/* ==========================================================================
   Diên Tơ Show — diento.yavender.com
   Bảng màu lấy từ bộ nhận diện: tím hoàng gia + vàng kim + ngọc lam
   ========================================================================== */

:root{
  --ink:#12041c;
  --plum-900:#1b0729;
  --plum-800:#25093a;
  --plum-700:#360f52;
  --plum-600:#4a1670;
  --violet:#7b2fbe;
  --orchid:#b06ef0;
  --teal:#37c6c6;
  --gold:#e0b25a;
  --gold-lt:#f6dd9f;
  --gold-dk:#a97c26;
  --cream:#f6efe4;
  --muted:rgba(246,239,228,.62);
  --line:rgba(224,178,90,.26);

  --w:1220px;
  --r:0px;                    /* góc vuông — khung tranh, không phải thẻ bo tròn */
  --shadow:0 18px 44px -30px rgba(0,0,0,.9);
  --hair:rgba(224,178,90,.34); /* chỉ vàng mảnh dùng làm khung */
  --grad-gold:linear-gradient(100deg,#a97c26 0%,#e0b25a 26%,#f9e9be 50%,#e0b25a 74%,#a97c26 100%);
  --head-h:74px;
}

*,*::before,*::after{box-sizing:border-box}
/* KHÔNG đặt overflow-x trên html: sẽ biến html thành scroll container và
   làm hỏng position:sticky của header. Drawer mobile được ẩn bằng clip-path
   nên không gây tràn ngang. */
html{scroll-behavior:smooth;scroll-padding-top:96px;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--plum-900);
  color:var(--cream);
  font:400 16px/1.75 "Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
h1,h2,h3,h4{font-family:"Playfair Display",Georgia,serif;font-weight:600;line-height:1.18;margin:0}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}

.wrap{width:min(100% - 40px,var(--w));margin-inline:auto}
.skip{position:absolute;left:-9999px;top:0;background:var(--gold);color:#20102b;padding:10px 16px;z-index:200;border-radius:0 0 8px 0}
.skip:focus{left:0}

/* ---------- typographic helpers ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:.6em;
  font-size:.74rem;font-weight:600;letter-spacing:.26em;text-transform:uppercase;
  color:var(--gold);margin:0 0 14px;
}
.eyebrow::before,.eyebrow::after{content:"";width:26px;height:1px;background:linear-gradient(90deg,transparent,var(--gold))}
.eyebrow::after{background:linear-gradient(90deg,var(--gold),transparent)}
.eyebrow--left::before{display:none}

.gold-text{
  background:var(--grad-gold);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.lead{font-size:1.06rem;color:rgba(246,239,228,.82)}
.sec-title{font-size:clamp(1.7rem,3.4vw,2.65rem);letter-spacing:.01em}
.sec-head{text-align:center;max-width:760px;margin:0 auto 46px}
.sec-head .lead{margin-top:16px}

.divider{display:flex;align-items:center;justify-content:center;gap:12px;margin:18px 0 0}
.divider span{width:56px;height:1px;background:linear-gradient(90deg,transparent,var(--gold))}
.divider span+span{background:linear-gradient(90deg,var(--gold),transparent)}
.divider i{width:7px;height:7px;transform:rotate(45deg);background:var(--gold);display:block}

/* ---------- buttons ---------- */
/* Nút kiểu vé nhà hát: chữ nhật, chữ hoa dãn, viền chỉ vàng */
.btn{
  position:relative;
  display:inline-flex;align-items:center;justify-content:center;gap:.6em;
  padding:14px 30px;border-radius:0;border:1px solid var(--hair);
  font-weight:600;font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;
  cursor:pointer;transition:background .3s,color .3s,border-color .3s;
  white-space:nowrap;
}
.btn--gold{
  background:var(--grad-gold);background-size:220% 100%;background-position:0 0;
  color:#28150a;border-color:#c99a3d;
}
.btn--gold:hover{background-position:100% 0}
/* khung đôi mảnh — chi tiết thủ công thay cho đổ bóng */
.btn--gold::after{
  content:"";position:absolute;inset:3px;border:1px solid rgba(42,21,3,.34);pointer-events:none;
}
.btn--ghost{color:var(--cream);background:transparent}
.btn--ghost::after{
  content:"";position:absolute;inset:0;border:1px solid transparent;
  transition:inset .3s,border-color .3s;pointer-events:none;
}
.btn--ghost:hover{border-color:var(--gold);color:var(--gold-lt)}
.btn--ghost:hover::after{inset:3px;border-color:rgba(224,178,90,.4)}
.btn--block{width:100%;white-space:normal;text-align:center;letter-spacing:.12em}
.btn--lg{padding:17px 36px;font-size:.82rem}

