/* ============================================================
   KCT v2.1 UPGRADE — evolution, not redesign
   ============================================================ */

/* ---------- 1. FIX: mobile nav must never show on desktop ---------- */
.mobile-nav{display:none}
@media(max-width:960px){
  .mobile-nav{display:block;position:fixed;inset:0;z-index:950;background:var(--paper);
    padding:90px 30px 40px;transform:translateX(100%);transition:transform .4s ease;overflow:auto}
  .mobile-nav.open{transform:none}
  .mobile-nav ul{list-style:none;display:grid;gap:6px}
  .mobile-nav a,.mobile-nav .mnav-head{display:block;font-family:var(--serif-d);font-size:1.4rem;
    padding:12px 0;border-bottom:1px solid var(--line-soft);color:var(--ink)}
  .mobile-nav .mnav-sub{padding-left:18px}
  .mobile-nav .mnav-sub a{font-size:1.05rem;font-family:var(--sans);color:var(--ink-soft)}
  .mobile-close{position:absolute;top:22px;right:24px}
}

/* ---------- 3. Header v2 ---------- */
.site-header{transition:background .3s,box-shadow .3s,border-color .3s}
.site-header .bar{transition:height .3s}
body.home .site-header{position:fixed;top:0;left:0;right:0;background:transparent;border-bottom-color:transparent}
body.home .site-header .brand .t,body.home .main-nav a,body.home .main-nav button.top{color:#fdf8ec;text-shadow:0 1px 12px rgba(20,10,5,.55)}
body.home .site-header .brand{color:#e8c86a}
.site-header.scrolled .brand{color:var(--ink)}
body.home .header-actions .icon-btn{background:rgba(253,248,236,.12);border-color:rgba(253,248,236,.35);color:#fdf8ec}
.site-header.scrolled{background:rgba(250,246,238,.96);border-bottom:1px solid var(--line);box-shadow:0 8px 30px rgba(80,60,30,.08)}
.site-header.scrolled .bar{height:60px}
.site-header.scrolled .brand .t,.site-header.scrolled .main-nav a,.site-header.scrolled .main-nav button.top{color:var(--ink);text-shadow:none}
.site-header.scrolled .header-actions .icon-btn{background:var(--card);border-color:var(--line);color:var(--ink)}
/* desktop dropdowns */
.main-nav .top{background:none;border:0;cursor:pointer;font-family:var(--sans);font-size:.82rem;
  font-weight:500;letter-spacing:.08em;color:var(--ink);padding:8px 2px;border-bottom:2px solid transparent}
.main-nav .has-drop,.main-nav .has-mega{position:relative}
.main-nav .has-mega{position:static}
.main-nav .drop{position:absolute;top:100%;left:0;min-width:250px;background:var(--card);
  border:1px solid var(--line);border-radius:12px;padding:10px;box-shadow:var(--shadow);
  opacity:0;visibility:hidden;transform:translateY(8px);transition:.25s;list-style:none;display:grid;z-index:960}
.main-nav .has-drop:hover .drop,.main-nav .has-drop:focus-within .drop,
.main-nav .has-drop.open .drop{opacity:1;visibility:visible;transform:none}
.main-nav .drop a{display:block;padding:11px 14px;border-radius:8px;font-size:.88rem}
.main-nav .drop a:hover{background:var(--paper-2)}
.main-nav .drop a small{display:block;color:var(--ink-faint);font-size:.74rem;margin-top:2px}
.main-nav .mega{position:absolute;top:100%;left:0;right:0;background:var(--card);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);box-shadow:0 30px 60px rgba(80,60,30,.12);
  opacity:0;visibility:hidden;transform:translateY(10px);transition:.28s;z-index:960}
.main-nav .has-mega:hover .mega,.main-nav .has-mega:focus-within .mega,
.main-nav .has-mega.open .mega{opacity:1;visibility:visible;transform:none}
.mega-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;padding:30px 0 36px}
.mega-grid a{padding:14px 16px;border-radius:10px;display:block}
.mega-grid a:hover{background:var(--paper-2)}
.mega-grid .mt{font-family:var(--serif-d);font-size:1.02rem;color:var(--ink);display:block}
.mega-grid small{font-family:var(--sans);font-size:.74rem;color:var(--ink-faint)}
@media(max-width:1100px){.mega-grid{grid-template-columns:repeat(3,1fr)}}

