:root{
  /* neutrals */
  --bg:#fafaf8;
  --surface:#ffffff;
  --surface-2:#f4f4f2;
  --ink:#0e0e10;
  --ink-2:#3a3a3f;
  --ink-3:#6e6e73;
  --ink-4:#98989e;
  --line:#e6e6e4;
  --line-strong:#d8d8d4;

  /* accent */
  --accent:#e14634;
  --accent-d:#c13321;
  --accent-ink:#ffffff;

  /* type */
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", Helvetica, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  /* radius */
  --r:14px;
  --r-sm:10px;
}

[data-theme="dark"]{
  --bg:#0a0a0c;
  --surface:#141416;
  --surface-2:#1c1c1f;
  --ink:#f5f5f3;
  --ink-2:#cfcfcd;
  --ink-3:#8e8e93;
  --ink-4:#6e6e73;
  --line:#26262a;
  --line-strong:#36363b;
  --accent:#ef5a48;
  --accent-d:#d94232;
}

*,*::before,*::after{box-sizing:border-box;}
[hidden]{display:none !important;}

html,body{
  margin:0; padding:0;
  background:var(--bg); color:var(--ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.55;
  font-feature-settings:"ss01","cv11";
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;
  min-height:100vh;
}
*{-webkit-tap-highlight-color:transparent;}
button{font:inherit; color:inherit; cursor:pointer; border:none; background:none;}
a{color:inherit; text-decoration:none;}
h1,h2,h3,h4{font-family:var(--font-display); margin:0; letter-spacing:-0.022em;}
p{margin:0;}
b,strong{font-weight:600; color:var(--ink);}

/* =========================================================
   HEADER
   ========================================================= */
.hd{
  display:flex; align-items:center; justify-content:space-between;
  padding:18px 28px;
  border-bottom:1px solid var(--line);
  background:color-mix(in srgb, var(--bg) 75%, transparent);
  backdrop-filter:saturate(180%) blur(20px);
  -webkit-backdrop-filter:saturate(180%) blur(20px);
  position:sticky; top:0; z-index:50;
}
.brand{display:inline-flex; align-items:center; gap:10px;}
.brand-logo{
  width:28px; height:28px;
  border-radius:7px;
  background:var(--surface-2);
  padding:3px;
  object-fit:contain;
  flex-shrink:0;
}
[data-theme="dark"] .brand-logo{background:var(--ink); padding:4px;}
.brand-name{
  font-family:var(--font-display);
  font-weight:600;
  font-size:15px;
  letter-spacing:-0.015em;
  color:var(--ink);
}
.theme{
  width:36px; height:36px;
  border-radius:9px;
  font-size:15px;
  color:var(--ink-3);
  transition:background .15s, color .15s;
}
.theme:hover{background:var(--surface-2); color:var(--ink);}

/* =========================================================
   LAYOUT
   ========================================================= */
main{
  max-width:640px;
  margin:0 auto;
  padding:72px 28px 96px;
}

/* =========================================================
   HERO
   ========================================================= */
.hero{text-align:center; margin-bottom:56px;}
.eyebrow{
  font-size:11px;
  font-weight:600;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--accent);
  margin-bottom:18px;
}
.hero h1{
  font-family:var(--font-display);
  font-size:clamp(40px, 6vw, 56px);
  font-weight:700;
  letter-spacing:-0.035em;
  line-height:1.04;
  margin:0 0 20px;
}
.lede{
  font-size:19px;
  line-height:1.5;
  color:var(--ink-2);
  margin:0 auto 22px;
  max-width:460px;
  letter-spacing:-0.01em;
}
.trust{
  font-size:12.5px;
  color:var(--ink-4);
  letter-spacing:0.01em;
  margin:0;
}

/* =========================================================
   DOWNLOADS
   ========================================================= */
.downloads{
  display:flex;
  flex-direction:column;
  gap:10px;
  margin-bottom:22px;
}

/* Wide card (Windows) */
.dl{
  display:grid;
  grid-template-columns:auto 1fr;
  grid-template-areas:
    "icon os"
    "icon ver";
  column-gap:18px;
  row-gap:2px;
  align-items:center;
  padding:20px 24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r);
  color:var(--ink);
  text-decoration:none !important;
  transition:border-color .18s, background .18s, transform .15s;
  position:relative;
}
.dl .dl-icon{grid-area:icon; align-self:center;}
.dl .dl-os{grid-area:os; align-self:end;}
.dl .dl-ver{grid-area:ver; align-self:start;}
.dl:hover{
  border-color:var(--line-strong);
  transform:translateY(-1px);
}

/* Icon */
.dl-icon{
  display:flex; align-items:center; justify-content:center;
  width:48px; height:48px;
  border-radius:12px;
  background:var(--surface-2);
  color:var(--ink-2);
  flex-shrink:0;
  transition:background .18s, color .18s;
}
.dl-icon svg{width:26px; height:26px;}
.dl:hover .dl-icon{color:var(--ink);}

