/**
 * ============================================================================
 * FILESHARE - Estilos CSS
 * ============================================================================
 * 
 * Design responsivo com cores configuráveis (azul e branco por defeito).
 * Utiliza CSS Custom Properties para fácil personalização.
 */

/* ============================================================================
   CSS CUSTOM PROPERTIES (Variáveis)
   ============================================================================ */
:root {
    /* Cores principais (podem ser sobrepostas por JS) */
    --color-primary: #1565C0;
    --color-primary-dark: #0D47A1;
    --color-primary-light: #1976D2;
    --color-secondary: #1976D2;
    --color-background: #FFFFFF;
    --color-text: #212121;
    --color-text-light: #757575;
    --color-border: #E0E0E0;
    --color-surface: #FAFAFA;
    --color-error: #D32F2F;
    --color-success: #388E3C;
    --color-warning: #F57C00;
    
    /* Espaçamentos */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    /* Bordas */
    --border-radius: 6px;
    --border-radius-lg: 12px;
    
    /* Sombras */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.12);
    --shadow-md: 0 2px 6px rgba(0,0,0,0.15);
    --shadow-lg: 0 4px 12px rgba(0,0,0,0.15);
    
    /* Dimensões */
    --header-height: 60px;
    --footer-height: 50px;
    --sidebar-width: 280px;
    
    /* Transições */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
}

/* ============================================================================
   RESET E 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: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    color: var(--color-text);
    background-color: var(--color-surface);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

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

/* ============================================================================
   TIPOGRAFIA
   ============================================================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-text);
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }

.text-muted { color: var(--color-text-light); }
.text-error { color: var(--color-error); }
.text-success { color: var(--color-success); }
.text-center { text-align: center; }
.text-right { text-align: right; }

/* ============================================================================
   LAYOUT - HEADER
   ============================================================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--color-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

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

.header-logo {
    height: 40px;
    width: auto;
}

.header-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: white;
}

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

.header-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255,255,255,0.1);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.header-user:hover {
    background: rgba(255,255,255,0.2);
}

.header-user-name {
    font-size: 0.875rem;
    color: white;
}

.header-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255,255,255,0.1);
    border: none;
    border-radius: var(--border-radius);
    color: white;
    cursor: pointer;
    transition: background var(--transition-fast);
    font-size: 0.875rem;
}

.header-btn:hover {
    background: rgba(255,255,255,0.2);
}

/* ============================================================================
   LAYOUT - MAIN CONTENT
   ============================================================================ */
.main-wrapper {
    margin-top: var(--header-height);
    min-height: calc(100vh - var(--header-height) - var(--footer-height));
    display: flex;
}

.main-content {
    flex: 1;
    padding: var(--spacing-lg);
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

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

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

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

/* ============================================================================
   LAYOUT - FOOTER
   ============================================================================ */
.footer {
    height: var(--footer-height);
    background: var(--color-background);
    border-top: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
    color: var(--color-text-light);
    font-size: 0.875rem;
}

.footer-entity {
    text-align: left;
}

.footer-copyright {
    text-align: right;
}

/* ============================================================================
   FOOTER - PÁGINA DE LOGIN (2 linhas, centrado)
   ============================================================================ */
/*
.login-footer {
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid var(--color-border);
    text-align: center;
    font-size: 0.8125rem;
    color: var(--color-text-light);
}
*/
.login-footer {
    margin-top: 16px;
    padding-top: 8px;
    border-top: 1px solid var(--color-border);
    text-align: center;
    font-size: 0.8125rem;
    color: var(--color-text-light);
}

.login-footer-entity {
    margin-bottom: 4px;
}

.login-footer-copyright {
    opacity: 0.8;
}

/* ============================================================================
   BOTÕES
   ============================================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

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

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

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

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

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

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

.btn-danger:hover:not(:disabled) {
    background: #C62828;
}

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

.btn-icon {
    padding: var(--spacing-sm);
    min-width: 36px;
    height: 36px;
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.8125rem;
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 1rem;
}

/* ============================================================================
   CARDS
   ============================================================================ */
.card {
    background: var(--color-background);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

