/* downsub 스타일: 연회색 바탕, 흰 상단 바, 위쪽에 작은 도구, 가운데 정렬 제목 + 초록 아이콘, 납작한 4px 모서리. 다크 모드 없음(항상 밝게) */
:root {
  --bg: #f9f9f9; --fg: #030303; --muted: #5f6368; --line: #e3e3e3; --card: #fff;
  --accent: #03a87c; --accent-fg: #fff; --soft: rgb(12 242 143 / .14); --dash: #03a87c; --ok: #03a87c;
  color-scheme: light;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
body {
  margin: 0; background: var(--bg); color: var(--fg); line-height: 1.7;
  font-family: "Noto Sans KR", -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  word-break: keep-all;
}
a { color: var(--accent); }
h1, h2, h3 { text-wrap: balance; line-height: 1.3; }
svg { width: 1em; height: 1em; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex: none; }
strong { font-weight: 700; }

/* 상단 바 */
.top { background: var(--card); border-bottom: 1px solid var(--line); }
.top-in { max-width: 1080px; margin: 0 auto; padding: 12px max(16px, env(safe-area-inset-right, 0px)) 12px max(16px, env(safe-area-inset-left, 0px)); display: flex; flex-wrap: wrap; gap: 6px 20px; align-items: center; }
.logo { display: flex; align-items: center; gap: 6px; font-weight: 700; font-size: 1.05rem; color: var(--fg); text-decoration: none; margin-right: auto; }
.logo .app-icon { width: 24px; height: 24px; font-size: 22px; }
.top nav { display: flex; flex-wrap: wrap; gap: 4px 20px; font-size: .85rem; }
.top nav a { color: var(--fg); text-decoration: none; }
.top nav a:hover, .top nav a[aria-current] { color: var(--accent); }
.top nav a[aria-current] { font-weight: 700; }

main { max-width: 800px; margin: 0 auto; padding-block: 0; padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }

/* 도구 영역: 화면 끝까지 그라데이션 띠, 흰 큰 제목, 흰 버튼. 파일을 끌어오면 흰 점선 */
html, body { overflow-x: clip; }
.hero { margin: 0 calc(50% - 50vw); padding: clamp(36px, 7vw, 64px) max(16px, calc(50vw - 50%)) clamp(40px, 7vw, 72px); color: #fff;
  background: radial-gradient(circle at 85% 10%, rgb(255 255 255 / .14), transparent 40%), linear-gradient(135deg, #02a37a 0%, #0a8f8f 45%, #1b6fd1 100%); }
.hero-in { border: 2px dashed transparent; border-radius: 16px; padding: 8px 4px 12px; display: grid; justify-items: center; text-align: center; gap: 14px; transition: background .15s, border-color .15s; }
.hero.over .hero-in { background: rgb(255 255 255 / .12); border-color: rgb(255 255 255 / .8); }
.hero-head { display: flex; align-items: center; justify-content: center; gap: 10px; flex-wrap: wrap; }
.app-icon { color: var(--accent); display: grid; place-items: center; font-size: 30px; flex: none; }
.hero .app-icon { color: #fff; font-size: 36px; }
.hero h1 { font-size: clamp(1.8rem, 5.5vw, 3rem); font-weight: 800; letter-spacing: -.02em; margin: 0; line-height: 1.25; }
.hero mark { background: none; color: #ffe066; }
.lead { margin: 0; max-width: 640px; }
.hero .lead { color: rgb(255 255 255 / .88); font-size: clamp(1rem, 2.2vw, 1.15rem); }

#tool { width: 100%; display: grid; justify-items: center; gap: 10px; margin-top: 12px; }
.pick { width: min(100%, 720px); cursor: pointer; }
.pick input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.pick-btn { display: flex; align-items: center; justify-content: center; gap: 8px; height: clamp(80px, 12vw, 108px); border-radius: 20px; background: #fff; color: var(--accent); font-size: clamp(1.4rem, 3.5vw, 1.85rem); font-weight: 800; box-shadow: 0 10px 28px rgb(0 0 0 / .18); transition: transform .1s, box-shadow .15s; }
.pick-btn svg { font-size: 34px; stroke-width: 2.8; }
.pick:hover .pick-btn { box-shadow: 0 12px 32px rgb(0 0 0 / .26); }
.pick:active .pick-btn { transform: translateY(1px); }
.pick:focus-within .pick-btn { outline: 3px solid #ffe066; outline-offset: 3px; }
.fname { margin: 0; color: var(--muted); font-size: .85rem; overflow-wrap: anywhere; }
.hero .fname, .hero .secure, .hero #status { color: rgb(255 255 255 / .8); }
.hero .fname b { color: #fff; font-size: 1rem; }
.setup { width: min(100%, 520px); display: grid; gap: 10px; }
.quality { border: 0; padding: 0; margin: 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 4px 20px; }
.quality legend { font-weight: 700; padding: 0; margin: 0 auto 4px; }
.quality small { color: var(--muted); }
.hero .quality small { color: rgb(255 255 255 / .75); }
.hero .quality input { accent-color: #ffe066; }
.hero button.primary { background: #ffe066; border-color: #ffe066; color: #1d1d1f; }
.hero button.primary:hover:not(:disabled) { color: #1d1d1f; }
.note { margin: 0; font-size: .8rem; color: var(--muted); }
.hero .note { color: rgb(255 255 255 / .8); }
.hero .note a { color: #fff; }
.hero .save-note { color: #fff; }
.secure { font-size: .8rem; color: var(--muted); margin: 4px 0 0; max-width: 560px; }
.hero .secure.offline #net { color: #ffe066; }
.hero progress { accent-color: #ffe066; }
.hero #result { color: var(--fg); }

