학생 계정 관리 타일 크기/폰트를 실시간 출석 확인 목록과 통일

계정 추가/엑셀 등록 칸과 학생 목록 타일 모두 "실시간 출석 확인"
목록의 타일 규격(220x148, 이름15/상태11.5/칩11 폰트)에 맞춰
동일한 비율로 재조정.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

lib/ui/teacher_student_management_page.dart

@@ -6,6 +6,10 @@ import 'package:flutter/material.dart';
 import '../function/excel_file_picker.dart';
 import '../function/teacher_student_management_controller.dart';
 
+// 📐 "실시간 출석 확인" 목록(teacher_attendance_page.dart)의 타일 규격과 동일하게 맞춘다.
+const double kAttendanceTileWidth = 220;
+const double kAttendanceTileHeight = 148;
+
 // -----------------------------------------------------------------------------
 // 👥 [서브 화면 2] 학생 계정 관리 란 (추가 양식 폼 + 강제 삭제 다이얼로그 완전 내장)
 // -----------------------------------------------------------------------------
@@ -545,28 +549,37 @@ class _TeacherStudentManagementPageState
     final bool needsReset = student['device'] == '초기화 필요';
 
     return Container(
-      padding: const EdgeInsets.all(8),
+      padding: const EdgeInsets.all(14),
       decoration: BoxDecoration(
         color: Colors.white,
-        borderRadius: BorderRadius.circular(14),
+        borderRadius: BorderRadius.circular(20),
         boxShadow: [
-          BoxShadow(color: Colors.black.withValues(alpha: 0.04), blurRadius: 8),
+          BoxShadow(
+            color: Colors.black.withValues(alpha: 0.03),
+            blurRadius: 12,
+            offset: const Offset(0, 4),
+          ),
         ],
       ),
       child: Column(
         mainAxisAlignment: MainAxisAlignment.center,
         crossAxisAlignment: CrossAxisAlignment.center,
         children: [
-          CircleAvatar(
+          Container(
-            radius: 20,
+            padding: const EdgeInsets.all(8),
-            backgroundColor: needsReset ? Colors.red[50] : Colors.blue[50],
+            decoration: BoxDecoration(
+              color: (needsReset ? Colors.red : Colors.blue).withValues(
+                alpha: 0.1,
+              ),
+              shape: BoxShape.circle,
+            ),
             child: Icon(
               needsReset ? Icons.lock_reset : Icons.person,
-              size: 20,
+              size: 18,
               color: needsReset ? Colors.red : Colors.blue,
             ),
           ),
-          const SizedBox(height: 6),
+          const SizedBox(height: 8),
           Text(
             '$studentName ($studentId)',
             textAlign: TextAlign.center,
@@ -574,13 +587,13 @@ class _TeacherStudentManagementPageState
             overflow: TextOverflow.ellipsis,
             style: const TextStyle(fontWeight: FontWeight.bold, fontSize: 15),
           ),
-          const SizedBox(height: 2),
+          const SizedBox(height: 4),
           Text(
             needsReset ? '초기화 대기중' : '정상 등록',
             textAlign: TextAlign.center,
             style: TextStyle(
-              fontSize: 12,
+              fontSize: 11.5,
-              color: needsReset ? Colors.red : Colors.grey,
+              color: needsReset ? Colors.red[700] : Colors.grey[600],
               fontWeight: needsReset ? FontWeight.bold : FontWeight.normal,
             ),
           ),
@@ -597,7 +610,7 @@ class _TeacherStudentManagementPageState
                   labelPadding: const EdgeInsets.symmetric(horizontal: 6),
                   label: Text(
                     grade != null ? '$grade학년' : '미배정',
-                    style: const TextStyle(fontSize: 12),
+                    style: const TextStyle(fontSize: 11),
                   ),
                   onPressed: () => _showGradeMenu(
                     chipContext,
@@ -611,22 +624,22 @@ class _TeacherStudentManagementPageState
                 icon: const Icon(
                   Icons.lock_reset,
                   color: Colors.purple,
-                  size: 20,
+                  size: 18,
                 ),
                 tooltip: '기기 리셋',
                 padding: EdgeInsets.zero,
-                constraints: const BoxConstraints(minWidth: 30, minHeight: 30),
+                constraints: const BoxConstraints(minWidth: 28, minHeight: 28),
                 onPressed: () => _confirmResetDevice(studentId, studentName),
               ),
               IconButton(
                 icon: const Icon(
                   Icons.delete_forever_rounded,
                   color: Colors.redAccent,
-                  size: 20,
+                  size: 18,
                 ),
                 tooltip: '계정 영구 삭제',
                 padding: EdgeInsets.zero,
-                constraints: const BoxConstraints(minWidth: 30, minHeight: 30),
+                constraints: const BoxConstraints(minWidth: 28, minHeight: 28),
                 onPressed: () => _confirmDeleteStudent(studentId, studentName),
               ),
             ],
@@ -656,14 +669,10 @@ class _TeacherStudentManagementPageState
             padding: const EdgeInsets.all(24.0),
             child: LayoutBuilder(
               builder: (context, constraints) {
-                // 🖥️ 웹(넓은 화면)은 계정 추가/엑셀 등록을 정사각형 2칸으로 나란히, 폰은 기존처럼 세로로 쌓는다.
+                // 🖥️ 웹(넓은 화면)은 계정 추가/엑셀 등록을 나란히, 폰은 기존처럼 세로로 쌓는다.
+                // 📐 크기/폰트 비율은 "실시간 출석 확인" 목록의 타일(220x148)과 동일하게 맞춘다.
                 final bool isWide = constraints.maxWidth >= 800;
                 final double listWidth = constraints.maxWidth;
-                // 📐 학생 목록 타일과 동일한 크기를 계정 추가/엑셀 등록 칸에도 사용한다.
-                final double tileSize =
-                    ((listWidth - (isWide ? 7 : 3) * 10) / (isWide ? 8 : 4)) *
-                    1.5;
-                final double formSquareSize = tileSize;
 
