:root {
  --bg: #ffffff;
  --bg-soft: #f7f7f9;
  --bg-elev: #fdfdfd;
  --text: #111418;
  --text-soft: #4a525c;
  --muted: #7a8290;
  --border: #e6e8ec;
  --accent: #ff6b35;
  --accent-hover: #e85a26;
  --accent-fg: #ffffff;
  --shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 4px 24px rgba(15, 23, 42, 0.06);
  --radius: 10px;
  --radius-lg: 18px;
  --max: 1100px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1014;
    --bg-soft: #15181f;
    --bg-elev: #1a1d25;
    --text: #f1f3f6;
    --text-soft: #c8ccd3;
    --muted: #8a92a0;
    --border: #262a32;
    --accent: #ff7a48;
    --accent-hover: #ff8e60;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 4px 24px rgba(0, 0, 0, 0.4);
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Inter, system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

h1, h2, h3 {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Inter, system-ui, sans-serif;
  letter-spacing: -0.01em;
  line-height: 1.15;
  margin: 0 0 0.5em 0;
}

h1 { font-size: clamp(2.2rem, 4vw, 3.5rem); font-weight: 700; }
h2 { font-size: clamp(1.6rem, 2.5vw, 2.2rem); font-weight: 650; margin-bottom: 0.75em; }
h3 { font-size: 1.15rem; font-weight: 600; margin-bottom: 0.4em; }

p { margin: 0 0 1em 0; color: var(--text-soft); }

/* Nav */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.25rem 1.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.05rem;
}

.logo {
  display: inline-block;
  width: 28px; height: 28px;
  border-radius: 7px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  font-size: 0.95rem;
  color: var(--text-soft);
}

.nav-links a:not(.btn):hover { color: var(--text); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.2rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 120ms ease, transform 80ms ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); color: inherit; }
.btn-primary { background: var(--accent); color: var(--accent-fg); }
.btn-primary:hover { background: var(--accent-hover); color: var(--accent-fg); }
.btn-secondary { border-color: var(--border); color: var(--text); }
.btn-secondary:hover { background: var(--bg-soft); }
.btn-sm { padding: 0.45rem 0.9rem; font-size: 0.875rem; }
.btn-lg { padding: 0.95rem 1.6rem; font-size: 1.05rem; }

/* Hero */
.hero {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 3rem;
  align-items: center;
  max-width: var(--max);
  margin: 4rem auto 5rem;
  padding: 0 1.5rem;
}
.hero-text .lede {
  font-size: 1.15rem;
  color: var(--text-soft);
  max-width: 32em;
  margin-bottom: 1.6rem;
}
.hero-cta { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-bottom: 1rem; }
.hero-meta { color: var(--muted); font-size: 0.9rem; }
.hero-screenshot img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

@media (max-width: 800px) {
  .hero { grid-template-columns: 1fr; gap: 2rem; }
}

/* Features */
.features {
  background: var(--bg-soft);
  padding: 4rem 1.5rem;
}
.features h2 { max-width: var(--max); margin: 0 auto 0.6rem; }
.features-lede {
  max-width: var(--max);
  margin: 0 auto 2.2rem;
  font-size: 1.05rem;
  color: var(--text-soft);
  max-width: 56ch;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  max-width: var(--max);
  margin: 0 auto;
}
.feature-grid article {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}
.feature-grid p { margin-bottom: 0; font-size: 0.95rem; }
.feature-grid strong { color: var(--text); font-weight: 600; }

/* Download */
.download {
  background: var(--bg-soft);
  padding: 4rem 1.5rem;
  text-align: center;
}
.download h2 { margin-bottom: 0.4rem; }
.download p { color: var(--text-soft); }
.download-note { font-size: 0.9rem; color: var(--muted); margin-top: 1rem; max-width: 30rem; margin-left: auto; margin-right: auto; }

/* FAQ */
.faq {
  max-width: 720px;
  margin: 4rem auto;
  padding: 0 1.5rem;
}
.faq details {
  border-bottom: 1px solid var(--border);
  padding: 1.1rem 0;
}
.faq summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
  position: relative;
  padding-right: 1.5rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  position: absolute;
  right: 0; top: 0;
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--muted);
  transition: transform 120ms ease;
}
.faq details[open] summary::after { content: "−"; }
.faq details p { margin: 0.7rem 0 0 0; font-size: 0.95rem; }

/* Footer */
footer {
  border-top: 1px solid var(--border);
  padding: 2rem 1.5rem;
  margin-top: 3rem;
  font-size: 0.9rem;
  color: var(--muted);
}
.footer-row {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-links { display: flex; gap: 1.2rem; }

/* Long-form pages (privacy, terms) */
.prose {
  max-width: 720px;
  margin: 3rem auto;
  padding: 0 1.5rem;
}
.prose h1 { font-size: 2rem; }
.prose h2 { font-size: 1.3rem; margin-top: 2rem; }
.prose p, .prose li { color: var(--text-soft); }
.prose ul { padding-left: 1.2rem; }