:root {
  --바탕: #faf8f4;
  --면: #ffffff;
  --글: #1f2328;
  --옅은글: #5b616b;
  --선: #e4ded3;
  --강조: #c8551f;
  --강조진: #a8461a;
  --보조: #2f6f5e;
  --보조옅: #e8f2ee;
  --경고옅: #fff6e8;
  --둥글: 10px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--바탕); color: var(--글);
  font-family: "Pretendard", "맑은 고딕", "Malgun Gothic", "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  font-size: 17px; line-height: 1.7; word-break: keep-all; overflow-wrap: anywhere;
}
a { color: var(--보조); }
img { max-width: 100%; height: auto; display: block; }
.안쪽 { max-width: 980px; margin: 0 auto; padding: 0 16px; }

.알림띠 { background: #efeae1; color: var(--옅은글); font-size: 14px; text-align: center; padding: 6px 16px; }
header.머리 { background: var(--면); border-bottom: 1px solid var(--선); }
header.머리 .안쪽 { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px; padding-top: 12px; padding-bottom: 12px; }
.상호 { font-weight: 800; font-size: 22px; color: var(--글); text-decoration: none; letter-spacing: -0.5px; }
.상호 span { color: var(--강조); }
nav a { margin-left: 18px; color: var(--글); text-decoration: none; font-weight: 600; font-size: 16px; }
nav a:first-child { margin-left: 0; }
nav a[aria-current="page"] { color: var(--강조); }

main { padding: 32px 0 56px; }
h1 { font-size: 34px; line-height: 1.35; margin: 0 0 14px; letter-spacing: -0.8px; }
h2 { font-size: 25px; margin: 48px 0 14px; letter-spacing: -0.5px; }
h3 { font-size: 19px; margin: 26px 0 8px; }
p { margin: 0 0 12px; }
.옅게 { color: var(--옅은글); }
.작게 { font-size: 15px; }

.첫화면 { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 32px; align-items: center; }
.첫화면 .설명 { font-size: 19px; color: var(--옅은글); }
.단추들 { display: flex; flex-wrap: wrap; gap: 10px; margin: 20px 0 10px; }
.단추 {
  display: inline-block; padding: 13px 22px; border-radius: var(--둥글); font-weight: 700; font-size: 17px;
  text-decoration: none; border: 2px solid var(--강조); color: var(--강조); background: var(--면); cursor: pointer;
}
.단추.주 { background: var(--강조); color: #fff; }
.단추.주:hover { background: var(--강조진); border-color: var(--강조진); }
.단추:disabled { opacity: .5; cursor: default; }

.상자 { background: var(--면); border: 1px solid var(--선); border-radius: var(--둥글); padding: 20px 22px; margin: 14px 0; }
.상자.초록 { background: var(--보조옅); border-color: #cfe3da; }
.상자.노랑 { background: var(--경고옅); border-color: #f0dcb8; }
.칸들 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.칸들.둘 { grid-template-columns: repeat(2, 1fr); }
.칸들 .상자 { margin: 0; }
.칸들 h3 { margin-top: 0; }

ul.점 { padding-left: 22px; margin: 6px 0 12px; }
ul.점 li { margin: 4px 0; }
ol.순서 { padding-left: 24px; }
ol.순서 li { margin: 6px 0; }

.그림 { border: 1px solid var(--선); border-radius: var(--둥글); background: var(--면); padding: 8px; }
.그림설명 { font-size: 14px; color: var(--옅은글); text-align: center; margin-top: 6px; }
.그림둘 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; align-items: start; }

.가격 { font-size: 30px; font-weight: 800; }
.가격 small { font-size: 16px; font-weight: 600; color: var(--옅은글); }

table.표 { border-collapse: collapse; width: 100%; background: var(--면); font-size: 15px; margin: 10px 0 16px; }
table.표 th, table.표 td { border: 1px solid var(--선); padding: 8px 10px; text-align: left; vertical-align: top; }
table.표 th { background: #f3efe8; overflow-wrap: normal; }  /* 머리 칸은 낱말 중간에서 끊지 않음 */
.표감싸기 { overflow-x: auto; }

code, .고정폭 { font-family: Consolas, "D2Coding", monospace; font-size: 15px; background: #f1ede6; padding: 1px 6px; border-radius: 5px; word-break: break-all; }

