/* dv175 — Install UI + auth overlay */
:root{
  --dv175-p:#7c3cff;--dv175-p2:#a855f7;
  --dv175-bg:#0f0720;--dv175-gold:#ffc247;
  --dv175-r:20px;
}

/* ── FLOATING PILL ─────────────────────────────────────────────────────── */
.dv175-pill{
  position:fixed;
  bottom:max(80px, calc(env(safe-area-inset-bottom,0px) + 76px));
  right:16px;
  z-index:2000;
  background:linear-gradient(135deg,var(--dv175-p),var(--dv175-p2));
  color:#fff;
  border:none;border-radius:999px;
  padding:10px 16px 10px 12px;
  font-size:13px;font-weight:800;
  font-family:inherit;
  cursor:pointer;
  display:flex;align-items:center;gap:8px;
  box-shadow:0 6px 24px rgba(124,60,255,.45),0 2px 8px rgba(18,8,42,.2);
  transition:opacity .18s,transform .18s;
  white-space:nowrap;
}
.dv175-pill:hover{opacity:.9;transform:translateY(-2px);}
.dv175-pill:active{transform:scale(.96);}
@media(min-width:901px){
  .dv175-pill{bottom:24px;right:24px;}
}

/* ── BACKDROP ──────────────────────────────────────────────────────────── */
.dv175-backdrop{
  position:fixed;inset:0;
  background:rgba(9,1,18,.72);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  z-index:2100;
  opacity:0;transition:opacity .28s;
}
.dv175-backdrop.open{opacity:1;}

/* ── SHEETS ────────────────────────────────────────────────────────────── */
.dv175-sheet{
  position:fixed;
  bottom:0;left:0;right:0;
  z-index:2200;
  background:linear-gradient(180deg,#1c0d36,#0f0720);
  border-radius:22px 22px 0 0;
  border:1px solid rgba(124,60,255,.28);border-bottom:none;
  padding:18px 20px calc(24px + env(safe-area-inset-bottom,0px));
  transform:translateY(100%);
  transition:transform .34s cubic-bezier(.2,.9,.2,1);
  max-width:540px;margin:0 auto;
  max-height:90svh;overflow-y:auto;
  -webkit-overflow-scrolling:touch;
}
@media(min-width:540px){
  .dv175-sheet{border-radius:22px;bottom:16px;max-height:82svh;}
}
.dv175-sheet.open{transform:translateY(0);}
.dv175-sheet-center{text-align:center;}

.dv175-handle{
  width:36px;height:4px;border-radius:2px;
  background:rgba(255,255,255,.18);
  margin:0 auto 18px;
}
.dv175-x{
  position:absolute;top:12px;right:14px;
  background:rgba(255,255,255,.1);border:none;border-radius:50%;
  width:30px;height:30px;color:rgba(255,255,255,.65);
  font-size:20px;line-height:1;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  font-family:inherit;transition:background .18s;
}
.dv175-x:hover{background:rgba(255,255,255,.2);}

/* iOS sheet */
.dv175-sheet-head{
  display:flex;align-items:center;gap:14px;margin-bottom:22px;
}
.dv175-sheet-icon{
  border-radius:18px;
  box-shadow:0 8px 24px rgba(124,60,255,.38);
  flex-shrink:0;
}
.dv175-sheet-head strong{
  display:block;color:#fff;font-size:19px;
  font-weight:900;letter-spacing:-.025em;
}
.dv175-sheet-head span{color:rgba(255,255,255,.6);font-size:13px;}

.dv175-steps{
  list-style:none;margin:0;padding:0;
  display:flex;flex-direction:column;gap:10px;
}
.dv175-steps li{
  display:flex;align-items:flex-start;gap:11px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.07);
  border-radius:14px;padding:12px 14px;
}
.dv175-steps b{
  width:26px;height:26px;border-radius:50%;
  background:var(--dv175-p);color:#fff;
  font-size:13px;display:flex;align-items:center;justify-content:center;
  flex-shrink:0;font-weight:800;
}
.dv175-steps div{flex:1;}
.dv175-steps p{color:#fff;font-size:14px;margin:0 0 6px;line-height:1.45;}
.dv175-steps svg{color:var(--dv175-p);width:22px;height:22px;}
.dv175-preview{
  display:flex;align-items:center;gap:10px;
  background:rgba(124,60,255,.1);border-radius:10px;
  padding:10px 12px;margin-top:8px;
  font-size:12px;color:rgba(255,255,255,.6);
}
.dv175-warn{
  margin-top:14px;padding:11px 14px;
  background:rgba(255,194,71,.08);border:1px solid rgba(255,194,71,.18);
  border-radius:12px;font-size:13px;color:rgba(255,255,255,.65);
  line-height:1.5;
}
.dv175-warn strong{color:var(--dv175-gold);}

/* Android sheet */
.dv175-android-icon{
  border-radius:22px;
  box-shadow:0 10px 30px rgba(124,60,255,.42);
  margin-bottom:14px;
}
.dv175-android-title{
  display:block;color:#fff;
  font-size:22px;font-weight:900;
  letter-spacing:-.025em;margin-bottom:8px;
}
.dv175-android-sub{
  color:rgba(255,255,255,.6);font-size:14px;
  line-height:1.55;max-width:300px;
  margin:0 auto 22px;
}
.dv175-android-btns{display:flex;gap:10px;justify-content:center;}
.dv175-btn-ghost{
  background:rgba(255,255,255,.1);color:rgba(255,255,255,.7);
  border:none;border-radius:999px;padding:12px 22px;
  font-size:14px;font-weight:700;cursor:pointer;font-family:inherit;
  transition:background .18s;
}
.dv175-btn-ghost:hover{background:rgba(255,255,255,.18);}
.dv175-btn-go{
  background:linear-gradient(135deg,var(--dv175-p),var(--dv175-p2));
  color:#fff;border:none;border-radius:999px;padding:12px 22px;
  font-size:14px;font-weight:800;cursor:pointer;font-family:inherit;
  display:flex;align-items:center;gap:7px;
  box-shadow:0 6px 20px rgba(124,60,255,.38);
  transition:opacity .18s,transform .18s;
}
.dv175-btn-go:hover{opacity:.9;transform:translateY(-1px);}

/* ── AUTH ERROR OVERLAY ─────────────────────────────────────────────────── */
.dv175-auth-error{
  background:#fee2e2;color:#dc2626;
  border:1px solid #fecaca;border-radius:12px;
  padding:12px 14px;font-size:14px;font-weight:600;
  margin-bottom:16px;display:flex;align-items:center;gap:8px;
  animation:dv175shake .35s ease;
}
.dv175-auth-success{
  background:#dcfce7;color:#15803d;
  border:1px solid #bbf7d0;border-radius:12px;
  padding:12px 14px;font-size:14px;font-weight:600;
  margin-bottom:16px;
}
@keyframes dv175shake{
  0%,100%{transform:translateX(0);}
  20%{transform:translateX(-6px);}
  40%{transform:translateX(6px);}
  60%{transform:translateX(-4px);}
  80%{transform:translateX(4px);}
}

/* ── LOGIN BUTTON SPINNER ───────────────────────────────────────────────── */
.dv175-spin{
  display:inline-block;width:16px;height:16px;
  border:2px solid rgba(255,255,255,.35);
  border-top-color:#fff;border-radius:50%;
  animation:dv175rotate .7s linear infinite;
  vertical-align:middle;
}
@keyframes dv175rotate{to{transform:rotate(360deg);}}