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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans KR', sans-serif;
    background-color: #f5f5f5;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.logo {
    font-size: 22px;
    font-weight: 700;
    color: #999;
    letter-spacing: 1px;
    margin-bottom: 24px;
}

.register-box {
    background: #fff;
    border-radius: 12px;
    padding: 36px;
    width: 100%;
    max-width: 440px;
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.08);
}

.box-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.box-header h1 {
    font-size: 18px;
    font-weight: 700;
    color: #1a1a1a;
}

.step-badge {
    font-size: 13px;
    color: #4f6ef7;
    font-weight: 500;
}

.notice {
    font-size: 13px;
    color: #4f6ef7;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 8px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: #444;
    margin-bottom: 6px;
}

.form-group input {
    width: 100%;
    height: 46px;
    padding: 0 14px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    color: #1a1a1a;
    outline: none;
    transition: border-color 0.15s;
}

.form-group input:focus {
    border-color: #4f6ef7;
}

.form-group input.is-error {
    border-color: #e53e3e;
}

.field-error {
    font-size: 12px;
    color: #e53e3e;
    margin-top: 6px;
    display: none;
}

.field-error.show {
    display: block;
}

.error-link {
    color: #e53e3e;
    font-weight: 600;
    text-decoration: underline;
    margin-left: 4px;
}

.hints {
    list-style: none;
    margin: 16px 0 24px;
}

.hints li {
    font-size: 12px;
    color: #888;
    padding-left: 12px;
    position: relative;
    line-height: 1.8;
}

.hints li::before {
    content: '·';
    position: absolute;
    left: 0;
}

.btn-submit {
    width: 100%;
    height: 50px;
    background: #c9c9c9;
    color: #1a1a1a;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.15s;
}

/* .btn-submit:hover {
    background: #9490b8;
} */

.btn-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.page-footer {
    margin-top: 20px;
    font-size: 13px;
    color: #888;
}

.page-footer a {
    color: #4f6ef7;
    text-decoration: none;
}

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