/* 윈도 경고창 흉내 */
.경고창 { background: #1f5fa8; color: #fff; border-radius: 6px; padding: 20px 22px; max-width: 460px; font-family: "Segoe UI", "맑은 고딕", sans-serif; }
.경고창 .큰글 { font-size: 22px; font-weight: 600; margin-bottom: 10px; }
.경고창 .작은글 { font-size: 14px; opacity: .95; }
.경고창 .링크 { text-decoration: underline; font-size: 14px; outline: 2px dashed #ffd23f; outline-offset: 3px; display: inline-block; margin-top: 10px; }
.경고창 .줄 { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; }
.경고창 .줄 span { border: 1px solid #fff; padding: 4px 18px; font-size: 14px; }
.경고창 .줄 span.눌러 { background: #fff; color: #1f5fa8; outline: 2px dashed #ffd23f; outline-offset: 3px; }

/* 양식 */
form .칸 { margin: 14px 0; }
label { font-weight: 700; display: block; margin-bottom: 4px; }
input[type=text], input[type=password], select, textarea {
  width: 100%; font: inherit; font-size: 16px; padding: 10px 12px; border: 1px solid #cfc7b8; border-radius: 8px; background: #fff; color: var(--글);
}
textarea { min-height: 180px; resize: vertical; }
.체크 { display: flex; gap: 8px; align-items: flex-start; font-weight: 400; }
.체크 input { margin-top: 6px; }
.숨김칸 { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.결과 { white-space: pre-wrap; }
.키상자 { font-family: Consolas, "D2Coding", monospace; font-size: 15px; background: #fff; border: 1px dashed var(--보조); padding: 12px; border-radius: 8px; word-break: break-all; }
.오류 { color: #b3261e; font-weight: 700; }
[hidden] { display: none !important; }

footer.바닥 { border-top: 1px solid var(--선); background: #f3efe8; color: var(--옅은글); font-size: 14px; padding: 24px 0 36px; }
footer.바닥 p { margin: 4px 0; }
footer.바닥 a { color: var(--옅은글); margin-right: 12px; }

.문서 h1 { font-size: 30px; }
.문서 h2 { font-size: 21px; margin-top: 32px; }
.문서 table { border-collapse: collapse; width: 100%; font-size: 15px; background: var(--면); }
.문서 th, .문서 td { border: 1px solid var(--선); padding: 7px 9px; vertical-align: top; }
.문서 th { background: #f3efe8; }

.상자.안전 { border: 2px solid #2f8a63; }
.안전띠 { background: var(--보조옅); border: 2px solid #2f8a63; border-radius: var(--둥글); padding: 10px 14px; font-size: 15px; }

@media (max-width: 760px) {
  body { font-size: 16px; }
  h1 { font-size: 27px; }
  h2 { font-size: 22px; }
  .첫화면, .그림둘, .칸들, .칸들.둘 { grid-template-columns: 1fr; }
  nav a { margin-left: 12px; font-size: 15px; }
  .단추 { width: 100%; text-align: center; }
}

/* ---------- 도구판(첫 화면) ---------- */
.도구판머리 { text-align: center; padding: 12px 0 8px; }
.도구판머리 .설명 { font-size: 19px; color: var(--옅은글); }
.칸제목 { font-size: 21px; margin: 30px 0 12px; }
.도구판 { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; }
.도구카드 { position: relative; }
.도구카드 > a {
  display: flex; flex-direction: column; gap: 8px; height: 100%; padding: 20px 18px 18px; border-radius: 14px;
  background: var(--면); border: 1px solid var(--선); color: var(--글); text-decoration: none;
  transition: box-shadow .15s, transform .15s, border-color .15s;
}
.도구카드 > a:hover, .도구카드 > a:focus-visible { border-color: #cbbfae; box-shadow: 0 6px 18px rgba(60, 40, 20, .10); transform: translateY(-2px); }
.도구카드 strong { font-size: 18px; line-height: 1.35; padding-right: 30px; }
.도구카드 span { font-size: 15px; color: var(--옅은글); line-height: 1.5; }
.도구카드.요청 { grid-column: 1 / -1; }
.도구카드.요청 > a { background: transparent; border-style: dashed; display: grid; grid-template-columns: auto 1fr; column-gap: 16px; row-gap: 2px; align-items: center; }
.도구카드.요청 .도구그림 { grid-row: 1 / 3; }
.도구카드.요청 strong { padding-right: 0; }
.도구그림 { flex: none; display: block; }
.별 {
  position: absolute; top: 12px; right: 12px; width: 36px; height: 36px; border: 0; border-radius: 50%;
  background: transparent; font-size: 22px; line-height: 36px; color: #b9ae9d; cursor: pointer; padding: 0;
}
.별:hover { background: #f3efe8; color: var(--강조); }
.별[aria-pressed="true"] { color: #e3a008; }
.별안내 { font-size: 15px; color: var(--옅은글); text-align: center; margin: 18px 0 0; }
.약속 .상자 h3 { font-size: 17px; }

