/* ============================================================
   CalcHogar — custom.css
   Paleta: Green (#16a34a base, #15803d deep, #22c55e accent)
   Sobre Pico.css classless v2
   Foco: componentes de calculadora interactiva
   ============================================================ */

:root {
  --ch-primary: #16a34a;
  --ch-primary-dark: #15803d;
  --ch-accent: #22c55e;
  --ch-bg-light: #f0fdf4;
  --ch-bg-dark: #1a2e1a;
  --ch-text: #0f172a;
  --ch-text-muted: #475569;
  --ch-border: #cbd5e1;
  --ch-success: #16a34a;
  --ch-warning: #d97706;
  --ch-error: #dc2626;
  --ch-radius: 8px;
  --ch-shadow: 0 1px 3px rgba(0,0,0,.08);
  --ch-shadow-lg: 0 4px 12px rgba(0,0,0,.12);
}

body {
  font-family: system-ui, -apple-system, 'Segoe UI', sans-serif;
  color: var(--ch-text);
  background: #fff;
  line-height: 1.65;
}

a { color: var(--ch-primary); }
a:hover { color: var(--ch-primary-dark); }

/* --- Header / Nav --- */
.site-header {
  background: var(--ch-bg-dark);
  color: #f1f5f9;
  padding: .75rem 1rem;
  position: sticky;
  top: 0;
  z-index: 100;
}
.site-header a { color: #f1f5f9; text-decoration: none; }
.site-header a:hover { color: var(--ch-accent); }
.site-title { font-size: 1.3rem; font-weight: 700; }
.site-tagline { font-size: .8rem; color: var(--ch-text-muted); display: block; }

.hamburger-toggle { display: none; }
.hamburger-btn {
  display: none; cursor: pointer; font-size: 1.5rem;
  color: #f1f5f9; background: none; border: none; padding: .25rem;
}
.main-nav { display: flex; gap: 1.25rem; align-items: center; }
.main-nav a { font-size: .9rem; font-weight: 500; }

@media (max-width: 768px) {
  .hamburger-btn { display: block; }
  .main-nav {
    display: none; flex-direction: column; gap: 0; width: 100%;
    background: var(--ch-bg-dark); position: absolute; top: 100%;
    left: 0; padding: .5rem 1rem 1rem; border-top: 1px solid #334155;
  }
  .main-nav a { padding: .5rem 0; border-bottom: 1px solid #334155; display: block; }
  .hamburger-toggle:checked ~ .main-nav { display: flex; }
  .header-inner { flex-wrap: wrap; }
}

.header-inner {
  max-width: 1100px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
}

main { max-width: 900px; margin: 0 auto; padding: 1.5rem 1rem; }

/* --- Breadcrumbs --- */
.breadcrumbs {
  font-size: .82rem; color: var(--ch-text-muted); margin-bottom: 1rem;
}
.breadcrumbs a { color: var(--ch-primary); }
.breadcrumbs .sep { margin: 0 .35rem; }

/* ============================
   CALCULATOR COMPONENTS
   ============================ */

/* Calculator card — the main interactive area */
.calculator-card {
  background: var(--ch-bg-light);
  border: 2px solid #bbf7d0;
  border-radius: var(--ch-radius);
  padding: 1.5rem;
  margin: 1.5rem 0;
  box-shadow: var(--ch-shadow);
}
.calculator-card h2 {
  color: var(--ch-primary-dark);
  margin: 0 0 1rem;
  font-size: 1.15rem;
}

/* Input groups */
.calc-input-group {
  margin-bottom: 1rem;
}
.calc-input-group label {
  display: block;
  font-weight: 600;
  font-size: .9rem;
  color: var(--ch-text);
  margin-bottom: .3rem;
}
.calc-input-group .hint {
  font-size: .78rem;
  color: var(--ch-text-muted);
  margin-bottom: .3rem;
}
.calc-input-group input[type="number"],
.calc-input-group input[type="text"],
.calc-input-group select {
  width: 100%;
  padding: .55rem .75rem;
  border: 1px solid var(--ch-border);
  border-radius: var(--ch-radius);
  font-size: .95rem;
  background: #fff;
  transition: border-color .2s;
}
.calc-input-group input:focus,
.calc-input-group select:focus {
  border-color: var(--ch-primary);
  outline: none;
  box-shadow: 0 0 0 3px rgba(22, 163, 74, .15);
}

