/* =========================================================
   REEL - Option 2 (bản thử, chỉ xem trên máy)
   Concept tráng ảnh wet plate collodion: đen nhựa · bạc · kem ngà · chút nâu hổ phách.
   Trang chủ A theo east64films.com, B theo milledollars.fr. Works dạng lưới theo east64films.com/works.
   Font có bộ chữ tiếng Việt: Noto Serif Display, Inter Tight.
   ========================================================= */
:root, [data-giao-dien="toi"] {
  --den: #121110;          /* đen nhựa */
  --den-2: #1b1a18;
  --bac: #bfbcb4;          /* bạc */
  --kem: #ece4d3;          /* kem ngà */
  --ho-phach: #a87b4a;     /* nâu hổ phách */
  --mo: rgba(236, 228, 211, .42);
  --vien: rgba(236, 228, 211, .18);
}
/* Giao diện sáng: kem ngà, bạc - biến --den là màu nền, --kem là màu chữ */
[data-giao-dien="sang"] {
  --den: #ece6da;
  --den-2: #e1d9ca;
  --bac: #5d5850;
  --kem: #1a1816;
  --mo: rgba(26, 24, 22, .52);
  --vien: rgba(26, 24, 22, .2);
}
:root {
  --ct: 2px;             /* cỡ chữ cộng thêm cho Works, About, Contact (mục 20F, đã hạ theo luật tối giản mục 23: chữ 12–15px) */
  --f-chu: "Inter Tight", system-ui, sans-serif;
  --f-a: "Noto Serif Display", Georgia, serif;
  --f-b: "Fraunces", Georgia, serif;
  --em: cubic-bezier(.2, .7, .1, 1);
  --hat: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .55 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body { background-attachment: fixed; transition: background-color .5s, color .5s; font-family: var(--f-chu); font-size: calc(13px + var(--ct)); line-height: 1.45; color: var(--kem); background: var(--den); overflow: hidden; -webkit-font-smoothing: antialiased; overscroll-behavior: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
a { color: inherit; }
[hidden] { display: none !important; }
:focus-visible { outline: 1px solid var(--kem); outline-offset: 3px; }
.cham { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: currentColor; margin-right: .6em; vertical-align: 1px; }
.nhan { font-size: calc(11px + var(--ct)); font-weight: 600; letter-spacing: .14em; text-transform: uppercase; }

/* ---------- nút ---------- */
.nut-vien { height: 40px; padding: 0 14px; border: 1px solid var(--vien); border-radius: 999px; font-size: calc(11px + var(--ct)); font-weight: 500; letter-spacing: .08em; text-transform: uppercase; transition: background .3s, color .3s, border-color .3s; white-space: nowrap; }
.nut-vien:hover { border-color: var(--kem); }
.nut-vien.dang { background: var(--kem); color: var(--den); border-color: var(--kem); }
.nut-trang { height: 40px; padding: 0 14px; border-radius: 3px; background: var(--kem); color: var(--den); font-size: calc(11px + var(--ct)); font-weight: 600; letter-spacing: .08em; text-transform: uppercase; transition: opacity .3s; }
.nut-trang:hover { opacity: .85; }
.nut-trang:disabled { opacity: .35; cursor: not-allowed; }
.nut-nho { height: 40px; padding: 0 14px; border-radius: 3px; border: 1px solid var(--vien); font-size: calc(11px + var(--ct)); font-weight: 500; letter-spacing: .04em; background: color-mix(in srgb, var(--den) 55%, transparent); }
.nut-nho:hover { border-color: var(--kem); }

