:root{
  --outside:#070d13;
  --input:#e3d4b6;
  --gold:#dfbf72;
  --copy:#aaa49c;
}

*{box-sizing:border-box}

html,
body{
  width:100%;
  min-height:100%;
  margin:0;
}

body{
  background:var(--outside);
  color:#fff;
  font-family:Pretendard,"Noto Sans KR","Apple SD Gothic Neo","Malgun Gothic",Arial,sans-serif;
}

button,
input{font:inherit}

/*
  PC/모바일 HTML이 이미 별도 파일로 나뉘어 있으므로 화면 폭으로 문서 전체를
  숨기지 않습니다. 모바일 가로모드·태블릿·앱 WebView가 768px 이상으로
  viewport를 보고해도 빈 화면이 되지 않습니다.
*/

/* ---------- Desktop ---------- */

.page{
  min-height:100vh;
  min-height:100dvh;
  display:grid;
  place-items:center;
  overflow:hidden;
  background:linear-gradient(90deg,#070d13,#0a1118 50%,#070d13);
}

/* 배경 이미지가 일반 흐름에서 높이를 직접 만들도록 하여 aspect-ratio 의존 제거 */
.scene{
  position:relative;
  width:100vw;
  max-width:1672px;
  overflow:hidden;
  flex:none;
}

.bg{
  position:relative;
  display:block;
  width:100%;
  height:auto;
  object-fit:contain;
  user-select:none;
  -webkit-user-select:none;
  pointer-events:none;
}

.site-logo{
  position:absolute;
  left:50%;
  top:5.5%;
  transform:translateX(-50%);
  width:23%;
  max-width:390px;
  max-height:24%;
  object-fit:contain;
  filter:drop-shadow(0 10px 16px rgba(0,0,0,.45));
  pointer-events:none;
  user-select:none;
  -webkit-user-select:none;
  z-index:3;
}

.login-form{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  z-index:4;
  pointer-events:none;
}

.field{
  position:absolute;
  left:34.81%;
  width:28.71%;
  height:5.74%;
  display:block;
  margin:0;
  padding:0;
  z-index:6;
  cursor:text;
  pointer-events:auto;
}

.field-id{top:43.04%}
.field-pw{top:49.95%}

.field input{
  position:absolute;
  inset:0;
  display:block;
  width:100%;
  height:100%;
  min-width:0;
  box-sizing:border-box;
  margin:0;
  border:0;
  border-radius:0;
  outline:0;
  background:transparent;
  color:var(--input);
  font-size:clamp(12px,.83vw,17px);
  font-weight:500;
  line-height:normal;
  padding:3px 8px 0 25.75%;
  letter-spacing:0;
  text-shadow:0 1px 3px rgba(0,0,0,.45);
  caret-color:#f2d890;
  cursor:text;
  pointer-events:auto;
  user-select:text;
  -webkit-user-select:text;
  appearance:none;
  -webkit-appearance:none;
  -webkit-tap-highlight-color:transparent;
}

.field input::placeholder{
  color:#858585;
  opacity:1;
}

.field input:focus{
  border:0;
  outline:0;
  box-shadow:none;
}

.field input:-webkit-autofill,
.field input:-webkit-autofill:hover,
.field input:-webkit-autofill:focus,
.field input:-webkit-autofill:active{
  -webkit-text-fill-color:var(--input);
  -webkit-box-shadow:0 0 0 1000px transparent inset;
  box-shadow:0 0 0 1000px transparent inset;
  transition:background-color 99999s ease-in-out 0s;
  caret-color:#f2d890;
}

.field input::-ms-reveal,
.field input::-ms-clear{display:none}

.login-button{
  position:absolute;
  left:34.81%;
  top:58.24%;
  width:28.71%;
  height:6.48%;
  margin:0;
  padding:0;
  border:0;
  outline:0;
  background:transparent;
  cursor:pointer;
  pointer-events:auto;
  z-index:6;
  -webkit-tap-highlight-color:transparent;
}

.login-button:focus-visible,
.signup-link:focus-visible{
  outline:2px solid rgba(232,198,119,.8);
  outline-offset:2px;
}

