/* Sistema de Componentes CSS - Diseño Moderno y Premium */

:root {
  --primary: #667eea;
  --primary-dark: #5568d3;
  --primary-light: #818cf8;
  --secondary: #764ba2;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;
  --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;
  --white: #ffffff;
  --black: #000000;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --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);
  --radius: 0.5rem;
  --radius-sm: 0.25rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gradient-success: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  --gradient-warning: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
  --glass-bg: rgba(255, 255, 255, 0.95);
  --glass-border: rgba(255, 255, 255, 0.2);
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  box-sizing: border-box;
}

/* BUTTONS - Diseño Premium */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.5;
  text-align: center;
  text-decoration: none;
  vertical-align: middle;
  cursor: pointer;
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  transition: var(--transition-normal);
  user-select: none;
  position: relative;
  overflow: hidden;
  letter-spacing: 0.025em;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.btn:hover::before {
  left: 100%;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn:active {
  transform: translateY(0);
  transition-duration: 0.1s;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--white);
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover:not(:disabled) {
  background: var(--gradient-primary);
  box-shadow: 0 8px 24px rgba(102, 126, 234, 0.4);
  transform: translateY(-3px);
}

.btn-secondary {
  background: var(--gray-600);
  color: var(--white);
  border-color: var(--gray-600);
  box-shadow: 0 4px 12px rgba(75, 85, 99, 0.3);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--gray-700);
  border-color: var(--gray-700);
  box-shadow: 0 8px 24px rgba(75, 85, 99, 0.4);
  transform: translateY(-3px);
}

.btn-success {
  background: var(--gradient-success);
  color: var(--white);
  border-color: var(--success);
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.btn-success:hover:not(:disabled) {
  background: var(--gradient-success);
  box-shadow: 0 8px 24px rgba(16, 185, 129, 0.4);
  transform: translateY(-3px);
}

.btn-danger {
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
  color: var(--white);
  border-color: var(--danger);
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

.btn-danger:hover:not(:disabled) {
  background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
  box-shadow: 0 8px 24px rgba(239, 68, 68, 0.4);
  transform: translateY(-3px);
}

.btn-outline {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border-color: var(--gray-300);
  color: var(--gray-700);
  box-shadow: var(--shadow);
}

.btn-outline:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.9);
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: 0 8px 24px rgba(102, 126, 234, 0.2);
  transform: translateY(-3px);
}

.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--gray-600);
  box-shadow: none;
}

.btn-ghost:hover:not(:disabled) {
  background: var(--gray-100);
  color: var(--gray-900);
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.75rem;
  border-radius: var(--radius);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1rem;
  border-radius: var(--radius-xl);
}

/* CARDS - Diseño Premium */
.card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transition: var(--transition-normal);
  position: relative;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.card:hover::before {
  opacity: 1;
}

.card-header {
  padding: 1.5rem 2rem;
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
  border-bottom: 1px solid var(--glass-border);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--gray-800);
  letter-spacing: -0.02em;
}

.card-body {
  padding: 2rem;
  color: var(--gray-700);
  line-height: 1.6;
}

.card-footer {
  padding: 1.5rem 2rem;
  background: linear-gradient(135deg, rgba(248, 250, 252, 0.8) 0%, rgba(241, 245, 249, 0.8) 100%);
  border-top: 1px solid var(--glass-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Card Variants */
.card-interactive {
  cursor: pointer;
  transition: var(--transition-normal);
}

.card-interactive:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: var(--shadow-xl);
}

.card-compact .card-header {
  padding: 1rem 1.5rem;
  font-size: 1rem;
}

.card-compact .card-body {
  padding: 1.5rem;
}

.card-compact .card-footer {
  padding: 1rem 1.5rem;
}

.card-raised {
  box-shadow: var(--shadow-xl);
}

.card-raised:hover {
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

/* FORMS - Diseño Premium */
.form-group {
  margin-bottom: 2rem;
  position: relative;
}

.form-label {
  display: block;
  margin-bottom: 0.75rem;
  font-weight: 600;
  color: var(--gray-700);
  font-size: 0.875rem;
  letter-spacing: 0.025em;
  transition: color var(--transition-fast);
}

.form-control,
.form-select {
  display: block;
  width: 100%;
  padding: 1rem 1.25rem;
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--gray-900);
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 2px solid var(--glass-border);
  border-radius: var(--radius-lg);
  transition: var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.form-control:focus,
.form-select:focus {
  outline: 0;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1), var(--shadow-md);
  background: rgba(255, 255, 255, 0.95);
  transform: translateY(-1px);
}

