:root {
  --bg: #f3f5fa;
  --bg-accent: #dde6f5;
  --surface: #ffffff;
  --text: #101828;
  --muted: #5b6478;
  --x: #0e9f9f;
  --o: #e5484d;
  --line: rgba(16, 24, 40, 0.08);
  --shadow: 0 18px 40px rgba(16, 24, 40, 0.12);
  --radius: 24px;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1020;
    --bg-accent: #182246;
    --surface: #1b2444;
    --text: #f5f7ff;
    --muted: #a9b1c9;
    --x: #2dd4bf;
    --o: #ff6b6b;
    --line: rgba(255, 255, 255, 0.08);
    --shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: ui-rounded, -apple-system, "SF Pro Rounded", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, var(--bg-accent) 0%, var(--bg) 45%, var(--bg) 100%) fixed;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: "";
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  opacity: 0.09;
  background-image:
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='112' height='112' viewBox='0 0 112 112' fill='none' stroke-width='2.5' stroke-linecap='round'><path d='M22 22l12 12M34 22L22 34' stroke='%230e9f9f'/><circle cx='84' cy='28' r='6' stroke='%23e5484d'/><circle cx='28' cy='84' r='6' stroke='%23e5484d'/><path d='M78 78l12 12M90 78L78 90' stroke='%230e9f9f'/></svg>");
}
a { color: var(--x); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }

.wrap { width: min(1080px, 100% - 40px); margin: 0 auto; }

header.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 0;
}
.brand { display: flex; align-items: center; gap: 12px; font-weight: 800; font-size: 1.15rem; color: var(--text); }
.brand img { width: 40px; height: 40px; border-radius: 10px; }
.brand:hover { text-decoration: none; }
.nav-links { display: flex; gap: 22px; font-weight: 600; }
.nav-links a { color: var(--muted); }
.nav-links a:hover { color: var(--text); text-decoration: none; }

.wordmark span:nth-child(1) { color: var(--x); }
.wordmark span:nth-child(2) { color: var(--o); }
.wordmark span:nth-child(3) { color: var(--text); }

.hero {
  display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center;
  padding: 56px 0 72px;
}
.hero h1 { font-size: clamp(2.6rem, 6vw, 4.4rem); font-weight: 900; line-height: 1.02; margin: 0 0 18px; letter-spacing: -0.02em; }
.hero p.lead { font-size: 1.2rem; color: var(--muted); margin: 0 0 30px; max-width: 34rem; }
.cta { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.cta .badge img { height: 54px; width: auto; }
.cta .meta { color: var(--muted); font-size: 0.95rem; }
.cta .meta strong { color: var(--text); }

.phone {
  justify-self: center;
  width: min(320px, 80%);
  border-radius: 44px;
  padding: 10px;
  background: #0f1424;
  box-shadow: var(--shadow), inset 0 0 0 2px rgba(255,255,255,0.08);
  transform: rotate(-3deg);
}
.phone img { border-radius: 36px; }

section { padding: 48px 0; }
section h2 { font-size: clamp(1.7rem, 3.5vw, 2.4rem); font-weight: 900; letter-spacing: -0.01em; margin: 0 0 8px; }
section p.sub { color: var(--muted); margin: 0 0 32px; font-size: 1.05rem; }

.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }
.feature {
  background: var(--surface); border-radius: var(--radius); padding: 24px;
  box-shadow: var(--shadow); border: 1px solid var(--line);
}
.feature .icon {
  width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center;
  font-size: 1.35rem; font-weight: 900; margin-bottom: 14px;
  background: color-mix(in srgb, var(--x) 14%, transparent); color: var(--x);
}
.feature .icon.o { background: color-mix(in srgb, var(--o) 14%, transparent); color: var(--o); }
.feature h3 { margin: 0 0 6px; font-size: 1.12rem; }
.feature p { margin: 0; color: var(--muted); font-size: 0.98rem; }

.gallery { display: flex; gap: 18px; overflow-x: auto; padding: 8px 4px 24px; scroll-snap-type: x mandatory; }
.gallery figure { margin: 0; flex: 0 0 230px; scroll-snap-align: start; }
.gallery img { border-radius: 26px; box-shadow: var(--shadow); border: 1px solid var(--line); }
.gallery figcaption { text-align: center; color: var(--muted); font-size: 0.9rem; margin-top: 10px; font-weight: 600; }
.gallery.ipad figure { flex: 0 0 min(720px, 90%); }

