/* disctimer 공통 스타일 – 알람·스톱워치 페이지가 함께 씀 (타이머 페이지는 같은 값을 자체 스타일로 가짐) */
:root{
  --bg:#000; --text:#f5f5f7; --muted:#8e8e93; --line:#1c1c1e; --panel:#111113; --panel2:#1c1c1e;
  --face:#161618; --tick:#48484a; --num:#d1d1d6;
  --disc:#ff3b30;
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--text)}
body{font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","Pretendard","Apple SD Gothic Neo","Malgun Gothic","Hiragino Sans","Meiryo","Microsoft YaHei","Segoe UI",Roboto,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased}
button,select{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer;padding:0}
button:focus-visible,select:focus-visible,a:focus-visible{outline:2px solid var(--disc);outline-offset:3px;border-radius:10px}

/* 상단 바 + 도구 메뉴 */
.top{position:fixed;inset:0 0 auto 0;height:56px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;z-index:5;transition:opacity .4s}
.logo{display:flex;align-items:center;gap:8px;font-weight:600;font-size:15px;letter-spacing:-.01em;text-decoration:none;color:var(--text)}
.logo i{width:18px;height:18px;border-radius:50%;background:conic-gradient(var(--disc) 0 70%,#2c2c2e 70% 100%);display:block}
.nav{position:absolute;left:50%;transform:translateX(-50%);display:flex;gap:22px}  /* 테두리 없는 글자 탭 */
.nav a{padding:4px 2px;font-size:15px;color:var(--muted);text-decoration:none;white-space:nowrap;border-bottom:2px solid transparent}
.nav a:hover{color:var(--text)}
.nav a[aria-current="page"]{color:var(--text);font-weight:600;border-color:var(--text)}
.icons{display:flex;gap:4px;align-items:center}
.ic{height:40px;min-width:40px;display:flex;align-items:center;justify-content:center;gap:6px;border-radius:10px;color:var(--muted)}
.ic:hover,.ic[aria-expanded="true"]{background:var(--panel2);color:var(--text)}
.ic svg{width:20px;height:20px;flex:none}
.ic.lang{padding:0 10px;font-size:13px;font-weight:600}
@media (max-width:640px){
  .logo span,.ic.lang span{display:none}
  .ic.lang{padding:0}
  .nav{gap:14px} .nav a{font-size:14px}
}

/* 화면 */
.stage{min-height:100vh;min-height:100svh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;padding:72px 16px 32px}
.dial{--size:min(80vw,46vh,460px);width:var(--size);height:var(--size);position:relative;user-select:none;-webkit-user-select:none}
.dial svg{width:100%;height:100%;display:block;overflow:visible}
.dial .face{fill:var(--face)}
.dial .tick{stroke:var(--tick);stroke-width:4;stroke-linecap:round;display:none}  /* 숫자가 있어 눈금은 생략 */
.dial .num{fill:var(--num);font-size:24px;font-weight:700;text-anchor:middle;dominant-baseline:central;font-variant-numeric:tabular-nums}
.dial .disc{fill:var(--disc);transition:fill .3s}
.dial .knob{fill:var(--bg)}
.big{font-size:clamp(56px,11vw,96px);font-weight:700;letter-spacing:-.03em;font-variant-numeric:tabular-nums;line-height:1}
.sub{font-size:14px;color:var(--muted);text-align:center;min-height:1.6em}
.sub b{color:var(--disc);font-weight:600}
.ctrl{display:flex;gap:12px;align-items:center;flex-wrap:wrap;justify-content:center}
.btn{height:52px;min-width:52px;padding:0 26px;border-radius:999px;background:var(--panel2);font-weight:600;font-size:16px}
.btn:hover{background:#2c2c2e}
.btn.main{background:var(--text);color:#000;min-width:132px}
.btn.main:hover{background:#fff}
.btn.round{padding:0;width:52px;display:grid;place-items:center}
.btn.round svg{width:22px;height:22px}
/* 보조 버튼: 바탕 없이 아이콘·글자만 → 시작 버튼만 눈에 띄게 */
.ctrl .btn:not(.main){background:none;color:var(--muted)}
.ctrl .btn:not(.main):hover{background:var(--panel2);color:var(--text)}
.ctrl .btn.muted{color:var(--disc)}
.btn.muted{color:var(--disc)}
.btn[disabled]{opacity:.35;cursor:default}
/* 빠른 선택 버튼: 타이머 시간 버튼과 같은 테두리 없는 글자 */
.chips{display:flex;flex-wrap:wrap;justify-content:center;gap:2px;max-width:560px}
.chips button{padding:6px 12px;border-radius:999px;font-size:15px;color:var(--muted);font-variant-numeric:tabular-nums}
.chips button:hover{color:var(--text)}
.chips button.on{color:var(--text);background:var(--panel2);font-weight:600}
.field{height:52px;padding:0 14px;border-radius:999px;border:1px solid #3a3a3c;background:var(--panel);font-size:20px;font-weight:600;font-variant-numeric:tabular-nums;cursor:pointer}
.note{font-size:13px;color:var(--muted);text-align:center;max-width:460px}