/* Input with unit selector inline */
.input-with-unit {
  display: flex;
  gap: 0;
}
.input-with-unit input {
  border-radius: var(--ch-radius) 0 0 var(--ch-radius);
  flex: 1;
}
.input-with-unit select {
  border-radius: 0 var(--ch-radius) var(--ch-radius) 0;
  border-left: none;
  width: auto;
  min-width: 80px;
  background: var(--ch-bg-light);
  font-size: .85rem;
}

/* Calculate button */
.calc-btn {
  background: var(--ch-primary);
  color: #fff;
  border: none;
  padding: .65rem 1.5rem;
  border-radius: var(--ch-radius);
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  width: 100%;
  margin-top: .5rem;
  transition: background .2s;
}
.calc-btn:hover { background: var(--ch-primary-dark); }

/* Result display */
.calc-result {
  background: #fff;
  border: 2px solid var(--ch-primary);
  border-radius: var(--ch-radius);
  padding: 1.25rem;
  margin-top: 1.25rem;
  text-align: center;
  display: none;
}
.calc-result.visible { display: block; }
.calc-result .result-label {
  font-size: .85rem;
  color: var(--ch-text-muted);
  margin-bottom: .25rem;
}
.calc-result .result-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--ch-primary-dark);
  line-height: 1.2;
}
.calc-result .result-unit {
  font-size: 1rem;
  color: var(--ch-text-muted);
  font-weight: 500;
}
.calc-result .result-detail {
  font-size: .85rem;
  color: var(--ch-text-muted);
  margin-top: .5rem;
  text-align: left;
}

/* Result breakdown (multiple outputs) */
.result-breakdown {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: .75rem;
  margin-top: 1rem;
  text-align: center;
}
.result-item {
  background: var(--ch-bg-light);
  border: 1px solid #bbf7d0;
  border-radius: var(--ch-radius);
  padding: .75rem;
}
.result-item .item-label {
  font-size: .78rem;
  color: var(--ch-text-muted);
  margin-bottom: .15rem;
}
.result-item .item-value {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--ch-primary-dark);
}

/* Unit toggle */
.unit-toggle {
  display: inline-flex;
  border: 1px solid var(--ch-border);
  border-radius: var(--ch-radius);
  overflow: hidden;
  margin-bottom: 1rem;
}
.unit-toggle button {
  padding: .4rem .85rem;
  border: none;
  background: #fff;
  font-size: .82rem;
  cursor: pointer;
  font-weight: 500;
  color: var(--ch-text-muted);
}
.unit-toggle button.active {
  background: var(--ch-primary);
  color: #fff;
}

/* Formula explanation */
.formula-box {
  background: #f8fafc;
  border: 1px solid var(--ch-border);
  border-left: 4px solid var(--ch-primary);
  border-radius: 0 var(--ch-radius) var(--ch-radius) 0;
  padding: .85rem 1rem;
  margin: 1.25rem 0;
  font-size: .9rem;
}
.formula-box code {
  background: #e2e8f0;
  padding: .15rem .4rem;
  border-radius: 4px;
  font-size: .85rem;
}

/* Material card (product recommendation without affiliate) */
.material-card {
  background: #fff;
  border: 1px solid var(--ch-border);
  border-radius: var(--ch-radius);
  padding: 1rem;
  margin: .75rem 0;
  box-shadow: var(--ch-shadow);
}
.material-card .material-name {
  font-weight: 700;
  font-size: 1rem;
  color: var(--ch-text);
  margin-bottom: .35rem;
}
.material-card .material-specs {
  font-size: .85rem;
  color: var(--ch-text-muted);
  line-height: 1.5;
}
.material-card .material-price {
  font-weight: 600;
  color: var(--ch-primary-dark);
  margin-top: .35rem;
  display: block;
}

