/* ==================================================================
   2026 백두대간 자생곤충전 이벤트 랜딩 페이지
   모바일 우선 + 데스크톱 반응형 (900px 이상에서 PC 레이아웃)
================================================================== */
:root{
  --green-900:#12281a; --green-800:#1c3a26; --green-700:#265234;
  --green-500:#3d8b4f; --green-400:#5bb06a; --lime:#8ede4a;
  --wood:#7a5a34; --wood-dark:#4a3720; --sand:#f4ecd6;
  --gold:#ffd94a; --ink:#22301f; --muted:#7c8a76;
  --danger:#e0523f;
  --pad:20px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Pretendard','Apple SD Gothic Neo','Malgun Gothic',sans-serif;
  color:var(--ink);background:#eef2e6;line-height:1.6;
  -webkit-text-size-adjust:100%;
}
img{max-width:100%;display:block}
h1,h2,h3{line-height:1.25}

/* 콘텐츠 폭 컨테이너 — 모바일 520 / 데스크톱 1080 */
.wrap{width:100%;max-width:560px;margin:0 auto;padding:0 var(--pad)}
@media(min-width:900px){ :root{--pad:32px} .wrap{max-width:1080px} }

/* ---------------- 01 메인 비주얼 ---------------- */
.hero{position:relative;min-height:70vh;display:flex;align-items:flex-end;
  overflow:hidden;color:#fff;background:var(--green-900)}
.hero-bg{position:absolute;inset:0;
  background:radial-gradient(120% 80% at 50% 0%, #2c5a38 0%, #14301e 60%, #0b1f13 100%)}
.hero-bg::after{content:"배경 이미지 (교체 예정)";position:absolute;top:16px;left:0;right:0;
  text-align:center;font-size:12px;color:rgba(255,255,255,.28);letter-spacing:.05em}
.hero-inner{position:relative;width:100%;max-width:1080px;margin:0 auto;
  padding:40px var(--pad) 54px}
.hero-logo{display:inline-block;font-weight:900;font-size:18px;letter-spacing:.04em;
  padding:8px 16px;border:2px solid rgba(255,255,255,.55);border-radius:999px;
  margin-bottom:20px;backdrop-filter:blur(2px)}
.hero-tag{font-size:15px;color:var(--lime);font-weight:700;margin-bottom:6px}
.hero-title{font-size:clamp(30px,7vw,64px);font-weight:900;
  text-shadow:0 4px 16px rgba(0,0,0,.5);margin-bottom:10px}
.hero-sub{font-size:clamp(16px,2.2vw,22px);opacity:.92;margin-bottom:26px}
.hero-cta{display:inline-block;background:var(--gold);color:#3a2a08;font-weight:800;
  padding:15px 30px;border-radius:999px;text-decoration:none;font-size:17px;
  box-shadow:0 8px 22px rgba(0,0,0,.35);animation:bob 2.4s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
@media(min-width:900px){
  .hero{min-height:78vh;align-items:center;text-align:center}
  .hero-inner{padding:0 var(--pad)}
  .hero-cta{font-size:19px;padding:17px 40px}
}

/* ---------------- 공통 섹션 헤더 ---------------- */
.sec-head{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.sec-no{background:var(--green-700);color:#fff;font-weight:800;font-size:13px;
  padding:4px 10px;border-radius:8px;flex:none}
.sec-head h2{font-size:clamp(20px,3.5vw,30px);font-weight:900;color:var(--green-800)}
.sub-h{font-size:clamp(17px,2.5vw,22px);font-weight:800;color:var(--green-700);margin:26px 0 12px}

/* ---------------- 02 게임 섹션 ---------------- */
.game-sec{padding:44px var(--pad)}
.game-sec .inner{max-width:1080px;margin:0 auto}
.cardnews{background:var(--green-800);color:#eafbe4;border-radius:16px;
  padding:20px 22px;margin-bottom:24px;box-shadow:0 8px 24px rgba(20,48,30,.25)}
.cardnews p{font-size:clamp(15px,1.8vw,18px);margin:4px 0}
.cardnews b{color:var(--gold)}
.cardnews-em{font-weight:800;color:var(--lime);margin-top:10px !important;font-size:1.1em}

.game-frame{margin:0 auto}
.game-device{position:relative;width:100%;max-width:400px;margin:0 auto;
  aspect-ratio:9/16;border-radius:26px;overflow:hidden;background:#0b1610;
  border:8px solid #20160c;box-shadow:0 18px 40px rgba(0,0,0,.4)}
.game-device iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.game-hint{text-align:center;color:var(--muted);font-size:14px;margin-top:14px}

