:root {
  --bg:      #fff;
  --border:  #e0e0e0;
  --text:    #000;
  --muted:   #666;
  --blue:    #006bb7;
  --green:   #1a7a2e;
  --font:    -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

/* ── Header ── */
header {
  border-bottom: 1px solid #000;
  padding: 0 20px;
  height: 52px;
  display: flex;
  align-items: center;
  gap: 16px;
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 50;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
  flex-shrink: 0;
}

.logo img {
  height: 32px;
  width: 32px;
  border-radius: 7px;
  object-fit: contain;
}

.logo-name {
  font-size: 16px;
  font-weight: 700;
}

nav {
  display: flex;
  gap: 2px;
  margin-left: auto;
}

nav a {
  font-size: 13px;
  color: var(--muted);
  padding: 4px 10px;
  border: 1px solid transparent;
  text-decoration: none;
  white-space: nowrap;
}

nav a:hover { color: var(--text); border-color: var(--border); }
nav a.active { color: var(--text); border-color: #000; }

/* Hamburger */
.hamburger {
  display: none;
  background: none;
  border: none;
  font-size: 22px;
  cursor: pointer;
  padding: 4px 8px;
  color: var(--text);
  margin-left: auto;
}

@media (max-width: 640px) {
  .hamburger { display: block; }

  nav {
    display: none;
    position: absolute;
    top: 52px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid #000;
    flex-direction: column;
    gap: 0;
    padding: 8px 0;
    margin-left: 0;
  }

  nav.open { display: flex; }

  nav a {
    padding: 10px 20px;
    border: none;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
  }

  nav a:last-child { border-bottom: none; }
  nav a.active { font-weight: 600; color: var(--text); }
}

/* ── Main / Footer ── */
main {
  flex: 1;
  max-width: 720px;
  width: 100%;
  margin: 0 auto;
  padding: 40px 24px 60px;
}

footer {
  border-top: 1px solid var(--border);
  padding: 12px 24px;
  font-size: 12px;
  color: var(--muted);
  text-align: center;
}

footer a { color: var(--muted); }
footer a:hover { color: var(--text); }

/* ── Home ── */
.hero {
  text-align: center;
  padding: 16px 0 24px;
}

.hero .lead {
  font-size: 22px;
  font-weight: 300;
  line-height: 1.5;
  color: var(--text);
}

.video-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
}

.video-wrap video {
  max-height: 560px;
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.12);
}

.app-store img { height: 50px; }

/* ── Content pages ── */
.content-page h1 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 16px;
}

.content-page h2 {
  font-size: 20px;
  font-weight: 700;
  margin: 36px 0 16px;
  text-align: center;
}

.content-page h3 {
  font-size: 15px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin: 28px 0 8px;
}

.content-page p { margin-bottom: 14px; }
.content-page ul { margin: 8px 0 14px 20px; }
.content-page ul li { margin-bottom: 6px; }

.content-page hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 36px 0;
}

.lead {
  font-size: 17px;
  font-weight: 400;
  margin-bottom: 20px;
}

.muted { color: var(--muted); }
.small { font-size: 12px; }

.feature-step {
  margin-bottom: 24px;
}

.feature-step h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 6px;
}

/* Cards */
.card {
  border: 1px solid var(--border);
  padding: 24px;
  margin-bottom: 20px;
  border-radius: 4px;
}

.card-lead {
  font-size: 16px;
  font-weight: 500;
  text-align: center;
  margin-bottom: 16px !important;
}

.card-footer {
  text-align: center;
  margin-top: 16px !important;
  margin-bottom: 0 !important;
}

.card-tip {
  border-color: var(--blue);
  text-align: center;
}

.card-tip h3 {
  font-size: 17px;
  font-weight: 700;
  text-transform: none;
  letter-spacing: 0;
  color: var(--text);
  margin: 0 0 8px;
}

.badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 7px;
  background: var(--blue);
  color: #fff;
  border-radius: 10px;
  vertical-align: middle;
  margin-left: 4px;
}

.privacy-note {
  background: #f0f7ff;
  border: 1px solid #bcd6f0;
  padding: 16px 20px;
  border-radius: 4px;
  margin: 28px 0;
  font-size: 13px;
  line-height: 1.6;
}

.app-store-cta {
  text-align: center;
  margin-top: 32px;
}

.app-store-cta img { height: 50px; }

/* Feedback */
.feedback-wrap {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.feedback-wrap iframe { display: block; margin: 0 auto; }