/* Pretendard (SIL OFL 1.1, fonts/OFL.txt) — subset to this page's characters */
@font-face{font-family:"Pretendard";src:url("/flu/fonts/pretendard-500.woff2") format("woff2");font-weight:500;font-display:swap}
@font-face{font-family:"Pretendard";src:url("/flu/fonts/pretendard-700.woff2") format("woff2");font-weight:700;font-display:swap}
@font-face{font-family:"Pretendard";src:url("/flu/fonts/pretendard-800.woff2") format("woff2");font-weight:800;font-display:swap}

/* Light only: opt out of iOS dark mode and Samsung Internet / Chrome forced dark */
:root{
  color-scheme:only light;
  --bg:#F5F5F7;
  --ink:#1d1d1f;
  --ink-2:#424245;
  --ink-3:#6e6e73;
  --line:#e5e5ea;
  --red:#d70015;
  --blue:#1D4ED8; /* labels: subtitles, '사실' (same blue as the aro. card news) */
  --card:#ffffff;
  --pad:24px;
  --nav-h:76px; /* bottom "← 이전 · n / 22 · 다음 →" bar */
  --ph:56;      /* photo height, in % of the card height */
  --fade:.42;   /* bottom share of the photo that fades into the page */
}
*,*::before,*::after{box-sizing:border-box}
html,body{height:100%;overflow:hidden}
html{background:var(--bg);-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:"Pretendard",-apple-system,"Apple SD Gothic Neo","Noto Sans KR",sans-serif;
  font-weight:500;font-size:1.1875rem;line-height:1.5;
  word-break:keep-all;overflow-wrap:break-word;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
b{font-weight:800;color:var(--ink)}

/* ---------- deck: one screen, cards swiped left and right (works without JS) ---------- */
.deck{
  display:flex;height:100vh;height:100svh;
  overflow-x:auto;overflow-y:hidden;scroll-snap-type:x mandatory;
  overscroll-behavior-x:contain;-webkit-overflow-scrolling:touch;scrollbar-width:none;outline:none;
}
.deck::-webkit-scrollbar{display:none}
.slide{
  position:relative;flex:0 0 100%;width:100%;height:100%;
  scroll-snap-align:start;scroll-snap-stop:always;
  /* a card taller than the screen (large text) scrolls up and down inside itself */
  overflow-x:hidden;overflow-y:auto;
  display:flex;flex-direction:column;background:var(--bg);
}

/* ---------- photo on top, fading into the page; text at the bottom ---------- */
.slide__photo{position:absolute;left:0;right:0;top:0;height:calc(var(--ph) * 1%);margin:0;overflow:hidden}
.slide__photo img{width:100%;height:100%;max-width:none;object-fit:cover}
.slide__photo::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:calc(var(--fade) * 100%);pointer-events:none;
  background:linear-gradient(180deg,rgba(245,245,247,0),var(--bg));
}
/* information-heavy cards give the photo less room (review 2026-11-02) */
.slide--alert{--ph:34;--fade:.30}
.slide--dense{--ph:32;--fade:.30}
[data-slide="20"]{--ph:38;--fade:.30}
.slide--vaccine{--ph:42;--fade:.32}
.ai-label{
  position:absolute;right:14px;top:14px;z-index:2;
  font-size:.6875rem;font-weight:700;line-height:1.4;color:#fff;
  background:rgba(0,0,0,.42);padding:3px 9px;border-radius:99px;
}
/* text never starts above the faded part of the photo; if it grows, the card scrolls */
.slide__text{
  position:relative;z-index:1;margin-top:auto;
  padding:calc(var(--ph) * (1 - var(--fade)) * 1vh) var(--pad) calc(var(--nav-h) + 20px);
}
@supports (height:1svh){
  .slide__text{padding-top:calc(var(--ph) * (1 - var(--fade)) * 1svh)}
}
html:not(.js) .slide__text{padding-bottom:40px}

/* ---------- type ---------- */
/* subtitles sit on the photo's fade: a square dark label with light text so they always read */
.eyebrow{display:inline-block;margin:0;padding:.22rem .6rem;border-radius:0;background:var(--ink);font-size:.9375rem;font-weight:800;letter-spacing:.02em;line-height:1.4;color:#fff}
.eyebrow--alert{background:var(--red)}
.title{margin:.5rem 0 0;font-size:min(2.1875rem,10vw);font-weight:800;letter-spacing:-.045em;line-height:1.14;color:var(--ink)}
.body{margin:.875rem 0 0;color:var(--ink-2)}
.ln{display:block}
.list{list-style:none;margin:.875rem 0 0;padding:0;color:var(--ink-2)}
.li{position:relative;padding-left:1rem}
.li::before{content:"";position:absolute;left:.15rem;top:.68em;width:.375rem;height:.375rem;border-radius:50%;background:currentColor}
.n119{color:var(--red)}
.fine{margin:.75rem 0 0;font-size:.875rem;font-weight:600;color:var(--ink-3)}
.stat{margin:1rem 0 0;display:flex;flex-direction:column}
.stat__fig{font-size:2.875rem;font-weight:800;letter-spacing:-.04em;line-height:1.1}
.stat__label{margin-top:.125rem;font-size:1.0625rem;font-weight:800;color:var(--ink)}
.stat__src{margin-top:.125rem;font-size:.875rem;font-weight:600;color:var(--ink-3)}
.stat__note{margin-top:.125rem;font-size:.875rem;font-weight:700;color:var(--ink-2)}
.hint{margin-top:.5rem;color:var(--ink-3);font-weight:700}
.tag{display:block;margin:0;font-size:.9375rem;font-weight:800;letter-spacing:.04em;color:var(--ink)}

