/**
 * CONVENIUM - Componentes do Design System
 * Todos os componentes padronizados seguindo as diretrizes premium
 */

/* ============================================
   BOTÕES - Sistema Completo
   ============================================ */

/* Base dos botões */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--btn-padding-y) var(--btn-padding-x);
    min-height: var(--btn-min-height);
    font-family: var(--font-family-primary);
    font-size: var(--font-size-sm);
    font-weight: var(--btn-font-weight);
    line-height: 1;
    text-align: center;
    text-decoration: none;
    white-space: nowrap;
    cursor: pointer;
    user-select: none;
    border: 1px solid transparent;
    border-radius: var(--btn-border-radius);
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.btn:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.3);
}

.btn:disabled,
.btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.btn:active:not(:disabled) {
    transform: scale(0.98);
}

/* Botão Primário */
.btn-primary {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-text-inverse);
    box-shadow: var(--shadow-xs);
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
    box-shadow: var(--shadow-sm);
    transform: translateY(-1px);
}

.btn-primary:focus-visible {
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.4);
}

/* Botão Secundário (Accent) */
.btn-accent,
.btn-convenium {
    background-color: var(--color-secondary);
    border-color: var(--color-secondary);
    color: var(--color-text-inverse);
    box-shadow: var(--shadow-xs);
}

.btn-accent:hover:not(:disabled),
.btn-convenium:hover:not(:disabled) {
    background-color: var(--color-secondary-hover);
    border-color: var(--color-secondary-hover);
    box-shadow: var(--shadow-sm);
    transform: translateY(-1px);
}

/* Botão Outline Primary */
.btn-outline-primary {
    background-color: transparent;
    border-color: var(--color-primary);
    color: var(--color-primary);
}

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

/* Botão Outline Secondary */
.btn-outline-secondary,
.btn-convenium-outline {
    background-color: transparent;
    border-color: var(--color-secondary);
    color: var(--color-secondary);
}

.btn-outline-secondary:hover:not(:disabled),
.btn-convenium-outline:hover:not(:disabled) {
    background-color: var(--color-secondary);
    color: var(--color-text-inverse);
}

/* Botão Ghost (Terciário) */
.btn-ghost {
    background-color: transparent;
    border-color: transparent;
    color: var(--color-primary);
}

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

/* Botão Success */
.btn-success {
    background-color: var(--color-success);
    border-color: var(--color-success);
    color: var(--color-text-inverse);
}

.btn-success:hover:not(:disabled) {
    background-color: var(--color-success-hover);
    border-color: var(--color-success-hover);
}

.btn-outline-success {
    background-color: transparent;
    border-color: var(--color-success);
    color: var(--color-success);
}

.btn-outline-success:hover:not(:disabled) {
    background-color: var(--color-success);
    color: var(--color-text-inverse);
}

/* Botão Danger */
.btn-danger {
    background-color: var(--color-danger);
    border-color: var(--color-danger);
    color: var(--color-text-inverse);
}

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

.btn-outline-danger {
    background-color: transparent;
    border-color: var(--color-danger);
    color: var(--color-danger);
}

.btn-outline-danger:hover:not(:disabled) {
    background-color: var(--color-danger);
    color: var(--color-text-inverse);
}

/* Botão Warning */
.btn-warning {
    background-color: var(--color-warning);
    border-color: var(--color-warning);
    color: var(--color-warning-dark);
}

.btn-warning:hover:not(:disabled) {
    background-color: var(--color-warning-hover);
    border-color: var(--color-warning-hover);
}

/* Botão Info */
.btn-info {
    background-color: var(--color-info);
    border-color: var(--color-info);
    color: var(--color-text-inverse);
}

.btn-info:hover:not(:disabled) {
    background-color: var(--color-info-hover);
    border-color: var(--color-info-hover);
}

/* Botão Light */
.btn-light {
    background-color: var(--color-bg-page);
    border-color: var(--color-border);
    color: var(--color-text-primary);
}

.btn-light:hover:not(:disabled) {
    background-color: var(--color-border);
    border-color: var(--color-border-dark);
}

/* Tamanhos de botões */
.btn-sm {
    padding: var(--btn-padding-y-sm) var(--btn-padding-x-sm);
    font-size: var(--font-size-xs);
    min-height: 32px;
}

.btn-lg {
    padding: var(--btn-padding-y-lg) var(--btn-padding-x-lg);
    font-size: var(--font-size-base);
    min-height: 52px;
}

