@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* Material Design CSS Framework - Link Manager Application */

/* ==================== CSS VARIABLES ==================== */
:root {
    /* Primary Colors */
    --md-primary: #ff6b1a;
    --md-primary-dark: #df4f00;
    --md-primary-light: #fff3ea;
    --md-primary-hover: #f15b05;
    
    /* Secondary Colors */
    --md-secondary: #111827;
    --md-secondary-dark: #0f172a;
    --md-secondary-light: #f3f4f6;
    
    /* Neutral Colors */
    --md-white: #FFFFFF;
    --md-black: #000000;
    --md-grey-50: #FAFAFA;
    --md-grey-100: #F5F5F5;
    --md-grey-200: #EEEEEE;
    --md-grey-300: #E0E0E0;
    --md-grey-400: #BDBDBD;
    --md-grey-500: #9E9E9E;
    --md-grey-600: #757575;
    --md-grey-700: #616161;
    --md-grey-800: #424242;
    --md-grey-900: #212121;
    
    /* Semantic Colors */
    --md-success: #4CAF50;
    --md-success-light: #C8E6C9;
    --md-error: #F44336;
    --md-error-light: #FFCDD2;
    --md-warning: #FF9800;
    --md-warning-light: #FFE0B2;
    --md-info: #00BCD4;
    --md-info-light: #B2EBF2;
    
    /* Shadows */
    --md-shadow-1: 0 1px 2px rgba(15, 23, 42, 0.04), 0 1px 3px rgba(15, 23, 42, 0.06);
    --md-shadow-2: 0 8px 24px rgba(15, 23, 42, 0.06);
    --md-shadow-3: 0 18px 42px rgba(15, 23, 42, 0.10);
    --md-shadow-4: 0 22px 55px rgba(15, 23, 42, 0.12);
    --md-shadow-5: 0 28px 70px rgba(15, 23, 42, 0.18);
    
    /* Typography */
    --md-font-family: 'Inter', 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --md-font-size-xs: 0.6875rem;
    --md-font-size-sm: 0.8125rem;
    --md-font-size-base: 0.9375rem;
    --md-font-size-lg: 1.0625rem;
    --md-font-size-xl: 1.25rem;
    --md-font-size-2xl: 1.625rem;
    --md-font-size-3xl: 2rem;
    --md-font-size-4xl: 2.375rem;
    
    /* Spacing */
    --md-spacing-xs: 0.25rem;
    --md-spacing-sm: 0.5rem;
    --md-spacing-md: 1rem;
    --md-spacing-lg: 1.5rem;
    --md-spacing-xl: 2rem;
    --md-spacing-2xl: 3rem;
    
    /* Border Radius */
    --md-radius-sm: 4px;
    --md-radius-md: 8px;
    --md-radius-lg: 12px;
    --md-radius-xl: 16px;
    --md-radius-full: 50%;
    
    /* Transitions */
    --md-transition-fast: 150ms ease;
    --md-transition-normal: 300ms ease;
    --md-transition-slow: 450ms ease;
    
    /* Z-Index Scale */
    --md-z-dropdown: 1000;
    --md-z-sticky: 1020;
    --md-z-fixed: 1030;
    --md-z-modal-backdrop: 1040;
    --md-z-modal: 1050;
    --md-z-tooltip: 1070;
}

/* ==================== RESET & BASE ==================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--md-font-family);
    font-size: var(--md-font-size-base);
    line-height: 1.6;
    color: var(--md-grey-900);
    background-color: var(--md-grey-100);
    min-height: 100vh;
}

/* ==================== TYPOGRAPHY ==================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 500;
    line-height: 1.2;
    margin-bottom: var(--md-spacing-md);
    color: var(--md-grey-900);
}

h1 { font-size: var(--md-font-size-4xl); }
h2 { font-size: var(--md-font-size-3xl); }
h3 { font-size: var(--md-font-size-2xl); }
h4 { font-size: var(--md-font-size-xl); }
h5 { font-size: var(--md-font-size-lg); }
h6 { font-size: var(--md-font-size-base); }

p {
    margin-bottom: var(--md-spacing-md);
}

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

a:hover {
    color: var(--md-primary-dark);
    text-decoration: underline;
}

/* ==================== LAYOUT ==================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--md-spacing-md);
}

.main-wrapper {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    background: var(--md-white);
    box-shadow: var(--md-shadow-2);
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    z-index: var(--md-z-sticky);
    transition: transform var(--md-transition-normal);
}

.sidebar-header {
    padding: var(--md-spacing-lg);
    background: linear-gradient(135deg, var(--md-primary), var(--md-primary-dark));
    color: var(--md-white);
}

.sidebar-header h3 {
    margin: 0;
    color: var(--md-white);
    font-size: var(--md-font-size-xl);
}

.sidebar-nav {
    padding: var(--md-spacing-md) 0;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: var(--md-spacing-md) var(--md-spacing-lg);
    color: var(--md-grey-700);
    transition: all var(--md-transition-fast);
    border-left: 3px solid transparent;
}

.nav-item:hover {
    background: var(--md-grey-100);
    color: var(--md-primary);
    text-decoration: none;
    border-left-color: var(--md-primary);
}

.nav-item.active {
    background: var(--md-primary-light);
    color: var(--md-primary-dark);
    border-left-color: var(--md-primary-dark);
    font-weight: 500;
}

.nav-item i {
    width: 24px;
    margin-right: var(--md-spacing-md);
    font-size: var(--md-font-size-lg);
}

.main-content {
    flex: 1;
    margin-left: 260px;
    min-height: 100vh;
}

.top-bar {
    background: var(--md-white);
    padding: var(--md-spacing-md) var(--md-spacing-xl);
    box-shadow: var(--md-shadow-1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: var(--md-z-sticky);
}

.page-content {
    padding: var(--md-spacing-xl);
}

/* ==================== CARDS ==================== */
.md-card {
    background: var(--md-white);
    border-radius: var(--md-radius-md);
    box-shadow: var(--md-shadow-1);
    padding: var(--md-spacing-lg);
    margin-bottom: var(--md-spacing-lg);
    transition: box-shadow var(--md-transition-normal);
}

.md-card:hover {
    box-shadow: var(--md-shadow-2);
}

.md-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--md-spacing-md);
    padding-bottom: var(--md-spacing-md);
    border-bottom: 1px solid var(--md-grey-200);
}

.md-card-title {
    font-size: var(--md-font-size-lg);
    font-weight: 500;
    margin: 0;
    margin-right: 15px;
    color: var(--md-grey-900);
}

.md-card-body {
    color: var(--md-grey-700);
}

.md-card-footer {
    margin-top: var(--md-spacing-md);
    padding-top: var(--md-spacing-md);
    border-top: 1px solid var(--md-grey-200);
}

/* ==================== LINK CARDS GRID ==================== */
.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--md-spacing-lg);
}

