:root {
  --primary: #4F46E5;
  --accent: #10B981;
  --ink: #0F172A;
  --subink: #475569;
  --bg: #FFFFFF;
  --bg-soft: #F6F8FF;
  --border: rgba(15, 23, 42, .08);
  --shadow: 0 8px 24px rgba(2, 6, 23, .08);
  --radius: 16px;
  --focus: 0 0 0 3px rgba(16, 185, 129, .35);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0B1020;
    --bg-soft: #0F172A;
    --ink: #E5E7EB;
    --subink: #9CA3AF;
    --border: rgba(148, 163, 184, .18);
    --shadow: 0 12px 28px rgba(0, 0, 0, .35);
  }
}

* {
  box-sizing: border-box
}

html,
body {
  height: 100%
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Inter, "SF Pro", Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}

a {
  color: var(--primary);
  text-decoration: none
}

a:focus {
  outline: none;
  box-shadow: var(--focus);
  border-radius: 8px;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px
}

.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden
}

.skip-link:focus {
  left: 20px;
  top: 20px;
  width: auto;
  height: auto;
  background: #fff;
  padding: 8px 12px;
  border-radius: 8px;
  box-shadow: var(--focus)
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .7);
  backdrop-filter: saturate(180%) blur(18px);
  border-bottom: 1px solid var(--border)
}

@media (prefers-color-scheme: dark) {
  .site-header {
    background: rgba(11, 16, 32, .6)
  }
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: 64px
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--ink)
}

.brand img {
  border-radius: 10px;
  box-shadow: var(--shadow)
}

.brand-name {
  letter-spacing: .2px
}

.site-nav {
  margin-left: auto
}

.site-nav ul {
  display: flex;
  gap: 16px;
  list-style: none;
  margin: 0;
  padding: 0
}

.site-nav a {
  display: block;
  padding: 10px 12px;
  border-radius: 12px;
  color: var(--ink)
}

.site-nav a:focus,
.site-nav a:hover {
  background: var(--bg-soft)
}

.header-cta .btn {
  margin-left: 6px
}

/* Mobile nav */
.nav-toggle {
  display: none;
  background: none;
  border: 0;
  padding: 8px;
  border-radius: 12px
}

.nav-toggle:focus {
  box-shadow: var(--focus)
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  margin: 4px 0;
  border-radius: 2px
}

@media (max-width: 900px) {
  .nav-toggle {
    display: block
  }

  .site-nav {
    display: none
  }

  .site-nav.open {
    display: block;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border)
  }

  .site-nav ul {
    flex-direction: column;
    padding: 12px
  }

  .header-cta {
    display: none
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border-radius: 14px;
  border: 1px solid transparent;
  font-weight: 600
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: var(--shadow)
}

.btn-primary:hover {
  opacity: .95
}

.btn-ghost {
  border-color: var(--border);
  color: var(--ink);
  background: transparent
}

.btn-ghost:hover {
  background: var(--bg-soft)
}

/* Hero */
.hero {
  padding: 48px 0
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 24px;
  align-items: center
}

.hero h1 {
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.2;
  margin: .2em 0
}

.subhead {
  color: var(--subink)
}

.cta-row {
  display: flex;
  gap: 12px;
  margin-top: 16px
}

.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
  padding: 0;
  list-style: none
}

.badges li {
  font-size: 14px;
  color: var(--subink);
  border: 1px solid var(--border);
  padding: 8px 10px;
  border-radius: 999px
}

.phone-card {
  border-radius: 28px;
  padding: 24px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  justify-content: center
}

.blur-bg {
  background: radial-gradient(1200px 400px at 50% -20%, rgba(79, 70, 229, .18), transparent 60%), var(--bg-soft)
}

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

/* Sections */
.how-it-helps {
  padding: 32px 0
}

.how-it-helps h2,
.privacy-design h2,
.screenshots-preview h2,
.cta-final h2 {
  margin-bottom: 12px
}

.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px
}

.card {
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--bg);
  box-shadow: var(--shadow)
}

.card h3 {
  margin: .2em 0
}

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

@media (max-width: 560px) {
  .cards {
    grid-template-columns: 1fr
  }
}

.privacy-design {
  padding: 24px 0
}

.screenshot-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px
}

.screenshot-grid figure {
  margin: 0;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--bg);
  box-shadow: var(--shadow);
  text-align: center
}

.screenshot-grid img {
  max-width: 100%;
  height: auto;
  border-radius: 12px
}

.dark-row-head {
  margin-top: 24px
}

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

@media (max-width: 560px) {
  .screenshot-grid {
    grid-template-columns: 1fr
  }
}

.cta-final {
  padding: 32px 0;
  text-align: center
}

/* Pages */
.page-head {
  padding: 32px 0 8px
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding-bottom: 24px
}

.feature-block {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 20px;
  align-items: center;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--bg);
  box-shadow: var(--shadow)
}

@media (max-width: 700px) {
  .feature-block {
    grid-template-columns: 1fr
  }
}

.tech-notes ul {
  margin-top: 8px
}

.download-section {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-bottom: 40px
}

.store-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: 14px;
  background: #000;
  color: #fff;
  width: fit-content
}

.beta summary {
  cursor: pointer
}

.sysreq {
  color: var(--subink)
}

.faq details {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px 14px;
  margin: 10px 0;
  background: var(--bg);
  box-shadow: var(--shadow)
}

.faq summary {
  font-weight: 600;
  cursor: pointer
}

.contact-form {
  display: grid;
  gap: 10px;
  max-width: 560px
}

.contact-form input,
.contact-form textarea {
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-soft);
  color: var(--ink)
}

.contact-form button {
  justify-self: start
}

.legal h2 {
  margin-top: 0
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  margin-top: 32px
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px
}

.footer-links,
.social {
  display: flex;
  gap: 12px;
  list-style: none;
  margin: 0;
  padding: 0
}

@media (max-width: 640px) {
  .footer-inner {
    flex-direction: column;
    align-items: flex-start
  }
}

/* Visually hidden */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0
}

.caption {
  font-size: 8px;
  color: #434343 !important
}

.feature-media {
  display: flex;
  align-items: center;   /* vertical center */
  justify-content: center; /* horizontal center */
  overflow: hidden;      /* optional, trims if the image is larger */
}

.feature-media img {
  height: auto;
  display: block;        /* no inline gaps */
  object-fit: cover;
  height: 100%;
  width: 100%;
}