                 final Widget addBoxColumn = Column(
                   crossAxisAlignment: CrossAxisAlignment.start,
@@ -671,8 +680,8 @@ class _TeacherStudentManagementPageState
                     _sectionTitle('신규 학생 계정 추가'),
                     const SizedBox(height: 16),
                     SizedBox(
-                      width: isWide ? formSquareSize : double.infinity,
+                      width: isWide ? kAttendanceTileWidth : double.infinity,
-                      height: isWide ? formSquareSize : null,
+                      height: isWide ? kAttendanceTileHeight : null,
                       child: _buildAddAccountBox(),
                     ),
                   ],
@@ -684,8 +693,8 @@ class _TeacherStudentManagementPageState
                     _sectionTitle('엑셀로 한번에 추가 (신입생 등)'),
                     const SizedBox(height: 16),
                     SizedBox(
-                      width: isWide ? formSquareSize : double.infinity,
+                      width: isWide ? kAttendanceTileWidth : double.infinity,
-                      height: isWide ? formSquareSize : 240,
+                      height: isWide ? kAttendanceTileHeight : 240,
                       child: _buildExcelBox(),
                     ),
                   ],
@@ -762,11 +771,12 @@ class _TeacherStudentManagementPageState
                                   shrinkWrap: true,
                                   physics: const NeverScrollableScrollPhysics(),
                                   gridDelegate:
-                                      SliverGridDelegateWithMaxCrossAxisExtent(
+                                      const SliverGridDelegateWithMaxCrossAxisExtent(
-                                        maxCrossAxisExtent: tileSize,
+                                        maxCrossAxisExtent:
-                                        crossAxisSpacing: 10,
+                                            kAttendanceTileWidth,
-                                        mainAxisSpacing: 10,
+                                        mainAxisExtent: kAttendanceTileHeight,
-                                        childAspectRatio: 1,
+                                        crossAxisSpacing: 12,
+                                        mainAxisSpacing: 12,
                                       ),
                                   itemCount: _controller.students.length,
                                   itemBuilder: (context, index) =>