:root {
  --onfly-primary: #009EFA;
  --bg-outer: #0A121A;      
  --card-bg:   #0F1A24;     
  --card-brd:  #132433;     
  --text-main: #E6EDF3;     
  --text-dim:  #9CB3C5;    
  --accent:    #66C9FF;     
  --ok-bg:     var(--onfly-primary);
  --ok-text:   #001018;
  --shadow:    0 10px 24px rgba(0,0,0,.35);
  --radius-xl: 16px;
  --radius-md: 10px;
  --space:     24px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  display: flex;
  align-items: center;
  margin: 0; padding: var(--space);
  background: radial-gradient(1200px 800px at 10% -10%, rgba(0,158,250,.18), transparent 60%),
              linear-gradient(0deg, rgba(0,0,0,.15), rgba(0,0,0,.15)),
              var(--bg-outer);
  color: var(--text-main);
  font: 16px/1.55 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, "Noto Sans", "Helvetica Neue";
}

section { max-width: 760px; margin: 0 auto; }
.card {
  background: linear-gradient(180deg, rgba(255,255,255,.02), transparent 60%), var(--card-bg);
  border: 1px solid var(--card-brd);
  border-radius: var(--radius-xl);
  padding: var(--space);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute; inset: 0 0 auto 0; height: 4px;
  background: var(--onfly-primary);
}

.header h1 {
  margin: 0 0 6px; font-size: clamp(22px, 4vw, 28px);
  font-weight: 700; letter-spacing: .2px;
}
.meta { margin: 0 0 16px; color: var(--text-dim); font-size: .95rem; }

.grid { display: grid; gap: 30px; grid-template-columns: repeat(1, minmax(220px, 1fr)); margin-top: 8px; }
.row {
  background: rgba(255,255,255,.02);
  border: 1px solid var(--card-brd);
  border-radius: 12px;
  padding: 10px 12px;
}
.row .label { color: var(--text-dim); font-size: .9rem; margin-bottom: 4px; }
.row .value { font-weight: 600; letter-spacing: .2px; }

button:hover { filter: brightness(1.03); transform: translateY(-1px); }
button:active { transform: translateY(0); } 

button {
  margin-top: 18px; padding: 10px 16px;
  border-radius: var(--radius-md);
  background: var(--ok-bg); color: var(--ok-text);
  text-decoration: none; font-weight: 600; border: 1px solid rgba(0,0,0,.2);
  transition: transform .06s ease, filter .2s ease, box-shadow .2s ease;
  box-shadow: 0 6px 16px rgba(0,158,250,.25);
  display: flex;
  color: white;
  align-items: center;
  gap: 8px;
}

button #spinner {
  display: none;
  width: 16px;
  height: 16px;
  border: 2px solid white;
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

button.loading .text {
  visibility: hidden; 
}

button.loading .spinner {
  display: inline-block;
}

input{
  width: 100%;
  background: transparent;
  border: none;
  height: 100%;
  color: white;
  padding: 5px 0px;
}

input:focus-visible{
  outline: none;
}

.div-result{
  display: grid;
  gap: 20px;
}

#error{
    color: #ea1f30;
    display: none;
}

#result{
    display: none;
}