/**
 * DAVTOOL AGENDA v1 - ESTILOS PRINCIPALES
 * Diseño moderno, limpio y responsive para SaaS
 */

/* ============================================
   VARIABLES CSS (Inyectadas dinámicamente desde config.js)
   ============================================ */
:root {
  /* Colores principales (se sobrescriben con JS) */
  --color-primary: #4F46E5;
  --color-secondary: #10B981;
  --color-danger: #EF4444;
  --color-text: #1F2937;
  --color-background: #F9FAFB;
  
  /* Escala de grises */
  --gray-50: #F9FAFB;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-400: #9CA3AF;
  --gray-500: #6B7280;
  --gray-600: #4B5563;
  --gray-700: #374151;
  --gray-800: #1F2937;
  --gray-900: #111827;
  
  /* Colores semánticos */
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-error: #EF4444;
  --color-info: #3B82F6;
  
  /* Tipografía */
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-size-xs: 0.75rem;    /* 12px */
  --font-size-sm: 0.875rem;   /* 14px */
  --font-size-base: 1rem;     /* 16px */
  --font-size-lg: 1.125rem;   /* 18px */
  --font-size-xl: 1.25rem;    /* 20px */
  --font-size-2xl: 1.5rem;    /* 24px */
  --font-size-3xl: 1.875rem;  /* 30px */
  
  /* Espaciado */
  --spacing-xs: 0.25rem;   /* 4px */
  --spacing-sm: 0.5rem;    /* 8px */
  --spacing-md: 1rem;      /* 16px */
  --spacing-lg: 1.5rem;    /* 24px */
  --spacing-xl: 2rem;      /* 32px */
  --spacing-2xl: 3rem;     /* 48px */
  
  /* Bordes y sombras */
  --border-radius-sm: 0.375rem;  /* 6px */
  --border-radius-md: 0.5rem;    /* 8px */
  --border-radius-lg: 0.75rem;   /* 12px */
  --border-radius-xl: 1rem;      /* 16px */
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Transiciones */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 200ms ease-in-out;
  --transition-slow: 300ms ease-in-out;
  
  /* Contenedores */
  --container-max-width: 1200px;
  --container-padding: var(--spacing-md);
}

/* ============================================
   RESET Y BASE
   ============================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
  min-height: 100vh;
}

/* ============================================
   TIPOGRAFÍA
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--gray-900);
  margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }

p {
  margin-bottom: var(--spacing-md);
}

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

a:hover {
  color: var(--color-primary);
  opacity: 0.8;
}

/* ============================================
   LAYOUT Y CONTENEDORES
   ============================================ */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  width: 100%;
}

.page-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.main-content {
  flex: 1;
  padding: var(--spacing-xl) 0;
}

/* ============================================
   HEADER
   ============================================ */
.header {
  background: white;
  border-bottom: 1px solid var(--gray-200);
  padding: var(--spacing-lg) 0;
  box-shadow: var(--shadow-sm);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
}

.logo-container {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.logo {
  height: 48px;
  width: auto;
}

.business-info h1 {
  font-size: var(--font-size-2xl);
  margin: 0;
  color: var(--gray-900);
}

.business-info p {
  font-size: var(--font-size-sm);
  color: var(--gray-600);
  margin: 0;
}

/* ============================================
   CARDS
   ============================================ */
.card {
  background: white;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
}

.card-header {
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--gray-200);
}

.card-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--gray-900);
  margin: 0;
}

.card-description {
  font-size: var(--font-size-sm);
  color: var(--gray-600);
  margin-top: var(--spacing-xs);
}

.card-body {
  /* Contenido principal del card */
}

/* ============================================
   FORMULARIOS
   ============================================ */
.form-group {
  margin-bottom: var(--spacing-lg);
}

label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--gray-700);
  margin-bottom: var(--spacing-sm);
}

label.required::after {
  content: " *";
  color: var(--color-danger);
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="date"],
input[type="time"],
select,
textarea {
  width: 100%;
  padding: var(--spacing-md);
  font-size: var(--font-size-base);
  font-family: var(--font-family);
  color: var(--gray-900);
  background-color: white;
  border: 1px solid var(--gray-300);
  border-radius: var(--border-radius-md);
  transition: all var(--transition-fast);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

input.error,
select.error,
textarea.error {
  border-color: var(--color-error);
}

textarea {
  resize: vertical;
  min-height: 100px;
}

.form-error {
  display: none;
  color: var(--color-error);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-xs);
}

.form-error.active {
  display: block;
}

/* ============================================
   BOTONES
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-base);
  font-weight: 500;
  font-family: var(--font-family);
  text-align: center;
  border: none;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