/* =========================================================
   WORKS - lưới phim (east64 works)
   ========================================================= */
.works { position: fixed; inset: 0; z-index: 20; overflow-y: auto; background: var(--nen); opacity: 0; pointer-events: none; transition: opacity .5s; overscroll-behavior: contain; }
body.v-work .works { opacity: 1; pointer-events: auto; }
.works__trong { width: min(1340px, calc(100vw - 48px)); margin: 0 auto; padding: 120px 0 80px; }
.works__thanh { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 26px; }
.loc { display: flex; flex-wrap: wrap; gap: 4px 20px; font-size: calc(10.5px + var(--ct)); font-weight: 500; letter-spacing: .08em; text-transform: uppercase; }
.loc button { padding: 6px 0; opacity: .55; border-top: 1px solid transparent; transition: opacity .3s, border-color .3s; }
.loc button:hover { opacity: 1; }
.loc button.dang { opacity: 1; border-top-color: var(--kem); }
.luoi { display: grid; grid-template-columns: repeat(4, 1fr); gap: 34px 14px; }
.the { text-align: left; cursor: pointer; }
.the__anh { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: var(--den-2); }
.the__anh img, .the__anh video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.the__anh video { opacity: 0; transition: opacity .4s; }
.the__anh video.chay { opacity: 1; }
.the__anh img { transition: transform .8s var(--em), filter .6s; filter: grayscale(.15); }
.the:hover .the__anh img { transform: scale(1.03); filter: none; }
.the__ten { margin-top: 10px; font-size: calc(13px + var(--ct)); font-weight: 600; line-height: 1.3; }
.the__phu { margin-top: 3px; font-size: calc(11px + var(--ct)); color: var(--mo); }
.the__so { position: absolute; top: 8px; right: 8px; font-size: calc(10px + var(--ct)); padding: 2px 8px; border-radius: 999px; background: rgba(18, 17, 16, .6); }

/* =========================================================
   ABOUT / CONTACT - tối giản, tấm kính wet plate
   ========================================================= */
.trang { position: fixed; inset: 0; z-index: 20; overflow-y: auto; background: var(--nen); opacity: 0; pointer-events: none; transition: opacity .5s; overscroll-behavior: contain; }
body.v-about .about, body.v-contact .contact { opacity: 1; pointer-events: auto; }

/* từ khóa lăn + chữ nảy (giống bản chính) */
.nay { display: inline-block; transform-origin: 50% 100%; transition: transform .4s cubic-bezier(.34, 1.56, .64, 1), color .25s ease; }
.nay.n0 { transform: translateY(-.18em) rotate(-7deg); color: #e2b77a; }
.nay.n1 { transform: translateY(-.09em) rotate(-3deg); color: #d3b48b; }
.nay.n2 { transform: translateY(-.035em); }
.tu { display: inline-block; white-space: nowrap; }
.tu-khoa { position: relative; display: inline-block; vertical-align: bottom; height: 1.5em; padding-top: .3em; margin-top: -.3em; overflow: hidden; transition: width .55s cubic-bezier(.22, 1.15, .36, 1); }
.tu-khoa.dang-lan { clip-path: inset(.3em 0 0 0); }
.tu-khoa__ray { display: block; will-change: transform; }
.tu-khoa__tu { display: block; width: max-content; height: 1.2em; line-height: 1.2; font-style: italic; white-space: nowrap; }
.tu-khoa__gach { position: absolute; left: 0; right: .1em; bottom: .12em; height: .05em; min-height: 2px; background: var(--ho-phach); }

/* form brief */
.form-brief { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 18px; margin-top: 44px; }
.form-brief > .nhan { grid-column: 1 / -1; color: var(--bac); }
.form-brief__nhom { grid-column: 1 / -1; display: grid; grid-template-columns: 120px 1fr; gap: 10px; align-items: start; }
.form-brief__nhom > span { font-size: calc(11px + var(--ct)); letter-spacing: .08em; text-transform: uppercase; color: var(--mo); padding-top: 7px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { height: 38px; padding: 0 12px; border: 1px solid var(--vien); border-radius: 999px; font-size: calc(12px + var(--ct)); transition: background .25s, color .25s, border-color .25s; }
.chip:hover { border-color: var(--kem); }
.chip.dang { background: var(--kem); color: var(--den); border-color: var(--kem); }
.o-nhap { display: flex; flex-direction: column; gap: 6px; font-size: calc(11px + var(--ct)); letter-spacing: .08em; text-transform: uppercase; color: var(--mo); }
.o-nhap--rong { grid-column: 1 / -1; }
.o-nhap input, .o-nhap textarea { font: inherit; font-size: calc(15px + var(--ct)); letter-spacing: 0; text-transform: none; color: var(--kem); background: transparent; border: 0; border-bottom: 1px solid var(--vien); padding: 8px 0; resize: vertical; }
.o-nhap input:focus, .o-nhap textarea:focus { outline: none; border-bottom-color: var(--kem); }
.o-nhap--file input { font-size: calc(12px + var(--ct)); border-bottom-style: dashed; }
.form-brief__nut { grid-column: 1 / -1; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 8px; }
.form-brief__nut .nut-trang, .form-brief__nut .nut-vien { height: 38px; padding: 0 18px; }
.form-brief__tt { font-size: calc(12px + var(--ct)); color: var(--bac); }

