/* =====================================================
   styles.css — Panel de Gestión Estética / Barbería
   ===================================================== */

/* ============================
   VARIABLES (colores y medidas)
   ============================ */
:root {
  --bg: #f1f3f9;
  --surface: #ffffff;
  --surface-alt: #f8fafc;
  --border: #e2e8f0;
  --text: #1e293b;
  --text-muted: #64748b;

  --dark: #0f172a;
  --dark-2: #1e293b;
  --dark-3: #334155;

  --primary: #10b981;
  --primary-hover: #059669;
  --primary-soft: #d1fae5;

  --secondary: #e2e8f0;
  --secondary-hover: #cbd5e1;

  --danger: #ef4444;
  --danger-hover: #dc2626;
  --danger-soft: #fee2e2;

  --warning: #f59e0b;
  --warning-soft: #fef3c7;

  --info: #3b82f6;
  --info-soft: #dbeafe;

  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 20px 40px rgba(15, 23, 42, 0.25);
}

/* ============================
   BASE
   ============================ */
* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.45;
}

h1, h2, h3 {
  margin: 0;
  line-height: 1.2;
}

h2 {
  font-size: 1.35rem;
}

h3 {
  font-size: 1rem;
  margin-bottom: 12px;
}

.hidden {
  display: none !important;
}

/* ============================
   PANTALLA DE CARGA
   ============================ */
.loading-screen {
  position: fixed;
  inset: 0;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  z-index: 30000;
  color: var(--text-muted);
}

.spinner {
  width: 42px;
  height: 42px;
  border: 4px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ============================
   LOGIN
   ============================ */
.auth-screen {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-3) 100%);
  z-index: 20000;
}

.auth-card {
  width: 100%;
  max-width: 380px;
  background: var(--surface);
  border-radius: 16px;
  padding: 32px 28px;
  box-shadow: var(--shadow-lg);
}

.auth-logo {
  font-size: 2.4rem;
  text-align: center;
}

.auth-title {
  text-align: center;
  font-size: 1.5rem;
  margin-top: 6px;
}

.auth-subtitle {
  text-align: center;
  color: var(--text-muted);
  margin: 4px 0 20px;
}

.auth-card .btn-block {
  margin-top: 20px;
}

.auth-error {
  color: var(--danger);
  text-align: center;
  margin-top: 12px;
  min-height: 1.2em;
  font-size: 0.9rem;
}

/* ============================
   ENCABEZADO
   ============================ */
.app-header {
  background: var(--dark);
  color: #f8fafc;
  padding: 14px 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

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

.brand h1 {
  font-size: 1.25rem;
}

.brand-icon {
  font-size: 1.5rem;
}

.header-user {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-name {
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

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

.stat {
  background: var(--dark-2);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
}

.stat-label {
  font-size: 0.75rem;
  color: #94a3b8;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.stat-value {
  font-size: 1.35rem;
  font-weight: 700;
}

/* ============================
   NAVEGACIÓN
   ============================ */
.app-nav {
  display: flex;
  gap: 6px;
  padding: 8px 16px;
  background: var(--dark-2);
  overflow-x: auto;
  position: sticky;
  top: 0;
  z-index: 100;
  scrollbar-width: thin;
}

.nav-btn {
  border: none;
  padding: 8px 14px;
  background: transparent;
  color: #cbd5e1;
  cursor: pointer;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  white-space: nowrap;
  flex-shrink: 0;
  transition: background 0.15s, color 0.15s;
}

.nav-btn:hover {
  background: var(--dark-3);
  color: #fff;
}

.nav-btn.active {
  background: var(--primary);
  color: var(--dark);
}

/* ============================
   CONTENIDO
   ============================ */
.app-main {
  padding: 20px 24px;
  max-width: 1500px;
  margin: 0 auto;
}

.tab-section {
  display: none;
}

.tab-section.active {
  display: block;
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: none; }
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

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

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
  margin-bottom: 16px;
  min-width: 0;
}

