:root {
  --bg: #ffffff;
  --panel: #eef5f1;
  --text: #141516;
  --muted: #6b7470;
  --line: #e7ebe9;
  --accent: #047857;
  --bezel: #141516;
  --green: #c9f0dc;
  --yellow: #f6eba8;
  --blue: #d3e3fb;
  --pink: #fbd5dc;
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

h1,
h2,
h3 {
  font-weight: 500;
  letter-spacing: -0.025em;
}

/* Navigation */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: 1080px;
  margin: 0 auto;
  padding: 20px 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 600;
  font-size: 18px;
  text-decoration: none;
}

.nav nav {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 14px;
}
.nav nav a {
  color: var(--muted);
  text-decoration: none;
}
.nav nav a:hover {
  color: var(--text);
}
.nav .nav-cta {
  color: var(--text);
  background: var(--panel);
  padding: 6px 14px;
  border-radius: 999px;
}

/* Phones */
.phone {
  position: relative;
  flex: none;
  width: 260px;
  padding: 9px;
  border-radius: 46px;
  background: var(--bezel);
  box-shadow:
    0 0 0 1px rgb(255 255 255 / 0.08) inset,
    0 24px 48px -24px rgb(0 0 0 / 0.35);
}

.phone img {
  border-radius: 37px;
  width: 100%;
}

.phone::after {
  content: "";
  position: absolute;
  top: 18px;
  left: 50%;
  width: 28%;
  height: 22px;
  transform: translateX(-50%);
  border-radius: 999px;
  background: #000;
}

/* Hero */
.hero {
  text-align: center;
  padding: 64px 16px 0;
  overflow: hidden;
}

h1 {
  font-size: clamp(40px, 7vw, 68px);
  line-height: 1.05;
  margin: 0 auto 16px;
}

.lead {
  max-width: 520px;
  margin: 0 auto 28px;
  color: var(--muted);
  font-size: 18px;
}

.stores {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

.store {
  background: var(--text);
  color: var(--bg);
  border-radius: 10px;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 600;
}

.carousel {
  display: flex;
  justify-content: center;
  gap: 28px;
  margin: 64px -400px 0;
}

.carousel .phone:nth-child(3) {
  transform: translateY(-24px);
}

/* Pillars */
.pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 32px;
  max-width: 900px;
  margin: 0 auto;
  padding: 88px 16px 24px;
}

.pillars p {
  color: var(--muted);
  font-size: 15px;
  margin: 14px 0 0;
}

/* Icons: a line icon over a soft colour blob */
.ico {
  position: relative;
  display: inline-block;
  width: 36px;
  height: 36px;
  color: var(--text);
}

.ico::before {
  content: "";
  position: absolute;
  right: -6px;
  top: -4px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--blob);
}

.ico svg {
  position: relative;
  width: 100%;
  height: 100%;
}

.ico-green {
  --blob: var(--green);
}
.ico-yellow {
  --blob: var(--yellow);
}
.ico-blue {
  --blob: var(--blue);
}
.ico-pink {
  --blob: var(--pink);
}

/* Features */
.feature {
  max-width: 1080px;
  margin: 0 auto;
  padding: 112px 16px 0;
  text-align: center;
}

h2 {
  font-size: clamp(30px, 4.5vw, 40px);
  line-height: 1.15;
  margin: 0 0 14px;
}

.feature > p {
  max-width: 540px;
  margin: 0 auto;
  color: var(--muted);
  font-size: 16px;
}

.panel {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-top: 48px;
  padding: 72px 16px;
  border-radius: 28px;
  background: var(--panel);
  overflow: hidden;
}

.panel .phone {
  width: min(280px, 70vw);
}

/* Privacy tiles */
.tiles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-top: 48px;
  text-align: left;
}

.tile {
  background: var(--panel);
  border-radius: 24px;
  padding: 32px 28px;
}
.tile h3 {
  font-size: 18px;
  margin: 20px 0 4px;
}
.tile p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

/* More features */
.more {
  max-width: 1080px;
  margin: 0 auto;
  padding: 128px 16px 0;
  text-align: center;
}

.grid {
  list-style: none;
  margin: 56px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  row-gap: 48px;
  text-align: left;
}

