/* Xiao Cui Nail Notes — bản 2. Chữ to cho người đọc trên 40; hộp an toàn và lời khai báo luôn nhìn thấy. */
:root{
  --bg:#fbf8f7; --surface:#ffffff; --fg:#26222a; --muted:#5f5762; --line:#e6dde0;
  --accent:#8a2d4f; --accent-soft:#f4e3ea; --warn-bg:#fff4e0; --warn-fg:#6b4300; --ok:#2f6b4a; --no:#9a3a2a;
  --display:"Young Serif",Georgia,serif; --body:"Atkinson Hyperlegible",Verdana,"Segoe UI",sans-serif;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#1c181d; --surface:#262027; --fg:#f2ecef; --muted:#bdb2b9; --line:#3b3239;
  --accent:#e58bab; --accent-soft:#3a2530; --warn-bg:#3a2e17; --warn-fg:#ffd58f; --ok:#8fd1aa; --no:#f0a090; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#1c181d; --surface:#262027; --fg:#f2ecef; --muted:#bdb2b9; --line:#3b3239;
  --accent:#e58bab; --accent-soft:#3a2530; --warn-bg:#3a2e17; --warn-fg:#ffd58f; --ok:#8fd1aa; --no:#f0a090; color-scheme:dark}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--body);font-size:19px;line-height:1.65}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent)}
a:focus-visible,button:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
html[data-lang="en"] [lang="vi"]{display:none!important}
html[data-lang="vi"] [lang="en"]{display:none!important}
.wrap{max-width:46rem;margin:0 auto;padding:0 16px}
.wide{max-width:60rem}
h1,h2,h3{font-family:var(--display);font-weight:400;line-height:1.2;margin:0;text-wrap:balance}
h1{font-size:clamp(34px,6vw,48px)}
h2{font-size:clamp(26px,4.4vw,34px)}
h3{font-size:22px}
p{margin:0}
.eyebrow{font-size:14px;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);font-weight:700}
.muted{color:var(--muted)}
.draft{background:var(--accent-soft);font-size:15px}
.draft .wrap{padding-block:8px}
header{border-bottom:1px solid var(--line)}
header .wrap{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;padding-block:18px}
.brand{font-family:var(--display);font-size:24px;color:var(--fg);text-decoration:none}
nav{display:flex;gap:16px;flex-wrap:wrap;font-size:17px}
.lang{display:flex;border:1px solid var(--line);border-radius:999px;overflow:hidden}
.lang button{border:0;background:transparent;color:var(--muted);font:700 14px var(--body);padding:6px 12px;cursor:pointer}
.lang button[aria-pressed="true"]{background:var(--accent);color:#fff}
section{padding-block:44px;border-top:1px solid var(--line)}
section:first-of-type{border-top:0}
.stack{display:flex;flex-direction:column;gap:18px}
.lede{font-size:21px;color:var(--muted)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden;display:flex;flex-direction:column}
.card .body{padding:18px 20px;display:flex;flex-direction:column;gap:8px}
.card img{aspect-ratio:16/9;object-fit:cover;width:100%}
a.card{text-decoration:none;color:var(--fg)}
a.card:hover h3{color:var(--accent)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:640px){.grid2{grid-template-columns:1fr}}
.tag{display:inline-block;font-size:14px;padding:2px 10px;border-radius:999px;background:var(--accent-soft);color:var(--fg)}
.soon{opacity:.75}
.safety{background:var(--warn-bg);color:var(--warn-fg);border-radius:12px;padding:20px 22px;display:flex;flex-direction:column;gap:10px}
.safety h2,.safety h3{color:var(--warn-fg)}
.safety ul{margin:0;padding-left:1.2em}
.disclose{border:1px dashed var(--line);border-radius:12px;padding:16px 20px;font-size:17px;color:var(--muted)}
ul.rules{margin:0;padding-left:1.2em;display:flex;flex-direction:column;gap:8px}
.author{display:grid;grid-template-columns:96px 1fr;gap:18px;align-items:center}
.author img{width:96px;height:96px;border-radius:50%;object-fit:cover;object-position:center 25%}
.facts{width:100%;border-collapse:collapse;font-size:17px}
.facts th,.facts td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--line);vertical-align:top}
.facts th{width:38%;color:var(--muted);font-weight:400}
.facts td{font-variant-numeric:tabular-nums}
.pc{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:640px){.pc{grid-template-columns:1fr}}
.pc > div{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:18px 20px}
.pc h3{font-size:20px;margin-bottom:8px}
.pc .good h3{color:var(--ok)} .pc .bad h3{color:var(--no)}
.pc ul{margin:0;padding-left:1.2em;display:flex;flex-direction:column;gap:6px}
figure{margin:0}
figure img{border-radius:12px;width:100%}
figcaption{font-size:15px;color:var(--muted);margin-top:6px}
.todo{background:var(--accent-soft);border-left:4px solid var(--accent);padding:12px 16px;border-radius:6px;font-size:16px}
.verdict{background:var(--surface);border:2px solid var(--accent);border-radius:12px;padding:20px 22px;display:flex;flex-direction:column;gap:10px}
footer{border-top:1px solid var(--line);color:var(--muted);font-size:16px}
footer .wrap{padding-block:28px 40px;display:flex;flex-direction:column;gap:10px}