/* ---------- 도구 쪽 머리 ---------- */
.빵조각 { font-size: 15px; color: var(--옅은글); margin: -12px 0 14px; }
.빵조각 a { color: var(--옅은글); }
.도구머리 { display: flex; align-items: center; gap: 16px; margin-bottom: 22px; flex-wrap: wrap; }
.도구머리 > div { flex: 1 1 300px; }
.도구머리 h1 { margin: 0 0 4px; font-size: 30px; }
.도구머리 .설명 { margin: 0; color: var(--옅은글); }
.별.큰별 {
  position: static; width: auto; height: auto; border-radius: 999px; border: 1px solid var(--선); background: var(--면);
  font-size: 15px; line-height: 1.4; padding: 8px 14px; color: var(--옅은글); font-weight: 600;
}
.별.큰별[aria-pressed="true"] { color: #9a6a00; border-color: #e9c46a; background: #fff8e1; }

/* ---------- 큰 파일 놓는 곳 ---------- */
.놓는곳 {
  background: var(--강조); border-radius: 16px; padding: 38px 16px 30px; text-align: center; color: #fff;
  outline: 3px dashed rgba(255, 255, 255, .55); outline-offset: -14px; transition: background .15s;
}
.놓는곳 svg { margin: 0 auto 14px; display: block; }
.놓는곳.위 { background: var(--강조진); outline-color: #fff; }
.고르기단추 { background: #fff; color: var(--강조); border-color: #fff; font-size: 19px; padding: 15px 34px; box-shadow: 0 3px 10px rgba(0, 0, 0, .15); font-weight: 800; }
.고르기단추:hover { background: #fff6f0; }
.놓기글 { margin: 12px 0 0; font-size: 15px; opacity: .92; }
#파일이름 { display: block; margin-top: 10px; font-weight: 700; word-break: break-all; }
#파일이름:empty { display: none; }
.예시줄 { text-align: center; margin: 12px 0 6px; }
.글단추 { background: none; border: 0; padding: 0; font: inherit; font-weight: 700; color: var(--보조); text-decoration: underline; cursor: pointer; }
.확인들 { list-style: none; padding: 0; margin: 4px 0 18px; display: flex; flex-wrap: wrap; justify-content: center; gap: 4px 20px; font-size: 15px; color: var(--옅은글); }
.확인들 li::before { content: "✔"; color: #2f8a63; margin-right: 6px; font-weight: 800; }
.웹단계 h2 small, .웹단계 summary small { font-size: 14px; font-weight: 400; color: var(--옅은글); margin-left: 6px; }
.작은단추 { font-size: 15px; padding: 8px 14px; border-width: 1px; }