.btn-block {
    display: flex;
    width: 100%;
}

/* Botão com ícone */
.btn i,
.btn svg {
    font-size: 1.1em;
    flex-shrink: 0;
}

.btn-icon {
    padding: var(--space-2);
    min-width: var(--btn-min-height);
    min-height: var(--btn-min-height);
}

.btn-icon.btn-sm {
    min-width: 32px;
    min-height: 32px;
    padding: var(--space-1);
}

/* Botão Loading */
.btn-loading {
    position: relative;
    color: transparent !important;
    pointer-events: none;
}

.btn-loading::after {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    top: 50%;
    left: 50%;
    margin-top: -9px;
    margin-left: -9px;
    border: 2px solid currentColor;
    border-radius: 50%;
    border-right-color: transparent;
    animation: spin 0.6s linear infinite;
    color: var(--color-text-inverse);
}

.btn-loading.btn-outline-primary::after,
.btn-loading.btn-outline-secondary::after,
.btn-loading.btn-ghost::after,
.btn-loading.btn-light::after {
    color: var(--color-primary);
}

/* ============================================
   FORMULÁRIOS - Inputs, Selects, Textareas
   ============================================ */

/* Labels */
.form-label {
    display: block;
    margin-bottom: var(--space-1);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
}

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

/* Inputs base */
.form-control {
    display: block;
    width: 100%;
    height: var(--input-height);
    padding: var(--input-padding-y) var(--input-padding-x);
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--color-text-primary);
    background-color: var(--color-bg-input);
    border: var(--input-border-width) solid var(--color-border);
    border-radius: var(--input-border-radius);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    appearance: none;
}

.form-control::placeholder {
    color: var(--color-text-muted);
    opacity: 1;
}

.form-control:hover:not(:disabled):not(:focus) {
    border-color: var(--color-border-dark);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-border-focus);
    box-shadow: 0 0 0 var(--input-focus-ring-width) var(--input-focus-ring-color);
}

.form-control:disabled,
.form-control[readonly] {
    background-color: var(--color-bg-disabled);
    cursor: not-allowed;
    opacity: 0.7;
}

/* Input com ícone */
.input-group {
    position: relative;
    display: flex;
    align-items: stretch;
    width: 100%;
}

.input-group .form-control {
    flex: 1 1 auto;
    width: 1%;
}

.input-group-text {
    display: flex;
    align-items: center;
    height: var(--input-height);
    padding: 0 var(--space-3);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    color: var(--color-text-secondary);
    text-align: center;
    white-space: nowrap;
    background-color: var(--color-bg-page);
    border: var(--input-border-width) solid var(--color-border);
    border-radius: var(--input-border-radius);
}

.input-group > :not(:first-child) {
    margin-left: -1px;
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

.input-group > :not(:last-child) {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

/* Input com ícone interno */
.input-icon-wrapper {
    position: relative;
}

.input-icon-wrapper .form-control {
    padding-left: calc(var(--input-padding-x) + 28px);
}

.input-icon-wrapper .input-icon {
    position: absolute;
    left: var(--input-padding-x);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    pointer-events: none;
}

.input-icon-wrapper.icon-right .form-control {
    padding-left: var(--input-padding-x);
    padding-right: calc(var(--input-padding-x) + 28px);
}

.input-icon-wrapper.icon-right .input-icon {
    left: auto;
    right: var(--input-padding-x);
}

/* Textarea */
textarea.form-control {
    height: auto;
    min-height: 120px;
    resize: vertical;
}

/* Select */
.form-select {
    display: block;
    width: 100%;
    height: var(--input-height);
    padding: var(--input-padding-y) calc(var(--input-padding-x) + 20px) var(--input-padding-y) var(--input-padding-x);
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--color-text-primary);
    background-color: var(--color-bg-input);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='none' stroke='%236B7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--input-padding-x) center;
    background-size: 14px;
    border: var(--input-border-width) solid var(--color-border);
    border-radius: var(--input-border-radius);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    appearance: none;
    cursor: pointer;
}

.form-select:focus {
    outline: none;
    border-color: var(--color-border-focus);
    box-shadow: 0 0 0 var(--input-focus-ring-width) var(--input-focus-ring-color);
}

/* Tamanhos de input */
.form-control-sm,
.form-select-sm {
    height: var(--input-height-sm);
    padding: var(--space-1) var(--space-3);
    font-size: var(--font-size-sm);
}