/* ---------- topbar ---------- */
.topbar{background:#0d0316;border-bottom:1px solid rgba(224,178,90,.14);font-size:.82rem}
.topbar__in{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:38px}
.topbar__tag{color:var(--muted);letter-spacing:.14em;text-transform:uppercase;font-size:.7rem}
.topbar__right{display:flex;align-items:center;gap:18px}
.topbar__hot{color:var(--gold-lt);font-weight:600;display:inline-flex;align-items:center;gap:.45em}
.topbar__socials{display:flex;gap:12px}
.topbar__socials a{color:var(--muted);transition:color .2s}
.topbar__socials a:hover{color:var(--gold)}
.topbar__socials svg{width:15px;height:15px;display:block}

/* ---------- header ---------- */
.site-head{
  position:sticky;top:0;z-index:80;
  background:linear-gradient(180deg,rgba(27,7,41,.97),rgba(27,7,41,.88));
  border-bottom:1px solid rgba(224,178,90,.16);
  backdrop-filter:blur(10px);
  transition:transform .38s cubic-bezier(.4,0,.2,1),background .3s,border-color .3s;
}
.site-head.is-stuck{background:rgba(19,5,30,.98);border-bottom-color:var(--hair)}
/* cuộn xuống thì ẩn, cuộn lên hiện lại */
.site-head.is-hidden{transform:translateY(-100%)}
.site-head__in{display:flex;align-items:center;gap:22px;min-height:var(--head-h)}

.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand__mark{width:auto;height:44px;filter:drop-shadow(0 0 12px rgba(176,110,240,.5))}
.brand__txt{display:flex;flex-direction:column;line-height:1}
.brand__name{font-family:"Playfair Display",serif;font-size:1.42rem;font-weight:700;letter-spacing:.02em;
  background:var(--grad-gold);-webkit-background-clip:text;background-clip:text;color:transparent}
.brand__sub{font-size:.6rem;letter-spacing:.44em;color:var(--teal);margin-top:3px}

.nav{margin-left:auto;display:flex;align-items:center;gap:18px}
.nav__list{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
.nav__link{
  position:relative;display:inline-flex;align-items:center;gap:.35em;
  padding:10px 13px;border-radius:0;
  font-size:.83rem;font-weight:500;letter-spacing:.08em;text-transform:uppercase;
  color:rgba(246,239,228,.86);transition:color .22s;
}
.nav__link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:4px;height:2px;
  background:var(--grad-gold);transform:scaleX(0);transform-origin:left;transition:transform .28s ease;
}
.nav__link:hover{color:var(--gold-lt)}
.nav__link:hover::after,.nav__link.is-active::after{transform:scaleX(1)}
.nav__link.is-active{color:var(--gold)}
.caret{width:9px;height:6px;opacity:.75;transition:transform .25s}
.has-sub:hover .caret{transform:rotate(180deg)}

.sub{
  position:absolute;top:calc(100% - 2px);left:0;min-width:246px;
  list-style:none;margin:0;padding:8px;
  background:rgba(24,8,37,.985);border:1px solid var(--hair);border-radius:0;
  box-shadow:var(--shadow);
  opacity:0;visibility:hidden;transform:translateY(10px);transition:.25s;
}
.has-sub{position:relative}
.has-sub:hover>.sub,.has-sub:focus-within>.sub{opacity:1;visibility:visible;transform:translateY(0)}
.sub a{position:relative;display:block;padding:11px 14px 11px 26px;border-radius:0;font-size:.9rem;color:rgba(246,239,228,.84);transition:color .2s}
.sub a::before{
  content:"";position:absolute;left:12px;top:50%;width:6px;height:1px;
  background:var(--gold);transform:translateY(-50%) scaleX(0);transform-origin:left;transition:transform .25s;
}
.sub a:hover{color:var(--gold-lt)}
.sub a:hover::before{transform:translateY(-50%) scaleX(1)}
.sub-toggle{display:none}
.nav__cta{padding:11px 22px;font-size:.72rem}

