/* TextSafe for Google Drive — ts.tmott.dev
   Material 3 theme seeded from Google Blue. Colour roles follow the M3 scheme used by Google's own apps;
   the remaining Google colours take their semantic roles: green = tertiary/success, yellow = warning, red = error.
   Type: Google Sans where installed, Roboto otherwise (M3 default). Shape: M3 scale (8 / 12 / 16 / 28, full for buttons). */
:root {
  --primary: #0b57d0;
  --on-primary: #ffffff;
  --primary-container: #d3e3fd;
  --on-primary-container: #041e49;
  --secondary: #00639b;
  --secondary-container: #c2e7ff;
  --on-secondary-container: #001d35;
  --tertiary: #146c2e;
  --tertiary-container: #c4eed0;
  --on-tertiary-container: #072711;
  --error: #b3261e;
  --error-container: #f9dedc;
  --warning: #e37400;
  --warning-container: #feefc3;
  --surface: #ffffff;
  --surface-dim: #d3dbe5;
  --surface-container-lowest: #ffffff;
  --surface-container-low: #f8fafd;
  --surface-container: #f0f4f9;
  --surface-container-high: #e9eef6;
  --surface-container-highest: #dde3ea;
  --on-surface: #1f1f1f;
  --on-surface-variant: #444746;
  --outline: #747775;
  --outline-variant: #c4c7c5;
  --inverse-surface: #303030;
  --inverse-on-surface: #f2f2f2;
  --inverse-primary: #a8c7fa;
  --google-blue: #4285f4;
  --google-green: #34a853;
  --google-yellow: #fbbc04;
  --google-red: #ea4335;
  --shape-sm: 8px;
  --shape-md: 12px;
  --shape-lg: 16px;
  --shape-xl: 28px;
  --elev-1: 0 1px 2px rgba(0, 0, 0, .3), 0 1px 3px 1px rgba(0, 0, 0, .15);
  --elev-2: 0 1px 2px rgba(0, 0, 0, .3), 0 2px 6px 2px rgba(0, 0, 0, .15);
  --font: "Google Sans Text", "Google Sans", "Roboto", "Helvetica Neue", Arial, system-ui, sans-serif;
  --display: "Google Sans", "Roboto Flex", "Roboto", "Helvetica Neue", Arial, system-ui, sans-serif;
  --mono: "Roboto Mono", ui-monospace, Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --primary: #a8c7fa;
    --on-primary: #062e6f;
    --primary-container: #0842a0;
    --on-primary-container: #d3e3fd;
    --secondary: #7fcfff;
    --secondary-container: #004a77;
    --on-secondary-container: #c2e7ff;
    --tertiary: #6dd58c;
    --tertiary-container: #0f5223;
    --on-tertiary-container: #c4eed0;
    --error: #f2b8b5;
    --error-container: #8c1d18;
    --warning: #fdd663;
    --warning-container: #5f4300;
    --surface: #131314;
    --surface-dim: #131314;
    --surface-container-lowest: #0e0e0e;
    --surface-container-low: #1b1b1b;
    --surface-container: #1e1f20;
    --surface-container-high: #282a2c;
    --surface-container-highest: #333537;
    --on-surface: #e3e3e3;
    --on-surface-variant: #c4c7c5;
    --outline: #8e918f;
    --outline-variant: #444746;
    --inverse-surface: #e3e3e3;
    --inverse-on-surface: #303030;
    --inverse-primary: #0b57d0;
    --elev-1: 0 1px 2px rgba(0, 0, 0, .5), 0 1px 3px 1px rgba(0, 0, 0, .3);
    --elev-2: 0 1px 2px rgba(0, 0, 0, .5), 0 2px 6px 2px rgba(0, 0, 0, .3);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; animation: none !important; } }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;               /* M3 body-large */
  line-height: 1.5;
  letter-spacing: .01em;
  color: var(--on-surface);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid var(--primary); outline-offset: 2px; border-radius: 4px; }
code { font-family: var(--mono); font-size: .88em; background: var(--surface-container-high); padding: .1em .4em; border-radius: 6px; color: var(--on-surface); }

/* M3 type scale */
h1, h2, h3 { font-family: var(--display); margin: 0; text-wrap: balance; color: var(--on-surface); }
h1 { font-size: clamp(36px, 5vw, 57px); line-height: 1.12; font-weight: 500; letter-spacing: -.01em; }   /* display-large */
h2 { font-size: clamp(28px, 3.2vw, 36px); line-height: 1.22; font-weight: 500; letter-spacing: 0; }         /* headline-large/medium */
h3 { font-size: 22px; line-height: 28px; font-weight: 500; letter-spacing: 0; }                                /* title-large */
p { margin: 0; }
.eyebrow { font-size: 14px; line-height: 20px; font-weight: 500; letter-spacing: .01em; color: var(--primary); margin-bottom: 12px; } /* label-large */
.skip { position: absolute; left: -999px; top: 8px; background: var(--primary); color: var(--on-primary); padding: 8px 12px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 8px; }

