/* Modern Note-Taking App with Task Management - Inspired by Dribbble Designs */

:root {
    /* Primary Brand Colors - Inspired by modern note-taking apps */
    --primary-color: #ff6b35;
    --primary-gradient: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
    --secondary-color: #6c757d;
    --accent-color: #4f46e5;

    /* Status Colors */
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #3b82f6;

    /* Neutral Colors */
    --light-color: #f8fafc;
    --lighter-color: #ffffff;
    --dark-color: #1e293b;
    --darker-color: #0f172a;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;

    /* Design System */
    --border-radius: 16px;
    --border-radius-sm: 8px;
    --border-radius-lg: 24px;
    --box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --box-shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --box-shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

    /* Typography */
    --font-family-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;

    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

body {
    font-family: var(--font-family-sans);
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    line-height: 1.6;
    color: var(--gray-800);
    margin: 0;
    padding: 0;
    min-height: 100vh;
}

/* Header Styles - Modern gradient design */
.app-header {
    background: var(--primary-gradient);
    color: white;
    padding: var(--spacing-6) 0;
    box-shadow: var(--box-shadow-lg);
    position: relative;
    overflow: visible;
}

.app-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="white" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.1"/><circle cx="50" cy="10" r="0.5" fill="white" opacity="0.1"/><circle cx="10" cy="60" r="0.5" fill="white" opacity="0.1"/><circle cx="90" cy="40" r="0.5" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    pointer-events: none;
}

.app-title {
    font-weight: 800;
    margin: 0;
    font-size: var(--font-size-3xl);
    letter-spacing: -0.025em;
    position: relative;
    z-index: 1;
    color: white;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.app-title i {
    margin-right: var(--spacing-3);
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.2));
    color: white;
}

.app-title .text-white {
    color: white !important;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

/* Navigation Styles - Modern tab design */
.nav-tabs {
    border-bottom: 2px solid var(--gray-200);
    margin-bottom: var(--spacing-8);
}

.nav-tabs .nav-link {
    border: none;
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
    font-weight: 600;
    font-size: var(--font-size-base);
    color: var(--gray-600);
    padding: var(--spacing-4) var(--spacing-6);
    margin-right: var(--spacing-2);
    transition: var(--transition-base);
    position: relative;
    background: transparent;
}

.nav-tabs .nav-link:hover {
    background: var(--gray-50);
    color: var(--gray-800);
    transform: translateY(-2px);
}

.nav-tabs .nav-link.active {
    background: var(--lighter-color);
    color: var(--primary-color);
    border-bottom: 3px solid var(--primary-color);
    box-shadow: var(--box-shadow);
}

.nav-tabs .nav-link i {
    margin-right: var(--spacing-2);
    font-size: var(--font-size-lg);
}

/* Card Styles - Modern card design inspired by Dribbble */
.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition-base);
    background: var(--lighter-color);
    overflow: hidden;
    position: relative;
}

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

.card-header {
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--lighter-color) 100%);
    border-bottom: 1px solid var(--gray-200);
    font-weight: 600;
    font-size: var(--font-size-lg);
    color: var(--gray-800);
    padding: var(--spacing-5) var(--spacing-6);
}

/* Enhanced card variants */
.card-modern {
    background: var(--lighter-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
    border: 1px solid var(--gray-100);
    transition: var(--transition-base);
}

.card-modern:hover {
    transform: translateY(-6px);
    box-shadow: var(--box-shadow-xl);
    border-color: var(--primary-color);
}

.card-gradient {
    background: linear-gradient(135deg, var(--lighter-color) 0%, var(--gray-50) 100%);
    border: 1px solid var(--gray-200);
}

.card-featured {
    background: var(--primary-gradient);
    color: white;
}

.card-featured .card-title,
.card-featured .card-text {
    color: white;
}

/* Button Styles - Modern button design */
.btn {
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: var(--font-size-sm);
    padding: var(--spacing-3) var(--spacing-5);
    transition: var(--transition-base);
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn i {
    margin-right: var(--spacing-2);
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(255, 107, 53, 0.39);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(255, 107, 53, 0.5);
    color: white;
}

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

.btn-secondary {
    background: var(--gray-100);
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
}

.btn-secondary:hover {
    background: var(--gray-200);
    color: var(--gray-800);
    transform: translateY(-1px);
}

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

.btn-outline-primary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.btn-sm {
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-xs);
    border-radius: var(--border-radius-sm);
}