.link-card {
    background: var(--md-white);
    border-radius: var(--md-radius-lg);
    box-shadow: var(--md-shadow-1);
    overflow: hidden;
    transition: all var(--md-transition-normal);
    display: flex;
    flex-direction: column;
}

.link-card:hover {
    box-shadow: var(--md-shadow-3);
    transform: translateY(-4px);
}

.link-card-header {
    padding: var(--md-spacing-md) var(--md-spacing-lg);
    background: var(--md-grey-50);
    border-bottom: 1px solid var(--md-grey-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.link-type-badge {
    display: inline-flex;
    align-items: center;
    padding: var(--md-spacing-xs) var(--md-spacing-sm);
    border-radius: var(--md-radius-sm);
    font-size: var(--md-font-size-xs);
    font-weight: 500;
    text-transform: uppercase;
}

.link-type-badge.youtube {
    background: var(--md-error-light);
    color: var(--md-error);
}

.link-type-badge.website {
    background: var(--md-info-light);
    color: var(--md-info);
}

.link-card-body {
    padding: var(--md-spacing-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.link-card-title {
    font-size: var(--md-font-size-lg);
    font-weight: 500;
    color: var(--md-grey-900);
    margin-bottom: var(--md-spacing-sm);
    line-height: 1.4;
}

.link-card-description {
    color: var(--md-grey-600);
    font-size: var(--md-font-size-sm);
    margin-bottom: var(--md-spacing-md);
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.link-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--md-spacing-sm);
    margin-bottom: var(--md-spacing-md);
}

.meta-item {
    display: inline-flex;
    align-items: center;
    font-size: var(--md-font-size-xs);
    color: var(--md-grey-500);
}

.meta-item i {
    margin-right: var(--md-spacing-xs);
}

.link-card-actions {
    display: flex;
    gap: var(--md-spacing-sm);
    padding: var(--md-spacing-md) var(--md-spacing-lg);
    background: var(--md-grey-50);
    border-top: 1px solid var(--md-grey-200);
}

.link-card-actions .btn {
    flex: 1;
}

/* ==================== BUTTONS ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--md-spacing-sm);
    padding: var(--md-spacing-sm) var(--md-spacing-lg);
    border: none;
    border-radius: var(--md-radius-sm);
    font-family: var(--md-font-family);
    font-size: var(--md-font-size-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: all var(--md-transition-fast);
    text-decoration: none;
}

.btn:hover {
    text-decoration: none;
    transform: translateY(-1px);
}

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

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

.btn-primary:hover {
    background: var(--md-primary-hover);
    color: var(--md-white);
    box-shadow: var(--md-shadow-2);
}

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

.btn-secondary:hover {
    background: var(--md-secondary-dark);
    color: var(--md-white);
}

.btn-outline {
    background: transparent;
    color: var(--md-primary);
    border: 2px solid var(--md-primary);
}

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

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

.btn-success:hover {
    background: #43A047;
    color: var(--md-white);
}

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

.btn-danger:hover {
    background: #E53935;
    color: var(--md-white);
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    /* border-radius: var(--md-radius-full); */
}

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

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

.btn-block {
    width: 100%;
}

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

.md-input-group {
    position: relative;
    margin-bottom: var(--md-spacing-lg);
}

.md-input {
    width: 100%;
    padding: var(--md-spacing-sm);
    border: 2px solid var(--md-grey-300);
    border-radius: var(--md-radius-sm);
    font-family: var(--md-font-family);
    font-size: var(--md-font-size-base);
    transition: all var(--md-transition-fast);
    background: var(--md-white);
}

.md-input:focus {
    outline: none;
    border-color: var(--md-primary);
    box-shadow: 0 0 0 3px rgba(33, 150, 243, 0.1);
}

.md-input-label {
    display: block;
    margin-bottom: var(--md-spacing-sm);
    font-weight: 500;
    color: var(--md-grey-700);
}

.md-input-helper {
    display: block;
    margin-top: var(--md-spacing-xs);
    font-size: var(--md-font-size-xs);
    color: var(--md-grey-500);
}

.md-select {
    width: 100%;
    padding: var(--md-spacing-md);
    border: 2px solid var(--md-grey-300);
    border-radius: var(--md-radius-sm);
    font-family: var(--md-font-family);
    font-size: var(--md-font-size-base);
    background: var(--md-white);
    cursor: pointer;
    transition: all var(--md-transition-fast);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='%23757575'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 40px;
}

.md-select:focus {
    outline: none;
    border-color: var(--md-primary);
    box-shadow: 0 0 0 3px rgba(33, 150, 243, 0.1);
}

.filter-select {
    width: auto;
    min-width: 160px;
    padding-top: var(--md-spacing-sm);
    padding-bottom: var(--md-spacing-sm);
}

.md-textarea {
    width: 100%;
    min-height: 120px;
    padding: var(--md-spacing-md);
    border: 2px solid var(--md-grey-300);
    border-radius: var(--md-radius-sm);
    font-family: var(--md-font-family);
    font-size: var(--md-font-size-base);
    resize: vertical;
    transition: all var(--md-transition-fast);
}

.md-textarea:focus {
    outline: none;
    border-color: var(--md-primary);
    box-shadow: 0 0 0 3px rgba(33, 150, 243, 0.1);
}

.md-checkbox-group,
.md-radio-group {
    display: flex;
    align-items: center;
    gap: var(--md-spacing-sm);
    margin-bottom: var(--md-spacing-md);
}

.md-checkbox,
.md-radio {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

/* ==================== ALERTS ==================== */
.alert {
    padding: var(--md-spacing-md) var(--md-spacing-lg);
    border-radius: var(--md-radius-sm);
    margin-bottom: var(--md-spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--md-spacing-md);
}

.alert i {
    font-size: var(--md-font-size-lg);
}

.alert-success {
    background: var(--md-success-light);
    color: #2E7D32;
    border-left: 4px solid var(--md-success);
}

.alert-error {
    background: var(--md-error-light);
    color: #C62828;
    border-left: 4px solid var(--md-error);
}

.alert-warning {
    background: var(--md-warning-light);
    color: #E65100;
    border-left: 4px solid var(--md-warning);
}

.alert-info {
    background: var(--md-info-light);
    color: #00838F;
    border-left: 4px solid var(--md-info);
}

/* ==================== MODAL ==================== */
.md-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: var(--md-z-modal-backdrop);
    display: none;
    justify-content: center;
    align-items: center;
    padding: var(--md-spacing-lg);
    opacity: 0;
    transition: opacity var(--md-transition-normal);
}

.md-modal-overlay.active {
    display: flex;
    opacity: 1;
}

.md-modal {
    background: var(--md-white);
    border-radius: var(--md-radius-lg);
    box-shadow: var(--md-shadow-5);
    width: 100%;
    max-width: 800px;
    max-height: 90vh;
    overflow: hidden;
    transform: scale(0.9);
    transition: transform var(--md-transition-normal);
}

