/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1a5f7a;
    --secondary-color: #159895;
    --accent-color: #57c5b6;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --dark: #0f172a;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-600: #475569;
    --gray-800: #1e293b;
    --white: #ffffff;
    
    --phase-1-color: #3b82f6;
    --phase-2-color: #8b5cf6;
    --phase-3-color: #ec4899;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background: linear-gradient(135deg, #f5f7fa 0%, #e9ecef 100%);
    min-height: 100vh;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    padding: 2rem 0;
    box-shadow: var(--shadow-md);
}

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

.logo-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.logo-subtitle {
    font-size: 1.25rem;
    font-weight: 500;
    opacity: 0.95;
}

.date-range {
    font-size: 0.95rem;
    opacity: 0.85;
    margin-top: 0.25rem;
}

.vision-badge {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.vision-badge i {
    font-size: 1.3rem;
}

/* Overall Progress Section */
.overall-progress {
    padding: 2.5rem 0;
}

.progress-card {
    background: var(--white);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow-md);
}

.progress-card h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.progress-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
    background: var(--gray-100);
    border-radius: 12px;
    transition: all 0.3s ease;
}

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

.stat-value {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.95rem;
    color: var(--gray-600);
    font-weight: 500;
}

/* Progress Bar */
.progress-bar-container {
    background: var(--gray-200);
    border-radius: 50px;
    height: 16px;
    overflow: hidden;
    position: relative;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-color), var(--secondary-color));
    border-radius: 50px;
    transition: width 0.6s ease;
    position: relative;
    overflow: hidden;
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Phase Progress */
.phase-progress {
    padding: 2rem 0;
}

.section-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.phases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
}

.phase-card {
    background: var(--white);
    border-radius: 16px;
    padding: 1.75rem;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.phase-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.phase-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.phase-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: var(--white);
}

.phase-1 .phase-icon {
    background: linear-gradient(135deg, var(--phase-1-color), #60a5fa);
}

.phase-2 .phase-icon {
    background: linear-gradient(135deg, var(--phase-2-color), #a78bfa);
}

.phase-3 .phase-icon {
    background: linear-gradient(135deg, var(--phase-3-color), #f472b6);
}

.phase-header h3 {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.phase-subtitle {
    font-size: 0.9rem;
    color: var(--gray-600);
}

.phase-stats {
    text-align: center;
    margin-bottom: 1rem;
}

.phase-percentage {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.phase-card[data-phase="1"] .phase-percentage {
    color: var(--phase-1-color);
}

.phase-card[data-phase="2"] .phase-percentage {
    color: var(--phase-2-color);
}

.phase-card[data-phase="3"] .phase-percentage {
    color: var(--phase-3-color);
}

.phase-count {
    font-size: 1rem;
    color: var(--gray-600);
    font-weight: 500;
}

.phase-1-bar {
    background: linear-gradient(90deg, var(--phase-1-color), #60a5fa);
}

.phase-2-bar {
    background: linear-gradient(90deg, var(--phase-2-color), #a78bfa);
}

.phase-3-bar {
    background: linear-gradient(90deg, var(--phase-3-color), #f472b6);
}

/* Activities Section */
.activities-section {
    padding: 2rem 0 4rem;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

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

.export-buttons {
    display: flex;
    gap: 0.5rem;
}

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

.filter-btn {
    padding: 0.65rem 1.25rem;
    border: 2px solid var(--gray-300);
    background: var(--white);
    color: var(--gray-600);
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

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

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

/* Activity Items */
.activity-group {
    margin-bottom: 2rem;
}

.activity-group-header {
    background: linear-gradient(135deg, var(--gray-800), var(--gray-600));
    color: var(--white);
    padding: 1.25rem 1.5rem;
    border-radius: 12px 12px 0 0;
    font-weight: 700;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.activity-list {
    background: var(--white);
    border-radius: 0 0 12px 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.activity-item {
    padding: 1.5rem;
    border-bottom: 1px solid var(--gray-200);
    transition: all 0.3s ease;
}

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

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

.activity-item.completed {
    opacity: 0.75;
    background: #f0fdf4;
}

.activity-header {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 0.75rem;
}

.activity-checkbox {
    position: relative;
    margin-top: 0.15rem;
}

.activity-checkbox input[type="checkbox"] {
    width: 24px;
    height: 24px;
    cursor: pointer;
    accent-color: var(--success-color);
}

.activity-content {
    flex: 1;
}

.activity-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 0.5rem;
}

.activity-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.35rem 0.75rem;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
}

.phase-badge-1 {
    background: rgba(59, 130, 246, 0.15);
    color: var(--phase-1-color);
}

.phase-badge-2 {
    background: rgba(139, 92, 246, 0.15);
    color: var(--phase-2-color);
}

.phase-badge-3 {
    background: rgba(236, 72, 153, 0.15);
    color: var(--phase-3-color);
}

.week-badge {
    background: var(--gray-200);
    color: var(--gray-600);
}

.category-badge {
    background: var(--accent-color);
    color: var(--white);
}

.date-badge {
    background: #fef3c7;
    color: #92400e;
    font-weight: 700;
}

.activity-text {
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--dark);
    margin-bottom: 0.75rem;
}

.activity-item.completed .activity-text {
    text-decoration: line-through;
    color: var(--gray-600);
}

.activity-actions {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
    margin-top: 0.75rem;
}

.btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

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

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

.btn-secondary {
    background: var(--gray-300);
    color: var(--gray-800);
}

.btn-secondary:hover {
    background: var(--gray-600);
    color: var(--white);
}

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

.btn-danger:hover {
    background: #dc2626;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.recommended-action {
    margin-top: 1rem;
    padding: 1rem;
    background: #fef3c7;
    border-left: 4px solid var(--warning-color);
    border-radius: 6px;
}

.recommended-action-label {
    font-weight: 700;
    color: #92400e;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.recommended-action-text {
    color: #78350f;
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--white);
    border-radius: 16px;
    width: 90%;
    max-width: 600px;
    box-shadow: var(--shadow-lg);
    animation: modalSlideIn 0.3s ease;
}

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

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--gray-600);
    line-height: 1;
    transition: color 0.3s ease;
}

.modal-close:hover {
    color: var(--danger-color);
}

.modal-body {
    padding: 1.5rem;
}

.modal-body textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--gray-300);
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    resize: vertical;
    min-height: 120px;
}

.modal-body textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.modal-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--gray-200);
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
}

/* Footer */
.footer {
    background: var(--gray-800);
    color: var(--white);
    text-align: center;
    padding: 2rem 0;
    margin-top: auto;
}

.footer p {
    margin-bottom: 0.5rem;
}

.footer-subtitle {
    opacity: 0.8;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .logo-title {
        font-size: 1.75rem;
    }
    
    .logo-subtitle {
        font-size: 1rem;
    }
    
    .header-content {
        text-align: center;
    }
    
    .vision-badge {
        margin: 0 auto;
    }
    
    .progress-stats {
        grid-template-columns: 1fr 1fr;
    }
    
    .stat-value {
        font-size: 2rem;
    }
    
    .phases-grid {
        grid-template-columns: 1fr;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .filter-buttons {
        width: 100%;
    }
    
    .filter-btn {
        flex: 1;
        min-width: 80px;
        text-align: center;
    }
    
    .activity-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
}

/* Loading State */
.loading {
    text-align: center;
    padding: 3rem;
    color: var(--gray-600);
}

.loading i {
    font-size: 3rem;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--gray-600);
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state p {
    font-size: 1.1rem;
}