.btn-lg {
    padding: var(--spacing-4) var(--spacing-8);
    font-size: var(--font-size-lg);
    border-radius: var(--border-radius-lg);
}

/* Floating Action Button */
.btn-fab {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--primary-gradient);
    color: white;
    border: none;
    box-shadow: var(--box-shadow-lg);
    position: fixed;
    bottom: var(--spacing-8);
    right: var(--spacing-8);
    z-index: 1000;
    transition: var(--transition-base);
}

.btn-fab:hover {
    transform: scale(1.1);
    box-shadow: var(--box-shadow-xl);
}

/* Form Styles - Modern form design */
.form-control {
    border-radius: var(--border-radius);
    border: 2px solid var(--gray-200);
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--font-size-base);
    transition: var(--transition-base);
    background: var(--lighter-color);
    color: var(--gray-800);
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
    outline: none;
    background: var(--lighter-color);
}

.form-control::placeholder {
    color: var(--gray-400);
    font-weight: 400;
}

.form-label {
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--spacing-2);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-select {
    border-radius: var(--border-radius);
    border: 2px solid var(--gray-200);
    padding: var(--spacing-3) var(--spacing-4);
    background: var(--lighter-color);
    transition: var(--transition-base);
}

.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.form-check-input {
    border-radius: var(--border-radius-sm);
    border: 2px solid var(--gray-300);
    transition: var(--transition-base);
}

.form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.form-check-input:focus {
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.form-check-label {
    font-weight: 500;
    color: var(--gray-700);
}

/* Rich Text Editor Styles - Enhanced editor design */
.rich-text-editor {
    min-height: 300px;
    border: 2px solid var(--gray-200);
    border-radius: 0 0 var(--border-radius) var(--border-radius);
    padding: var(--spacing-5);
    background: var(--lighter-color);
    font-size: var(--font-size-base);
    line-height: 1.7;
    color: var(--gray-800);
    transition: var(--transition-base);
    outline: none;
}

.rich-text-editor:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.rich-text-editor[contenteditable="true"]:empty:before {
    content: attr(placeholder);
    color: var(--gray-400);
    font-style: italic;
}

.editor-toolbar {
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--lighter-color) 100%);
    border: 2px solid var(--gray-200);
    border-bottom: none;
    padding: var(--spacing-3) var(--spacing-4);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    display: flex;
    gap: var(--spacing-1);
    flex-wrap: wrap;
}

.editor-toolbar .editor-btn {
    padding: var(--spacing-2) var(--spacing-3);
    border: none;
    background: transparent;
    border-radius: var(--border-radius-sm);
    transition: var(--transition-fast);
    color: var(--gray-600);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
}

.editor-toolbar .editor-btn:hover {
    background: var(--gray-200);
    color: var(--gray-800);
}

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

/* Editor content styling */
.rich-text-editor h1,
.rich-text-editor h2,
.rich-text-editor h3 {
    color: var(--gray-900);
    font-weight: 700;
    margin-top: var(--spacing-4);
    margin-bottom: var(--spacing-2);
}

.rich-text-editor ul,
.rich-text-editor ol {
    padding-left: var(--spacing-6);
    margin: var(--spacing-3) 0;
}

.rich-text-editor li {
    margin-bottom: var(--spacing-1);
}

.rich-text-editor strong {
    font-weight: 700;
    color: var(--gray-900);
}

.rich-text-editor em {
    font-style: italic;
    color: var(--gray-700);
}

/* Task Styles - Modern task card design */
.task-item {
    border-left: 4px solid var(--primary-color);
    transition: var(--transition-base);
    background: var(--lighter-color);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-4);
    position: relative;
    overflow: hidden;
}

.task-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary-color) 0%, rgba(255, 107, 53, 0.3) 100%);
}

.task-item.completed {
    border-left-color: var(--success-color);
    background: linear-gradient(135deg, var(--lighter-color) 0%, rgba(16, 185, 129, 0.05) 100%);
}

.task-item.completed::before {
    background: linear-gradient(180deg, var(--success-color) 0%, rgba(16, 185, 129, 0.3) 100%);
}

.task-item.high-priority {
    border-left-color: var(--danger-color);
    background: linear-gradient(135deg, var(--lighter-color) 0%, rgba(239, 68, 68, 0.05) 100%);
}

.task-item.high-priority::before {
    background: linear-gradient(180deg, var(--danger-color) 0%, rgba(239, 68, 68, 0.3) 100%);
}

