:root{
  --blue:#0A1F44;
  --red:#B22234;
  --white:#ffffff;
  --ink:#0b1220;
  --muted:#667085;
  --border:#e6e8ee;
}

*{box-sizing:border-box}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", "Helvetica Neue", sans-serif;
  background: radial-gradient(1200px 600px at 20% 0%, rgba(255,255,255,.08), transparent),
              radial-gradient(900px 500px at 80% 10%, rgba(178,34,52,.10), transparent),
              var(--blue);
  color: var(--white);
}

.wrap{
  max-width: 720px;
  margin: 0 auto;
  padding: 24px 16px 40px;
}

.header{
  text-align:center;
  margin-bottom: 14px;
}
.flagbar{
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--red) 0 33%, var(--white) 33% 66%, #2a5bd7 66% 100%);
  margin: 10px auto 18px;
  max-width: 360px;
}
h1{
  margin: 0 0 6px;
  font-size: clamp(28px, 5vw, 40px);
  letter-spacing: .2px;
}
.sub{
  margin:0;
  color: rgba(255,255,255,.75);
  font-size: 14px;
}

.card{
  background: var(--white);
  color: var(--ink);
  border-radius: 16px;
  padding: 18px;
  border: 1px solid rgba(255,255,255,.2);
  box-shadow: 0 18px 60px rgba(0,0,0,.22);
}

.modes{
  display:flex;
  gap: 10px;
  justify-content:center;
  margin-bottom: 14px;
}
.mode{
  display:flex;
  align-items:center;
  gap: 8px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor:pointer;
  user-select:none;
}
.mode input{accent-color: var(--red);}

.label{
  display:block;
  margin: 10px 0 6px;
  font-weight: 600;
  font-size: 14px;
  color: #1f2a44;
}
.input{
  width: 100%;
  padding: 12px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  font-size: 16px;
  outline:none;
}
.input:focus{
  border-color: rgba(178,34,52,.55);
  box-shadow: 0 0 0 4px rgba(178,34,52,.12);
}

.btn{
  margin-top: 12px;
  width: 100%;
  border: 0;
  border-radius: 12px;
  padding: 12px 14px;
  background: var(--red);
  color: var(--white);
  font-weight: 700;
  font-size: 16px;
  cursor:pointer;
}
.btn:hover{filter: brightness(1.03);}
.btn:active{transform: translateY(1px);}

.btn.secondary{
  background: var(--blue);
}

.loading{
  display:flex;
  align-items:center;
  gap: 14px;
  margin-top: 14px;
  padding: 14px;
  border-radius: 12px;
  border: 1px dashed var(--border);
  background: #f7f8fb;
}
.spinner{
  width: 42px;
  height: 42px;
  object-fit: contain;
}
.loadingTitle{font-weight: 800;}
.loadingHint{color: var(--muted); font-size: 13px; margin-top: 2px;}

.result{
  margin-top: 14px;
  padding: 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #f7f8fb;
}
.resultLabel{
  font-size: 13px;
  font-weight: 700;
  color: var(--muted);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.nickname{
  font-size: clamp(22px, 3.6vw, 32px);
  font-weight: 900;
  color: var(--blue);
  padding: 10px 12px;
  border-radius: 12px;
  background: white;
  border: 1px solid var(--border);
}

.actions{
  display:flex;
  gap: 10px;
  margin-top: 12px;
}
.actions .btn{
  width: 50%;
  margin-top: 0;
}

.hidden{display:none;}

.footer{
  text-align:center;
  margin-top: 14px;
  color: rgba(255,255,255,.75);
  font-size: 13px;
}