/*
Theme Name: Africa Safari Trip
Theme URI: https://africasafaritrip.com
Author: KAI Group
Description: Theme cho africasafaritrip.com — video YouTube, mạng lưới kênh, blog và khối đặt tour affiliate. Gồm các loại nội dung Video, Kênh YouTube, Tour và hai phân loại Chủ đề (Safari, Tribes, Culture, History) và Vùng.
Version: 1.2.0
Requires at least: 6.0
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: ast
*/

/* ================= THEME ================= */
:root{
  --bg:#EADBBC;          /* dry-season dust */
  --surface:#F5ECD9;
  --ink:#1F1A12;
  --muted:#5E5240;
  --line:#CDB98F;
  --night:#1C2A22;       /* acacia at dusk */
  --night-ink:#EFE6D2;
  --p-safari:#2F5D3A;  --p-tribes:#8A4A1C;  --p-culture:#A87B12;  --p-history:#34497A;
  --display:"Archivo", "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  --body:"Source Serif 4", Georgia, "Times New Roman", serif;
  color-scheme:light;
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px);
  padding-bottom:env(safe-area-inset-bottom,0px);
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#16130E; --surface:#211C15; --ink:#EDE3CF; --muted:#B3A68C; --line:#3A3226;
    --night:#0F1813; --night-ink:#EDE3CF;
    --p-safari:#7DBB8A; --p-tribes:#E0935A; --p-culture:#E3B84A; --p-history:#93A9E0;
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#16130E; --surface:#211C15; --ink:#EDE3CF; --muted:#B3A68C; --line:#3A3226;
  --night:#0F1813; --night-ink:#EDE3CF;
  --p-safari:#7DBB8A; --p-tribes:#E0935A; --p-culture:#E3B84A; --p-history:#93A9E0;
  color-scheme:dark;
}
html{scroll-padding-top:calc(env(safe-area-inset-top,0px) + 72px)}
*,*::before,*::after{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:1.0625rem;line-height:1.7}
img{max-width:100%;display:block}
a{color:inherit}
button{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--p-safari);outline-offset:3px;border-radius:3px}
.wrap{max-width:1200px;margin:0 auto;padding:0 1.25rem}
.view[hidden]{display:none}

/* ================= HEADER ================= */
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:10;background:var(--bg)}
header.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:9;background:var(--bg);border-bottom:1.5px solid var(--ink)}
.top .wrap{display:flex;align-items:center;gap:1.5rem;min-height:62px}
.brand{font-family:var(--display);font-weight:900;font-stretch:75%;font-size:1.35rem;text-decoration:none;white-space:nowrap;letter-spacing:-.01em}
.brand b{font-weight:500}
nav.tabs{display:flex;gap:.1rem;overflow-x:auto;scrollbar-width:none;margin-left:auto}
nav.tabs::-webkit-scrollbar{display:none}
nav.tabs a{font-family:var(--display);font-weight:700;font-stretch:88%;font-size:.95rem;text-decoration:none;padding:.4rem .7rem;white-space:nowrap;border-bottom:3px solid transparent;color:var(--muted)}
nav.tabs a:hover{color:var(--ink)}
nav.tabs a[aria-current="page"]{color:var(--ink);border-bottom-color:var(--pc,var(--ink))}

/* ================= HERO ================= */
.hero{background:var(--night);color:var(--night-ink)}
.hero .wrap{display:grid;grid-template-columns:1.05fr 1fr;gap:2.5rem;align-items:center;padding-top:3.5rem;padding-bottom:3.5rem}
.hero h1{font-family:var(--display);font-weight:900;font-stretch:72%;font-size:clamp(3rem,8vw,6.4rem);line-height:.9;letter-spacing:-.02em;margin:0 0 1.2rem}
.hero p{font-size:1.15rem;max-width:40ch;margin:0 0 1.6rem;opacity:.85}
.hero .ctas{display:flex;flex-wrap:wrap;gap:.6rem}
.btn{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--display);font-weight:700;font-size:.98rem;text-decoration:none;padding:.7rem 1.15rem;border-radius:4px;border:1.5px solid currentColor;cursor:pointer;background:transparent}
.btn.solid{background:#C4302B;border-color:#C4302B;color:#fff}
.hero .player{position:relative}
.hero .player .cap{font-family:var(--display);font-size:.88rem;opacity:.7;margin-top:.6rem}

