/* 회원가입 페이지 스타일 */

:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #f8f9fa;
    --text-dark: #1e293b;
    --text-gray: #64748b;
    --error-color: #ef4444;
    --success-color: #10b981;
    --border-color: #e2e8f0;
    --radius: 0.5rem;
}

.signup-container {
    max-width: 50rem;
    margin: 0 auto;
    padding: 2.5rem 1.25rem;
}

/* 헤더 */
.signup-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.signup-logo {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary-color);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}
.signup-logo img {
    height: 3rem;
    width: auto;
}

.signup-subtitle {
    margin-top: 0.625rem;
    color: var(--text-gray);
}

/* 폼 컨테이너 */
.signup-form {
    background: #ffffff;
    padding: 2.5rem;
    border-radius: 1rem;
    box-shadow: 0 0.25rem 0.375rem -0.0625rem rgba(0, 0, 0, 0.1);
}

.form-section {
    margin-bottom: 2.5rem;
    padding-bottom: 1.875rem;
    border-bottom: 0.0625rem solid var(--border-color);
}

.form-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.section-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* 입력 필드 스타일 */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.required {
    color: var(--error-color);
    margin-left: 0.25rem;
}

.input-wrapper {
    position: relative;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 0.0625rem solid var(--border-color);
    border-radius: var(--radius);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.1875rem rgba(37, 99, 235, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 7.5rem;
}

/* 중복확인 버튼 레이아웃 */
.input-with-btn {
    display: flex;
    gap: 0.625rem;
}

.check-btn {
    padding: 0 1.25rem;
    background-color: var(--text-dark);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    font-weight: 600;
    white-space: nowrap;
    transition: background-color 0.2s;
}

.check-btn:hover {
    background-color: #334155;
}

.check-btn:disabled {
    background-color: #9ca3af;
    cursor: not-allowed;
}

/* 에러/성공 메시지 */
.validation-msg {
    font-size: 0.85rem;
    margin-top: 0.375rem;
    display: none;
}

.validation-msg.error {
    color: var(--error-color);
    display: block;
}

.validation-msg.success {
    color: var(--success-color);
    display: block;
}

/* 라디오/체크박스 그리드 */
.radio-group,
.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
}

.check-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.check-item input[type="radio"],
.check-item input[type="checkbox"] {
    width: 1.125rem;
    height: 1.125rem;
    accent-color: var(--primary-color);
    cursor: pointer;
}

.check-item label {
    cursor: pointer;
    font-size: 0.95rem;
}

/* 약관 동의 */
.terms-box {
    background-color: var(--secondary-color);
    padding: 1.25rem;
    border-radius: var(--radius);
}

/* 제출 버튼 */
.submit-btn {
    width: 100%;
    padding: 1rem;
    background-color: var(--primary-color);
    color: #fff;
    font-size: 1.1rem;
    font-weight: 700;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: background 0.3s;
    margin-top: 1.25rem;
}

.submit-btn:hover {
    background-color: var(--primary-dark);
}

.submit-btn:disabled {
    background-color: #9ca3af;
    cursor: not-allowed;
}

/* 반응형 */
@media (max-width: 48rem) {
    .signup-form {
        padding: 1.5rem;
    }

    .grid-2,
    .grid-3 {
        grid-template-columns: 1fr;
    }

    .input-with-btn {
        flex-direction: column;
    }

    .check-btn {
        width: 100%;
        padding: 0.75rem;
    }

    .signup-container {
        padding: 1.5rem 1rem;
    }
}