/* ============================================================
   DARWIN SYSTEM — Design System v2.0
   Paleta: Claros, empresarial, moderno, sofisticado
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=DM+Sans:ital,wght@0,300;0,400;0,500;0,600;1,400&display=swap');

:root {
  /* --- Paleta Principal --- */
  --darwin-navy:      #0F1C2E;
  --darwin-slate:     #1E3A5F;
  --darwin-blue:      #1A56DB;
  --darwin-blue-mid:  #2563EB;
  --darwin-blue-lt:   #EFF6FF;
  --darwin-accent:    #C0392B;
  --darwin-accent-lt: #FEF2F2;

  /* --- Neutrales --- */
  --gray-50:   #F8FAFC;
  --gray-100:  #F1F5F9;
  --gray-200:  #E2E8F0;
  --gray-300:  #CBD5E1;
  --gray-400:  #94A3B8;
  --gray-500:  #64748B;
  --gray-600:  #475569;
  --gray-700:  #334155;
  --gray-800:  #1E293B;
  --gray-900:  #0F172A;

  /* --- Semánticos --- */
  --success:    #059669;
  --success-lt: #ECFDF5;
  --warning:    #D97706;
  --warning-lt: #FFFBEB;
  --danger:     #DC2626;
  --danger-lt:  #FEF2F2;
  --info:       #0284C7;
  --info-lt:    #F0F9FF;

  /* --- Superficie --- */
  --surface:        #FFFFFF;
  --surface-raised: #FFFFFF;
  --bg-page:        #F0F4F8;
  --border:         #E2E8F0;
  --border-subtle:  #F1F5F9;

  /* --- Sombras --- */
  --shadow-xs:  0 1px 2px rgba(15,28,46,0.06);
  --shadow-sm:  0 1px 3px rgba(15,28,46,0.08), 0 1px 2px rgba(15,28,46,0.04);
  --shadow-md:  0 4px 6px rgba(15,28,46,0.07), 0 2px 4px rgba(15,28,46,0.04);
  --shadow-lg:  0 10px 24px rgba(15,28,46,0.10), 0 4px 8px rgba(15,28,46,0.05);
  --shadow-xl:  0 20px 40px rgba(15,28,46,0.12);

  /* --- Radio --- */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;

  /* --- Tipografía --- */
  --font-sans: 'Plus Jakarta Sans', 'DM Sans', system-ui, sans-serif;
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 15px; -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--font-sans);
  background-color: var(--bg-page);
  color: var(--gray-800);
  min-height: 100vh;
  line-height: 1.6;
}

/* ================================================================
   HEADER
   ================================================================ */
.dw-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  height: 60px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.dw-header__logo img {
  height: 38px;
  width: auto;
}

.dw-header__actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.dw-header__user {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--gray-500);
  font-weight: 500;
}

.dw-header__user-avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--darwin-blue-lt);
  color: var(--darwin-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.72rem;
}

/* ================================================================
   NAV BAR
   ================================================================ */
.dw-nav {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 2rem;
}

.dw-nav__list {
  display: flex;
  gap: 0;
  list-style: none;
  overflow-x: auto;
}

.dw-nav__item a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.85rem 1rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--gray-500);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
  white-space: nowrap;
}

.dw-nav__item a:hover {
  color: var(--darwin-blue);
  border-bottom-color: var(--darwin-blue);
}

.dw-nav__item.active a {
  color: var(--darwin-blue);
  border-bottom-color: var(--darwin-blue);
}

/* ================================================================
   LAYOUT UTILS
   ================================================================ */
.dw-container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 1.75rem 2rem;
}

.dw-page-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--gray-900);
  letter-spacing: -0.02em;
}

.dw-page-subtitle {
  font-size: 0.82rem;
  color: var(--gray-400);
  margin-top: 0.15rem;
}

.dw-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  gap: 1rem;
}

/* ================================================================
   CARDS
   ================================================================ */
.dw-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.dw-card__header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.dw-card__title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--gray-800);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.dw-card__title i {
  color: var(--darwin-blue);
  font-size: 0.85rem;
}

.dw-card__body {
  padding: 1.5rem;
}

/* ================================================================
   STAT CARDS (KPI)
   ================================================================ */
.dw-kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.75rem;
}

.dw-kpi {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: box-shadow 0.2s, transform 0.2s;
}