.burger{display:none;width:44px;height:44px;background:none;border:1px solid var(--hair);border-radius:0;
  flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer;margin-left:auto}
.burger span{width:20px;height:2px;background:var(--gold);border-radius:2px;transition:.28s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-scrim{position:fixed;inset:0;background:rgba(8,2,14,.66);z-index:70;backdrop-filter:blur(2px)}

/* ==========================================================================
   HERO SLIDER (3 banner tự chạy)
   ========================================================================== */
.hero{position:relative;overflow:hidden;background:#0d0316}
.hero__track{position:relative;height:clamp(430px,66vh,660px)}
.hero__slide{
  position:absolute;inset:0;opacity:0;visibility:hidden;
  transition:opacity 1.1s ease, visibility 1.1s;
}
.hero__slide.is-on{opacity:1;visibility:visible}
.hero__bg{width:100%;height:100%;object-fit:cover;transform:scale(1.06)}
.hero__slide.is-on .hero__bg{animation:kenburns 9s ease-out forwards}
@keyframes kenburns{from{transform:scale(1.02)}to{transform:scale(1.13)}}
.hero__veil{
  position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(13,3,22,.72) 0%,rgba(13,3,22,.18) 34%,rgba(13,3,22,.55) 72%,rgba(27,7,41,.98) 100%),
    radial-gradient(120% 80% at 50% 110%,rgba(123,47,190,.5),transparent 60%);
}
.hero__caption{
  position:absolute;inset:auto 0 0 0;padding:0 0 clamp(46px,8vh,86px);
  text-align:center;z-index:2;
}
.hero__slide .hero__caption>*{opacity:0;transform:translateY(24px)}
.hero__slide.is-on .hero__caption>*{animation:riseIn .9s cubic-bezier(.2,.7,.3,1) forwards}
.hero__slide.is-on .hero__caption>*:nth-child(2){animation-delay:.16s}
.hero__slide.is-on .hero__caption>*:nth-child(3){animation-delay:.3s}
.hero__slide.is-on .hero__caption>*:nth-child(4){animation-delay:.44s}
@keyframes riseIn{to{opacity:1;transform:none}}
.hero__title{
  font-size:clamp(1.9rem,4.6vw,3.5rem);letter-spacing:.01em;
  text-shadow:0 6px 30px rgba(0,0,0,.7);margin:0 0 14px;
}
.hero__sub{max-width:720px;margin:0 auto 26px;color:rgba(246,239,228,.88);font-size:clamp(.95rem,1.5vw,1.1rem)}
.hero__acts{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

.hero__dots{position:absolute;left:0;right:0;bottom:20px;display:flex;justify-content:center;gap:10px;z-index:4}
.hero__dots button{
  width:36px;height:2px;border:0;border-radius:0;background:rgba(246,239,228,.3);cursor:pointer;padding:0;
  transition:background .3s,width .3s;
}
.hero__dots button[aria-current="true"]{background:var(--grad-gold);width:64px}
.hero__arrow{
  position:absolute;top:50%;transform:translateY(-50%);z-index:4;
  width:44px;height:44px;border-radius:0;border:1px solid rgba(246,239,228,.26);
  background:rgba(18,4,28,.34);cursor:pointer;
  display:grid;place-items:center;transition:background .25s,border-color .25s,color .25s;
}
.hero__arrow:hover{background:rgba(13,3,22,.8);border-color:var(--gold);color:var(--gold-lt)}
.hero__arrow--prev{left:18px}
.hero__arrow--next{right:18px}
.hero__arrow svg{width:16px;height:16px}

/* ---------- page hero (trang con) ---------- */
.phero{position:relative;padding:clamp(64px,10vw,110px) 0 clamp(52px,8vw,86px);overflow:hidden;text-align:center;background:#150522}
.phero__bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.34}
.phero::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(21,5,34,.6),rgba(27,7,41,.95)),radial-gradient(90% 70% at 50% 0%,rgba(123,47,190,.4),transparent 70%)}
.phero>:not(.phero__bg){position:relative;z-index:2}
.phero h1{font-size:clamp(1.9rem,4.4vw,3.1rem)}
.phero .lead{max-width:720px;margin:18px auto 0}
.crumb{font-size:.8rem;color:var(--muted);margin-bottom:18px;letter-spacing:.06em}
.crumb a:hover{color:var(--gold)}

