/* pages/calculos.css - Versión Compacta */
:root {
  --primary: #2e7d32;
  --primary-dark: #1b5e20;
  --primary-light: #81c784;
  --gray-100: #f8f9fa;
  --gray-200: #e9ecef;
  --gray-600: #6c757d;
  --gray-800: #343a40;
  --white: #afd8df;
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --radius: 12px;
  --radius-sm: 6px;
}

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

body {
  font-family: 'Segoe UI', 'Inter', system-ui, sans-serif;
  background: linear-gradient(135deg, #f5f7fa 0%, #e9ecef 100%);
  min-height: 100vh;
  color: var(--gray-800);
}

/* Navigation */
.nav-wrapper {
  background: linear-gradient(135deg, #1a3c1a 0%, #2e7d32 100%);
  box-shadow: var(--shadow-md);
  position: sticky;
  top: 0;
  z-index: 100;
}

#header {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0.75rem 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

#logo h1 {
  margin: 0;
  font-size: 1.25rem;
}

#logo a {
  color: var(--white);
  text-decoration: none;
  font-weight: 700;
}

#logo span {
  color: #ffb74d;
}

#mainav ul {
  list-style: none;
  display: flex;
  gap: 1rem;
  margin: 0;
  padding: 0;
}

#mainav ul li a {
  color: var(--white);
  text-decoration: none;
  font-weight: 500;
  padding: 0.4rem 0.8rem;
  border-radius: 50px;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.875rem;
}

#mainav ul li a:hover {
  background: rgba(255,255,255,0.15);
}

/* Hero Section Compacto */
.hero-calculator {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  padding: 1.5rem 20px;
  text-align: center;
}

.hero-content h1 {
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
  color: var(--white);
}

.hero-content h1 i {
  margin-right: 0.5rem;
}

.hero-content p {
  font-size: 0.875rem;
  opacity: 0.9;
  color: var(--white);
}

/* Calculator Container */
.calculator-container {
  max-width: 900px;
  margin: 1.5rem auto;
  padding: 0 20px;
}

/* Calculator Cards Compactos */
.calculator-card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  margin-bottom: 1rem;
  overflow: hidden;
}

.card-header {
  background: #f8f9fa;
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card-header i {
  font-size: 1.25rem;
  color: var(--primary);
}

.card-header h2 {
  font-size: 1rem;
  margin: 0;
  color: var(--gray-800);
  font-weight: 600;
}

.card-content {
  padding: 1rem;
}

/* Form Rows Compactos */
.form-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  align-items: flex-end;
}

.form-row:last-child {
  margin-bottom: 0;
}

.form-group {
  flex: 1;
  min-width: 100px;
}

.form-group.compact {
  flex: 1;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  color: var(--gray-600);
  margin-bottom: 0.2rem;
}

.form-group small {
  font-size: 0.65rem;
  color: var(--gray-600);
  display: inline-block;
  margin-top: 0.2rem;
}

.form-control {
  width: 100%;
  padding: 0.5rem 0.6rem;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  font-size: 1.0rem;
  background: var(--white);
  cursor: pointer;
  transition: all 0.3s ease;
}

.form-control.compact {
  padding: 0.45rem 0.55rem;
  font-size: 1.0rem;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(46,125,50,0.1);
}

.result-group {
  min-width: 110px;
}

.result-input {
  width: 100%;
  padding: 0.5rem 0.6rem;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  background: #e8f5e9;
  font-weight: 600;
  color: var(--primary-dark);
  text-align: center;
}

.result-input.compact {
  padding: 0.45rem 0.55rem;
  font-size: 0.8rem;
}

.btn-calc {
  background: var(--primary);
  color: var(--white);
  border: none;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  width: 100%;
}

.btn-calc.compact {
  padding: 0.45rem 0.8rem;
  font-size: 0.7rem;
}

.btn-calc:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

/* Info Box Compacto */
.info-box {
  background: #e3f2fd;
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.75rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.7rem;
  color: var(--gray-700);
}

.info-box i {
  color: var(--primary);
  font-size: 0.8rem;
}

.info-box.compact {
  padding: 0.4rem 0.6rem;
  font-size: 0.7rem;
}

/* Tips Card Compacto */
.tips-card {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  border-radius: var(--radius);
  padding: 0.6rem 1rem;
  margin-top: 0.5rem;
}

.tips-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tips-header i {
  font-size: 0.9rem;
  color: #ffb74d;
}

.tips-header span {
  font-size: 1.0rem;
  color: var(--white);
  line-height: 1.4;
}

.tips-card.compact {
  padding: 0.5rem 0.8rem;
}

/* Footer */
.footer-calc {
  background: var(--gray-800);
  color: var(--white);
  text-align: center;
  padding: 1rem;
  margin-top: 1rem;
}

.footer-content p {
  margin: 0;
  font-size: 0.7rem;
  opacity: 0.8;
}

/* Responsive */
@media (max-width: 768px) {
  .form-row {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .form-group {
    width: 100%;
  }
  
  .result-group {
    min-width: auto;
  }
  
  .btn-calc {
    width: 100%;
  }
  
  .hero-content h1 {
    font-size: 1.25rem;
  }
  
  #header {
    flex-direction: column;
    text-align: center;
    gap: 0.5rem;
    padding: 0.5rem 20px;
  }
  
  #mainav ul {
    justify-content: center;
  }
  
  .calculator-container {
    margin: 1rem auto;
  }
  
  .card-header {
    padding: 0.6rem 1rem;
  }
  
  .card-content {
    padding: 0.75rem;
  }
  
  .info-box {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .form-group label {
    font-size: 0.65rem;
  }
  
  .form-control, .result-input {
    font-size: 0.75rem;
    padding: 0.4rem 0.5rem;
  }
  
  .btn-calc {
    font-size: 0.7rem;
    padding: 0.4rem 0.8rem;
  }
  
  .tips-header span {
    font-size: 0.65rem;
  }
}