:root {
  --bg: #f3f5f9;
  --surface: #ffffff;
  --surface-muted: #f8fafc;
  --text: #0f172a;
  --text-muted: #475569;
  --border: #dbe2ea;
  --border-focus: #2563eb;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-soft: #eff6ff;
  --success: #16a34a;
  --success-soft: #f0fdf4;
  --warning: #d97706;
  --danger: #dc2626;
  --danger-soft: #fef2f2;
  --radius: 12px;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.07);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  padding-bottom: 64px;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Top Navbar */
.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 30;
}

.topbar-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 16px;
  color: var(--text);
}

.brand-dot {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, #1e3a8a, #2563eb);
  color: #ffffff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 800;
}

.nav-links {
  display: flex;
  gap: 8px;
  align-items: center;
}

.nav-link {
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  transition: all 0.15s ease;
}

.nav-link:hover {
  background: var(--surface-muted);
  color: var(--text);
  text-decoration: none;
}

.nav-link.active {
  background: var(--primary-soft);
  color: var(--primary);
}

.container {
  max-width: 960px;
  margin: 28px auto 0;
  padding: 0 16px;
}

.container-wide {
  max-width: 1120px;
  margin: 28px auto 0;
  padding: 0 16px;
}

/* Header Card */
.header-card {
  background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 100%);
  color: #ffffff;
  border-radius: var(--radius);
  padding: 26px 30px;
  margin-bottom: 22px;
  box-shadow: var(--shadow);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.header-card .badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.3);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 8px;
}

.header-card h1 {
  margin: 0 0 4px;
  font-size: 23px;
  font-weight: 700;
}

.header-card p {
  margin: 0;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.9);
}

.header-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn-ghost-light {
  background: rgba(255, 255, 255, 0.16);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 8px;
  padding: 9px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn-ghost-light:hover {
  background: rgba(255, 255, 255, 0.26);
  text-decoration: none;
}

/* Cards & Form */
.card,
.form-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.section {
  padding: 26px 30px;
  border-bottom: 1px solid var(--border);
}

.section:last-of-type {
  border-bottom: none;
}

.section-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.section-num {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--primary-soft);
  color: var(--primary);
  font-weight: 700;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.section-title {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
}

.section-subtitle {
  margin: 2px 0 0;
  font-size: 13px;
  color: var(--text-muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
}

.col-12 { grid-column: span 12; }
.col-8 { grid-column: span 8; }
.col-6 { grid-column: span 6; }
.col-4 { grid-column: span 4; }
.col-3 { grid-column: span 3; }

@media (max-width: 720px) {
  .section {
    padding: 20px 18px;
  }
  .col-8, .col-6, .col-4, .col-3 {
    grid-column: span 12;
  }
}

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

label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}

.req {
  color: var(--danger);
  margin-left: 2px;
}

.opt {
  color: var(--text-muted);
  font-weight: 400;
  font-size: 12px;
  margin-left: 4px;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"],
input[type="date"],
input[type="url"],
input[type="search"],
select,
textarea {
  width: 100%;
  padding: 10px 12px;
  font-size: 14px;
  font-family: inherit;
  color: var(--text);
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 8px;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.14);
}

textarea {
  resize: vertical;
  min-height: 86px;
}

.hint {
  font-size: 12px;
  color: var(--text-muted);
}

.error-msg {
  font-size: 12px;
  color: var(--danger);
  display: none;
}

.error-msg.visible {
  display: block;
}

.alert {
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 18px;
  display: none;
}

.alert.visible {
  display: block;
}

.alert-error {
  background: var(--danger-soft);
  color: var(--danger);
  border: 1px solid #fecaca;
}

.alert-success {
  background: var(--success-soft);
  color: var(--success);
  border: 1px solid #bbf7d0;
}

.input-group {
  position: relative;
  display: flex;
  align-items: center;
}

.input-group input {
  padding-right: 72px;
}

.toggle-pass {
  position: absolute;
  right: 8px;
  background: var(--surface-muted);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 6px;
  cursor: pointer;
}

.strength-bar {
  height: 5px;
  border-radius: 999px;
  background: #e2e8f0;
  overflow: hidden;
  margin-top: 2px;
}

.strength-fill {
  height: 100%;
  width: 0%;
  background: var(--danger);
  transition: width 0.2s ease, background 0.2s ease;
}

.phone-wrap {
  display: flex;
  gap: 8px;
}

.phone-wrap select {
  width: 128px;
  flex-shrink: 0;
}

/* Avatar */
.avatar-box {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 14px;
  background: var(--surface-muted);
  border: 1px dashed var(--border);
  border-radius: 10px;
}

