2FA 팝업 UI 개선 및 기능 추가:

- 디자인 가이드 기반 레이아웃/스타일 재정의(SASS)
- 인증 흐름 개선: 타이머/프로그레스바/버튼 상태 업데이트(JS)
- 사용자 친화적 안내 메시지 및 입력 상태 검증 추가

src/main/resources/static/css/main.css

@@ -7565,123 +7565,330 @@ button.djb-comment-submit:disabled {
   color: #888;
 }
 
-#tfaModal .modal-title {
+.tfa-card {
+  position: relative;
+  width: 520px;
+  max-width: 100%;
+  padding: 0;
+  border: 1px solid #DCE2ED;
+  border-radius: 4px;
+  background: #fff;
+  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
+  color: #0D0E11;
+  letter-spacing: -0.02em;
+}
+
+.tfa-close {
+  position: absolute;
+  top: 16px;
+  right: 16px;
+  width: 28px;
+  height: 28px;
+  padding: 0;
+  border: 0;
+  background: none;
+  color: #7F8A95;
+  cursor: pointer;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  border-radius: 4px;
+  transition: background 0.12s ease, color 0.12s ease;
+}
+.tfa-close:hover {
+  background: #F4F5F9;
+  color: #0D0E11;
+}
+
+.tfa-head {
+  padding: 24px 32px;
+  padding-right: 60px;
+  border-bottom: 1px solid #DCE2ED;
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 16px;
+}
+.tfa-head .tfa-head-title {
+  font-size: 27px;
+  font-weight: 700;
+  line-height: 1.35;
+  color: #0D0E11;
+}
+.tfa-head .tfa-head-brand {
+  font-size: 14px;
+  font-weight: 500;
+  color: #7F8A95;
+}
+
+.tfa-body {
+  padding: 28px 32px 32px;
+}
+
+.tfa-step {
   display: flex;
   align-items: center;
   gap: 8px;
+  margin-bottom: 12px;
 }
-
+.tfa-step .tfa-step-num {
-.tfa-subtitle {
+  display: inline-flex;
-  text-align: center;
+  align-items: center;
-  color: #64748B;
+  justify-content: center;
-  margin-bottom: 24px;
+  width: 20px;
-  font-size: 14px;
+  height: 20px;
+  border-radius: 100px;
+  background: #BDC7CF;
+  color: #fff;
+  font-size: 11px;
+  font-weight: 500;
+  flex: none;
+}
+.tfa-step .tfa-step-num.is-active {
+  background: #4685EF;
+}
+.tfa-step .tfa-step-text {
+  font-size: 15px;
+  font-weight: 500;
+  color: #7F8A95;
+}
+.tfa-step .tfa-step-text.is-active {
+  color: #0D0E11;
 }
 
 .tfa-segment {
-  display: flex;
+  display: grid;
+  grid-template-columns: 1fr 1fr;
   gap: 8px;
-  margin-bottom: 20px;
+  margin-bottom: 28px;
 }
 .tfa-segment .tfa-seg-btn {
-  flex: 1;
+  padding: 14px 16px;
-  display: flex;
+  text-align: left;
-  flex-direction: column;
-  align-items: center;
-  gap: 4px;
-  padding: 12px 8px;
-  border: 1px solid #CBD5E1;
-  border-radius: 8px;
-  background: #F8FAFC;
-  color: #475569;
-  font-size: 14px;
-  font-weight: 600;
   cursor: pointer;
-  transition: all 0.15s ease;
+  border: 1px solid #DCE2ED;
+  border-radius: 4px;
+  background: #fff;
+  transition: border-color 0.12s ease, background 0.12s ease;
+}
+.tfa-segment .tfa-seg-btn .tfa-seg-label {
+  display: block;
+  font-size: 15px;
+  font-weight: 500;
+  color: #0D0E11;
+}
+.tfa-segment .tfa-seg-btn .tfa-seg-masked {
+  display: block;
+  font-size: 14px;
+  font-weight: 300;
+  color: #7F8A95;
+  margin-top: 2px;
 }
 .tfa-segment .tfa-seg-btn:hover {
-  border-color: #0049B4;
+  border-color: #4685EF;
 }
 .tfa-segment .tfa-seg-btn.is-active {
-  background: #0049B4;
+  border: 1.5px solid #4685EF;
-  border-color: #0049B4;
+  background: #ECF0FA;
-  color: #FFFFFF;
 }
-.tfa-segment .tfa-seg-btn.is-active .tfa-seg-masked {
+.tfa-segment .tfa-seg-btn.is-active .tfa-seg-label {
-  color: rgba(255, 255, 255, 0.85);
+  color: #2A69DE;
-}
-.tfa-segment .tfa-seg-masked {
-  font-size: 12px;
-  font-weight: 400;
-  color: #94A3B8;
 }
 
