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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #5353ba 0%, #a53ca4 100%);
    min-height: 100vh;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    padding-bottom: 60px;
}

.header {
    text-align: center;
    margin-bottom: 40px;
}

.header-content {
    background: rgba(255, 255, 255, 0.95);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.fixed-link {
    position: fixed;
    bottom: 20px;
    left: 10px;
    background: #007BFF;
    color: white;
    padding: 10px 15px;
    text-decoration: none;
    border-radius: 50px;
    z-index: 999;
}

.logo {
    color: #4f46e5;
    font-size: 2.5rem;
    margin-bottom: 10px;
    font-weight: 700;
}

.logo i {
    margin-right: 15px;
}

.subtitle {
    color: #6b7280;
    font-size: 1.1rem;
    font-weight: 500;
}

.controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    gap: 20px;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, #4f46e5, #7c3aed);
    color: white;
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.4);
}

.btn-secondary {
    background: #f3f4f6;
    color: #374151;
    border: 1px solid #d1d5db;
}

.btn-secondary:hover {
    background: #e5e7eb;
    transform: translateY(-1px);
}

.btn-danger {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: white;
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(239, 68, 68, 0.4);
}

.filter-select {
    padding: 10px 16px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    background: white;
    font-size: 14px;
    cursor: pointer;
    min-width: 150px;
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: rgba(255, 255, 255, 0.95);
    padding: 25px;
    border-radius: 15px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: white;
}

.stat-card:nth-child(1) .stat-icon {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

.stat-card:nth-child(2) .stat-icon {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
}

.stat-card:nth-child(3) .stat-icon {
    background: linear-gradient(135deg, #10b981, #059669);
}

.stat-info h3 {
    font-size: 2rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 5px;
}

.stat-info p {
    color: #6b7280;
    font-weight: 500;
}

.plans-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 25px;
}

@media (max-width: 768px) {
    .plans-grid {
        margin-bottom: 120px;
    }
}

.plan-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    border-left: 4px solid transparent;
    min-height: 400px;
}

.plan-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.plan-card.status-belum_mulai {
    border-left-color: #f59e0b;
}

.plan-card.status-berlangsung {
    border-left-color: #3b82f6;
}

.plan-card.status-selesai {
    border-left-color: #10b981;
}

.plan-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 15px;
}

.plan-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 5px;
}

.plan-subject {
    color: #6b7280;
    font-size: 0.9rem;
    font-weight: 500;
}

.status-badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: capitalize;
}

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

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

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

.plan-details {
    margin: 15px 0;
}

.plan-detail-item {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: #4b5563;
}

.plan-detail-item i {
    width: 16px;
    color: #6b7280;
}

.plan-description {
    color: #4b5563;
    font-size: 0.9rem;
    line-height: 1.5;
    margin: 15px 0;
}

.plan-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.btn-small {
    padding: 8px 16px;
    font-size: 0.8rem;
}

.btn-icon {
    padding: 8px;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    backdrop-filter: blur(5px);
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: white;
    border-radius: 15px;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
}

.modal-small {
    max-width: 400px;
}

.modal-header {
    padding: 25px;
    border-bottom: 1px solid #e5e7eb;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2,
.modal-header h3 {
    color: #1f2937;
    font-weight: 700;
}

.close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: #6b7280;
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.close-btn:hover {
    background: #f3f4f6;
    color: #374151;
}

.modal-form {
    padding: 25px;
}

.modal-body {
    padding: 25px;
    text-align: center;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #374151;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 14px;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: #4f46e5;
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-actions {
    display: flex;
    gap: 15px;
    justify-content: flex-end;
    margin-top: 25px;
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: #6b7280;
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: 20px;
    color: #d1d5db;
}

.empty-state h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: #374151;
}

@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .controls {
        flex-direction: column;
        align-items: stretch;
        gap: 15px;
    }
    
    .plans-grid {
        grid-template-columns: 1fr;
    }
    
    .plan-actions {
        flex-wrap: wrap;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .stats {
        grid-template-columns: 1fr;
    }
}

.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #4f46e5;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.plan-card,
.stat-card,
.btn {
    will-change: transform;
}