/* ===========================================================
   Mewly — Cẩm nang Mèo (blog) · style dùng chung
   Đồng bộ palette + font với trang chủ (Nunito)
   =========================================================== */
:root{
  --cream:#F5EFE2;--cream-2:#EAE0CE;--white:#FFFDF8;
  --sage:#7E9A77;--sage-dark:#5E7355;--terra:#C8694A;--terra-dark:#A8512F;
  --apricot:#E89B4B;--ink:#3E3A33;--muted:#8C8678;
  --radius:18px;--shadow:0 10px 34px rgba(62,58,51,.09);--shadow-sm:0 4px 16px rgba(62,58,51,.07);
  --maxw:760px;--maxw-wide:1080px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Nunito',-apple-system,BlinkMacSystemFont,sans-serif;color:var(--ink);background:var(--cream);line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--terra);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--maxw-wide);margin:0 auto;padding:0 22px}
:focus-visible{outline:3px solid var(--sage);outline-offset:3px;border-radius:6px}

/* ===== HEADER ===== */
header{position:sticky;top:0;z-index:50;background:rgba(245,239,226,.94);backdrop-filter:blur(10px);border-bottom:1px solid rgba(94,115,85,.14)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px;max-width:var(--maxw-wide);margin:0 auto;padding:0 22px;gap:14px}
.brand{display:flex;align-items:center;gap:9px;color:var(--sage);font-weight:800;font-size:21px;letter-spacing:-.02em}
.brand:hover{text-decoration:none}
.brand img{height:36px;width:auto;flex-shrink:0}
.nav-links{display:flex;align-items:center;gap:20px}
.nav-links a{color:var(--ink);font-weight:600;font-size:15px}
.nav-links a:hover{color:var(--sage-dark);text-decoration:none}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;font-size:15px;padding:11px 18px;border-radius:999px;background:var(--terra);color:#fff;min-height:44px;border:none;cursor:pointer;transition:transform .15s,background .15s;white-space:nowrap}
.btn:hover{background:var(--terra-dark);transform:translateY(-2px);text-decoration:none;color:#fff}
.btn svg{width:18px;height:18px;fill:currentColor}
.btn-lg{padding:15px 26px;font-size:16px;min-height:52px}

/* ===== BREADCRUMB ===== */
.crumb{font-size:13.5px;color:var(--muted);padding:18px 0 0}
.crumb a{color:var(--sage-dark);font-weight:600}
.crumb span{margin:0 6px;opacity:.6}

/* ===== BLOG LIST (index) ===== */
.blog-hero{text-align:center;padding:48px 0 20px;max-width:680px;margin:0 auto}
.blog-hero .eyebrow{color:var(--sage-dark);font-weight:700;font-size:13px;letter-spacing:.09em;text-transform:uppercase}
.blog-hero h1{font-size:clamp(30px,4.5vw,44px);font-weight:800;letter-spacing:-.02em;margin:10px 0 12px;line-height:1.15}
.blog-hero p{color:var(--muted);font-size:17px}
.pill-row{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin:22px 0 10px}
.pill{background:var(--white);border:1px solid rgba(94,115,85,.18);color:var(--sage-dark);font-weight:600;font-size:13.5px;padding:6px 14px;border-radius:999px;box-shadow:var(--shadow-sm)}

.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;padding:26px 0 10px}
.pcard{background:var(--white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;transition:transform .15s,box-shadow .15s;border:1px solid rgba(94,115,85,.08)}
.pcard:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.pcard .thumb{aspect-ratio:16/10;width:100%;object-fit:cover;background:var(--cream-2)}
.pcard .pc-body{padding:20px;display:flex;flex-direction:column;gap:9px;flex:1}
.pcard .cat{font-size:12px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--apricot)}
.pcard h2{font-size:19px;font-weight:800;line-height:1.3;letter-spacing:-.01em}
.pcard h2 a{color:var(--ink)}
.pcard h2 a:hover{color:var(--terra);text-decoration:none}
.pcard p{font-size:14.5px;color:var(--muted);flex:1}
.pcard .read{font-weight:700;color:var(--terra);font-size:14px}
.pcard.soon{opacity:.72}
.pcard.soon .thumb{filter:grayscale(.35)}
.badge-soon{align-self:flex-start;background:var(--cream-2);color:var(--muted);font-size:11.5px;font-weight:700;padding:3px 10px;border-radius:999px;text-transform:uppercase;letter-spacing:.05em}
.tier-label{grid-column:1/-1;font-size:13px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--sage-dark);margin-top:14px}

/* ===== ARTICLE ===== */
.article{max-width:var(--maxw);margin:0 auto;padding:0 22px 20px}
.article-head{padding:14px 0 8px}
.article-head .cat{font-size:12.5px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--apricot)}
.article h1{font-size:clamp(28px,4.4vw,40px);font-weight:800;line-height:1.2;letter-spacing:-.02em;margin:10px 0 14px}
.byline{display:flex;align-items:center;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:14px;padding-bottom:20px;border-bottom:1px solid rgba(94,115,85,.16)}
.byline .who{display:flex;align-items:center;gap:9px}
.byline .ava{width:38px;height:38px;border-radius:50%;background:var(--sage);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px}
.byline b{color:var(--ink);font-weight:700}
.hero-fig{margin:24px 0}
.hero-fig img{border-radius:var(--radius);box-shadow:var(--shadow-sm);width:100%}
figure figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px}

