/* TimeTracker Custom Styles */
:root {
    --primary-color: #2563eb;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #06b6d4;
    --dark-color: #1e293b;
    --light-bg: #f8fafc;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--light-bg);
    color: #334155;
}

/* Sidebar */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: 250px;
    background: white;
    box-shadow: 2px 0 10px rgba(0,0,0,0.05);
    z-index: 1000;
    overflow-y: auto;
}

.sidebar .logo {
    padding: 1.5rem 1rem;
    border-bottom: 1px solid #e2e8f0;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.sidebar-nav {
    padding: 1rem 0;
}

.sidebar-nav .nav-link {
    padding: 0.75rem 1.5rem;
    color: #64748b;
    transition: all 0.2s;
    border-left: 3px solid transparent;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.sidebar-nav .nav-link:hover {
    background-color: #f1f5f9;
    color: var(--primary-color);
}

.sidebar-nav .nav-link.active {
    background-color: #eff6ff;
    color: var(--primary-color);
    border-left-color: var(--primary-color);
    font-weight: 500;
}

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

/* Main Content */
.main-content {
    margin-left: 250px;
    padding: 2rem;
    min-height: 100vh;
}

/* Cards */
.card {
    border: none;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    border-radius: 0.75rem;
    margin-bottom: 1.5rem;
}

.card-header {
    background: white;
    border-bottom: 1px solid #e2e8f0;
    padding: 1.25rem 1.5rem;
    font-weight: 600;
    border-radius: 0.75rem 0.75rem 0 0 !important;
}

.card-body {
    padding: 1.5rem;
}

/* Dashboard Stats */
.stat-card {
    padding: 1.5rem;
    border-radius: 0.75rem;
    color: white;
    margin-bottom: 1.5rem;
    transition: transform 0.2s;
}

.stat-card:hover {
    transform: translateY(-2px);
}

.stat-card.primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.stat-card.success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.stat-card.warning {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.stat-card.info {
    background: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
}

.stat-card .stat-value {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-card .stat-label {
    font-size: 0.875rem;
    opacity: 0.9;
}

/* Timer Display */
.timer-display {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem;
    border-radius: 1rem;
    text-align: center;
    margin-bottom: 2rem;
}

.timer-display .time {
    font-size: 3rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.1em;
}

.timer-display .project-name {
    font-size: 1.125rem;
    margin-top: 1rem;
    opacity: 0.9;
}

/* Buttons */
.btn {
    padding: 0.625rem 1.25rem;
    border-radius: 0.5rem;
    font-weight: 500;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background-color: #1d4ed8;
    border-color: #1d4ed8;
    transform: translateY(-1px);
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* Tables */
.table {
    border-collapse: separate;
    border-spacing: 0;
}

.table thead th {
    background-color: #f8fafc;
    border-bottom: 2px solid #e2e8f0;
    color: #475569;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    padding: 1rem;
}

.table tbody td {
    padding: 1rem;
    vertical-align: middle;
    border-bottom: 1px solid #f1f5f9;
}

.table tbody tr:hover {
    background-color: #f8fafc;
}

/* Customer Color Badge */
.customer-badge {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin-right: 0.5rem;
}

/* Priority Badges */
.priority-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 0.375rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.priority-high {
    background-color: #fee2e2;
    color: #991b1b;
}

.priority-medium {
    background-color: #fef3c7;
    color: #92400e;
}

.priority-low {
    background-color: #dbeafe;
    color: #1e40af;
}

/* Status Badges */
.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 0.375rem;
    font-size: 0.75rem;
    font-weight: 600;
}

.status-active {
    background-color: #d1fae5;
    color: #065f46;
}

.status-inactive {
    background-color: #f3f4f6;
    color: #6b7280;
}

.status-billed {
    background-color: #dbeafe;
    color: #1e40af;
}

.status-unbilled {
    background-color: #fef3c7;
    color: #92400e;
}

/* Forms */
.form-label {
    font-weight: 500;
    color: #475569;
    margin-bottom: 0.5rem;
}

.form-control, .form-select {
    border: 1px solid #e2e8f0;
    border-radius: 0.5rem;
    padding: 0.625rem 0.875rem;
    transition: all 0.2s;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Modals */
.modal-content {
    border: none;
    border-radius: 1rem;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.modal-header {
    border-bottom: 1px solid #e2e8f0;
    padding: 1.5rem;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    border-top: 1px solid #e2e8f0;
    padding: 1.5rem;
}

/* Login Page */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-card {
    width: 100%;
    max-width: 400px;
    padding: 2.5rem;
    background: white;
    border-radius: 1rem;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2);
}

.login-card .logo {
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 2rem;
}

/* Alert Messages */
.alert {
    border: none;
    border-radius: 0.75rem;
    padding: 1rem 1.25rem;
}

.alert-success {
    background-color: #d1fae5;
    color: #065f46;
}

.alert-danger {
    background-color: #fee2e2;
    color: #991b1b;
}

.alert-warning {
    background-color: #fef3c7;
    color: #92400e;
}

.alert-info {
    background-color: #dbeafe;
    color: #1e40af;
}

/* Todo List */
.todo-item {
    padding: 1rem;
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 0.5rem;
    margin-bottom: 0.75rem;
    transition: all 0.2s;
    cursor: move;
}

.todo-item:hover {
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transform: translateY(-2px);
}

.todo-item.completed {
    opacity: 0.6;
    background-color: #f8fafc;
}

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

.todo-title {
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.todo-meta {
    font-size: 0.875rem;
    color: #64748b;
}

/* Week View */
.week-view {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 0.5rem;
    margin-top: 1rem;
}

.day-card {
    padding: 1rem;
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 0.5rem;
    text-align: center;
}

.day-card .day-name {
    font-size: 0.75rem;
    font-weight: 600;
    color: #64748b;
    text-transform: uppercase;
}

.day-card .day-hours {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-top: 0.5rem;
}

.day-card.today {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.day-card.today .day-name,
.day-card.today .day-hours {
    color: white;
}

/* Quick Actions */
.quick-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.quick-action-btn {
    flex: 1;
    padding: 1.5rem;
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: 0.75rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

.quick-action-btn:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.quick-action-btn i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.quick-action-btn .label {
    font-weight: 600;
    color: #334155;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
    }
    
    .main-content {
        margin-left: 0;
        padding: 1rem;
    }
    
    .week-view {
        grid-template-columns: 1fr;
    }
    
    .quick-actions {
        flex-direction: column;
    }
}

/* Loading Spinner */
.spinner-border-sm {
    width: 1rem;
    height: 1rem;
    border-width: 0.15em;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: #94a3b8;
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.empty-state h4 {
    margin-bottom: 0.5rem;
    color: #64748b;
}

/* Utility Classes */
.text-muted {
    color: #94a3b8 !important;
}

.fw-600 {
    font-weight: 600;
}

.rounded-lg {
    border-radius: 0.75rem;
}

/* Smooth Animations */
.fade-in {
    animation: fadeIn 0.3s ease-in;
}

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