.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; counter-reset: step; }
.step { position: relative; padding: 22px 22px 22px 66px; background: var(--surface); border-radius: 20px; border: 1px solid var(--line); }
.step::before {
  counter-increment: step; content: counter(step);
  position: absolute; left: 20px; top: 20px; width: 32px; height: 32px; border-radius: 50%;
  display: grid; place-items: center; font-weight: 900; color: #fff; background: var(--x);
}
.step:nth-child(even)::before { background: var(--o); }
.step h3 { margin: 0 0 4px; font-size: 1.05rem; }
.step p { margin: 0; color: var(--muted); font-size: 0.95rem; }

.band {
  margin: 24px 0 48px; padding: 40px; border-radius: 30px; text-align: center;
  background: linear-gradient(135deg, var(--x), color-mix(in srgb, var(--x) 55%, var(--o)));
  color: #fff; box-shadow: var(--shadow);
}
.band h2 { color: #fff; }
.band p { color: rgba(255,255,255,0.88); margin: 0 0 22px; }
.band .badge img { height: 56px; margin: 0 auto; }

footer { padding: 32px 0 44px; color: var(--muted); font-size: 0.92rem; border-top: 1px solid var(--line); }
footer .row { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
footer a { color: var(--muted); }
footer a:hover { color: var(--text); }

/* Simple pages (privacy, contact, thank you) */
.page { max-width: 720px; margin: 0 auto; padding: 32px 0 64px; }
.page h1 { font-size: clamp(2rem, 5vw, 3rem); font-weight: 900; letter-spacing: -0.02em; margin: 0 0 8px; }
.page .updated { color: var(--muted); margin: 0 0 32px; }
.page h2 { font-size: 1.3rem; margin: 30px 0 8px; }
.page p { color: var(--muted); }
.card { background: var(--surface); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); border: 1px solid var(--line); }
form label { display: block; font-weight: 700; margin: 16px 0 6px; }
form input[type="text"], form input[type="email"], form textarea {
  width: 100%; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--line);
  background: var(--bg); color: var(--text); font: inherit;
}
form textarea { min-height: 150px; resize: vertical; }
form input:focus, form textarea:focus { outline: 2px solid var(--x); outline-offset: 1px; }
.button {
  display: inline-block; margin-top: 20px; padding: 13px 26px; border: 0; border-radius: 999px;
  background: var(--x); color: #fff; font: inherit; font-weight: 800; cursor: pointer;
  box-shadow: 0 10px 24px color-mix(in srgb, var(--x) 40%, transparent);
}
.button:hover { filter: brightness(1.06); text-decoration: none; }
.button.o { background: var(--o); box-shadow: 0 10px 24px color-mix(in srgb, var(--o) 40%, transparent); }

@media (max-width: 800px) {
  .hero { grid-template-columns: 1fr; text-align: center; padding: 32px 0 48px; }
  .hero p.lead { margin-inline: auto; }
  .cta { justify-content: center; }
  .phone { transform: none; margin-top: 12px; }
  .nav-links { gap: 14px; font-size: 0.95rem; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

/* Privacy policy */
.policy-hero { text-align: center; padding: 40px 0 8px; }
.policy-hero .shield {
  width: 72px; height: 72px; margin: 0 auto 18px; border-radius: 22px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--x), color-mix(in srgb, var(--x) 55%, var(--o)));
  color: #fff; box-shadow: var(--shadow);
}
.policy-hero .shield svg { width: 36px; height: 36px; }
.policy-hero h1 { font-size: clamp(2.2rem, 5vw, 3.2rem); font-weight: 900; letter-spacing: -0.02em; margin: 0 0 10px; }
.policy-hero p { color: var(--muted); font-size: 1.15rem; max-width: 36rem; margin: 0 auto; }
.policy-hero .updated { display: inline-block; margin-top: 18px; padding: 6px 14px; border-radius: 999px; font-size: 0.85rem; font-weight: 700;
  background: color-mix(in srgb, var(--x) 12%, transparent); color: var(--x); }