/* ==========================================================================
   SECTIONS
   ========================================================================== */
.sec{padding:clamp(58px,8vw,104px) 0;position:relative}
.sec--alt{background:linear-gradient(180deg,#1b0729,#210a33 55%,#1b0729)}

/* Mô tả ngắn — banner ẩn chìm phía sau text */
.intro{position:relative;overflow:hidden;text-align:center;background:#180624}
.intro__bg{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  opacity:.2;filter:saturate(1.1);
}
.intro::after{content:"";position:absolute;inset:0;
  background:radial-gradient(75% 90% at 50% 50%,rgba(24,6,36,.35),rgba(24,6,36,.94) 78%)}
.intro__in{position:relative;z-index:2;max-width:900px;margin:0 auto;text-align:center}
.intro__quote{
  font-family:"Playfair Display",serif;font-style:italic;font-size:clamp(1.15rem,2.2vw,1.5rem);
  color:var(--gold-lt);margin-top:30px;
}
.intro__lines{display:grid;gap:14px;margin-top:26px;font-size:clamp(.98rem,1.5vw,1.12rem);color:rgba(246,239,228,.88)}
.intro__lines b{color:#fff;font-weight:600}

/* Đặt vé block */
.ticket{position:relative;overflow:hidden}
.ticket__bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.68}
.ticket::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(27,7,41,.9),rgba(27,7,41,.6) 45%,rgba(27,7,41,.92)),
             radial-gradient(80% 60% at 50% 50%,transparent,rgba(19,5,30,.7))}
.ticket__in{position:relative;z-index:2}
.ticket__grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,56px)}
/* Khung tranh: viền chỉ vàng mảnh + ke góc, không bo tròn, không đổ bóng lớn */
.panel{
  background:linear-gradient(160deg,rgba(74,22,112,.42),rgba(19,5,30,.62));
  border:1px solid var(--hair);border-radius:0;padding:clamp(26px,3vw,40px);
  position:relative;
}
.panel::before,.panel::after{
  content:"";position:absolute;width:14px;height:14px;border:1px solid var(--gold);pointer-events:none;
}
.panel::before{top:-1px;left:-1px;border-right:0;border-bottom:0}
.panel::after{bottom:-1px;right:-1px;border-left:0;border-top:0}
.panel__h{font-size:clamp(1.3rem,2.4vw,1.8rem);color:var(--gold-lt);margin-bottom:6px}
.panel__rule{height:1px;background:linear-gradient(90deg,var(--gold),transparent);margin:16px 0 22px}
.tlist{list-style:none;margin:0;padding:0;display:grid;gap:16px}
.tlist li{display:flex;gap:14px;align-items:flex-start;font-size:1rem}
.tlist .ic{flex:0 0 auto;width:28px;height:28px;border-radius:0;display:grid;place-items:center;
  background:transparent;border:1px solid var(--hair);margin-top:2px}
.tlist .ic svg{width:13px;height:13px;color:var(--gold)}
.tlist .k{display:block;font-size:.76rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
.tlist .v{display:block;font-weight:500;color:#fff}
.tbd{color:var(--muted);font-style:italic;font-weight:400}

