:root {
  --cpo-teal: #00a99d;
  --cpo-magenta: #a83c74;
  --cpo-pink: #e8a8c1;
  --dark-text: #2c3e50;
  --light-color: #ffffff;
  --body-bg: #f4f6f9;
  --border-color: #dee2e6;
}

body {
  font-family: "Segoe UI", Roboto, Arial, sans-serif;
  background-color: var(--body-bg);
  color: var(--dark-text);
  display: flex;
  justify-content: center;
  padding: 20px;
}

.calculator-container {
  background-color: var(--light-color);
  padding: 20px 30px;
  border-radius: 12px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
  width: 100%;
  max-width: 800px;
  min-height: 80vh;
}

/* Cabecera */
.main-header {
  text-align: center;
  margin-bottom: 30px;
}

.logo {
  max-width: 100px;
  margin-bottom: 15px;
}

.instrucciones-wrapper {
  margin: 20px 0;
  text-align: center;
}

.instrucciones {
  max-width: 600px;
  margin: 15px auto;
  text-align: left;
  background: #f9f9f9;
  padding: 15px 20px;
  border-radius: 8px;
  border: 1px solid #ddd;
  font-size: 0.95em;
}

.instrucciones h3 {
  margin-top: 0;
  color: #00a99d;
}

.instrucciones.oculto {
  display: none;
}


.main-header h1 {
  margin: 0;
}

.main-header h2 {
  margin: 5px 0 0 0;
  color: var(--cpo-magenta);
  font-size: 1.2em;
}

/* Formulario */
.config-section {
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 20px;
}

.config-section legend {
  font-weight: bold;
  padding: 0 10px;
  color: var(--cpo-teal);
}

.input-row {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.input-group {
  flex: 1;
  min-width: 150px;
}

.input-group label {
  display: block;
  margin-bottom: 6px;
  font-size: 14px;
  font-weight: 500;
}

.input-group input {
  width: 100%;
  padding: 10px;
  border: 1px solid var(--border-color);
  border-radius: 5px;
  box-sizing: border-box;
}

/* Fila de Diseño */
.design-row {
  display: flex;
  align-items: flex-end;
  gap: 15px;
  padding: 15px;
  background-color: #f8f9fa;
  border-radius: 6px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.design-row .reps {
  flex-grow: 0.5;
  min-width: 80px;
}

/* Botones */
button {
  padding: 12px 25px;
  font-size: 16px;
  font-weight: bold;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}

/* Botones principales */
#calculate-btn,
#clear-all-btn {
  width: 100%;
  margin-bottom: 10px;
}

#calculate-btn {
  background-color: var(--cpo-teal);
  color: white;
}
#calculate-btn:hover {
  filter: brightness(110%);
}

.secondary-btn {
  background-color: var(--cpo-magenta);
  color: white;
}
.secondary-btn:hover {
  filter: brightness(110%);
}

.tertiary-btn {
  background-color: transparent;
  color: var(--cpo-teal);
  border: 2px dashed var(--cpo-teal);
  width: auto;
}
.tertiary-btn:hover {
  background-color: #e0f8f6;
}

.delete-btn {
  background-color: var(--cpo-magenta);
  color: white;
  padding: 10px 15px;
  width: auto;
}
.delete-btn:hover {
  filter: brightness(110%);
}

.controls {
  text-align: center;
  margin-top: 5px;
}

/* Resultados */
#result-area {
  margin-top: 20px;
  background-color: var(--dark-text);
  color: white;
  padding: 20px;
  border-radius: 8px;
  text-align: center;
}

.result-display {
  display: flex;
  justify-content: space-around;
  font-size: 1.2em;
  font-weight: bold;
}

/* Visualización */
#visualization-area {
  margin-top: 20px;
}
#dtf-canvas {
  width: 100%;
  border: 2px solid var(--border-color);
}

.hidden {
  display: none;
}

/* Banner Publicitario */
.banner-publicidad {
  width: 100%;
  margin: 20px 0;
  text-align: center;
}

.banner-publicidad img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.footer-cpo {
  text-align: center;
  font-size: 0.9em;
  color: #666;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid #ccc;
}
.footer-cpo a {
  color: var(--cpo-teal);
  text-decoration: none;
}
.footer-cpo a:hover {
  text-decoration: underline;
}