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

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

.card-footer {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    background: var(--color-surface);
}

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

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--color-text);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    font-size: 0.9375rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    background: var(--color-background);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(21, 101, 192, 0.15);
}

.form-input.error {
    border-color: var(--color-error);
}

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

.form-hint {
    font-size: 0.75rem;
    color: var(--color-text-light);
    margin-top: var(--spacing-xs);
}

.form-error {
    font-size: 0.75rem;
    color: var(--color-error);
    margin-top: var(--spacing-xs);
}

.form-checkbox {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.form-checkbox input {
    width: 18px;
    height: 18px;
    cursor: pointer;
}
/*
.form-row {
    display: flex;
    gap: var(--spacing-md);
}

.form-row > * {
    flex: 1;
}
*/

.form-row {
	display: flex;
	gap: 16px;
	flex-wrap: wrap;
}
.form-row .form-group {
	flex: 1;
	min-width: 200px;
}

/* ============================================================================
   TABELAS
   ============================================================================ */
.table-container {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.table th,
.table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.table th {
    font-weight: 600;
    color: var(--color-text-light);
    background: var(--color-surface);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
}

.table tr:hover td {
    background: var(--color-surface);
}

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

/* ============================================================================
   LISTAS - PASTAS E FICHEIROS
   ============================================================================ */
.folder-grid,
.file-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.folder-item,
.file-item {
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.folder-item:hover,
.file-item:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.folder-icon,
.file-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.file-icon {
    color: var(--color-text-light);
}

.folder-name,
.file-name {
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    word-break: break-word;
}

.file-meta {
    font-size: 0.75rem;
    color: var(--color-text-light);
}

/* Lista compacta */
.file-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.file-list-item {
    display: flex;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    gap: var(--spacing-md);
    transition: all var(--transition-fast);
}

.file-list-item:hover {
    background: var(--color-surface);
    border-color: var(--color-primary-light);
}

.file-list-icon {
    font-size: 1.5rem;
    color: var(--color-text-light);
    width: 40px;
    text-align: center;
}

.file-list-info {
    flex: 1;
    min-width: 0;
}

.file-list-name {
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-list-meta {
    font-size: 0.75rem;
    color: var(--color-text-light);
}

.file-list-actions {
    display: flex;
    gap: var(--spacing-xs);
}

/* ============================================================================
   MODAIS
   ============================================================================ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--color-background);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow: auto;
    transform: scale(0.9);
    transition: transform var(--transition-normal);
}

.modal-overlay.active .modal {
    transform: scale(1);
}

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

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

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-text-light);
    padding: 0;
    line-height: 1;
}

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

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

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

/* ============================================================================
   ALERTAS E NOTIFICAÇÕES
   ============================================================================ */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.alert-info {
    background: #E3F2FD;
    color: #1565C0;
}

.alert-success {
    background: #E8F5E9;
    color: #2E7D32;
}

.alert-warning {
    background: #FFF3E0;
    color: #E65100;
}

.alert-error {
    background: #FFEBEE;
    color: #C62828;
}

/* Toast notifications */
.toast-container {
    position: fixed;
    top: calc(var(--header-height) + var(--spacing-md));
    right: var(--spacing-md);
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-text);
    color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s ease;
    max-width: 350px;
}

.toast.success { background: var(--color-success); }
.toast.error { background: var(--color-error); }
.toast.warning { background: var(--color-warning); }

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

/* ============================================================================
   PROGRESS BAR
   ============================================================================ */
.progress {
    height: 8px;
    background: var(--color-border);
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: var(--color-primary);
    border-radius: 4px;
    transition: width var(--transition-normal);
}

.progress-lg {
    height: 16px;
}

.progress-lg .progress-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.75rem;
    font-weight: 500;
}

/* Animação da barra durante finalização */
.progress-bar-finalizing {
    background: repeating-linear-gradient(
        -45deg,
        var(--color-primary),
        var(--color-primary) 10px,
        var(--color-secondary) 10px,
        var(--color-secondary) 20px
    );
    background-size: 28px 28px;
    animation: progress-stripes 0.6s linear infinite;
}

