:root {
  --bg: #0c0f14;
  --surface: #141a22;
  --surface2: #1c2430;
  --border: #2a3544;
  --text: #e8edf4;
  --muted: #8b9cb3;
  --accent: #3dd6c3;
  --accent-dim: #2a9d8f;
  --amber: #f4a261;
  --sans: "DM Sans", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
  --radius: 12px;
  --max: 1120px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(61, 214, 195, 0.14), transparent),
    radial-gradient(ellipse 60% 40% at 100% 100%, rgba(244, 162, 97, 0.07), transparent);
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.landing { max-width: var(--max); margin: 0 auto; padding: 1.25rem 1.5rem 3rem; }

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.5rem 0 2rem;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
  text-decoration: none;
}

.logo {
  width: 40px; height: 40px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-dim));
  color: var(--bg);
  font-size: 1.25rem;
  font-weight: 700;
  border-radius: 10px;
}

.nav-links { display: flex; align-items: center; gap: 1.25rem; flex-wrap: wrap; }
.nav-links a { color: var(--muted); font-size: 0.9rem; font-weight: 500; text-decoration: none; }
.nav-links a:hover { color: var(--text); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.7rem 1.35rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface2);
  color: var(--text);
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  text-decoration: none;
  transition: filter 0.15s, border-color 0.15s;
}
.btn:hover { filter: brightness(1.06); text-decoration: none; }
.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dim));
  border-color: transparent;
  color: var(--bg);
}
.btn.ghost { background: transparent; border-color: var(--border); }
.btn-sm { padding: 0.45rem 0.9rem; font-size: 0.82rem; }

.hero {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  align-items: center;
  margin-bottom: 4rem;
}

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; }
}

.eyebrow {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--accent);
  margin-bottom: 0.75rem;
  letter-spacing: 0.02em;
}

.hero h1 {
  font-size: clamp(2rem, 4.5vw, 2.85rem);
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.hero-lead { color: var(--muted); font-size: 1.05rem; max-width: 38rem; margin-bottom: 1.5rem; }
.hero-cta { display: flex; gap: 0.75rem; flex-wrap: wrap; }

.hero-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.hero-stats { list-style: none; display: grid; gap: 1rem; }
.hero-stats li {
  display: flex;
  flex-direction: column;
  padding: 0.85rem 1rem;
  background: var(--surface2);
  border-radius: 10px;
  border: 1px solid var(--border);
}
.hero-stats strong { font-size: 1.35rem; color: var(--accent); }
.hero-stats span { font-size: 0.82rem; color: var(--muted); }

.section { margin-bottom: 4rem; }
.section h2 { font-size: 1.65rem; margin-bottom: 0.5rem; letter-spacing: -0.02em; }
.section-lead { color: var(--muted); margin-bottom: 1.75rem; max-width: 42rem; }

.persona-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

@media (max-width: 900px) {
  .persona-grid { grid-template-columns: 1fr; }
}

.persona-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem;
  transition: border-color 0.15s;
}
.persona-card:hover { border-color: var(--accent-dim); }
.persona-icon { font-size: 1.25rem; color: var(--amber); display: block; margin-bottom: 0.5rem; }
.persona-card h3 { font-size: 1.05rem; margin-bottom: 0.5rem; }
.persona-card p { color: var(--muted); font-size: 0.9rem; margin-bottom: 0.85rem; }
.persona-card ul { list-style: none; display: grid; gap: 0.35rem; }
.persona-card li {
  font-size: 0.8rem;
  color: var(--text);
  padding-left: 1rem;
  position: relative;
}
.persona-card li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.75rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.85rem;
}

@media (max-width: 900px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
}

.feature {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem;
}
.feature h4 { font-size: 0.95rem; margin-bottom: 0.35rem; }
.feature p { font-size: 0.82rem; color: var(--muted); }

.video-wrap {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: #000;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
}
.video-wrap video { width: 100%; display: block; aspect-ratio: 1400 / 900; object-fit: contain; background: #000; }
.video-caption { margin-top: 0.85rem; font-size: 0.88rem; color: var(--muted); }

.signup-card {
  max-width: 520px;
  margin: 0 auto;
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
}
.signup-card h2 { margin-bottom: 0.5rem; }
.signup-card > p { color: var(--muted); margin-bottom: 1.25rem; font-size: 0.92rem; }

.signup-form {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.signup-form input {
  flex: 1;
  min-width: 200px;
  padding: 0.7rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 0.95rem;
}
.signup-form input:focus { outline: none; border-color: var(--accent); }

.divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 1.25rem 0;
  color: var(--muted);
  font-size: 0.8rem;
}
.divider::before, .divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}

.google-wrap { display: flex; flex-direction: column; align-items: center; gap: 0.5rem; min-height: 44px; }
.google-hint { font-size: 0.8rem; }
.signup-status { margin-top: 1rem; min-height: 1.25rem; font-size: 0.88rem; }
.signup-status.ok { color: #52b788; }
.signup-status.err { color: #e76f7a; }

.muted { color: var(--muted); }

.footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--muted);
  font-family: var(--mono);
}