.signup-area{
  position:absolute;
  left:50%;
  top:75%;
  transform:translateX(-50%);
  width:48%;
  text-align:center;
  z-index:5;
}

.signup-title{
  margin:0 0 6px;
  color:var(--gold);
  font-size:clamp(17px,1.55vw,29px);
  font-weight:800;
  text-shadow:0 2px 10px rgba(0,0,0,.5);
}

.signup-copy{
  margin:0 0 16px;
  color:var(--copy);
  font-size:clamp(11px,.95vw,17px);
  line-height:1.55;
  text-shadow:0 2px 8px rgba(0,0,0,.4);
}

.signup-link{
  display:inline-block;
  width:16.33vw;
  max-width:273px;
  line-height:0;
  text-decoration:none;
  overflow:visible;
}

.signup-link img{
  display:block;
  width:100%;
  height:auto;
  object-fit:contain;
  overflow:visible;
  filter:drop-shadow(0 10px 20px rgba(0,0,0,.35));
  transition:transform .15s ease,filter .15s ease;
}

.signup-link:hover img{
  transform:translateY(-1px);
  filter:brightness(1.05) drop-shadow(0 12px 22px rgba(0,0,0,.38));
}

/* ---------- Dedicated mobile composition ---------- */

.mobile-page{
  min-height:100vh;
  min-height:100svh;
  background:#071018;
  overflow-x:hidden;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:flex-start;
}

/*
  min()을 사용하지 않고 오래된 Android WebView도 해석 가능한
  height + max-height 조합을 사용합니다.
*/
.mobile-stage{
  position:relative;
  width:100%;
  height:132.15vw;
  max-height:520px;
  overflow:hidden;
  flex:none;
  background:#071018;
}

/*
  배경 이미지를 정상 흐름에 두어 canvas 높이가 이미지에서 계산됩니다.
  absolute + aspect-ratio 조합으로 높이가 0이 되는 문제를 방지합니다.
*/
.mobile-canvas{
  position:absolute;
  left:50%;
  top:0;
  transform:translateX(-50%);
  width:235vw;
  max-width:970px;
}

.mobile-canvas .bg{
  position:relative;
  width:100%;
  height:auto;
  object-fit:contain;
}

.mobile-canvas .site-logo{
  width:22.5%;
  top:5.5%;
  max-width:none;
}

.mobile-canvas .field input{
  font-size:14px;
  padding-top:3px;
}

.mobile-signup{
  width:90vw;
  max-width:430px;
  text-align:center;
  margin-top:2px;
  padding:0 16px 24px;
  flex:none;
}

.mobile-signup[hidden]{display:none}

.mobile-signup .signup-title{
  margin-bottom:5px;
  font-size:18px;
}

.mobile-signup .signup-copy{
  margin-bottom:14px;
  font-size:12px;
}

.mobile-signup .signup-link{
  width:70vw;
  max-width:273px;
}

.mobile-spacer{display:none}

/* 가입창 없는 모바일은 로그인 영역을 세로 중앙에 배치 */
.mobile-page.no-signup{justify-content:center}

.mobile-page.no-signup .mobile-stage{
  height:132.15vw;
  max-height:520px;
}

/* 가입창 있는 모바일은 로그인 버튼 아래에 가입 영역이 바로 오도록 기존 크기 유지 */
.mobile-page:not(.no-signup) .mobile-stage{
  height:106vw;
  max-height:420px;
}

/* 아주 좁은 화면에서 입력 글자 크기 보정 */
@media(max-width:360px){
  .mobile-canvas{width:240vw}
  .mobile-canvas .field input{font-size:13px}
}

/* 이미지 경로 또는 디코딩 실패 시 완전한 검은 화면 대신 오류를 표시 */
.background-load-error body::before{
  content:"로그인 배경 이미지를 불러오지 못했습니다";
  position:fixed;
  left:12px;
  right:12px;
  top:calc(12px + env(safe-area-inset-top,0px));
  z-index:9999;
  padding:10px 12px;
  background:#8b1e1e;
  color:#fff;
  font-size:13px;
  text-align:center;
}