:root {
    --primary-color: #1F4E78;
    --secondary-color: #2C5F8D;
    --accent-color: #4A90E2;
    --success-color: #22C55E;
    --warning-color: #F59E0B;
    --danger-color: #EF4444;
    --text-primary: #1F2937;
    --text-secondary: #6B7280;
    --bg-primary: #FFFFFF;
    --bg-secondary: #F9FAFB;
    --bg-tertiary: #F3F4F6;
    --border-color: #E5E7EB;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

body.dark-mode {
    --text-primary: #F9FAFB;
    --text-secondary: #D1D5DB;
    --bg-primary: #111827;
    --bg-secondary: #1F2937;
    --bg-tertiary: #374151;
    --border-color: #4B5563;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: all 0.3s ease;
}

.app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header Styles */
.header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.brand i {
    font-size: 2rem;
    color: var(--primary-color);
}

.brand h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: none;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

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

.user-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.user-name {
    font-weight: 600;
    color: var(--text-primary);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
}

/* Metrics Bar */
.metrics-bar {
    max-width: 1400px;
    margin: 2rem auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.metric-card {
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

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

.metric-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.metric-icon.wealth { background: linear-gradient(135deg, #10B981, #059669); }
.metric-icon.work { background: linear-gradient(135deg, #3B82F6, #2563EB); }
.metric-icon.health { background: linear-gradient(135deg, #EF4444, #DC2626); }
.metric-icon.growth { background: linear-gradient(135deg, #8B5CF6, #7C3AED); }

.metric-content {
    display: flex;
    flex-direction: column;
}

.metric-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.metric-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* Toolbar */
.toolbar {
    max-width: 1400px;
    margin: 0 auto 2rem;
    padding: 0 2rem;
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}

.search-box {
    flex: 1;
    min-width: 300px;
    position: relative;
}

.search-box i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

.search-box input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 3rem;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.search-box input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.filter-group {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.filter-select {
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-select:focus {
    outline: none;
    border-color: var(--accent-color);
}

/* Cluster Tabs */
.cluster-tabs {
    max-width: 1400px;
    margin: 0 auto 2rem;
    padding: 0 2rem;
    display: flex;
    gap: 0.75rem;
    overflow-x: auto;
    scrollbar-width: none;
}

.cluster-tabs::-webkit-scrollbar {
    display: none;
}

.tab-btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 10px;
    background: var(--bg-primary);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tab-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

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

/* Task Grid */
.task-grid {
    max-width: 1400px;
    margin: 0 auto 2rem;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
}

.task-card {
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border-left: 4px solid transparent;
}

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

.task-card.priority-High {
    border-left-color: var(--danger-color);
}

.task-card.priority-Medium {
    border-left-color: var(--warning-color);
}

.task-card.priority-Low {
    border-left-color: var(--success-color);
}

.task-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 1rem;
}

.task-id-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 700;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.task-cluster {
    padding: 0.25rem 0.75rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
}

.task-cluster.WEALTH { background: #10B981; }
.task-cluster.WORK { background: #3B82F6; }
.task-cluster.HEALTH { background: #EF4444; }
.task-cluster.RELATIONSHIPS { background: #F59E0B; }
.task-cluster.GROWTH { background: #8B5CF6; }

.task-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.task-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.task-meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.task-meta-item i {
    color: var(--accent-color);
}

.progress-section {
    margin-bottom: 1rem;
}

.progress-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.progress-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.progress-value {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--accent-color);
}

.progress-bar {
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 10px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-color), var(--primary-color));
    border-radius: 10px;
    transition: width 0.5s ease;
}

.next-action {
    background: var(--bg-secondary);
    padding: 0.75rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.next-action-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    margin-bottom: 0.25rem;
}

.next-action-text {
    font-size: 0.875rem;
    color: var(--text-primary);
}

.task-actions {
    display: flex;
    gap: 0.5rem;
}

.btn-action {
    flex: 1;
    padding: 0.625rem;
    border: none;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-continue {
    background: #3B82F6;
    color: white;
}

.btn-continue:hover {
    background: #2563EB;
    transform: translateY(-2px);
}

.btn-execute {
    background: #22C55E;
    color: white;
}

.btn-execute:hover {
    background: #16A34A;
    transform: translateY(-2px);
}

.btn-analyze {
    background: #F59E0B;
    color: white;
}

.btn-analyze:hover {
    background: #D97706;
    transform: translateY(-2px);
}

.btn-execute:disabled {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    cursor: not-allowed;
    opacity: 0.5;
}

.btn-execute:disabled:hover {
    transform: none;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-primary);
    border-radius: 16px;
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: modalSlideIn 0.3s ease;
}

.modal-large {
    max-width: 800px;
}

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

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.close-btn {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    border: none;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.close-btn:hover {
    background: var(--danger-color);
    color: white;
}

.modal-body {
    padding: 1.5rem;
}

.modal-section {
    margin-bottom: 1.5rem;
}

.modal-section:last-child {
    margin-bottom: 0;
}

.modal-section-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.info-item {
    background: var(--bg-secondary);
    padding: 1rem;
    border-radius: 8px;
}

.info-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    margin-bottom: 0.25rem;
}

.info-value {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.subtask-list {
    list-style: none;
}

.subtask-item {
    padding: 0.75rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.subtask-item.completed {
    opacity: 0.6;
}

.subtask-checkbox {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.subtask-item.completed .subtask-checkbox {
    background: var(--success-color);
    border-color: var(--success-color);
    color: white;
}

.subtask-text {
    flex: 1;
    font-size: 0.95rem;
    color: var(--text-primary);
}

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

.btn-primary {
    width: 100%;
    padding: 1rem;
    border: none;
    border-radius: 10px;
    background: var(--primary-color);
    color: white;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

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

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

.btn-success:hover {
    background: #16A34A;
}

.chart-container {
    background: var(--bg-secondary);
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.stage-timeline {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.stage-item {
    flex: 1;
    height: 40px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
    background: var(--bg-tertiary);
}

.stage-item.active {
    background: var(--accent-color);
}

.stage-item.completed {
    background: var(--success-color);
}

.velocity-metric {
    display: flex;
    justify-content: space-between;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    margin-bottom: 0.5rem;
}

.velocity-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.velocity-value {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-content {
        padding: 1rem;
    }

    .brand h1 {
        font-size: 1.25rem;
    }

    .subtitle {
        display: none;
    }

    .user-name {
        display: none;
    }

    .metrics-bar {
        padding: 0 1rem;
        grid-template-columns: repeat(2, 1fr);
    }

    .toolbar {
        padding: 0 1rem;
        flex-direction: column;
    }

    .search-box {
        width: 100%;
    }

    .filter-group {
        width: 100%;
    }

    .filter-select {
        flex: 1;
    }

    .cluster-tabs {
        padding: 0 1rem;
    }

    .task-grid {
        padding: 0 1rem;
        grid-template-columns: 1fr;
    }

    .info-grid {
        grid-template-columns: 1fr;
    }

    .task-actions {
        flex-direction: column;
    }
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
}

.empty-state i {
    font-size: 4rem;
    color: var(--text-secondary);
    opacity: 0.5;
    margin-bottom: 1rem;
}

.empty-state h3 {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.empty-state p {
    color: var(--text-secondary);
    opacity: 0.7;
}

/* Loading Animation */
.loading {
    display: flex;
    justify-content: center;
    padding: 2rem;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--bg-tertiary);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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