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

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    background: #f5f5f5;
    color: #333;
}

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

header {
    background: #2c3e50;
    color: white;
    padding: 20px;
    border-radius: 5px;
    margin-bottom: 20px;
}

header h1 {
    font-size: 1.8em;
    margin-bottom: 10px;
}

main {
    display: grid;
    gap: 20px;
}

.info-box {
    background: white;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.action-card {
    background: white;
    padding: 25px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    text-align: center;
}

.action-card h2 {
    margin-bottom: 15px;
    color: #2c3e50;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    background: #3498db;
    color: white;
    text-decoration: none;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    font-size: 16px;
    transition: background 0.3s;
    margin-top: 15px;
}

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

.btn-buy {
    background: #27ae60;
}

.btn-buy:hover {
    background: #219653;
}

.btn-sell {
    background: #e74c3c;
}

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

.btn-disabled {
    background: #95a5a6 !important;
    cursor: not-allowed;
}

.check-order {
    background: white;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.check-order form {
    display: flex;
    gap: 10px;
    margin-top: 10px;
}

.check-order input {
    flex: 1;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.btn-check {
    background: #9b59b6;
}

.btn-check:hover {
    background: #8e44ad;
}

footer {
    margin-top: 30px;
    text-align: center;
    color: #7f8c8d;
    font-size: 0.9em;
}

/* Сообщения */
.flash-message {
    padding: 15px;
    margin: 15px 0;
    border-radius: 4px;
    border-left: 5px solid;
}

.flash-success {
    background: #d4edda;
    border-color: #28a745;
    color: #155724;
}

.flash-error {
    background: #f8d7da;
    border-color: #dc3545;
    color: #721c24;
}

.flash-warning {
    background: #fff3cd;
    border-color: #ffc107;
    color: #856404;
}

.flash-info {
    background: #d1ecf1;
    border-color: #17a2b8;
    color: #0c5460;
}

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

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3498db;
}

/* Адаптивность */
@media (max-width: 768px) {
    .actions {
        grid-template-columns: 1fr;
    }
    
    .check-order form {
        flex-direction: column;
    }
    
    .container {
        padding: 10px;
    }
}