.form-control::placeholder {
  color: var(--gray-400);
  font-style: italic;
  transition: color var(--transition-fast);
}

.form-control:focus::placeholder {
  color: var(--gray-300);
}

.form-control.is-invalid,
.form-select.is-invalid {
  border-color: var(--danger);
  box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.1);
}

.form-control.is-valid,
.form-select.is-valid {
  border-color: var(--success);
  box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.1);
}

.form-control:hover:not(:focus) {
  border-color: var(--gray-400);
  box-shadow: var(--shadow);
}

.invalid-feedback {
  display: block;
  width: 100%;
  margin-top: 0.5rem;
  font-size: 0.8rem;
  color: var(--danger);
  font-weight: 500;
  padding: 0.5rem;
  background: rgba(239, 68, 68, 0.1);
  border-radius: var(--radius);
  border-left: 3px solid var(--danger);
}

.valid-feedback {
  display: block;
  width: 100%;
  margin-top: 0.5rem;
  font-size: 0.8rem;
  color: var(--success);
  font-weight: 500;
  padding: 0.5rem;
  background: rgba(16, 185, 129, 0.1);
  border-radius: var(--radius);
  border-left: 3px solid var(--success);
}

.form-check {
  display: block;
  min-height: 1.5rem;
  padding-left: 1.5em;
  margin-bottom: 0.125rem;
}

.form-check-input {
  float: left;
  margin-left: -1.5em;
  width: 1em;
  height: 1em;
  margin-top: 0.25em;
  vertical-align: top;
  background-color: var(--white);
  border: 1px solid var(--gray-300);
  appearance: none;
  cursor: pointer;
}

.form-check-input[type="checkbox"] {
  border-radius: 0.25em;
}

.form-check-input[type="radio"] {
  border-radius: 50%;
}

.form-check-input:checked {
  background-color: var(--primary);
  border-color: var(--primary);
}

.form-check-label {
  cursor: pointer;
}

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

/* TABLES */
.table {
  width: 100%;
  margin-bottom: 1rem;
  color: var(--gray-900);
  border-collapse: collapse;
}

.table th,
.table td {
  padding: 0.75rem;
  vertical-align: top;
  border-top: 1px solid var(--gray-200);
}

.table thead th {
  vertical-align: bottom;
  border-bottom: 2px solid var(--gray-200);
  background-color: var(--gray-50);
  font-weight: 600;
  font-size: 0.875rem;
  text-transform: uppercase;
  color: var(--gray-600);
}

.table tbody + tbody {
  border-top: 2px solid var(--gray-200);
}

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

.table-striped tbody tr:nth-of-type(odd) {
  background-color: var(--gray-50);
}

/* MODALS */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1050;
  display: none;
  width: 100%;
  height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
  outline: 0;
}

.modal.show {
  display: block;
}

.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1040;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.5);
}

.modal-dialog {
  position: relative;
  width: auto;
  margin: 1.75rem auto;
  max-width: 500px;
}

.modal-content {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
  background-color: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  outline: 0;
}

.modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--gray-200);
}

.modal-title {
  margin-bottom: 0;
  font-size: 1.25rem;
  font-weight: 600;
}

.modal-body {
  position: relative;
  flex: 1 1 auto;
  padding: 1.5rem;
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--gray-200);
  gap: 0.5rem;
}

.modal-close {
  padding: 0.5rem;
  margin: -0.5rem -0.5rem -0.5rem auto;
  background: transparent;
  border: 0;
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--gray-400);
  cursor: pointer;
}

.modal-close:hover {
  color: var(--gray-600);
}

/* ALERTS - Diseño Premium */
.alert {
  position: relative;
  padding: 1rem 1.5rem;
  margin-bottom: 1.5rem;
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.alert::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: currentColor;
  opacity: 0.8;
}

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

.alert-success {
  color: #065f46;
  background: linear-gradient(135deg, rgba(209, 250, 229, 0.9) 0%, rgba(167, 243, 208, 0.6) 100%);
  border-color: rgba(167, 243, 208, 0.8);
}

.alert-danger {
  color: #991b1b;
  background: linear-gradient(135deg, rgba(254, 226, 226, 0.9) 0%, rgba(254, 202, 202, 0.6) 100%);
  border-color: rgba(254, 202, 202, 0.8);
}

.alert-info {
  color: #1e40af;
  background: linear-gradient(135deg, rgba(219, 234, 254, 0.9) 0%, rgba(191, 219, 254, 0.6) 100%);
  border-color: rgba(191, 219, 254, 0.8);
}

.alert-warning {
  color: #92400e;
  background: linear-gradient(135deg, rgba(254, 243, 199, 0.9) 0%, rgba(253, 230, 138, 0.6) 100%);
  border-color: rgba(253, 230, 138, 0.8);
}