/* Chương cards */
.chapters{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.chap{
  position:relative;border-radius:0;overflow:hidden;
  background:linear-gradient(170deg,rgba(74,22,112,.34),rgba(19,5,30,.78));
  border:1px solid var(--hair);
  display:flex;flex-direction:column;
  transition:border-color .35s,background .35s;
}
.chap:hover{border-color:var(--gold)}
/* thanh chỉ vàng chạy ngang khi rê chuột — thay cho hiệu ứng "nhấc thẻ lên" */
.chap::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;z-index:3;
  background:var(--grad-gold);transform:scaleX(0);transform-origin:left;transition:transform .45s ease;
}
.chap:hover::after{transform:scaleX(1)}
.chap__media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0f0318}
.chap__media img{width:100%;height:100%;object-fit:cover;transition:transform .7s ease}
.chap:hover .chap__media img{transform:scale(1.07)}
.chap__media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(19,5,30,.85))}
.chap__no{
  position:absolute;left:0;top:16px;z-index:2;
  font-family:"Playfair Display",serif;font-size:.72rem;letter-spacing:.24em;text-transform:uppercase;
  padding:6px 14px;border-radius:0;background:rgba(13,3,22,.82);
  border:1px solid var(--hair);border-left:0;color:var(--gold)
}
.chap__body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.chap__t{font-size:1.24rem;color:#fff}
.chap__st{font-size:.76rem;letter-spacing:.2em;text-transform:uppercase;color:var(--teal)}
.chap__d{font-size:.94rem;color:rgba(246,239,228,.74);flex:1}
.chap__more{font-size:.85rem;font-weight:600;color:var(--gold);display:inline-flex;align-items:center;gap:.4em;letter-spacing:.04em}
.chap__more span{transition:transform .25s}
.chap:hover .chap__more span{transform:translateX(5px)}

/* Trailer + poster */
.media-grid{display:grid;grid-template-columns:1.72fr 1fr;gap:28px;align-items:stretch}
.frame{
  position:relative;border-radius:0;overflow:hidden;border:1px solid var(--hair);
  background:linear-gradient(160deg,rgba(74,22,112,.32),rgba(15,3,24,.9));
}
.frame__label{
  position:absolute;left:0;top:14px;z-index:3;font-size:.66rem;letter-spacing:.24em;text-transform:uppercase;
  color:var(--gold);background:rgba(13,3,22,.86);border:1px solid var(--hair);border-left:0;
  padding:6px 14px;border-radius:0;
}
.video{position:relative;aspect-ratio:16/9;width:100%;background:#0d0316}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.video__ph{position:absolute;inset:0;display:grid;place-items:center;text-align:center;padding:24px}
.video__ph img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.38}
.video__ph .in{position:relative;z-index:2}
.play{
  width:74px;height:74px;border-radius:50%;margin:0 auto 16px;display:grid;place-items:center;
  background:var(--grad-gold);box-shadow:0 0 0 0 rgba(224,178,90,.5);animation:pulse 2.6s infinite;
}
.play svg{width:24px;height:24px;color:#2a1503;margin-left:4px}
@keyframes pulse{70%{box-shadow:0 0 0 26px rgba(224,178,90,0)}100%{box-shadow:0 0 0 0 rgba(224,178,90,0)}}
.poster{display:flex;flex-direction:column}
.poster__img{flex:1;min-height:280px;position:relative;background:#0f0318}
.poster__img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.poster__ph{position:absolute;inset:0;display:grid;place-content:center;justify-items:center;gap:10px;text-align:center;padding:26px;
  background:repeating-linear-gradient(135deg,rgba(123,47,190,.16) 0 12px,transparent 12px 24px)}
.poster__ph svg{width:38px;height:38px;color:var(--gold);opacity:.75}
.poster__ph p{font-size:.92rem;max-width:260px}
.poster__ph p b{font-family:"Playfair Display",serif;color:var(--gold-lt);font-weight:600}
.video__ph .in p{font-size:.94rem;max-width:320px;margin-inline:auto}
.video__ph code{font-size:.82em;background:rgba(224,178,90,.14);padding:2px 6px;border-radius:5px}
.poster__cap{padding:18px 22px;border-top:1px solid var(--line);font-size:.9rem;color:rgba(246,239,228,.8)}
.poster__cap b{display:block;color:var(--gold-lt);font-size:1rem;margin-bottom:3px;font-family:"Playfair Display",serif}