.gach-loang { position: relative; text-decoration: none; padding-bottom: 3px;
  background: linear-gradient(90deg, var(--ho-phach), var(--kem) 60%, transparent) left bottom / 0% 1px no-repeat; transition: background-size .7s var(--em); }
.gach-loang:hover { background-size: 100% 1px; }

/* =========================================================
   XEM PHIM + TẢI PHIM
   ========================================================= */
/* ---------- TRANG DỰ ÁN (mục 24, theo milledollars.fr/works/…) ---------- */
.xem { position: fixed; inset: 0; z-index: 48; overflow-y: auto; overscroll-behavior: contain; background: var(--nen); opacity: 0; transform: translateY(24px); transition: opacity .5s ease, transform .7s var(--em); }
.xem.hien { opacity: 1; transform: none; }
.du-an__dong { position: fixed; z-index: 2; right: 18px; top: 64px; width: 42px; height: 42px; opacity: .8; }
.du-an__trong { width: min(1080px, calc(100vw - 48px)); margin: 0 auto; padding: 120px 0 80px; }
.du-an__dau { text-align: center; }
.xem__nhan { font-size: calc(11px + var(--ct)); letter-spacing: .14em; text-transform: uppercase; color: var(--mo); }
.xem__ten { margin-top: 10px; font-family: var(--f-a); font-weight: 400; font-size: clamp(34px, 4.6vw, 64px); line-height: 1.06; }
.du-an__tt { display: grid; grid-template-columns: 240px 1fr; gap: 24px 48px; margin: 64px auto 40px; max-width: 860px; }
.du-an__dl { display: grid; gap: 14px; font-size: calc(12px + var(--ct)); }
.du-an__dl dt { font-size: calc(10.5px + var(--ct)); letter-spacing: .12em; text-transform: uppercase; color: var(--mo); margin-bottom: 3px; }
.du-an__gt { font-size: calc(14px + var(--ct)); line-height: 1.6; max-width: 560px; }
.xem__khung { width: 100%; display: flex; flex-direction: column; gap: 10px; }
.xem__man { position: relative; background: #000; display: grid; place-items: center; border-radius: 10px; overflow: hidden; }
.xem__video { display: block; width: 100%; aspect-ratio: 16 / 9; max-height: calc(100dvh - 140px); background: #000; }
.xem__man.doc .xem__video { width: auto; height: min(calc(100dvh - 140px), 820px); aspect-ratio: 9 / 16; max-width: 100%; }
.xem__thanh { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.xem__chan { display: flex; align-items: center; gap: 4px; min-height: 36px; }
.xem__clip { display: flex; gap: 2px; flex-wrap: wrap; }
.xem__so-clip { min-width: 32px; height: 32px; border-radius: 999px; font-size: calc(11px + var(--ct)); opacity: .55; }
.xem__so-clip:hover { opacity: 1; }
.xem__so-clip.dang { opacity: 1; background: var(--kem); color: var(--den); }
.du-an__y { max-width: 560px; margin: 96px auto 0; font-size: calc(14px + var(--ct)); line-height: 1.7; white-space: pre-line; }
.du-an__muc { font-size: calc(10.5px + var(--ct)); font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--mo); margin-bottom: 18px; }
/* ảnh still: băng chuyền Prev 01/08 Next */
.du-an__still { margin: 110px auto 0; max-width: 900px; }
.du-an__still.doc { max-width: 420px; }
.du-an__bang { overflow: hidden; border-radius: 10px; background: var(--den-2); }
.du-an__ray { display: flex; transition: transform .8s var(--em); }
.du-an__ray img { flex: 0 0 100%; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; display: block; }
.du-an__still.doc .du-an__ray img { aspect-ratio: 9 / 16; }
.du-an__dk { display: flex; justify-content: center; align-items: center; gap: 22px; margin-top: 14px; font-size: calc(11px + var(--ct)); letter-spacing: .12em; text-transform: uppercase; }
.du-an__dk button { opacity: .6; transition: opacity .2s; text-transform: uppercase; letter-spacing: .12em; }
.du-an__dk button:hover { opacity: 1; }
.du-an__dk span { font-variant-numeric: tabular-nums; color: var(--mo); }
/* clip động ngắn */
.du-an__dong-ds { margin: 110px auto 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.du-an__dong-ds.doc { max-width: 720px; }
.du-an__dong-ds video, .du-an__bts-ds video, .du-an__bts-ds img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; display: block; border-radius: 8px; background: var(--den-2); }
.du-an__dong-ds.doc video { aspect-ratio: 9 / 16; }
/* hậu trường */
.du-an__bts { margin: 110px auto 0; }
.du-an__bts-ds { display: flex; gap: 14px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; }
.du-an__bts-ds::-webkit-scrollbar { display: none; }
.du-an__bts-ds > * { flex: 0 0 min(360px, 75vw); scroll-snap-align: start; aspect-ratio: 4 / 5 !important; }
/* credits */
.du-an__credits { margin: 110px auto 0; max-width: 560px; }
.du-an__cr { display: grid; gap: 6px; font-size: calc(12px + var(--ct)); }
.du-an__cr div { display: grid; grid-template-columns: 1fr auto 1fr; gap: 12px; }
.du-an__cr dt { text-align: right; color: var(--mo); }
.du-an__cr dt::after { content: " :"; }
/* cuối trang */
.du-an__cuoi { margin-top: 120px; padding-top: 28px; border-top: 1px solid var(--vien); display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 20px; }
.du-an__ke { display: flex; flex-direction: column; gap: 4px; text-align: left; font-size: calc(11px + var(--ct)); color: var(--mo); transition: color .2s; }
.du-an__ke b { font-weight: 500; font-size: calc(13px + var(--ct)); color: var(--kem); }
.du-an__ke:hover { color: var(--kem); }
.du-an__ke--sau { text-align: right; align-items: flex-end; }
body.dang-xem-du-an .goc-phai { display: none; }
@media (max-width: 760px) {
  .du-an__trong { width: calc(100vw - 32px); padding-top: 90px; }
  .du-an__dong { top: 56px; right: 8px; }
  .du-an__tt { grid-template-columns: 1fr; margin-top: 36px; }
  .du-an__dl { grid-template-columns: 1fr 1fr; }
  .du-an__dong-ds { grid-template-columns: 1fr; }
  .du-an__dong-ds.doc { grid-template-columns: repeat(3, 1fr); }
  .du-an__cuoi { grid-template-columns: 1fr 1fr; }
  .du-an__cuoi .nut-cta { grid-column: 1 / -1; grid-row: 1; justify-self: stretch; }
  .du-an__still, .du-an__dong-ds, .du-an__bts, .du-an__credits, .du-an__y { margin-top: 72px; }
}