/* ================= PILLARS ================= */
.pillars{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1.5px solid var(--ink)}
.pillar{display:block;text-decoration:none;padding:1.6rem 1.25rem 1.4rem;border-right:1.5px solid var(--ink);position:relative}
.pillar:last-child{border-right:0}
.pillar::before{content:"";position:absolute;left:0;right:0;top:0;height:7px;background:var(--pc)}
.pillar h2{font-family:var(--display);font-weight:900;font-stretch:75%;font-size:clamp(1.6rem,3vw,2.4rem);line-height:1;margin:.3rem 0 .5rem;color:var(--pc)}
.pillar p{margin:0;font-size:.98rem;color:var(--muted)}
.pillar .n{font-family:var(--display);font-size:.85rem;color:var(--muted);margin-top:.8rem;display:block}
.pillar:hover h2{text-decoration:underline;text-underline-offset:5px;text-decoration-thickness:3px}

/* ================= SECTIONS ================= */
.section{padding:3rem 0 1rem}
.shead{display:flex;align-items:baseline;justify-content:space-between;gap:1rem;margin-bottom:1.4rem}
.shead h2{font-family:var(--display);font-weight:900;font-stretch:80%;font-size:clamp(1.7rem,3.2vw,2.3rem);margin:0;line-height:1.05}
.shead a{font-family:var(--display);font-weight:700;font-size:.95rem;color:var(--muted)}
.page-head{padding:2.8rem 0 1.4rem;border-bottom:1.5px solid var(--ink);margin-bottom:2rem}
.page-head h1{font-family:var(--display);font-weight:900;font-stretch:72%;font-size:clamp(2.8rem,7vw,5rem);line-height:.92;margin:0 0 .8rem;color:var(--pc,var(--ink))}
.page-head p{margin:0;max-width:62ch;color:var(--muted);font-size:1.1rem}
.filters{display:flex;flex-wrap:wrap;gap:.4rem;margin:0 0 1.8rem}
.filters button{border:1.5px solid var(--line);background:transparent;padding:.3rem .8rem;border-radius:999px;font-family:var(--display);font-size:.88rem;font-weight:500;cursor:pointer}
.filters button[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:var(--bg)}
.filters .lbl{font-family:var(--display);font-size:.88rem;color:var(--muted);align-self:center;margin-right:.3rem}

/* ================= VIDEO CARDS ================= */
.vgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:1.8rem 1.3rem}
.vcard{background:none;border:0;padding:0;text-align:left;cursor:pointer;display:flex;flex-direction:column;gap:.5rem}
.thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--pc);border-radius:3px}
.thumb img{width:100%;height:100%;object-fit:cover}
.thumb .ph{position:absolute;inset:0;display:flex;align-items:flex-end;padding:.8rem;color:#fff;font-family:var(--display);font-weight:900;font-stretch:75%;font-size:1.6rem;line-height:1}
.thumb .dur{position:absolute;right:.45rem;bottom:.45rem;background:rgba(0,0,0,.78);color:#fff;font-family:var(--display);font-size:.78rem;padding:.05rem .4rem;border-radius:3px}
.thumb .play{position:absolute;inset:0;display:grid;place-items:center;opacity:0;transition:opacity .15s;background:rgba(0,0,0,.22)}
.thumb .play svg{width:56px;height:56px}
.vcard:hover .play,.vcard:focus-visible .play{opacity:1}
.vcard h3{font-family:var(--display);font-weight:700;font-size:1.06rem;line-height:1.3;margin:0}
.meta{font-family:var(--display);font-size:.84rem;color:var(--muted);display:flex;flex-wrap:wrap;align-items:center;gap:.4rem}
.tag{display:inline-block;font-weight:700;color:var(--pc)}

/* ================= CHANNELS ================= */
.chgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,460px),1fr));gap:1.6rem}
.ch{background:var(--surface);border:1.5px solid var(--ink);display:flex;flex-direction:column}
.ch .embed{margin:0;border-radius:0}
.ch-body{padding:1.1rem 1.2rem 1.3rem;display:flex;flex-direction:column;gap:.7rem;flex:1}
.ch-top{display:flex;align-items:center;gap:.8rem}
.avatar{width:52px;height:52px;border-radius:50%;flex:none;background:var(--pc);color:#fff;display:grid;place-items:center;font-family:var(--display);font-weight:900;font-size:1.1rem;overflow:hidden}
.avatar img{width:100%;height:100%;object-fit:cover}
.ch h3{font-family:var(--display);font-weight:900;font-stretch:85%;font-size:1.4rem;margin:0;line-height:1.1}
.ch .handle{font-family:var(--display);font-size:.88rem;color:var(--muted)}
.ch p{margin:0;font-size:.98rem}
.ch .actions{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:auto;padding-top:.3rem}
.ch .actions .btn{font-size:.9rem;padding:.55rem .95rem}
.badge{font-family:var(--display);font-size:.78rem;font-weight:700;padding:.15rem .55rem;border-radius:999px;background:var(--ink);color:var(--bg)}
.invite{border:1.5px dashed var(--muted);padding:1.6rem;display:flex;flex-direction:column;gap:.6rem;justify-content:center}
.invite h3{font-family:var(--display);font-weight:900;font-size:1.3rem;margin:0}
.invite p{margin:0;color:var(--muted)}

