
  --text-body: #334155;
  --accent: #10B981;
  --accent-strong: #059669;
  --border: #E2E8F0;
  --radius: 14px;
  --max: 1140px;
  --font-display: 'Oswald', system-ui, sans-serif;
  --font-body: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  color: var(--text-body);
  background: var(--bg-light);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent-strong); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 760px; }
.center { text-align: center; }
.accent { color: var(--accent); }

/* ===== Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(11, 31, 27, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.header-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px;
}
.brand img { height: 40px; width: auto; filter: brightness(0) invert(1); }

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 700;
  text-decoration: none;
  border-radius: 999px;
  padding: 14px 26px;
  transition: transform .15s ease, background .15s ease, box-shadow .15s ease;
  letter-spacing: .01em;
  border: 0;
  cursor: pointer;
}
.btn-primary { background: var(--accent); color: #04231A; box-shadow: 0 6px 22px rgba(16, 185, 129, .25); }
.btn-primary:hover { background: var(--accent-strong); color: #fff; transform: translateY(-1px); text-decoration: none; }
.btn-sm { padding: 10px 18px; font-size: 14px; }
.btn-lg { padding: 18px 34px; font-size: 18px; }

/* ===== Sections ===== */
.section { padding: 96px 0; }
.section h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.25;
  text-transform: uppercase;
  letter-spacing: .005em;
  margin: 0 0 18px;
  color: var(--text-dark);
}
.section-intro {
  font-size: 1.1rem; max-width: 720px; margin: 0 0 48px; color: var(--text-body);
}
.section-outro {
  font-size: 1.05rem; max-width: 720px; margin: 40px 0 0; color: var(--text-body); font-weight: 600;
}
.section-light { background: var(--bg-light); color: var(--text-dark); }
.section-dark { background: var(--bg-dark); color: var(--text-light); }
.section-dark h2, .section-dark h3 { color: var(--text-light); }
.section-dark .section-intro, .section-dark .section-outro { color: rgba(241,245,249,.85); }
.section-final {
  background: linear-gradient(160deg, var(--bg-darker), var(--bg-dark));
  color: var(--text-light);
  padding: 110px 0;
}
.section-final h2 { color: var(--text-light); }
.section-final .lead { color: rgba(241,245,249,.85); }

/* ===== Hero ===== */
.hero {
  background: linear-gradient(160deg, var(--bg-darker) 0%, var(--bg-dark) 60%, #0F2A24 100%);
  color: var(--text-light);
  padding: 120px 0 110px;
}
.hero .eyebrow {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: .12em;
  font-weight: 600;
  font-size: 14px;
  color: var(--accent);
  margin: 0 0 18px;
}
.hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(36px, 6vw, 64px);
  line-height: 1.2;
  text-transform: uppercase;
  margin: 0 0 22px;
  color: #fff;
  max-width: 880px;
}
.lead {
  font-size: clamp(17px, 2vw, 20px);
  max-width: 640px;
  margin: 0 0 36px;
  color: rgba(241,245,249,.85);
}
.proof { margin-top: 56px; }
.proof-label {
  display: block;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: rgba(241,245,249,.55);
  margin-bottom: 14px;
}
.proof-list {
  list-style: none; padding: 0; margin: 0;
  display: flex; gap: 28px; flex-wrap: wrap;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: .1em;
  font-weight: 600;
  font-size: 17px;
  color: rgba(241,245,249,.9);
}

/* ===== Grids ===== */
.grid { display: grid; gap: 26px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

/* ===== Cards (pain points) ===== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 0 1px 3px rgba(15, 23, 42, .04);
}
.card h3 {
  font-family: var(--font-display);
  text-transform: uppercase;
  font-weight: 600;
  font-size: 20px;
  margin: 0 0 12px;
  color: var(--text-dark);
}
.card p { margin: 0; }

