/* ── PetsGuía — Estilos compartidos para herramientas ── */
:root {
  --bg: #faf7f2;
  --surface: #ffffff;
  --surface2: #f2ede4;
  --ink: #1a1510;
  --ink2: #5a5040;
  --accent: #c8541a;
  --accent2: #e8a44a;
  --green: #3a7d44;
  --border: #e0d8cc;
  --radius: 12px;
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'DM Sans', sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ── HEADER ── */
header {
  background: var(--ink);
  color: var(--bg);
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--accent2);
  letter-spacing: -0.5px;
}
.logo span { color: var(--bg); }

nav { display: flex; gap: 24px; }
nav a {
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255,255,255,0.75);
  transition: color 0.2s;
}
nav a:hover { color: var(--accent2); }

/* ── FOOTER ── */
footer {
  background: var(--ink);
  color: rgba(255,255,255,0.6);
  padding: 40px 24px;
  margin-top: 48px;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent2);
}

.footer-links { display: flex; gap: 20px; font-size: 0.85rem; }
.footer-links a:hover { color: white; }
.footer-copy { font-size: 0.8rem; }

/* ── TOOL CONTAINER ── */
.tool-container {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── TOOL HERO ── */
.tool-hero {
  background: var(--ink);
  color: var(--bg);
  padding: 48px 24px 56px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.tool-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 60% 0%, rgba(200,84,26,0.25) 0%, transparent 60%),
              radial-gradient(ellipse at 20% 100%, rgba(232,164,74,0.15) 0%, transparent 50%);
}

.tool-hero-content { position: relative; max-width: 700px; margin: 0 auto; }

.tool-badge {
  display: inline-block;
  background: var(--accent);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 14px;
  border-radius: 100px;
  margin-bottom: 16px;
}

.tool-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 12px;
}

.tool-hero h1 em {
  font-style: italic;
  color: var(--accent2);
}

.tool-hero p {
  font-size: 1rem;
  color: rgba(255,255,255,0.7);
  max-width: 520px;
  margin: 0 auto;
}

/* ── BREADCRUMB ── */
.breadcrumb {
  padding: 16px 24px;
  font-size: 0.82rem;
  color: var(--ink2);
  max-width: 780px;
  margin: 0 auto;
}
.breadcrumb a { color: var(--accent); }
.breadcrumb a:hover { text-decoration: underline; }

/* ── TOOL CARD (form) ── */
.tool-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  margin-top: 32px;
}

.tool-card h2 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border);
}

/* ── FORM ELEMENTS ── */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
}

.form-group small {
  display: block;
  font-size: 0.78rem;
  color: var(--ink2);
  margin-top: 4px;
}

.form-select,
.form-input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--ink);
  background: var(--bg);
  transition: border-color 0.2s;
  appearance: none;
}

.form-select:focus,
.form-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(200,84,26,0.12);
}

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%235a5040' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* ── BUTTON ── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 14px 24px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
}
.btn-primary:hover { background: #b84515; }
.btn-primary:active { transform: scale(0.98); }

/* ── RESULT CARD ── */
.result-card {
  background: var(--surface);
  border: 2px solid var(--accent);
  border-radius: var(--radius);
  padding: 32px;
  margin-top: 24px;
  display: none;
}

.result-card.visible { display: block; }

.result-main {
  text-align: center;
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.result-number {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 4.5rem);
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.result-unit {
  font-size: 1.1rem;
  color: var(--ink2);
  margin-top: 4px;
}

.result-label {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  margin-top: 12px;
}

/* ── RESULT DETAILS ── */
.result-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.result-detail {
  background: var(--bg);
  border-radius: 8px;
  padding: 16px;
}

.result-detail-label {
  font-size: 0.78rem;
  color: var(--ink2);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
}

.result-detail-value {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  margin-top: 4px;
}

/* ── LIFE STAGE BAR ── */
.stage-bar {
  margin: 24px 0;
}

.stage-bar-label {
  font-size: 0.82rem;
  color: var(--ink2);
  margin-bottom: 8px;
  font-weight: 600;
}

.stage-bar-track {
  height: 12px;
  border-radius: 6px;
  background: var(--surface2);
  overflow: hidden;
  display: flex;
}

.stage-bar-fill {
  height: 100%;
  transition: width 0.6s ease;
  border-radius: 6px;
}

/* ── INFO SECTIONS ── */
.tool-info {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  margin-top: 24px;
}

.tool-info h2 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.tool-info p {
  font-size: 0.9rem;
  color: var(--ink2);
  line-height: 1.7;
  margin-bottom: 12px;
}

.tool-info ul {
  padding-left: 20px;
  margin-bottom: 12px;
}

.tool-info ul li {
  font-size: 0.9rem;
  color: var(--ink2);
  line-height: 1.6;
  margin-bottom: 6px;
}

/* ── CTA CARD ── */
.cta-card {
  background: var(--ink);
  color: var(--bg);
  border-radius: var(--radius);
  padding: 32px;
  margin-top: 24px;
  text-align: center;
}

.cta-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.cta-card p {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.65);
  margin-bottom: 16px;
}

.cta-card a {
  display: inline-block;
  background: var(--accent);
  color: white;
  padding: 10px 24px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: background 0.2s;
}
.cta-card a:hover { background: #b84515; }

/* ── TOOL GRID (hub page) ── */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
  padding: 32px 0;
}

.tool-grid-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.2s, box-shadow 0.2s;
  display: flex;
  flex-direction: column;
}

.tool-grid-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.08);
}

.tool-grid-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.tool-grid-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.tool-grid-card p {
  font-size: 0.85rem;
  color: var(--ink2);
  line-height: 1.5;
  flex: 1;
}

.tool-grid-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent);
  margin-top: 16px;
}
.tool-grid-link::after { content: '→'; transition: transform 0.2s; }
.tool-grid-card:hover .tool-grid-link::after { transform: translateX(4px); }

/* ── FAQ ACCORDION ── */
.faq-section { margin-top: 24px; }

.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 8px;
  overflow: hidden;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 18px 20px;
  border: none;
  background: none;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  text-align: left;
}

.faq-question::after {
  content: '+';
  font-size: 1.3rem;
  color: var(--ink2);
  transition: transform 0.2s;
  flex-shrink: 0;
  margin-left: 12px;
}

.faq-item.open .faq-question::after {
  content: '−';
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer-inner {
  padding: 0 20px 18px;
  font-size: 0.88rem;
  color: var(--ink2);
  line-height: 1.65;
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  nav { display: none; }
  .form-row { grid-template-columns: 1fr; }
  .result-details { grid-template-columns: 1fr; }
  .tool-card, .result-card, .tool-info, .cta-card { padding: 24px; }
  .tools-grid { grid-template-columns: 1fr; }
}