.task-item.medium-priority {
    border-left-color: var(--warning-color);
    background: linear-gradient(135deg, var(--lighter-color) 0%, rgba(245, 158, 11, 0.05) 100%);
}

.task-item.medium-priority::before {
    background: linear-gradient(180deg, var(--warning-color) 0%, rgba(245, 158, 11, 0.3) 100%);
}

.task-item.low-priority {
    border-left-color: var(--gray-400);
    background: linear-gradient(135deg, var(--lighter-color) 0%, rgba(156, 163, 175, 0.05) 100%);
}

.task-item.low-priority::before {
    background: linear-gradient(180deg, var(--gray-400) 0%, rgba(156, 163, 175, 0.3) 100%);
}

.task-checkbox {
    transform: scale(1.3);
    margin-right: var(--spacing-4);
    border-radius: var(--border-radius-sm);
    border: 2px solid var(--gray-300);
    transition: var(--transition-base);
}

.task-checkbox:checked {
    background: var(--success-color);
    border-color: var(--success-color);
}

.task-title {
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: var(--spacing-2);
    transition: var(--transition-base);
}

.task-title.completed {
    text-decoration: line-through;
    color: var(--gray-500);
    opacity: 0.7;
}

.task-description {
    color: var(--gray-600);
    font-size: var(--font-size-sm);
    line-height: 1.5;
    margin-bottom: var(--spacing-3);
}

/* Note Styles - Modern note card design */
.note-item {
    border-left: 4px solid var(--primary-color);
    margin-bottom: var(--spacing-4);
    background: var(--lighter-color);
    border-radius: var(--border-radius);
    position: relative;
    overflow: hidden;
    transition: var(--transition-base);
}

.note-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary-color) 0%, rgba(255, 107, 53, 0.3) 100%);
}

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

.note-title {
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-2);
    font-size: var(--font-size-lg);
    line-height: 1.3;
}

.note-preview {
    max-height: 120px;
    overflow: hidden;
    position: relative;
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: var(--spacing-3);
}

.note-preview::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 30px;
    background: linear-gradient(transparent, var(--lighter-color));
    pointer-events: none;
}

.note-content {
    font-size: var(--font-size-base);
    line-height: 1.7;
    color: var(--gray-700);
}

.note-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-4);
    padding-top: var(--spacing-3);
    border-top: 1px solid var(--gray-200);
}

.note-date {
    font-size: var(--font-size-xs);
    color: var(--gray-500);
    font-weight: 500;
}

.note-actions {
    display: flex;
    gap: var(--spacing-2);
}

/* Tag Styles - Modern tag design */
.tag {
    display: inline-flex;
    align-items: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, rgba(255, 107, 53, 0.8) 100%);
    color: white;
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--border-radius-lg);
    font-size: var(--font-size-xs);
    font-weight: 600;
    margin-right: var(--spacing-2);
    margin-bottom: var(--spacing-2);
    transition: var(--transition-fast);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.tag:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(255, 107, 53, 0.3);
}

.tag-secondary {
    background: linear-gradient(135deg, var(--gray-500) 0%, var(--gray-400) 100%);
}

.tag-success {
    background: linear-gradient(135deg, var(--success-color) 0%, rgba(16, 185, 129, 0.8) 100%);
}

.tag-warning {
    background: linear-gradient(135deg, var(--warning-color) 0%, rgba(245, 158, 11, 0.8) 100%);
}

.tag-danger {
    background: linear-gradient(135deg, var(--danger-color) 0%, rgba(239, 68, 68, 0.8) 100%);
}

.tag-info {
    background: linear-gradient(135deg, var(--info-color) 0%, rgba(59, 130, 246, 0.8) 100%);
}

/* Badge styles for priority indicators */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: var(--border-radius);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge.bg-danger {
    background: var(--danger-color) !important;
    color: white;
}

.badge.bg-warning {
    background: var(--warning-color) !important;
    color: var(--gray-800);
}

.badge.bg-secondary {
    background: var(--gray-400) !important;
    color: white;
}

.badge.bg-success {
    background: var(--success-color) !important;
    color: white;
}

/* Notification Styles - Modern notification design */
.reminder-notification {
    position: fixed;
    top: var(--spacing-6);
    right: var(--spacing-6);
    z-index: 1050;
    max-width: 400px;
}

.alert {
    border: none;
    border-radius: var(--border-radius);
    padding: var(--spacing-4) var(--spacing-5);
    margin-bottom: var(--spacing-3);
    box-shadow: var(--box-shadow-lg);
    backdrop-filter: blur(10px);
    border-left: 4px solid;
}

