/* Основные стили и переменные */
:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --success-color: #059669;
    --success-hover: #047857;
    --danger-color: #dc2626;
    --danger-hover: #b91c1c;
    --warning-color: #d97706;
    --warning-hover: #b45309;
    
    --background-color: #f8fafc;
    --surface-color: #ffffff;
    --surface-hover: #f1f5f9;
    --border-color: #e2e8f0;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --transition: all 0.2s ease;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--background-color);
    color: var(--text-primary);
    line-height: 1.6;
}

/* Стили авторизации */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
}

.auth-container {
    width: 100%;
    max-width: 400px;
    padding: 2rem;
}

.auth-card {
    background: var(--surface-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 2rem;
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header h1 {
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

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

.auth-form {
    space-y: 1rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.form-group input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    background-color: var(--surface-color);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgb(37 99 235 / 0.1);
}

.form-hint {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.auth-button {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin: 1.5rem 0 1rem 0;
}

.auth-button:hover:not(:disabled) {
    background-color: var(--primary-hover);
}

.auth-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.button-spinner svg {
    animation: spin 1s linear infinite;
}

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

.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
}

.auth-footer p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.auth-footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.auth-footer a:hover {
    text-decoration: underline;
}

.error-message, .success-message {
    padding: 0.75rem;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    margin-top: 1rem;
}

.error-message {
    background-color: #fef2f2;
    color: var(--danger-color);
    border: 1px solid #fecaca;
}

.success-message {
    background-color: #f0fdf4;
    color: var(--success-color);
    border: 1px solid #bbf7d0;
}

/* Основное приложение */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.app-header {
    background: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

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

.user-info span {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.logout-button {
    padding: 0.5rem 1rem;
    background-color: var(--danger-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition);
}

.logout-button:hover {
    background-color: var(--danger-hover);
}

.main-content {
    flex: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    width: 100%;
}

/* Навигация */
.tab-navigation {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.tab-button {
    padding: 0.75rem 1.5rem;
    background: none;
    border: none;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    border-bottom: 2px solid transparent;
    color: var(--text-secondary);
}

.tab-button:hover {
    color: var(--text-primary);
    background-color: var(--surface-hover);
}

.tab-button.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    font-weight: 500;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Секции */
section {
    margin-bottom: 2rem;
}

section h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

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

.refresh-button {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.875rem;
}

.refresh-button:hover {
    background-color: var(--surface-hover);
    color: var(--text-primary);
}

/* Статистические карточки */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.stat-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    text-align: center;
    transition: var(--transition);
}

.stat-card:hover {
    box-shadow: var(--shadow-md);
}

.stat-card.income {
    border-left: 4px solid var(--success-color);
}

.stat-card.expense {
    border-left: 4px solid var(--danger-color);
}

.stat-card.profit {
    border-left: 4px solid var(--primary-color);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

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

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

.form-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.form-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.form-button {
    width: 100%;
    padding: 0.75rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 1rem;
}

.form-button:not(.income):not(.expense):not(.delete):not(.export) {
    background-color: var(--primary-color);
    color: white;
}

.form-button:not(.income):not(.expense):not(.delete):not(.export):hover {
    background-color: var(--primary-hover);
}

.form-button.income {
    background-color: var(--success-color);
    color: white;
}

.form-button.income:hover {
    background-color: var(--success-hover);
}

.form-button.expense {
    background-color: var(--danger-color);
    color: white;
}

.form-button.expense:hover {
    background-color: var(--danger-hover);
}

.form-button.delete {
    background-color: var(--danger-color);
    color: white;
}

.form-button.delete:hover {
    background-color: var(--danger-hover);
}

.form-button.export {
    background-color: var(--warning-color);
    color: white;
}

.form-button.export:hover {
    background-color: var(--warning-hover);
}

/* Фильтры */
.filters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
}

/* Таблица операций */
.transactions-container {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.transactions-table {
    min-height: 200px;
}

.transaction-item {
    display: grid;
    grid-template-columns: auto 1fr auto auto auto;
    gap: 1rem;
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    align-items: center;
    transition: var(--transition);
    cursor: pointer;
}

.transaction-item:hover {
    background-color: var(--surface-hover);
}

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

.transaction-type {
    width: 8px;
    height: 40px;
    border-radius: 4px;
}

.transaction-type.income {
    background-color: var(--success-color);
}

.transaction-type.expense {
    background-color: var(--danger-color);
}

.transaction-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.transaction-description {
    font-weight: 500;
    color: var(--text-primary);
}

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

.transaction-amount {
    font-weight: 600;
    font-size: 1.125rem;
}

.transaction-amount.income {
    color: var(--success-color);
}

.transaction-amount.expense {
    color: var(--danger-color);
}

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

.action-button {
    padding: 0.25rem;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    transition: var(--transition);
    border-radius: 4px;
}

.action-button:hover {
    color: var(--text-primary);
    background-color: var(--surface-hover);
}

/* График */
.chart-container {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    height: 400px;
}

/* Модальное окно */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    background: var(--surface-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 500px;
    margin: 2rem;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 1.5rem 0 1.5rem;
}

.modal-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-muted);
    padding: 0.25rem;
    line-height: 1;
}

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

.modal-body {
    padding: 1.5rem;
}

.modal-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.modal-actions .form-button {
    flex: 1;
    margin-top: 0;
}

/* Уведомления */
.notifications-container {
    position: fixed;
    top: 2rem;
    right: 2rem;
    z-index: 1100;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-width: 400px;
}

.notification {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1rem;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    animation: slideIn 0.3s ease;
}

.notification.success {
    border-left: 4px solid var(--success-color);
}

.notification.error {
    border-left: 4px solid var(--danger-color);
}

.notification.warning {
    border-left: 4px solid var(--warning-color);
}

.notification-content {
    flex: 1;
}

.notification-title {
    font-weight: 500;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

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

.notification-close {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    padding: 0;
    line-height: 1;
}

.notification-close:hover {
    color: var(--text-primary);
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Состояния загрузки */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 2rem;
    text-align: center;
    color: var(--text-secondary);
}

.empty-state h3 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.empty-state p {
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
}

/* Адаптивность */
@media (max-width: 768px) {
    .header-content {
        padding: 1rem;
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .main-content {
        padding: 1rem;
    }
    
    .forms-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .filters-grid {
        grid-template-columns: 1fr;
    }
    
    .transaction-item {
        grid-template-columns: auto 1fr auto;
        gap: 0.75rem;
    }
    
    .transaction-actions {
        grid-column: 1 / -1;
        justify-content: center;
        margin-top: 0.5rem;
    }
    
    .modal-content {
        margin: 1rem;
    }
    
    .notifications-container {
        top: 1rem;
        right: 1rem;
        left: 1rem;
        max-width: none;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .tab-navigation {
        gap: 0;
        justify-content: center;
    }
    
    .tab-button {
        flex: 1;
        text-align: center;
    }
}

/* Дополнительные утилитарные классы */
.text-center { text-align: center; }
.text-right { text-align: right; }
.font-bold { font-weight: 700; }
.font-medium { font-weight: 500; }
.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }
.mb-0 { margin-bottom: 0; }
.mt-2 { margin-top: 0.5rem; }
.hidden { display: none !important; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1rem; }