/* ================= BLOG ================= */
.plist{display:grid}
.post{display:grid;grid-template-columns:220px 1fr;gap:1.4rem;padding:1.4rem 0;border-bottom:1px solid var(--line);text-decoration:none}
.post .cover{aspect-ratio:4/3;background:var(--pc);border-radius:3px;overflow:hidden}
.post .cover img{width:100%;height:100%;object-fit:cover}
.post h3{font-family:var(--display);font-weight:900;font-stretch:85%;font-size:1.5rem;line-height:1.15;margin:.25rem 0 .45rem}
.post p{margin:0;color:var(--muted);max-width:62ch}
.post:hover h3{text-decoration:underline;text-underline-offset:4px}

article.read{max-width:68ch;margin:0 auto;padding:2.6rem 0 4rem}
article.read .back{font-family:var(--display);font-weight:700;font-size:.92rem;color:var(--muted);text-decoration:none}
article.read h1{font-family:var(--display);font-weight:900;font-stretch:78%;font-size:clamp(2.2rem,5.5vw,3.6rem);line-height:1;margin:1rem 0 .7rem}
article.read .meta{margin-bottom:2rem}
article.read .body p{margin:0 0 1.2em}
article.read .body h2{font-family:var(--display);font-weight:900;font-size:1.5rem;margin:2.2rem 0 .6rem}
.watchmore{margin-top:2.5rem;border-top:1.5px solid var(--ink);padding-top:1.2rem;display:flex;align-items:center;gap:1rem;flex-wrap:wrap}
.watchmore .t{flex:1;min-width:220px}
.watchmore strong{font-family:var(--display);font-size:1.15rem;display:block}
.watchmore span{color:var(--muted);font-size:.95rem}

/* ================= EMBEDS & MODAL ================= */
.embed{position:relative;aspect-ratio:16/9;background:#000;overflow:hidden;border-radius:3px;margin:1.8rem 0}
.embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.embed .ph-note{position:absolute;inset:0;display:grid;place-items:center;text-align:center;padding:1rem;color:#fff;background:var(--pc,#333);font-family:var(--display)}
.hero .embed{margin:0}
dialog{border:0;padding:0;background:transparent;max-width:min(980px,94vw);width:100%}
dialog::backdrop{background:rgba(12,10,6,.85)}
.mbox{background:var(--surface)}
.mbox .embed{margin:0;border-radius:0}
.minfo{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem;padding:1rem 1.2rem}
.minfo h3{font-family:var(--display);margin:0 0 .25rem;font-size:1.2rem}
.minfo .side{display:flex;gap:.5rem;flex:none}
.minfo .btn{font-size:.88rem;padding:.45rem .85rem}

.empty{font-family:var(--display);color:var(--muted);padding:1.5rem 0}
footer{margin-top:3rem;background:var(--night);color:var(--night-ink);padding:2.4rem 0}
footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:1.5rem;font-family:var(--display);font-size:.92rem}
footer .brand{color:var(--night-ink)}
footer nav{display:flex;flex-wrap:wrap;gap:1rem}
footer a{opacity:.85}

/* ================= AFFILIATE ================= */
.disclosure{font-family:var(--display);font-size:.84rem;color:var(--muted);border-left:3px solid var(--line);padding:.35rem .8rem;margin:0 0 1.8rem;max-width:80ch}
.btn.aff{background:var(--p-safari);border-color:var(--p-safari);color:#fff}
.btn.pending{opacity:.55;cursor:not-allowed;border-style:dashed}
.booktrip{border:1.5px solid var(--ink);background:var(--surface);padding:1.2rem 1.3rem;margin:2rem 0}
.booktrip h3{font-family:var(--display);font-weight:900;font-size:1.3rem;margin:0 0 .8rem}
.booktrip .row{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:.7rem 0;border-top:1px solid var(--line)}
.booktrip .row strong{font-family:var(--display);display:block;line-height:1.3}
.booktrip .row span{font-size:.92rem;color:var(--muted)}
.booktrip .btn{font-size:.88rem;padding:.45rem .85rem;flex:none}
.planband{background:var(--night);color:var(--night-ink);padding:1.6rem 1.6rem;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1rem 2rem}
.planband strong{font-family:var(--display);font-weight:900;font-stretch:78%;font-size:clamp(1.6rem,3.4vw,2.3rem);display:block;line-height:1.05;margin-bottom:.3rem}
.planband span{opacity:.82;max-width:58ch;display:block}
.planband small{display:block;opacity:.6;font-family:var(--display);font-size:.78rem;margin-top:.5rem}
.planband .btn{flex:none}
#pillarRegions .planband{flex-basis:100%;margin-bottom:1.2rem}
#homeBook{margin-top:3rem}
footer .disc{flex-basis:100%;opacity:.7;font-size:.84rem;max-width:90ch}

