/* ============================================
   ОСНОВНЫЕ СТИЛИ И ПЕРЕМЕННЫЕ
   ============================================ */

:root {
    /* Цветовая палитра */
    --color-primary: #6366f1;
    --color-primary-dark: #4f46e5;
    --color-primary-light: #e0e7ff;
    
    --color-success: #10b981;
    --color-success-light: #d1fae5;
    --color-success-dark: #065f46;
    
    --color-danger: #f43f5e;
    --color-danger-light: #ffe4e6;
    --color-danger-dark: #9f1239;
    
    --color-warning: #f59e0b;
    --color-warning-light: #fef3c7;
    --color-warning-dark: #92400e;
    
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;
    
    /* Размеры и отступы */
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 20px;
    
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Тени */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* ============================================
   БАЗОВЫЕ СТИЛИ
   ============================================ */

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--color-gray-100);
    color: var(--color-gray-800);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ============================================
   ЭКРАН АВТОРИЗАЦИИ
   ============================================ */

.login-screen {
    position: fixed;
    inset: 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    padding: var(--spacing-md);
}

.login-container {
    width: 100%;
    max-width: 420px;
}

.login-box {
    background-color: #ffffff;
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-xl);
}

.login-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.login-logo {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 1.75rem;
    margin: 0 auto var(--spacing-md);
}

.login-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-gray-800);
    margin-bottom: var(--spacing-xs);
}

.login-subtitle {
    font-size: 0.875rem;
    color: var(--color-gray-500);
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.login-error {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background-color: var(--color-danger-light);
    color: var(--color-danger-dark);
    border-radius: var(--border-radius-md);
    font-size: 0.875rem;
}

.login-error.hidden {
    display: none;
}

.btn-full {
    width: 100%;
    justify-content: center;
    padding: var(--spacing-md);
}

/* ============================================
   ШАПКА САЙТА
   ============================================ */

.header {
    background-color: #ffffff;
    border-bottom: 1px solid var(--color-gray-200);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 1.25rem;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-gray-800);
}

.header-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.user-name {
    font-size: 0.875rem;
    color: var(--color-gray-600);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.8125rem;
}

/* ============================================
   НАВИГАЦИЯ
   ============================================ */

.navigation {
    background-color: #ffffff;
    border-bottom: 1px solid var(--color-gray-200);
}

.nav-tabs {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) 0;
    overflow-x: auto;
}

.nav-tab {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    background-color: transparent;
    color: var(--color-gray-500);
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.nav-tab:hover {
    background-color: var(--color-gray-100);
    color: var(--color-primary);
}

.nav-tab.active {
    background-color: var(--color-primary-light);
    color: var(--color-primary-dark);
    font-weight: 600;
}

.nav-tab i {
    font-size: 1rem;
}

/* ============================================
   ОСНОВНОЙ КОНТЕНТ
   ============================================ */

.main-content {
    padding: var(--spacing-xl) 0;
    min-height: calc(100vh - 200px);
}

.content-section {
    display: none;
    animation: fadeIn 0.3s ease-out;
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section-header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-gray-800);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.section-title i {
    color: var(--color-primary);
}

.section-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* ============================================
   КНОПКИ
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: #ffffff;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-1px);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background-color: var(--color-gray-100);
    color: var(--color-gray-700);
}

.btn-secondary:hover {
    background-color: var(--color-gray-200);
}

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

.btn-danger:hover {
    background-color: #e11d48;
}

.btn-icon {
    padding: var(--spacing-xs);
    width: 32px;
    height: 32px;
    justify-content: center;
}

.btn-icon-edit {
    color: var(--color-primary);
    background-color: var(--color-primary-light);
}

.btn-icon-edit:hover {
    background-color: var(--color-primary);
    color: #ffffff;
}

.btn-icon-delete {
    color: var(--color-danger);
    background-color: var(--color-danger-light);
}

.btn-icon-delete:hover {
    background-color: var(--color-danger);
    color: #ffffff;
}

/* ============================================
   ФИЛЬТРЫ
   ============================================ */

.month-filter {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--border-radius-md);
    background-color: #ffffff;
    color: var(--color-gray-700);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.month-filter:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px var(--color-primary-light);
}

