/* ============================================================
   Folio landing — derived from the app's own design system
   (.dev/design tokens: #1C1C1E bars, #161618 panels, #0E0E0F base,
    #0A84FF accent, #32D7A0 clean, #FF9F0A privacy, #FF453A danger)
   The page is meant to feel like a continuation of the app's surface.
   ============================================================ */

:root {
  --bg:        #0E0E0F;
  --panel:     #161618;
  --bar:       #1C1C1E;
  --card:      #202022;
  --line:      rgba(255,255,255,.06);
  --line2:     rgba(84,84,88,.4);
  --accent:    #0A84FF;
  --clean:     #32D7A0;
  --privacy:   #FF9F0A;
  --danger:    #FF453A;
  --neutral:   #8E8E93;
  --t1: #fff;
  --t2: rgba(235,235,245,.6);
  --t3: rgba(235,235,245,.4);
  --t4: rgba(235,235,245,.3);
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", "PingFang SC",
          "Microsoft YaHei", system-ui, sans-serif;
  --mono: "SF Mono", ui-monospace, "JetBrains Mono", "Cascadia Code", Menlo, Consolas, monospace;
  --maxw: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--t1);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.5;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
h1, h2, h3 { margin: 0; letter-spacing: -0.022em; }

.eyebrow {
  font: 600 12px/1 var(--mono);
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--t3);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 18px;
}
.dot { width: 7px; height: 7px; border-radius: 9999px; background: var(--accent);
       box-shadow: 0 0 0 4px rgba(10,132,255,.16); }
.dot.warn { background: var(--privacy); box-shadow: 0 0 0 4px rgba(255,159,10,.16); }
.grad { background: linear-gradient(96deg,#0A84FF,#32D7A0); -webkit-background-clip: text;
        background-clip: text; color: transparent; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border-radius: 8px; font-weight: 600; font-size: 14px; padding: 11px 18px;
  border: 1px solid transparent; cursor: pointer; transition: transform .12s ease, background .15s ease, border-color .15s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: #2b95ff; }
.btn-ghost { color: var(--t2); }
.btn-ghost:hover { color: var(--t1); }
.btn-outline { border-color: rgba(255,255,255,.18); color: var(--t1); background: rgba(255,255,255,.02); }
.btn-outline:hover { border-color: rgba(255,255,255,.32); background: rgba(255,255,255,.05); }
.btn-sm { padding: 7px 14px; font-size: 13px; }
.btn-lg { padding: 14px 26px; font-size: 15px; flex-direction: column; gap: 2px; align-items: flex-start; min-width: 200px; }

/* ============================================================ NAV */
.topnav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 28px;
  padding: 0 28px; height: 56px;
  background: rgba(28,28,30,.72);
  backdrop-filter: saturate(160%) blur(18px);
  border-bottom: 1px solid var(--line);
}
.brand { display: inline-flex; align-items: center; gap: 9px; }
.brand-mark { width: 24px; height: 24px; flex: none; display: block; object-fit: contain; }
.brand-name { font-weight: 700; font-size: 16px; letter-spacing: -.01em; }
.nav-links { display: flex; gap: 26px; margin-left: 8px; }
.nav-links a { color: var(--t2); font-size: 14px; font-weight: 500; }
.nav-links a:hover { color: var(--t1); }
.nav-actions { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.gh-link { display: inline-flex; align-items: center; gap: 8px; }
.gh-ic { flex: none; }

/* ============================================================ HERO */
.hero {
  max-width: var(--maxw); margin: 0 auto;
  padding: 72px 28px 40px;
  display: grid; grid-template-columns: minmax(0,0.92fr) minmax(0,1.08fr);
  gap: 56px; align-items: center;
}
.hero h1 { font-size: clamp(34px, 4.6vw, 56px); font-weight: 800; line-height: 1.04; }
.lede { color: var(--t2); font-size: 17px; max-width: 30em; margin: 22px 0 28px; }
.lede strong { color: var(--clean); font-weight: 600; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-stats { list-style: none; display: flex; gap: 30px; padding: 0; margin: 40px 0 0;
              border-top: 1px solid var(--line); padding-top: 24px; }
.hero-stats li { display: flex; flex-direction: column; gap: 4px; }
.hero-stats .num { font: 700 30px/1 var(--mono); font-variant-numeric: tabular-nums;
                   background: linear-gradient(180deg,#fff,rgba(255,255,255,.7));
                   -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-stats .lbl { font-size: 11.5px; color: var(--t3); max-width: 12em; }

