body {
    font-family: Helvetica, Arial, sans-serif;
    background: #f0f2f5;
    margin: 0;
    padding: 20px;
}

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

.card {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    padding: 20px;
    margin-bottom: 20px;
}

textarea, input[type="text"], input[type="number"] {
    width: 100%;
    padding: 12px;
    margin: 8px 0;
    border: 1px solid #dddfe2;
    border-radius: 4px;
    box-sizing: border-box;
    font-size: 15px;
}

input[type="text"]:focus, textarea:focus, input[type="number"]:focus {
    border-color: #1b74e4;
    outline: none;
}

.button {
    background: #1b74e4;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
}

.button:hover {
    background: #166fe5;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 8px;
    overflow: hidden;
}

th, td {
    padding: 12px;
    text-align: left;
}

th {
    background: #f5f6f5;
    font-weight: 600;
}

tr:hover {
    background: #f5f5f5;
}

a {
    color: #1b74e4;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

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

.pagination a {
    padding: 8px 12px;
    margin: 0 4px;
    border-radius: 4px;
}
.pagination a:hover {
    background: #e7f3ff;
}
/* Thêm vào style.css */
.register-card {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    padding: 20px;
    width: 100%;
    max-width: 400px;
    margin: 40px auto;
}

.register-card h1 {
    color: #1c1e21;
    font-size: 32px;
    font-weight: 700;
    margin: 0 0 10px;
}

.register-card p {
    color: #606770;
    font-size: 15px;
    margin: 0 0 20px;
}

.form-group {
    margin-bottom: 15px;
}

.register-form input {
    width: 100%;
    padding: 14px 16px;
    font-size: 17px;
    border: 1px solid #dddfe2;
    border-radius: 6px;
    box-sizing: border-box;
}

.register-form input:focus {
    border-color: #1b74e4;
    box-shadow: 0 0 0 2px #e7f3ff;
}

.register-form .button {
    width: 100%;
    padding: 12px;
    font-size: 18px;
    margin-top: 10px;
}

.login-link {
    text-align: center;
    margin-top: 20px;
    color: #606770;
    font-size: 14px;
}

.login-link a {
    color: #1b74e4;
    font-weight: 600;
}

@media (max-width: 480px) {
    .register-card {
        margin: 20px;
        padding: 15px;
    }
    
    .register-card h1 {
        font-size: 24px;
    }
    
    .register-form input {
        padding: 12px 14px;
        font-size: 15px;
    }
    
    .register-form .button {
        padding: 10px;
        font-size: 16px;
    }
}