-.tfa-btn-block {
+.tfa-hint {
+  border: 1px solid #DCE2ED;
+  border-radius: 4px;
+  background: #F4F5F9;
+  padding: 16px;
+  font-size: 14px;
+  font-weight: 300;
+  line-height: 1.5;
+  color: #7F8A95;
+  margin-bottom: 20px;
+}
+
+.tfa-cta {
   width: 100%;
-  margin-top: 8px;
+  height: 56px;
+  border: 0;
+  border-radius: 4px;
+  background: #4685EF;
+  color: #fff;
+  cursor: pointer;
+  font-size: 16px;
+  font-weight: 500;
+  letter-spacing: -0.02em;
+  transition: background 0.12s ease;
+}
+.tfa-cta:hover {
+  background: #2A69DE;
+}
+.tfa-cta:disabled {
+  background: #F4F5F9;
+  color: #BDC7CF;
+  cursor: default;
 }
 
 .tfa-code-row {
-  position: relative;
+  display: flex;
+  gap: 8px;
+  margin-bottom: 8px;
+}
+.tfa-code-row .tfa-code-input-wrap {
+  flex: 1;
   display: flex;
   align-items: center;
+  height: 56px;
+  padding: 0 14px;
+  border: 1px solid #BDC7CF;
+  border-radius: 4px;
+  background: #fff;
+  transition: border-color 0.12s ease;
+}
+.tfa-code-row .tfa-code-input-wrap:focus-within {
+  border-color: #4685EF;
 }
 .tfa-code-row .tfa-code-input {
-  width: 100%;
+  flex: 1;
-  padding: 14px 64px 14px 16px;
+  min-width: 0;
-  border: 1px solid #CBD5E1;
+  border: 0;
-  border-radius: 8px;
-  font-size: 15px;
-  letter-spacing: 2px;
-}
-.tfa-code-row .tfa-code-input:focus {
   outline: none;
-  border-color: #0049B4;
+  background: transparent;
+  font-size: 16px;
+  font-weight: 500;
+  letter-spacing: 0.02em;
+  color: #0D0E11;
 }
-.tfa-code-row .tfa-timer {
+.tfa-code-row .tfa-code-input::placeholder {
-  position: absolute;
+  color: #BDC7CF;
-  right: 16px;
+  font-weight: 400;
-  color: #E11D48;
+}
+.tfa-code-row .tfa-resend {
+  flex: none;
+  height: 56px;
+  padding: 0 18px;
+  border: 1px solid #7F8A95;
+  border-radius: 4px;
+  background: #fff;
+  color: #0D0E11;
+  cursor: pointer;
+  font-size: 15px;
+  font-weight: 500;
+  white-space: nowrap;
+  transition: background 0.12s ease;
+}
+.tfa-code-row .tfa-resend:hover {
+  background: #F4F5F9;
+}
+.tfa-code-row .tfa-resend:disabled {
+  opacity: 0.5;
+  cursor: default;
+}
+
+.tfa-timer-row {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 12px;
+  border: 1px solid #DCE2ED;
+  border-radius: 4px;
+  background: #F4F5F9;
+  padding: 12px 14px;
+  margin-bottom: 12px;
+}
+.tfa-timer-row .tfa-timer-label {
   font-size: 14px;
-  font-weight: 600;
+  font-weight: 300;
+  color: #7F8A95;
+}
+.tfa-timer-row .tfa-timer-clock {
+  display: flex;
+  align-items: baseline;
+  gap: 6px;
+}
+.tfa-timer-row .tfa-timer {
+  font-size: 20px;
+  font-weight: 500;
+  letter-spacing: 0.02em;
+  color: #4685EF;
   font-variant-numeric: tabular-nums;
 }
+.tfa-timer-row .tfa-timer.is-warning {
+  color: #F4253C;
+}
+.tfa-timer-row .tfa-timer.is-expired {
+  color: #7F8A95;
+}
+.tfa-timer-row .tfa-timer-total {
+  font-size: 13px;
+  font-weight: 300;
+  color: #7F8A95;
+}
+
+.tfa-progress {
+  height: 3px;
+  background: #DCE2ED;
+  border-radius: 2px;
+  overflow: hidden;
+  margin-bottom: 12px;
+}
+.tfa-progress .tfa-progress-bar {
+  height: 100%;
+  width: 100%;
+  background: #4685EF;
+  transition: width 1s linear;
+}
+.tfa-progress .tfa-progress-bar.is-warning {
+  background: #F4253C;
+}
 