.dl-os{
  font-family:var(--font-display);
  font-size:19px;
  font-weight:600;
  letter-spacing:-0.02em;
  color:var(--ink);
  line-height:1.1;
}
.dl-ver{
  font-size:14px;
  color:var(--ink-3);
  letter-spacing:-0.005em;
  line-height:1.4;
  margin-top:3px;
}

/* Row of 2 half-width cards */
.dl-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:10px;
}

/* Half cards (Mac variants) */
.dl-half{
  grid-template-columns:auto 1fr;
  grid-template-areas:
    "icon tag"
    "os   os"
    "ver  ver";
  column-gap:12px;
  row-gap:2px;
  align-items:center;
  padding:18px 20px;
}
.dl-half .dl-icon{
  grid-area:icon;
  width:36px; height:36px;
  border-radius:9px;
}
.dl-half .dl-icon svg{width:20px; height:20px;}
.dl-half .dl-tag{
  grid-area:tag;
  justify-self:end;
  align-self:center;
  display:inline-block;
  font-size:10px;
  font-weight:700;
  letter-spacing:0.12em;
  text-transform:uppercase;
  color:var(--ink-4);
  padding:3px 8px;
  border:1px solid var(--line-strong);
  border-radius:999px;
}
.dl-half .dl-os{
  grid-area:os;
  font-size:17px;
  margin-top:14px;
  align-self:end;
}
.dl-half .dl-ver{
  grid-area:ver;
  font-size:13px;
  color:var(--ink-3);
  margin-top:2px;
  align-self:start;
}

/* Primary (recommended) variant */
.dl.primary{
  background:var(--ink);
  border-color:var(--ink);
  color:#fff;
}
[data-theme="dark"] .dl.primary{
  background:var(--accent);
  border-color:var(--accent);
}
.dl.primary .dl-os{color:#fff;}
.dl.primary .dl-ver{color:rgba(255,255,255,0.72);}
.dl.primary .dl-tag{
  color:#fff;
  border-color:rgba(255,255,255,0.3);
}
.dl.primary .dl-icon{
  background:rgba(255,255,255,0.12);
  color:#fff;
}
.dl.primary:hover{background:var(--ink-2);}
[data-theme="dark"] .dl.primary:hover{background:var(--accent-d);}

/* =========================================================
   DISCLOSURE (Mac help)
   ========================================================= */
.disc{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r);
  overflow:hidden;
}
.disc summary{
  padding:16px 22px;
  font-size:14.5px;
  color:var(--ink-2);
  cursor:pointer;
  list-style:none;
  user-select:none;
  display:flex; align-items:center;
  transition:color .15s;
}
.disc summary::-webkit-details-marker{display:none;}
.disc summary::after{
  content:"";
  margin-left:auto;
  width:8px; height:8px;
  border-right:1.5px solid var(--ink-4);
  border-bottom:1.5px solid var(--ink-4);
  transform:rotate(45deg) translate(-2px,-2px);
  transition:transform .25s;
  flex-shrink:0;
}
.disc[open] summary::after{transform:rotate(225deg) translate(-2px,-2px);}
.disc summary:hover{color:var(--ink);}
.disc-body{
  padding:2px 22px 20px;
  font-size:14px;
  color:var(--ink-2);
  border-top:1px solid var(--line);
  padding-top:16px;
}
.disc-body p{margin:0 0 10px;}
.disc-body ul{padding-left:20px; margin:8px 0;}
.disc-body li{margin-bottom:4px;}
.disc-body a{color:var(--accent); font-weight:500; border-bottom:1px solid transparent; transition:border-color .15s;}
.disc-body a:hover{border-bottom-color:var(--accent);}
.disc-note{font-size:12.5px; color:var(--ink-4); margin-top:10px;}

/* =========================================================
   DIVIDER
   ========================================================= */
.rule{
  border:none;
  border-top:1px solid var(--line);
  margin:72px auto;
  max-width:80px;
}

/* =========================================================
   STEPS
   ========================================================= */
.steps h2{
  font-size:28px;
  font-weight:700;
  letter-spacing:-0.028em;
  margin:0 0 32px;
  text-align:center;
}
.steps ol{
  list-style:none;
  padding:0;
  margin:0;
  display:flex;
  flex-direction:column;
  gap:28px;
}
.steps li{
  display:grid;
  grid-template-columns:44px 1fr;
  gap:20px;
  align-items:flex-start;
}
.steps .n{
  width:34px; height:34px;
  border-radius:50%;
  background:var(--surface);
  border:1px solid var(--line-strong);
  color:var(--ink);
  font-family:var(--font-display);
  font-weight:600;
  font-size:15px;
  display:flex; align-items:center; justify-content:center;
  letter-spacing:-0.01em;
}
.steps h3{
  font-size:17px;
  font-weight:600;
  letter-spacing:-0.018em;
  margin:0 0 6px;
}
.steps p{
  font-size:14.5px;
  color:var(--ink-2);
  line-height:1.55;
}

