:root {
  --bg: #f3efe6;
  --panel: #fffdf8;
  --ink: #1e2430;
  --accent: #1f2a44;
  --accent-2: #d98f3d;
  --border: #d9d2c5;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 15% 20%, #f6d6a8 0 12%, transparent 13%),
    radial-gradient(circle at 85% 10%, #c9e0f5 0 10%, transparent 11%),
    linear-gradient(180deg, #f7f2e8, var(--bg));
  min-height: 100vh;
}

.container {
  max-width: 760px;
  margin: 0 auto;
  padding: 24px 16px 40px;
}

.hero {
  margin-bottom: 14px;
}

.kicker {
  margin: 0;
  letter-spacing: 0.08em;
  font-weight: 700;
  color: var(--accent);
}

h1 {
  margin: 8px 0;
  font-size: clamp(1.8rem, 4vw, 2.4rem);
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.08);
  margin-top: 12px;
}

.controls {
  display: grid;
  gap: 10px;
}

label {
  font-weight: 600;
}

select,
input[type="range"],
button {
  width: 100%;
}

select,
button {
  border-radius: 10px;
  border: 1px solid var(--border);
  padding: 10px 12px;
  font-size: 1rem;
}

button {
  cursor: pointer;
  background: var(--accent);
  border-color: transparent;
  color: #fff;
  font-weight: 700;
}

button.ghost {
  background: #fff;
  border-color: var(--accent);
  color: var(--accent);
}

.actions {
  display: grid;
  gap: 8px;
}

.result h2 {
  margin: 4px 0 8px;
}

#salida {
  margin: 0;
  font-size: 1.06rem;
  line-height: 1.5;
}

.hidden {
  display: none;
}

@media (min-width: 640px) {
  .actions {
    grid-template-columns: 1fr 1fr 1fr;
  }
}