.card-narrow {
  max-width: 460px;
}

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.card-head h3 {
  margin: 0;
}

.grid {
  display: grid;
  gap: 16px;
}

.grid .card {
  margin-bottom: 0;
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 16px;
}

.grid-dashboard {
  grid-template-columns: 2fr 1fr 1fr;
}

.two-columns {
  display: grid;
  grid-template-columns: minmax(280px, 380px) minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

/* ============================
   FORMULARIOS
   ============================ */
label {
  display: block;
  margin-top: 12px;
  margin-bottom: 4px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
}

input[type="text"],
input[type="tel"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
input[type="time"],
select,
textarea {
  width: 100%;
  padding: 9px 11px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color 0.15s, box-shadow 0.15s;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-soft);
}

textarea {
  min-height: 70px;
  resize: vertical;
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
  cursor: pointer;
  margin-top: 14px;
}

.checkbox-row input {
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
}

.field-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin: 4px 0 0;
}

.form-actions {
  margin-top: 16px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.search-input {
  margin-bottom: 12px;
}

.filters-row {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.filter-field label {
  margin-top: 0;
}

.filter-field input {
  min-width: 170px;
}

.status-filter {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0;
  font-size: 0.85rem;
  cursor: pointer;
  white-space: nowrap;
}

.status-filter input {
  accent-color: currentColor;
}

.status-programada { color: #b45309; }
.status-completada { color: #047857; }
.status-cancelada  { color: #b91c1c; }

/* ============================
   BOTONES
   ============================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: none;
  border-radius: var(--radius-sm);
  padding: 9px 16px;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s, opacity 0.15s;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
  background: var(--primary-hover);
}

.btn-secondary {
  background: var(--secondary);
  color: var(--text);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--secondary-hover);
}

.btn-danger {
  background: var(--danger);
  color: #fff;
}

.btn-danger:hover:not(:disabled) {
  background: var(--danger-hover);
}

.btn-success {
  background: var(--primary-soft);
  color: #047857;
}

.btn-success:hover:not(:disabled) {
  background: #a7f3d0;
}

.btn-light {
  background: var(--surface-alt);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-light:hover:not(:disabled) {
  background: var(--secondary);
}

.btn-ghost {
  background: transparent;
  color: #e2e8f0;
  border: 1px solid var(--dark-3);
}

.btn-ghost:hover:not(:disabled) {
  background: var(--dark-3);
}

.btn-sm {
  padding: 5px 10px;
  font-size: 0.8rem;
}

.btn-block {
  width: 100%;
}

/* ============================
   TABLAS
   ============================ */
.table-wrap {
  width: 100%;
  overflow: auto;
  max-height: 460px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

th, td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
  white-space: nowrap;
}

th {
  background: var(--surface-alt);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  position: sticky;
  top: 0;
  z-index: 1;
}

tbody tr:hover {
  background: var(--surface-alt);
}

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

td.empty {
  text-align: center;
  color: var(--text-muted);
  padding: 24px 12px;
  white-space: normal;
}

.buttons-cell {
  display: flex;
  gap: 6px;
  align-items: center;
}

.notes-cell {
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-muted);
}

.row-completed td { background: #f0fdf4; }
.row-cancelled td { color: #94a3b8; }
.row-late td      { background: #fff1f2; }
.row-muted td     { color: #94a3b8; }

/* ============================
   ETIQUETAS (BADGES)
   ============================ */
.badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  vertical-align: middle;
}

.badge-programada { background: var(--warning-soft); color: #92400e; }
.badge-completada { background: var(--primary-soft); color: #065f46; }
.badge-cancelada  { background: var(--danger-soft);  color: #991b1b; }
.badge-vip        { background: #ede9fe; color: #5b21b6; margin-left: 6px; }
.badge-cita       { background: var(--info-soft); color: #1e40af; }
.badge-walkin     { background: var(--secondary); color: var(--dark-3); }

/* ============================
   LISTAS Y ALERTAS
   ============================ */
.list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 320px;
  overflow-y: auto;
}