@media (max-width:900px){
  .hero .wrap{grid-template-columns:1fr;padding-top:2.5rem;padding-bottom:2.5rem}
  .pillars{grid-template-columns:repeat(2,1fr)}
  .pillar:nth-child(2){border-right:0}
  .pillar:nth-child(-n+2){border-bottom:1.5px solid var(--ink)}
}
@media (max-width:640px){
  .post{grid-template-columns:110px 1fr;gap:1rem}
  .post h3{font-size:1.15rem}
  .post p{display:none}
  .minfo{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}

/* ================= WORDPRESS ================= */
nav.tabs ul{display:flex;gap:.1rem;list-style:none;margin:0;padding:0}
nav.tabs li{margin:0}
nav.tabs .current-menu-item > a,nav.tabs .current-menu-ancestor > a,nav.tabs a.is-current{color:var(--ink);border-bottom-color:var(--pc,var(--ink))}
footer nav ul{display:flex;flex-wrap:wrap;gap:1rem;list-style:none;margin:0;padding:0}
.filters a{border:1.5px solid var(--line);padding:.3rem .8rem;border-radius:999px;font-family:var(--display);font-size:.88rem;font-weight:500;text-decoration:none}
.filters a.on{background:var(--ink);border-color:var(--ink);color:var(--bg)}
a.vcard{text-decoration:none}
.entry-content{font-size:1.08rem}
.entry-content p{margin:0 0 1.2em}
.entry-content h2{font-family:var(--display);font-weight:900;font-size:1.5rem;margin:2.2rem 0 .6rem}
.entry-content h3{font-family:var(--display);font-weight:700;font-size:1.25rem;margin:1.8rem 0 .5rem}
.entry-content img{height:auto;border-radius:3px}
.entry-content figure{margin:1.8rem 0}
.entry-content figcaption{font-family:var(--display);font-size:.85rem;color:var(--muted);margin-top:.4rem}
.entry-content blockquote{border-left:4px solid var(--p-tribes);margin:1.6rem 0;padding:.2rem 0 .2rem 1.2rem;font-style:italic}
.entry-content ul,.entry-content ol{padding-left:1.3rem;margin:0 0 1.2em}
.pagination{display:flex;flex-wrap:wrap;gap:.4rem;margin:2.4rem 0 1rem;font-family:var(--display)}
.pagination .page-numbers{border:1.5px solid var(--line);padding:.35rem .8rem;text-decoration:none;border-radius:3px}
.pagination .current{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.single-video .lead{max-width:68ch;margin:0 auto}
.screen-reader-text{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(1px,1px,1px,1px);white-space:nowrap}
.skip-link:focus{position:fixed;top:.5rem;left:.5rem;z-index:100;background:var(--ink);color:var(--bg);padding:.5rem 1rem;clip:auto;width:auto;height:auto}
.alignwide{max-width:none}
.wp-block-image{margin:1.8rem 0}

/* ================= FOOTER v1.1 ================= */
footer{padding:3rem 0 1.5rem}
footer .wrap.fgrid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:2rem 3rem;font-family:var(--display);font-size:.95rem}
footer h2{font-family:var(--display);font-weight:900;font-stretch:85%;font-size:1.05rem;margin:0 0 .8rem}
.fbrand .brand{font-size:1.5rem}
.fbrand p{font-family:var(--body);opacity:.8;max-width:38ch;margin:.6rem 0 1rem}
footer nav ul{flex-direction:column;gap:.45rem}
footer a{text-decoration:none;opacity:.85}
footer a:hover{opacity:1;text-decoration:underline}
.fcontact ul{list-style:none;margin:0;padding:0;display:grid;gap:.6rem}
.fcontact a{display:inline-flex;align-items:center;gap:.55rem;word-break:break-all}
.fcontact svg{flex:none;width:18px;height:18px}
.socials{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:.5rem}
.socials a{display:grid;place-items:center;width:40px;height:40px;border:1.5px solid currentColor;border-radius:50%;opacity:.85}
.socials a:hover{opacity:1;background:var(--night-ink);color:var(--night);text-decoration:none}
footer .wrap.fbottom{display:block;border-top:1px solid rgba(239,230,210,.18);margin-top:2.2rem;padding-top:1.2rem;font-family:var(--display);font-size:.84rem}
.fbottom p{margin:0 0 .4rem;opacity:.75}
.fbottom .disc{opacity:.6;max-width:90ch}