.alert-success {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(16, 185, 129, 0.05) 100%);
    color: var(--success-color);
    border-left-color: var(--success-color);
}

.alert-danger {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1) 0%, rgba(239, 68, 68, 0.05) 100%);
    color: var(--danger-color);
    border-left-color: var(--danger-color);
}

.alert-warning {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1) 0%, rgba(245, 158, 11, 0.05) 100%);
    color: var(--warning-color);
    border-left-color: var(--warning-color);
}

.alert-info {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(59, 130, 246, 0.05) 100%);
    color: var(--info-color);
    border-left-color: var(--info-color);
}

/* Search Styles - Modern search design */
.search-container {
    position: relative;
    max-width: 400px;
}

.search-container input {
    background: rgba(255, 255, 255, 0.9);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: var(--gray-800);
    padding-left: var(--spacing-10);
    backdrop-filter: blur(10px);
}

.search-container input::placeholder {
    color: var(--gray-600);
}

.search-container::before {
    content: '\f002';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: var(--spacing-3);
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255, 255, 255, 0.7);
    z-index: 1;
}

.search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--lighter-color);
    border: 2px solid var(--gray-200);
    border-top: none;
    border-radius: 0 0 var(--border-radius) var(--border-radius);
    max-height: 300px;
    overflow-y: auto;
    z-index: 1000;
    box-shadow: var(--box-shadow-lg);
}

.search-result-item {
    padding: var(--spacing-3) var(--spacing-4);
    border-bottom: 1px solid var(--gray-100);
    cursor: pointer;
    transition: var(--transition-fast);
    color: var(--gray-700);
}

.search-result-item:hover {
    background: var(--gray-50);
    color: var(--gray-900);
}

.search-result-item:last-child {
    border-bottom: none;
}

/* Dropdown Menu Styles - Enhanced visibility and proper sizing */
.dropdown-menu {
    background: var(--lighter-color);
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow-lg);
    padding: var(--spacing-2);
    min-width: 200px;
    z-index: 1060;
    position: absolute;
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    transition: all var(--transition-fast);
}

.dropdown-menu.show {
    display: block !important;
}

/* Ensure dropdown doesn't get clipped by parent containers */
.dropdown {
    position: static;
}

.app-header .dropdown {
    position: relative;
}

/* Enhanced positioning for header dropdown */
.app-header .dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    left: auto;
    margin-top: var(--spacing-2);
}

/* Responsive dropdown positioning */
@media (max-width: 768px) {
    .app-header .dropdown-menu {
        position: fixed;
        top: auto;
        right: var(--spacing-3);
        left: auto;
        margin-top: 0;
        transform: translateY(10px);
    }

    .dropdown-menu {
        min-width: 180px;
        max-width: calc(100vw - 2rem);
    }
}

.dropdown-item {
    padding: var(--spacing-3) var(--spacing-4);
    border-radius: var(--border-radius-sm);
    transition: var(--transition-fast);
    color: var(--gray-700);
    font-weight: 500;
    display: flex;
    align-items: center;
    white-space: nowrap;
    text-decoration: none;
    border: none;
    background: transparent;
    width: 100%;
    text-align: left;
}

.dropdown-item:hover {
    background: var(--gray-50);
    color: var(--gray-900);
    transform: translateX(2px);
}

.dropdown-item:focus {
    background: var(--gray-50);
    color: var(--gray-900);
    outline: none;
}

.dropdown-item i {
    margin-right: var(--spacing-2);
    width: 16px;
    text-align: center;
}

.dropdown-divider {
    margin: var(--spacing-2) 0;
    border-top: 1px solid var(--gray-200);
}

/* Additional dropdown safety measures */
.dropdown-menu[data-bs-popper] {
    margin-top: var(--spacing-2);
}

/* Ensure dropdown is always visible when shown */
.dropdown.show .dropdown-menu {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
}

/* Prevent dropdown from being cut off by viewport edges */
.dropdown-menu.dropdown-menu-end {
    --bs-position: end;
}

/* Dark mode dropdown adjustments */
@media (prefers-color-scheme: dark) {
    .dropdown-menu {
        background: var(--lighter-color);
        border-color: var(--gray-300);
    }

    .dropdown-item {
        color: var(--gray-800);
    }

    .dropdown-item:hover,
    .dropdown-item:focus {
        background: var(--gray-200);
        color: var(--gray-900);
    }
}

