:root {
  --bg: #0D0D0D;
  --bg-card: #161616;
  --text: #EFEFEF;
  --text-muted: #8D8D8D;
  --accent: #6B50FF;
  --border: #262626;
  --input-bg: #1A1A1A;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 2.5rem 1.25rem;
}

header {
  text-align: center;
  margin-bottom: 2.5rem;
}

header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.tagline {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}


/* Input */
#input-section { margin-bottom: 1rem; }

#input-section label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.4rem;
}

.input-group {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.input-group input[type="number"] {
  flex: 1;
  font-size: 1.4rem;
  font-weight: 600;
  font-family: inherit;
  padding: 0.6rem 0.9rem;
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 0;
  outline: none;
  min-width: 0;
  transition: border-color 0.2s;
}

.input-group input[type="number"]:focus {
  border-color: var(--accent);
}

.input-group input[type="number"]::-webkit-outer-spin-button,
.input-group input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.input-group input[type="number"] { -moz-appearance: textfield; }

.input-group select {
  font-size: 0.95rem;
  font-family: inherit;
  padding: 0.6rem 0.9rem;
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 0;
  cursor: pointer;
  outline: none;
  transition: border-color 0.2s;
}

.input-group select:focus {
  border-color: var(--accent);
}

/* Primary Result */
.primary-result {
  text-align: center;
  margin-bottom: 2rem;
  padding-top: 1.25rem;
  border-top: 2px solid var(--accent);
  transition: border-color 0.3s;
}

.primary-result .odds {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.2;
  margin-bottom: 0.2rem;
}

.primary-result .expected-time {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 0;
  padding: 1rem 1.1rem;
  transition: background-color 0.3s, border-color 0.3s, transform 0.2s;
}

.card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.card .label {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.25rem;
}

.card .value {
  display: block;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
}

.card .value.accent {
  color: var(--accent);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

/* Sections */
section {
  margin-bottom: 2.5rem;
}

section h2 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.75rem;
}

/* Network Info */
.network-info {
  margin-bottom: 1.5rem;
}

.net-heading {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.5rem;
}

.net-list {
  margin: 0;
}

.net-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.3rem 0;
  border-bottom: 1px solid var(--border);
  transition: border-color 0.3s;
}

.net-row:last-child {
  border-bottom: none;
}

.net-row dt {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 400;
}

.net-row dd {
  font-size: 0.8rem;
  color: var(--text);
  font-weight: 600;
  margin: 0;
}

.net-row.highlight dd {
  color: var(--accent);
}

#refresh-indicator {
  font-size: 0.5rem;
  color: var(--accent);
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.pulse {
  animation: pulse 2s ease-in-out infinite;
}

/* Responsive */
@media (max-width: 600px) {
  main { padding: 1.5rem 1rem; }
  header h1 { font-size: 1.3rem; }
  .input-group { flex-direction: column; }
  .input-group select { min-width: unset; }
  .primary-result .odds { font-size: 1.4rem; }
  .card .value { font-size: 1.05rem; }
}