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

.md-modal-header {
    padding: var(--md-spacing-lg);
    background: var(--md-grey-100);
    border-bottom: 1px solid var(--md-grey-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.md-modal-title {
    font-size: var(--md-font-size-xl);
    font-weight: 500;
    margin: 0;
}

.md-modal-close {
    background: none;
    border: none;
    font-size: var(--md-font-size-2xl);
    cursor: pointer;
    color: var(--md-grey-600);
    width: 40px;
    height: 40px;
    border-radius: var(--md-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--md-transition-fast);
}

.md-modal-close:hover {
    background: var(--md-grey-200);
    color: var(--md-grey-900);
}

.md-modal-body {
    padding: var(--md-spacing-lg);
    max-height: 70vh;
    overflow-y: auto;
}

.md-modal-footer {
    padding: var(--md-spacing-lg);
    background: var(--md-grey-50);
    border-top: 1px solid var(--md-grey-200);
    display: flex;
    justify-content: flex-end;
    gap: var(--md-spacing-md);
}

/* Video Container for Modal */
.video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    background: var(--md-black);
    border-radius: var(--md-radius-md);
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.website-container {
    width: 100%;
    height: 500px;
    border: none;
    border-radius: var(--md-radius-md);
    background: var(--md-white);
}

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

.auth-card {
    background: var(--md-white);
    border-radius: var(--md-radius-lg);
    box-shadow: var(--md-shadow-4);
    width: 100%;
    max-width: 420px;
    padding: var(--md-spacing-2xl);
}

.auth-header {
    text-align: center;
    margin-bottom: var(--md-spacing-xl);
}

.auth-logo {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--md-primary), var(--md-secondary));
    border-radius: var(--md-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--md-spacing-lg);
    box-shadow: var(--md-shadow-2);
}

.auth-logo i {
    font-size: 2.5rem;
    color: var(--md-white);
}

.auth-title {
    font-size: var(--md-font-size-2xl);
    margin-bottom: var(--md-spacing-sm);
}

.auth-subtitle {
    color: var(--md-grey-600);
    font-size: var(--md-font-size-sm);
}

.auth-footer {
    text-align: center;
    margin-top: var(--md-spacing-lg);
    padding-top: var(--md-spacing-lg);
    border-top: 1px solid var(--md-grey-200);
    font-size: var(--md-font-size-sm);
    color: var(--md-grey-600);
}

/* ==================== BADGES ==================== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--md-spacing-xs) var(--md-spacing-sm);
    border-radius: var(--md-radius-sm);
    font-size: var(--md-font-size-xs);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-primary {
    background: var(--md-primary-light);
    color: var(--md-primary-dark);
}

.badge-success {
    background: var(--md-success-light);
    color: #2E7D32;
}

.badge-warning {
    background: var(--md-warning-light);
    color: #E65100;
}

.badge-outline {
    background: var(--md-grey-100);
    color: var(--md-grey-700);
    border: 1px solid var(--md-grey-300);
}

.badge i {
    margin-right: 4px;
}

.text-primary {
    color: var(--md-primary);
}

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

.text-muted {
    color: var(--md-grey-600);
}

.flex-1 {
    flex: 1;
}

.inline-form {
    display: flex;
    align-items: flex-end;
    gap: var(--md-spacing-md);
}

.table-responsive {
    width: 100%;
    overflow-x: auto;
}

.md-table {
    width: 100%;
    border-collapse: collapse;
}

.md-table th,
.md-table td {
    padding: var(--md-spacing-md);
    border-bottom: 1px solid var(--md-grey-200);
    vertical-align: middle;
}

.md-table th {
    color: var(--md-grey-700);
    font-weight: 500;
    background: var(--md-grey-50);
    text-align: left;
}

.md-table th.text-right,
.md-table td.text-right {
    text-align: right;
}

.empty-state.compact {
    padding: var(--md-spacing-xl);
}

.badge-danger {
    background: var(--md-error-light);
    color: #C62828;
}

/* ==================== TOOLBAR ==================== */
.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--md-spacing-xl);
    flex-wrap: wrap;
    gap: var(--md-spacing-md);
}

.toolbar-left,
.toolbar-right {
    display: flex;
    align-items: center;
    gap: var(--md-spacing-md);
}

.toolbar-left-below {
    display: flex;
    align-items: center;
    flex: 1 1 100%;
    flex-wrap: wrap;
    gap: var(--md-spacing-md);
    max-width: 100%;
    min-width: 0;
}

.toolbar-left-below > * {
    flex: 0 1 auto;
    max-width: 100%;
    min-width: 0;
}


.search-box {
    position: relative;
    flex: 1 1 260px;
    min-width: 0;
}

.search-box input {
    padding-left: 40px;
    width: 100%;
    min-width: 0;
}

.search-box i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--md-grey-400);
}

.filter-summary {
    color: var(--md-grey-600);
    font-size: var(--md-font-size-sm);
    margin-top: calc(var(--md-spacing-lg) * -1);
    margin-bottom: var(--md-spacing-lg);
}

.sortable-links .link-card {
    cursor: grab;
}

.sortable-links .link-card.dragging {
    opacity: 0.65;
    cursor: grabbing;
    transform: scale(0.98);
    border: 2px dashed var(--md-primary);
}

.drag-handle {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: var(--md-radius-full);
    background: var(--md-grey-100);
    color: var(--md-grey-600);
    cursor: grab;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all var(--md-transition-fast);
}

.drag-handle:hover {
    background: var(--md-primary-light);
    color: var(--md-primary-dark);
}

.align-center {
    align-items: center;
}

/* ==================== USER MENU ==================== */
.user-menu {
    display: flex;
    align-items: center;
    gap: var(--md-spacing-md);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--md-radius-full);
    background: linear-gradient(135deg, var(--md-primary), var(--md-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--md-white);
    font-weight: 500;
    font-size: var(--md-font-size-lg);
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-weight: 500;
    color: var(--md-grey-900);
    font-size: var(--md-font-size-sm);
}

.user-role {
    font-size: var(--md-font-size-xs);
    color: var(--md-grey-500);
}

/* ==================== TOAST NOTIFICATIONS ==================== */
.toast-container {
    position: fixed;
    top: var(--md-spacing-lg);
    right: var(--md-spacing-lg);
    z-index: var(--md-z-tooltip);
    display: flex;
    flex-direction: column;
    gap: var(--md-spacing-sm);
}

.toast {
    background: var(--md-white);
    border-radius: var(--md-radius-md);
    box-shadow: var(--md-shadow-3);
    padding: var(--md-spacing-md) var(--md-spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--md-spacing-md);
    min-width: 300px;
    animation: slideIn 0.3s ease forwards;
}

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

.toast-icon {
    width: 24px;
    height: 24px;
    border-radius: var(--md-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--md-white);
    font-size: var(--md-font-size-sm);
}

.toast.success .toast-icon { background: var(--md-success); }
.toast.error .toast-icon { background: var(--md-error); }
.toast.warning .toast-icon { background: var(--md-warning); }
.toast.info .toast-icon { background: var(--md-info); }

