/* ============================================================================
   ESTILOS PRINCIPALES - IMG.GTAStark
   ============================================================================ */

:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --white-color: #ffffff;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    --border-radius: 0.375rem;
    --box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --box-shadow-lg: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    --transition: all 0.15s ease-in-out;
}

/* ============================================================================
   RESET Y BASE
   ============================================================================ */

* {
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--gray-900);
    background-color: var(--gray-100);
    margin: 0;
    padding: 0;
}

/* ============================================================================
   MENÚ DESPLEGABLE DEL USUARIO
   ============================================================================ */

.dropdown-menu {
    border: none;
    box-shadow: var(--box-shadow-lg);
    border-radius: var(--border-radius);
    padding: 0.5rem 0;
    min-width: 200px;
    overflow: visible;
}

.dropdown-item {
    padding: 0.75rem 1rem;
    color: var(--gray-700);
    font-weight: 500;
    line-height: 1.4;
    border: none;
    background: transparent;
    transition: var(--transition);
    display: flex;
    align-items: center;
    text-decoration: none;
    white-space: nowrap;
    overflow: visible;
}

.dropdown-item:hover {
    background-color: var(--gray-100);
    color: var(--primary-color);
    text-decoration: none;
}

.dropdown-item:focus {
    background-color: var(--gray-100);
    color: var(--primary-color);
    outline: none;
}

.dropdown-item i {
    width: 16px;
    margin-right: 0.5rem;
    text-align: center;
}

.dropdown-divider {
    margin: 0.5rem 0;
    border-color: var(--gray-200);
}

/* Asegurar que el texto no se corte */
.dropdown-toggle {
    white-space: nowrap;
    overflow: visible;
    text-overflow: clip;
}

.dropdown-toggle::after {
    margin-left: 0.5rem;
}

/* ============================================================================
   BOTÓN DEL USUARIO EN NAVBAR
   ============================================================================ */

.navbar .dropdown {
    position: relative;
}

.navbar .dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: visible;
    text-overflow: clip;
    min-width: auto;
}

.navbar .dropdown-toggle i {
    font-size: 1.1rem;
}

.navbar .dropdown-toggle::after {
    margin-left: 0.5rem;
    vertical-align: middle;
}

/* Asegurar que el menú se posicione correctamente */
.navbar .dropdown-menu {
    position: absolute;
    right: 0;
    left: auto;
    top: 100%;
    margin-top: 0.125rem;
    z-index: 1000;
}

/* ============================================================================
   NAVEGACIÓN
   ============================================================================ */

.navbar {
    box-shadow: var(--box-shadow);
    border-bottom: 1px solid var(--gray-200);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--white-color) !important;
}

.navbar-brand:hover {
    color: var(--gray-200) !important;
}

.navbar-nav .nav-link {
    color: var(--gray-600);
    font-weight: 500;
    transition: var(--transition);
}

.navbar-nav .nav-link:hover {
    color: var(--primary-color);
}

.navbar-nav .nav-link.active {
    color: var(--primary-color);
    font-weight: 600;
}

/* ============================================================================
   SIDEBAR
   ============================================================================ */

.sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 100;
    padding: 48px 0 0;
    box-shadow: inset -1px 0 0 rgba(0, 0, 0, 0.1);
    background-color: var(--dark-color);
    min-height: 100vh;
}

.sidebar .nav-link {
    color: var(--gray-300);
    padding: 0.75rem 1rem;
    font-weight: 500;
    transition: var(--transition);
}

.sidebar .nav-link:hover {
    color: var(--white-color);
    background-color: rgba(255, 255, 255, 0.1);
}

.sidebar .nav-link.active {
    color: var(--white-color);
    background-color: var(--primary-color);
}

.sidebar .nav-link i {
    width: 20px;
    text-align: center;
    margin-right: 0.5rem;
}

.sidebar .nav {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.sidebar .nav-item.mt-auto {
    margin-top: auto !important;
}

.sidebar .nav-link.text-danger {
    color: var(--danger-color) !important;
}

.sidebar .nav-link.text-danger:hover {
    background-color: rgba(220, 53, 69, 0.2);
    color: var(--white-color) !important;
}