 .tfa-message {
-  min-height: 18px;
+  min-height: 21px;
-  margin-top: 8px;
+  margin: 0 0 20px;
-  font-size: 13px;
+  font-size: 14px;
-  color: #64748B;
+  font-weight: 300;
+  line-height: 1.5;
+  color: #7F8A95;
 }
 .tfa-message.is-error {
-  color: #E11D48;
+  color: #F4253C;
 }
 
 .tfa-test-notice {
-  margin-top: 8px;
+  margin: 0 0 16px;
   padding: 10px 14px;
   border: 1px dashed #F59E0B;
-  border-radius: 8px;
+  border-radius: 4px;
   background: #FFFBEB;
   color: #B45309;
   font-size: 13px;
   text-align: center;
 }
 
-.tfa-actions {
+.tfa-foot {
-  display: flex;
+  margin-top: 24px;
-  justify-content: flex-end;
+  padding-top: 16px;
-  margin: 8px 0;
+  border-top: 1px solid #DFDFDF;
-}
+  font-size: 14px;
-.tfa-actions .tfa-resend {
+  font-weight: 300;
-  background: none;
+  line-height: 1.5;
-  border: none;
+  color: #7F8A95;
-  color: #0049B4;
-  font-size: 13px;
-  cursor: pointer;
-  text-decoration: underline;
 }
 
+@media (max-width: 768px) {
+  .tfa-head {
+    padding: 20px 22px;
+  }
+  .tfa-head .tfa-head-title {
+    font-size: 23px;
+  }
+  .tfa-body {
+    padding: 22px 22px 26px;
+  }
+  .tfa-segment {
+    margin-bottom: 22px;
+  }
+}
 .hero-carousel-section {
   position: relative;
   width: 100%;

src/main/resources/static/js/popup/two-factor-auth.js

@@ -90,13 +90,15 @@
 
       var seg = document.getElementById('tfaSegment');
       seg.innerHTML = '';
+      self._maskedByType = {};
       var channels = info.channels || [];
       channels.forEach(function (ch, idx) {
+        self._maskedByType[ch.type] = ch.masked;
         var btn = document.createElement('button');
         btn.type = 'button';
         btn.className = 'tfa-seg-btn' + (idx === 0 ? ' is-active' : '');
         btn.setAttribute('data-channel', ch.type);
-        btn.innerHTML = (ch.type === 'EMAIL' ? '이메일 인증' : '전화번호 인증')
+        btn.innerHTML = '<span class="tfa-seg-label">' + (ch.type === 'EMAIL' ? '이메일' : '휴대폰 문자') + '</span>'
           + '<span class="tfa-seg-masked">' + ch.masked + '</span>';
         btn.addEventListener('click', function () { self._selectChannel(ch.type); });
         seg.appendChild(btn);
@@ -106,8 +108,11 @@
       // 초기 상태: 발송 단계
       document.getElementById('tfaSendStep').style.display = '';
       document.getElementById('tfaVerifyStep').style.display = 'none';
-      document.getElementById('tfaMessage').textContent = '';
+      self._setMessage('', false);
       document.getElementById('tfaCodeInput').value = '';
+      document.getElementById('tfaVerifyButton').disabled = true;
+      self._setStep2Active(false);
+      self._resetTimerUi();
       var notice = document.getElementById('tfaTestNotice');
       notice.style.display = 'none';
       notice.textContent = '';
@@ -118,6 +123,11 @@
       document.getElementById('tfaVerifyButton').onclick = function () { self._verify(); };
       document.getElementById('tfaCloseButton').onclick = function () { self._cancel('CANCELLED'); };
       document.getElementById('tfaBackdrop').onclick = function () { self._cancel('CANCELLED'); };
+      document.getElementById('tfaCodeInput').oninput = function () {
+        var v = (this.value || '').replace(/\D/g, '').slice(0, 6);
+        this.value = v;
+        document.getElementById('tfaVerifyButton').disabled = v.length < 6;
+      };
       document.getElementById('tfaCodeInput').onkeydown = function (e) {
         if (e.key === 'Enter') { self._verify(); }
       };
@@ -157,8 +167,11 @@
         // 발송 성공 → 검증 단계 노출 + 타이머
         document.getElementById('tfaSendStep').style.display = 'none';
         document.getElementById('tfaVerifyStep').style.display = '';
-        self._setMessage('', false);
+        self._setStep2Active(true);
+        var masked = self._maskedByType ? (self._maskedByType[self._channel] || '') : '';
+        self._setMessage((masked ? masked + ' 으로 ' : '') + '인증번호를 보냈습니다.', false);
         document.getElementById('tfaCodeInput').value = '';
+        document.getElementById('tfaVerifyButton').disabled = true;
         document.getElementById('tfaCodeInput').focus();
         if (self._testNotice && res.testAuthNumber) {
           var notice = document.getElementById('tfaTestNotice');
@@ -226,21 +239,60 @@
       });
     },
 