/* ================= ABOUT ================= */
.about-hero .wrap{display:block;padding-top:3rem;padding-bottom:3rem}
.about-hero h1{font-size:clamp(2.8rem,7vw,5.2rem)}
.about-hero p{max-width:52ch}
.stats{display:flex;flex-wrap:wrap;gap:1rem 3rem;margin:2rem 0 0}
.stats div{border-left:3px solid var(--p-culture);padding-left:.9rem}
.stats dt{font-family:var(--display);font-weight:900;font-stretch:80%;font-size:2.4rem;line-height:1}
.stats dd{margin:.2rem 0 0;font-family:var(--display);font-size:.9rem;opacity:.8}
.about-grid{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(280px,1fr);gap:3rem;align-items:start;padding-top:2.8rem;padding-bottom:1rem}
.about-story h2{font-family:var(--display);font-weight:900;font-stretch:80%;font-size:clamp(1.6rem,3vw,2.1rem);margin:0 0 1rem}
.about-story h2:not(:first-child){margin-top:2.8rem}
.offers{display:grid;grid-template-columns:repeat(2,1fr);gap:1.4rem}
.offers div{border-top:4px solid var(--p-tribes);padding-top:.7rem}
.offers div:nth-child(2){border-color:var(--p-safari)}
.offers div:nth-child(3){border-color:var(--p-culture)}
.offers div:nth-child(4){border-color:var(--p-history)}
.offers h3{font-family:var(--display);font-weight:900;font-size:1.15rem;margin:0 0 .3rem}
.offers p{margin:0;font-size:.98rem}
.chlist{list-style:none;margin:0;padding:0}
.chlist li{display:flex;align-items:center;gap:1rem;padding:1rem 0;border-bottom:1px solid var(--line)}
.chlist li > div{flex:1;min-width:0}
.chlist strong{font-family:var(--display);font-size:1.1rem;display:block}
.chlist span:not(.avatar){font-size:.95rem;color:var(--muted)}
.chlist .btn{font-size:.85rem;padding:.45rem .85rem;flex:none}
.contact-card{position:sticky;top:calc(env(safe-area-inset-top,0px) + 84px);background:var(--surface);border:1.5px solid var(--ink);padding:1.5rem}
.contact-card h2{font-family:var(--display);font-weight:900;font-stretch:80%;font-size:1.8rem;margin:0 0 .5rem}
.contact-card > p{margin:0 0 1.2rem;font-size:.98rem}
.cbtns{display:grid;gap:.6rem;margin-bottom:1.4rem}
.cbtns .btn{justify-content:center}
.cbtns svg{width:18px;height:18px}
.btn.wa{background:#1F8F4E;border-color:#1F8F4E;color:#fff}
.cinfo{display:grid;grid-template-columns:auto 1fr;gap:.45rem 1rem;margin:0 0 1.3rem;font-size:.95rem}
.cinfo dt{font-family:var(--display);font-weight:700;color:var(--muted)}
.cinfo dd{margin:0;word-break:break-word}
.contact-card .socials a{color:var(--ink)}
.contact-card .socials a:hover{background:var(--ink);color:var(--bg)}
@media (max-width:900px){
  footer .wrap.fgrid{grid-template-columns:1fr 1fr}
  .fbrand{grid-column:1/-1}
  .about-grid{grid-template-columns:1fr}
  .contact-card{position:static}
}
@media (max-width:560px){
  footer .wrap.fgrid{grid-template-columns:1fr}
  .offers{grid-template-columns:1fr}
  .chlist li{flex-wrap:wrap}
}
footer nav.fcol{display:block}

/* =====================================================================
   v1.2 — RESPONSIVE, HOVER & UX
   ===================================================================== */
:root{--ease:cubic-bezier(.2,.7,.2,1);--hdr:64px}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media (min-width:1600px){.wrap{max-width:1320px}}