/* ============================================================================
   CONTENIDO PRINCIPAL
   ============================================================================ */

main {
    padding-top: 1.5rem;
    padding-bottom: 2rem;
}

.hero-section {
    padding: 3rem 0;
    text-align: center;
}

.hero-section h1 {
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--gray-900);
}

.hero-section .lead {
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-bottom: 2rem;
}

/* ============================================================================
   TARJETAS DE CARACTERÍSTICAS
   ============================================================================ */

.feature-card {
    padding: 2rem 1rem;
    text-align: center;
    background: var(--white-color);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    height: 100%;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-lg);
}

.feature-card h5 {
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--gray-800);
}

.feature-card p {
    color: var(--gray-600);
    margin-bottom: 0;
}

/* ============================================================================
   PROGRESO CIRCULAR
   ============================================================================ */

.progress-circle {
    position: relative;
    width: 150px;
    height: 150px;
    margin: 0 auto;
}

.progress-circle::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 8px solid var(--gray-200);
    border-radius: 50%;
}

.progress-circle-inner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.progress-percentage {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
}

.progress-label {
    display: block;
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-top: 0.25rem;
}

/* ============================================================================
   MODAL DE SUBIDA
   ============================================================================ */

.modal-content {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow-lg);
}

.modal-header {
    background-color: var(--primary-color);
    color: var(--white-color);
    border-bottom: none;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.modal-header .btn-close {
    filter: invert(1);
}

.modal-title {
    font-weight: 600;
}

/* ============================================================================
   FORMULARIOS
   ============================================================================ */

.form-control, .form-select {
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius);
    padding: 0.75rem;
    transition: var(--transition);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.form-label {
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
}

.form-text {
    color: var(--gray-600);
    font-size: 0.875rem;
}

/* ============================================================================
   BOTONES
   ============================================================================ */

.btn {
    font-weight: 500;
    border-radius: var(--border-radius);
    padding: 0.5rem 1rem;
    transition: var(--transition);
    border: none;
}

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

.btn-primary:hover {
    background-color: #0056b3;
    transform: translateY(-1px);
    box-shadow: var(--box-shadow);
}

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

.btn-success:hover {
    background-color: #1e7e34;
    transform: translateY(-1px);
    box-shadow: var(--box-shadow);
}

.btn-outline-light {
    border-color: var(--gray-300);
    color: var(--gray-700);
}

.btn-outline-light:hover {
    background-color: var(--gray-700);
    border-color: var(--gray-700);
    color: var(--white-color);
}

/* ============================================================================
   PROGRESO DE SUBIDA
   ============================================================================ */

.progress {
    height: 0.5rem;
    border-radius: var(--border-radius);
    background-color: var(--gray-200);
}

.progress-bar {
    background-color: var(--primary-color);
    border-radius: var(--border-radius);
    transition: width 0.3s ease;
}

/* ============================================================================
   RESULTADOS DE SUBIDA
   ============================================================================ */

.upload-result {
    background-color: var(--gray-100);
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    padding: 1rem;
    margin-bottom: 1rem;
}

.upload-result h6 {
    color: var(--gray-700);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.link-group {
    margin-bottom: 0.5rem;
}

.link-group label {
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.25rem;
    font-size: 0.875rem;
}

.link-input {
    background-color: var(--white-color);
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    padding: 0.5rem;
    font-size: 0.875rem;
    font-family: 'Courier New', monospace;
    width: 100%;
}

.copy-btn {
    background-color: var(--gray-600);
    color: var(--white-color);
    border: none;
    border-radius: var(--border-radius);
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition);
}

.copy-btn:hover {
    background-color: var(--gray-700);
}

/* ============================================================================
   TARJETAS
   ============================================================================ */

.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.card:hover {
    box-shadow: var(--box-shadow-lg);
}

.card-header {
    background-color: var(--white-color);
    border-bottom: 1px solid var(--gray-200);
    font-weight: 600;
    color: var(--gray-700);
}

.card-body {
    padding: 1.5rem;
}

.card-title {
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 1rem;
}

/* ============================================================================
   ESTADÍSTICAS
   ============================================================================ */