/* 참여방법 3단계 — 나무 표지판 이미지 */
.steps-wrap{margin-top:34px}
.steps-title{font-size:clamp(18px,2.4vw,24px);font-weight:900;color:var(--green-800);
  margin-bottom:14px}
.steps{list-style:none;display:flex;flex-direction:column;gap:16px}
.steps li{position:relative;text-align:center}
.steps li img{width:100%;max-width:440px;margin:0 auto;
  filter:drop-shadow(0 10px 20px rgba(0,0,0,.28))}
.step-badge{display:inline-block;position:absolute;left:50%;top:-2px;transform:translateX(-50%);
  background:var(--green-700);color:#fff;font-weight:800;font-size:13px;
  padding:4px 16px;border-radius:999px;z-index:2;box-shadow:0 4px 10px rgba(0,0,0,.25)}

.game-layout{display:block}

/* 데스크톱: 게임 좌측(크게) + 설명/스텝 우측 2단 */
@media(min-width:900px){
  .game-layout{display:flex;gap:52px;align-items:flex-start}
  .game-frame{flex:0 0 500px;position:sticky;top:24px}
  .game-device{max-width:500px}
  .game-aside{flex:1;min-width:0}
  .cardnews{margin-bottom:24px;padding:30px 34px}
  .steps-wrap{margin-top:24px}
  .steps li img{max-width:100%}
}

/* ---------------- 03 이벤트 상세 ---------------- */
.info-sec{padding:44px var(--pad)}
.info-sec .inner{max-width:820px;margin:0 auto}       /* 넓은 화면에서 허전하지 않게 폭 제한 */
.info-table{background:#fff;border-radius:16px;overflow:hidden;
  box-shadow:0 6px 18px rgba(0,0,0,.06)}
.info-table>div{display:flex;gap:16px;padding:20px 26px;border-bottom:1px solid #eef0ea;
  align-items:baseline}
.info-table>div:last-child{border-bottom:0}
.info-table dt{flex:none;width:112px;font-weight:800;color:var(--green-700);
  font-size:clamp(16px,1.9vw,19px)}
.info-table dd{font-size:clamp(16px,1.9vw,19px);color:#333;line-height:1.7}
.info-table dd .muted{font-size:.9em}
.muted{color:var(--muted)}

.prizes{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.prize{background:#fff;border-radius:16px;padding:30px 10px;text-align:center;
  box-shadow:0 6px 16px rgba(0,0,0,.06);border-top:5px solid var(--gold)}
.prize-rank{font-size:16px;font-weight:800;color:var(--green-500)}
.prize-name{font-size:clamp(22px,3vw,30px);font-weight:900;color:var(--ink);margin:8px 0 4px}
.prize-cnt{font-size:16px;color:var(--muted)}

.map-placeholder{background:#e5ece0;border:2px dashed #b9c9ac;border-radius:16px;
  height:220px;display:grid;place-items:center;color:var(--muted);font-size:15px}

/* ---------------- 04 유의사항 / 푸터 ---------------- */
.notice-sec{padding:34px var(--pad)}
.notice-sec .inner{max-width:820px;margin:0 auto}
.notice-list{list-style:none;background:#fff;border-radius:14px;padding:20px 24px;
  box-shadow:0 6px 16px rgba(0,0,0,.05);columns:1}
.notice-list li{position:relative;padding-left:16px;font-size:14px;color:#555;margin:8px 0;
  break-inside:avoid}
.notice-list li::before{content:"·";position:absolute;left:4px;color:var(--green-500);font-weight:900}
.share{display:flex;align-items:center;gap:12px;margin-top:20px}
.share span{font-weight:700;color:var(--green-700);font-size:15px}
.share-btn{background:var(--green-700);color:#fff;border:0;border-radius:999px;
  padding:9px 20px;font-size:14px;font-weight:700;cursor:pointer}
@media(min-width:900px){ .notice-list{columns:2;column-gap:40px} }

.footer{text-align:center;padding:36px var(--pad) 120px;color:var(--green-800)}
.footer p{font-weight:800;font-size:16px}
.footer-sub{font-weight:400 !important;color:var(--muted);font-size:13px;margin-top:4px}

/* ---------------- 06 플로팅 버튼 ---------------- */
.float-btn{position:fixed;right:20px;bottom:20px;z-index:40;
  display:flex;flex-direction:column;align-items:center;
  background:linear-gradient(180deg,var(--green-500),var(--green-700));
  color:#fff;border:0;border-radius:16px;padding:14px 22px;cursor:pointer;
  box-shadow:0 10px 26px rgba(0,0,0,.35);animation:pulse 2s ease-in-out infinite}
.float-btn:active{transform:scale(.96)}
.float-main{font-weight:900;font-size:16px}
.float-sub{font-size:11px;opacity:.85}
@keyframes pulse{0%,100%{box-shadow:0 10px 26px rgba(0,0,0,.35)}
  50%{box-shadow:0 10px 32px rgba(141,222,74,.55)}}