/* ---------- 4. Hero v2 ---------- */
body.home .hero{margin-top:0}
.hero-inner{padding:clamp(120px,16vw,190px) 0 clamp(80px,10vw,130px)}
.hero h1{font-size:clamp(2.4rem,6vw,4.4rem);letter-spacing:.03em}
.hero .bg::after{background:linear-gradient(180deg,rgba(24,14,8,.42) 0%,rgba(24,14,8,.18) 40%,var(--paper) 96%)}
.hero .kicker{color:#e8c86a}
.hero .sub{color:#f3ead6;text-shadow:0 1px 10px rgba(20,10,5,.5)}
.hero-search{max-width:620px;padding:4px}
.hero-search input{font-size:1.05rem}
.hero-examples{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px;font-family:var(--sans);font-size:.82rem;color:#e9dcc3;align-items:center}
.hero-examples button{border:1px solid rgba(253,248,236,.4);background:rgba(20,12,8,.25);border-radius:999px;
  padding:8px 18px;color:#fdf8ec;cursor:pointer;transition:.25s;font-size:.83rem;backdrop-filter:blur(4px)}
.hero-examples button:hover{border-color:#e8c86a;color:#e8c86a}
.kbd-hint{font-family:var(--sans);font-size:.74rem;color:#cbb98f;margin-top:14px;letter-spacing:.06em}
.kbd-hint kbd{border:1px solid rgba(253,248,236,.4);border-radius:6px;padding:2px 8px;font-family:var(--sans);font-size:.72rem}

/* ---------- 5. Dharma Search palette ---------- */
.search-overlay{padding:10vh clamp(18px,6vw,60px) 60px}
.search-box{max-width:680px;margin:0 auto;background:var(--card);border:1px solid var(--line);
  border-radius:18px;padding:26px clamp(20px,4vw,34px);box-shadow:0 40px 100px rgba(60,40,20,.22)}
.search-box .row{border-bottom:2px solid var(--maroon);padding-bottom:8px}
.search-box input{font-size:clamp(1.2rem,3vw,1.7rem)}
#search-results{max-height:56vh;overflow:auto}
.sr-group h4{display:flex;align-items:center;gap:10px}
.sr-group h4::after{content:"";flex:1;height:1px;background:var(--line-soft)}

/* ---------- 6. Đọc gì hôm nay — editorial polish ---------- */
.card .body h3 a{transition:color .25s}
.card:hover .body h3 a{color:var(--maroon)}
.card .go-arrow{font-family:var(--sans);color:var(--gold);opacity:0;transform:translateX(-6px);transition:.3s}
.card:hover .go-arrow{opacity:1;transform:none}

/* ---------- 7. Topic tiles — portal hover ---------- */
.cat-tile .go{position:absolute;right:18px;bottom:16px;z-index:2;font-family:var(--sans);font-size:.78rem;
  letter-spacing:.14em;color:#e8c86a;opacity:0;transform:translateX(-8px);transition:.35s}
.cat-tile:hover .go{opacity:1;transform:none}
.cat-tile::after{transition:opacity .4s}
.cat-tile:hover::after{background:linear-gradient(180deg,rgba(20,12,8,.12) 20%,rgba(20,12,8,.88))}

/* ---------- 8. Journey preview (home) ---------- */
.journey-home{max-width:680px;margin:0 auto}
.jstep-home{display:grid;grid-template-columns:70px 1fr;gap:18px;padding:20px 0;border-bottom:1px solid var(--line-soft);align-items:baseline}
.jstep-home:last-of-type{border-bottom:0}
.jstep-home .n{font-family:var(--serif-d);font-size:1.6rem;color:var(--gold)}
.jstep-home h3{font-size:1.15rem;font-weight:600}
.jstep-home h3 a{color:var(--ink)}
.jstep-home h3 a:hover{color:var(--maroon)}
.jstep-home .conn{text-align:center;color:var(--gold);font-size:.9rem;padding:2px 0 2px 88px;text-align:left}

/* ---------- latest posts (editorial list) ---------- */
.latest-list{max-width:780px;margin:0 auto}
.latest-row{display:grid;grid-template-columns:110px 1fr auto;gap:22px;align-items:baseline;
  padding:22px 0;border-bottom:1px solid var(--line-soft)}
.latest-row:last-child{border-bottom:0}
.latest-row .d{font-family:var(--sans);font-size:.78rem;color:var(--ink-faint);letter-spacing:.08em}
.latest-row h3{font-size:1.25rem}
.latest-row h3 a{color:var(--ink)}
.latest-row h3 a:hover{color:var(--maroon)}
.latest-row .m{font-family:var(--sans);font-size:.76rem;color:var(--ink-faint);white-space:nowrap}
@media(max-width:640px){.latest-row{grid-template-columns:1fr;gap:6px}}

