:root {
    --primary: #2c3e50;
    --secondary: #3498db;
    --income: #2ecc71;
    --expense: #e74c3c;
    --light: #ecf0f1;
    --dark: #34495e;
    --gray: #7f8c8d;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background: linear-gradient(135deg, #1a2a6c, #b21f1f, #1a2a6c);
    color: var(--dark);
    padding: 20px;
    min-height: 100vh;
}

.container {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    overflow: hidden;
    max-width: 1200px;
    margin: 0 auto;
}

.form-container {
    max-width: 600px;
    padding: 30px;
}

header {
    background: var(--primary);
    color: white;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

header h1 {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 1.8rem;
}

.summary {
    display: flex;
    gap: 20px;
    margin-top: 15px;
    width: 100%;
}

.summary-item {
    flex: 1;
    background: white;
    border-radius: 10px;
    padding: 15px;
    text-align: center;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
}

.summary-item.income {
    border-top: 5px solid var(--income);
}

.summary-item.expense {
    border-top: 5px solid var(--expense);
}

.summary-item.balance {
    border-top: 5px solid var(--secondary);
}

.summary-item span {
    display: block;
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 5px;
}

.summary-item strong {
    font-size: 1.5rem;
    display: block;
}

.controls {
    padding: 20px;
    background: var(--light);
    border-bottom: 1px solid #ddd;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-size: 1rem;
}

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

.add-btn:hover {
    background: #2980b9;
}

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

.save-btn {
    background: var(--income);
    color: white;
    padding: 12px 25px;
    font-size: 1.1rem;
}

.back-btn:hover {
    background: #666;
}

section {
    padding: 20px;
}

h2 {
    margin-bottom: 20px;
    color: var(--primary);
    border-bottom: 2px solid var(--light);
    padding-bottom: 10px;
}

.category-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 15px;
    margin-bottom: 30px;
}

.category-item {
    background: white;
    border-radius: 10px;
    padding: 15px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-left: 5px solid var(--expense);
}

.category-item span.amount {
    font-weight: bold;
    font-size: 1.2rem;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

table th, table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

table th {
    background: var(--primary);
    color: white;
    font-weight: 500;
}

table tbody tr:hover {
    background: rgba(52, 152, 219, 0.05);
}

table .income {
    color: var(--income);
    font-weight: bold;
}

table .expense {
    color: var(--expense);
    font-weight: bold;
}

.actions {
    display: flex;
    gap: 10px;
}

.btn.edit-btn {
    background: #f39c12;
    color: white;
    padding: 8px 12px;
}

.btn.delete-btn {
    background: var(--expense);
    color: white;
    padding: 8px 12px;
}

.btn.edit-btn:hover {
    background: #e67e22;
}

.btn.delete-btn:hover {
    background: #c0392b;
}

.empty {
    text-align: center;
    padding: 20px;
    color: var(--gray);
    font-style: italic;
}

footer {
    text-align: center;
    padding: 20px;
    color: var(--gray);
    font-size: 0.9rem;
    border-top: 1px solid #eee;
}

.tip {
    font-style: italic;
    margin-top: 10px;
    color: var(--primary);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark);
}

.form-group input, 
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
}

.form-group textarea {
    min-height: 100px;
    resize: vertical;
}

.radio-group {
    display: flex;
    gap: 15px;
}

.radio-label {
    display: flex;
    align-items: center;
    cursor: pointer;
}

.radio-custom {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 50px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.radio-custom.income {
    background: rgba(46, 204, 113, 0.2);
    color: var(--income);
}

.radio-custom.expense {
    background: rgba(231, 76, 60, 0.2);
    color: var(--expense);
}

input[type="radio"] {
    display: none;
}

input[type="radio"]:checked + .radio-custom.income {
    background: var(--income);
    color: white;
}

input[type="radio"]:checked + .radio-custom.expense {
    background: var(--expense);
    color: white;
}

/* Адаптивность */
@media (max-width: 768px) {
    .summary {
        flex-direction: column;
    }
    
    table {
        display: block;
        overflow-x: auto;
    }
    
    .category-list {
        grid-template-columns: 1fr;
    }
}

/* Стили для аутентификации */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #1a2a6c, #b21f1f, #1a2a6c);
}

.auth-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    padding: 30px;
    width: 100%;
    max-width: 500px;
}

.auth-card h1 {
    text-align: center;
    margin-bottom: 30px;
    color: #2c3e50;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.auth-links {
    margin-top: 20px;
    text-align: center;
}

.auth-links a {
    color: #3498db;
    text-decoration: none;
}

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

.login-btn {
    background: #3498db;
    color: white;
    width: 100%;
    padding: 12px;
    font-size: 1.1rem;
}

.register-btn {
    background: #2ecc71;
    color: white;
    width: 100%;
    padding: 12px;
    font-size: 1.1rem;
}

.remember {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Меню пользователя */
.user-menu {
    position: absolute;
    top: 20px;
    right: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    color: white;
    font-weight: 500;
}

.dropbtn {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: none;
    border-radius: 50px;
    padding: 8px 15px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 1rem;
}

.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-content {
    display: none;
    position: absolute;
    right: 0;
    background: white;
    min-width: 160px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
    z-index: 1;
    border-radius: 5px;
    overflow: hidden;
}

.dropdown-content a {
    color: #2c3e50;
    padding: 12px 16px;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
}

.dropdown-content a:hover {
    background: #f5f5f5;
}

.dropdown:hover .dropdown-content {
    display: block;
}