.prose{font-size:17px}
.prose p{margin:18px 0}
.prose .lead{font-size:19px;color:var(--ink);font-weight:500}
.prose h2{font-size:26px;font-weight:800;letter-spacing:-.015em;margin:38px 0 12px;line-height:1.25;scroll-margin-top:80px}
.prose h3{font-size:20px;font-weight:700;margin:26px 0 8px;color:var(--sage-dark)}
.prose ul,.prose ol{margin:16px 0 16px 4px;padding-left:22px}
.prose li{margin:8px 0}
.prose strong{color:var(--ink)}
.prose a{font-weight:600;text-decoration:underline;text-underline-offset:2px}
.prose blockquote{margin:22px 0;padding:14px 20px;background:var(--white);border-left:4px solid var(--sage);border-radius:0 12px 12px 0;color:var(--ink);box-shadow:var(--shadow-sm)}
.callout{background:var(--white);border:1px solid rgba(94,115,85,.18);border-radius:var(--radius);padding:20px 22px;margin:24px 0;box-shadow:var(--shadow-sm)}
.callout h3{margin-top:0}

/* price table */
.table-wrap{overflow-x:auto;margin:22px 0}
table{border-collapse:collapse;width:100%;font-size:15.5px;background:var(--white);border-radius:12px;overflow:hidden;box-shadow:var(--shadow-sm)}
th,td{text-align:left;padding:13px 16px;border-bottom:1px solid rgba(94,115,85,.14)}
thead th{background:var(--sage);color:#fff;font-weight:700;font-size:14.5px}
tbody tr:last-child td{border-bottom:none}
tbody tr:nth-child(even){background:rgba(234,224,206,.35)}
td .price{font-weight:800;color:var(--terra)}

/* FAQ */
.faq{margin:30px 0 8px}
.faq h2{margin-bottom:8px}
details{background:var(--white);border:1px solid rgba(94,115,85,.16);border-radius:12px;padding:0 18px;margin:10px 0;box-shadow:var(--shadow-sm)}
details summary{list-style:none;cursor:pointer;font-weight:700;font-size:16.5px;padding:16px 0;display:flex;justify-content:space-between;align-items:center;gap:12px;color:var(--ink)}
details summary::-webkit-details-marker{display:none}
details summary::after{content:"+";font-size:24px;color:var(--sage);font-weight:400;line-height:1}
details[open] summary::after{content:"–"}
details .faq-a{padding:0 0 18px;color:var(--muted);font-size:15.5px}

/* author box + related + CTA */
.author-box{display:flex;gap:14px;align-items:flex-start;background:var(--white);border-radius:var(--radius);padding:22px;margin:30px 0;box-shadow:var(--shadow-sm)}
.author-box .ava{width:52px;height:52px;border-radius:50%;background:var(--sage);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:20px;flex-shrink:0}
.author-box b{font-size:16px}
.author-box p{font-size:14px;color:var(--muted);margin-top:3px}

.cta-band{background:var(--sage);color:#fff;border-radius:22px;padding:38px 28px;text-align:center;margin:34px 0}
.cta-band h2{font-size:24px;font-weight:800;margin-bottom:10px;color:#fff}
.cta-band p{opacity:.94;max-width:460px;margin:0 auto 20px;font-size:16px}
.cta-band .btn{background:#fff;color:var(--terra)}
.cta-band .btn:hover{background:#fff3ec;color:var(--terra-dark)}

.related{margin:40px 0}
.related h2{font-size:22px;font-weight:800;margin-bottom:18px}
.related-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.rel{position:relative;display:flex;flex-direction:column;gap:6px;background:var(--white);border-radius:16px;padding:18px 58px 18px 20px;box-shadow:var(--shadow-sm);border:1px solid rgba(94,115,85,.12);transition:transform .16s,box-shadow .16s,border-color .16s}
.related-list .rel{text-decoration:none}
.related-list .rel:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--sage);text-decoration:none}
.rel .cat{font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.07em;color:var(--apricot)}
.rel b{color:var(--ink);font-size:16px;font-weight:700;line-height:1.35;text-decoration:none}
.rel::after{content:"→";position:absolute;right:16px;top:50%;transform:translateY(-50%);width:32px;height:32px;border-radius:50%;background:var(--cream-2);color:var(--sage-dark);display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;transition:background .16s,color .16s,transform .16s}
.related-list .rel:hover::after{background:var(--terra);color:#fff}
.rel.soon{opacity:.6;pointer-events:none}
.rel.soon::after{content:"⋯";font-size:18px}

/* ===== FOOTER ===== */
footer{background:var(--cream-2);padding:44px 22px 36px;text-align:center;color:var(--muted);margin-top:20px}
.foot-logo{height:46px;width:auto;margin:0 auto 8px;display:block}
.foot-brand{font-weight:800;font-size:20px;color:var(--sage)}
.foot-links{display:flex;gap:20px;justify-content:center;margin:16px 0;flex-wrap:wrap}
.foot-links a{color:var(--sage-dark);font-weight:600;font-size:14.5px}
.foot-copy{font-size:12.5px;margin-top:8px}

/* floating messenger */
.fab{position:fixed;right:18px;bottom:18px;z-index:60;background:var(--terra);color:#fff;display:flex;align-items:center;gap:8px;padding:14px 18px;border-radius:999px;font-weight:700;box-shadow:0 10px 26px rgba(200,105,74,.4);transition:transform .15s}
.fab:hover{transform:translateY(-2px);text-decoration:none;color:#fff}
.fab svg{width:22px;height:22px;fill:currentColor}

/* ===== RESPONSIVE ===== */
@media(max-width:900px){
  .post-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  .nav-links{gap:14px}
  .nav-links .hide-sm{display:none}
  .post-grid{grid-template-columns:1fr}
  .related-list{grid-template-columns:1fr}
  .prose{font-size:16px}
  .prose h2{font-size:23px}
  .fab .fab-text{display:none}
  .fab{padding:14px}
}