:root{
  --bg:#0b0c10;
  --panel:#12141b;
  --panel2:#0f1117;
  --line:#23283a;
  --txt:#e9ecf4;
  --sub:#a8b0c7;
  --accent:#7aa7ff;
  --accent2:#9bffd2;
  --shadow: 0 12px 30px rgba(0,0,0,.35);
  --r: 18px;
}

*{box-sizing:border-box}
body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, "Noto Sans KR", Arial, sans-serif;
  background: radial-gradient(1200px 600px at 30% 0%, rgba(122,167,255,.18), transparent 60%),
              radial-gradient(900px 500px at 80% 30%, rgba(155,255,210,.10), transparent 55%),
              var(--bg);
  color: var(--txt);
}

a{color:inherit; text-decoration:none}
.page{max-width:1200px; margin:0 auto; padding:18px 14px 26px}

.top{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:12px;
  margin-bottom:14px;
}

.brand .title{
  font-size:26px;
  font-weight:800;
  letter-spacing:-0.3px;
}
.brand .subtitle{
  margin-top:6px;
  color:var(--sub);
  font-size:13px;
}

.nav{display:flex; gap:10px; align-items:center}
.navLink{
  padding:10px 12px;
  border:1px solid var(--line);
  border-radius:999px;
  background: rgba(18,20,27,.6);
}
.navLink:hover{border-color: rgba(122,167,255,.5)}

.layout{
  display:grid;
  grid-template-columns: 180px 1fr 180px;
  gap:14px;
  align-items:start;
}

.adCol{position:sticky; top:12px}
.adBox{
  background: rgba(18,20,27,.65);
  border:1px solid var(--line);
  border-radius: var(--r);
  padding:12px;
  box-shadow: var(--shadow);
  min-height: 420px;
}

.adPlaceholder{
  height: 396px;
  border-radius: 12px;
  border:1px dashed rgba(255,255,255,.18);
  display:flex;
  align-items:center;
  justify-content:center;
  color: rgba(233,236,244,.55);
  font-weight:700;
  letter-spacing:1px;
}

.card{
  background: linear-gradient(180deg, rgba(18,20,27,.75), rgba(15,17,23,.75));
  border:1px solid var(--line);
  border-radius: var(--r);
  padding:16px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}

.row{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:12px;
}

.label{
  width:70px;
  color:var(--sub);
  font-size:13px;
}

.input, .select{
  width:100%;
  background: rgba(0,0,0,.25);
  border:1px solid rgba(255,255,255,.12);
  color: var(--txt);
  border-radius: 12px;
  outline:none;
}

/* 폼 컨트롤 높이/정렬 통일 (모바일/데스크탑 공통) */
.input, .select{
  height: 48px;
  padding: 0 14px;
}

.input{
  line-height: normal;
}

.select{
  cursor:pointer;
  -webkit-appearance: none;
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, rgba(233,236,244,.75) 50%),
    linear-gradient(135deg, rgba(233,236,244,.75) 50%, transparent 50%);
  background-position:
    calc(100% - 18px) 50%,
    calc(100% - 12px) 50%;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
  padding-right: 34px;
}

.input:focus, .select:focus{
  border-color: rgba(122,167,255,.55);
  box-shadow: 0 0 0 3px rgba(122,167,255,.14);
}

.select.small{max-width:160px}

.grid2{
  display:grid;
  grid-template-columns: 1fr 90px 1fr;
  gap:12px;
  margin-top:6px;
}

.block{
  background: rgba(0,0,0,.18);
  border:1px solid rgba(255,255,255,.10);
  border-radius: 16px;
  padding:12px;
}

.blockHead{display:flex; justify-content:space-between; align-items:center; margin-bottom:8px}
.blockTitle{font-weight:800; letter-spacing:-0.2px}

.mid{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:8px;
}

.swapBtn{
  width:60px;
  height:60px;
  border-radius: 18px;
  border:1px solid rgba(122,167,255,.45);
  background: rgba(122,167,255,.14);
  color: var(--txt);
  font-size:22px;
  cursor:pointer;
}

.swapBtn:hover{
  background: rgba(122,167,255,.20);
}

.hint{
  font-size:12px;
  color: var(--sub);
}

.mini{
  margin-top:10px;
  border-top:1px solid rgba(255,255,255,.08);
  padding-top:12px;
  display:flex;
  flex-direction:column;
  gap:10px;
}

.miniRow{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
}

.miniKey{color:var(--sub); font-size:13px}
.miniVal{display:flex; justify-content:flex-end; gap:8px; flex:1}
.quick{flex-wrap:wrap}

.chip{
  padding:8px 10px;
  border-radius: 999px;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(0,0,0,.22);
  color: var(--txt);
  cursor:pointer;
}

.chip:hover{border-color: rgba(155,255,210,.45)}

.note{
  margin-top:12px;
  color: rgba(233,236,244,.85);
  font-size:13px;
  line-height:1.5;
  min-height: 20px;
}

.footer{
  margin-top:14px;
  padding-top:12px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;
  justify-content:space-between;
  gap:10px;
  color: var(--sub);
  font-size:12px;
}

.tinyLink{opacity:.95}
.tinyLink:hover{color: var(--txt)}

.bottomAd{
  margin-top:14px;
}

.bottomAd .adBox{
  min-height: auto;
  padding:12px;
}

.bottomAd .adPlaceholder{
  height: 120px;
}

.tinyBottom{
  margin-top:10px;
  color: rgba(168,176,199,.75);
  font-size:12px;
  text-align:center;
}

/* 모바일 최적화 */
@media (max-width: 980px){
  .page{padding:14px 12px 22px}

  .top{
    align-items:flex-start;
    gap:10px;
  }

  .brand .title{font-size:22px}
  .brand .subtitle{font-size:12px}

  .layout{grid-template-columns: 1fr}
  .adCol{display:none}

  .card{
    padding:14px;
    border-radius: 18px;
  }

  .row{
    gap:10px;
    margin-bottom:10px;
  }

  .label{
    width:64px;
    font-size:12px;
  }

  .grid2{
    grid-template-columns: 1fr;
    gap:10px;
  }

  .block{
    padding:12px;
    border-radius: 16px;
  }

  .blockTitle{
    font-size:14px;
  }

  .mid{
    flex-direction:row;
    justify-content:space-between;
    align-items:center;
    padding:10px 12px;
    border-radius: 16px;
    border:1px solid rgba(255,255,255,.10);
    background: rgba(0,0,0,.14);
  }

  .swapBtn{
    width:56px;
    height:48px;
    border-radius: 14px;
  }

  .hint{
    font-size:12px;
    color: var(--sub);
  }

  .mini{
    margin-top:12px;
    padding-top:12px;
  }

  .miniKey{
    font-size:12px;
  }

  .select.small{
    max-width: 170px;
  }

  .quick{
    gap:8px;
  }

  .chip{
    height: 40px;
    padding: 0 12px;
    display:flex;
    align-items:center;
    justify-content:center;
    min-width: 44px;
  }

  .note{
    font-size:12px;
  }

  .footer{
    flex-direction:column;
    align-items:flex-start;
    gap:8px;
  }

  .bottomAd .adPlaceholder{
    height: 96px;
  }

  /* iOS 확대(줌) 방지용 */
  .input, .select{
    font-size: 16px;
  }
}