/* 체크 칩 */
.chips { list-style: none; padding: 0; margin: 10px 0 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
.chips li { padding: 6px 14px 6px 12px; border-radius: 999px; border: 1px solid rgb(255 255 255 / .35); background: rgb(255 255 255 / .12); font-size: .88rem; font-weight: 600; }
.chips li::before { content: "✓ "; }
.chips .br { flex-basis: 100%; height: 0; padding: 0; border: 0; background: none; }
.chips .br::before { content: none; }

/* 숫자 띠 */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); background: var(--card); box-shadow: 0 0 0 100vmax var(--card); clip-path: inset(0 -100vmax); border-bottom: 1px solid var(--line); }
.stats div { display: grid; justify-items: center; text-align: center; padding: 24px 8px; gap: 2px; }
.stats div + div { border-left: 1px solid var(--line); }
.stats b { font-size: clamp(1.5rem, 4vw, 2rem); font-weight: 800; color: var(--accent); line-height: 1.2; }
.stats span { color: var(--muted); font-size: .88rem; }
@media (max-width: 620px) { .stats { grid-template-columns: 1fr 1fr; } .stats div:nth-child(3) { border-left: 0; } .stats div:nth-child(n+3) { border-top: 1px solid var(--line); } }
.secure.offline #net { color: var(--ok); font-weight: 700; }

.row { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
button { font: inherit; padding: 8px 14px; border-radius: 4px; cursor: pointer; border: 1px solid var(--line); background: var(--card); color: var(--fg); }
button:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
button:disabled { opacity: .45; cursor: not-allowed; }
button.primary { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); font-weight: 700; flex: 1; padding-block: 11px; }
button.primary:hover:not(:disabled) { color: var(--accent-fg); filter: brightness(1.08); }
#status { min-height: 1.7em; margin: 0; color: var(--muted); }
progress { width: min(100%, 480px); height: 6px; accent-color: var(--accent); }
#result { width: 100%; text-align: left; background: var(--card); border: 1px solid var(--line); border-radius: 4px; padding: 16px; }
#result .row { justify-content: flex-start; }
.hint { color: var(--muted); font-size: .85rem; margin: 8px 0; }
.restored { margin: 0 0 12px; padding: 10px 14px; border-radius: 6px; background: var(--soft); font-size: .9rem; }
.restored button { padding: 2px 10px; font-size: .8rem; margin-left: 4px; }
.restored small { color: var(--muted); }
.ai-tip { margin: 12px 0 0; padding: 10px 14px; border-radius: 6px; background: #fff8db; font-size: .88rem; line-height: 1.7; }
.ai-tip a { font-weight: 700; }
#segs { list-style: none; padding: 0; margin: 0; max-height: 60vh; overflow: auto; }
#segs li { display: flex; gap: 12px; padding: 6px 0; border-bottom: 1px solid var(--line); }
#segs time { color: var(--muted); font-size: .8rem; font-variant-numeric: tabular-nums; padding-top: .25em; flex: none; }
#segs span { flex: 1; outline: none; border-radius: 4px; }
#segs span:focus { background: var(--soft); }

/* 아래 섹션들 */
/* 섹션마다 흰색/연회색 바탕을 화면 끝까지 번갈아 깔아서 파트 구분 (마크업 변경 없이 box-shadow로 좌우 확장) */
.block { padding-block: 56px; }
.block:nth-of-type(even) { background: var(--card); box-shadow: 0 0 0 100vmax var(--card); clip-path: inset(0 -100vmax); }
.block > h2 { display: flex; align-items: center; justify-content: center; gap: 8px; font-size: 1.5rem; margin: 0 0 28px; }
.block > h2 svg { color: var(--accent); font-size: 1.15em; }