/* Step indicator (for multi-step calculators) */
.step-indicator {
  display: flex;
  gap: .5rem;
  margin-bottom: 1.25rem;
}
.step-dot {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .8rem;
  font-weight: 700;
  border: 2px solid var(--ch-border);
  color: var(--ch-text-muted);
  background: #fff;
}
.step-dot.active {
  background: var(--ch-primary);
  border-color: var(--ch-primary);
  color: #fff;
}
.step-dot.done {
  background: #dcfce7;
  border-color: var(--ch-primary);
  color: var(--ch-primary-dark);
}

/* Category badge */
.category-badge {
  display: inline-block;
  background: var(--ch-primary);
  color: #fff;
  border-radius: 999px;
  padding: .2rem .7rem;
  font-size: .78rem;
  font-weight: 600;
  text-decoration: none;
}
.category-badge:hover { background: var(--ch-primary-dark); color: #fff; }

/* Related tools grid */
.related-tools {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin: 1rem 0;
}
.tool-card {
  background: #fff;
  border: 1px solid var(--ch-border);
  border-radius: var(--ch-radius);
  padding: 1rem;
  box-shadow: var(--ch-shadow);
  transition: transform .15s, box-shadow .15s;
  text-decoration: none;
  color: var(--ch-text);
}
.tool-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--ch-shadow-lg);
}
.tool-card .tool-icon { font-size: 1.5rem; margin-bottom: .35rem; }
.tool-card h3 { margin: 0 0 .25rem; font-size: .95rem; }
.tool-card p { margin: 0; font-size: .82rem; color: var(--ch-text-muted); }

/* FAQ */
.faq-section details {
  border: 1px solid var(--ch-border);
  border-radius: var(--ch-radius);
  margin-bottom: .5rem;
  overflow: hidden;
}
.faq-section summary {
  padding: .65rem .85rem; font-weight: 600; cursor: pointer;
  background: var(--ch-bg-light); font-size: .92rem;
}
.faq-section details[open] summary { border-bottom: 1px solid var(--ch-border); }
.faq-section details p { padding: .65rem .85rem; margin: 0; font-size: .9rem; }

/* Newsletter CTA */
.newsletter-cta {
  background: var(--ch-bg-light);
  border: 2px solid #bbf7d0;
  border-radius: var(--ch-radius);
  padding: 1.5rem; margin: 2rem 0; text-align: center;
}
.newsletter-cta h3 { color: var(--ch-primary-dark); margin: 0 0 .5rem; font-size: 1.1rem; }
.newsletter-cta p { color: var(--ch-text-muted); font-size: .9rem; margin-bottom: 1rem; }
.newsletter-cta input[type="email"] {
  padding: .5rem .75rem; border: 1px solid var(--ch-border);
  border-radius: var(--ch-radius); font-size: .9rem; width: min(100%, 300px);
}
.newsletter-cta button {
  background: var(--ch-primary); color: #fff; border: none;
  padding: .5rem 1.25rem; border-radius: var(--ch-radius);
  font-weight: 600; cursor: pointer; font-size: .9rem; margin-top: .5rem;
}
.newsletter-cta button:hover { background: var(--ch-primary-dark); }

/* Footer */
.site-footer {
  background: var(--ch-bg-dark); color: #94a3b8;
  padding: 1.5rem 1rem; font-size: .8rem;
  text-align: center; margin-top: 3rem;
}
.site-footer a { color: #cbd5e1; }
.site-footer a:hover { color: var(--ch-accent); }

/* Hub / listing pages */
.item-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem; margin: 1.5rem 0;
}

/* Responsive */
@media (max-width: 600px) {
  .calculator-card { padding: 1rem; }
  .calc-result .result-value { font-size: 1.5rem; }
  .result-breakdown { grid-template-columns: 1fr 1fr; }
  .related-tools { grid-template-columns: 1fr; }
  .input-with-unit { flex-direction: column; }
  .input-with-unit input { border-radius: var(--ch-radius) var(--ch-radius) 0 0; }
  .input-with-unit select { border-radius: 0 0 var(--ch-radius) var(--ch-radius); border-left: 1px solid var(--ch-border); border-top: none; }
}

/* Utilities */
.text-muted { color: var(--ch-text-muted); }
.text-small { font-size: .82rem; }
.mt-1 { margin-top: .5rem; }
.mt-2 { margin-top: 1rem; }
.mb-1 { margin-bottom: .5rem; }
.mb-2 { margin-bottom: 1rem; }