/* ---------- Header ---------- */
header.top{transition:box-shadow .25s var(--ease),background-color .25s}
header.top.is-scrolled{box-shadow:0 6px 24px -12px rgba(0,0,0,.35)}
.top .wrap{min-height:var(--hdr);gap:1rem;transition:min-height .25s var(--ease)}
header.top.is-scrolled .wrap{min-height:56px}
.brand{transition:opacity .2s}
.brand:hover{opacity:.75}

nav.tabs a{position:relative;border-bottom:0;padding:.55rem .75rem;border-radius:4px;transition:color .2s,background-color .2s}
nav.tabs a::after{content:"";position:absolute;left:.75rem;right:.75rem;bottom:.2rem;height:3px;border-radius:2px;background:var(--pc,var(--ink));transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease)}
nav.tabs a:hover{color:var(--ink);background:color-mix(in srgb,var(--pc,var(--ink)) 9%,transparent)}
nav.tabs a:hover::after,nav.tabs a:focus-visible::after,
nav.tabs .current-menu-item > a::after,nav.tabs a.is-current::after,nav.tabs a[aria-current="page"]::after{transform:scaleX(1)}
nav.tabs .current-menu-item > a,nav.tabs a.is-current{border-bottom:0}
.nav-extra{display:none}
.hdr-cta{font-size:.88rem;padding:.5rem .95rem;flex:none}
.nav-toggle{display:none}

/* ---------- Buttons & cards: hover / press ---------- */
.btn{transition:transform .15s var(--ease),box-shadow .2s,background-color .2s,color .2s,border-color .2s}
.btn:hover{transform:translateY(-1px);box-shadow:0 6px 16px -8px rgba(0,0,0,.45)}
.btn:active{transform:translateY(0);box-shadow:none}
.btn:not(.solid):not(.aff):not(.wa):not(.pending):hover{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.hero .btn:not(.solid):not(.aff):not(.wa):not(.pending):hover,.planband .btn:not(.solid):not(.aff):not(.wa):not(.pending):hover,footer .btn:not(.solid):not(.aff):not(.wa):not(.pending):hover{background:var(--night-ink);color:var(--night);border-color:var(--night-ink)}
.btn.solid:hover{background:#A82822;border-color:#A82822}
.btn.pending:hover{transform:none;box-shadow:none}

.thumb img,.post .cover img{transition:transform .5s var(--ease)}
.vcard:hover .thumb img,.vcard:focus-visible .thumb img{transform:scale(1.05)}
.vcard h3{transition:color .2s}
.vcard:hover h3{color:var(--pc)}
.post .cover{transition:box-shadow .3s}
.post:hover .cover img{transform:scale(1.05)}
.pillar{transition:background-color .25s}
.pillar:hover{background:color-mix(in srgb,var(--pc) 8%,transparent)}
.pillar::before{transition:height .25s var(--ease)}
.pillar:hover::before{height:12px}
.ch,.tour{transition:transform .25s var(--ease),box-shadow .25s}
.ch:hover{transform:translateY(-3px);box-shadow:0 14px 30px -18px rgba(0,0,0,.5)}
.filters a{transition:background-color .2s,border-color .2s,color .2s}
.filters a:not(.on):hover{border-color:var(--ink)}
.socials a{transition:background-color .2s,color .2s,transform .15s}
.socials a:hover{transform:translateY(-2px)}

/* ---------- YouTube "nhẹ" (bấm mới tải) ---------- */
.yt-facade{position:absolute;inset:0;cursor:pointer;background:var(--pc,var(--night));overflow:hidden}
.yt-facade.no-thumb{background:radial-gradient(120% 90% at 20% 10%,color-mix(in srgb,var(--pc,var(--p-safari)) 70%,#fff 0%) 0%,var(--night) 100%)}
.yt-facade img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease),filter .3s}
.yt-facade:hover img{transform:scale(1.03);filter:brightness(.85)}
.yt-play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:72px;height:52px;border:0;padding:0;background:none;cursor:pointer;transition:transform .2s var(--ease)}
.yt-play svg{width:100%;height:100%;filter:drop-shadow(0 4px 10px rgba(0,0,0,.4))}
.yt-facade:hover .yt-play,.yt-play:focus-visible{transform:translate(-50%,-50%) scale(1.1)}
.yt-cap{position:absolute;left:1rem;right:1rem;bottom:.9rem;color:#fff;font-family:var(--display);font-weight:700;font-size:.95rem;text-shadow:0 1px 6px rgba(0,0,0,.5)}
.embed iframe{z-index:1}