/* Bảng giá vé */
/* Hạng vé: dựng như cuống vé — viền vuông, có răng cưa ở mép trên */
.tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.tier{
  position:relative;border:1px solid var(--hair);border-radius:0;padding:38px 26px 32px;text-align:center;
  background:linear-gradient(170deg,rgba(53,17,82,.5),rgba(17,4,27,.72));
  display:flex;flex-direction:column;gap:8px;transition:border-color .3s,background .3s;
}
.tier::before{
  content:"";position:absolute;left:0;right:0;top:0;height:6px;
  background:radial-gradient(circle at 6px 0,transparent 5px,var(--hair) 5px 5.6px,transparent 6px) repeat-x;
  background-size:12px 6px;opacity:.9;
}
.tier:hover{border-color:var(--gold)}
.tier--hot{border-color:var(--gold);background:linear-gradient(170deg,rgba(74,22,112,.62),rgba(17,4,27,.78))}
.tier--hot::after{
  content:"Được chọn nhiều nhất";position:absolute;top:0;left:50%;transform:translateX(-50%);
  background:var(--grad-gold);color:#2a1503;font-size:.62rem;font-weight:700;letter-spacing:.16em;
  text-transform:uppercase;padding:5px 18px;border-radius:0;white-space:nowrap;
}
.tier__n{font-size:1.16rem;color:#fff}
.tier__p{font-family:"Playfair Display",serif;font-size:2rem;margin:8px 0 2px}
.tier__note{font-size:.9rem;color:rgba(246,239,228,.7);flex:1}

/* Cards chung */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.card{
  position:relative;border:1px solid var(--hair);border-radius:0;padding:32px 28px;
  background:linear-gradient(170deg,rgba(74,22,112,.24),rgba(17,4,27,.6));
  transition:border-color .3s,background .3s;
}
.card::before{
  content:"";position:absolute;left:-1px;top:-1px;width:0;height:1px;background:var(--gold);transition:width .45s ease;
}
.card:hover{border-color:var(--gold)}
.card:hover::before{width:56px}
/* biểu tượng đặt trên vạch chỉ vàng, không dùng "chip" bo góc */
.card__ic{display:inline-flex;padding:0 26px 14px 0;margin-bottom:18px;
  background:transparent;border-bottom:1px solid var(--hair)}
.card__ic svg{width:24px;height:24px;color:var(--gold)}
.card h3{font-size:1.12rem;margin-bottom:9px;color:#fff}
.card p{font-size:.94rem;color:rgba(246,239,228,.74)}

/* Gallery */
.gal{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.gal figure{margin:0;border-radius:0;overflow:hidden;border:1px solid var(--hair);position:relative;background:#0f0318}
.gal img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .6s}
.gal figure:hover img{transform:scale(1.06)}
.gal figcaption{position:absolute;left:0;right:0;bottom:0;padding:26px 16px 12px;font-size:.85rem;
  background:linear-gradient(180deg,transparent,rgba(13,3,22,.92));color:rgba(246,239,228,.9)}

/* Split section (text + ảnh) */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(26px,4vw,60px);align-items:center}
.split--rev .split__media{order:2}
.split__media{position:relative;border-radius:0;overflow:hidden;border:1px solid var(--hair)}
.split__media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.split ul{margin:18px 0 0;padding:0;list-style:none;display:grid;gap:12px}
.split ul li{display:flex;gap:12px;font-size:.97rem;color:rgba(246,239,228,.82)}
.split ul li::before{content:"";flex:0 0 auto;width:7px;height:7px;margin-top:10px;transform:rotate(45deg);background:var(--gold)}

/* Timeline */
.tl{list-style:none;margin:0;padding:0;position:relative}
.tl::before{content:"";position:absolute;left:13px;top:8px;bottom:8px;width:1px;background:linear-gradient(180deg,var(--gold),rgba(224,178,90,.05))}
.tl li{position:relative;padding:0 0 26px 46px}
.tl li::before{content:"";position:absolute;left:7px;top:7px;width:13px;height:13px;border-radius:50%;
  background:var(--plum-900);border:2px solid var(--gold)}
.tl h4{font-size:1.05rem;color:var(--gold-lt);margin-bottom:4px}
.tl p{font-size:.94rem;color:rgba(246,239,228,.74)}

/* FAQ */
.faq{display:grid;gap:12px;max-width:860px;margin-inline:auto}
.faq details{border:1px solid var(--hair);border-radius:0;background:rgba(74,22,112,.16);overflow:hidden}
.faq summary{padding:18px 22px;cursor:pointer;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--gold);font-size:1.35rem;line-height:1;transition:transform .3s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .faq__b{padding:0 22px 20px;color:rgba(246,239,228,.76);font-size:.95rem}

