:root{
  --bg:#f6f8f9;
  --card:#ffffff;
  --muted:#6b7280;
  --accent-1:#0b6;
  --accent-2:#067;
  --shadow: 0 6px 20px rgba(12,18,24,0.08);
  --radius:14px;
  --gap:18px;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  color-scheme: light;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:linear-gradient(180deg,var(--bg) 0%, #eef3f5 100%);
  display:flex;
  align-items:center;
  justify-content:center;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  padding:20px;
  min-height:100vh;
}

.card{
  width:100%;
  max-width:540px;
  background:var(--card);
  border-radius:var(--radius);
  padding:28px;
  box-shadow:var(--shadow);
  display:flex;
  flex-direction:column;
  align-items:stretch;
  gap:var(--gap);
}

/* Header */
.brand{
  display:flex;
  align-items:center;
  gap:12px;
}
.logo{width:56px;height:56px;flex:0 0 56px;border-radius:10px}
.name{
  font-weight:700;
  letter-spacing:0.6px;
  font-size:18px;
  color:#0f1724;
}

/* Content */
.content{text-align:center; padding-top:6px}
h1{
  margin:8px 0 6px;
  font-size:22px;
  color:#071133;
}
.subtitle{
  margin:0 0 18px;
  color:var(--muted);
  font-size:14px;
}

/* Progress */
.progress{display:flex;align-items:center;gap:12px;justify-content:center}
.bar{
  width:60%;
  max-width:320px;
  height:12px;
  background:#eef4f6;
  border-radius:999px;
  overflow:hidden;
  box-shadow:inset 0 1px 0 rgba(255,255,255,0.6);
}
.fill{
  height:100%;
  width:0%;
  background:linear-gradient(90deg,var(--accent-1),var(--accent-2));
  border-radius:999px;
  transition:width 600ms cubic-bezier(.2,.9,.2,1);
}
.percent{
  min-width:40px;
  font-weight:600;
  color:var(--muted);
  font-size:13px;
}

/* Actions */
.actions{
  display:flex;
  gap:10px;
  justify-content:center;
  margin-top:12px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:10px 14px;
  border-radius:10px;
  text-decoration:none;
  font-weight:600;
  font-size:14px;
  min-width:160px;
  background:linear-gradient(90deg,var(--accent-1),var(--accent-2));
  color:white;
  border:none;
  cursor:pointer;
  box-shadow: 0 6px 18px rgba(7,17,34,0.06);
}
.btn.ghost{
  background:transparent;
  color:#0b1826;
  border:1px solid #e6eef2;
  box-shadow:none;
}

/* Footer */
.foot{display:flex;justify-content:center;color:var(--muted);padding-top:6px}

/* Responsiveness: ensure fits single viewport height on mobile */
@media (max-height:640px){
  .card{padding:18px}
  .logo{width:48px;height:48px}
  h1{font-size:20px}
  .btn{min-width:140px;padding:9px 12px}
}