.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; counter-reset: step; }
.steps li { counter-increment: step; text-align: center; display: grid; justify-items: center; align-content: start; gap: 4px; }
.steps li::before { content: counter(step); width: 32px; height: 32px; border-radius: 50%; border: 2px solid var(--accent); color: var(--accent); font-weight: 700; display: grid; place-items: center; }
.steps h3 { margin: 4px 0 0; font-size: 1.05rem; }
.steps p { margin: 0; color: var(--muted); font-size: .95rem; }

.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr)); gap: 20px 32px; }
.feature { display: grid; grid-template-columns: 28px 1fr; gap: 10px; align-items: start; }
.feature .ico { color: var(--accent); font-size: 24px; padding-top: 2px; }
.feature h3 { margin: 0 0 2px; font-size: 1.05rem; }
.feature p { margin: 0; color: var(--muted); font-size: .95rem; }

.more { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 6px 18px; }
.more a { display: inline-flex; align-items: center; gap: 4px; text-decoration: none; font-weight: 500; }
.more a:hover { text-decoration: underline; }

/* 상황별 카드 */
.cases { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 150px), 1fr)); gap: 12px; }
.cases a { height: 100%; display: flex; flex-direction: column; align-items: flex-start; gap: 6px; padding: 20px 18px; border-radius: 14px; background: var(--card); border: 1px solid var(--line); color: var(--fg); text-decoration: none; transition: border-color .15s, transform .15s, box-shadow .15s; }
.cases a:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: 0 8px 20px rgb(0 0 0 / .06); }
.cases .ico { width: 44px; height: 44px; border-radius: 12px; background: var(--soft); color: var(--accent); display: grid; place-items: center; font-size: 24px; margin-bottom: 4px; }
.cases b { font-size: 1.1rem; }
.cases span:not(.ico) { color: var(--muted); font-size: .92rem; line-height: 1.55; }
.cases i { font-style: normal; color: var(--accent); font-weight: 600; font-size: .9rem; margin-top: auto; padding-top: 6px; }

.faq { margin: 0; }
.faq dt { font-weight: 700; margin-top: 18px; padding-top: 18px; border-top: 1px solid var(--line); }
.faq dt:first-child { margin-top: 0; padding-top: 0; border-top: 0; }
.faq dd { margin: 4px 0 0; color: var(--muted); }

/* 개인정보처리방침처럼 도구 없는 페이지 */
main > h1 { font-size: 1.5rem; margin: 36px 0 4px; }
main > .lead { color: var(--muted); }

/* 상황별 페이지 본문 */
article h2 { font-size: 1.25rem; margin: 44px 0 10px; }
article h3 { font-size: 1.05rem; margin: 22px 0 4px; }
article ol, article ul:not(.more) { padding-left: 1.3em; }
article .more { justify-content: flex-start; }
article { padding-bottom: 56px; }

footer { max-width: 800px; margin: 0 auto; padding: 20px max(16px, env(safe-area-inset-right, 0px)) 32px max(16px, env(safe-area-inset-left, 0px)); border-top: 1px solid var(--line); color: var(--muted); font-size: .85rem; }

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

/* 홈: 숫자 띠 아래 "녹음 단축키 설정법" 펼치기 박스 (갤럭시/아이폰 탭은 라디오+CSS만으로) */
.quick { max-width: 800px; margin: 28px auto 0; border: 1px solid var(--accent); border-radius: 10px; background: var(--soft); }
.quick summary { cursor: pointer; padding: 14px 18px; text-align: center; list-style: none; }
.quick summary::-webkit-details-marker { display: none; }
.quick summary::after { content: " ▾"; color: var(--accent); }
.quick[open] summary::after { content: " ▴"; }
.qk-body { padding: 0 18px 16px; }
.qk-body input { position: absolute; opacity: 0; }
.qk-body label { display: inline-block; padding: 6px 16px; margin: 0 4px 10px 0; border-radius: 999px; border: 1px solid var(--accent); color: var(--accent); font-weight: 700; cursor: pointer; background: #fff; }
#os-g:checked + label, #os-i:checked + label { background: var(--accent); color: #fff; }
.qk-body ol { margin: 0; padding-left: 1.3em; background: #fff; border-radius: 8px; padding: 12px 14px 12px 2.2em; }
.qk-i, #os-i:checked ~ .qk-g { display: none; }
#os-i:checked ~ .qk-i { display: block; }
.qk-foot { margin: 10px 0 0; font-size: .88rem; color: var(--muted); text-align: center; }