.stats-number {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stats-label {
    font-size: 0.875rem;
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ============================================================================
   GALERÍA DE IMÁGENES
   ============================================================================ */

.image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.image-card {
    background: var(--white-color);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
    transition: var(--transition);
}

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

.image-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.image-card-body {
    padding: 1rem;
}

.image-card-title {
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.image-card-meta {
    font-size: 0.75rem;
    color: var(--gray-600);
    margin-bottom: 0.5rem;
}

.image-card-actions {
    display: flex;
    gap: 0.5rem;
}

.image-card-actions .btn {
    flex: 1;
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
}

/* ============================================================================
   NOTIFICACIONES
   ============================================================================ */

.notification-item {
    background: var(--white-color);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius);
    padding: 1rem;
    margin-bottom: 1rem;
    transition: var(--transition);
}

.notification-item:hover {
    background-color: var(--gray-50);
}

.notification-item.unread {
    border-left: 4px solid var(--primary-color);
    background-color: #f8f9ff;
}

.notification-title {
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 0.25rem;
}

.notification-message {
    color: var(--gray-600);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.notification-time {
    font-size: 0.75rem;
    color: var(--gray-500);
}

/* ============================================================================
   RESPONSIVE
   ============================================================================ */

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease-in-out;
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .hero-section {
        padding: 2rem 1rem;
    }
    
    .hero-section h1 {
        font-size: 2rem;
    }
    
    .feature-card {
        margin-bottom: 1rem;
    }
    
    .progress-circle {
        width: 80px;
        height: 80px;
    }
    
    .progress-percentage {
        font-size: 1rem;
    }
    
    .image-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
    
    .stats-number {
        font-size: 1.5rem;
    }
    
    /* Estilos responsivos para el menú desplegable */
    .navbar .dropdown-menu {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        width: 100%;
        border-radius: 0;
        margin-top: 0;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }
    
    .navbar .dropdown-toggle {
        padding: 0.5rem 0.75rem;
        font-size: 0.9rem;
    }
    
    .dropdown-item {
        padding: 1rem;
        font-size: 1rem;
        line-height: 1.5;
    }
}

@media (max-width: 576px) {
    .navbar-brand {
        font-size: 1.25rem;
    }
    
    .hero-section h1 {
        font-size: 1.75rem;
    }
    
    .hero-section .lead {
        font-size: 1rem;
    }
    
    .image-grid {
        grid-template-columns: 1fr;
    }
    
    .modal-dialog {
        margin: 0.5rem;
        max-width: calc(100% - 1rem);
    }
    
    /* Estilos específicos para móviles pequeños */
    .navbar .dropdown-toggle {
        padding: 0.4rem 0.6rem;
        font-size: 0.85rem;
    }
    
    .navbar .dropdown-toggle i {
        font-size: 1rem;
    }
    
    .dropdown-item {
        padding: 0.875rem 1rem;
        font-size: 0.95rem;
    }
    
    .dropdown-item i {
        width: 14px;
        margin-right: 0.4rem;
    }
    
    /* Estilos específicos para enlaces en móviles pequeños */
    .upload-results {
        padding: 1rem;
        margin-top: 1rem;
    }
    
    .uploaded-image-item {
        padding: 0.75rem;
        margin-bottom: 0.75rem;
    }
    
    .image-header {
        gap: 0.25rem;
    }
    
    .image-header h6 {
        font-size: 0.9rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }
    
    .image-number {
        font-size: 0.65rem;
        padding: 0.15rem 0.3rem;
        min-width: 20px;
    }
    
    .image-size {
        font-size: 0.65rem;
        padding: 0.15rem 0.5rem;
    }
    
    .link-item {
        padding: 0.75rem;
        gap: 0.5rem;
    }
    
    .link-item textarea {
        font-size: 0.75rem;
        padding: 0.5rem;
        min-height: 3rem;
    }
    
    .copy-btn {
        padding: 0.5rem 0.75rem;
        font-size: 0.75rem;
        min-width: 70px;
    }
    
    /* Estilos específicos para vista previa en móviles pequeños */
    .preview-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
        gap: 0.5rem;
    }
    