.alert-dismissible {
  padding-right: 3rem;
}

.alert-dismissible .btn-close {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  font-size: 1.25rem;
  cursor: pointer;
  color: currentColor;
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}

.alert-dismissible .btn-close:hover {
  opacity: 1;
}

/* BADGES - Diseño Premium */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.375rem 0.875rem;
  font-size: 0.75rem;
  font-weight: 700;
  line-height: 1;
  text-align: center;
  white-space: nowrap;
  vertical-align: baseline;
  border-radius: var(--radius-lg);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: var(--transition-normal);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.badge:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

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

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

.badge-danger {
  color: var(--white);
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
}

.badge-warning {
  color: var(--gray-900);
  background: var(--gradient-warning);
}

.badge-info {
  color: var(--white);
  background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
}

.badge-secondary {
  color: var(--white);
  background: linear-gradient(135deg, #6b7280 0%, #4b5563 100%);
}

.badge-outline {
  background: transparent;
  border: 2px solid currentColor;
  color: var(--gray-600);
}

.badge-outline.badge-primary {
  color: var(--primary);
}

.badge-outline.badge-success {
  color: var(--success);
}

.badge-outline.badge-danger {
  color: var(--danger);
}

.badge-sm {
  padding: 0.25rem 0.625rem;
  font-size: 0.7rem;
}

.badge-lg {
  padding: 0.5rem 1rem;
  font-size: 0.8rem;
}

/* NUEVOS COMPONENTES */

/* Loading Spinner */
.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--gray-200);
  border-top: 4px solid var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.spinner-sm {
  width: 24px;
  height: 24px;
  border-width: 2px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Progress Bar */
.progress {
  height: 8px;
  background: var(--gray-200);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.1);
}

.progress-bar {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: 4px;
  transition: width var(--transition-slow);
  position: relative;
}

.progress-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  animation: progress-shine 2s infinite;
}

@keyframes progress-shine {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* Avatar */
.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 1rem;
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
  transition: var(--transition-normal);
}

.avatar:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 24px rgba(102, 126, 234, 0.4);
}

.avatar-sm {
  width: 32px;
  height: 32px;
  font-size: 0.875rem;
}

.avatar-lg {
  width: 56px;
  height: 56px;
  font-size: 1.25rem;
}

.avatar-xl {
  width: 80px;
  height: 80px;
  font-size: 1.75rem;
}

/* UTILITIES */
.text-center {
  text-align: center !important;
}

.text-right {
  text-align: right !important;
}

.text-left {
  text-align: left !important;
}

.mt-1 { margin-top: 0.25rem !important; }
.mt-2 { margin-top: 0.5rem !important; }
.mt-3 { margin-top: 1rem !important; }
.mt-4 { margin-top: 1.5rem !important; }
.mt-5 { margin-top: 3rem !important; }

.mb-1 { margin-bottom: 0.25rem !important; }
.mb-2 { margin-bottom: 0.5rem !important; }
.mb-3 { margin-bottom: 1rem !important; }
.mb-4 { margin-bottom: 1.5rem !important; }
.mb-5 { margin-bottom: 3rem !important; }

.pt-1 { padding-top: 0.25rem !important; }
.pt-2 { padding-top: 0.5rem !important; }
.pt-3 { padding-top: 1rem !important; }
.pt-4 { padding-top: 1.5rem !important; }
.pt-5 { padding-top: 3rem !important; }

.pb-1 { padding-bottom: 0.25rem !important; }
.pb-2 { padding-bottom: 0.5rem !important; }
.pb-3 { padding-bottom: 1rem !important; }
.pb-4 { padding-bottom: 1.5rem !important; }
.pb-5 { padding-bottom: 3rem !important; }

.d-flex {
  display: flex !important;
}

.justify-content-between {
  justify-content: space-between !important;
}

.justify-content-center {
  justify-content: center !important;
}

.align-items-center {
  align-items: center !important;
}

.gap-1 { gap: 0.25rem !important; }
.gap-2 { gap: 0.5rem !important; }
.gap-3 { gap: 1rem !important; }

.w-100 {
  width: 100% !important;
}

.h-100 {
  height: 100% !important;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .modal-dialog {
    margin: 0.5rem;
    max-width: calc(100% - 1rem);
  }

  .table {
    font-size: 0.875rem;
  }

  .table th,
  .table td {
    padding: 0.5rem;
  }

  .btn {
    width: 100%;
    margin-bottom: 0.5rem;
  }

  .btn-sm {
    width: auto;
  }
}