/* ==================== EMPTY STATE ==================== */
.empty-state {
    text-align: center;
    padding: var(--md-spacing-2xl);
    color: var(--md-grey-500);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: var(--md-spacing-lg);
    color: var(--md-grey-300);
}

.empty-state-title {
    font-size: var(--md-font-size-xl);
    margin-bottom: var(--md-spacing-sm);
    color: var(--md-grey-700);
}

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

/* ==================== UTILITIES ==================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--md-primary); }
.text-secondary { color: var(--md-secondary); }
.text-success { color: var(--md-success); }
.text-danger { color: var(--md-error); }
.text-warning { color: var(--md-warning); }
.text-muted { color: var(--md-grey-500); }

.bg-primary { background-color: var(--md-primary); color: var(--md-white); }
.bg-secondary { background-color: var(--md-secondary); color: var(--md-white); }
.bg-success { background-color: var(--md-success); color: var(--md-white); }
.bg-danger { background-color: var(--md-error); color: var(--md-white); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--md-spacing-xs); }
.mt-2 { margin-top: var(--md-spacing-sm); }
.mt-3 { margin-top: var(--md-spacing-md); }
.mt-4 { margin-top: var(--md-spacing-lg); }
.mt-5 { margin-top: var(--md-spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--md-spacing-xs); }
.mb-2 { margin-bottom: var(--md-spacing-sm); }
.mb-3 { margin-bottom: var(--md-spacing-md); }
.mb-4 { margin-bottom: var(--md-spacing-lg); }
.mb-5 { margin-bottom: var(--md-spacing-xl); }

.d-flex { display: flex; }
.d-block { display: block; }
.d-none { display: none; }
.d-grid { display: grid; }
.d-flex { display: flex; }

.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }

.gap-1 { gap: var(--md-spacing-xs); }
.gap-2 { gap: var(--md-spacing-sm); }
.gap-3 { gap: var(--md-spacing-md); }
.gap-4 { gap: var(--md-spacing-lg); }

.w-100 { width: 100%; }

/* ==================== RESPONSIVE ==================== */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .links-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
}

@media (max-width: 768px) {
    .top-bar {
        padding: var(--md-spacing-md);
    }
    
    .page-content {
        padding: var(--md-spacing-md);
    }
    
    .links-grid {
        grid-template-columns: 1fr;
    }
    
    .toolbar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .toolbar-left-below,
    .toolbar-left,
    .toolbar-right {
        width: 100%;
    }

    .toolbar-left-below {
        align-items: stretch;
    }

    .toolbar-left-below > *,
    .toolbar-left-below .filter-select,
    .toolbar-left-below .btn {
        flex: 1 1 100%;
        width: 100%;
    }

    .search-box {
        flex-basis: 100%;
        width: 100%;
    }
    
    .search-box input {
        min-width: 0;
    }
    
    .user-info {
        display: none;
    }
    
    .auth-card {
        padding: var(--md-spacing-lg);
    }
    
    .md-modal {
        max-width: 100%;
        max-height: 100%;
        border-radius: 0;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }
    
    .container {
        padding: 0 var(--md-spacing-sm);
    }
    
    .md-card {
        padding: var(--md-spacing-md);
    }
    
    .link-card-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }

    .toolbar-left-below {
        flex-direction: column;
    }

}

/* ==================== DOCUMENTIFY-INSPIRED UI REFRESH ==================== */
body {
    background: #ffffff;
    color: #1f2937;
    letter-spacing: -0.01em;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    color: #111827;
    letter-spacing: -0.035em;
}

p, li, .md-card-body, .link-card-description, .meta-item {
    color: #4b5563;
}

.sidebar {
    width: 248px;
    background: #ffffff;
    border-right: 1px solid #edf0f3;
    box-shadow: none;
}

.sidebar-header {
    min-height: 58px;
    padding: 0 22px;
    display: flex;
    align-items: center;
    background: #ffffff;
    color: #111827;
    border-bottom: 1px solid #edf0f3;
}

.sidebar-header h3 {
    color: #111827;
    font-size: 1rem;
    font-weight: 800;
    letter-spacing: -0.04em;
}

.sidebar-header h3 i {
    width: 25px;
    height: 25px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-right: 7px;
    border-radius: 7px;
    background: var(--md-primary-light);
    color: var(--md-primary);
    font-size: 0.8rem;
}

.sidebar-nav {
    padding: 16px 14px;
}

.sidebar-nav::before,
.sidebar-nav::after {
    display: block;
    margin: 14px 2px 8px;
    color: #111827;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.sidebar-nav::before { content: "Navigation"; }
.sidebar-nav::after { content: "Account"; }

.nav-item {
    min-height: 34px;
    margin-bottom: 4px;
    padding: 8px 10px;
    border-left: 0;
    border-radius: 8px;
    color: #4b5563;
    font-size: 0.8125rem;
    font-weight: 500;
}

.nav-item i {
    width: 18px;
    margin-right: 9px;
    color: #6b7280;
    font-size: 0.78rem;
}

.nav-item:hover,
.nav-item.active {
    background: #fff7ed;
    color: var(--md-primary-dark);
    border-left-color: transparent;
}

.nav-item:hover i,
.nav-item.active i {
    color: var(--md-primary);
}

.main-content {
    margin-left: 248px;
    background: #ffffff;
}

.top-bar {
    min-height: 58px;
    padding: 0 28px;
    background: rgba(255, 255, 255, 0.92);
    border-bottom: 1px solid #edf0f3;
    box-shadow: none;
    backdrop-filter: blur(12px);
}

.top-bar h4 {
    font-size: 0.95rem;
    font-weight: 800;
    letter-spacing: -0.035em;
}

.page-content {
    max-width: 1180px;
    margin: 0 auto;
    padding: 34px 36px 56px;
}

.toolbar {
    align-items: flex-start;
    margin-bottom: 16px;
    padding-bottom: 18px;
    border-bottom: 1px solid #f1f3f5;
}

.toolbar-left-below {
    gap: 10px;
}

.search-box {
    flex-basis: 340px;
    max-width: 420px;
}

.search-box i {
    left: 13px;
    color: #9ca3af;
    font-size: 0.78rem;
}

.md-input,
.md-select,
.md-textarea {
    border: 1px solid #e5e7eb;
    border-radius: 9px;
    background-color: #ffffff;
    color: #111827;
    font-size: 0.8125rem;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.02);
}

.md-input,
.md-select {
    min-height: 36px;
    padding: 8px 12px;
}

.md-textarea {
    padding: 12px 14px;
}

.search-box input {
    padding-left: 35px;
}

.md-input:focus,
.md-select:focus,
.md-textarea:focus {
    border-color: #ff9a57;
    box-shadow: 0 0 0 4px rgba(255, 107, 26, 0.10);
}

.md-input-label {
    margin-bottom: 7px;
    color: #111827;
    font-size: 0.78rem;
    font-weight: 700;
}

