:root {
  --bg: #f8fafc;
  --bg-accent: #f1f5f9;
  --surface: #ffffff;
  --surface-muted: #f8fafc;
  --sidebar-bg: #f8fafc;
  --sidebar-border: #e2e8f0;
  --text: #0f172a;
  --text-soft: #64748b;
  --line: #e2e8f0;
  --primary-strong: #0f172a;
  --accent: #14b8a6;
  --accent-soft: #ccfbf1;
  --danger: #dc2626;
  --success: #16a34a;
  --warning: #d97706;
  --shadow-md: 0 2px 12px rgba(15, 23, 42, 0.06);
  --radius-xl: 12px;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }

.panel-shell {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  min-height: 100vh;
}

.panel-sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--sidebar-border);
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px 16px 18px;
  border-bottom: 1px solid var(--line);
}

.sidebar-logo-mark,
.sidebar-client-avatar {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 800;
}

.sidebar-logo-name,
.sidebar-client-name {
  font-size: 14px;
  font-weight: 700;
}

.sidebar-nav {
  flex: 1;
  padding: 12px 8px;
}

.nav-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-group-label,
.eyebrow,
.page-breadcrumb {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-soft);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 12px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--text-soft);
  text-align: left;
}

.nav-link:hover { background: var(--bg-accent); color: var(--primary-strong); }
.nav-link.active { background: var(--primary-strong); color: #fff; }
.nav-bullet {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: currentColor;
}

.sidebar-footer {
  padding: 12px 8px 16px;
  border-top: 1px solid var(--line);
}

.sidebar-client {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--bg-accent);
}

.sidebar-client-sub {
  color: var(--text-soft);
  font-size: 12px;
}

.panel-content { min-width: 0; }
.panel-section { display: none; padding: 28px 32px 48px; }
.panel-section.is-active { display: block; }

.page-header {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 28px;
}

.page-title {
  margin: 6px 0 4px;
  font-size: 30px;
  line-height: 1.1;
}

.page-subtitle { color: var(--text-soft); max-width: 840px; }
.page-header-actions { display: flex; gap: 10px; }

.btn-save,
.btn-outline {
  border-radius: 10px;
  padding: 10px 16px;
  border: 1px solid var(--line);
  background: #fff;
  font-weight: 600;
}

.btn-save {
  background: var(--primary-strong);
  color: #fff;
  border-color: var(--primary-strong);
}

.panel-grid {
  display: grid;
  gap: 20px;
  margin-bottom: 20px;
}

.panel-grid.two-columns {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.panel-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  padding: 20px;
  margin-bottom: 20px;
}

.card-head {
  display: flex;
  justify-content: space-between;
  margin-bottom: 16px;
}

.card-head h2 { margin-top: 4px; font-size: 22px; }

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.form-grid.three-columns {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.form-grid.inline-grid {
  grid-template-columns: 240px 240px;
  margin-bottom: 18px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field span {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-soft);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  padding: 11px 12px;
  color: var(--text);
}

.field textarea {
  min-height: 120px;
  resize: vertical;
}

.field-span-3 {
  grid-column: 1 / -1;
}

.quick-actions {
  display: grid;
  gap: 14px;
}

.simple-flow {
  display: grid;
  gap: 18px;
}

.step-block {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(180deg, #ffffff 0%, #fbfdff 100%);
  padding: 18px;
}

.step-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.step-head h3 {
  margin-top: 4px;
  font-size: 20px;
}

.step-number {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  background: var(--primary-strong);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 800;
}

.choice-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.choice-grid.choice-grid-compact {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.choice-button {
  min-height: 64px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  padding: 14px 16px;
  text-align: left;
  font-weight: 700;
  color: var(--primary-strong);
  transition: transform 0.12s ease, border-color 0.12s ease, background 0.12s ease;
}

.choice-button:hover {
  transform: translateY(-1px);
  border-color: #94a3b8;
}

.choice-button.is-selected {
  border-color: #0f766e;
  background: linear-gradient(180deg, #ecfeff 0%, #ccfbf1 100%);
  color: #0f172a;
}

.simple-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 18px 0 0;
}

.summary-chip {
  border-radius: 999px;
  padding: 8px 12px;
  background: var(--accent-soft);
  color: #115e59;
  font-size: 13px;
}

.quick-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
  padding: 16px;
  text-align: left;
}

.quick-card strong {
  display: block;
  margin-bottom: 4px;
  font-size: 16px;
}

.quick-card span {
  color: var(--text-soft);
  font-size: 13px;
}

.status-box,
.empty-box,
.debug-box {
  border-radius: 12px;
  padding: 14px 16px;
  background: var(--surface-muted);
  border: 1px solid var(--line);
}

.status-box.success { color: var(--success); border-color: #bbf7d0; background: #f0fdf4; }
.status-box.error { color: var(--danger); border-color: #fecaca; background: #fef2f2; }
.status-box.warning { color: var(--warning); border-color: #fde68a; background: #fffbeb; }
.status-box.muted { color: var(--text-soft); }

.debug-box {
  overflow: auto;
  min-height: 180px;
  white-space: pre-wrap;
}

.table-wrap {
  overflow: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th,
.data-table td {
  padding: 12px 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.data-table th {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-soft);
}

.chip {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 700;
}

.chip.estado-recibida,
.chip.prioridad-media { background: #e0f2fe; color: #0369a1; }
.chip.estado-analizando { background: #ede9fe; color: #6d28d9; }
.chip.estado-en-desarrollo,
.chip.prioridad-alta { background: #fef3c7; color: #b45309; }
.chip.estado-esperando-cliente { background: #fef9c3; color: #a16207; }
.chip.estado-resuelto,
.chip.estado-cerrado { background: #dcfce7; color: #166534; }
.chip.prioridad-baja { background: #e2e8f0; color: #334155; }
.chip.prioridad-critica { background: #fee2e2; color: #b91c1c; }

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

.mini-btn {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 700;
}

@media (max-width: 1180px) {
  .panel-grid.two-columns,
  .form-grid,
  .form-grid.three-columns,
  .choice-grid,
  .choice-grid.choice-grid-compact {
    grid-template-columns: 1fr;
  }

  .field-span-3 {
    grid-column: auto;
  }
}

@media (max-width: 920px) {
  .panel-shell {
    grid-template-columns: 1fr;
  }

  .panel-sidebar {
    position: static;
    height: auto;
  }

  .page-header {
    flex-direction: column;
  }
}