.form-control-lg,
.form-select-lg {
    height: var(--input-height-lg);
    padding: var(--space-3) var(--space-5);
    font-size: var(--font-size-lg);
}

/* Estados de validação */
.form-control.is-invalid,
.form-select.is-invalid {
    border-color: var(--color-danger);
}

.form-control.is-invalid:focus,
.form-select.is-invalid:focus {
    box-shadow: 0 0 0 var(--input-focus-ring-width) rgba(var(--color-danger-rgb), 0.2);
}

.form-control.is-valid,
.form-select.is-valid {
    border-color: var(--color-success);
}

.form-control.is-valid:focus,
.form-select.is-valid:focus {
    box-shadow: 0 0 0 var(--input-focus-ring-width) rgba(var(--color-success-rgb), 0.2);
}

.invalid-feedback {
    display: none;
    width: 100%;
    margin-top: var(--space-1);
    font-size: var(--font-size-sm);
    color: var(--color-danger);
}

.is-invalid ~ .invalid-feedback {
    display: block;
}

.valid-feedback {
    display: none;
    width: 100%;
    margin-top: var(--space-1);
    font-size: var(--font-size-sm);
    color: var(--color-success);
}

.is-valid ~ .valid-feedback {
    display: block;
}

/* Texto auxiliar */
.form-text {
    display: block;
    margin-top: var(--space-1);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* Checkbox e Radio customizados */
.form-check {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    min-height: var(--btn-min-height);
    padding-left: var(--space-2);
}

.form-check .form-check-input,
.form-check-input {
    width: 18px;
    height: 18px;
    margin-top: 2px;
    margin-left: 0;
    flex-shrink: 0;
    background-color: var(--color-bg-input);
    border: 2px solid var(--color-border-dark);
    appearance: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.form-check-input[type="checkbox"] {
    border-radius: var(--radius-sm);
}

.form-check-input[type="radio"] {
    border-radius: var(--radius-full);
}

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

.form-check-input[type="checkbox"]:checked {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='white' d='M13.854 3.646a.5.5 0 0 1 0 .708l-7 7a.5.5 0 0 1-.708 0l-3.5-3.5a.5.5 0 1 1 .708-.708L6.5 10.293l6.646-6.647a.5.5 0 0 1 .708 0z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    background-size: 12px;
}

.form-check-input[type="radio"]:checked {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Ccircle cx='8' cy='8' r='4' fill='white'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
}

.form-check-input:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.2);
}

.form-check-label {
    cursor: pointer;
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
}

/* Switch/Toggle */
.form-switch {
    padding-left: 0;
}

.form-switch .form-check-input {
    width: 44px;
    height: 24px;
    margin-top: 0;
    margin-left: 0;
    background-color: var(--color-border-dark);
    border: none;
    border-radius: var(--radius-full);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3E%3Ccircle r='3' fill='white'/%3E%3C/svg%3E");
    background-position: left 4px center;
    background-size: 16px;
    transition: background-position var(--transition-fast), background-color var(--transition-fast);
}

.form-switch .form-check-input:checked {
    background-color: var(--color-success);
    background-position: right 4px center;
}

/* ============================================
   CARDS
   ============================================ */

.card {
    position: relative;
    display: flex;
    flex-direction: column;
    min-width: 0;
    word-wrap: break-word;
    background-color: var(--color-bg-card);
    background-clip: border-box;
    border: 1px solid var(--color-border-light);
    border-radius: var(--card-border-radius);
    box-shadow: var(--card-shadow);
    transition: box-shadow var(--transition-normal), transform var(--transition-normal);
}

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

.card-header {
    padding: var(--space-4) var(--card-padding);
    margin-bottom: 0;
    background-color: transparent;
    border-bottom: 1px solid var(--color-border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

.card-header:first-child {
    border-radius: calc(var(--card-border-radius) - 1px) calc(var(--card-border-radius) - 1px) 0 0;
}

.card-title {
    margin-bottom: 0;
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
}

.card-body {
    flex: 1 1 auto;
    padding: var(--card-padding);
}

.card-footer {
    padding: var(--space-4) var(--card-padding);
    background-color: var(--color-bg-page);
    border-top: 1px solid var(--color-border-light);
}