@keyframes progress-stripes {
    0% { background-position: 0 0; }
    100% { background-position: 28px 0; }
}

/* ============================================================================
   LOADING SPINNER
   ============================================================================ */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.spinner-sm {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

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

.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(255,255,255,0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

/* ============================================================================
   MENU DROPDOWN
   ============================================================================ */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 200px;
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
}

.dropdown.active .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text);
    transition: background var(--transition-fast);
    cursor: pointer;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    font-size: 0.875rem;
}

.dropdown-item:hover {
    background: var(--color-surface);
}

.dropdown-item.danger {
    color: var(--color-error);
}

.dropdown-divider {
    height: 1px;
    background: var(--color-border);
    margin: var(--spacing-xs) 0;
}

/* ============================================================================
   BREADCRUMBS
   ============================================================================ */
.breadcrumbs {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-md);
}

.breadcrumb-item {
    color: var(--color-text-light);
}

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

.breadcrumb-separator {
    color: var(--color-border);
}

/* ============================================================================
   EMPTY STATE
   ============================================================================ */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-lg);
    color: var(--color-text-light);
}

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

.empty-state-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.empty-state-text {
    margin-bottom: var(--spacing-lg);
}

/* ============================================================================
   BADGES / TAGS
   ============================================================================ */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 100px;
    background: var(--color-surface);
    color: var(--color-text-light);
}

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

.badge-success {
    background: #E8F5E9;
    color: #2E7D32;
}

.badge-warning {
    background: #FFF3E0;
    color: #E65100;
}

.badge-error {
    background: #FFEBEE;
    color: #C62828;
}

/* ============================================================================
   UTILITÁRIOS
   ============================================================================ */
.hidden { display: none !important; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }

/* ============================================================================
   RESPONSIVO
   ============================================================================ */
@media (max-width: 768px) {
    :root {
        --header-height: 56px;
        --spacing-lg: 16px;
    }
    
    .header {
        padding: 0 var(--spacing-md);
    }
    
    .header-title {
        font-size: 1rem;
    }
    
    .header-user-name {
        display: none;
    }
    
    .main-content {
        padding: var(--spacing-md);
    }
    
    .content-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .content-actions {
        width: 100%;
        justify-content: flex-start;
    }
    
    .folder-grid,
    .file-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
    
    .form-row {
        flex-direction: column;
    }
    
    .modal {
        width: 95%;
        margin: var(--spacing-md);
    }
    
    .table th,
    .table td {
        padding: var(--spacing-sm);
    }
    
    .btn {
        padding: var(--spacing-sm);
    }
    
    .btn span:not(.btn-icon) {
        display: none;
    }
}

@media (max-width: 480px) {
    .folder-grid,
    .file-grid {
        grid-template-columns: 1fr;
    }
    
    .file-list-actions {
        flex-direction: column;
    }
    .footer {
        flex-direction: column;
        height: auto;
        padding: var(--spacing-sm) var(--spacing-lg);
        gap: 4px;
        text-align: center;
    }
    .footer-entity,
    .footer-copyright {
        text-align: center;
    }    
}

/* ============================================================================
   PÁGINA DE LOGIN
   ============================================================================ */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    padding: var(--spacing-md);
}

.login-box {
    background: var(--color-background);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 400px;
}

/*
.login-logo {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}
*/
.login-logo {
  display: flex;
  flex-direction: column;   /* imagem em cima, título em baixo */
  align-items: center;      /* centra horizontalmente */
  justify-content: center;  /* centra verticalmente (se a div tiver altura) */
  text-align: center;
  gap: 10px;                /* espaço entre imagem e título */
  margin-bottom: 50px; 		/* aumenta o espaço até à label */
}

.login-logo img {
    max-height: 60px;
}

.login-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--color-primary);
}

.login-form .form-group:last-of-type {
    margin-bottom: var(--spacing-lg);
}

.login-form .btn {
    width: 100%;
}

/* ============================================================================
   UPLOAD ZONE
   ============================================================================ */
.upload-zone {
    border: 2px dashed var(--color-border);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--color-primary);
    background: rgba(21, 101, 192, 0.05);
}