.list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px solid var(--border);
}

.list li:last-child {
  border-bottom: none;
}

.list .list-empty {
  color: var(--text-muted);
  justify-content: center;
}

.list-empty {
  color: var(--text-muted);
}

.list-count {
  font-weight: 700;
  color: var(--text-muted);
  white-space: nowrap;
}

.list-muted {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.list .alert-item {
  border-bottom: none;
  border-radius: var(--radius-sm);
  padding: 9px 12px;
  margin-bottom: 6px;
  font-size: 0.88rem;
}

.alert-info    { background: var(--info-soft); }
.alert-warning { background: var(--warning-soft); }
.alert-danger  { background: var(--danger-soft); }
.alert-muted   { background: var(--surface-alt); color: var(--text-muted); }

/* ============================
   INGRESOS / REPORTES
   ============================ */
.income-total {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary-hover);
  margin-bottom: 8px;
}

.income-row {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  border-bottom: 1px dashed var(--border);
  font-size: 0.9rem;
}

.income-row:last-child {
  border-bottom: none;
}

.income-row-total {
  font-weight: 800;
  font-size: 1rem;
}

.report-result {
  margin-top: 16px;
}

/* ============================
   HUECOS DISPONIBLES
   ============================ */
.slots {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 10px;
}

.slots-title {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
}

.slot {
  display: block;
  width: 100%;
  text-align: left;
  border: none;
  border-radius: var(--radius-sm);
  padding: 7px 10px;
  font-size: 0.85rem;
  font-family: inherit;
}

button.slot {
  cursor: pointer;
}

.slot-ok    { background: var(--primary-soft); color: #065f46; }
.slot-tight { background: var(--warning-soft); color: #92400e; }
.slot-none  { background: var(--surface-alt); color: var(--text-muted); }

button.slot:hover {
  filter: brightness(0.95);
}

/* ============================
   MODALES
   ============================ */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 1000;
}

.modal-content {
  background: var(--surface);
  border-radius: 14px;
  padding: 22px;
  width: 100%;
  max-width: 440px;
  max-height: calc(100vh - 32px);
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 6px;
}

.modal-head h3 {
  margin: 0;
}

.modal-close {
  border: none;
  background: transparent;
  font-size: 1.8rem;
  line-height: 1;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0 4px;
}

.modal-close:hover {
  color: var(--text);
}

/* Visor de fotos de servicios */
.modal-dark {
  background: rgba(0, 0, 0, 0.88);
}

.viewer {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 100%;
  max-height: 100%;
}

.viewer-img {
  max-width: 90vw;
  max-height: 80vh;
  border-radius: 10px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.viewer-name {
  color: #fff;
  margin-top: 14px;
  font-size: 1.1rem;
}

.viewer-close {
  position: absolute;
  top: 14px;
  right: 22px;
  border: none;
  background: transparent;
  color: #fff;
  font-size: 2.6rem;
  cursor: pointer;
}

/* Fotos antes / después */
.modal-photo {
  max-width: 640px;
}

.photo-preview {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  height: min(55vh, 460px);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin: 12px 0;
}

.photo-preview-img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.photo-preview-empty {
  color: var(--text-muted);
}

.photo-input {
  width: 100%;
  padding: 10px;
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-alt);
  font-size: 0.9rem;
}

/* ============================
   FOTOS DE SERVICIOS
   ============================ */
.photos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
}

.photo-card {
  margin: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
}

.photo-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.12);
}

.photo-thumb {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  display: block;
}

.photo-card figcaption {
  padding: 10px 12px;
  font-weight: 600;
  font-size: 0.9rem;
}

/* ============================
   CALENDARIO
   ============================ */
.calendar-modal {
  position: fixed;
  inset: 0;
  z-index: 900;
  pointer-events: none; /* permite usar la app detrás */
}