.card-footer:last-child {
    border-radius: 0 0 calc(var(--card-border-radius) - 1px) calc(var(--card-border-radius) - 1px);
}

/* Card com status (borda superior colorida) */
.card-status-top {
    border-top: 4px solid var(--color-primary);
    border-top-left-radius: 0;
    border-top-right-radius: 0;
}

.card-status-top.status-success { border-top-color: var(--color-success); }
.card-status-top.status-warning { border-top-color: var(--color-warning); }
.card-status-top.status-danger { border-top-color: var(--color-danger); }
.card-status-top.status-info { border-top-color: var(--color-info); }

/* Card estatístico */
.stat-card {
    position: relative;
    padding: var(--card-padding);
    overflow: hidden;
}

.stat-card .stat-icon {
    position: absolute;
    right: var(--space-4);
    top: var(--space-4);
    width: 48px;
    height: 48px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
    opacity: 0.15;
}

.stat-card .stat-value {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    line-height: 1;
    margin-bottom: var(--space-1);
}

.stat-card .stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2);
}

.stat-card .stat-change {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
}

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

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

/* ============================================
   TABELAS
   ============================================ */

.table-wrapper {
    background-color: var(--color-bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.table {
    width: 100%;
    margin-bottom: 0;
    color: var(--color-text-primary);
    border-collapse: collapse;
}

.table th,
.table td {
    padding: var(--table-cell-padding-y) var(--table-cell-padding-x);
    vertical-align: middle;
    border-bottom: 1px solid var(--table-border-color);
}

.table thead th {
    background-color: var(--table-header-bg);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wider);
    color: var(--color-text-secondary);
    border-bottom-width: 2px;
    white-space: nowrap;
}

.table tbody tr {
    transition: background-color var(--transition-fast);
}

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

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

/* Tabela striped */
.table-striped tbody tr:nth-of-type(odd) {
    background-color: var(--table-stripe-bg);
}

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

/* Ações da tabela */
.table-actions {
    white-space: nowrap;
    text-align: right;
}

.table-actions .btn {
    padding: var(--space-1) var(--space-2);
    min-height: auto;
}

.table-actions .btn + .btn {
    margin-left: var(--space-1);
}

/* Tabela responsiva */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* Estado vazio da tabela */
.table-empty {
    text-align: center;
    padding: var(--space-12) var(--space-4);
    color: var(--color-text-muted);
}

.table-empty i {
    font-size: 3rem;
    margin-bottom: var(--space-4);
    opacity: 0.5;
}

.table-empty p {
    margin-bottom: var(--space-4);
}

/* Paginação */
.table-pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-4);
    border-top: 1px solid var(--color-border-light);
    background-color: var(--color-bg-page);
}

.table-pagination .pagination-info {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.pagination {
    display: flex;
    gap: var(--space-1);
    margin: 0;
    padding: 0;
    list-style: none;
}

.page-link {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 var(--space-3);
    font-size: var(--font-size-sm);
    color: var(--color-text-primary);
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.page-link:hover {
    background-color: var(--color-bg-hover);
    border-color: var(--color-border-dark);
    color: var(--color-primary);
}

.page-item.active .page-link {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-text-inverse);
}

.page-item.disabled .page-link {
    opacity: 0.5;
    pointer-events: none;
}

/* ============================================
   MODAIS
   ============================================ */

.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    z-index: var(--z-overlay);
    width: 100%;
    height: 100%;
    background-color: var(--modal-backdrop-bg);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.modal-backdrop.show {
    opacity: 1;
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    z-index: var(--z-modal);
    display: none;
    width: 100%;
    height: 100%;
    overflow-x: hidden;
    overflow-y: auto;
    outline: 0;
    padding: var(--space-4);
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-dialog {
    position: relative;
    width: 100%;
    max-width: var(--modal-width-md);
    margin: auto;
    pointer-events: none;
    transform: scale(0.95);
    opacity: 0;
    transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.modal.show .modal-dialog {
    transform: scale(1);
    opacity: 1;
}

.modal-sm .modal-dialog { max-width: var(--modal-width-sm); }
.modal-lg .modal-dialog { max-width: var(--modal-width-lg); }
.modal-xl .modal-dialog { max-width: var(--modal-width-xl); }

.modal-content {
    position: relative;
    display: flex;
    flex-direction: column;
    width: 100%;
    max-height: 85vh;
    pointer-events: auto;
    background-color: var(--color-bg-card);
    border: none;
    border-radius: var(--modal-border-radius);
    box-shadow: var(--modal-shadow);
    outline: 0;
}

