/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8fafc;
    min-height: 100vh;
}

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

/* Header */
.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem;
    border-radius: 12px;
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.header h1 {
    font-size: 2.5rem;
    font-weight: 700;
}

.total-cost {
    text-align: right;
}

.total-label {
    display: block;
    font-size: 0.9rem;
    opacity: 0.9;
    margin-bottom: 0.25rem;
}

.total-amount {
    font-size: 2rem;
    font-weight: 700;
}

/* Floating Action Button */
.fab {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 999;
}

.fab:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 12px 32px rgba(102, 126, 234, 0.6);
}

.fab:active {
    transform: translateY(-2px) scale(1.02);
}

.fab:focus {
    outline: none;
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.4), 0 0 0 3px rgba(102, 126, 234, 0.3);
}

.fab svg {
    transition: transform 0.2s ease;
}

.fab:hover svg {
    transform: rotate(90deg);
}

.subscription-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #374151;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.75rem;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
    min-height: 44px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.currency-symbol {
    position: absolute;
    left: 0.75rem;
    color: #6b7280;
    font-weight: 600;
    z-index: 1;
}

.input-wrapper input {
    padding-left: 2.5rem;
}

.error-message {
    color: #ef4444;
    font-size: 0.875rem;
    margin-top: 0.25rem;
    min-height: 1.25rem;
}

.form-actions {
    grid-column: 1 / -1;
    display: flex;
    gap: 1rem;
    justify-content: flex-start;
    margin-top: 1rem;
}

/* Button styles */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

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

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: #f3f4f6;
    color: #374151;
    border: 2px solid #e5e7eb;
}

.btn-secondary:hover {
    background: #e5e7eb;
}

.btn-danger {
    background: #ef4444;
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    min-height: 36px;
}

/* Subscriptions section */
.subscriptions-section {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.section-header h2 {
    color: #374151;
    font-size: 1.5rem;
}

.controls {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.search-input,
.filter-select,
.sort-select {
    padding: 0.5rem 0.75rem;
    border: 2px solid #e5e7eb;
    border-radius: 6px;
    font-size: 0.875rem;
    min-width: 150px;
    min-height: 36px;
}

/* Subscription list */
.subscriptions-list {
    display: grid;
    gap: 1rem;
}

.subscription-item {
    display: grid;
    grid-template-columns: 1fr auto auto;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    border: 2px solid #f3f4f6;
    border-radius: 10px;
    transition: all 0.2s;
    background: white;
}

.subscription-item:hover {
    border-color: #e5e7eb;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.subscription-info {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.subscription-name {
    font-size: 1.125rem;
    font-weight: 600;
    color: #111827;
}

.subscription-details {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}

.subscription-category {
    background: #f3f4f6;
    color: #374151;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.subscription-date {
    color: #6b7280;
    font-size: 0.875rem;
}

.subscription-notes {
    color: #6b7280;
    font-size: 0.875rem;
    font-style: italic;
}

.subscription-cost {
    font-size: 1.25rem;
    font-weight: 700;
    color: #111827;
}

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

.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: #6b7280;
    font-size: 1.125rem;
}

/* Summary section */
.summary-section {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.summary-section h2 {
    color: #374151;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

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

.summary-card {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    padding: 1.5rem;
    border-radius: 10px;
    text-align: center;
    border: 2px solid #f1f5f9;
}

.summary-card h3 {
    color: #475569;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.summary-card span {
    font-size: 1.75rem;
    font-weight: 700;
    color: #111827;
}

.category-breakdown {
    display: grid;
    gap: 0.75rem;
}

.category-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: #f8fafc;
    border-radius: 8px;
    border-left: 4px solid #667eea;
}

.category-name {
    font-weight: 600;
    color: #374151;
}

.category-cost {
    font-weight: 700;
    color: #111827;
}

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

.modal.show {
    display: flex;
}

.modal-content {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    max-width: 400px;
    width: 90%;
    margin: 0 1rem;
}

/* Form Modal Specific Styles */
.form-modal-content {
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    padding: 0;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 2rem 1rem 2rem;
    border-bottom: 2px solid #f3f4f6;
    margin-bottom: 0;
}

.modal-header h3 {
    margin: 0;
    color: #111827;
    font-size: 1.5rem;
}

.modal-close {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 6px;
    color: #6b7280;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    min-width: 44px;
}

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

.modal-close:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-modal-content .subscription-form {
    padding: 1rem 2rem 2rem 2rem;
    grid-template-columns: 1fr;
    gap: 1.25rem;
}

.modal-content h3 {
    margin-bottom: 1rem;
    color: #111827;
}

.modal-content p {
    margin-bottom: 1.5rem;
    color: #6b7280;
}

.modal-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

/* Responsive design */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    .header {
        flex-direction: column;
        text-align: center;
        padding: 1.5rem;
    }
    
    .header h1 {
        font-size: 2rem;
    }
    
    .total-cost {
        text-align: center;
    }
    
    .subscription-form {
        grid-template-columns: 1fr;
    }
    
    .section-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .controls {
        flex-direction: column;
    }
    
    .search-input,
    .filter-select,
    .sort-select {
        min-width: unset;
    }
    
    .subscription-item {
        grid-template-columns: 1fr;
        gap: 1rem;
        text-align: center;
    }
    
    .subscription-details {
        justify-content: center;
    }
    
    .subscription-actions {
        justify-content: center;
    }
    
    .summary-cards {
        grid-template-columns: 1fr;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .modal-actions {
        flex-direction: column;
    }
    
    .fab {
        bottom: 20px;
        right: 20px;
        width: 56px;
        height: 56px;
    }
    
    .form-modal-content {
        max-width: 95vw;
        margin: 0 0.5rem;
    }
    
    .modal-header {
        padding: 1.5rem 1rem 1rem 1rem;
    }
    
    .form-modal-content .subscription-form {
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    .header h1 {
        font-size: 1.5rem;
    }
    
    .total-amount {
        font-size: 1.5rem;
    }
    
    .add-subscription,
    .subscriptions-section,
    .summary-section {
        padding: 1rem;
    }
}

/* Focus styles for accessibility */
.btn:focus,
input:focus,
select:focus,
textarea:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .subscription-item {
        border-color: #000;
    }
    
    .btn-primary {
        background: #000;
        color: #fff;
    }
    
    .total-cost {
        background: rgba(255, 255, 255, 0.1);
        padding: 1rem;
        border-radius: 8px;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        transition: none !important;
        animation: none !important;
    }
    
    .fab:hover svg {
        transform: none;
    }
}