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

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

.btn-primary:hover:not(:disabled) {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: var(--gray-200);
  color: var(--gray-800);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--gray-300);
}

.btn-success {
  background-color: var(--color-success);
  color: white;
}

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

.btn-outline {
  background-color: transparent;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
}

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

.btn-block {
  width: 100%;
}

.btn-lg {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: var(--font-size-lg);
}

.btn-sm {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
}

/* ============================================
   BADGES Y ESTADOS
   ============================================ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-xs);
  font-weight: 500;
  border-radius: var(--border-radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-pending {
  background-color: #FEF3C7;
  color: #92400E;
}

.badge-confirmed {
  background-color: #D1FAE5;
  color: #065F46;
}

.badge-cancelled {
  background-color: #FEE2E2;
  color: #991B1B;
}

/* ============================================
   ALERTAS Y MENSAJES
   ============================================ */
.alert {
  padding: var(--spacing-md);
  border-radius: var(--border-radius-md);
  margin-bottom: var(--spacing-lg);
  border-left: 4px solid;
}

.alert-success {
  background-color: #D1FAE5;
  border-color: var(--color-success);
  color: #065F46;
}

.alert-error {
  background-color: #FEE2E2;
  border-color: var(--color-error);
  color: #991B1B;
}

.alert-info {
  background-color: #DBEAFE;
  border-color: var(--color-info);
  color: #1E40AF;
}

.alert-warning {
  background-color: #FEF3C7;
  border-color: var(--color-warning);
  color: #92400E;
}

/* ============================================
   UTILIDADES
   ============================================ */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.hidden { display: none !important; }
.visible { display: block !important; }

/* ============================================
   MODALES
   ============================================ */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
}

.modal.hidden {
  display: none;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  background: white;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-xl);
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  animation: modalSlideIn 0.3s ease-out;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--gray-200);
}

.modal-body {
  padding: var(--spacing-lg);
}

.modal-footer {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--gray-200);
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-sm);
}

.modal-close {
  background: none;
  border: none;
  font-size: var(--font-size-2xl);
  color: var(--gray-500);
  cursor: pointer;
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background-color: var(--gray-100);
  color: var(--gray-900);
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
   TARJETAS DE CITAS (APPOINTMENT CARDS)
   ============================================ */
.appointment-card {
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  transition: all var(--transition-fast);
}

.appointment-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--gray-300);
}

.appointment-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--spacing-md);
  gap: var(--spacing-md);
}

.appointment-card-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--gray-900);
  margin: 0 0 var(--spacing-xs) 0;
}

.appointment-card-meta {
  font-size: var(--font-size-sm);
  color: var(--gray-600);
  margin: 0;
}

.appointment-card-body {
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--gray-200);
}

.appointment-card-info {
  display: grid;
  gap: var(--spacing-xs);
  font-size: var(--font-size-sm);
}

.appointment-card-info-row {
  display: flex;
  gap: var(--spacing-sm);
}

.appointment-card-info-label {
  color: var(--gray-600);
  min-width: 80px;
}

.appointment-card-info-value {
  color: var(--gray-900);
  font-weight: 500;
}

.appointment-card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: var(--spacing-2xl);
  color: var(--gray-500);
}

.empty-state-icon {
  font-size: 4rem;
  margin-bottom: var(--spacing-md);
  opacity: 0.5;
}

/* Code styling (para mostrar credenciales de demo) */
code {
  background-color: var(--gray-100);
  color: var(--color-primary);
  padding: 2px 6px;
  border-radius: var(--border-radius-sm);
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.9em;
}

/* ============================================
   TABS DE NAVEGACIÓN
   ============================================ */
.tab-btn {
  flex: 1;
  padding: var(--spacing-md) var(--spacing-lg);
  background: transparent;
  border: none;
  border-bottom: 3px solid transparent;
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--gray-600);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
}

.tab-btn:hover {
  color: var(--gray-900);
  background-color: var(--gray-50);
}

.tab-btn.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  background-color: var(--gray-50);
}

.tab-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  background-color: var(--color-danger);
  color: white;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 10px;
  min-width: 18px;
  text-align: center;
}

.tab-content {
  animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
   STAT CARDS (Clickeables)
   ============================================ */
.stat-card {
  background: white;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-lg);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-base);
  border: 2px solid transparent;
  position: relative;
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--gray-300);
}

.stat-card.active {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-xl);
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.05) 0%, rgba(79, 70, 229, 0.02) 100%);
}