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

.modal-title {
    margin: 0;
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
}

.modal-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    background: none;
    border: none;
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.modal-body {
    position: relative;
    flex: 1 1 auto;
    padding: var(--modal-padding);
    overflow-y: auto;
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-3);
    padding: var(--modal-padding);
    border-top: 1px solid var(--color-border-light);
}

/* ============================================
   ALERTAS
   ============================================ */

.alert {
    position: relative;
    padding: var(--alert-padding);
    margin-bottom: var(--space-4);
    border-radius: var(--alert-border-radius);
    border-left: var(--alert-border-width) solid transparent;
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
}

.alert-icon {
    flex-shrink: 0;
    font-size: var(--font-size-xl);
}

.alert-content {
    flex: 1;
}

.alert-title {
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-1);
}

.alert-message {
    font-size: var(--font-size-sm);
    margin: 0;
}

.alert-close {
    flex-shrink: 0;
    padding: var(--space-1);
    background: none;
    border: none;
    color: currentColor;
    opacity: 0.6;
    cursor: pointer;
    transition: opacity var(--transition-fast);
}

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

/* Variantes de alerta */
.alert-success {
    background-color: var(--color-success-light);
    border-left-color: var(--color-success);
    color: var(--color-success-dark);
}

.alert-warning {
    background-color: var(--color-warning-light);
    border-left-color: var(--color-warning);
    color: var(--color-warning-dark);
}

.alert-danger,
.alert-error {
    background-color: var(--color-danger-light);
    border-left-color: var(--color-danger);
    color: var(--color-danger-dark);
}

.alert-info {
    background-color: var(--color-info-light);
    border-left-color: var(--color-info);
    color: var(--color-info-dark);
}

/* ============================================
   TOASTS (Notificações Flutuantes)
   ============================================ */

.toast-container {
    position: fixed;
    z-index: var(--z-toast);
    padding: var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    max-width: 360px;
    pointer-events: none;
}

.toast-container.top-right {
    top: 0;
    right: 0;
}

.toast-container.bottom-right {
    bottom: 0;
    right: 0;
}

.toast-container.top-left {
    top: 0;
    left: 0;
}

.toast-container.bottom-left {
    bottom: 0;
    left: 0;
}

.toast {
    pointer-events: auto;
    background-color: var(--color-bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--space-4);
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    animation: slideInRight var(--transition-normal) ease-out;
}

.toast-icon {
    flex-shrink: 0;
    font-size: var(--font-size-xl);
}

.toast-content {
    flex: 1;
    min-width: 0;
}

.toast-title {
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-1);
}

.toast-message {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin: 0;
}

.toast-close {
    flex-shrink: 0;
    padding: var(--space-1);
    background: none;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: color var(--transition-fast);
}

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

.toast-success .toast-icon { color: var(--color-success); }
.toast-warning .toast-icon { color: var(--color-warning); }
.toast-danger .toast-icon { color: var(--color-danger); }
.toast-info .toast-icon { color: var(--color-info); }

/* ============================================
   BADGES / TAGS
   ============================================ */

.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--badge-padding-y) var(--badge-padding-x);
    font-size: var(--badge-font-size);
    font-weight: var(--badge-font-weight);
    line-height: 1;
    text-transform: capitalize;
    border-radius: var(--badge-border-radius);
    white-space: nowrap;
}

/* Status badges padronizados */
.badge-success,
.badge-ativo,
.badge-aprovado,
.badge-pago {
    background-color: var(--color-success-light);
    color: var(--color-success-dark);
}

.badge-warning,
.badge-pendente,
.badge-aguardando {
    background-color: var(--color-warning-light);
    color: var(--color-warning-dark);
}

.badge-danger,
.badge-cancelado,
.badge-recusado,
.badge-bloqueado,
.badge-vencido,
.badge-atrasado {
    background-color: var(--color-danger-light);
    color: var(--color-danger-dark);
}

.badge-secondary,
.badge-inativo,
.badge-expirado {
    background-color: var(--color-bg-disabled);
    color: var(--color-text-secondary);
}

.badge-info,
.badge-andamento,
.badge-processando,
.badge-ativacao {
    background-color: var(--color-info-light);
    color: var(--color-info-dark);
}