/* ---- buttons (M3: 40px, full shape, label-large) ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 44px; padding: 0 24px; border-radius: 999px;
  font-family: var(--font); font-size: 14px; font-weight: 500; letter-spacing: .01em;
  text-decoration: none; border: 1px solid transparent;
  transition: box-shadow .15s ease, background .15s ease;
}
.btn-sm { height: 40px; padding: 0 20px; }
.btn-mint { background: var(--primary); color: var(--on-primary); }               /* filled */
.btn-mint:hover { box-shadow: var(--elev-1); filter: brightness(1.06); }
.btn-ghost { background: transparent; color: var(--primary); border-color: var(--outline); }   /* outlined */
.btn-ghost:hover { background: color-mix(in srgb, var(--primary) 8%, transparent); }
.btn-indigo { background: var(--primary); color: var(--on-primary); }
.btn-indigo[aria-disabled="true"] { background: color-mix(in srgb, var(--on-surface) 12%, transparent); color: color-mix(in srgb, var(--on-surface) 38%, transparent); cursor: not-allowed; }
.btn-ghost-dark { background: transparent; color: var(--primary); border-color: var(--outline); }
.btn-ghost-dark:hover { background: color-mix(in srgb, var(--primary) 8%, transparent); }

/* ---- top app bar ---- */
.nav {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 28px;
  min-height: 64px; padding: 8px clamp(16px, 4vw, 40px);
  background: var(--surface-container); color: var(--on-surface);
}
.nav .brand { display: flex; align-items: center; gap: 12px; color: var(--on-surface); text-decoration: none; font-family: var(--display); font-weight: 500; font-size: 22px; }
.nav .brand img { border-radius: 8px; }
.nav nav { display: flex; gap: 4px; margin-left: auto; }
.nav nav a { color: var(--on-surface-variant); text-decoration: none; font-weight: 500; font-size: 14px; padding: 10px 14px; border-radius: 999px; }
.nav nav a:hover { background: color-mix(in srgb, var(--on-surface) 8%, transparent); color: var(--on-surface); }
@media (max-width: 800px) { .nav nav { display: none; } .nav .btn { margin-left: auto; } }

/* ---- hero: surface-container-low with a primary-container panel behind the screenshot ---- */
.hero {
  background: var(--surface-container-low);
  color: var(--on-surface);
  display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: clamp(32px, 6vw, 80px); align-items: center;
  padding: clamp(48px, 8vw, 104px) clamp(20px, 6vw, 96px) clamp(48px, 7vw, 96px);
}
.hero .eyebrow { color: var(--primary); }
.hero .lede { font-size: clamp(17px, 1.5vw, 20px); line-height: 1.5; color: var(--on-surface-variant); max-width: 56ch; margin-top: 20px; }
.hero .lede strong { color: var(--on-surface); font-weight: 500; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.trust { list-style: none; margin: 28px 0 0; padding: 0; display: grid; gap: 8px; color: var(--on-surface-variant); font-size: 14px; }
.trust code { background: var(--surface-container-highest); }
.trust .dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--tertiary); margin-right: 8px; vertical-align: middle; }
.hero-shot { margin: 0; justify-self: center; width: 100%; max-width: 460px; padding: clamp(20px, 3vw, 40px); background: var(--primary-container); border-radius: var(--shape-xl); }
.hero-shot img { width: 100%; max-width: 380px; margin: 0 auto; border-radius: var(--shape-lg); box-shadow: var(--elev-2); }
.hero-shot figcaption { margin-top: 16px; font-size: 13px; color: var(--on-primary-container); text-align: center; }
@media (max-width: 900px) { .hero { grid-template-columns: 1fr; } .hero-shot { max-width: 420px; } }

/* ---- Android requirement strip (tertiary container) ---- */
.platform {
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
  padding: 16px clamp(20px, 6vw, 96px);
  background: var(--tertiary-container); color: var(--on-tertiary-container);
  font-size: 15px;
}
.platform img { flex: 0 0 auto; }
.platform strong { font-weight: 500; }
.platform .sep { opacity: .4; }

/* ---- sections ---- */
.section { padding: clamp(56px, 8vw, 104px) clamp(20px, 6vw, 96px); background: var(--surface); }
.section-tint { background: var(--surface-container-low); }
.section-head { max-width: 62ch; margin-bottom: 36px; }
.section-head p:not(.eyebrow) { color: var(--on-surface-variant); margin-top: 14px; font-size: 18px; }
.two-col { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(24px, 4vw, 56px); align-items: start; }
@media (max-width: 900px) { .two-col { grid-template-columns: 1fr; } }

.tree {
  margin: 0; padding: 22px 24px; overflow-x: auto;
  background: var(--inverse-surface); color: var(--inverse-on-surface); border-radius: var(--shape-lg);
  font-family: var(--mono); font-size: 13.5px; line-height: 1.75;
}
.tree .d { color: var(--inverse-primary); font-weight: 500; }
.tree .f { color: var(--inverse-on-surface); }
.tree .c { color: color-mix(in srgb, var(--inverse-on-surface) 60%, transparent); }