/* =========================================================
   FAQ
   ========================================================= */
.faq h2{
  font-size:28px;
  font-weight:700;
  letter-spacing:-0.028em;
  margin:0 0 24px;
  text-align:center;
}
.faq details{
  border-bottom:1px solid var(--line);
}
.faq details:last-of-type{border-bottom:none;}
.faq summary{
  padding:18px 4px;
  font-size:15px;
  font-weight:500;
  color:var(--ink);
  cursor:pointer;
  list-style:none;
  user-select:none;
  display:flex; align-items:center;
  transition:color .15s;
  letter-spacing:-0.012em;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{
  content:"";
  margin-left:auto;
  width:7px; height:7px;
  border-right:1.5px solid var(--ink-3);
  border-bottom:1.5px solid var(--ink-3);
  transform:rotate(45deg) translate(-2px,-2px);
  transition:transform .25s, border-color .15s;
  flex-shrink:0;
}
.faq details[open] summary::after{transform:rotate(225deg) translate(-2px,-2px);}
.faq summary:hover::after{border-color:var(--ink);}
.faq p{
  padding:0 4px 18px;
  font-size:14.5px;
  color:var(--ink-2);
  line-height:1.6;
  letter-spacing:-0.005em;
}

/* =========================================================
   FOOTER
   ========================================================= */
footer{
  padding:36px 28px;
  border-top:1px solid var(--line);
  text-align:center;
  font-size:13px;
  color:var(--ink-3);
  display:flex; gap:8px; justify-content:center; align-items:center;
  flex-wrap:wrap;
}
footer a{
  color:var(--ink-2);
  transition:color .15s;
}
footer a:hover{color:var(--accent);}

/* =========================================================
   RESPONSIVE
   ========================================================= */

/* Tablet */
@media (max-width:820px){
  main{padding:56px 24px 80px;}
  .hero{margin-bottom:48px;}
  .rule{margin:56px auto;}
}

/* Phone (≤560px) */
@media (max-width:560px){
  .hd{padding:14px 20px;}
  main{padding:48px 20px 64px; max-width:100%;}
  .hero{margin-bottom:42px;}
  .eyebrow{font-size:10.5px; letter-spacing:0.16em; margin-bottom:14px;}
  .hero h1{font-size:clamp(34px, 10vw, 44px);}
  .lede{font-size:17px; margin-bottom:18px;}
  .trust{font-size:12px;}

  /* Windows card compact on narrow phones */
  .dl:not(.dl-half){
    column-gap:14px;
    padding:16px 18px;
  }
  .dl:not(.dl-half) .dl-icon{width:40px; height:40px;}
  .dl:not(.dl-half) .dl-icon svg{width:22px; height:22px;}
  .dl:not(.dl-half) .dl-os{font-size:17px;}
  .dl:not(.dl-half) .dl-ver{font-size:13px;}

  /* Mac halves — stay side by side */
  .dl-row{gap:8px;}
  .dl-half{padding:14px 14px 16px;}
  .dl-half .dl-tag{font-size:9px; padding:2px 7px;}
  .dl-half .dl-os{font-size:15px; margin-top:12px;}
  .dl-half .dl-ver{font-size:12.5px;}

  .rule{margin:48px auto;}

  .steps h2, .faq h2{font-size:24px;}
  .steps ol{gap:22px;}
  .steps li{grid-template-columns:36px 1fr; gap:14px;}
  .steps .n{width:30px; height:30px; font-size:13px;}
  .steps h3{font-size:16px;}
  .steps p{font-size:14px;}

  .faq summary{font-size:14.5px; padding:16px 2px;}
  .faq p{font-size:14px; padding:0 2px 16px;}

  .disc summary{padding:14px 18px; font-size:14px;}
  .disc-body{padding:2px 18px 16px;}

  footer{padding:28px 20px; font-size:12.5px;}
}

/* Very small phones (≤360px) */
@media (max-width:360px){
  .hd{padding:12px 16px;}
  main{padding:36px 16px 48px;}
  .hero h1{font-size:32px;}
  .lede{font-size:16px;}
  .dl{padding:16px 16px;}
  .dl-os{font-size:17px;}
  .dl-arch{font-size:10px;}
}

/* Touch devices — larger tap targets */
@media (pointer:coarse){
  .faq summary, .disc summary{min-height:52px;}
  .theme{width:40px; height:40px;}
  footer a{padding:4px 6px;}
}

/* Reduced motion */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:0.01ms !important;
    transition-duration:0.01ms !important;
  }
}