+    _fmtClock: function (n) {
+      var m = Math.floor(n / 60);
+      var s = n % 60;
+      return m + ':' + (s < 10 ? '0' + s : s);
+    },
+
+    _setStep2Active: function (active) {
+      var num = document.getElementById('tfaStepNum');
+      var text = document.getElementById('tfaStepText');
+      if (num) { num.classList.toggle('is-active', active); }
+      if (text) { text.classList.toggle('is-active', active); }
+    },
+
+    _resetTimerUi: function () {
+      var base = this._ttl || 180;
+      var clock = document.getElementById('tfaTimer');
+      var bar = document.getElementById('tfaProgressBar');
+      var label = document.getElementById('tfaTimerLabel');
+      var total = document.getElementById('tfaTimerTotal');
+      if (clock) { clock.className = 'tfa-timer'; clock.textContent = this._fmtClock(base); }
+      if (bar) { bar.className = 'tfa-progress-bar'; bar.style.width = '100%'; }
+      if (label) { label.textContent = '남은 인증 시간'; }
+      if (total) { total.textContent = '/ ' + this._fmtClock(base); }
+    },
+
     _startTimer: function (seconds) {
       var self = this;
       self._stopTimer();
+      var total = seconds || self._ttl || 180;
       var remaining = seconds;
-      var el = document.getElementById('tfaTimer');
+      var clock = document.getElementById('tfaTimer');
+      var bar = document.getElementById('tfaProgressBar');
+      var label = document.getElementById('tfaTimerLabel');
+      var totalEl = document.getElementById('tfaTimerTotal');
+      if (label) { label.textContent = '남은 인증 시간'; }
+      if (totalEl) { totalEl.textContent = '/ ' + self._fmtClock(total); }
       function tick() {
         if (remaining <= 0) {
           self._stopTimer();
-          el.textContent = '00:00';
+          if (clock) { clock.textContent = '0:00'; clock.className = 'tfa-timer is-expired'; }
+          if (bar) { bar.style.width = '0%'; }
+          if (label) { label.textContent = '인증 시간이 만료되었습니다. 재전송해 주세요.'; }
           self._cancel('TIMEOUT');
           return;
         }
-        var m = Math.floor(remaining / 60);
+        var warn = remaining <= 30;
-        var s = remaining % 60;
+        if (clock) {
-        el.textContent = (m < 10 ? '0' + m : m) + ':' + (s < 10 ? '0' + s : s);
+          clock.textContent = self._fmtClock(remaining);
+          clock.className = 'tfa-timer' + (warn ? ' is-warning' : '');
+        }
+        if (bar) {
+          bar.style.width = Math.round((remaining / total) * 100) + '%';
+          bar.className = 'tfa-progress-bar' + (warn ? ' is-warning' : '');
+        }
         remaining--;
       }
       tick();

src/main/resources/static/sass/components/_two-factor.scss

@@ -2,133 +2,352 @@
 @use '../abstracts/color-functions' as *;
 @use '../abstracts/mixins' as *;
 