.md-input-helper {
    color: #8a94a6;
}

.filter-select {
    min-width: 132px;
    padding-top: 8px;
    padding-bottom: 8px;
}

.btn {
    min-height: 34px;
    padding: 8px 14px;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: -0.005em;
    text-transform: none;
    box-shadow: none;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    background: var(--md-primary);
    color: #ffffff;
    border: 1px solid var(--md-primary);
}

.btn-primary:hover {
    background: var(--md-primary-hover);
    border-color: var(--md-primary-hover);
    box-shadow: 0 10px 24px rgba(255, 107, 26, 0.18);
}

.btn-outline {
    background: #ffffff;
    color: #374151;
    border: 1px solid #e5e7eb;
}

.btn-outline:hover {
    background: #fff7ed;
    color: var(--md-primary-dark);
    border-color: #fed7aa;
}

.btn-danger {
    background: #fff1f2;
    color: #be123c;
    border: 1px solid #ffe4e6;
}

.btn-danger:hover {
    background: #be123c;
    border-color: #be123c;
}

.btn-icon {
    width: 34px;
    height: 34px;
}

.btn-lg {
    min-height: 42px;
    padding: 10px 18px;
}

.md-card,
.link-card,
.auth-card,
.md-modal,
.empty-state {
    border: 1px solid #edf0f3;
    box-shadow: none;
}

.md-card,
.link-card {
    border-radius: 12px;
    background: #ffffff;
}

.md-card {
    padding: 22px;
}

.md-card:hover,
.link-card:hover {
    border-color: #fed7aa;
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.06);
}

.md-card-header,
.link-card-header,
.link-card-actions,
.md-modal-header,
.md-modal-footer {
    background: #ffffff;
    border-color: #edf0f3;
}

.md-card-title {
    font-size: 1rem;
    font-weight: 800;
}

.md-card-title i,
.empty-state-icon i,
.text-primary {
    color: var(--md-primary);
}

.links-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 18px;
}

.link-card {
    overflow: hidden;
}

.link-card:hover {
    transform: translateY(-3px);
}

.link-card-header {
    padding: 13px 15px;
}

.link-card-body {
    padding: 16px;
}

.link-card-actions {
    padding: 13px 15px;
}

.link-card-title {
    color: #111827;
    font-size: 0.98rem;
    font-weight: 800;
    letter-spacing: -0.025em;
}

.link-card-description {
    font-size: 0.8rem;
    line-height: 1.55;
}

.meta-item {
    color: #7b8494;
    font-size: 0.72rem;
}

.link-type-badge,
.badge {
    min-height: 24px;
    padding: 4px 8px;
    border-radius: 999px;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0;
    text-transform: none;
}

.link-type-badge.youtube {
    background: #fff1f2;
    color: #e11d48;
}

.link-type-badge.website,
.badge-primary {
    background: #fff7ed;
    color: var(--md-primary-dark);
}

.badge-success {
    background: #ecfdf5;
    color: #047857;
}

.badge-warning {
    background: #fffbeb;
    color: #b45309;
}

.badge-outline {
    background: #ffffff;
    color: #6b7280;
    border-color: #e5e7eb;
}

.badge-danger {
    background: #fff1f2;
    color: #be123c;
}

.filter-summary {
    margin-top: 0;
    margin-bottom: 18px;
    color: #7b8494;
    font-size: 0.76rem;
}

.alert {
    border: 1px solid transparent;
    border-left-width: 3px;
    border-radius: 10px;
    font-size: 0.8125rem;
}

.alert-info {
    background: #eff6ff;
    color: #1d4ed8;
    border-color: #bfdbfe;
}

.alert-success {
    background: #ecfdf5;
    color: #047857;
    border-color: #a7f3d0;
}

.alert-error {
    background: #fff1f2;
    color: #be123c;
    border-color: #fecdd3;
}

.md-table {
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.8125rem;
}

.md-table th {
    background: #fafafa;
    color: #6b7280;
    font-size: 0.72rem;
    font-weight: 800;
    text-transform: uppercase;
}

.md-table th,
.md-table td {
    border-bottom-color: #edf0f3;
}

.drag-handle {
    width: 28px;
    height: 28px;
    background: #fafafa;
    color: #9ca3af;
}

.drag-handle:hover {
    background: #fff7ed;
    color: var(--md-primary);
}

.user-avatar {
    width: 34px;
    height: 34px;
    background: #111827;
    font-size: 0.86rem;
    font-weight: 800;
}

.user-name {
    font-size: 0.78rem;
    font-weight: 700;
}

.user-role {
    font-size: 0.68rem;
}

.auth-page {
    background:
        radial-gradient(circle at top left, rgba(255, 107, 26, 0.18), transparent 30%),
        linear-gradient(180deg, #ffffff 0%, #fff7ed 100%);
}

.auth-card {
    max-width: 440px;
    border-radius: 18px;
    box-shadow: 0 24px 70px rgba(15, 23, 42, 0.10);
}

.auth-logo {
    width: 58px;
    height: 58px;
    border-radius: 14px;
    background: var(--md-primary-light);
    box-shadow: none;
}

.auth-logo i {
    color: var(--md-primary);
    font-size: 1.55rem;
}

.auth-title {
    font-size: 1.55rem;
    font-weight: 800;
}

.auth-subtitle {
    color: #6b7280;
}

.md-modal-overlay {
    background: rgba(17, 24, 39, 0.52);
    backdrop-filter: blur(4px);
}

.md-modal {
    border-radius: 16px;
}

.toast {
    border: 1px solid #edf0f3;
    border-radius: 12px;
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.10);
    font-size: 0.8125rem;
}

@media (max-width: 1024px) {
    .main-content {
        margin-left: 0;
    }

    .sidebar {
        box-shadow: 0 20px 60px rgba(15, 23, 42, 0.12);
    }
}

@media (max-width: 768px) {
    .top-bar {
        min-height: auto;
        padding: 12px 16px;
        gap: 10px;
        align-items: flex-start;
    }

    .top-bar > .toolbar-left {
        display: grid;
        grid-template-columns: 36px 1fr;
        width: 100%;
        align-items: center;
    }

    .top-bar > .toolbar-right {
        width: 100%;
        padding-left: 0;
    }

    .top-bar .user-menu {
        display: grid;
        grid-template-columns: 36px minmax(128px, auto);
        gap: 10px;
        justify-content: flex-start;
        width: 100%;
    }

    .top-bar .user-avatar {
        grid-column: 1;
        grid-row: 1;
    }

    .top-bar .user-menu .btn {
        grid-column: 2;
        grid-row: 1;
        width: 100%;
        max-width: 128px;
    }

    .toolbar-left,
    .toolbar-right,
    .user-menu {
        gap: 8px;
        flex-wrap: wrap;
    }