/* ---------- Reading progress & back to top ---------- */
.progress{position:absolute;left:0;right:0;bottom:-1.5px;height:3px;pointer-events:none}
.progress span{display:block;height:100%;width:100%;background:var(--p-tribes);transform:scaleX(0);transform-origin:left}
.to-top{position:fixed;right:1rem;bottom:calc(1rem + env(safe-area-inset-bottom,0px));z-index:8;width:46px;height:46px;border-radius:50%;display:grid;place-items:center;background:var(--ink);color:var(--bg);box-shadow:0 8px 20px -8px rgba(0,0,0,.5);opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .25s,transform .25s var(--ease),visibility .25s}
.to-top.show{opacity:1;visibility:visible;transform:none}
.to-top:hover{transform:translateY(-2px)}

/* ---------- Laptop (961–1280) ---------- */
@media (max-width:1280px) and (min-width:961px){
  nav.tabs a{padding:.5rem .55rem;font-size:.92rem}
  nav.tabs a::after{left:.55rem;right:.55rem}
}

/* ---------- Tablet & mobile menu (≤960) ---------- */
@media (max-width:960px){
  :root{--hdr:58px}
  .top .wrap{flex-wrap:nowrap;padding-top:0}
  .hdr-cta{display:none}
  .nav-toggle{display:grid;place-items:center;margin-left:auto;width:46px;height:46px;border:1.5px solid var(--ink);border-radius:50%;background:transparent;cursor:pointer;flex:none}
  .bars{position:relative;width:18px;height:12px;display:block}
  .bars i{position:absolute;left:0;right:0;height:2px;background:currentColor;border-radius:2px;transition:transform .3s var(--ease),opacity .2s,top .3s var(--ease)}
  .bars i:nth-child(1){top:0}.bars i:nth-child(2){top:5px}.bars i:nth-child(3){top:10px}
  body.nav-open .bars i:nth-child(1){top:5px;transform:rotate(45deg)}
  body.nav-open .bars i:nth-child(2){opacity:0}
  body.nav-open .bars i:nth-child(3){top:5px;transform:rotate(-45deg)}

  nav.tabs{position:fixed;left:0;right:0;top:calc(env(safe-area-inset-top,0px) + var(--hdr));bottom:0;margin:0;z-index:20;background:var(--bg);
    display:flex;flex-direction:column;justify-content:space-between;overflow-y:auto;overscroll-behavior:contain;
    padding:1rem 1.25rem calc(1.5rem + env(safe-area-inset-bottom,0px));
    opacity:0;visibility:hidden;transform:translateY(-10px);transition:opacity .25s,transform .3s var(--ease),visibility .3s}
  header.top.is-scrolled nav.tabs{top:calc(env(safe-area-inset-top,0px) + 56px)}
  body.nav-open nav.tabs{opacity:1;visibility:visible;transform:none}
  body.nav-open{overflow:hidden}
  nav.tabs ul{flex-direction:column;gap:0}
  nav.tabs li{border-bottom:1px solid var(--line);opacity:0;transform:translateY(8px);transition:opacity .3s,transform .35s var(--ease)}
  body.nav-open nav.tabs li{opacity:1;transform:none}
  body.nav-open nav.tabs li:nth-child(2){transition-delay:.03s} body.nav-open nav.tabs li:nth-child(3){transition-delay:.06s}
  body.nav-open nav.tabs li:nth-child(4){transition-delay:.09s} body.nav-open nav.tabs li:nth-child(5){transition-delay:.12s}
  body.nav-open nav.tabs li:nth-child(6){transition-delay:.15s} body.nav-open nav.tabs li:nth-child(7){transition-delay:.18s}
  body.nav-open nav.tabs li:nth-child(n+8){transition-delay:.21s}
  nav.tabs a{display:flex;align-items:center;justify-content:space-between;min-height:56px;padding:.6rem .2rem;font-size:1.5rem;font-weight:900;font-stretch:78%;color:var(--ink);border-radius:0}
  nav.tabs a::before{content:"";order:2;width:10px;height:10px;border-radius:50%;background:var(--pc,transparent)}
  nav.tabs a::after{left:.2rem;right:auto;width:3rem;bottom:.6rem}
  nav.tabs a:hover{background:transparent}
  .nav-extra{display:flex;flex-direction:column;gap:1.2rem;padding-top:2rem}
  .nav-extra .btn{justify-content:center;font-size:1rem;padding:.85rem 1rem}
  .nav-extra .socials a{color:var(--ink)}
}