.glance { display: grid; grid-template-columns: repeat(auto-fit, minmax(165px, 1fr)); gap: 14px; margin: 36px 0; }
.glance div { display: flex; align-items: center; gap: 12px; padding: 16px 18px; border-radius: 18px;
  background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow); font-weight: 700; }
.glance .dot { flex: 0 0 34px; width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; font-size: 1.1rem; }
.glance .dot.x { background: color-mix(in srgb, var(--x) 14%, transparent); color: var(--x); }
.glance .dot.o { background: color-mix(in srgb, var(--o) 14%, transparent); color: var(--o); }

.policy { display: grid; gap: 16px; }
.policy article { display: grid; grid-template-columns: 52px 1fr; gap: 18px; padding: 24px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow); }
.policy article .icon { width: 52px; height: 52px; border-radius: 16px; display: grid; place-items: center;
  background: color-mix(in srgb, var(--x) 12%, transparent); color: var(--x); }
.policy article:nth-child(even) .icon { background: color-mix(in srgb, var(--o) 12%, transparent); color: var(--o); }
.policy article .icon svg { width: 26px; height: 26px; }
.policy h2 { margin: 4px 0 6px; font-size: 1.25rem; }
.policy p { margin: 0 0 10px; color: var(--muted); }
.policy p:last-child { margin-bottom: 0; }
.policy ul { margin: 6px 0 0; padding-left: 20px; color: var(--muted); }
.policy li { margin: 4px 0; }

.data-table { width: 100%; border-collapse: collapse; margin-top: 12px; font-size: 0.95rem; }
.data-table th, .data-table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.data-table th { color: var(--muted); font-weight: 700; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; }
.data-table td { color: var(--text); }
.data-table tr:last-child td { border-bottom: 0; }
.tag { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 0.8rem; font-weight: 700; white-space: nowrap; }
.tag.device { background: color-mix(in srgb, var(--x) 14%, transparent); color: var(--x); }
.tag.apple { background: color-mix(in srgb, var(--muted) 18%, transparent); color: var(--text); }
.tag.none { background: color-mix(in srgb, var(--o) 12%, transparent); color: var(--o); }

.policy-contact { margin-top: 32px; padding: 32px; border-radius: 30px; text-align: center; color: #fff;
  background: linear-gradient(135deg, var(--x), color-mix(in srgb, var(--x) 55%, var(--o))); box-shadow: var(--shadow); }
.policy-contact h2 { margin: 0 0 6px; font-size: 1.5rem; }
.policy-contact p { margin: 0 0 18px; color: rgba(255,255,255,0.88); }
.policy-contact .actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.policy-contact .button { margin: 0; background: #fff; color: var(--x); box-shadow: 0 10px 24px rgba(0,0,0,0.18); }
.policy-contact .button.ghost { background: rgba(255,255,255,0.16); color: #fff; box-shadow: none; }

@media (max-width: 600px) {
  .policy article { grid-template-columns: 1fr; gap: 12px; }
  .data-table th:nth-child(2), .data-table td:nth-child(2) { display: none; }
}

/* Guides */
.crumbs { font-size: 0.9rem; color: var(--muted); margin: 8px 0 18px; }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--text); }
.kicker { display: inline-block; padding: 5px 12px; border-radius: 999px; font-size: 0.8rem; font-weight: 800; letter-spacing: 0.03em; text-transform: uppercase;
  background: color-mix(in srgb, var(--x) 12%, transparent); color: var(--x); }
.kicker.o { background: color-mix(in srgb, var(--o) 12%, transparent); color: var(--o); }

.article { max-width: 740px; margin: 0 auto; padding: 16px 0 64px; }
.article h1 { font-size: clamp(2rem, 5vw, 3rem); font-weight: 900; line-height: 1.08; letter-spacing: -0.02em; margin: 14px 0 14px; }
.article .lede { font-size: 1.2rem; color: var(--muted); margin: 0 0 14px; }
.article .byline { color: var(--muted); font-size: 0.9rem; margin: 0 0 32px; padding-bottom: 24px; border-bottom: 1px solid var(--line); }
.article h2 { font-size: 1.5rem; font-weight: 900; letter-spacing: -0.01em; margin: 40px 0 10px; }
.article h3 { font-size: 1.15rem; margin: 26px 0 6px; }
.article p, .article li { font-size: 1.06rem; line-height: 1.7; }
.article ul, .article ol { padding-left: 22px; }
.article li { margin: 6px 0; }
.article li::marker { color: var(--x); font-weight: 800; }
.article strong { font-weight: 800; }
.article table { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 0.98rem; background: var(--surface); border-radius: 16px; overflow: hidden; border: 1px solid var(--line); }
.article th, .article td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
.article th { color: var(--muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; }
.article tr:last-child td { border-bottom: 0; }
.article pre { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 18px; overflow-x: auto; font-size: 0.9rem; line-height: 1.5; }
.article code { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; font-size: 0.92em; }