/* Utility Classes - Modern animations and helpers */
.fade-in {
    animation: fadeIn 0.5s ease-out;
}

.slide-up {
    animation: slideUp 0.4s ease-out;
}

.scale-in {
    animation: scaleIn 0.3s ease-out;
}

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

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.loading {
    opacity: 0.6;
    pointer-events: none;
    position: relative;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--gray-300);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Glass morphism effect */
.glass {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Gradient text */
.gradient-text {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

/* Modern scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
    border-radius: var(--border-radius);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: var(--border-radius);
    transition: var(--transition-base);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-400);
}

/* Responsive Design - Mobile-first approach */
@media (max-width: 576px) {
    .container-fluid {
        padding-left: var(--spacing-3);
        padding-right: var(--spacing-3);
    }

    .app-header {
        padding: var(--spacing-4) 0;
    }

    .app-title {
        font-size: var(--font-size-2xl);
    }

    .search-container {
        max-width: 100%;
        margin-bottom: var(--spacing-3);
    }

    .card {
        margin-bottom: var(--spacing-4);
    }

    .btn {
        font-size: var(--font-size-sm);
        padding: var(--spacing-2) var(--spacing-4);
    }

    .btn-fab {
        bottom: var(--spacing-4);
        right: var(--spacing-4);
        width: 48px;
        height: 48px;
    }

    .modal-dialog {
        margin: var(--spacing-3);
    }

    .editor-toolbar {
        flex-wrap: wrap;
        gap: var(--spacing-1);
    }

    .rich-text-editor {
        min-height: 200px;
        font-size: var(--font-size-sm);
    }
}

@media (max-width: 768px) {
    .nav-tabs .nav-link {
        padding: var(--spacing-3) var(--spacing-4);
        font-size: var(--font-size-sm);
    }

    .card-header {
        padding: var(--spacing-4) var(--spacing-5);
        font-size: var(--font-size-base);
    }

    .note-title {
        font-size: var(--font-size-base);
    }

    .task-title {
        font-size: var(--font-size-base);
    }
}

@media (min-width: 1200px) {
    .container-fluid {
        max-width: 1400px;
        margin: 0 auto;
    }

    .card-columns {
        column-count: 3;
        column-gap: var(--spacing-6);
    }
}

/* Dark mode support - Enhanced */
@media (prefers-color-scheme: dark) {
    :root {
        --lighter-color: #1e293b;
        --light-color: #334155;
        --gray-50: #0f172a;
        --gray-100: #1e293b;
        --gray-200: #334155;
        --gray-300: #475569;
        --gray-400: #64748b;
        --gray-500: #94a3b8;
        --gray-600: #cbd5e1;
        --gray-700: #e2e8f0;
        --gray-800: #f1f5f9;
        --gray-900: #f8fafc;
    }

    body {
        background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
        color: var(--gray-800);
    }

    .card {
        background: var(--lighter-color);
        border: 1px solid var(--gray-200);
    }

    .form-control {
        background: var(--lighter-color);
        border-color: var(--gray-300);
        color: var(--gray-800);
    }

    .rich-text-editor {
        background: var(--lighter-color);
        color: var(--gray-800);
    }
}

/* ==================== ENHANCED TASK MANAGEMENT STYLES ==================== */

/* Subtask Management */
.subtask-container {
    max-height: 300px;
    overflow-y: auto;
}

.subtask-item {
    background: var(--gray-50);
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-2);
    transition: var(--transition-base);
}

.subtask-item:hover {
    background: var(--gray-100);
}

.subtask-input {
    border: none;
    background: transparent;
    font-size: var(--font-size-sm);
}

.subtask-input:focus {
    background: var(--lighter-color);
    box-shadow: 0 0 0 2px rgba(255, 107, 53, 0.1);
}

/* Priority Matrix Styles */
.priority-matrix-display {
    padding: var(--spacing-2);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-align: center;
    transition: var(--transition-base);
}

.priority-matrix-display.do-first {
    background: linear-gradient(135deg, var(--danger-color) 0%, rgba(239, 68, 68, 0.1) 100%);
    color: var(--danger-color);
}

.priority-matrix-display.schedule {
    background: linear-gradient(135deg, var(--warning-color) 0%, rgba(245, 158, 11, 0.1) 100%);
    color: var(--warning-color);
}

.priority-matrix-display.delegate {
    background: linear-gradient(135deg, var(--info-color) 0%, rgba(59, 130, 246, 0.1) 100%);
    color: var(--info-color);
}