.grid li {
  padding: 0 28px;
  border-left: 1px solid var(--line);
}
.grid h3 {
  font-size: 17px;
  margin: 18px 0 4px;
}
.grid p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

/* Closing call to action */
.cta {
  max-width: 1080px;
  margin: 0 auto;
  padding: 144px 16px 0;
  text-align: center;
}
.cta h2 {
  font-size: clamp(34px, 5.5vw, 52px);
  margin: 0;
}

/* FAQ */
.faq-home {
  max-width: 760px;
  margin: 0 auto;
  padding: 128px 16px 0;
  text-align: center;
}

.faq-list {
  margin-top: 40px;
  text-align: left;
  border-top: 1px solid var(--line);
}

details {
  border-bottom: 1px solid var(--line);
}

summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 20px 0;
  font-size: 17px;
  font-weight: 500;
  cursor: pointer;
  list-style: none;
}

summary::-webkit-details-marker {
  display: none;
}

/* A plus drawn with two bars, so it sits exactly in the middle of the circle,
   unlike a "+" glyph that follows the font's baseline. */
summary::after {
  content: "";
  flex: none;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background:
    linear-gradient(var(--muted), var(--muted)) center / 12px 1.5px no-repeat,
    linear-gradient(var(--muted), var(--muted)) center / 1.5px 12px no-repeat,
    var(--panel);
  transition: transform 0.2s;
}

details[open] summary::after {
  transform: rotate(45deg);
}

details p {
  margin: -4px 0 22px;
  padding-right: 52px;
  color: var(--muted);
  font-size: 15px;
}

.more-link {
  display: inline-block;
  margin-top: 32px;
  padding: 10px 20px;
  border-radius: 999px;
  background: var(--panel);
  color: var(--text);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
}

.faq-page {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 16px 0;
  text-align: center;
}
.faq-page .lead {
  margin-bottom: 32px;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

.chips a {
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--panel);
  color: var(--text);
  font-size: 14px;
  text-decoration: none;
}

.faq-group {
  padding-top: 72px;
  scroll-margin-top: 16px;
}
.faq-group h2 {
  font-size: 26px;
  text-align: left;
  margin: 0;
}
.faq-group .faq-list {
  margin-top: 16px;
}

/* Footer */
.foot {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 32px;
  max-width: 1080px;
  margin: 0 auto;
  padding: 88px 16px 48px;
  font-size: 14px;
  color: var(--muted);
}

.foot h4 {
  margin: 0 0 10px;
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
}
.foot a:not(.brand) {
  display: block;
  color: var(--muted);
  text-decoration: none;
  margin-bottom: 6px;
}
.foot a:hover {
  color: var(--text);
}
.foot p {
  margin: 12px 0 0;
}
.foot .copy {
  grid-column: 1 / -1;
  border-top: 1px solid var(--line);
  padding-top: 24px;
  margin: 0;
}

@media (max-width: 720px) {
  .nav nav a:first-child {
    display: none;
  }
  .carousel {
    gap: 16px;
    margin-top: 48px;
  }
  .carousel .phone {
    width: 200px;
    border-radius: 36px;
  }
  .carousel .phone img {
    border-radius: 28px;
  }
  .panel {
    gap: 16px;
    padding: 48px 16px;
  }
  .panel-duo .phone {
    width: calc(50% - 8px);
    padding: 6px;
    border-radius: 30px;
  }
  .panel-duo .phone img {
    border-radius: 24px;
  }
  .panel-duo .phone::after {
    top: 12px;
    height: 14px;
  }
  .grid li {
    padding: 0 0 0 20px;
  }
  .foot {
    grid-template-columns: 1fr 1fr;
  }
  .foot > div:first-child {
    grid-column: 1 / -1;
  }
}

/* Privacy policy */
.doc {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 16px 24px;
}
.doc .brand {
  margin-bottom: 32px;
}
.doc h1 {
  font-size: clamp(32px, 7vw, 44px);
  max-width: none;
}
.doc h2 {
  font-size: 22px;
  margin: 36px 0 8px;
}
.doc p,
.doc li {
  color: var(--muted);
}
.doc strong {
  color: var(--text);
}