/* 1 · cover */
.slide--cover{--ph:58;--fade:.38}
.slide--cover .title{font-size:min(2.5rem,9.4vw)}

/* 11–14 · myths: the misconception, then the fact right below */
.slide--myth{--ph:44;--fade:.40}
.slide--myth .tag{margin-top:.75rem}
.slide--myth .title{margin-top:.25rem;font-size:min(1.75rem,8vw)}
.fact{margin-top:1.5rem;background:var(--card);border-radius:20px;padding:1rem 1rem 1.125rem}
.fact .tag--fact{margin:0 0 .25rem;color:var(--blue)}
.fact .body{margin:0;font-size:1.0625rem;line-height:1.5;color:var(--ink-2)}

/* 19 · contact + hours + footer (small print, kept well below) */
.slide--contact{--ph:32;--fade:.40}
.hours__title{margin:1.25rem 0 .5rem;font-size:.9375rem;font-weight:800;color:var(--ink)}
.hours-box{background:var(--card);border-radius:18px;overflow:hidden}
.hours{width:100%;border-collapse:separate;border-spacing:0;font-size:.9375rem;line-height:1.5;color:var(--ink-2)}
.hours th,.hours td{padding:.75rem .625rem;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
.hours tbody tr:last-child th,.hours tbody tr:last-child td{border-bottom:0}
.hours thead th{font-size:.8125rem;font-weight:800;color:var(--ink-3)}
.hours tbody th{font-weight:800;color:var(--ink)}
.hours__note{font-size:1.0625rem}
.site-footer{margin-top:3rem;padding-top:.875rem;border-top:1px solid var(--line);font-size:.6875rem;line-height:1.55;color:var(--ink-3)}
.site-footer p{margin:0}
.site-footer b{font-weight:700;color:var(--ink-2)}
.site-footer a{color:var(--ink);font-weight:800}

/* ---------- card 8 / 20 extras ---------- */
.urgent{color:var(--ink)}
.sub{margin:1rem 0 0;font-size:.9375rem;font-weight:800;color:var(--ink)}

/* 22 · sources */
.slide--sources .slide__text{margin:auto 0;padding:64px var(--pad) calc(var(--nav-h) + 20px)}
.sources{margin:1rem 0 0;padding-left:1.25rem;display:flex;flex-direction:column;gap:.75rem;font-size:.9375rem;line-height:1.45}
.sources a{color:var(--ink);font-weight:800}
.sources span{display:block;color:var(--ink-2);font-size:.875rem}

/* ---------- navigation (needs JS; hidden without it — swiping still works) ---------- */
.deck-progress{position:fixed;left:0;right:0;top:0;z-index:6;height:3px;background:rgba(0,0,0,.06)}
.deck-progress span{display:block;height:100%;background:var(--ink);transform-origin:0 50%;transform:scaleX(.0455)}
.deck-nav{
  position:fixed;left:0;right:0;bottom:0;z-index:5;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px var(--pad) 14px;
  background:linear-gradient(180deg,rgba(245,245,247,0),rgba(245,245,247,.94) 38%,var(--bg));
}
html:not(.js) .deck-nav,html:not(.js) .deck-progress{display:none}
.deck-nav button{
  min-height:48px;padding:0 1.15rem;border:0;border-radius:99px;cursor:pointer;
  font:inherit;font-size:1rem;font-weight:800;-webkit-tap-highlight-color:transparent;
}
.deck-nav__prev{background:var(--card);color:var(--ink);box-shadow:inset 0 0 0 1px var(--line)}
.deck-nav__next{background:var(--ink);color:#fff}
.deck-nav button:disabled{opacity:.3;cursor:default}
.deck-nav button:focus-visible{outline:3px solid var(--ink);outline-offset:2px}
.deck-nav__count{margin:0;font-size:.9375rem;font-weight:700;color:var(--ink-3);font-variant-numeric:tabular-nums}
.deck-nav__now{color:var(--ink)}

/* ---------- motion while swiping (JS sets --o: -1…1 card offset, --a: its size) ---------- */
@media (prefers-reduced-motion:no-preference){
  html.js .slide__text{transform:translateX(calc(var(--o, 0) * 22%));opacity:calc(1 - var(--a, 0) * .7)}
  html.js .slide__photo img{transform:scale(calc(1 + .1 * var(--a, 0)))}
}

/* ---------- short or landscape screens: photo above the text, card scrolls ---------- */
@media (max-height:500px){
  .slide__photo{position:relative;flex:none;height:56vw}
  .slide__text{margin:0;padding:20px var(--pad) calc(var(--nav-h) + 16px)}
}