    .page-content {
        padding: 22px 16px 40px;
    }

    .page-content > .alert:first-child {
        margin-top: 0;
    }

    .toolbar {
        gap: 12px;
        margin-bottom: 12px;
        padding-bottom: 14px;
    }

    .toolbar-left-below {
        display: grid;
        grid-template-columns: 1fr;
        gap: 10px;
        width: 100%;
    }

    .toolbar-left-below > *,
    .toolbar-left-below .filter-select,
    .toolbar-left-below .btn,
    .toolbar-right .btn {
        width: 100%;
        max-width: none;
    }

    .search-box {
        flex-basis: auto;
        max-width: none;
        width: 100%;
    }

    .search-box i {
        top: 18px;
        transform: none;
        pointer-events: none;
    }

    .md-input,
    .md-select {
        min-height: 42px;
        font-size: 0.86rem;
    }

    .filter-summary {
        margin-bottom: 14px;
        padding-bottom: 0;
    }

    .md-card {
        padding: 18px;
    }

    .inline-form,
    .d-flex.justify-between {
        flex-direction: column;
        align-items: stretch;
    }

    .links-grid {
        gap: 14px;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 15px;
    }

    .main-wrapper,
    .main-content {
        min-width: 0;
        width: 100%;
    }

    .sidebar {
        width: min(82vw, 280px);
    }

    .top-bar {
        /* flex-direction: column; */
        padding: 10px 13px 12px;
        border-bottom-color: #f1f3f5;
    }

    .top-bar h4 {
        font-size: 0.94rem;
    }

    .page-content {
        padding: 20px 13px 34px;
    }

    .alert {
        align-items: center;
        padding: 13px 14px;
        border-radius: 9px;
    }

    .toolbar {
        border-bottom-color: #f5f5f5;
    }

    .toolbar-left-below {
        gap: 10px;
    }

    .toolbar-right {
        width: 100%;
    }

    .toolbar-right .btn,
    .link-card-actions .btn,
    .md-modal-footer .btn,
    .auth-card .btn {
        width: 100%;
    }

    .md-modal-footer {
        flex-direction: column-reverse;
    }

    .toast-container {
        left: 12px;
        right: 12px;
    }

    .toast {
        min-width: 0;
    }
}

@media (max-width: 380px) {
    .top-bar .user-menu {
        grid-template-columns: 36px 1fr;
    }

    .top-bar .user-menu .btn {
        max-width: none;
    }
}

/* Admin pages */
.admin-user-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1rem;
}

.admin-user-card .md-card-header {
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.reset-password-box,
.settings-section {
    background: rgba(249, 250, 251, 0.9);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1rem;
}

.settings-section {
    margin: 1rem 0;
}

.settings-section h4,
.reset-password-box h4 {
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-size: 1rem;
}

.toggle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.875rem 0;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
}

.toggle-row:last-child {
    border-bottom: 0;
}

.toggle-row span {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.toggle-row small,
.content-text {
    color: var(--text-secondary);
    line-height: 1.7;
}

.toggle-row input[type="checkbox"] {
    width: 42px;
    height: 22px;
    flex: 0 0 auto;
    accent-color: var(--primary-color);
}

.md-textarea {
    min-height: 220px;
    resize: vertical;
}

.settings-card {
    max-width: 920px;
}

@media (max-width: 640px) {
    .admin-user-grid,
    .form-grid {
        grid-template-columns: 1fr;
    }

    .toggle-row {
        align-items: flex-start;
    }
}

/* View toggle buttons */
.btn-group {
    display: inline-flex;
    gap: 0;
}
.btn-group .btn {
    border-radius: 0;
    margin-left: -1px;
}
.btn-group .btn:first-child {
    border-top-left-radius: 4px;
    border-bottom-left-radius: 4px;
    margin-left: 0;
}
.btn-group .btn:last-child {
    border-top-right-radius: 4px;
    border-bottom-right-radius: 4px;
}
.view-toggle-btn.active {
    z-index: 1;
}

/* List view: stack cards as full-width rows, hide description */
.links-grid.view-list {
    display: flex;
    flex-direction: column;
    grid-template-columns: none;
    gap: 8px;
}
.links-grid.view-list .link-card {
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-rows: auto auto;
    gap: 8px 16px;
    align-items: center;
    padding: 12px 16px;
}
.links-grid.view-list .link-card-description {
    display: none;
}
.links-grid.view-list .link-card-header {
    grid-column: 1 / -1;
}
.links-grid.view-list .link-card-body {
    grid-column: 1;
    padding: 0;
}
.links-grid.view-list .link-card-actions {
    grid-column: 2;
    grid-row: 2;
    margin: 0;
    padding: 0;
    border-top: 0;
    flex-direction: row;
}
.links-grid.view-list .link-card-title {
    margin: 0 0 4px 0;
    font-size: 1rem;
}
.links-grid.view-list .link-card-meta {
    margin-top: 2px;
}

/* Pagination */
.pagination {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    justify-content: center;
    align-items: center;
    margin: 24px 0 8px;
}
.pagination .pagination-btn {
    min-width: 36px;
    padding: 6px 10px;
}
.pagination .pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}
.pagination .pagination-ellipsis {
    padding: 0 6px;
    color: var(--md-grey-600, #6b7280);
}

/* ========================
   QUICK NOTES STYLES
   ======================== */

.quick-notes-container {
    max-width: 1400px;
    margin: 0 auto;
}

.notes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.25rem;
}

.note-card {
    background: var(--card-bg, #fff);
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: 8px;
    overflow: hidden;
    transition: box-shadow 0.2s ease, transform 0.2s ease;
    display: flex;
    flex-direction: column;
}

.note-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.note-card-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color, #e5e7eb);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 0.75rem;
}

.note-card-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary, #1f2937);
    margin: 0;
    word-break: break-word;
}

.note-card-actions {
    display: flex;
    gap: 0.25rem;
    flex-shrink: 0;
}

.note-card-actions .btn-icon {
    width: 30px;
    height: 30px;
    border-radius: 4px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.15s ease;
}

.note-card-actions .btn-icon.btn-edit {
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
    border: none;
}

.note-card-actions .btn-icon.btn-edit:hover {
    background: rgba(59, 130, 246, 0.2);
}

.note-card-actions .btn-icon.btn-delete {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border: none;
}

.note-card-actions .btn-icon.btn-delete:hover {
    background: rgba(239, 68, 68, 0.2);
}

.note-card-body {
    padding: 1rem 1.25rem;
    flex: 1;
    overflow: hidden;
}

.note-card-content {
    color: var(--text-secondary, #4b5563);
    font-size: 0.9rem;
    line-height: 1.7;
    max-height: 200px;
    overflow: hidden;
    position: relative;
}

.note-card-content::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40px;
    background: linear-gradient(transparent, var(--card-bg, #fff));
}

.note-card-content.expanded {
    max-height: none;
}

.note-card-content.expanded::after {
    display: none;
}

.note-card-content b, .note-card-content strong {
    font-weight: 700;
}

.note-card-content i, .note-card-content em {
    font-style: italic;
}

.note-card-content u {
    text-decoration: underline;
}

.note-card-content s, .note-card-content strike {
    text-decoration: line-through;
}