.upload-zone-icon {
    font-size: 3rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.upload-zone-text {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
}

.upload-zone-hint {
    font-size: 0.75rem;
    color: var(--color-text-light);
}

/* Upload progress */
.upload-progress {
    margin-top: var(--spacing-md);
}

.upload-file-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm);
    background: var(--color-surface);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-sm);
}

.upload-file-info {
    flex: 1;
    min-width: 0;
}

.upload-file-name {
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.upload-file-status {
    font-size: 0.75rem;
    color: var(--color-text-light);
}

.upload-progress-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: 4px;
}

.upload-progress-row .progress {
    flex: 1;
}

.upload-cancel-btn {
    flex-shrink: 0;
    padding: 2px 8px;
    font-size: 0.75rem;
    line-height: 1;
}

/* ============================================================================
   MENU LATERAL (SIDEBAR)
   ============================================================================ */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.3);
    z-index: 998;
}
.sidebar-overlay.active {
    display: block;
}
.sidebar {
    position: fixed;
    top: 60px;
    right: -220px;
    width: 220px;
    background: var(--color-background, #fff);
    box-shadow: -2px 2px 8px rgba(0,0,0,0.15);
    border-radius: 0 0 0 8px;
    z-index: 999;
    transition: right 0.3s ease;
    overflow: hidden;
}
.sidebar.active {
    right: 0;
}
.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    border-bottom: 1px solid var(--color-border, #e0e0e0);
    background: var(--color-primary, #1565C0);
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
}
.sidebar-close {
    background: none;
    border: none;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}
.sidebar-nav {
    padding: 4px 0;
}
.sidebar-item {
    display: block;
    width: 100%;
    padding: 10px 16px;
    text-align: left;
    background: none;
    border: none;
    font-size: 0.9rem;
    cursor: pointer;
    color: var(--color-text, #212121);
    text-decoration: none;
}
.sidebar-item:hover {
    background: var(--color-surface, #f5f5f5);
}
.sidebar-item.danger {
    color: var(--color-error, #D32F2F);
}
.sidebar-divider {
    height: 1px;
    background: var(--color-border, #e0e0e0);
    margin: 4px 0;
}
#menu-toggle {
    font-size: 1.25rem;
}

/* ============================================================================
   LISTA DE FICHEIROS - RESPONSIVO
   ============================================================================ */
@media (max-width: 600px) {
    .file-list-item {
        flex-wrap: wrap;
    }
    
    .file-list-info {
        flex: 1;
        min-width: 0;
    }
    
    .file-list-actions {
        width: 100%;
        margin-top: 8px;
        padding-top: 8px;
        border-top: 1px solid var(--color-border, #e0e0e0);
        display: flex;
        flex-direction: row;
        flex-wrap: nowrap;
        gap: 6px;
        justify-content: flex-start;
        overflow-x: auto;
    }
    
    .file-list-actions .btn {
        flex-shrink: 0;
    }
}



/* ============================================================================
   LISTA DE FICHEIROS - Tabs de Partilha
   ============================================================================ */
/* Tabs de Partilha */
.share-tabs {
    display: flex;
    gap: 4px;
    border-bottom: 2px solid #ddd;
    margin-bottom: 16px;
}
.share-tab {
    padding: 10px 20px;
    border: none;
    background: #f5f5f5;
    cursor: pointer;
    font-size: 14px;
    color: #333;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    border-radius: 6px 6px 0 0;
    transition: all 0.2s;
}
.share-tab:hover {
    background: #e8e8e8;
    color: #000;
}
.share-tab.active {
    background: #fff;
    color: #1565C0;
    border-bottom-color: #1565C0;
    font-weight: 600;
}

/* ============================================================================
   UPLOAD RETRY - Indicadores visuais
   ============================================================================ */
.upload-retrying {
    color: #e67e22 !important;
    font-weight: 600;
}

.progress-bar-retrying {
    background-color: #e67e22 !important;
    animation: upload-retry-pulse 1.5s ease-in-out infinite;
}

@keyframes upload-retry-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}