/* ---------- 계산기 ---------- */
.계산판 { background: var(--면); border: 1px solid var(--선); border-radius: 16px; padding: 22px; }
.큰입력 { display: flex; align-items: center; gap: 10px; margin: 0 0 14px; }
.큰입력 span { font-weight: 700; flex: none; }
.큰입력 input { flex: 1; min-width: 0; font: inherit; font-size: 26px; font-weight: 700; padding: 10px 14px; border: 2px solid #cfc7b8; border-radius: 10px; text-align: right; }
.큰입력 input:focus { border-color: var(--강조); outline: none; }
.큰입력 b { flex: none; font-size: 20px; }
.고르기판 { display: flex; flex-wrap: wrap; gap: 6px 18px; margin: 8px 0; align-items: center; }
.고르기판 label { font-weight: 400; display: inline-flex; gap: 6px; align-items: center; margin: 0; }
.고르기판 > span { font-weight: 700; }
.결과판 { margin-top: 16px; border-top: 1px solid var(--선); }
.결과판 > div { display: grid; grid-template-columns: 9em 1fr auto; align-items: center; gap: 10px; padding: 12px 0; border-bottom: 1px solid var(--선); }
.결과판 > div > span { color: var(--옅은글); }
.결과판 b { font-size: 22px; text-align: right; overflow-wrap: anywhere; }
.결과판 .합 b { color: var(--강조); font-size: 26px; }
.글결과 b { text-align: left; font-size: 19px; }
.복사 { border: 1px solid var(--선); background: #f8f5ef; border-radius: 8px; padding: 6px 12px; font: inherit; font-size: 14px; cursor: pointer; }
.복사.됨 { background: var(--보조옅); color: var(--보조); border-color: #cfe3da; }

@media (max-width: 760px) {
  .도구판 { grid-template-columns: 1fr 1fr; gap: 10px; }
  .도구카드 > a { padding: 16px 14px; }
  .도구카드 strong { font-size: 16px; }
  .도구카드 span { font-size: 14px; }
  .도구머리 h1 { font-size: 25px; }
  .결과판 > div { grid-template-columns: 1fr auto; }
  .결과판 > div > span { grid-column: 1 / -1; }
  .결과판 b { text-align: left; }
  .큰입력 input { font-size: 22px; }
  .고르기단추 { width: auto; }
  .별.큰별 { width: auto; }
}
@media (max-width: 420px) {
  .도구판 { grid-template-columns: 1fr; gap: 8px; }
  /* 휴대폰: 아이콘을 왼쪽에 둔 낮은 카드로 한 화면에 더 많이 */
  .도구카드 > a { display: grid; grid-template-columns: auto 1fr; column-gap: 14px; row-gap: 2px; align-items: center; padding: 14px 48px 14px 12px; }
  .도구카드 .도구그림 { grid-row: 1 / 3; width: 44px; height: 44px; }
  .도구카드 strong { padding-right: 0; }
  .도구카드.요청 > a { padding-right: 12px; }
  .별 { top: 50%; margin-top: -18px; right: 8px; }
  .도구카드.요청 strong { padding-right: 0; }
}

/* ---------- 첫 화면 머리 상자 ---------- */
.머리상자 {
  position: relative; overflow: hidden; margin: 18px 0 0; padding: 40px 28px 42px; border-radius: 22px; text-align: center;
  background: linear-gradient(160deg, #fff7f0 0%, #ffe9d8 100%); border: 1px solid #f2cfb5;
  box-shadow: 0 1px 0 #fff inset, 0 12px 30px -14px rgba(168, 70, 26, .35);
}
.머리상자::before, .머리상자::after {
  content: ""; position: absolute; border-radius: 50%; pointer-events: none;
}
.머리상자::before { width: 260px; height: 260px; right: -90px; top: -120px; background: radial-gradient(circle, rgba(232, 138, 69, .28), rgba(232, 138, 69, 0) 70%); }
.머리상자::after { width: 220px; height: 220px; left: -80px; bottom: -120px; background: radial-gradient(circle, rgba(200, 85, 31, .16), rgba(200, 85, 31, 0) 70%); }
.머리상자 .머리꼬리 {
  position: relative; display: inline-block; margin: 0 0 14px; padding: 5px 14px; border-radius: 999px;
  background: var(--강조); color: #fff; font-size: 14px; font-weight: 700; letter-spacing: .03em;
}
.머리상자 h1 { position: relative; margin: 0; font-size: 38px; line-height: 1.32; letter-spacing: -1px; color: var(--글); }
.머리상자 h1 em {
  font-style: normal; color: var(--강조);
  background: linear-gradient(transparent 68%, rgba(232, 138, 69, .28) 68%); padding: 0 2px;
}
.머리설명 { margin: 16px auto 4px; max-width: 640px; text-align: center; color: var(--옅은글); font-size: 17px; line-height: 1.65; }
@media (max-width: 760px) {
  .머리상자 { padding: 30px 18px 32px; border-radius: 18px; }
  .머리상자 h1 { font-size: 27px; }
  .머리설명 { font-size: 15.5px; }
}