.tip { margin: 24px 0; padding: 18px 20px; border-radius: 18px; border-left: 5px solid var(--x);
  background: color-mix(in srgb, var(--x) 9%, var(--surface)); }
.tip.o { border-left-color: var(--o); background: color-mix(in srgb, var(--o) 8%, var(--surface)); }
.tip p { margin: 0; }
.tip p + p { margin-top: 8px; }

.boards { display: flex; flex-wrap: wrap; gap: 18px; margin: 24px 0; justify-content: center; }
.board-fig { margin: 0; width: 168px; }
.boards + .boards { margin-top: 0; }
.board { display: grid; grid-template-columns: repeat(3, 1fr); grid-template-rows: repeat(3, 1fr); gap: 5px; padding: 5px; aspect-ratio: 1; border-radius: 18px;
  background: var(--line); box-shadow: var(--shadow); }
.board span { display: grid; place-items: center; aspect-ratio: 1; min-width: 0; border-radius: 12px; background: var(--surface); font-size: 1.9rem; font-weight: 900; line-height: 1; }
.board .x { color: var(--x); }
.board .o { color: var(--o); }
.board .hl { outline: 3px dashed var(--x); outline-offset: -6px; }
.board .hl.o-move { outline-color: var(--o); }
.board .win { background: color-mix(in srgb, var(--x) 20%, var(--surface)); }
.board .win.o { background: color-mix(in srgb, var(--o) 18%, var(--surface)); }
.board .num { color: var(--muted); font-size: 1rem; font-weight: 700; }
.board-fig figcaption { margin-top: 10px; text-align: center; font-size: 0.88rem; color: var(--muted); line-height: 1.4; }

.app-cta { display: grid; grid-template-columns: 64px 1fr auto; gap: 18px; align-items: center; margin: 36px 0; padding: 22px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow); }
.app-cta img.icon { width: 64px; height: 64px; border-radius: 16px; }
.app-cta h3 { margin: 0 0 2px; font-size: 1.08rem; }
.app-cta p { margin: 0; color: var(--muted); font-size: 0.95rem; line-height: 1.5; }
.app-cta .badge img { height: 46px; width: auto; }

.related { margin-top: 48px; padding-top: 28px; border-top: 1px solid var(--line); }
.related h2 { margin-top: 0; }

.guide-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 18px; }
.guide-card { display: flex; flex-direction: column; gap: 10px; padding: 24px; border-radius: var(--radius); color: var(--text);
  background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow); transition: transform 0.15s ease; }
.guide-card:hover { text-decoration: none; transform: translateY(-2px); }
.guide-card .kicker { align-self: flex-start; }
.guide-card h3 { margin: 0; font-size: 1.15rem; line-height: 1.3; }
.guide-card p { margin: 0; color: var(--muted); font-size: 0.96rem; }
.guide-card .read { margin-top: auto; color: var(--muted); font-size: 0.85rem; font-weight: 700; }
.related .guide-list { grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); }
.related .guide-card p { display: none; }

.guides-hero { padding: 40px 0 24px; }
.guides-hero h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); font-weight: 900; letter-spacing: -0.02em; margin: 0 0 10px; }
.guides-hero p { color: var(--muted); font-size: 1.15rem; max-width: 40rem; margin: 0; }

@media (max-width: 600px) {
  .app-cta { grid-template-columns: 52px 1fr; }
  .app-cta img.icon { width: 52px; height: 52px; }
  .app-cta .badge { grid-column: 1 / -1; justify-self: start; }
  .board-fig { width: 100px; }
  .board span { font-size: 1.4rem; border-radius: 9px; }
  .boards { gap: 12px; }
  .nav-links { gap: 12px; font-size: 0.9rem; }
}
@media (max-width: 420px) {
  .nav-links a[href$="#screens"] { display: none; }
}
@media (prefers-reduced-motion: reduce) { .guide-card { transition: none; } }