/* 팝오버 (설정·언어) */
.pop{position:fixed;top:60px;right:16px;width:270px;background:var(--panel);border:1px solid #2c2c2e;border-radius:16px;padding:16px;z-index:6;display:none}
.pop.open{display:block}
.pop h4{margin:0 0 10px;font-size:13px;color:var(--muted);font-weight:500}
.swatches{display:flex;gap:10px}
.swatches button{width:28px;height:28px;border-radius:50%;background:var(--c);box-shadow:0 0 0 2px var(--panel)}
.swatches button.on{box-shadow:0 0 0 2px var(--panel),0 0 0 4px var(--c)}
#langPop{width:180px;padding:6px}
#langPop button{display:flex;justify-content:space-between;width:100%;padding:10px 12px;border-radius:10px;font-size:15px;text-align:left}
#langPop button:hover{background:var(--panel2)}
#langPop button[aria-current="true"]::after{content:"✓";color:var(--disc)}

/* 아래 설명 */
.info{max-width:680px;margin:0 auto;padding:24px 16px 80px;border-top:1px solid var(--line);color:#c7c7cc}
.info h2{color:var(--text);font-size:22px;margin:40px 0 10px;letter-spacing:-.01em}
.info p,.info li{font-size:15px}
.info ul{padding-left:20px}
.info details{border-bottom:1px solid var(--line);padding:12px 0}
.info summary{cursor:pointer;color:var(--text);font-weight:600}
kbd{background:var(--panel2);border-radius:5px;padding:1px 6px;font-family:inherit;font-size:13px}
footer{color:var(--muted);font-size:13px;text-align:center;padding:0 16px 40px}

/* 알림 반짝임 (초당 1회로 천천히) */
.flashlayer{position:fixed;inset:0;pointer-events:none;z-index:7;opacity:0;
  background:radial-gradient(circle at 50% 42%,color-mix(in srgb,var(--disc) 55%,transparent),transparent 65%)}
body.flash .flashlayer{animation:flash 1s ease-in-out infinite}
@keyframes flash{0%,100%{opacity:0}45%{opacity:1}}
@media (prefers-reduced-motion: reduce){ body.flash .flashlayer{animation:none;opacity:.6} }

:fullscreen .info,:fullscreen footer{display:none}
:fullscreen .dial{--size:min(86vw,64vh)}

/* 휴대폰: 위 메뉴를 둘째 줄로 내려 아이콘과 겹치지 않게 (일본어 등 긴 메뉴도 들어가게) */
@media (max-width:640px){
  .top{height:auto;flex-wrap:wrap;padding:6px 12px 0}
  .nav{position:static;transform:none;order:3;width:100%;justify-content:center;gap:20px;padding:2px 0}
  .stage{padding-top:96px}
}