.badge-primary,
.badge-novo {
    background-color: var(--color-primary-lighter);
    color: var(--color-primary);
}

/* Badge com dot indicator */
.badge-dot {
    padding-left: calc(var(--badge-padding-x) + 12px);
    position: relative;
}

.badge-dot::before {
    content: '';
    position: absolute;
    left: var(--badge-padding-x);
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: currentColor;
}

/* ============================================
   LOADING STATES
   ============================================ */

/* Spinner */
.spinner {
    display: inline-block;
    width: 24px;
    height: 24px;
    border: 3px solid var(--color-border);
    border-radius: 50%;
    border-top-color: var(--color-primary);
    animation: spin 0.8s linear infinite;
}

.spinner-sm {
    width: 16px;
    height: 16px;
    border-width: 2px;
}

.spinner-lg {
    width: 40px;
    height: 40px;
    border-width: 4px;
}

.spinner-xl {
    width: 64px;
    height: 64px;
    border-width: 5px;
}

/* Spinner com cor */
.spinner-light {
    border-color: rgba(255, 255, 255, 0.3);
    border-top-color: white;
}

.spinner-accent {
    border-top-color: var(--color-secondary);
}

/* Skeleton loading */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--color-bg-skeleton) 25%,
        var(--color-border-light) 50%,
        var(--color-bg-skeleton) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-md);
}

.skeleton-text {
    height: 1em;
    margin-bottom: var(--space-2);
}

.skeleton-text:last-child {
    width: 80%;
}

.skeleton-title {
    height: 1.5em;
    width: 60%;
    margin-bottom: var(--space-3);
}

.skeleton-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
}

.skeleton-button {
    height: var(--btn-min-height);
    width: 120px;
}

.skeleton-card {
    height: 200px;
}

/* Loading overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-bg-overlay);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    z-index: var(--z-overlay);
}

.loading-overlay .spinner {
    width: 48px;
    height: 48px;
    border-width: 4px;
    border-color: rgba(255, 255, 255, 0.3);
    border-top-color: white;
}

.loading-overlay .loading-text {
    color: var(--color-text-inverse);
    font-size: var(--font-size-sm);
}

/* Progress bar */
.progress {
    height: 8px;
    background-color: var(--color-bg-disabled);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
}

.progress-bar-animated {
    background-image: linear-gradient(
        45deg,
        rgba(255, 255, 255, 0.15) 25%,
        transparent 25%,
        transparent 50%,
        rgba(255, 255, 255, 0.15) 50%,
        rgba(255, 255, 255, 0.15) 75%,
        transparent 75%,
        transparent
    );
    background-size: 1rem 1rem;
    animation: progress-bar-stripes 1s linear infinite;
}

@keyframes progress-bar-stripes {
    from { background-position: 1rem 0; }
    to { background-position: 0 0; }
}

/* ============================================
   DROPDOWNS
   ============================================ */

.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-toggle {
    cursor: pointer;
}

.dropdown-toggle::after {
    display: inline-block;
    margin-left: var(--space-2);
    vertical-align: middle;
    content: '';
    border-top: 5px solid;
    border-right: 5px solid transparent;
    border-bottom: 0;
    border-left: 5px solid transparent;
    transition: transform var(--transition-fast);
}

.dropdown.show .dropdown-toggle::after {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    z-index: var(--z-dropdown);
    display: none;
    min-width: 200px;
    padding: var(--space-2) 0;
    margin: var(--space-1) 0 0;
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    animation: fadeInDown var(--transition-fast) ease-out;
}

.dropdown-menu.show {
    display: block;
}

.dropdown-menu-end {
    right: 0;
    left: auto;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    width: 100%;
    padding: var(--space-2) var(--space-4);
    clear: both;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-normal);
    color: var(--color-text-primary);
    text-align: inherit;
    text-decoration: none;
    white-space: nowrap;
    background-color: transparent;
    border: 0;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.dropdown-item:hover,
.dropdown-item:focus {
    background-color: var(--color-bg-hover);
    color: var(--color-primary);
}

.dropdown-item.active {
    background-color: var(--color-primary-lighter);
    color: var(--color-primary);
}

.dropdown-item.disabled {
    color: var(--color-text-muted);
    pointer-events: none;
}

.dropdown-item i {
    width: 20px;
    text-align: center;
    color: var(--color-text-muted);
}

.dropdown-divider {
    height: 0;
    margin: var(--space-2) 0;
    overflow: hidden;
    border-top: 1px solid var(--color-border-light);
}