    .preview-item {
        max-width: 150px;
        min-width: 100px;
        aspect-ratio: 1/1;
    }
    
    .preview-item img {
        max-height: 100px;
        min-height: 80px;
    }
    
    .preview-item-info {
        font-size: 0.65rem;
        padding: 0.3rem;
    }
    
    /* Estilos específicos para copiar todos los enlaces en móviles pequeños */
    .copy-all-section {
        padding: 0.75rem;
        margin-bottom: 1rem;
    }
    
    .copy-all-header h5 {
        font-size: 0.9rem;
    }
    
    .copy-all-buttons {
        gap: 0.25rem;
    }
    
    .copy-all-buttons .btn {
        font-size: 0.7rem;
        padding: 0.3rem 0.5rem;
    }
}

/* ============================================================================
   ANIMACIONES
   ============================================================================ */

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

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

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

.slide-in {
    animation: slideIn 0.3s ease-out;
}

/* ============================================================================
   UTILIDADES
   ============================================================================ */

.text-primary { color: var(--primary-color) !important; }
.text-success { color: var(--success-color) !important; }
.text-danger { color: var(--danger-color) !important; }
.text-warning { color: var(--warning-color) !important; }
.text-info { color: var(--info-color) !important; }

.bg-primary { background-color: var(--primary-color) !important; }
.bg-success { background-color: var(--success-color) !important; }
.bg-danger { background-color: var(--danger-color) !important; }
.bg-warning { background-color: var(--warning-color) !important; }
.bg-info { background-color: var(--info-color) !important; }

.shadow-sm { box-shadow: var(--box-shadow) !important; }
.shadow { box-shadow: var(--box-shadow-lg) !important; }

.rounded { border-radius: var(--border-radius) !important; }

/* ============================================================================
   LOADING SPINNER
   ============================================================================ */

.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--white-color);
    animation: spin 1s ease-in-out infinite;
}

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

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

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

.tooltip .tooltiptext {
    visibility: hidden;
    width: 120px;
    background-color: var(--gray-800);
    color: var(--white-color);
    text-align: center;
    border-radius: var(--border-radius);
    padding: 5px;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    margin-left: -60px;
    opacity: 0;
    transition: opacity 0.3s;
    font-size: 0.75rem;
}

.tooltip:hover .tooltiptext {
    visibility: visible;
    opacity: 1;
}

/* ============================================================================
   SCROLLBAR PERSONALIZADA
   ============================================================================ */

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-200);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-400);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-500);
}

/* ============================================================================
   ÁREA DE SUBIDA PRINCIPAL
   ============================================================================ */

.upload-area-container {
    margin: 2rem 0;
}

        .upload-area {
            background: var(--white-color);
            border: 3px dashed var(--primary-color);
            border-radius: 1rem;
            padding: 1.5rem 1rem;
            text-align: center;
            transition: var(--transition);
            cursor: pointer;
            position: relative;
            overflow: hidden;
            box-shadow: var(--box-shadow);
        }

.upload-area:hover {
    border-color: var(--success-color);
    background: linear-gradient(135deg, rgba(0, 123, 255, 0.05), rgba(40, 167, 69, 0.05));
    transform: translateY(-2px);
    box-shadow: var(--box-shadow-lg);
}

.upload-area.dragover {
    border-color: var(--success-color);
    background: linear-gradient(135deg, rgba(0, 123, 255, 0.1), rgba(40, 167, 69, 0.1));
    transform: scale(1.02);
}

.upload-area-content {
    position: relative;
    z-index: 2;
}

        .upload-icon {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 0.75rem;
            animation: float 3s ease-in-out infinite;
        }

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

        .upload-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--gray-800);
            margin-bottom: 0.5rem;
        }

        .upload-description {
            font-size: 0.9rem;
            color: var(--gray-600);
            margin-bottom: 1rem;
        }

        .upload-buttons {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }

.upload-or {
    color: var(--gray-500);
    font-weight: 600;
    margin: 0.5rem 0;
}

        .upload-options {
            margin: 1rem 0;
            padding: 0.75rem;
            background: var(--gray-50);
            border-radius: var(--border-radius);
            border: 1px solid var(--gray-200);
        }