/* Forms */
.form{display:grid;gap:16px}
.field{display:grid;gap:7px}
.field label{font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.field .req{color:var(--gold)}
.field input,.field select,.field textarea{
  width:100%;padding:13px 16px;border-radius:0;
  background:rgba(10,2,17,.6);border:1px solid rgba(224,178,90,.24);color:var(--cream);
  font:inherit;font-size:.96rem;transition:border-color .2s,box-shadow .2s;
}
.field textarea{min-height:110px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(224,178,90,.16)
}
.field input::placeholder,.field textarea::placeholder{color:rgba(246,239,228,.35)}
.field select option{background:#1b0729;color:var(--cream)}
.row-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form__note{font-size:.84rem;color:var(--muted)}
.form__msg{display:none;padding:14px 18px;border-radius:0;font-size:.94rem}
.form__msg.ok{display:block;background:rgba(55,198,198,.12);border:1px solid rgba(55,198,198,.42);color:#a8f0f0}
.form__msg.err{display:block;background:rgba(255,90,90,.1);border:1px solid rgba(255,120,120,.4);color:#ffbfbf}
.field.invalid input,.field.invalid select,.field.invalid textarea{border-color:#ff8080}

/* CTA band */
/* Dải kêu gọi: nền tím phẳng, kẻ chỉ vàng trên dưới như trang chương trình */
.cta-band{position:relative;overflow:hidden;text-align:center;padding:clamp(56px,7vw,92px) 0;
  background:#2c0b44;
  border-top:1px solid var(--hair);border-bottom:1px solid var(--hair)}
.cta-band::before{content:"";position:absolute;inset:0;opacity:.5;
  background:repeating-linear-gradient(90deg,rgba(224,178,90,.07) 0 1px,transparent 1px 44px)}
.cta-band>*{position:relative;z-index:2}
.cta-band h2{font-size:clamp(1.6rem,3.2vw,2.4rem)}
.cta-band p{max-width:640px;margin:14px auto 26px;color:rgba(246,239,228,.86)}
.cta-band .hero__acts{margin-top:6px}

/* ---------- footer ---------- */
.site-foot{background:#0d0316;border-top:1px solid rgba(224,178,90,.18);padding:clamp(44px,6vw,68px) 0 0;margin-top:0}
.foot__grid{display:grid;grid-template-columns:1.35fr 1.25fr 1fr 1fr;gap:36px}
.foot__brand img{width:230px;height:auto;margin-bottom:14px}
.foot__slogan{font-family:"Playfair Display",serif;font-style:italic;color:var(--gold-lt);font-size:1rem;max-width:300px}
.foot__h{font-size:1.02rem;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.foot__list{list-style:none;margin:0;padding:0;display:grid;gap:13px}
.foot__k{display:block;font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.foot__v{display:block;font-size:.95rem;color:rgba(246,239,228,.9)}
.foot__v a:hover{color:var(--gold)}
.foot__links{list-style:none;margin:0;padding:0;display:grid;gap:10px;font-size:.94rem}
.foot__links a{color:rgba(246,239,228,.78);transition:.2s}
.foot__links a:hover{color:var(--gold);padding-left:5px}
.foot__social{display:flex;gap:10px;flex-wrap:wrap}
.foot__social a{
  width:42px;height:42px;border-radius:0;display:grid;place-items:center;
  border:1px solid var(--hair);color:rgba(246,239,228,.82);transition:background .25s,color .25s,border-color .25s;
}
.foot__social a:hover{background:var(--grad-gold);color:#2a1503;border-color:#c99a3d}
.foot__social svg{width:18px;height:18px}
.foot__note{margin-top:16px;font-size:.86rem;color:var(--muted)}
.foot__bottom{
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  margin-top:44px;padding:20px 0;border-top:1px solid rgba(224,178,90,.14);
  font-size:.83rem;color:var(--muted);
}