/* ---------- hero app screenshot ---------- */
.appshot {
  border-radius: 14px; overflow: hidden; line-height: 0;
  border: 1px solid rgba(255,255,255,.08);
  box-shadow: 0 40px 120px -30px rgba(0,0,0,.85), 0 0 0 1px rgba(0,0,0,.4);
}
.appshot-img { display: block; width: 100%; height: auto; }

/* ============================================================ BANDS */
.band { max-width: var(--maxw); margin: 0 auto; padding: 88px 28px; }
.band-head { max-width: 640px; margin-bottom: 48px; }
.band-head h2 { font-size: clamp(26px, 3vw, 36px); font-weight: 700; line-height: 1.12; }
.band-head .sub, .sub { color: var(--t2); font-size: 16px; margin-top: 14px; }

/* features */
.features { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
.feat { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 24px;
        transition: border-color .2s ease, transform .2s ease; }
.feat:hover { border-color: rgba(255,255,255,.16); transform: translateY(-3px); }
.feat-ic { width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center;
           margin-bottom: 16px; }
.ic-lucide { display: block; }
.feat-ic[data-c="blue"]   { background: rgba(10,132,255,.14); color: #5cb0ff; }
.feat-ic[data-c="green"]  { background: rgba(50,215,160,.14); color: var(--clean); }
.feat-ic[data-c="orange"] { background: rgba(255,159,10,.14); color: var(--privacy); }
.feat h3 { font-size: 16px; font-weight: 650; margin-bottom: 8px; }
.feat p { color: var(--t2); font-size: 14px; margin: 0; }

/* privacy split */
.band-privacy { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.checklist { list-style: none; padding: 0; margin: 26px 0 0; display: flex; flex-direction: column; gap: 14px; }
.checklist li { position: relative; padding-left: 30px; color: var(--t2); font-size: 14.5px; }
.checklist li b { color: var(--t1); font-weight: 650; margin-right: 6px; }
.checklist li::before { content: "✓"; position: absolute; left: 0; top: 0; width: 20px; height: 20px;
  border-radius: 6px; background: rgba(50,215,160,.16); color: var(--clean);
  display: grid; place-items: center; font-size: 12px; font-weight: 700; }

.erase-card { background: var(--bar); border: 1px solid rgba(255,255,255,.08); border-radius: 16px;
              overflow: hidden; box-shadow: 0 30px 80px -30px rgba(0,0,0,.7); }
.ec-head { padding: 16px 18px; border-bottom: 1px solid var(--line); font-weight: 650; font-size: 15px;
           display: flex; align-items: center; justify-content: space-between; }
.ec-preset { font: 600 11px var(--mono); color: var(--privacy); background: rgba(255,159,10,.14);
             padding: 3px 9px; border-radius: 9999px; }
.ec-list { padding: 10px 12px; display: flex; flex-direction: column; gap: 2px; }
.ec-item { display: flex; align-items: center; gap: 11px; padding: 9px 8px; border-radius: 8px;
           font-size: 14px; cursor: default; }
.ec-item:hover { background: rgba(255,255,255,.03); }
.ec-item i { margin-left: auto; font: 500 11px var(--mono); color: var(--t3); font-style: normal; }
.cb { width: 17px; height: 17px; border-radius: 5px; border: 1.5px solid rgba(255,255,255,.22); flex: none; position: relative; }
.cb.on { background: var(--accent); border-color: var(--accent); }
.cb.on::after { content: "✓"; position: absolute; inset: 0; display: grid; place-items: center;
                color: #fff; font-size: 11px; font-weight: 800; }
.ec-foot { display: flex; align-items: center; justify-content: space-between; padding: 14px 18px;
           border-top: 1px solid var(--line); }
.ec-toggle { display: inline-flex; align-items: center; gap: 9px; font-size: 13px; color: var(--t2); }
.sw { width: 34px; height: 20px; border-radius: 9999px; background: rgba(255,255,255,.14); position: relative; flex: none; }
.sw.on { background: var(--clean); }
.sw::after { content: ""; position: absolute; top: 2px; left: 2px; width: 16px; height: 16px; border-radius: 9999px; background: #fff; transition: left .15s; }
.sw.on::after { left: 16px; }
.ec-go { background: var(--accent); color: #fff; font-weight: 600; font-size: 13px; padding: 8px 16px; border-radius: 8px; }
.ec-warn { margin: 0; padding: 0 18px 16px; font-size: 12px; color: var(--privacy); }