.upload-options .form-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
}

.upload-options .form-select {
    font-size: 0.9rem;
    border-color: var(--gray-300);
}

.upload-options .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.upload-info {
    background: var(--gray-100);
    padding: 1rem;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--info-color);
}

.upload-info p {
    margin: 0;
    color: var(--gray-700);
    font-size: 0.9rem;
}

/* Área de vista previa */
.preview-area {
    background: var(--white-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--box-shadow);
    margin-top: 2rem;
    animation: slideIn 0.3s ease-out;
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--gray-200);
}

.preview-header h4 {
    margin: 0;
    color: var(--gray-800);
    font-weight: 600;
}

.preview-count {
    background: var(--primary-color);
    color: var(--white-color);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.preview-count::before {
    content: "📷";
    font-size: 1rem;
}

.preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
    max-width: 100%;
    overflow: hidden;
    min-width: max-content;
    grid-auto-flow: column;
    grid-auto-columns: minmax(150px, 1fr);
}

.preview-grid-container {
    overflow-x: auto;
    overflow-y: hidden;
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
}

.preview-grid-container::-webkit-scrollbar {
    height: 6px;
}

.preview-grid-container::-webkit-scrollbar-track {
    background: var(--gray-200);
    border-radius: 3px;
}

.preview-grid-container::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 3px;
}

.preview-grid-container::-webkit-scrollbar-thumb:hover {
    background: var(--success-color);
}

.preview-item {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    max-width: 200px;
    min-width: 150px;
    aspect-ratio: 4/3;
    background: var(--white-color);
}

.preview-item:hover {
    transform: scale(1.02);
    box-shadow: var(--box-shadow-lg);
}

.preview-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    max-height: 150px;
    min-height: 120px;
}

.preview-item-info {
    padding: 0.5rem;
    background: var(--gray-100);
    font-size: 0.8rem;
    color: var(--gray-700);
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.7);
    color: var(--white-color);
    backdrop-filter: blur(5px);
}

.preview-item-info div:first-child {
    font-weight: 600;
    margin-bottom: 0.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.preview-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 1.5rem;
}

.progress-container {
    background: var(--gray-50);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin: 1rem 0;
    border: 1px solid var(--gray-200);
    text-align: center;
}

.progress {
    height: 1.5rem;
    border-radius: 0.75rem;
    background: var(--gray-200);
    overflow: hidden;
}

.progress-bar {
    background: linear-gradient(90deg, var(--primary-color), var(--success-color));
    transition: width 0.3s ease;
    font-size: 0.8rem;
    font-weight: 600;
    line-height: 1.5rem;
}

/* Resultados de subida - Diseño similar a imgfz */
.upload-results {
    background: var(--white-color);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    margin-top: 2rem;
    animation: slideIn 0.3s ease-out;
    border: 1px solid var(--gray-200);
}

.uploaded-image-item {
    background: var(--white-color);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--gray-200);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.uploaded-image-item:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.image-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--gray-100);
}

.image-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.image-icon {
    font-size: 2rem;
    color: var(--primary-color);
    background: var(--gray-100);
    padding: 0.75rem;
    border-radius: 8px;
}

.image-info h6 {
    margin: 0;
    color: var(--gray-800);
    font-weight: 600;
    font-size: 1.2rem;
}

.image-size {
    background: var(--primary-color);
    color: var(--white-color);
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.link-group {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.link-item {
    background: var(--gray-50);
    border-radius: 8px;
    padding: 1rem;
    border: 1px solid var(--gray-200);
    transition: all 0.3s ease;
}

.link-item:hover {
    background: var(--gray-100);
    border-color: var(--primary-color);
}

.link-item::before {
    content: attr(data-label);
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--gray-200);
}

.link-content {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.link-textarea {
    flex: 1;
    border: 2px solid var(--gray-300);
    background: var(--white-color);
    font-size: 0.9rem;
    color: var(--gray-800);
    font-family: 'Courier New', monospace;
    padding: 0.75rem;
    border-radius: 6px;
    min-height: 3rem;
    max-height: 8rem;
    resize: none;
    line-height: 1.4;
    word-break: break-all;
    white-space: pre-wrap;
    overflow-wrap: break-word;
    transition: all 0.3s ease;
}

