:root {
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-text: #1e293b;
  --color-muted: #64748b;
  --color-border: #e2e8f0;
  --color-bg: #f8fafc;
  --color-card: #ffffff;
  --color-danger: #ef4444;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(15, 23, 42, 0.08), 0 1px 2px rgba(15, 23, 42, 0.06);
  font-size: 16px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
}

.page {
  max-width: 880px;
  margin: 0 auto;
  padding: 32px 20px 80px;
}

.page-header {
  text-align: center;
  margin-bottom: 28px;
}

.page-header h1 {
  font-size: 1.9rem;
  margin: 0 0 8px;
}

.page-header p {
  color: var(--color-muted);
  max-width: 560px;
  margin: 0 auto;
}

/* Progress */
.progress-wrap { margin-bottom: 28px; }

.progress-bar {
  height: 6px;
  background: var(--color-border);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 14px;
}

.progress-fill {
  height: 100%;
  width: 12.5%;
  background: var(--color-primary);
  transition: width .3s ease;
}

.steps-nav {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 0;
  margin: 0;
  justify-content: center;
}

.steps-nav li {
  font-size: .78rem;
  color: var(--color-muted);
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
}

.steps-nav li.active {
  color: #fff;
  background: var(--color-primary);
  border-color: var(--color-primary);
  font-weight: 600;
}

.steps-nav li.done {
  color: var(--color-primary-dark);
  border-color: var(--color-primary);
}

/* Form / steps */
form { background: transparent; }

.step { display: none; background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); animation: fadeIn .25s ease; }
.step.active { display: block; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.step h2 { margin-top: 0; font-size: 1.3rem; }
.step h3 { font-size: 1.05rem; margin: 0; }

.step-help { color: var(--color-muted); font-size: .9rem; margin-top: -8px; }

.grid { display: grid; gap: 16px; margin-bottom: 4px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

@media (max-width: 620px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
}

.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }

label { font-size: .88rem; font-weight: 600; color: var(--color-text); }

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="url"],
input[type="number"],
input[type="password"],
input[type="file"],
select,
textarea {
  font-family: inherit;
  font-size: .95rem;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: #fff;
  color: var(--color-text);
  width: 100%;
}

textarea { resize: vertical; }

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, .15);
}

.color-field input[type="color"] {
  width: 100%;
  height: 44px;
  padding: 4px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  cursor: pointer;
}

.radio-row { display: flex; gap: 18px; }
.radio-row label { display: flex; align-items: center; gap: 6px; font-weight: 500; }

.checkbox-inline label { display: flex; align-items: center; gap: 8px; font-weight: 500; }
.checkbox-inline input { width: 16px; height: 16px; }

.checkbox-toggle-grid { align-items: start; }

.toggle-target { background: #f1f5f9; padding: 14px; border-radius: 8px; }

/* Checkbox grid (secciones) */
.checkbox-grid { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 760px) { .checkbox-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .checkbox-grid { grid-template-columns: 1fr; } }

.checkbox-card {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 12px;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}

.checkbox-card:hover { border-color: var(--color-primary); }

.checkbox-card input { margin-top: 3px; }

.checkbox-card:has(input:checked) {
  border-color: var(--color-primary);
  background: #eff6ff;
}

.checkbox-card span { display: flex; flex-direction: column; gap: 2px; }
.checkbox-card small { color: var(--color-muted); font-weight: 400; }

/* Repeatable blocks */
.repeatable-block { margin-bottom: 24px; border-top: 1px solid var(--color-border); padding-top: 18px; }
.repeatable-block:first-of-type { border-top: none; padding-top: 0; }

.repeatable-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }

.btn-add {
  background: #eff6ff;
  color: var(--color-primary-dark);
  border: 1px solid var(--color-primary);
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: .85rem;
  font-weight: 600;
}
.btn-add:hover { background: #dbeafe; }

.repeatable-row {
  position: relative;
  border: 1px dashed var(--color-border);
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 12px;
  background: #fbfcfe;
}

.btn-remove {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: none;
  background: var(--color-danger);
  color: #fff;
  font-size: 1rem;
  cursor: pointer;
  line-height: 1;
}

.empty-hint { color: var(--color-muted); font-size: .85rem; font-style: italic; }

/* Review */
.review-summary { background: #f8fafc; border: 1px solid var(--color-border); border-radius: 8px; padding: 16px 18px; margin-bottom: 20px; font-size: .92rem; }
.review-summary dt { font-weight: 600; color: var(--color-muted); margin-top: 10px; }
.review-summary dt:first-child { margin-top: 0; }
.review-summary dd { margin: 2px 0 0; }

/* Nav buttons */
.form-nav {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 24px;
}

.btn-primary, .btn-secondary {
  padding: 12px 26px;
  border-radius: 8px;
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
}

.btn-primary { background: var(--color-primary); color: #fff; margin-left: auto; }
.btn-primary:hover { background: var(--color-primary-dark); }

.btn-secondary { background: #fff; color: var(--color-text); border: 1px solid var(--color-border); }
.btn-secondary:disabled { opacity: .4; cursor: not-allowed; }

.field.invalid input,
.field.invalid select,
.field.invalid textarea { border-color: var(--color-danger); }

.error-text { color: var(--color-danger); font-size: .78rem; }