.note-card-content mark {
    background: #fef08a;
    padding: 0 2px;
}

.note-card-content code {
    background: #f3f4f6;
    padding: 2px 4px;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
    font-size: 0.85em;
}

.note-card-content pre {
    background: #1f2937;
    color: #e5e7eb;
    padding: 0.75rem;
    border-radius: 4px;
    overflow-x: auto;
    font-size: 0.85rem;
}

.note-card-content ul, .note-card-content ol {
    margin: 0.5rem 0;
    padding-left: 1.5rem;
}

.note-card-content blockquote {
    border-left: 3px solid var(--primary-color, #3b82f6);
    margin: 0.5rem 0;
    padding-left: 0.75rem;
    color: var(--text-secondary, #4b5563);
    font-style: italic;
}

.note-card-footer {
    padding: 0.75rem 1.25rem;
    border-top: 1px solid var(--border-color, #e5e7eb);
    background: rgba(0, 0, 0, 0.02);
}

.note-files-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.note-file-item {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.25rem 0.625rem;
    background: rgba(59, 130, 246, 0.08);
    border-radius: 4px;
    font-size: 0.8rem;
    color: var(--text-secondary, #4b5563);
    text-decoration: none;
    transition: all 0.15s ease;
}

.note-file-item:hover {
    background: rgba(59, 130, 246, 0.15);
    color: var(--primary-color, #3b82f6);
}

.note-file-item i {
    font-size: 0.85rem;
}

.note-file-item.file-image {
    background: rgba(16, 185, 129, 0.08);
}

.note-file-item.file-image:hover {
    background: rgba(16, 185, 129, 0.15);
    color: #10b981;
}

.note-file-item.file-pdf {
    background: rgba(239, 68, 68, 0.08);
}

.note-file-item.file-pdf:hover {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
}

.note-file-item.file-audio {
    background: rgba(168, 85, 247, 0.08);
}

.note-file-item.file-audio:hover {
    background: rgba(168, 85, 247, 0.15);
    color: #a855f7;
}

.note-file-item.file-doc {
    background: rgba(59, 130, 246, 0.08);
}

.note-file-item.file-doc:hover {
    background: rgba(59, 130, 246, 0.15);
    color: #3b82f6;
}

.note-date {
    font-size: 0.75rem;
    color: var(--text-muted, #9ca3af);
}

.note-expanded-indicator {
    font-size: 0.75rem;
    color: var(--primary-color, #3b82f6);
    cursor: pointer;
    text-align: center;
    padding: 0.25rem;
}

.note-expanded-indicator:hover {
    text-decoration: underline;
}

/* Empty State */
.notes-empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary, #4b5563);
}

.notes-empty-state i {
    font-size: 4rem;
    color: var(--text-muted, #d1d5db);
    margin-bottom: 1rem;
}

.notes-empty-state h3 {
    margin: 0 0 0.5rem;
    color: var(--text-primary, #1f2937);
}

.notes-empty-state p {
    margin: 0 0 1.5rem;
}

/* Note Editor Styles */
.note-editor-container {
    max-width: 900px;
    margin: 0 auto;
}

.note-editor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.note-editor-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary, #1f2937);
    margin: 0;
}

.quick-notes-btn-group {
    display: flex;
    gap: 0.5rem;
}

.note-form-card {
    background: var(--card-bg, #fff);
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: 8px;
    padding: 1.5rem;
}

.note-form-group {
    margin-bottom: 1.5rem;
}

.note-form-group label {
    display: block;
    font-weight: 500;
    color: var(--text-primary, #1f2937);
    margin-bottom: 0.5rem;
}

.note-form-group input[type="text"],
.note-form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.note-form-group input[type="text"]:focus,
.note-form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color, #3b82f6);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.note-form-group textarea {
    min-height: 300px;
    resize: vertical;
    font-family: inherit;
    line-height: 1.6;
}

/* Rich Text Toolbar */
.rich-text-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    padding: 0.5rem;
    background: #f9fafb;
    border: 1px solid var(--border-color, #e5e7eb);
    border-bottom: none;
    border-radius: 6px 6px 0 0;
}

.rich-text-toolbar button {
    width: 34px;
    height: 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid transparent;
    border-radius: 4px;
    background: transparent;
    color: var(--text-secondary, #4b5563);
    cursor: pointer;
    transition: all 0.15s ease;
    font-size: 0.9rem;
}

.rich-text-toolbar button:hover {
    background: #e5e7eb;
    color: var(--text-primary, #1f2937);
}

.rich-text-toolbar button.active {
    background: var(--primary-color, #3b82f6);
    color: white;
}

.rich-text-toolbar .toolbar-separator {
    width: 1px;
    height: 34px;
    background: var(--border-color, #e5e7eb);
    margin: 0 0.25rem;
}

.note-editor-wrapper textarea {
    border-radius: 0 0 6px 6px;
}

/* File Upload Styles */
.file-upload-area {
    border: 2px dashed var(--border-color, #e5e7eb);
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    background: #fafafa;
}

.file-upload-area:hover,
.file-upload-area.dragover {
    border-color: var(--primary-color, #3b82f6);
    background: rgba(59, 130, 246, 0.05);
}

.file-upload-area i {
    font-size: 2.5rem;
    color: var(--text-muted, #d1d5db);
    margin-bottom: 0.75rem;
}

.file-upload-area p {
    margin: 0;
    color: var(--text-secondary, #4b5563);
}

.file-upload-area small {
    color: var(--text-muted, #9ca3af);
}

.file-upload-area input[type="file"] {
    display: none;
}

/* Uploaded Files Preview */
.uploaded-files {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1rem;
}

.uploaded-file-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 0.875rem;
    background: var(--card-bg, #fff);
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: 6px;
    font-size: 0.85rem;
}

.uploaded-file-item i {
    color: var(--primary-color, #3b82f6);
    font-size: 1.1rem;
}

.uploaded-file-item .file-name {
    max-width: 150px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.uploaded-file-item .btn-remove {
    width: 22px;
    height: 22px;
    padding: 0;
    border: none;
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border-radius: 50%;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
}

.uploaded-file-item .btn-remove:hover {
    background: rgba(239, 68, 68, 0.2);
}

.uploaded-file-item .btn-remove.already-uploaded {
    background: rgba(239, 68, 68, 0.15);
    opacity: 0.7;
}

.note-form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color, #e5e7eb);
}

/* Image Preview Modal */
.image-preview-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    z-index: 9999;
    align-items: center;
    justify-content: center;
}

.image-preview-modal.active {
    display: flex;
}

.image-preview-modal img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    border-radius: 4px;
}

.image-preview-modal .close-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
    border: none;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-preview-modal .close-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Search and Filter */
.notes-filter-bar {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    align-items: center;
}

