/* Mini-NAS Styles - Google Drive Inspired */

:root {
    --bg-primary: #f8f9fa;
    --bg-secondary: #ffffff;
    --bg-sidebar: #ffffff;
    --bg-hover: #e8f0fe;
    --bg-selected: #c2e7ff;
    --text-primary: #202124;
    --text-secondary: #5f6368;
    --border-color: #dadce0;
    --accent-color: #1a73e8;
    --accent-hover: #1557b0;
    --success-color: #34a853;
    --warning-color: #fbbc04;
    --error-color: #ea4335;
    --shadow-sm: 0 1px 2px rgba(60, 64, 67, 0.3);
    --shadow-md: 0 1px 3px rgba(60, 64, 67, 0.15);
    --shadow-lg: 0 4px 12px rgba(60, 64, 67, 0.15);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --sidebar-width: 260px;
}

[data-theme="dark"] {
    --bg-primary: #121212;
    --bg-secondary: #1e1e1e;
    --bg-sidebar: #1e1e1e;
    --bg-hover: #2d2d2d;
    --bg-selected: #3d3d3d;
    --text-primary: #e8eaed;
    --text-secondary: #9aa0a6;
    --border-color: #3c4043;
    --accent-color: #8ab4f8;
    --accent-hover: #aecbfa;
    --success-color: #81c995;
    --warning-color: #fdd663;
    --error-color: #f28b82;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 2px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.4);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    transition: background 0.3s, color 0.3s;
}

/* Screen Management */
.screen {
    min-height: 100vh;
}

.hidden {
    display: none !important;
}

/* Login Screen */
#login-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-color) 0%, #4285f4 100%);
}

.login-container {
    background: var(--bg-secondary);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 400px;
    animation: slideUp 0.3s ease;
}

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

.login-logo {
    text-align: center;
    margin-bottom: 30px;
}

.login-logo i {
    font-size: 48px;
    color: var(--accent-color);
    margin-bottom: 10px;
}

.login-logo h1 {
    font-size: 28px;
    font-weight: 600;
    color: var(--text-primary);
}

.login-form .form-group {
    margin-bottom: 20px;
}

.login-form label {
    display: block;
    margin-bottom: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
}

.login-form input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 15px;
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: border-color 0.2s;
}

.login-form input:focus {
    outline: none;
    border-color: var(--accent-color);
}

.error-message {
    color: var(--error-color);
    font-size: 14px;
    text-align: center;
    margin-top: 15px;
}

/* Main Layout */
#main-screen {
    display: flex;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    height: 100vh;
    padding: 20px;
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border-color);
    position: fixed;
    left: 0;
    top: 0;
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 20px;
}

.sidebar-header i {
    font-size: 28px;
    color: var(--accent-color);
}

.logo-text {
    font-size: 20px;
    font-weight: 600;
}

.btn-new {
    margin-bottom: 20px;
    padding: 14px 24px;
    font-size: 15px;
    box-shadow: var(--shadow-sm);
}

.sidebar-nav {
    flex: 1;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
    margin-bottom: 4px;
}

.nav-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--bg-selected);
    color: var(--accent-color);
}

.nav-item i {
    width: 20px;
    text-align: center;
}

.nav-divider {
    height: 1px;
    background: var(--border-color);
    margin: 16px 0;
}

.storage-info {
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.storage-bar {
    height: 6px;
    background: var(--bg-hover);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 8px;
}

.storage-used {
    height: 100%;
    background: var(--accent-color);
    border-radius: 3px;
    transition: width 0.3s;
}

.storage-info span {
    font-size: 12px;
    color: var(--text-secondary);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* Top Bar */
.top-bar {
    height: 64px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    gap: 20px;
}

.search-box {
    flex: 1;
    max-width: 600px;
    position: relative;
}

.search-box i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

.search-box input {
    width: 100%;
    padding: 12px 16px 12px 44px;
    border: 1px solid var(--border-color);
    border-radius: 24px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 14px;
    transition: all 0.2s;
}

.search-box input:focus {
    outline: none;
    border-color: var(--accent-color);
    background: var(--bg-secondary);
    box-shadow: var(--shadow-sm);
}

.top-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.icon-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.user-menu {
    position: relative;
}

.user-avatar {
    background: var(--accent-color);
    color: white;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    display: none;
    z-index: 100;
}

.dropdown-menu.show {
    display: block;
    animation: fadeIn 0.2s ease;
}

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

.dropdown-header {
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
}

.dropdown-header span {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
}

.dropdown-header small {
    color: var(--text-secondary);
}

.dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 14px;
    transition: background 0.2s;
}

.dropdown-menu a:hover {
    background: var(--bg-hover);
}

.dropdown-divider {
    height: 1px;
    background: var(--border-color);
    margin: 8px 0;
}

/* Breadcrumb */
.breadcrumb {
    height: 48px;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 24px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
}

.breadcrumb-item {
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: all 0.2s;
}

.breadcrumb-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.breadcrumb-item:last-child {
    color: var(--text-primary);
    font-weight: 500;
}

.breadcrumb-item:not(:last-child)::after {
    content: '/';
    margin-left: 8px;
    color: var(--border-color);
}

/* Content Area */
.content-area {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
}

.view {
    animation: fadeIn 0.3s ease;
}

.view-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.view-header h2 {
    font-size: 20px;
    font-weight: 600;
}

.view-actions {
    display: flex;
    gap: 8px;
}

/* File List */
.file-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 16px;
}

.file-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
}

.file-item:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--accent-color);
}

.file-item.selected {
    background: var(--bg-selected);
    border-color: var(--accent-color);
}

.file-icon {
    font-size: 48px;
    margin-bottom: 12px;
    color: var(--accent-color);
}

.file-item[data-type="folder"] .file-icon {
    color: #fbbc04;
}

.file-name {
    font-size: 13px;
    word-break: break-word;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.file-meta {
    font-size: 11px;
    color: var(--text-secondary);
}

/* Card Grid */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    transition: all 0.2s;
}

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

.card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: var(--bg-hover);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--accent-color);
}

.card-title {
    font-weight: 600;
    color: var(--text-primary);
}

.card-subtitle {
    font-size: 12px;
    color: var(--text-secondary);
}

.card-body {
    font-size: 13px;
    color: var(--text-secondary);
}

.card-footer {
    display: flex;
    gap: 8px;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

/* Data Table */
.data-table-container {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.data-table th {
    text-align: left;
    padding: 12px 16px;
    font-weight: 500;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-primary);
}

.data-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
}

.data-table tr:hover td {
    background: var(--bg-hover);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background: var(--accent-hover);
}

.btn-secondary {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: var(--border-color);
}

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

.btn-danger:hover {
    opacity: 0.9;
}

.btn-block {
    width: 100%;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

/* Modal */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal.show {
    display: flex;
    animation: fadeIn 0.2s ease;
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 600;
}

.modal-close {
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 50%;
    transition: all 0.2s;
}

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

.modal-body {
    padding: 24px;
    max-height: 60vh;
    overflow-y: auto;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-primary);
}

/* Form Elements in Modal */
.modal .form-group {
    margin-bottom: 20px;
}

.modal label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
}

.modal input,
.modal select,
.modal textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 14px;
    background: var(--bg-primary);
    color: var(--text-primary);
}

.modal input:focus,
.modal select:focus,
.modal textarea:focus {
    outline: none;
    border-color: var(--accent-color);
}

.modal .form-check {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.modal .form-check input[type="checkbox"] {
    width: auto;
}

/* Context Menu */
.context-menu {
    position: fixed;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 8px 0;
    min-width: 180px;
    display: none;
    z-index: 1001;
}

.context-menu.show {
    display: block;
    animation: fadeIn 0.1s ease;
}

.context-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    font-size: 14px;
    cursor: pointer;
    transition: background 0.2s;
}

.context-item:hover {
    background: var(--bg-hover);
}

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

.context-divider {
    height: 1px;
    background: var(--border-color);
    margin: 8px 0;
}

/* Upload Progress */
.upload-progress {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 16px 20px;
    min-width: 300px;
    z-index: 1002;
}

.upload-info {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    font-size: 14px;
}

.upload-info i {
    color: var(--accent-color);
}

.progress-bar {
    height: 4px;
    background: var(--bg-hover);
    border-radius: 2px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--accent-color);
    width: 0%;
    transition: width 0.3s;
}

/* Loading */
.loading {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 64px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--text-primary);
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 60px;
        padding: 12px 8px;
    }
    
    .logo-text,
    .nav-item span,
    .btn-new span,
    .storage-info {
        display: none;
    }
    
    .main-content {
        margin-left: 60px;
    }
    
    .btn-new {
        padding: 12px;
    }
    
    .nav-item {
        justify-content: center;
        padding: 12px;
    }
}

/* Protocol Info */
.protocol-info {
    padding: 16px;
}

.protocol-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    margin-bottom: 12px;
}

.protocol-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--accent-color);
}

.protocol-details h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 4px;
}

.protocol-details p {
    font-size: 12px;
    color: var(--text-secondary);
    font-family: monospace;
}

/* Badge */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 500;
}

.badge-success {
    background: rgba(52, 168, 83, 0.15);
    color: var(--success-color);
}

.badge-warning {
    background: rgba(251, 188, 4, 0.15);
    color: var(--warning-color);
}

.badge-error {
    background: rgba(234, 67, 53, 0.15);
    color: var(--error-color);
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: 24px;
    right: 24px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.toast {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 300px;
    animation: slideInRight 0.3s ease;
}

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

.toast.success {
    border-left: 4px solid var(--success-color);
}

.toast.error {
    border-left: 4px solid var(--error-color);
}

.toast.warning {
    border-left: 4px solid var(--warning-color);
}