.shot { margin: 0; }
.shot img { border-radius: var(--shape-lg); border: 1px solid var(--outline-variant); background: var(--surface-container-lowest); box-shadow: var(--elev-1); }
.shot figcaption { margin-top: 12px; font-size: 14px; color: var(--on-surface-variant); }

/* ---- cards (M3 outlined) ---- */
.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
@media (max-width: 1000px) { .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { .grid { grid-template-columns: 1fr; } }
.card { background: var(--surface-container-lowest); border: 1px solid var(--outline-variant); border-radius: var(--shape-md); padding: 24px; }
.card .icon {
  width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center;
  background: var(--primary-container); color: var(--on-primary-container); font-size: 20px; font-weight: 500; margin-bottom: 16px;
}
.card h3 { margin-bottom: 8px; }
.card p { color: var(--on-surface-variant); font-size: 15px; line-height: 1.5; }

.steps { list-style: none; margin: 0 0 44px; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
@media (max-width: 800px) { .steps { grid-template-columns: 1fr; } }
.steps li { background: var(--surface-container-lowest); border: 1px solid var(--outline-variant); border-radius: var(--shape-md); padding: 24px; }
.steps .num { display: inline-grid; place-items: center; width: 32px; height: 32px; border-radius: 50%; background: var(--tertiary-container); color: var(--on-tertiary-container); font-weight: 500; margin-bottom: 14px; }
.steps h3 { margin-bottom: 8px; }
.steps p { color: var(--on-surface-variant); font-size: 15px; }

.gallery { display: grid; grid-template-columns: minmax(0, 380px) minmax(0, 1fr); gap: 24px; align-items: start; }
.gallery-col { display: grid; gap: 24px; }
@media (max-width: 900px) { .gallery { grid-template-columns: 1fr; } }

.install { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
@media (max-width: 760px) { .install { grid-template-columns: 1fr; } }
.install-card { background: var(--surface-container-lowest); border: 1px solid var(--outline-variant); border-radius: var(--shape-md); padding: 24px; display: grid; gap: 12px; align-content: start; }
.install-card p { color: var(--on-surface-variant); font-size: 15px; }
.install-card .btn { justify-self: start; margin-top: 4px; }

/* ---- privacy (primary container) ---- */
.privacy { background: var(--primary-container); color: var(--on-primary-container); }
.privacy h2 { color: var(--on-primary-container); }
.privacy-inner { display: grid; grid-template-columns: 56px minmax(0, 1fr); gap: 28px; max-width: 900px; }
@media (max-width: 640px) { .privacy-inner { grid-template-columns: 1fr; } }
.privacy-mark { color: var(--on-primary-container); display: block; }
.privacy .eyebrow { color: var(--on-primary-container); opacity: .8; }
.checks { list-style: none; margin: 20px 0 0; padding: 0; display: grid; gap: 12px; font-size: 16px; max-width: 64ch; }
.checks li { padding-left: 28px; position: relative; }
.checks li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--tertiary); font-weight: 700; }
.checks code { background: color-mix(in srgb, var(--on-primary-container) 10%, transparent); color: inherit; }
.privacy .link { display: inline-flex; align-items: center; height: 40px; padding: 0 16px; margin-top: 20px; border-radius: 999px; color: var(--on-primary-container); font-weight: 500; text-decoration: none; border: 1px solid color-mix(in srgb, var(--on-primary-container) 40%, transparent); }
.privacy .link:hover { background: color-mix(in srgb, var(--on-primary-container) 8%, transparent); }

/* ---- FAQ (M3 list) ---- */
.faq { max-width: 760px; display: grid; gap: 8px; }
.faq details { background: var(--surface-container-low); border-radius: var(--shape-md); padding: 0 20px; }
.faq summary { cursor: pointer; font-weight: 500; padding: 16px 0; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--primary); font-weight: 500; }
.faq details[open] summary::after { content: "–"; }
.faq details p { color: var(--on-surface-variant); padding: 0 0 18px; font-size: 15px; }

/* ---- footer ---- */
.footer { background: var(--surface-container-high); color: var(--on-surface-variant); padding: 40px clamp(20px, 6vw, 96px); }
.footer-inner { display: grid; gap: 18px; }
.footer .brand { display: flex; align-items: center; gap: 10px; color: var(--on-surface); font-weight: 500; }
.footer .brand img { border-radius: 6px; }
.footer nav { display: flex; flex-wrap: wrap; gap: 4px; }
.footer nav a { color: var(--on-surface-variant); text-decoration: none; font-weight: 500; font-size: 14px; padding: 8px 12px; border-radius: 999px; }
.footer nav a:hover { background: color-mix(in srgb, var(--on-surface) 8%, transparent); color: var(--on-surface); }
.footer .fine { font-size: 13px; max-width: 70ch; }
.footer .fine a { color: var(--primary); }