/* ---------------- 05 팝업 ---------------- */
.modal{position:fixed;inset:0;z-index:60;display:none}
.modal.open{display:block}
.modal-dim{position:absolute;inset:0;background:rgba(10,20,12,.6);backdrop-filter:blur(2px)}
.modal-card{position:absolute;left:50%;bottom:0;transform:translateX(-50%);
  width:100%;max-width:520px;background:#fff;
  border-radius:22px 22px 0 0;padding:26px 22px calc(22px + env(safe-area-inset-bottom));
  box-shadow:0 -12px 40px rgba(0,0,0,.3);animation:slideUp .3s cubic-bezier(.2,1,.4,1)}
@media(min-width:560px){.modal-card{bottom:auto;top:50%;transform:translate(-50%,-50%);
  border-radius:22px;animation:pop .3s cubic-bezier(.2,1.2,.4,1)}}
@keyframes slideUp{from{transform:translate(-50%,100%)}to{transform:translate(-50%,0)}}
@keyframes pop{from{transform:translate(-50%,-46%);opacity:0}to{transform:translate(-50%,-50%);opacity:1}}
.modal-x{position:absolute;top:14px;right:16px;width:38px;height:38px;border:0;
  background:#f0f0ec;border-radius:50%;font-size:22px;color:#666;cursor:pointer;line-height:1}
.modal-title{font-size:22px;font-weight:900;color:var(--green-800);margin-bottom:18px;padding-right:40px}

/* 최고기록 박스 */
.record-box{background:linear-gradient(180deg,var(--green-700),var(--green-800));
  color:#fff;border-radius:16px;padding:18px;text-align:center;margin-bottom:20px}
.record-label{font-size:13px;opacity:.85}
.record-val{font-size:46px;font-weight:900;color:var(--gold);line-height:1.1}
.record-val em{font-size:22px;font-style:normal;margin-left:4px}
.double-badge{display:none;margin-top:8px;background:var(--gold);color:#5a3d00;
  font-weight:900;font-size:14px;padding:6px 14px;border-radius:999px}
.record-box.doubled .double-badge{display:inline-block}
.record-hint{font-size:12px;opacity:.8;margin-top:8px}
.record-box.has-record .record-hint{display:none}

/* 폼 */
.field{display:block;margin-bottom:14px}
.field span{display:block;font-size:13px;font-weight:700;color:var(--green-700);margin-bottom:6px}
.field input{width:100%;border:2px solid #dfe3d8;border-radius:12px;padding:13px 14px;
  font-size:16px;color:var(--ink);transition:border-color .15s}
.field input:focus{outline:none;border-color:var(--green-500)}
.field input.invalid{border-color:var(--danger)}

.agree{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:#444;margin:6px 0 4px}
.agree input{margin-top:3px;width:20px;height:20px;flex:none;accent-color:var(--green-500)}
.agree b{color:var(--danger)}
.agree-more{background:none;border:0;color:var(--green-500);text-decoration:underline;
  cursor:pointer;font-size:13px;padding:0 0 0 4px}
.agree-text{background:#f4f6f0;border-radius:10px;padding:12px 14px;font-size:12px;
  color:#666;margin:8px 0}

.form-error{color:var(--danger);font-size:13px;font-weight:700;margin:6px 2px 0}

.modal-btns{display:flex;gap:10px;margin-top:18px}
.btn{flex:1;border:0;border-radius:12px;padding:15px;font-size:16px;font-weight:800;cursor:pointer}
.btn-ghost{background:#eef0ea;color:#555}
.btn-primary{background:linear-gradient(180deg,var(--green-500),var(--green-700));color:#fff}
.btn-primary:disabled{opacity:.55;cursor:default}
.btn:active{transform:scale(.98)}

/* 응모 완료 */
.entry-done{text-align:center;padding:16px 0 6px}
.done-icon{font-size:56px}
.entry-done h3{font-size:22px;font-weight:900;color:var(--green-800);margin:8px 0}
.entry-done p{color:#555;font-size:14px;margin-bottom:20px}
.entry-done .btn{max-width:200px;margin:0 auto}

/* 토스트 */
.toast{position:fixed;left:50%;bottom:96px;transform:translateX(-50%);z-index:80;
  background:rgba(20,30,20,.92);color:#fff;padding:12px 20px;border-radius:999px;
  font-size:14px;font-weight:700;box-shadow:0 8px 24px rgba(0,0,0,.3)}
.toast[hidden]{display:none}