/* ============================================
   КАРТОЧКИ СТАТИСТИКИ
   ============================================ */

.stats-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background-color: #ffffff;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    box-shadow: var(--shadow-md);
    border-left-width: 4px;
    border-left-style: solid;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.stat-income {
    border-left-color: var(--color-success);
}

.stat-expense {
    border-left-color: var(--color-danger);
}

.stat-tax {
    border-left-color: var(--color-warning);
}

.stat-balance {
    border-left-color: var(--color-primary);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.stat-income .stat-icon {
    background-color: var(--color-success-light);
    color: var(--color-success-dark);
}

.stat-expense .stat-icon {
    background-color: var(--color-danger-light);
    color: var(--color-danger-dark);
}

.stat-tax .stat-icon {
    background-color: var(--color-warning-light);
    color: var(--color-warning-dark);
}

.stat-balance .stat-icon {
    background-color: var(--color-primary-light);
    color: var(--color-primary-dark);
}

.stat-info {
    flex: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-xs);
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
}

.stat-income .stat-value {
    color: var(--color-success);
}

.stat-expense .stat-value {
    color: var(--color-danger);
}

.stat-tax .stat-value {
    color: var(--color-warning);
}

.stat-balance .stat-value {
    color: var(--color-primary);
}

/* ============================================
   ТАБЛИЦЫ
   ============================================ */

.table-container {
    background-color: #ffffff;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    margin-bottom: var(--spacing-xl);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table thead {
    background-color: var(--color-gray-50);
}

.data-table th {
    padding: var(--spacing-md) var(--spacing-lg);
    text-align: left;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--color-gray-200);
}

.data-table td {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--color-gray-100);
    font-size: 0.875rem;
    color: var(--color-gray-700);
}

.data-table tbody tr:hover {
    background-color: var(--color-gray-50);
}

.data-table tfoot {
    background-color: var(--color-primary-light);
    font-weight: 600;
    color: var(--color-primary-dark);
}

.data-table tfoot td {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 2px solid var(--color-primary);
}

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

.text-center {
    text-align: center;
}

/* ============================================
   БЕЙДЖИ
   ============================================ */

.badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-income {
    background-color: var(--color-success-light);
    color: var(--color-success-dark);
}

.badge-expense {
    background-color: var(--color-danger-light);
    color: var(--color-danger-dark);
}

.badge-admin {
    background-color: var(--color-primary-light);
    color: var(--color-primary-dark);
}

.badge-user {
    background-color: var(--color-gray-200);
    color: var(--color-gray-700);
}

/* ============================================
   ГРАФИКИ
   ============================================ */

.grid-2-cols {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

@media (max-width: 1024px) {
    .grid-2-cols {
        grid-template-columns: 1fr;
    }
}

.chart-container,
.chart-container-full {
    background-color: #ffffff;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-xl);
}

.chart-wrapper {
    position: relative;
    height: 350px;
    width: 100%;
}

.chart-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.chart-title i {
    color: var(--color-primary);
}

/* ============================================
   МОДАЛЬНЫЕ ОКНА
   ============================================ */

.modal-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--spacing-md);
    animation: fadeIn 0.2s ease-out;
}

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

.modal {
    background-color: #ffffff;
    border-radius: var(--border-radius-xl);
    width: 100%;
    max-width: 480px;
    box-shadow: var(--shadow-xl);
    animation: slideUp 0.3s ease-out;
    max-height: 90vh;
    overflow-y: auto;
}

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

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

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

.modal-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-gray-800);
}

.modal-close {
    width: 32px;
    height: 32px;
    border: none;
    background-color: var(--color-gray-100);
    border-radius: var(--border-radius-md);
    color: var(--color-gray-500);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.modal-close:hover {
    background-color: var(--color-gray-200);
    color: var(--color-gray-700);
}

.modal-body {
    padding: var(--spacing-lg);
}

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

.modal-form {
    padding: var(--spacing-lg);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.form-label i {
    color: var(--color-primary);
}