/* ---------- floating CTA ---------- */
.float-cta{position:fixed;right:18px;bottom:18px;z-index:60;display:grid;gap:10px}
.float-cta a{
  width:50px;height:50px;border-radius:0;display:grid;place-items:center;
  background:var(--grad-gold);color:#2a1503;border:1px solid #c99a3d;
  transition:filter .25s;
}
.float-cta a:hover{filter:brightness(1.1)}
.float-cta a.is-zalo{background:linear-gradient(135deg,#0068ff,#3d9bff);color:#fff;border-color:#0068ff}
.float-cta svg{width:22px;height:22px}
.float-cta a::after{
  content:attr(data-tip);position:absolute;right:62px;white-space:nowrap;
  background:rgba(13,3,22,.96);border:1px solid var(--hair);color:var(--cream);
  padding:6px 12px;border-radius:0;font-size:.78rem;opacity:0;pointer-events:none;transition:.22s;
}
.float-cta a{position:relative}
.float-cta a:hover::after{opacity:1;right:60px}

/* ---------- reveal on scroll ---------- */
.rv{opacity:0;transform:translateY(26px);transition:opacity .8s cubic-bezier(.2,.7,.3,1),transform .8s cubic-bezier(.2,.7,.3,1)}
.rv.in{opacity:1;transform:none}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width:1080px){
  .nav__link{padding:10px 9px;font-size:.78rem;letter-spacing:.05em}
  .nav__cta{padding:10px 16px}
  .foot__grid{grid-template-columns:1fr 1fr;gap:32px}
}

@media (max-width:940px){
  /* backdrop-filter tạo containing block cho position:fixed -> ngăn drawer bám viewport */
  .site-head{backdrop-filter:none;background:rgba(19,5,30,.98)}
  .burger{display:flex}
  .nav{
    position:fixed;top:0;right:0;bottom:0;width:min(340px,86vw);z-index:75;
    flex-direction:column;align-items:stretch;gap:0;
    background:linear-gradient(180deg,#1b0729,#12041c);
    border-left:1px solid var(--line);
    padding:86px 20px 32px;overflow-y:auto;
    /* Ẩn bằng clip-path thay vì đẩy ra ngoài màn hình -> không tạo tràn ngang,
       nhờ đó không cần overflow-x trên html (vốn phá position:sticky). */
    clip-path:inset(0 0 0 100%);visibility:hidden;
    transition:clip-path .38s cubic-bezier(.4,0,.2,1),visibility .38s;
    margin-left:0;
  }
  .nav.is-open{clip-path:inset(0);visibility:visible}
  .nav__list{flex-direction:column;align-items:stretch;gap:2px;width:100%}
  .nav__link{padding:14px 12px;font-size:.86rem;letter-spacing:.08em;border-radius:10px}
  .nav__link::after{display:none}
  .nav__link.is-active{background:rgba(123,47,190,.28)}
  .has-sub{display:grid;grid-template-columns:1fr auto}
  .caret{display:none}
  .sub-toggle{
    display:block;width:44px;height:46px;background:none;border:0;cursor:pointer;position:relative;
  }
  .sub-toggle::before,.sub-toggle::after{
    content:"";position:absolute;left:50%;top:50%;background:var(--gold);transition:.28s;
    transform:translate(-50%,-50%);
  }
  .sub-toggle::before{width:12px;height:2px}
  .sub-toggle::after{width:2px;height:12px}
  .sub-toggle[aria-expanded="true"]::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
  .sub{
    position:static;grid-column:1/-1;opacity:1;visibility:visible;transform:none;
    background:rgba(10,2,17,.5);border:0;border-left:1px solid var(--line);border-radius:0;
    box-shadow:none;margin:0 0 6px 14px;padding:0 0 0 6px;
    display:none;
  }
  .sub.is-open{display:block}
  .nav__cta{margin-top:18px;width:100%;padding:14px}
  .ticket__grid,.split,.media-grid{grid-template-columns:1fr}
  .split--rev .split__media{order:0}
  .chapters{grid-template-columns:1fr;gap:20px}
  .tiers{grid-template-columns:1fr}
  .hero__arrow{display:none}
}

@media (max-width:640px){
  .topbar__tag{display:none}
  .topbar__in{justify-content:center}
  .brand__mark{height:38px}
  .brand__name{font-size:1.2rem}
  .row-2{grid-template-columns:1fr}
  .foot__grid{grid-template-columns:1fr}
  .foot__bottom{justify-content:center;text-align:center}
  .hero__track{height:clamp(400px,74vh,560px)}
  .float-cta a{width:46px;height:46px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
  html{scroll-behavior:auto}
  .rv{opacity:1;transform:none}
}