.dw-kpi:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.dw-kpi__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.dw-kpi__icon--blue   { background: var(--darwin-blue-lt); color: var(--darwin-blue); }
.dw-kpi__icon--green  { background: var(--success-lt);     color: var(--success); }
.dw-kpi__icon--orange { background: var(--warning-lt);     color: var(--warning); }
.dw-kpi__icon--red    { background: var(--danger-lt);      color: var(--danger); }
.dw-kpi__icon--slate  { background: var(--gray-100);       color: var(--gray-600); }
.dw-kpi__icon--navy   { background: #EEF2FF;               color: var(--darwin-navy); }

.dw-kpi__label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--gray-400);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1;
}

.dw-kpi__value {
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--gray-900);
  line-height: 1;
  margin-top: 0.25rem;
  letter-spacing: -0.03em;
}

.dw-kpi__delta {
  font-size: 0.72rem;
  font-weight: 500;
  margin-top: 0.3rem;
  color: var(--gray-400);
}

/* ================================================================
   BUTTONS
   ================================================================ */
.dw-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.55rem 1.1rem;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
  white-space: nowrap;
  letter-spacing: 0.01em;
}

.dw-btn:disabled { opacity: 0.55; cursor: not-allowed; }

.dw-btn--primary {
  background: var(--darwin-blue);
  color: #fff;
  border-color: var(--darwin-blue);
}
.dw-btn--primary:hover { background: #1649C4; border-color: #1649C4; }

.dw-btn--secondary {
  background: var(--surface);
  color: var(--gray-700);
  border-color: var(--border);
}
.dw-btn--secondary:hover { background: var(--gray-50); border-color: var(--gray-300); }

.dw-btn--danger {
  background: var(--danger-lt);
  color: var(--danger);
  border-color: #FECACA;
}
.dw-btn--danger:hover { background: #FEE2E2; }

.dw-btn--ghost {
  background: transparent;
  color: var(--gray-500);
  border-color: transparent;
}
.dw-btn--ghost:hover { background: var(--gray-100); color: var(--gray-700); }

.dw-btn--sm { padding: 0.35rem 0.75rem; font-size: 0.75rem; }
.dw-btn--lg { padding: 0.75rem 1.5rem; font-size: 0.875rem; }
.dw-btn--full { width: 100%; }

/* ================================================================
   FORMS
   ================================================================ */
.dw-form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.dw-label {
  font-size: 0.77rem;
  font-weight: 600;
  color: var(--gray-600);
  letter-spacing: 0.01em;
}

.dw-input,
.dw-select,
.dw-textarea {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--gray-800);
  background: var(--surface);
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: 0.6rem 0.9rem;
  width: 100%;
  transition: border-color 0.15s, box-shadow 0.15s;
  outline: none;
}

.dw-input:focus,
.dw-select:focus,
.dw-textarea:focus {
  border-color: var(--darwin-blue);
  box-shadow: 0 0 0 3px rgba(26,86,219,0.1);
}

.dw-input::placeholder { color: var(--gray-300); }

.dw-input--readonly {
  background: var(--gray-50);
  color: var(--gray-500);
  cursor: default;
}

/* DNI special input */
.dw-input-dni-wrap {
  position: relative;
}
.dw-input-dni-wrap .dw-input {
  padding-right: 2.5rem;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}
.dw-input-dni-wrap .dw-input-spinner {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
}

/* ================================================================
   TABLES
   ================================================================ */
.dw-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

.dw-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}

.dw-table thead th {
  background: var(--gray-50);
  padding: 0.75rem 1rem;
  text-align: left;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--gray-400);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.dw-table tbody td {
  padding: 0.8rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--gray-700);
  vertical-align: middle;
}

.dw-table tbody tr:last-child td { border-bottom: none; }

.dw-table tbody tr:hover td { background: var(--gray-50); }

/* ================================================================
   BADGES
   ================================================================ */
.dw-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.dw-badge--blue    { background: #DBEAFE; color: #1E40AF; }
.dw-badge--green   { background: #D1FAE5; color: #065F46; }
.dw-badge--orange  { background: #FEF3C7; color: #92400E; }
.dw-badge--red     { background: #FEE2E2; color: #991B1B; }
.dw-badge--gray    { background: var(--gray-100); color: var(--gray-600); }
.dw-badge--indigo  { background: #E0E7FF; color: #3730A3; }

/* ================================================================
   TABS
   ================================================================ */
.dw-tabs {
  display: flex;
  border-bottom: 2px solid var(--border);
  gap: 0;
}