-// 공통 2FA(추가 인증) 팝업. .modal / .modal-backdrop / .modal-dialog 는 _modals 재사용.
+// 공통 2FA(추가 인증) 팝업 — 제주은행(DJBank) ERP뱅킹 Design Guide 적용.
+// .modal / .modal-backdrop / .modal 은 _modals 의 show/hide·애니메이션을 재사용하고
+// 카드 내부는 아래 토큰(surface_blue #4685EF · border_gray #DCE2ED · radius 4)으로 재정의한다.
 
-#tfaModal {
+// 디자인 토큰(가이드 전용, 전역 변수와 분리)
-  .modal-title {
+$tfa-blue:        #4685EF;
-    display: flex;
+$tfa-blue-dark:   #2A69DE;
-    align-items: center;
+$tfa-blue-soft:   #ECF0FA;
-    gap: 8px;
+$tfa-blue-text:   #2A69DE;
-  }
+$tfa-ink:         #0D0E11;
-}
+$tfa-muted:       #7F8A95;
+$tfa-border:      #DCE2ED;
+$tfa-border-2:    #BDC7CF;
+$tfa-surface:     #F4F5F9;
+$tfa-danger:      #F4253C;
 
-.tfa-subtitle {
+// 카드 (modal-dialog 기본 padding/max-width/radius 를 덮어씀)
-  text-align: center;
+.tfa-card {
-  color: #64748B;
-  margin-bottom: 24px;
-  font-size: 14px;
-}
-
-.tfa-segment {
-  display: flex;
-  gap: 8px;
-  margin-bottom: 20px;
-
-  .tfa-seg-btn {
-    flex: 1;
-    display: flex;
-    flex-direction: column;
-    align-items: center;
-    gap: 4px;
-    padding: 12px 8px;
-    border: 1px solid #CBD5E1;
-    border-radius: 8px;
-    background: #F8FAFC;
-    color: #475569;
-    font-size: 14px;
-    font-weight: 600;
-    cursor: pointer;
-    transition: all 0.15s ease;
-
-    &:hover {
-      border-color: $primary-color;
-    }
-
-    &.is-active {
-      background: $primary-color;
-      border-color: $primary-color;
-      color: #FFFFFF;
-
-      .tfa-seg-masked {
-        color: rgba(255, 255, 255, 0.85);
-      }
-    }
-  }
-
-  .tfa-seg-masked {
-    font-size: 12px;
-    font-weight: 400;
-    color: #94A3B8;
-  }
-}
-
-.tfa-btn-block {
-  width: 100%;
-  margin-top: 8px;
-}
-
-.tfa-code-row {
   position: relative;
+  width: 520px;
+  max-width: 100%;
+  padding: 0;
+  border: 1px solid $tfa-border;
+  border-radius: 4px;
+  background: #fff;
+  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
+  color: $tfa-ink;
+  letter-spacing: -0.02em;
+}
+
+// 닫기 (우상단, 은은한 회색)
+.tfa-close {
+  position: absolute;
+  top: 16px;
+  right: 16px;
+  width: 28px;
+  height: 28px;
+  padding: 0;
+  border: 0;
+  background: none;
+  color: $tfa-muted;
+  cursor: pointer;
   display: flex;
   align-items: center;
+  justify-content: center;
+  border-radius: 4px;
+  transition: background 0.12s ease, color 0.12s ease;
+
+  &:hover {
+    background: $tfa-surface;
+    color: $tfa-ink;
+  }
+}
+
+// 헤더
+.tfa-head {
+  padding: 24px 32px;
+  padding-right: 60px; // 우상단 닫기(✕) 영역 확보 — 브랜드 텍스트와 겹치지 않게
+  border-bottom: 1px solid $tfa-border;
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 16px;
+
+  .tfa-head-title {
+    font-size: 27px;
+    font-weight: 700;
+    line-height: 1.35;
+    color: $tfa-ink;
+  }
+
+  .tfa-head-brand {
+    font-size: 14px;
+    font-weight: 500;
+    color: $tfa-muted;
+  }
+}
+
+.tfa-body {
+  padding: 28px 32px 32px;
+}
+
+// 단계 라벨 (① 인증 수단 / ② 인증번호 입력)
