:root{
  --bg:#070b14;
  --panel:#0e1524;
  --panel-2:#131c30;
  --line:#22304d;
  --gold:#c9a227;
  --gold-soft:#e7c85a;
  --txt:#e8edf6;
  --txt-dim:#93a1bb;
  --blue:#2f6fd0;
  --safe-b:env(safe-area-inset-bottom,0px);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;height:100%}
body{
  background:var(--bg);
  color:var(--txt);
  font:16px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  overscroll-behavior:none;
  -webkit-text-size-adjust:100%;
}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
.hidden{display:none !important}

/* ---------- tela inicial ---------- */
#intro{
  position:fixed;inset:0;z-index:50;overflow-y:auto;
  background:
    radial-gradient(1200px 600px at 50% -10%,#16233d 0%,transparent 60%),
    linear-gradient(180deg,#070b14 0%,#0a1020 100%);
  padding:32px 20px calc(32px + var(--safe-b));
}
.intro-wrap{max-width:520px;margin:0 auto;text-align:center}
.crest{
  width:74px;height:74px;margin:0 auto 18px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(160deg,#1d2947 0%,#101a2e 100%);
  border:1px solid var(--gold);
  box-shadow:0 0 28px rgba(201,162,39,.22);
  font-size:32px;
}
.eyebrow{
  font-size:11px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--gold-soft);margin:0 0 6px;font-weight:600;
}
.org{font-size:13px;color:var(--txt-dim);margin:0 0 26px}
h1{
  font-size:26px;line-height:1.25;margin:0 0 10px;font-weight:700;
  letter-spacing:-.01em;
}
.author{font-size:15px;color:var(--txt-dim);margin:0 0 4px}
.author strong{color:var(--txt);font-weight:600}
.creds{font-size:12.5px;color:var(--txt-dim);margin:0 auto 26px;max-width:420px}

.rule{height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent);margin:26px 0}

.qrcard{
  background:#fff;border-radius:14px;padding:14px;width:196px;margin:0 auto 10px;
  box-shadow:0 8px 30px rgba(0,0,0,.45);
}
.qrcard img{display:block;width:100%;height:auto;image-rendering:pixelated}
.qrlabel{font-size:12px;color:var(--txt-dim);margin:0 0 4px}
.qrurl{font-size:13px;color:var(--gold-soft);font-weight:600;margin:0 0 26px;word-break:break-all}

.howto{text-align:left;max-width:440px;margin:0 auto 26px}
.howto h2{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--gold-soft);margin:0 0 12px}
.howto ol{margin:0;padding-left:20px}
.howto li{margin-bottom:9px;font-size:14.5px;color:#c6d1e4}

.warn{
  display:flex;gap:10px;text-align:left;max-width:440px;margin:0 auto 28px;
  background:rgba(201,162,39,.07);border:1px solid rgba(201,162,39,.3);
  border-radius:12px;padding:13px 15px;font-size:13.5px;color:#d9c98f;
}
.warn b{color:var(--gold-soft)}

.btn-primary{
  display:block;width:100%;max-width:440px;margin:0 auto;
  background:linear-gradient(180deg,var(--gold-soft),var(--gold));
  color:#141005;font-weight:700;font-size:16px;
  padding:15px;border-radius:12px;letter-spacing:.01em;
  box-shadow:0 6px 22px rgba(201,162,39,.28);
}
.btn-ghost{
  display:block;width:100%;max-width:440px;margin:12px auto 0;
  border:1px solid var(--line);border-radius:12px;padding:13px;
  color:var(--txt-dim);font-size:14.5px;
}
.footnote{font-size:11.5px;color:#5d6b85;margin:24px 0 0}

/* ---------- app ---------- */
/* 100dvh so existe no Safari 15.4+. Sem o 100vh antes, iPhone antigo ignora a altura
   inteira e o layout desmonta. A ordem importa: o navegador fica na ultima que entende. */
#app{display:flex;flex-direction:column;height:100vh;height:100dvh}

.topbar{
  display:flex;align-items:center;gap:10px;
  padding:9px 12px;background:var(--panel);border-bottom:1px solid var(--line);
  padding-top:calc(9px + env(safe-area-inset-top,0px));
  flex:none;
}
.icon-btn{
  width:38px;height:38px;border-radius:9px;flex:none;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:var(--panel-2);
}
.icon-btn:active{background:#1b2740}
.icon-btn svg{width:19px;height:19px;stroke:var(--txt);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.topbar-title{flex:1;min-width:0}
.topbar-title .num{font-size:11px;color:var(--gold-soft);letter-spacing:.08em;font-weight:600}
.topbar-title .name{
  font-size:13.5px;color:var(--txt);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.has-note-dot{
  width:7px;height:7px;border-radius:50%;background:var(--gold);flex:none;
  box-shadow:0 0 8px var(--gold);
}