.stat-card-warning.active {
  border-color: var(--color-warning);
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.05) 0%, rgba(245, 158, 11, 0.02) 100%);
}

.stat-card-success.active {
  border-color: var(--color-success);
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.05) 0%, rgba(16, 185, 129, 0.02) 100%);
}

.stat-card-danger.active {
  border-color: var(--color-danger);
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.05) 0%, rgba(239, 68, 68, 0.02) 100%);
}

.stat-value {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
}

.stat-card .stat-value {
  color: var(--color-primary);
}

.stat-card-warning .stat-value {
  color: var(--color-warning);
}

.stat-card-success .stat-value {
  color: var(--color-success);
}

.stat-card-danger .stat-value {
  color: var(--color-danger);
}

.stat-label {
  color: var(--gray-600);
  font-size: var(--font-size-sm);
}

.stat-badge {
  position: absolute;
  top: -8px;
  right: -8px;
  background-color: var(--color-danger);
  color: white;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 12px;
  min-width: 24px;
  text-align: center;
  box-shadow: var(--shadow-md);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

/* ============================================
   TABLA DE SERVICIOS
   ============================================ */
.services-table {
  width: 100%;
  border-collapse: collapse;
}

.services-table th {
  background-color: var(--gray-100);
  padding: var(--spacing-md);
  text-align: left;
  font-weight: 600;
  font-size: var(--font-size-sm);
  color: var(--gray-700);
  border-bottom: 2px solid var(--gray-200);
}

.services-table td {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--gray-200);
  vertical-align: middle;
}

.services-table tr:hover {
  background-color: var(--gray-50);
}

.service-name {
  font-weight: 500;
  color: var(--gray-900);
}

.service-description {
  font-size: var(--font-size-sm);
  color: var(--gray-600);
  margin-top: var(--spacing-xs);
}

.service-duration {
  font-size: var(--font-size-sm);
  color: var(--color-primary);
  font-weight: 500;
}

.service-actions {
  display: flex;
  gap: var(--spacing-xs);
  justify-content: flex-end;
}

/* ============================================
   FORMULARIO DE HORARIOS
   ============================================ */
.schedule-day-row {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--gray-50);
  border-radius: var(--border-radius-md);
}

.schedule-checkbox {
  margin-right: var(--spacing-sm);
  cursor: pointer;
}

.schedule-time {
  flex: 1;
  min-width: 100px;
}

.schedule-time:disabled {
  background-color: var(--gray-200);
  cursor: not-allowed;
}

/* ============================================
   LISTA DE BLOQUEOS
   ============================================ */
.block-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md);
  background: var(--gray-50);
  border-left: 4px solid var(--color-danger);
  border-radius: var(--border-radius-md);
  margin-bottom: var(--spacing-sm);
}

.block-item:hover {
  background: var(--gray-100);
}

.block-info {
  flex: 1;
}

.block-type {
  font-size: var(--font-size-xs);
  color: var(--gray-600);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 500;
}

.block-details {
  font-weight: 500;
  color: var(--gray-900);
  margin-top: var(--spacing-xs);
}

.block-reason {
  font-size: var(--font-size-sm);
  color: var(--gray-600);
  margin-top: var(--spacing-xs);
}

/* ============================================
   UTILIDADES
   ============================================ */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.hidden { display: none !important; }
.visible { display: block !important; }

/* ============================================
   LOADING SPINNER
   ============================================ */
.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spinner 0.6s linear infinite;
}

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

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

@keyframes slideUp {
  from {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
  to {
    opacity: 0;
    transform: translateX(-50%) translateY(-20px);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(100px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideOutRight {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(100px);
  }
}

/* ============================================
   RESPONSIVE - TABLET
   ============================================ */
@media (max-width: 768px) {
  :root {
    --container-padding: var(--spacing-md);
    --font-size-3xl: 1.5rem;
    --font-size-2xl: 1.25rem;
  }
  
  .header-content {
    flex-direction: column;
    text-align: center;
  }
  
  .card {
    padding: var(--spacing-lg);
  }
  
  .btn-lg {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-base);
  }
}

/* ============================================
   RESPONSIVE - MOBILE
   ============================================ */
@media (max-width: 480px) {
  :root {
    --container-padding: var(--spacing-sm);
  }
  
  .card {
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
  }
  
  .btn {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
  }
  
  .btn-block {
    width: 100%;
  }
}

/* ============================================
   MODO OSCURO (preparado para futuro)
   ============================================ */
@media (prefers-color-scheme: dark) {
  /* Por ahora deshabilitado - implementar en v2 si es necesario */
}