.dropdown-header {
    display: block;
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wider);
}

/* ============================================
   TOOLTIPS
   ============================================ */

.tooltip {
    position: relative;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    padding: var(--space-1) var(--space-2);
    background-color: var(--color-text-primary);
    color: var(--color-text-inverse);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    white-space: nowrap;
    border-radius: var(--radius-sm);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    z-index: var(--z-tooltip);
}

.tooltip:hover::after {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-4px);
}

/* ============================================
   AVATARS
   ============================================ */

.avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--color-primary);
    color: var(--color-text-inverse);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    overflow: hidden;
    flex-shrink: 0;
}

.avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.avatar-xs { width: 24px; height: 24px; font-size: var(--font-size-xs); }
.avatar-sm { width: 32px; height: 32px; font-size: var(--font-size-xs); }
.avatar-lg { width: 56px; height: 56px; font-size: var(--font-size-lg); }
.avatar-xl { width: 72px; height: 72px; font-size: var(--font-size-xl); }

.avatar-group {
    display: flex;
}

.avatar-group .avatar {
    margin-left: -8px;
    border: 2px solid var(--color-bg-card);
}

.avatar-group .avatar:first-child {
    margin-left: 0;
}

/* ============================================
   BREADCRUMBS
   ============================================ */

.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    padding: 0;
    margin: 0;
    list-style: none;
    font-size: var(--font-size-sm);
}

.breadcrumb-item {
    display: flex;
    align-items: center;
}

.breadcrumb-item + .breadcrumb-item::before {
    content: '/';
    padding: 0 var(--space-2);
    color: var(--color-text-muted);
}

.breadcrumb-item a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.breadcrumb-item a:hover {
    color: var(--color-primary);
}

.breadcrumb-item.active {
    color: var(--color-text-primary);
    font-weight: var(--font-weight-medium);
}

/* ============================================
   TABS
   ============================================ */

.nav-tabs {
    display: flex;
    flex-wrap: wrap;
    border-bottom: 2px solid var(--color-border-light);
    gap: var(--space-1);
}

.nav-tabs .nav-link {
    display: block;
    padding: var(--space-3) var(--space-4);
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all var(--transition-fast);
    border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.nav-tabs .nav-link:hover {
    color: var(--color-primary);
    background-color: var(--color-bg-hover);
}

.nav-tabs .nav-link.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
    background-color: transparent;
}

.tab-content {
    padding: var(--space-4) 0;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
    animation: fadeIn var(--transition-fast) ease-out;
}

/* ============================================
   RESPONSIVIDADE MOBILE
   ============================================ */

@media (max-width: 767px) {
    .btn {
        min-height: 48px;
    }

    .btn-block-mobile {
        display: flex;
        width: 100%;
    }

    .modal-dialog {
        max-width: calc(100% - var(--space-4));
        margin: var(--space-2);
    }

    .modal-content {
        max-height: calc(100vh - var(--space-4));
    }

    .table-responsive-card .table,
    .table-responsive-card thead,
    .table-responsive-card tbody,
    .table-responsive-card th,
    .table-responsive-card td,
    .table-responsive-card tr {
        display: block;
    }

    .table-responsive-card thead tr {
        position: absolute;
        top: -9999px;
        left: -9999px;
    }

    .table-responsive-card tr {
        margin-bottom: var(--space-4);
        background-color: var(--color-bg-card);
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-sm);
        padding: var(--space-4);
    }

    .table-responsive-card td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: var(--space-2) 0;
        border: none;
        border-bottom: 1px solid var(--color-border-light);
    }

    .table-responsive-card td:last-child {
        border-bottom: none;
    }

    .table-responsive-card td::before {
        content: attr(data-label);
        font-weight: var(--font-weight-semibold);
        font-size: var(--font-size-xs);
        text-transform: uppercase;
        color: var(--color-text-muted);
    }

    .toast-container {
        left: var(--space-4);
        right: var(--space-4);
        max-width: none;
    }

    .toast-container.top-right,
    .toast-container.top-left {
        top: var(--space-4);
        left: var(--space-4);
        right: var(--space-4);
    }

    .toast-container.bottom-right,
    .toast-container.bottom-left {
        bottom: calc(var(--mobile-nav-height) + var(--space-4));
        left: var(--space-4);
        right: var(--space-4);
    }
}