.calendar-modal-content {
  position: absolute;
  top: 110px;
  left: 120px;
  width: min(620px, 95vw);
  max-height: 85vh;
  overflow: auto;
  background: var(--dark);
  color: #f1f5f9;
  padding: 18px 20px;
  border-radius: 14px;
  box-shadow: var(--shadow-lg);
  pointer-events: auto;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
  cursor: move;
  touch-action: none;
  user-select: none;
}

.modal-header h2 {
  font-size: 1.15rem;
}

.calendar-nav {
  display: flex;
  align-items: center;
  gap: 10px;
}

.calendar-nav h2 {
  min-width: 170px;
  text-align: center;
}

.calendar-weekdays,
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
}

.calendar-weekdays {
  margin-bottom: 6px;
}

.calendar-weekdays span {
  text-align: center;
  font-size: 0.75rem;
  color: #94a3b8;
  text-transform: uppercase;
}

.calendar-day {
  min-height: 58px;
  padding: 6px;
  background: var(--dark-2);
  color: #e2e8f0;
  border: 1px solid var(--dark-3);
  border-radius: 8px;
  text-align: center;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  font-family: inherit;
  transition: background 0.15s;
}

.calendar-day:hover {
  background: var(--dark-3);
}

.calendar-day small {
  font-size: 0.7rem;
}

.calendar-day-empty {
  background: transparent;
  border: none;
  cursor: default;
}

.calendar-day-empty:hover {
  background: transparent;
}

.calendar-day-has-appointments {
  background: #1d4ed8;
  border-color: #3b82f6;
  color: #fff;
}

.calendar-day-has-appointments:hover {
  background: #2563eb;
}

.calendar-day-today {
  outline: 2px solid var(--primary);
  outline-offset: -2px;
}

.day-appointment {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 8px 10px;
  background: var(--dark-2);
  border-radius: 8px;
  margin-bottom: 6px;
  font-size: 0.9rem;
}

#day-details-modal h3 {
  margin-top: 16px;
}

/* ============================
   AVISOS (TOASTS)
   ============================ */
.toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 40000;
  max-width: calc(100vw - 40px);
}

.toast {
  background: var(--dark);
  color: #fff;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  font-size: 0.9rem;
  border-left: 4px solid var(--primary);
  animation: toastIn 0.2s ease;
  transition: opacity 0.3s, transform 0.3s;
}

.toast-error { border-left-color: var(--danger); }
.toast-info  { border-left-color: var(--info); }

.toast-hide {
  opacity: 0;
  transform: translateY(8px);
}

@keyframes toastIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

/* ============================
   PIE DE PÁGINA
   ============================ */
.app-footer {
  padding: 14px 16px;
  color: var(--text-muted);
  font-size: 0.8rem;
  text-align: center;
}

/* ============================
   RESPONSIVO
   ============================ */
@media (max-width: 1100px) {
  .grid-dashboard {
    grid-template-columns: 1fr 1fr;
  }

  .grid-dashboard .card:first-child {
    grid-column: 1 / -1;
  }

  .two-columns {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  body {
    font-size: 14px;
  }

  .app-header {
    padding: 12px 14px;
  }

  .brand h1 {
    font-size: 1.05rem;
  }

  .header-stats {
    gap: 8px;
  }

  .stat {
    padding: 8px 10px;
  }

  .stat-value {
    font-size: 1.05rem;
  }

  .stat-label {
    font-size: 0.65rem;
  }

  .app-main {
    padding: 14px 12px;
  }

  .grid-3,
  .grid-dashboard {
    grid-template-columns: 1fr;
  }

  .section-actions {
    width: 100%;
  }

  .section-actions .btn {
    flex: 1;
  }

  .card {
    padding: 14px;
  }

  .calendar-modal-content {
    left: 8px !important;
    top: 8px !important;
    width: calc(100vw - 16px);
    max-height: calc(100vh - 16px);
  }

  .modal-header {
    cursor: default;
  }

  .calendar-day {
    min-height: 48px;
  }

  .calendar-nav h2 {
    min-width: 0;
    font-size: 1rem;
  }

  .toast-container {
    left: 12px;
    right: 12px;
    bottom: 12px;
  }
}