.dw-tab {
  padding: 0.75rem 1.25rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--gray-400);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
  font-family: var(--font-sans);
}

.dw-tab:hover { color: var(--gray-700); }

.dw-tab.active {
  color: var(--darwin-blue);
  border-bottom-color: var(--darwin-blue);
}

/* ================================================================
   SPINNER
   ================================================================ */
.dw-spinner {
  width: 1rem;
  height: 1rem;
  border: 2px solid rgba(26,86,219,0.2);
  border-top-color: var(--darwin-blue);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: inline-block;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ================================================================
   SIDEBAR LAYOUT (for reception etc)
   ================================================================ */
.dw-two-col {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 1.5rem;
  align-items: start;
}

@media (max-width: 900px) {
  .dw-two-col { grid-template-columns: 1fr; }
}

/* ================================================================
   GRID HELPERS
   ================================================================ */
.dw-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.dw-grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1rem; }
.dw-grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 1rem; }

@media (max-width: 768px) {
  .dw-grid-2, .dw-grid-3, .dw-grid-4 { grid-template-columns: 1fr; }
}

/* ================================================================
   CHART CONTAINERS
   ================================================================ */
.dw-chart { width: 100%; }
.dw-chart--sm  { height: 220px; }
.dw-chart--md  { height: 280px; }
.dw-chart--lg  { height: 340px; }

/* ================================================================
   SECTION DIVIDER
   ================================================================ */
.dw-divider {
  height: 1px;
  background: var(--border);
  margin: 1.5rem 0;
}

/* ================================================================
   ALERT / NOTICE
   ================================================================ */
.dw-alert {
  border-radius: var(--radius-md);
  padding: 0.85rem 1.1rem;
  font-size: 0.82rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.dw-alert--info    { background: var(--info-lt);    color: var(--info);    border: 1px solid #BAE6FD; }
.dw-alert--success { background: var(--success-lt); color: var(--success); border: 1px solid #A7F3D0; }
.dw-alert--warning { background: var(--warning-lt); color: var(--warning); border: 1px solid #FDE68A; }
.dw-alert--danger  { background: var(--danger-lt);  color: var(--danger);  border: 1px solid #FECACA; }

/* ================================================================
   LOG OUT BUTTON
   ================================================================ */
.dw-logout-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--gray-400);
  cursor: pointer;
  border: none;
  background: none;
  font-family: var(--font-sans);
  transition: color 0.15s;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
}
.dw-logout-btn:hover { color: var(--danger); background: var(--danger-lt); }

/* ================================================================
   ANIMATIONS
   ================================================================ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.dw-anim { animation: fadeUp 0.35s ease-out forwards; opacity: 0; }
.dw-anim--d1 { animation-delay: 0.05s; }
.dw-anim--d2 { animation-delay: 0.1s; }
.dw-anim--d3 { animation-delay: 0.15s; }
.dw-anim--d4 { animation-delay: 0.2s; }
.dw-anim--d5 { animation-delay: 0.25s; }

/* ================================================================
   EMPTY STATE
   ================================================================ */
.dw-empty {
  text-align: center;
  padding: 3rem 1.5rem;
  color: var(--gray-400);
}
.dw-empty i { font-size: 2rem; margin-bottom: 0.75rem; display: block; }
.dw-empty p { font-size: 0.85rem; }

/* ================================================================
   PERSON CARD (Recepción)
   ================================================================ */
.dw-person-card {
  background: linear-gradient(135deg, var(--darwin-slate), var(--darwin-navy));
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.dw-person-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  border: 2px solid rgba(255,255,255,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 800;
  flex-shrink: 0;
}

.dw-person-name {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.2;
}

.dw-person-dni {
  font-size: 0.8rem;
  opacity: 0.65;
  margin-top: 0.2rem;
  letter-spacing: 0.08em;
}

/* ================================================================
   SIDEBAR STATS (Recepción)
   ================================================================ */
.dw-mini-stat {
  background: var(--gray-50);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.dw-mini-stat__label { font-size: 0.75rem; color: var(--gray-500); font-weight: 500; }
.dw-mini-stat__val   { font-size: 1.1rem; font-weight: 800; color: var(--gray-900); }

/* ================================================================
   RESPONSIVE
   ================================================================ */
@media (max-width: 640px) {
  .dw-container { padding: 1rem; }
  .dw-header    { padding: 0 1rem; }
  .dw-nav       { padding: 0 1rem; }
  .dw-kpi-grid  { grid-template-columns: 1fr 1fr; }
}