.priority-matrix-display.eliminate {
    background: linear-gradient(135deg, var(--gray-400) 0%, rgba(156, 163, 175, 0.1) 100%);
    color: var(--gray-600);
}

/* Timer Widget Styles */
.timer-widget {
    position: fixed;
    bottom: var(--spacing-8);
    left: var(--spacing-8);
    background: var(--lighter-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow-xl);
    padding: var(--spacing-4);
    z-index: 1000;
    border: 2px solid var(--gray-200);
    min-width: 200px;
}

.timer-widget-content {
    text-align: center;
}

.timer-display {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-3);
    font-family: 'Courier New', monospace;
}

.timer-controls {
    display: flex;
    justify-content: center;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-2);
}

.timer-controls .btn {
    border-radius: 50%;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

/* Enhanced Task Cards */
.task-item-enhanced {
    background: var(--lighter-color);
    border-radius: var(--border-radius);
    border: 1px solid var(--gray-200);
    margin-bottom: var(--spacing-4);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.task-item-enhanced:hover {
    transform: translateY(-2px);
    box-shadow: var(--box-shadow-lg);
    border-color: var(--primary-color);
}

.task-header {
    display: flex;
    justify-content: between;
    align-items: flex-start;
    margin-bottom: var(--spacing-3);
}

.task-priority-indicator {
    width: 4px;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
    border-radius: var(--border-radius) 0 0 var(--border-radius);
}

.task-priority-indicator.high {
    background: var(--danger-color);
}

.task-priority-indicator.medium {
    background: var(--warning-color);
}

.task-priority-indicator.low {
    background: var(--gray-400);
}

.task-progress-bar {
    height: 6px;
    background: var(--gray-200);
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    margin: var(--spacing-2) 0;
}

.task-progress-fill {
    height: 100%;
    background: var(--primary-gradient);
    transition: var(--transition-base);
    border-radius: var(--border-radius-sm);
}

.task-time-tracking {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-xs);
    color: var(--gray-500);
}

.task-collaborators {
    display: flex;
    gap: var(--spacing-1);
    margin-top: var(--spacing-2);
}

.collaborator-avatar {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--primary-gradient);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xs);
    font-weight: 600;
}

/* Status Workflow */
.task-status-workflow {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    margin: var(--spacing-3) 0;
}

.status-step {
    flex: 1;
    text-align: center;
    position: relative;
}

.status-step::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -50%;
    width: 100%;
    height: 2px;
    background: var(--gray-200);
    z-index: 1;
}

.status-step:last-child::after {
    display: none;
}

.status-step.active::after {
    background: var(--primary-color);
}

.status-indicator {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--gray-200);
    color: var(--gray-500);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-1);
    position: relative;
    z-index: 2;
    transition: var(--transition-base);
}

.status-step.active .status-indicator {
    background: var(--primary-color);
    color: white;
}

.status-step.completed .status-indicator {
    background: var(--success-color);
    color: white;
}

/* Comments and Collaboration */
.task-comments {
    border-top: 1px solid var(--gray-200);
    padding-top: var(--spacing-3);
    margin-top: var(--spacing-3);
}

.comment-item {
    background: var(--gray-50);
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-3);
    margin-bottom: var(--spacing-2);
}

.comment-author {
    font-weight: 600;
    color: var(--gray-800);
    font-size: var(--font-size-sm);
}

.comment-time {
    font-size: var(--font-size-xs);
    color: var(--gray-500);
    margin-left: var(--spacing-2);
}

.comment-text {
    margin-top: var(--spacing-1);
    color: var(--gray-700);
}

.mention {
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
}

.mention:hover {
    text-decoration: underline;
}

/* Analytics and Reports */
.analytics-chart {
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-50);
    border-radius: var(--border-radius);
    color: var(--gray-500);
}

.metric-card {
    text-align: center;
    padding: var(--spacing-4);
}

.metric-value {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-1);
}

.metric-label {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Responsive Enhancements for Task Management */
@media (max-width: 768px) {
    .timer-widget {
        bottom: var(--spacing-4);
        left: var(--spacing-4);
        right: var(--spacing-4);
        min-width: auto;
    }

    .task-header {
        flex-direction: column;
        gap: var(--spacing-2);
    }

    .task-collaborators {
        justify-content: center;
    }

    .status-step {
        font-size: var(--font-size-xs);
    }

    .status-indicator {
        width: 24px;
        height: 24px;
        font-size: var(--font-size-xs);
    }
}