:root {
  --orange: #E68000;
  --orange-light: #FFA733;
  --orange-dark: #C15600;
  --navy: #162138;
  --navy-light: #2a3b5e;
  --cream: #FFF5DC;
  --text: #1c1e26;
  --text-muted: #5b6478;
  --bg: #fff;
  --bg-soft: #fafafa;
  --border: #ececec;
  --radius: 16px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Hiragino Sans", "Yu Gothic", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header ===== */
.site-header {
  padding: 16px 0;
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
  background: rgba(255,255,255,0.85);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
}
.logo img { width: 36px; height: 36px; border-radius: 8px; }
.nav a {
  margin-left: 24px;
  color: var(--text-muted);
  font-size: 14px;
}
.nav a:hover { color: var(--orange-dark); text-decoration: none; }

/* ===== Hero ===== */
.hero {
  padding: 80px 0 64px;
  background: radial-gradient(ellipse at top left, var(--orange-light) 0%, var(--orange) 50%, var(--orange-dark) 100%);
  color: #fff;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero h1 {
  font-size: 48px;
  margin: 24px 0 8px;
  letter-spacing: -0.02em;
}
.hero .tagline {
  font-size: 20px;
  margin: 0 0 32px;
  opacity: 0.95;
}
.hero-icon {
  width: 120px;
  height: 120px;
  border-radius: 26px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.25);
}
.hero .btn-row {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  transition: transform .15s ease, box-shadow .15s ease;
}
.btn-primary {
  background: #fff;
  color: var(--orange-dark);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(0,0,0,0.15); text-decoration: none; }
.btn-secondary {
  background: rgba(255,255,255,0.15);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.4);
}
.btn-secondary:hover { background: rgba(255,255,255,0.25); text-decoration: none; }

/* ===== Section ===== */
section { padding: 80px 0; }
section.alt { background: var(--bg-soft); }
section h2 {
  font-size: 32px;
  margin: 0 0 12px;
  letter-spacing: -0.01em;
  text-align: center;
}
section .lede {
  text-align: center;
  font-size: 17px;
  color: var(--text-muted);
  margin-bottom: 48px;
}

/* ===== Features ===== */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.feature-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform .15s ease, box-shadow .15s ease;
}
.feature-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.06);
}
.feature-card .icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--orange-light), var(--orange-dark));
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 22px;
  margin-bottom: 18px;
}
.feature-card h3 {
  margin: 0 0 8px;
  font-size: 17px;
  letter-spacing: -0.005em;
}
.feature-card p {
  margin: 0;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ===== Target users ===== */
.persona {
  background: var(--navy);
  color: #fff;
  border-radius: var(--radius);
  padding: 48px;
  margin-top: 24px;
}
.persona h2 { color: #fff; }
.persona ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px 32px;
}
.persona li {
  padding-left: 28px;
  position: relative;
  font-size: 15px;
  opacity: 0.9;
}
.persona li::before {
  content: "✓";
  color: var(--orange-light);
  font-weight: 700;
  position: absolute;
  left: 0;
  top: 0;
}

/* ===== Privacy callout ===== */
.privacy-callout {
  text-align: center;
  background: linear-gradient(135deg, var(--navy), var(--navy-light));
  color: #fff;
  padding: 64px 32px;
  border-radius: var(--radius);
}
.privacy-callout h2 { color: #fff; margin-bottom: 8px; }
.privacy-callout p {
  max-width: 560px;
  margin: 0 auto;
  font-size: 16px;
  opacity: 0.92;
}

/* ===== FAQ ===== */
.faq {
  max-width: 720px;
  margin: 0 auto;
}
.faq details {
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
}
.faq summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 16px;
  list-style: none;
  position: relative;
  padding-right: 32px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 0;
  color: var(--orange-dark);
  font-size: 24px;
  font-weight: 300;
  transition: transform .2s ease;
}
.faq details[open] summary::after { content: "−"; }
.faq p {
  margin-top: 12px;
  color: var(--text-muted);
  font-size: 15px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--navy);
  color: rgba(255,255,255,0.75);
  padding: 48px 0 32px;
  margin-top: 40px;
}
.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 24px;
}
.site-footer .brand { color: #fff; font-weight: 700; font-size: 16px; display: flex; gap: 10px; align-items: center; }
.site-footer .brand img { width: 28px; height: 28px; border-radius: 6px; }
.site-footer .links a { display: block; color: rgba(255,255,255,0.75); margin-bottom: 6px; font-size: 14px; }
.site-footer .links a:hover { color: #fff; text-decoration: none; }
.site-footer .copy { width: 100%; padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.1); font-size: 12px; opacity: 0.6; }

/* ===== Article / Doc pages ===== */
.doc {
  max-width: 720px;
  margin: 48px auto;
  padding: 0 24px;
}
.doc h1 {
  font-size: 36px;
  margin: 0 0 8px;
  border-bottom: 3px solid var(--orange);
  padding-bottom: 12px;
  display: inline-block;
}
.doc .meta {
  color: var(--text-muted);
  font-size: 13px;
  margin-bottom: 32px;
}
.doc h2 {
  color: var(--navy);
  margin-top: 40px;
  font-size: 22px;
}
.doc h3 {
  color: var(--navy-light);
  margin-top: 24px;
  font-size: 17px;
}
.doc p { font-size: 15px; }
.doc ul { padding-left: 1.4em; }
.doc li { margin-bottom: 6px; }
.doc .back {
  display: inline-block;
  margin-bottom: 24px;
  color: var(--orange-dark);
  font-size: 14px;
}

@media (max-width: 640px) {
  .hero h1 { font-size: 36px; }
  .hero .tagline { font-size: 16px; }
  section { padding: 56px 0; }
  .persona { padding: 32px 24px; }
  .nav a { margin-left: 12px; font-size: 13px; }
}