/* multiview screenshot */
.shot.wide { border-radius: 14px; border: 1px solid rgba(255,255,255,.08);
             overflow: hidden; box-shadow: 0 40px 120px -40px rgba(0,0,0,.8); line-height: 0; }
.preview-img { display: block; width: 100%; height: auto; }

.shot-credit { margin: 12px 2px 0; text-align: right; font-size: 12px; color: var(--t4); }
.shot-credit a { color: var(--t3); text-decoration: underline; text-decoration-color: rgba(255,255,255,.18);
                 text-underline-offset: 2px; }
.shot-credit a:hover { color: var(--t2); text-decoration-color: var(--accent); }

/* shortcuts */
.band-keys { border-top: 1px solid var(--line); }
.keys { display: grid; grid-template-columns: repeat(2,1fr); gap: 12px 48px; max-width: 820px; }
.keyrow { display: flex; align-items: center; gap: 10px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.keycap { min-width: 30px; height: 30px; padding: 0 9px; border-radius: 7px; background: var(--card);
          border: 1px solid rgba(255,255,255,.14); border-bottom-width: 2.5px;
          display: inline-grid; place-items: center; font: 600 13px var(--mono); color: var(--t1); }
.kd { color: var(--t2); font-size: 14px; margin-left: 6px; }

/* cta */
.band-cta { text-align: center; padding-top: 96px; padding-bottom: 110px; }
.band-cta h2 { font-size: clamp(28px,3.4vw,42px); font-weight: 750; }
.band-cta .sub { margin: 16px auto 0; max-width: 30em; }
.dl-row { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin: 36px 0 0; }
.dl-os { font-size: 15px; font-weight: 650; }
.dl-meta { font: 500 11px var(--mono); opacity: .7; }
.dl-note { color: var(--t3); font-size: 13px; margin-top: 22px; }

/* open-source / build-from-source */
.oss { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; align-items: stretch;
       margin: 46px auto 0; max-width: 720px; }
.oss-card { display: inline-flex; align-items: center; gap: 14px; text-align: left;
            background: var(--card); border: 1px solid var(--line); border-radius: 12px;
            padding: 16px 20px; transition: border-color .2s ease, transform .2s ease; }
.oss-card:hover { border-color: rgba(255,255,255,.18); transform: translateY(-2px); }
.oss-card .gh-ic { color: var(--t1); }
.oss-text { display: flex; flex-direction: column; gap: 2px; }
.oss-text b { font-size: 14px; font-weight: 650; font-family: var(--mono); }
.oss-text span { font-size: 12.5px; color: var(--t3); }
.oss-clone { display: flex; flex-direction: column; gap: 7px; justify-content: center;
             text-align: left; padding: 16px 20px; border: 1px dashed var(--line);
             border-radius: 12px; background: rgba(255,255,255,.015); }
.clone-lbl { font: 600 11px var(--mono); letter-spacing: .04em; text-transform: uppercase; color: var(--t4); }
.clone-cmd { font: 500 12.5px var(--mono); color: var(--clean); white-space: nowrap; user-select: all; }

/* footer — status-bar styled */
.footer { display: flex; align-items: center; gap: 10px; padding: 0 28px; height: 48px;
          border-top: 1px solid var(--line); background: var(--bar);
          font-size: 13px; color: var(--t3); }
.f-brand { font-weight: 700; color: var(--t2); }
.f-sep { opacity: .5; }
.f-spacer { flex: 1; }
.f-link { color: var(--t2); font-weight: 500; font-size: 13px; }
.f-link:hover { color: var(--t1); }
.f-mono { font: 500 12px var(--mono); margin-left: 4px; }

/* ============================================================ RESPONSIVE */
@media (max-width: 920px) {
  .hero { grid-template-columns: 1fr; gap: 40px; padding-top: 48px; }
  .features { grid-template-columns: 1fr 1fr; }
  .split { grid-template-columns: 1fr; gap: 36px; }
  .keys { grid-template-columns: 1fr; gap: 0 0; }
  .nav-links { display: none; }
}
@media (max-width: 560px) {
  .features { grid-template-columns: 1fr; }
  .hero-stats { gap: 18px; flex-wrap: wrap; }
  .btn-lg { min-width: 0; flex: 1; }
  .band { padding: 56px 20px; }
  .hero { padding-left: 20px; padding-right: 20px; }
  .oss { flex-direction: column; }
  .oss-card, .oss-clone { width: 100%; }
  .clone-cmd { overflow-x: auto; }
  /* Keep the GitHub label on small screens but drop it on very narrow widths */
  .nav-actions .gh-link span { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; scroll-behavior: auto !important; }
}
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }