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

:root {
    --color-header-bg: #24292f;
    --color-header-text: #ffffff;
    --color-header-link: rgba(255,255,255,0.7);
    --color-border: #d0d7de;
    --color-border-muted: #e7eff7;
    --color-canvas-default: #ffffff;
    --color-canvas-subtle: #f6f8fa;
    --color-fg-default: #24292f;
    --color-fg-muted: #57606a;
    --color-accent-fg: #0969da;
    --color-accent-emphasis: #0969da;
    --color-success-emphasis: #2da44e;
    --color-primer-shadow-inset: inset 0 1px 0 rgba(208,215,222,0.2);
}

body { 
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif;
    background: var(--color-canvas-default);
    color: var(--color-fg-default);
    line-height: 1.5;
    font-size: 14px;
}

.Header {
    background: var(--color-header-bg);
    padding: 16px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 1px 0 rgba(27,31,36,0.04);
}

.Header-left {
    display: flex;
    align-items: center;
    gap: 24px;
}

.Header-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--color-header-text);
    text-decoration: none;
    font-weight: 600;
    font-size: 18px;
}

.Header-logo i {
    font-size: 24px;
    color: white;
}

.Header-nav {
    display: flex;
    gap: 16px;
}

.Header-nav a {
    color: var(--color-header-link);
    text-decoration: none;
    font-weight: 500;
    padding: 8px 0;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
}

.Header-nav a:hover,
.Header-nav a.active {
    color: var(--color-header-text);
    border-bottom-color: var(--color-header-text);
}

.Header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.Header-user {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--color-header-text);
}

.Header-user .avatar {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 600;
}

.btn-header {
    background: transparent;
    border: 1px solid rgba(255,255,255,0.3);
    color: var(--color-header-text);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    text-decoration: none;
    transition: all 0.2s;
}

.btn-header:hover {
    background: rgba(255,255,255,0.1);
}

.Layout {
    max-height: 90vh;
    overflow: auto;
    display: flex;
    max-width: 1280px;
    margin: 0 auto;
    padding: 24px 32px;
    gap: 24px;
}

.Layout-sidebar {
    width: 256px;
    flex-shrink: 0;
}

.SideNav {
    list-style: none;
}

.SideNav-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    color: var(--color-fg-default);
    text-decoration: none;
    border-radius: 6px;
    margin-bottom: 4px;
    transition: background 0.2s;
}

.SideNav-item:hover {
    background: var(--color-canvas-subtle);
}

.SideNav-item.active {
    background: var(--color-canvas-subtle);
    font-weight: 600;
}

.SideNav-icon {
    width: 16px;
    text-align: center;
    opacity: 0.7;
}

.SideNav-count {
    margin-left: auto;
    background: var(--color-border-muted);
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
    color: var(--color-fg-muted);
}

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

.SideNav-heading {
    padding: 8px 16px;
    font-size: 12px;
    font-weight: 600;
    color: var(--color-fg-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.Layout-main {
    flex: 1;
    min-width: 0;
    overflow: auto;
}

.pagehead {
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 16px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.pagehead h1 {
    font-size: 20px;
    font-weight: 400;
    color: var(--color-fg-default);
}

.pagehead h1 strong {
    font-weight: 600;
}

.BtnGroup {
    display: flex;
}

.btn {
    padding: 6px 16px;
    font-size: 14px;
    font-weight: 500;
    border: 1px solid var(--color-border);
    background: var(--color-canvas-default);
    color: var(--color-fg-default);
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s;
}

.btn:first-child {
    border-radius: 6px 0 0 6px;
}

.btn:last-child {
    border-radius: 0 6px 6px 0;
}

.btn:not(:last-child) {
    border-right: none;
}

.btn:hover {
    background: var(--color-canvas-subtle);
}

.btn.active {
    background: var(--color-canvas-subtle);
}

.btn-primary {
    background: var(--color-success-emphasis);
    border-color: rgba(27,31,35,0.15);
    color: white;
}

.btn-primary:hover {
    background: #2c974b;
}

.Box {
    border: 1px solid var(--color-border);
    border-radius: 6px;
}

.Box-header {
    padding: 16px;
    background: var(--color-canvas-subtle);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.Box-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-fg-default);
}

.Box-body {
    padding: 16px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

@media (max-width: 1200px) {
    .Box-body {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .Box-body {
        grid-template-columns: 1fr;
        padding: 12px;
    }
}

.list-item {
    padding: 16px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    background: var(--color-canvas-default);
    transition: box-shadow 0.2s;
    position: relative;
}

.list-item:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.list-item-icon {
    width: 40px;
    height: 40px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.list-item-icon i {
    font-size: 18px;
}

.list-item-actions {
    position: absolute;
    top: 10px;
    right: 10px;
    display: flex;
    gap: 6px;
    z-index: 2;
}

.icon-btn {
    width: 30px;
    height: 30px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border);
    background: var(--color-canvas-default);
    color: var(--color-fg-muted);
    border-radius: 6px;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.15s;
}

.icon-btn:hover {
    background: var(--color-canvas-subtle);
    color: var(--color-fg-default);
}

.icon-btn i {
    font-size: 14px;
}

.list-item-icon.text {
    background: #ddf4ff;
    color: #0969da;
}

.list-item-icon.image {
    background: #ffebe9;
    color: #cf222e;
}

.list-item-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.list-item-title {
    font-weight: 600;
    color: var(--color-accent-fg);
    text-decoration: none;
    display: block;
    margin-bottom: 4px;
    font-size: 14px;
    line-height: 1.4;
}

.list-item-title:hover {
    text-decoration: underline;
}

.list-item-meta {
    color: var(--color-fg-muted);
    font-size: 12px;
    margin-bottom: 8px;
}

.list-item-meta a {
    color: var(--color-fg-muted);
    text-decoration: none;
}

.list-item-meta a:hover {
    color: var(--color-accent-fg);
    text-decoration: underline;
}

.list-item-preview {
    font-size: 13px;
    color: var(--color-fg-default);
    line-height: 1.6;
    word-wrap: break-word;
}

.list-item-preview.text-content {
    max-height: 300px;
    overflow-y: auto;
    white-space: pre-wrap;
    padding-right: 8px;
}

.list-item-preview.text-content::-webkit-scrollbar {
    width: 6px;
}

.list-item-preview.text-content::-webkit-scrollbar-track {
    background: var(--color-canvas-subtle);
    border-radius: 3px;
}

.list-item-preview.text-content::-webkit-scrollbar-thumb {
    background: var(--color-border-muted);
    border-radius: 3px;
}

.list-item-preview.text-content::-webkit-scrollbar-thumb:hover {
    background: var(--color-fg-muted);
}

.list-item-preview img {
    width: 100%;
    height: auto;
    max-height: 400px;
    object-fit: contain;
    border-radius: 6px;
    border: 1px solid var(--color-border);
    display: block;
}

.list-item-time {
    font-size: 12px;
    color: var(--color-fg-muted);
    white-space: nowrap;
}

.blankslate {
    padding: 48px;
    text-align: center;
    color: var(--color-fg-muted);
    grid-column: 1 / -1;
}

.blankslate-icon {
    font-size: 48px;
    margin-bottom: 16px;
    color: var(--color-border);
}

.blankslate h3 {
    font-size: 24px;
    font-weight: 400;
    color: var(--color-fg-default);
    margin-bottom: 8px;
}

.paginate-container {
    margin-top: 20px;
    display: flex;
    justify-content: center;
}

.pagination {
    display: flex;
    gap: 4px;
}

.pagination a,
.pagination span {
    padding: 6px 12px;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    color: var(--color-accent-fg);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.2s;
}

.pagination a:hover {
    background: var(--color-canvas-subtle);
}

.pagination .current {
    background: var(--color-accent-emphasis);
    border-color: var(--color-accent-emphasis);
    color: white;
}

.pagination .disabled {
    color: var(--color-fg-muted);
    cursor: not-allowed;
}

.pagination .disabled:hover {
    background: transparent;
}

.stats {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
}
.list-item-meta{
    display: none !important;
}

.stat {
    padding: 12px 16px;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    background: var(--color-canvas-default);
}

.stat-value {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-fg-default);
}

.stat-label {
    font-size: 12px;
    color: var(--color-fg-muted);
}

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

/* Login Page Styles */
.login-page {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif;
    background: #f6f8fa;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 340px;
}

.login-header {
    text-align: center;
    margin-bottom: 24px;
}

.login-header h1 {
    font-size: 24px;
    font-weight: 300;
    letter-spacing: -0.5px;
    color: #24292f;
    margin-bottom: 8px;
}

.login-header p {
    color: #57606a;
    font-size: 14px;
}

.login-box {
    background: #ffffff;
    border: 1px solid #d0d7de;
    border-radius: 6px;
    padding: 20px;
}

.login-form .form-group {
    margin-bottom: 16px;
}

.login-form label {
    display: block;
    font-size: 14px;
    font-weight: 400;
    color: #24292f;
    margin-bottom: 6px;
}

.login-form input {
    width: 100%;
    padding: 10px 12px;
    font-size: 14px;
    border: 1px solid #d0d7de;
    border-radius: 6px;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.login-form input:focus {
    border-color: #0969da;
    box-shadow: 0 0 0 3px rgba(9, 105, 218, 0.3);
}

.btn-signin {
    width: 100%;
    padding: 12px;
    background: #2da44e;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-signin:hover {
    background: #2c974b;
}

.error-message {
    background: #ffebe9;
    border: 1px solid #ffc0c0;
    border-radius: 6px;
    padding: 12px;
    margin-bottom: 16px;
    font-size: 13px;
    color: #cf222e;
}

.login-footer {
    text-align: center;
    margin-top: 16px;
    padding: 16px;
    border: 1px solid #d0d7de;
    border-radius: 6px;
    background: white;
}

.login-footer p {
    font-size: 12px;
    color: #57606a;
}

.test-credentials {
    margin-top: 8px;
    font-size: 12px;
    color: #57606a;
}

.test-credentials code {
    background: #f6f8fa;
    padding: 2px 6px;
    border-radius: 3px;
    font-family: 'SFMono-Regular', Consolas, monospace;
}

/* Register Page Styles */
.register-page {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: #0d1117;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.register-header {
    text-align: center;
    margin-bottom: 24px;
}

.register-logo {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #238636, #2ea043);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 24px;
    color: white;
}

.register-header h1 {
    color: #f0f6fc;
    font-size: 24px;
    font-weight: 300;
    letter-spacing: -0.5px;
    margin-bottom: 8px;
}

.register-subtitle {
    color: #8b949e;
    font-size: 14px;
}

.register-form-container {
    width: 100%;
    max-width: 340px;
    background: #161b22;
    border: 1px solid #30363d;
    border-radius: 6px;
    padding: 24px;
}

.register-form .form-group {
    margin-bottom: 16px;
}

.register-form label {
    display: block;
    color: #c9d1d9;
    font-size: 14px;
    font-weight: 400;
    margin-bottom: 6px;
}

.register-form input[type="text"],
.register-form input[type="password"],
.register-form input[type="email"] {
    width: 100%;
    padding: 8px 12px;
    font-size: 14px;
    background: #0d1117;
    border: 1px solid #30363d;
    border-radius: 6px;
    color: #f0f6fc;
    outline: none;
    transition: border-color 0.2s;
}

.register-form input:focus {
    border-color: #58a6ff;
}

.register-form input::placeholder {
    color: #6e7681;
}

.required {
    color: #da3633;
}

.btn-register {
    width: 100%;
    padding: 10px;
    font-size: 14px;
    font-weight: 500;
    background: #238636;
    border: none;
    border-radius: 6px;
    color: white;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-register:hover {
    background: #2ea043;
}

.register-error {
    background: rgba(218, 54, 51, 0.1);
    border: 1px solid rgba(218, 54, 51, 0.3);
    border-radius: 6px;
    padding: 12px;
    color: #f85149;
    font-size: 13px;
    margin-bottom: 16px;
}

.register-success {
    background: rgba(35, 134, 54, 0.1);
    border: 1px solid rgba(35, 134, 54, 0.3);
    border-radius: 6px;
    padding: 12px;
    color: #3fb950;
    font-size: 13px;
    margin-bottom: 16px;
}

.register-footer {
    margin-top: 16px;
    padding: 16px;
    border: 1px solid #30363d;
    border-radius: 6px;
    text-align: center;
    background: #161b22;
}

.register-footer a {
    color: #58a6ff;
    text-decoration: none;
    font-size: 14px;
}

.register-footer a:hover {
    text-decoration: underline;
}

.hint {
    color: #6e7681;
    font-size: 12px;
    margin-top: 4px;
}

/* Mobile Hamburger Menu */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--color-header-text);
    font-size: 20px;
    cursor: pointer;
    padding: 8px;
    margin-right: 12px;
}

.mobile-drawer {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 280px;
    height: 100vh;
    background: var(--color-canvas-default);
    border-right: 1px solid var(--color-border);
    z-index: 1000;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
}

.mobile-drawer.open {
    transform: translateX(0);
}

.mobile-drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-header-bg);
    color: var(--color-header-text);
}

.mobile-drawer-header h3 {
    margin: 0;
    font-size: 16px;
}

.mobile-drawer-close {
    background: none;
    border: none;
    color: var(--color-header-text);
    font-size: 20px;
    cursor: pointer;
    padding: 4px;
}

.mobile-drawer-content {
    padding: 16px;
}

.mobile-drawer .SideNav {
    display: flex;
    flex-direction: column;
}

.mobile-drawer .SideNav-item {
    padding: 12px 0;
}

.mobile-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
}

.mobile-overlay.open {
    display: block;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .Header {
        padding: 12px 16px;
    }
    
    .Header-nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .mobile-drawer {
        display: block;
    }
    
    .Layout {
        flex-direction: column;
        padding: 16px;
    }
    
    .Layout-sidebar {
        display: none;
    }
    
    .Box-body {
        grid-template-columns: 1fr;
        padding: 12px;
    }
}