.form-input {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--border-radius-md);
    font-size: 0.875rem;
    color: var(--color-gray-800);
    transition: all 0.2s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.toggle-group {
    display: flex;
    gap: var(--spacing-sm);
}

.toggle-btn {
    flex: 1;
    padding: var(--spacing-md);
    border: 1px solid var(--color-gray-200);
    background-color: #ffffff;
    border-radius: var(--border-radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-gray-600);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    transition: all 0.2s ease;
}

.toggle-btn:hover {
    background-color: var(--color-gray-50);
}

.toggle-btn.active[data-type="income"] {
    background-color: var(--color-success-light);
    border-color: var(--color-success);
    color: var(--color-success-dark);
}

.toggle-btn.active[data-type="expense"] {
    background-color: var(--color-danger-light);
    border-color: var(--color-danger);
    color: var(--color-danger-dark);
}

.form-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.form-actions .btn {
    flex: 1;
    justify-content: center;
    padding: var(--spacing-md);
}

/* ============================================
   НАСТРОЙКИ
   ============================================ */

.settings-info {
    margin-bottom: var(--spacing-xl);
}

.info-card {
    background-color: #ffffff;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    box-shadow: var(--shadow-md);
}

.info-icon {
    width: 48px;
    height: 48px;
    background-color: var(--color-primary-light);
    color: var(--color-primary-dark);
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.info-content h3 {
    font-size: 0.875rem;
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-xs);
}

.info-content p {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-gray-800);
}

.settings-section {
    background-color: #ffffff;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-xl);
}

.settings-section-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-gray-800);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.settings-section-title i {
    color: var(--color-primary);
}

.settings-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

/* ============================================
   ПОДВАЛ
   ============================================ */

.footer {
    background-color: #ffffff;
    border-top: 1px solid var(--color-gray-200);
    padding: var(--spacing-lg) 0;
    margin-top: auto;
}

.footer-text {
    text-align: center;
    font-size: 0.875rem;
    color: var(--color-gray-500);
}

.footer-text i {
    margin-right: var(--spacing-xs);
}

/* ============================================
   АДАПТИВНОСТЬ
   ============================================ */

@media (max-width: 768px) {
    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .section-actions {
        width: 100%;
    }
    
    .section-actions .month-filter,
    .section-actions .btn {
        flex: 1;
    }
    
    .stats-cards {
        grid-template-columns: 1fr;
    }
    
    .stat-card {
        padding: var(--spacing-md);
    }
    
    .data-table th,
    .data-table td {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.8125rem;
    }
    
    .nav-tab span {
        display: none;
    }
    
    .nav-tab {
        padding: var(--spacing-sm);
    }
    
    .chart-wrapper {
        height: 280px;
    }
    
    .header-user .user-name span {
        display: none;
    }
}

/* ============================================
   УТИЛИТЫ
   ============================================ */

.hidden {
    display: none !important;
}

.text-success {
    color: var(--color-success);
}

.text-danger {
    color: var(--color-danger);
}

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

/* ============================================
   ИНДИКАТОР ЗАГРУЗКИ
   ============================================ */

.loading {
    opacity: 0.5;
    pointer-events: none;
    position: relative;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 40px;
    height: 40px;
    margin: -20px 0 0 -20px;
    border: 4px solid var(--color-gray-200);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* ============================================
   УВЕДОМЛЕНИЯ
   ============================================ */

.notification {
    position: fixed;
    top: 80px;
    right: 20px;
    padding: 1rem 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    z-index: 2000;
    animation: slideIn 0.3s ease-out;
}

.notification-success {
    background-color: var(--color-success-light);
    color: var(--color-success-dark);
}

.notification-error {
    background-color: var(--color-danger-light);
    color: var(--color-danger-dark);
}

.notification-info {
    background-color: var(--color-primary-light);
    color: var(--color-primary-dark);
}

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

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

/* ============================================
   ДЕЙСТВИЯ В ТАБЛИЦЕ
   ============================================ */

.table-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
}

.table-actions .btn {
    padding: var(--spacing-xs);
    width: 32px;
    height: 32px;
}