:root {
  /* Fondo igual al del logo para que la imagen se funda con la página */
  --bg: #050b19;
  --card: #0a1530;
  --card-border: rgba(71, 177, 255, 0.16);
  --input: #050d20;
  --input-border: rgba(71, 177, 255, 0.28);
  --blue: #2f9bff;
  --blue-light: #47d0fe;
  --text: #e8f1ff;
  --muted: #8ea3c4;
  --error: #ff7a8a;
  color-scheme: dark;
}

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

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  padding: 0 16px;
}

.header {
  text-align: center;
  padding: 24px 0 8px;
}

.logo {
  display: block;
  width: min(100%, 560px);
  height: auto;
  margin: 0 auto;
  /* Difumina los bordes del PNG para que no se note el recorte */
  -webkit-mask-image: radial-gradient(ellipse 72% 70% at 50% 50%, #000 62%, transparent 100%);
  mask-image: radial-gradient(ellipse 72% 70% at 50% 50%, #000 62%, transparent 100%);
}

.tagline {
  margin: 4px 0 0;
  color: var(--muted);
}

.layout {
  display: grid;
  gap: 16px;
  max-width: 960px;
  margin: 16px auto 0;
}

@media (min-width: 820px) {
  .layout {
    grid-template-columns: 1.35fr 1fr;
    align-items: start;
  }

  .result {
    position: sticky;
    top: 16px;
  }
}

.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 20px;
}

.form {
  display: grid;
  gap: 22px;
}

.field {
  border: 0;
  margin: 0;
  padding: 0;
  min-width: 0;
}

.label {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0;
  font-weight: 700;
  font-size: 1.05rem;
}

.step {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  flex: none;
  border-radius: 6px;
  background: linear-gradient(160deg, var(--blue-light), var(--blue));
  color: #04122b;
  font-weight: 800;
  font-size: 0.95rem;
}

.hint {
  margin: 4px 0 10px 36px;
  color: var(--muted);
  font-size: 0.92rem;
}

.hint b {
  color: var(--text);
}

.input-wrap {
  position: relative;
  margin-left: 36px;
}

.input-wrap input {
  width: 100%;
  padding: 12px 70px 12px 14px;
  border: 1px solid var(--input-border);
  border-radius: 10px;
  background: var(--input);
  color: var(--text);
  font: inherit;
  font-size: 1.1rem;
}

.input-wrap input::placeholder {
  color: #4d6182;
}

.input-wrap input:focus {
  outline: none;
  border-color: var(--blue-light);
  box-shadow: 0 0 0 3px rgba(71, 208, 254, 0.2);
}

.input-wrap input[aria-invalid='true'] {
  border-color: var(--error);
}

.unit {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  pointer-events: none;
}

.time {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-left: 36px;
}

.time .input-wrap {
  margin-left: 0;
}

.time .input-wrap input {
  padding-right: 50px;
}

.error {
  margin: 6px 0 0 36px;
  color: var(--error);
  font-size: 0.88rem;
}

.reset {
  justify-self: start;
  margin-left: 36px;
  padding: 10px 16px;
  border: 1px solid var(--input-border);
  border-radius: 10px;
  background: transparent;
  color: var(--blue-light);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.reset:hover,
.reset:focus-visible {
  background: rgba(71, 208, 254, 0.08);
}

.result-title {
  margin: 0 0 8px;
  font-size: 1.15rem;
  color: var(--blue-light);
}

.rows {
  margin: 0;
}

.row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--card-border);
}

.row dt small {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
}

.row dd {
  margin: 0;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.row.total {
  font-weight: 700;
}

.price {
  margin-top: 18px;
  padding: 16px;
  border-radius: 12px;
  background: linear-gradient(160deg, rgba(71, 208, 254, 0.16), rgba(47, 155, 255, 0.08));
  border: 1px solid rgba(71, 208, 254, 0.35);
  text-align: center;
}

.price-label {
  display: block;
  color: var(--muted);
  font-size: 0.95rem;
}

.price-value {
  display: block;
  font-size: clamp(2.4rem, 9vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--blue-light);
  text-shadow: 0 0 24px rgba(71, 208, 254, 0.35);
  font-variant-numeric: tabular-nums;
}

.footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
  padding: 32px 0 24px;
}

.footer a {
  color: var(--blue-light);
}