.notes-search {
    flex: 1;
    min-width: 200px;
    position: relative;
}

.notes-search input {
    width: 100%;
    padding: 0.625rem 0.875rem 0.625rem 2.5rem;
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: 6px;
    font-size: 0.9rem;
}

.notes-search i {
    position: absolute;
    left: 0.875rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted, #9ca3af);
}

@media (max-width: 640px) {
    .notes-grid {
        grid-template-columns: 1fr;
    }
    
    .note-editor-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .quick-notes-btn-group {
        width: 100%;
    }
    
    .quick-notes-btn-group .btn {
        flex: 1;
    }
    
    .rich-text-toolbar {
        overflow-x: auto;
    }
    
    .note-form-actions {
        flex-direction: column;
    }
    
    .note-form-actions .btn {
        width: 100%;
    }
}

/* ==================== QUICK NOTES STYLES ==================== */
.quick-note-form .md-input-group {
    margin-bottom: 1.25rem;
}

.note-editor {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    resize: vertical;
}

/* Editor Toolbar */
.editor-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    padding: 0.5rem;
    background: var(--md-grey-50, #fafafa);
    border: 1px solid var(--border-color, #e5e7eb);
    border-bottom: none;
    border-radius: 8px 8px 0 0;
}

.editor-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    padding: 0;
    border: 1px solid transparent;
    border-radius: 6px;
    background: transparent;
    color: var(--md-grey-700, #616161);
    cursor: pointer;
    transition: all 0.15s ease;
}

.editor-btn:hover {
    background: var(--md-primary-light, #fff3ea);
    color: var(--md-primary, #ff6b1a);
    border-color: var(--md-primary, #ff6b1a);
}

.editor-btn.active {
    background: var(--md-primary, #ff6b1a);
    color: white;
}

.editor-divider {
    width: 1px;
    height: 24px;
    background: var(--md-grey-300, #e0e0e0);
    margin: auto 0.25rem;
}

/* File Upload Styles */
.file-upload-wrapper {
    margin-top: 0.5rem;
}

.file-upload-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    border: 2px dashed var(--border-color, #e5e7eb);
    border-radius: 12px;
    background: var(--md-grey-50, #fafafa);
    cursor: pointer;
    transition: all 0.2s ease;
}

.file-upload-area:hover {
    border-color: var(--md-primary, #ff6b1a);
    background: var(--md-primary-light, #fff3ea);
}

.file-upload-area.dragover {
    border-color: var(--md-primary, #ff6b1a);
    background: var(--md-primary-light, #fff3ea);
    transform: scale(1.01);
}

.file-upload-area i {
    font-size: 2.5rem;
    color: var(--md-primary, #ff6b1a);
    margin-bottom: 0.75rem;
}

.file-upload-area p {
    margin: 0 0 0.25rem 0;
    font-size: 0.95rem;
    color: var(--text-color, #374151);
}

.file-upload-hint {
    font-size: 0.8rem;
    color: var(--text-muted, #9ca3af);
}

.file-input {
    display: none;
}

/* File List */
.file-list {
    margin-top: 1rem;
}

.file-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    background: var(--md-white, #fff);
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: 8px;
    transition: all 0.2s ease;
}

.file-item:hover {
    border-color: var(--md-primary, #ff6b1a);
    box-shadow: var(--md-shadow-1, 0 1px 2px rgba(15, 23, 42, 0.04));
}

.file-item.pending {
    opacity: 0.7;
}

.file-preview {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 8px;
    background: var(--md-grey-100, #f5f5f5);
    flex-shrink: 0;
}

.file-preview.image-preview img {
    width: 48px;
    height: 48px;
    object-fit: cover;
    border-radius: 8px;
}

.file-preview.doc-preview i {
    font-size: 1.5rem;
    color: var(--md-primary, #ff6b1a);
}

.file-preview.audio-preview i {
    font-size: 1.5rem;
    color: var(--md-primary, #ff6b1a);
}

.file-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.file-name {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-color, #374151);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-size {
    font-size: 0.8rem;
    color: var(--text-muted, #9ca3af);
}

.file-status {
    font-size: 0.75rem;
    color: var(--md-warning, #ff9800);
    font-weight: 500;
}

.file-delete-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    border: none;
    border-radius: 6px;
    background: transparent;
    color: var(--md-grey-500, #9e9e9e);
    cursor: pointer;
    transition: all 0.15s ease;
}

.file-delete-btn:hover {
    background: var(--md-error-light, #ffcdd2);
    color: var(--md-error, #f44336);
}

/* Current Files */
.current-files {
    margin-bottom: 1rem;
}

.current-files h5 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-color, #374151);
    margin-bottom: 0.75rem;
}

.file-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 0.75rem;
}

/* Quick Notes Grid */
.quick-notes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
}

.quick-note-card {
    background: var(--md-white, #fff);
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: 12px;
    padding: 1rem;
    transition: all 0.2s ease;
}

.quick-note-card:hover {
    border-color: var(--md-primary, #ff6b1a);
    box-shadow: var(--md-shadow-2, 0 8px 24px rgba(15, 23, 42, 0.06));
}

.quick-note-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.quick-note-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-color, #374151);
    margin: 0;
    line-height: 1.4;
}

.quick-note-actions {
    display: flex;
    gap: 0.375rem;
    flex-shrink: 0;
}

.quick-note-content {
    font-size: 0.875rem;
    color: var(--text-muted, #6b7280);
    line-height: 1.6;
    margin-bottom: 0.75rem;
    max-height: 120px;
    overflow: hidden;
}

.quick-note-content p {
    margin: 0 0 0.5rem 0;
}

.quick-note-content p:last-child {
    margin-bottom: 0;
}

.quick-note-content ul,
.quick-note-content ol {
    margin: 0.5rem 0;
    padding-left: 1.25rem;
}

.quick-note-content blockquote {
    border-left: 3px solid var(--md-primary, #ff6b1a);
    padding-left: 1rem;
    margin: 0.5rem 0;
    font-style: italic;
}

.quick-note-content h2 {
    font-size: 1.1rem;
    margin: 0.5rem 0;
}

.quick-note-content a {
    color: var(--md-primary, #ff6b1a);
}

.quick-note-content a:hover {
    text-decoration: underline;
}

.quick-note-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--text-muted, #9ca3af);
}

.quick-note-date,
.quick-note-updated {
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

/* Form Card */
.form-card {
    margin-bottom: 2rem;
}

/* Responsive */
@media (max-width: 768px) {
    .editor-toolbar {
        overflow-x: auto;
        flex-wrap: nowrap;
    }
    
    .editor-btn {
        width: 32px;
        height: 32px;
    }
    
    .file-grid {
        grid-template-columns: 1fr;
    }
    
    .quick-notes-grid {
        grid-template-columns: 1fr;
    }
    
    .quick-note-header {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .quick-note-actions {
        width: 100%;
    }
    
    .quick-note-actions .btn {
        flex: 1;
    }
}