/* ===== Features (dark section) ===== */
.feature {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: 32px;
}
.feature h3 {
  font-family: var(--font-display);
  text-transform: uppercase;
  font-weight: 600;
  font-size: 22px;
  margin: 0 0 14px;
  color: var(--accent);
}
.feature p { margin: 0; color: rgba(241,245,249,.82); }
.cta-row { margin-top: 56px; text-align: center; }

/* ===== Testimonials ===== */
.quote {
  margin: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  display: flex; flex-direction: column; gap: 18px;
}
.quote blockquote {
  margin: 0;
  font-size: 1rem;
  color: var(--text-body);
  font-style: italic;
  line-height: 1.55;
}
.quote figcaption {
  display: flex; flex-direction: column;
  font-size: 14px; color: var(--text-muted);
}
.quote figcaption strong { color: var(--text-dark); font-size: 15px; }

/* ===== Spectrum ===== */
.spectrum {
  display: flex; align-items: center; gap: 24px;
  margin: 64px auto 0; max-width: 760px;
}
.spectrum-end {
  font-family: var(--font-display); font-weight: 700; font-size: 22px;
  color: var(--text-dark); text-align: center; min-width: 90px;
}
.spectrum-end small { display: block; font-family: var(--font-body); font-size: 12px; font-weight: 500; color: var(--text-muted); margin-top: 4px; text-transform: uppercase; letter-spacing: .1em; }
.spectrum-bar {
  flex: 1; height: 8px; border-radius: 999px;
  background: linear-gradient(90deg, #CBD5E1, var(--accent));
  position: relative;
}

/* ===== Audience ===== */
.audience { padding: 32px; border-radius: var(--radius); }
.audience h3 { font-family: var(--font-display); text-transform: uppercase; margin: 0 0 18px; font-size: 20px; }
.audience ul { padding-left: 20px; margin: 0; line-height: 1.7; }
.audience li { margin-bottom: 10px; }
.audience-yes { background: rgba(16,185,129,.10); border: 1px solid rgba(16,185,129,.35); }
.audience-yes h3 { color: var(--accent); }
.audience-no { background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.10); color: rgba(241,245,249,.82); }
.audience-no h3 { color: #FCA5A5; }
.audience-yes li, .audience-yes strong { color: rgba(241,245,249,.92); }

/* ===== Founder ===== */
.founder { display: grid; grid-template-columns: 220px 1fr; gap: 40px; align-items: start; }
.founder img { border-radius: 12px; }
.founder-quote {
  font-family: var(--font-display);
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.4;
  font-weight: 500;
  color: var(--text-dark);
  border-left: 4px solid var(--accent);
  padding-left: 18px;
  margin: 0 0 24px;
  font-style: italic;
}
.founder-body p { margin: 0 0 14px; }

/* ===== FAQ ===== */
.faq {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 22px;
  background: #fff;
  margin-bottom: 14px;
}
.faq summary {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: .02em;
  font-weight: 600;
  font-size: 17px;
  color: var(--text-dark);
  cursor: pointer;
  list-style: none;
  display: flex; justify-content: space-between; align-items: center;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--accent); font-size: 26px; line-height: 1; transition: transform .2s; }
.faq[open] summary::after { content: "−"; }
.faq p { margin: 14px 0 0; }

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-darker);
  color: rgba(241,245,249,.6);
  padding: 28px 0;
  font-size: 14px;
}
.footer-row {
  display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap;
}
.site-footer p { margin: 0; }
.footer-links { list-style: none; padding: 0; margin: 0; display: flex; gap: 22px; }
.footer-links a { color: rgba(241,245,249,.7); }

/* ===== Responsive ===== */
@media (max-width: 880px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .section { padding: 72px 0; }
  .hero { padding: 90px 0 80px; }
  .founder { grid-template-columns: 1fr; }
  .founder img { width: 160px; height: 160px; }
  .spectrum { gap: 12px; }
  .spectrum-end { min-width: 70px; font-size: 18px; }
}