/* ---------- art teaser + gallery ---------- */
.art-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:800px){.art-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.art-grid{grid-template-columns:1fr}}
.art-item{cursor:zoom-in}
.art-item .thumb{aspect-ratio:4/3}
.art-item figcaption{padding:14px 4px 0}
.art-item figcaption b{font-family:var(--serif-d);font-weight:600;font-size:1.02rem;display:block;color:var(--ink)}
.art-item figcaption span{font-family:var(--sans);font-size:.8rem;color:var(--ink-faint)}
.lightbox{position:fixed;inset:0;z-index:1200;background:rgba(18,12,8,.96);display:none;
  align-items:center;justify-content:center;flex-direction:column;padding:4vh 4vw}
.lightbox.open{display:flex}
.lightbox img{max-height:76vh;max-width:92vw;object-fit:contain;border-radius:6px}
.lightbox .cap{color:#e9dcc3;max-width:640px;text-align:center;margin-top:18px;font-size:.95rem}
.lightbox .cap b{font-family:var(--serif-d);font-size:1.15rem;display:block;margin-bottom:6px;color:#fff}
.lightbox .lb-close{position:absolute;top:20px;right:26px;background:none;border:0;color:#e9dcc3;
  font-size:2rem;cursor:pointer;line-height:1}
.lightbox .lb-nav{position:absolute;top:50%;transform:translateY(-50%);background:none;border:0;
  color:#e9dcc3;font-size:2.4rem;cursor:pointer;padding:12px}
.lightbox .lb-prev{left:12px}.lightbox .lb-next{right:12px}

/* ---------- timeline teaser ---------- */
.tl-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:8px}
@media(max-width:800px){.tl-strip{grid-template-columns:repeat(2,1fr)}}
.tl-cell{padding:26px 22px;border-left:1px solid var(--line);transition:.3s}
.tl-cell:first-child{border-left:0}
.tl-cell:hover{background:var(--card)}
.tl-cell .era{font-family:var(--sans);font-size:.7rem;font-weight:600;letter-spacing:.26em;color:var(--saffron);text-transform:uppercase}
.tl-cell h3{font-size:1.08rem;margin:8px 0 6px}
.tl-cell p{font-size:.86rem;color:var(--ink-soft)}

/* ---------- 13. knowledge path ---------- */
.kpath{margin:56px 0 8px;border:1px solid var(--line);border-radius:var(--radius);background:var(--card);padding:30px clamp(20px,4vw,40px)}
.kpath h3{font-size:1.3rem;margin-bottom:4px}
.kpath .sub{font-family:var(--sans);font-size:.84rem;color:var(--ink-faint);margin-bottom:20px}
.kpath .node{display:flex;gap:16px;align-items:flex-start}
.kpath .node .dotn{width:14px;height:14px;border-radius:50%;background:var(--maroon);flex:none;margin-top:7px}
.kpath .node.next .dotn{background:var(--card);border:2px solid var(--gold)}
.kpath .node b{font-family:var(--serif-d);font-size:1.05rem;color:var(--ink);display:block}
.kpath .node span{font-family:var(--sans);font-size:.82rem;color:var(--ink-faint)}
.kpath .conn2{width:2px;height:26px;background:var(--line);margin:6px 0 6px 6px}

/* ---------- footer v2 ---------- */
.f-search{display:flex;max-width:340px;margin-top:14px;border:1px solid rgba(232,200,106,.3);border-radius:999px;overflow:hidden}
.f-search input{flex:1;background:transparent;border:0;padding:11px 18px;color:#e9dcc3;font-family:var(--sans);font-size:.88rem}
.f-search input::placeholder{color:#8f7c58}
.f-search input:focus{outline:none}
.f-search button{background:transparent;border:0;color:var(--gold);padding:0 18px;cursor:pointer;font-size:1rem}

/* ---------- misc polish ---------- */
.byline .upd{color:var(--saffron)}
.divider-orn{margin:44px auto}
@media(max-width:960px){
  .main-nav{display:none}
  body.home .site-header{position:sticky;background:rgba(250,246,238,.94);border-bottom:1px solid var(--line)}
  body.home .site-header .brand .t,body.home .main-nav a{color:var(--ink);text-shadow:none}
  body.home .header-actions .icon-btn{background:var(--card);border-color:var(--line);color:var(--ink)}
  body.home .hero-inner{padding-top:clamp(70px,10vw,110px)}
  .mega-grid{grid-template-columns:1fr 1fr}
}