+.tfa-step {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  margin-bottom: 12px;
+
+  .tfa-step-num {
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    width: 20px;
+    height: 20px;
+    border-radius: 100px;
+    background: $tfa-border-2;
+    color: #fff;
+    font-size: 11px;
+    font-weight: 500;
+    flex: none;
+
+    &.is-active { background: $tfa-blue; }
+  }
+
+  .tfa-step-text {
+    font-size: 15px;
+    font-weight: 500;
+    color: $tfa-muted;
+
+    &.is-active { color: $tfa-ink; }
+  }
+}
+
+// 채널 선택 (이메일 / 휴대폰) — 2열 그리드
+.tfa-segment {
+  display: grid;
+  grid-template-columns: 1fr 1fr;
+  gap: 8px;
+  margin-bottom: 28px;
+
+  .tfa-seg-btn {
+    padding: 14px 16px;
+    text-align: left;
+    cursor: pointer;
+    border: 1px solid $tfa-border;
+    border-radius: 4px;
+    background: #fff;
+    transition: border-color 0.12s ease, background 0.12s ease;
+
+    .tfa-seg-label {
+      display: block;
+      font-size: 15px;
+      font-weight: 500;
+      color: $tfa-ink;
+    }
+
+    .tfa-seg-masked {
+      display: block;
+      font-size: 14px;
+      font-weight: 300;
+      color: $tfa-muted;
+      margin-top: 2px;
+    }
+
+    &:hover { border-color: $tfa-blue; }
+
+    &.is-active {
+      border: 1.5px solid $tfa-blue;
+      background: $tfa-blue-soft;
+
+      .tfa-seg-label { color: $tfa-blue-text; }
+    }
+  }
+}
+
+// 안내 박스 (발송 전)
+.tfa-hint {
+  border: 1px solid $tfa-border;
+  border-radius: 4px;
+  background: $tfa-surface;
+  padding: 16px;
+  font-size: 14px;
+  font-weight: 300;
+  line-height: 1.5;
+  color: $tfa-muted;
+  margin-bottom: 20px;
+}
+
+// 기본 CTA (인증번호 받기 / 인증 완료)
+.tfa-cta {
+  width: 100%;
+  height: 56px;
+  border: 0;
+  border-radius: 4px;
+  background: $tfa-blue;
+  color: #fff;
+  cursor: pointer;
+  font-size: 16px;
+  font-weight: 500;
+  letter-spacing: -0.02em;
+  transition: background 0.12s ease;
+
+  &:hover { background: $tfa-blue-dark; }
+
+  &:disabled {
+    background: $tfa-surface;
+    color: $tfa-border-2;
+    cursor: default;
+  }
+}
+
+// 인증번호 입력 + 재전송
+.tfa-code-row {
+  display: flex;
+  gap: 8px;
+  margin-bottom: 8px;
+
+  .tfa-code-input-wrap {
+    flex: 1;
+    display: flex;
+    align-items: center;
+    height: 56px;
+    padding: 0 14px;
+    border: 1px solid $tfa-border-2;
+    border-radius: 4px;
+    background: #fff;
+    transition: border-color 0.12s ease;
+
+    &:focus-within { border-color: $tfa-blue; }
+  }
 
   .tfa-code-input {
-    width: 100%;
+    flex: 1;
-    padding: 14px 64px 14px 16px;
+    min-width: 0;
-    border: 1px solid #CBD5E1;
+    border: 0;
-    border-radius: 8px;
+    outline: none;
-    font-size: 15px;
+    background: transparent;
-    letter-spacing: 2px;
+    font-size: 16px;
+    font-weight: 500;
+    letter-spacing: 0.02em;
+    color: $tfa-ink;
 
-    &:focus {
+    &::placeholder {
-      outline: none;
+      color: $tfa-border-2;
-      border-color: $primary-color;
+      font-weight: 400;
     }
   }
 
