/* LUMA. 신청 폼 스타일
   블랙 캔버스 + 애시드 옐로 + 픽셀 타이포 (학회 아이덴티티 기준) */

:root {
  --ink:      #070707;  /* 배경 블랙 */
  --luma:     #F2E430;  /* 포인트 옐로 */
  --paper:    #EFEFEF;  /* 본문 화이트 */

  /* 위 세 가지에서 파생된 중간 톤 */
  --ink-2:    #111111;
  --line:     #262626;
  --line-2:   #3F3F3B;
  --body:     #C4C4BE;
  --mute:     #85857F;
  --faint:    #4C4C47;
  --danger:   #FF6B4A;

  --pixel: 'Galmuri11', 'DungGeunMo', 'Neo둥근모', ui-monospace, monospace;
  --gap: clamp(20px, 5vw, 44px);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--pixel);
  -webkit-font-smoothing: none;
  font-smooth: never;
}

body {
  min-height: 100svh;
  display: flex;
  justify-content: center;
  padding: env(safe-area-inset-top) 0 env(safe-area-inset-bottom);
}

.frame {
  width: 100%;
  max-width: 720px;
  min-height: 100svh;
  padding: var(--gap);
  display: flex;
  flex-direction: column;
}

/* 진행 표시 — 학회 카드의 상단 룰을 그대로 가져왔습니다 */
.rule {
  height: 5px;
  background: var(--paper);
  overflow: hidden;
  flex: 0 0 auto;
}
.rule span {
  display: block;
  height: 100%;
  width: 12%;
  background: var(--luma);
  transition: width .45s cubic-bezier(.2,.8,.2,1);
}

.stage {
  flex: 1 1 auto;
  position: relative;
  padding-top: clamp(28px, 7vw, 56px);
}

.panel { display: none; animation: rise .38s cubic-bezier(.2,.8,.2,1) both; }
.panel.is-on { display: block; }

@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: none; }
}

/* 로고 */
.mark { fill: var(--luma); display: block; }
.mark--hero { width: 62px; height: auto; margin-bottom: 18px; }
.mark--foot { width: 30px; height: auto; }

.wordmark {
  margin: 0;
  font-size: clamp(22px, 6vw, 30px);
  letter-spacing: .06em;
}
.since {
  margin: 2px 0 clamp(30px, 8vw, 56px);
  font-size: 12px;
  color: var(--mute);
  letter-spacing: .08em;
}

/* 타이포 */
.hero {
  margin: 0 0 22px;
  font-size: clamp(25px, 6.6vw, 40px);
  line-height: 1.5;
  font-weight: 400;
}
.hero em { font-style: normal; color: var(--luma); }
.hero .q { letter-spacing: -.02em; }

.ask {
  margin: 0 0 clamp(26px, 6vw, 40px);
  font-size: clamp(24px, 6.2vw, 36px);
  line-height: 1.5;
  font-weight: 400;
}
.ask em { font-style: normal; color: var(--luma); }

.eyebrow {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--luma);
}

.lede {
  margin: 0 0 clamp(30px, 7vw, 46px);
  font-size: clamp(14px, 3.6vw, 16px);
  line-height: 2;
  color: var(--body);
}

.hint {
  margin: 14px 0 0;
  font-size: 12px;
  color: var(--mute);
}

.sr {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

/* 입력 */
.field { margin-bottom: 26px; }
.field label {
  display: block;
  font-size: 13px;
  color: var(--mute);
  margin-bottom: 10px;
  letter-spacing: .04em;
}

input[type=text], input[type=tel], textarea {
  width: 100%;
  background: transparent;
  border: 0;
  border-bottom: 2px solid var(--line);
  color: var(--paper);
  font-family: var(--pixel);
  font-size: clamp(17px, 4.4vw, 20px);
  padding: 10px 2px;
  border-radius: 0;
  transition: border-color .2s;
}
textarea {
  border: 2px solid var(--line);
  padding: 16px;
  line-height: 1.9;
  font-size: clamp(15px, 3.8vw, 17px);
  resize: vertical;
}
input::placeholder, textarea::placeholder { color: var(--faint); }
input:focus, textarea:focus {
  outline: none;
  border-color: var(--luma);
}
input:focus-visible, textarea:focus-visible { outline: none; }

.sub {
  margin: 10px 0 0;
  font-size: 12px;
  color: var(--mute);
}

/* 봇 차단용 숨김 필드 */
.pot { position: absolute; left: -9999px; opacity: 0; height: 0; }

/* 관심분야 칩 */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.chip {
  font-family: var(--pixel);
  font-size: clamp(14px, 3.6vw, 15px);
  color: var(--paper);
  background: transparent;
  border: 2px solid var(--line);
  padding: 12px 16px;
  cursor: pointer;
  border-radius: 0;
  transition: border-color .15s, color .15s, background .15s;
}
.chip:hover { border-color: var(--line-2); }
.chip[aria-pressed="true"] {
  background: var(--luma);
  border-color: var(--luma);
  color: var(--ink);
}
.chip:focus-visible { outline: 2px solid var(--luma); outline-offset: 3px; }

/* 버튼 */
.nav {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-top: clamp(30px, 7vw, 44px);
}

.cta {
  font-family: var(--pixel);
  font-size: clamp(15px, 4vw, 17px);
  background: var(--luma);
  color: var(--ink);
  border: 2px solid var(--luma);
  padding: 15px 30px;
  cursor: pointer;
  border-radius: 0;
  transition: transform .12s, filter .15s;
}
.cta:hover { filter: brightness(1.08); }
.cta:active { transform: translateY(2px); }
.cta[disabled] { opacity: .45; cursor: progress; }
.cta:focus-visible { outline: 2px solid var(--paper); outline-offset: 3px; }

.ghost {
  font-family: var(--pixel);
  font-size: 14px;
  background: transparent;
  color: var(--mute);
  border: 2px solid var(--line);
  padding: 15px 20px;
  cursor: pointer;
  border-radius: 0;
}
.ghost:hover { color: var(--paper); border-color: var(--line-2); }
.ghost:focus-visible { outline: 2px solid var(--luma); outline-offset: 3px; }

.err {
  margin: 16px 0 0;
  min-height: 18px;
  font-size: 13px;
  color: var(--danger);
}

/* 하단 서명 */
.foot {
  flex: 0 0 auto;
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  gap: 10px;
  padding-top: 40px;
  font-size: 14px;
  letter-spacing: .05em;
}

@media (prefers-reduced-motion: reduce) {
  *, .panel { animation: none !important; transition: none !important; }
}