/* ---------- Tablet (641–960) ---------- */
@media (max-width:960px) and (min-width:641px){
  .hero .wrap{gap:2rem}
  .vgrid{grid-template-columns:repeat(2,1fr)}
}

/* ---------- Mobile (≤640) ---------- */
@media (max-width:640px){
  body{font-size:1rem}
  .wrap{padding:0 1rem}
  .hero .wrap{padding-top:2rem;padding-bottom:2.2rem;gap:1.6rem}
  .hero h1{font-size:clamp(2.6rem,13vw,3.6rem);margin-bottom:.9rem}
  .hero p{font-size:1.02rem;margin-bottom:1.2rem}
  .hero .ctas{display:grid;grid-template-columns:1fr 1fr;gap:.5rem}
  .hero .ctas .btn{justify-content:center;padding:.75rem .6rem;font-size:.92rem;text-align:center}
  .hero .ctas .btn:only-child{grid-column:1/-1}

  /* chủ đề: vuốt ngang */
  .pillars{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;border-bottom:1.5px solid var(--ink)}
  .pillars::-webkit-scrollbar{display:none}
  .pillar,.pillar:nth-child(2),.pillar:nth-child(-n+2){flex:0 0 78%;scroll-snap-align:start;border-bottom:0;border-right:1.5px solid var(--ink);padding:1.3rem 1rem 1.1rem}
  .pillar:last-child{border-right:0}
  .pillar h2{font-size:1.7rem}
  .pillar p{font-size:.92rem}

  .section{padding:2.2rem 0 .5rem}
  .shead{margin-bottom:1rem}
  .page-head{padding:2rem 0 1.1rem;margin-bottom:1.4rem}
  .page-head h1{font-size:clamp(2.4rem,12vw,3.4rem)}

  /* bộ lọc: một hàng, vuốt ngang */
  .filters{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;margin-left:-1rem;margin-right:-1rem;padding:0 1rem .2rem;
    -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 1rem,#000 calc(100% - 1.5rem),transparent);mask-image:linear-gradient(90deg,transparent 0,#000 1rem,#000 calc(100% - 1.5rem),transparent)}
  .filters::-webkit-scrollbar{display:none}
  .filters a,.filters .lbl{flex:none;white-space:nowrap}
  .filters a{padding:.45rem .9rem}

  .vgrid{grid-template-columns:1fr;gap:1.5rem}
  .chgrid{gap:1.2rem}
  .ch-body{padding:1rem}
  .ch .actions{display:grid;grid-template-columns:1fr 1fr}
  .ch .actions .btn{justify-content:center}

  .planband{padding:1.3rem 1.1rem}
  .planband .btn{width:100%;justify-content:center}
  #homeBook{margin-top:2rem}

  article.read{padding:1.8rem 0 3rem}
  article.read h1{font-size:clamp(2rem,9vw,2.6rem)}
  .entry-content{font-size:1.03rem}
  .booktrip{padding:1rem}
  .booktrip .row{flex-wrap:wrap}
  .booktrip .row .btn{width:100%;justify-content:center}
  .watchmore .btn{width:100%;justify-content:center}

  dialog{max-width:100vw;width:100vw;margin:auto 0}
  .minfo .side{display:grid;grid-template-columns:1fr 1fr;width:100%}
  .minfo .side #playerSub{grid-column:1/-1;justify-content:center}
  .minfo .btn{justify-content:center}

  .about-hero .wrap{padding-top:2.2rem;padding-bottom:2.2rem}
  .stats{gap:1rem 1.6rem}
  .stats dt{font-size:2rem}
  .to-top{width:42px;height:42px}
}

/* Thiết bị cảm ứng: bỏ hiệu ứng nhấc lên khi hover để tránh "dính" hover */
@media (hover:none){
  .btn:hover,.ch:hover,.socials a:hover,.to-top:hover{transform:none;box-shadow:none}
  .vcard:hover .thumb img,.post:hover .cover img{transform:none}
}

/* Menu di động: khối nút & icon mạng xã hội */
.nav-extra .socials{flex-direction:row;flex-wrap:wrap;gap:.6rem}
.nav-extra .socials li{border:0;opacity:1;transform:none}
.nav-extra .socials a{display:grid;place-items:center;justify-content:center;align-content:center;width:46px;height:46px;min-height:0;padding:0;border:1.5px solid var(--ink);border-radius:50%;font-size:1rem}
.nav-extra a::before,.nav-extra a::after{display:none}
.nav-extra .btn{display:flex;min-height:0;font-size:1rem;font-weight:700;font-stretch:100%;color:#fff;border-radius:4px}
.hero .yt-cap{display:none}