/* Main Styles */
:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --border-radius: 0.5rem;
    --box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --box-shadow-lg: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
}

/* Custom Cards */
.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: all 0.3s ease;
}

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

/* Sidebar */
.sidebar {
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.sidebar .nav-link {
    color: rgba(255, 255, 255, 0.8);
    padding: 12px 20px;
    border-radius: var(--border-radius);
    margin: 2px 10px;
    transition: all 0.3s ease;
}

.sidebar .nav-link:hover,
.sidebar .nav-link.active {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    transform: translateX(5px);
}

.sidebar .nav-link i {
    width: 20px;
    margin-right: 10px;
}

/* Main Content */
.main-content {
    background-color: #f8f9fa;
    min-height: 100vh;
}

/* Header */
.header {
    background: white;
    border-bottom: 1px solid #dee2e6;
    padding: 1rem 0;
    margin-bottom: 2rem;
}

/* Stats Cards */
.stats-card {
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
    color: white;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-bottom: 1rem;
    position: relative;
    overflow: hidden;
}

.stats-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transform: translate(30px, -30px);
}

.stats-card.success {
    background: linear-gradient(135deg, var(--success-color), #146c43);
}

.stats-card.warning {
    background: linear-gradient(135deg, var(--warning-color), #ffc107);
    color: var(--dark-color);
}

.stats-card.danger {
    background: linear-gradient(135deg, var(--danger-color), #b02a37);
}

.stats-card.info {
    background: linear-gradient(135deg, #0dcaf0, #0aa2c0);
}

/* Project Cards */
.project-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.project-status {
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
}

.status-active {
    background-color: #d1ecf1;
    color: #0c5460;
}

.status-completed {
    background-color: #d4edda;
    color: #155724;
}

.status-archived {
    background-color: #f8d7da;
    color: #721c24;
}

.status-on_hold {
    background-color: #fff3cd;
    color: #856404;
}

/* Priority Badges */
.priority-high {
    background-color: var(--danger-color);
}

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

.priority-low {
    background-color: var(--success-color);
}

/* Task Items */
.task-item {
    background: white;
    border-radius: var(--border-radius);
    padding: 1rem;
    margin-bottom: 0.5rem;
    border-left: 4px solid var(--primary-color);
    transition: all 0.3s ease;
    cursor: pointer;
}

.task-item:hover {
    box-shadow: var(--box-shadow);
    transform: translateX(5px);
}

.task-item.completed {
    opacity: 0.7;
    border-left-color: var(--success-color);
}

.task-item.completed .task-title {
    text-decoration: line-through;
}

.task-status {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 15px;
    font-weight: 500;
}

.task-status.pending {
    background-color: #e2e3e5;
    color: #495057;
}

.task-status.in_progress {
    background-color: #cce5ff;
    color: #0066cc;
}

.task-status.completed {
    background-color: #d4edda;
    color: #155724;
}

/* Forms */
.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

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

.btn-primary:hover {
    background-color: #0056b3;
    border-color: #0056b3;
}

/* Progress Bars */
.progress {
    height: 8px;
    border-radius: 10px;
}

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

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

/* Loading States */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1055;
}

.toast {
    border: none;
    box-shadow: var(--box-shadow-lg);
}

/* Mobile Menu Overlay */
.mobile-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1049;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.mobile-overlay.show {
    opacity: 1;
    visibility: visible;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        position: fixed;
        top: 0;
        left: 0;
        width: 280px;
        z-index: 1050;
        height: 100vh;
        overflow-y: auto;
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    /* Add close button for mobile */
    .sidebar .mobile-close {
        position: absolute;
        top: 15px;
        right: 15px;
        background: rgba(255, 255, 255, 0.2);
        border: none;
        color: white;
        border-radius: 50%;
        width: 35px;
        height: 35px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
        transition: background-color 0.3s ease;
    }
    
    .sidebar .mobile-close:hover {
        background: rgba(255, 255, 255, 0.3);
    }
    
    /* Auto-close menu when clicking nav links */
    .sidebar .nav-link {
        position: relative;
    }
    
    .main-content {
        padding-left: 0;
    }
    
    .stats-card {
        margin-bottom: 1rem;
    }
    
    .project-card {
        margin-bottom: 1rem;
    }
    
    /* Make hamburger button more prominent */
    #sidebarToggle {
        border: 2px solid #6c757d;
        padding: 8px 12px;
        border-radius: 8px;
        transition: all 0.2s ease;
    }
    
    #sidebarToggle:hover {
        border-color: var(--primary-color);
        color: var(--primary-color);
    }
}

/* Dark Theme Support */
@media (prefers-color-scheme: dark) {
    :root {
        --light-color: #343a40;
        --dark-color: #f8f9fa;
    }
    
    .main-content {
        background-color: #212529;
        color: #f8f9fa;
    }
    
    .card {
        background-color: #343a40;
        color: #f8f9fa;
    }
    
    .header {
        background-color: #343a40;
        border-bottom-color: #495057;
    }
    
    .task-item {
        background-color: #495057;
        color: #f8f9fa;
    }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a1a1a1;
}

/* Project Card Compact Design */
.project-card {
    transition: all 0.2s ease;
}

.project-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

/* Priority Dots */
.priority-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
    flex-shrink: 0;
}

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

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

.priority-dot.priority-low {
    background-color: var(--success-color);
}

/* Task Item Compact */
.task-item-compact {
    padding: 4px 8px;
    border-radius: 4px;
    transition: background-color 0.2s ease;
    font-size: 0.875rem;
}

.task-item-compact:hover {
    background-color: rgba(13, 110, 253, 0.1);
}

.task-name {
    font-weight: 500;
    color: #495057;
}

.task-item-compact:hover .task-name {
    color: var(--primary-color);
}

/* Task List Container */
.task-list {
    border: 1px solid #e9ecef;
    border-radius: 6px;
    padding: 8px;
    background-color: #fafbfc;
}

.task-list:empty::after {
    content: "No pending tasks";
    color: #6c757d;
    font-style: italic;
    font-size: 0.875rem;
    display: block;
    text-align: center;
    padding: 8px;
}

/* Compact spacing for project cards */
.project-card .card-body {
    padding: 1rem;
}

.project-card .card-footer {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
}

/* Task view modal styling */
.modal-lg .modal-body {
    padding: 1.5rem;
}

.modal-lg .card {
    border: 1px solid #e9ecef;
}

.modal-lg .card-body {
    padding: 1rem;
}

/* Badge styling consistency */
.badge {
    font-size: 0.75rem;
    padding: 0.35em 0.65em;
    font-weight: 500;
}

/* Status badge specific styling */
.badge.bg-primary {
    background-color: var(--primary-color) !important;
    color: white !important;
}

.project-status.status-active {
    background-color: var(--primary-color) !important;
    color: white !important;
}

/* Project title link styling */
.project-title-link {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

.project-title-link:hover {
    color: var(--primary-color) !important;
    text-decoration: none;
}

.project-title-link:focus {
    color: var(--primary-color) !important;
    text-decoration: none;
    outline: none;
}