.stage{
  flex:1;min-height:0;position:relative;display:flex;align-items:center;justify-content:center;
  background:#04070d;overflow:hidden;
}
.stage img{
  max-width:100%;max-height:100%;display:block;
  transition:filter .25s ease;
}
.stage img.ph{filter:blur(12px);transform:scale(1.02)}
.tap-hint{
  position:absolute;bottom:10px;left:50%;transform:translateX(-50%);
  font-size:11px;color:#7c8aa3;background:rgba(4,7,13,.75);
  padding:5px 11px;border-radius:20px;pointer-events:none;
  transition:opacity .4s;
}
.edge{
  position:absolute;top:0;bottom:0;width:22%;z-index:2;
  -webkit-tap-highlight-color:transparent;
}
.edge.l{left:0}
.edge.r{right:0}

.notebar{flex:none;background:var(--panel);border-top:1px solid var(--line)}
.notetoggle{
  display:flex;align-items:center;gap:9px;width:100%;
  padding:12px 14px calc(12px + var(--safe-b));text-align:left;
}
.notetoggle.open{padding-bottom:12px}
.notetoggle svg{width:18px;height:18px;stroke:var(--gold-soft);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none}
.notetoggle .lbl{flex:1;font-size:14.5px;color:var(--txt)}
.notetoggle .chev{width:16px;height:16px;stroke:var(--txt-dim);transition:transform .2s}
.notetoggle.open .chev{transform:rotate(180deg)}
.notepanel{padding:0 14px calc(14px + var(--safe-b))}
textarea{
  width:100%;min-height:132px;resize:vertical;
  background:var(--panel-2);color:var(--txt);
  border:1px solid var(--line);border-radius:10px;padding:12px;
  /* nao usar o atalho "font: ... inherit" — e invalido e o campo cai para monoespacado */
  font-family:inherit;
  font-size:15px;
  line-height:1.55;
}
textarea:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(201,162,39,.12)}
.noteinfo{display:flex;justify-content:space-between;align-items:center;margin-top:8px;font-size:11.5px;color:#6b7a94}
.saved{color:var(--gold-soft);opacity:0;transition:opacity .3s}
.saved.on{opacity:1}

/* ---------- indice ---------- */
#drawer{position:fixed;inset:0;z-index:40;display:flex}
#drawer .scrim{position:absolute;inset:0;background:rgba(2,4,9,.72)}
.drawer-panel{
  position:relative;width:min(88%,400px);height:100%;
  background:var(--panel);border-right:1px solid var(--line);
  display:flex;flex-direction:column;
}
.drawer-head{
  padding:calc(14px + env(safe-area-inset-top,0px)) 14px 12px;
  border-bottom:1px solid var(--line);display:flex;align-items:center;gap:10px;
}
.drawer-head h3{margin:0;font-size:14px;letter-spacing:.1em;text-transform:uppercase;color:var(--gold-soft);flex:1}
.drawer-list{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;padding-bottom:var(--safe-b)}
.drawer-list button{
  display:flex;gap:11px;align-items:flex-start;width:100%;text-align:left;
  padding:11px 14px;border-bottom:1px solid rgba(34,48,77,.5);
}
.drawer-list button.cur{background:rgba(201,162,39,.09)}
.drawer-list .n{
  font-size:11.5px;color:var(--gold-soft);font-weight:700;min-width:22px;
  padding-top:2px;font-variant-numeric:tabular-nums;
}
.drawer-list .t{flex:1;font-size:14px;color:#cbd6e8;line-height:1.35}
.drawer-list button.cur .t{color:#fff}
.drawer-list .dot{width:6px;height:6px;border-radius:50%;background:var(--gold);margin-top:7px;flex:none}
.drawer-foot{border-top:1px solid var(--line);padding:12px 14px calc(12px + var(--safe-b));display:grid;gap:8px}
.act{
  display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:10px;
  border:1px solid var(--line);background:var(--panel-2);font-size:14px;
}
.act.danger{color:#e08a8a;border-color:#4a2530}
.act svg{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* ---------- zoom ---------- */
#zoom{position:fixed;inset:0;z-index:60;background:#000;touch-action:none;overflow:hidden}
#zoom img{position:absolute;top:0;left:0;transform-origin:0 0;will-change:transform}
#zoom .close{
  position:absolute;top:calc(12px + env(safe-area-inset-top,0px));right:12px;z-index:2;
  width:42px;height:42px;border-radius:50%;background:rgba(20,28,45,.85);
  display:flex;align-items:center;justify-content:center;border:1px solid var(--line);
}
#zoom .close svg{width:20px;height:20px;stroke:#fff;fill:none;stroke-width:2;stroke-linecap:round}
#zoom .zhint{
  position:absolute;bottom:calc(16px + var(--safe-b));left:50%;transform:translateX(-50%);
  font-size:12px;color:#8b98af;background:rgba(0,0,0,.6);padding:6px 13px;border-radius:20px;
  pointer-events:none;transition:opacity .4s;
}