+  .tfa-resend {
+    flex: none;
+    height: 56px;
+    padding: 0 18px;
+    border: 1px solid $tfa-muted;
+    border-radius: 4px;
+    background: #fff;
+    color: $tfa-ink;
+    cursor: pointer;
+    font-size: 15px;
+    font-weight: 500;
+    white-space: nowrap;
+    transition: background 0.12s ease;
+
+    &:hover { background: $tfa-surface; }
+    &:disabled { opacity: 0.5; cursor: default; }
+  }
+}
+
+// 타이머 행
+.tfa-timer-row {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 12px;
+  border: 1px solid $tfa-border;
+  border-radius: 4px;
+  background: $tfa-surface;
+  padding: 12px 14px;
+  margin-bottom: 12px;
+
+  .tfa-timer-label {
+    font-size: 14px;
+    font-weight: 300;
+    color: $tfa-muted;
+  }
+
+  .tfa-timer-clock {
+    display: flex;
+    align-items: baseline;
+    gap: 6px;
+  }
+
   .tfa-timer {
-    position: absolute;
+    font-size: 20px;
-    right: 16px;
+    font-weight: 500;
-    color: #E11D48;
+    letter-spacing: 0.02em;
-    font-size: 14px;
+    color: $tfa-blue;
-    font-weight: 600;
     font-variant-numeric: tabular-nums;
+
+    &.is-warning { color: $tfa-danger; }
+    &.is-expired { color: $tfa-muted; }
+  }
+
+  .tfa-timer-total {
+    font-size: 13px;
+    font-weight: 300;
+    color: $tfa-muted;
   }
 }
 
+// 진행 바
+.tfa-progress {
+  height: 3px;
+  background: $tfa-border;
+  border-radius: 2px;
+  overflow: hidden;
+  margin-bottom: 12px;
+
+  .tfa-progress-bar {
+    height: 100%;
+    width: 100%;
+    background: $tfa-blue;
+    transition: width 1s linear;
+
+    &.is-warning { background: $tfa-danger; }
+  }
+}
+
+// 발송 안내 / 오류 메시지
 .tfa-message {
-  min-height: 18px;
+  min-height: 21px;
-  margin-top: 8px;
+  margin: 0 0 20px;
-  font-size: 13px;
+  font-size: 14px;
-  color: #64748B;
+  font-weight: 300;
+  line-height: 1.5;
+  color: $tfa-muted;
 
-  &.is-error {
+  &.is-error { color: $tfa-danger; }
-    color: #E11D48;
-  }
 }
 
+// 테스트 인증번호 노출(개발/스테이지)
 .tfa-test-notice {
-  margin-top: 8px;
+  margin: 0 0 16px;
   padding: 10px 14px;
   border: 1px dashed #F59E0B;
-  border-radius: 8px;
+  border-radius: 4px;
   background: #FFFBEB;
   color: #B45309;
   font-size: 13px;
   text-align: center;
 }
 
-.tfa-actions {
+// 하단 안내
-  display: flex;
+.tfa-foot {
-  justify-content: flex-end;
+  margin-top: 24px;
-  margin: 8px 0;
+  padding-top: 16px;
-
+  border-top: 1px solid #DFDFDF;
-  .tfa-resend {
+  font-size: 14px;
-    background: none;
+  font-weight: 300;
-    border: none;
+  line-height: 1.5;
-    color: $primary-color;
+  color: $tfa-muted;
-    font-size: 13px;
+}
-    cursor: pointer;
+
-    text-decoration: underline;
+@media (max-width: $breakpoint-sm) {
-  }
+  .tfa-head { padding: 20px 22px; }
+  .tfa-head .tfa-head-title { font-size: 23px; }
+  .tfa-body { padding: 22px 22px 26px; }
+  .tfa-segment { margin-bottom: 22px; }
 }

src/main/resources/templates/views/fragment/popup/twoFactorAuthPopup.html

@@ -3,49 +3,72 @@
   <div class="modal-backdrop" id="tfaBackdrop"></div>
 
   <div class="modal" id="tfaModal">
-    <div class="modal-dialog">
+    <div class="modal-dialog tfa-card">
 