.link-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.copy-btn {
    background: var(--success-color);
    color: var(--white-color);
    border: none;
    padding: 0.75rem 1.25rem;
    border-radius: 6px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    flex-shrink: 0;
    min-width: 100px;
    justify-content: center;
}

.copy-btn:hover {
    background: #28a745;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.3);
}

.copy-btn:active {
    transform: translateY(0);
}

.copy-btn i {
    font-size: 0.8rem;
}

/* Sección para copiar todos los enlaces */
.copy-all-section {
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
    color: var(--white-color);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    box-shadow: 0 4px 16px rgba(0, 123, 255, 0.3);
}

.copy-all-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.copy-all-header h5 {
    margin: 0;
    font-weight: 600;
    font-size: 1.1rem;
}

.copy-all-buttons {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.copy-all-buttons .btn {
    background: rgba(255, 255, 255, 0.2);
    color: var(--white-color);
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 0.6rem 1rem;
    border-radius: 6px;
    font-size: 0.85rem;
    transition: all 0.3s ease;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

.copy-all-buttons .btn:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
} 

/* Responsive para área de subida */
@media (max-width: 768px) {
    .upload-area {
        padding: 2rem 1rem;
    }
    
    .upload-title {
        font-size: 1.5rem;
    }
    
    .upload-buttons {
        flex-direction: column;
    }
    
    .preview-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: 0.75rem;
    }
    
    .preview-item {
        max-width: 180px;
        min-width: 120px;
        aspect-ratio: 1/1;
    }
    
    .preview-item img {
        max-height: 120px;
        min-height: 100px;
    }
    
    .preview-item-info {
        font-size: 0.7rem;
        padding: 0.4rem;
    }
    
    /* Estilos responsivos para los enlaces */
    .upload-results {
        padding: 1.5rem;
        margin-top: 1.5rem;
    }
    
    .uploaded-image-item {
        padding: 1rem;
        margin-bottom: 1rem;
    }
    
    .image-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
    
    .image-info {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .image-icon {
        font-size: 1.5rem;
        padding: 0.5rem;
    }
    
    .image-info h6 {
        font-size: 1rem;
    }
    
    .image-size {
        font-size: 0.7rem;
        padding: 0.3rem 0.6rem;
    }
    
    .link-item {
        padding: 0.75rem;
    }
    
    .link-content {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .link-textarea {
        font-size: 0.8rem;
        padding: 0.6rem;
        min-height: 3rem;
    }
    
    .copy-btn {
        align-self: stretch;
        padding: 0.6rem 1rem;
        font-size: 0.8rem;
        min-width: auto;
    }
    
    /* Estilos responsivos para copiar todos los enlaces */
    .copy-all-section {
        padding: 1rem;
        margin-bottom: 1.5rem;
    }
    
    .copy-all-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
    
    .copy-all-header h5 {
        font-size: 1rem;
    }
    
    .copy-all-buttons {
        width: 100%;
        justify-content: center;
    }
    
    .copy-all-buttons .btn {
        font-size: 0.75rem;
        padding: 0.4rem 0.6rem;
    }
} 

/* Botón de login rápido */
.btn-warning.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
    border-radius: 0.375rem;
    transition: all 0.15s ease-in-out;
}

.btn-warning.btn-sm:hover {
    transform: scale(1.05);
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.15);
}

/* Estilos para el círculo de progreso */
.progress-circle {
    position: relative;
    width: 120px;
    height: 120px;
    margin: 0 auto;
    border-radius: 50%;
    background: conic-gradient(var(--primary-color) 0deg, var(--gray-200) 0deg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.progress-circle::before {
    content: '';
    position: absolute;
    width: 80px;
    height: 80px;
    background: white;
    border-radius: 50%;
}

.progress-circle-inner {
    position: relative;
    z-index: 1;
    text-align: center;
}

.progress-percentage {
    display: block;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    line-height: 1;
}

.progress-label {
    display: block;
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-top: 0.25rem;
}