.avatar-preview {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #e2e8f0;
  color: #64748b;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 18px;
  overflow: hidden;
  flex-shrink: 0;
  border: 2px solid #ffffff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.avatar-preview img,
.avatar-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.avatar-thumb {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 13px;
  overflow: hidden;
  flex-shrink: 0;
  border: 1px solid var(--border);
}

/* Pills */
.pill-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pill-item {
  position: relative;
}

.pill-item input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.pill-item span {
  display: inline-block;
  padding: 7px 14px;
  font-size: 13px;
  font-weight: 500;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #ffffff;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
}

.pill-item input:checked + span {
  background: var(--primary-soft);
  border-color: var(--primary);
  color: var(--primary);
  font-weight: 600;
}

/* Plan Cards */
.plan-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

@media (max-width: 720px) {
  .plan-grid {
    grid-template-columns: 1fr;
  }
}

.plan-card {
  position: relative;
  cursor: pointer;
}

.plan-card input {
  position: absolute;
  opacity: 0;
}

.plan-content {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
  background: #ffffff;
  transition: all 0.15s ease;
  height: 100%;
}

.plan-card input:checked + .plan-content {
  border-color: var(--primary);
  background: var(--primary-soft);
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15);
}

.plan-name {
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 2px;
}

.plan-price {
  font-size: 18px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 4px;
}

.plan-desc {
  font-size: 12px;
  color: var(--text-muted);
}

/* Checkboxes */
.check-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: var(--text);
  cursor: pointer;
}

.check-row input[type="checkbox"] {
  width: 17px;
  height: 17px;
  margin-top: 2px;
  accent-color: var(--primary);
  cursor: pointer;
  flex-shrink: 0;
}

.captcha-mock {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface-muted);
  max-width: 340px;
}

.captcha-brand {
  text-align: right;
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.2;
}

/* Footer & Buttons */
.form-footer {
  padding: 20px 30px;
  background: var(--surface-muted);
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.btn-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn {
  border: none;
  border-radius: 8px;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  text-decoration: none;
}

.btn:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.btn-sm {
  padding: 6px 11px;
  font-size: 12px;
  border-radius: 7px;
}

.btn-secondary {
  background: #ffffff;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: #f1f5f9;
  text-decoration: none;
}

.btn-primary {
  background: var(--primary);
  color: #ffffff;
}

.btn-primary:hover {
  background: var(--primary-hover);
  text-decoration: none;
}

.btn-danger {
  background: #ffffff;
  color: var(--danger);
  border: 1px solid #fecaca;
}

.btn-danger:hover {
  background: var(--danger-soft);
}

/* Stats & Table (registros.php) */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 20px;
}

@media (max-width: 820px) {
  .kpi-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .kpi-grid {
    grid-template-columns: 1fr;
  }
}

.kpi-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.04);
}

.kpi-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
}

.kpi-value {
  font-size: 26px;
  font-weight: 800;
  margin-top: 4px;
  color: var(--text);
}

.toolbar {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
  background: var(--surface-muted);
}

.toolbar-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  flex: 1;
}

.toolbar-filters input[type="search"] {
  max-width: 300px;
}

.toolbar-filters select {
  width: auto;
  min-width: 150px;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th, td {
  padding: 13px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

th {
  background: var(--surface-muted);
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  white-space: nowrap;
}

tbody tr:hover {
  background: #f8fafc;
}

.user-cell {
  display: flex;
  align-items: center;
  gap: 10px;
}

.badge-pill {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
}

.badge-gratis {
  background: #f1f5f9;
  color: #475569;
}

.badge-pro {
  background: #dbeafe;
  color: #1d4ed8;
}

.badge-empresa {
  background: #ede9fe;
  color: #6d28d9;
}

.empty-state {
  padding: 48px 20px;
  text-align: center;
  color: var(--text-muted);
}

/* Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.55);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 50;
}

.modal-backdrop.open {
  display: flex;
}

.modal {
  background: #ffffff;
  border-radius: 14px;
  max-width: 720px;
  width: 100%;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 24px 48px rgba(15, 23, 42, 0.25);
  overflow: hidden;
}

.modal-header {
  padding: 16px 22px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.modal-header h3 {
  margin: 0;
  font-size: 17px;
}

.modal-body {
  padding: 20px 22px;
  overflow-y: auto;
}

.modal-footer {
  padding: 14px 22px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.detail-section {
  margin-bottom: 18px;
}

.detail-section h4 {
  margin: 0 0 10px;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--primary);
  border-bottom: 1px solid var(--border);
  padding-bottom: 5px;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px 16px;
}

@media (max-width: 600px) {
  .detail-grid {
    grid-template-columns: 1fr;
  }
}

.detail-item-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
}

.detail-item-val {
  font-size: 13px;
  color: var(--text);
  word-break: break-word;
}