-      <div class="modal-header">
+      <button type="button" class="tfa-close" id="tfaCloseButton" aria-label="닫기">
-        <h3 class="modal-title" id="tfaTitle">
+        <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none"
-          <span aria-hidden="true">🔒</span> 추가 인증
+             stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
-        </h3>
+          <line x1="18" y1="6" x2="6" y2="18"></line>
-        <button type="button" class="modal-close" id="tfaCloseButton" aria-label="닫기">
+          <line x1="6" y1="6" x2="18" y2="18"></line>
-          <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none"
+        </svg>
-               stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+      </button>
-            <line x1="18" y1="6" x2="6" y2="18"></line>
+
-            <line x1="6" y1="6" x2="18" y2="18"></line>
+      <!-- 헤더 -->
-          </svg>
+      <div class="tfa-head">
-        </button>
+        <span class="tfa-head-title" id="tfaTitle">추가 인증</span>
+        <span class="tfa-head-brand">DJBank</span>
       </div>
 
-      <div class="modal-body">
+      <div class="tfa-body">
-        <p class="tfa-subtitle">제주은행(DJBank)에 오신걸 환영합니다</p>
 
-        <!-- 채널 선택 세그먼트 (이메일/전화번호) -->
+        <!-- STEP 1 : 인증 수단 -->
-        <div class="tfa-segment" id="tfaSegment" role="tablist">
+        <div class="tfa-step">
-          <!-- JS 가 채널 버튼을 렌더링 -->
+          <span class="tfa-step-num is-active">1</span>
+          <span class="tfa-step-text is-active">인증 수단</span>
+        </div>
+        <!-- 채널 선택(이메일/휴대폰) — JS 가 렌더링 -->
+        <div class="tfa-segment" id="tfaSegment" role="tablist"></div>
+
+        <!-- STEP 2 : 인증번호 입력 -->
+        <div class="tfa-step">
+          <span class="tfa-step-num" id="tfaStepNum">2</span>
+          <span class="tfa-step-text" id="tfaStepText">인증번호 입력</span>
         </div>
 
         <!-- 인증번호 발송 전 -->
         <div id="tfaSendStep">
-          <button type="button" class="btn btn-primary tfa-btn-block" id="tfaSendButton">인증번호 발송</button>
+          <div class="tfa-hint">아래 버튼을 누르면 선택하신 수단으로 6자리 인증번호를 보내드립니다.</div>
+          <button type="button" class="tfa-cta" id="tfaSendButton">인증번호 받기</button>
         </div>
 
         <!-- 인증번호 발송 후 -->
         <div id="tfaVerifyStep" style="display: none;">
           <div class="tfa-code-row">
-            <input type="text" id="tfaCodeInput" class="tfa-code-input" inputmode="numeric" maxlength="6"
+            <div class="tfa-code-input-wrap">
-                   autocomplete="one-time-code" placeholder="인증번호를 입력해주세요"/>
+              <input type="text" id="tfaCodeInput" class="tfa-code-input" inputmode="numeric" maxlength="6"
-            <span class="tfa-timer" id="tfaTimer">03:00</span>
+                     autocomplete="one-time-code" placeholder="인증번호 6자리"/>
+            </div>
+            <button type="button" class="tfa-resend" id="tfaResendButton">재전송</button>
           </div>
-          <div class="tfa-message" id="tfaMessage"></div>
+
+          <div class="tfa-timer-row">
+            <span class="tfa-timer-label" id="tfaTimerLabel">남은 인증 시간</span>
+            <span class="tfa-timer-clock">
+              <span class="tfa-timer" id="tfaTimer">3:00</span>
+              <span class="tfa-timer-total" id="tfaTimerTotal">/ 3:00</span>
+            </span>
+          </div>
+
+          <div class="tfa-progress"><div class="tfa-progress-bar" id="tfaProgressBar"></div></div>
+
+          <p class="tfa-message" id="tfaMessage"></p>
           <div class="tfa-test-notice" id="tfaTestNotice" style="display: none;"></div>
-          <div class="tfa-actions">
+
-            <button type="button" class="tfa-resend" id="tfaResendButton">인증번호 재발송</button>
+          <button type="button" class="tfa-cta" id="tfaVerifyButton" disabled>인증 완료</button>
-          </div>
-          <button type="button" class="btn btn-primary tfa-btn-block" id="tfaVerifyButton">인증코드 확인</button>
         </div>
 
+        <div class="tfa-foot">인증번호가 오지 않으면 스팸함을 확인하시거나 다른 수단으로 다시 시도해 주세요.</div>
+
       </div>
     </div>
   </div>