/* ---------- convite a tela cheia ---------- */
#fsChip{
  position:fixed;left:50%;bottom:calc(66px + var(--safe-b));transform:translate(-50%,10px);
  display:flex;align-items:center;gap:9px;z-index:65;
  background:linear-gradient(180deg,var(--gold-soft),var(--gold));
  color:#141005;font-weight:700;font-size:14px;
  padding:11px 18px;border-radius:24px;
  box-shadow:0 8px 26px rgba(0,0,0,.5),0 0 0 1px rgba(255,255,255,.15) inset;
  opacity:0;transition:opacity .25s,transform .25s;
}
#fsChip.on{opacity:1;transform:translate(-50%,0)}
#fsChip svg{width:17px;height:17px;stroke:#141005;fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
@media (orientation:landscape) and (max-height:520px){
  #fsChip{bottom:calc(52px + var(--safe-b));padding:9px 15px;font-size:13px}
}

/* ---------- toast ---------- */
#toast{
  position:fixed;left:50%;bottom:calc(24px + var(--safe-b));transform:translate(-50%,14px);
  background:var(--panel-2);border:1px solid var(--line);border-radius:11px;
  padding:12px 18px;font-size:14px;z-index:70;
  opacity:0;pointer-events:none;transition:opacity .25s,transform .25s;
  max-width:88vw;text-align:center;box-shadow:0 10px 34px rgba(0,0,0,.5);
}
#toast.on{opacity:1;transform:translate(-50%,0)}

/* ---------- progresso de download ---------- */
#dl{
  position:fixed;top:0;left:0;height:2px;background:var(--gold);
  z-index:80;transition:width .3s ease,opacity .5s;width:0;
}

/* Celular deitado: a altura util e pouca e o navegador ja consome parte dela.
   Compacta o cabecalho e o rodape para sobrar area de slide. */
@media (orientation:landscape) and (max-height:520px){
  .topbar{padding:5px 10px;gap:8px}
  .icon-btn{width:34px;height:34px}
  .icon-btn svg{width:17px;height:17px}
  .topbar-title .num{font-size:9.5px}
  .topbar-title .name{font-size:12.5px}
  .notetoggle{padding:8px 12px calc(8px + var(--safe-b))}
  .notetoggle.open{padding-bottom:8px}
  .notetoggle .lbl{font-size:13.5px}
  .notepanel{padding:0 12px calc(10px + var(--safe-b))}
  textarea{min-height:84px}
  .tap-hint{bottom:6px;font-size:10.5px;padding:4px 9px}

  /* O indice tem pouca altura: compacta as linhas e transforma o rodape em tres
     botoes lado a lado, senao sobra espaco para uma unica linha da lista. */
  .drawer-head{padding:calc(8px + env(safe-area-inset-top,0px)) 12px 8px}
  .drawer-head h3{font-size:12px}
  .drawer-list button{padding:8px 12px;gap:9px}
  .drawer-list .t{font-size:13px;line-height:1.3}
  .drawer-list .n{font-size:11px}
  .drawer-foot{grid-template-columns:1fr 1fr 1fr;gap:6px;padding:8px 10px calc(8px + var(--safe-b))}
  .act{flex-direction:column;gap:5px;padding:8px 4px;font-size:10.5px;text-align:center;line-height:1.2}
  .act svg{width:16px;height:16px}
}

@media (min-width:860px){
  .stage img{max-height:100%;}
  .topbar-title .name{font-size:15px}
}