.tai { position: fixed; inset: 0; z-index: 85; display: grid; place-items: center; }
.tai__nen { position: absolute; inset: 0; background: rgba(0, 0, 0, .6); }
.tai__hop { position: relative; width: min(980px, calc(100vw - 24px)); height: min(720px, calc(100dvh - 24px)); display: flex; flex-direction: column; background: var(--den-2); border: 1px solid var(--vien); }
.tai__dau { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; padding: 22px 22px 10px; }
.tai__tieu-de { font-family: var(--f-a); font-weight: 400; font-size: calc(32px + var(--ct)); line-height: 1.1; }
.tai__phu { font-size: calc(12px + var(--ct)); color: var(--mo); margin-top: 4px; }
.tai__cong-cu { display: flex; justify-content: space-between; padding: 4px 22px 12px; }
.tai__bang { flex: 1; min-height: 0; display: flex; flex-direction: column; border-top: 1px solid var(--vien); }
.tai__ds { flex: 1; overflow-y: auto; user-select: none; -webkit-user-select: none; }
.tai__hang { display: grid; grid-template-columns: 30px 88px minmax(0, 2.2fr) minmax(0, 1.4fr) 50px 76px 76px; align-items: center; gap: 12px; padding: 6px 22px; min-height: 54px; font-size: calc(12.5px + var(--ct)); border-bottom: 1px solid rgba(236, 228, 211, .07); }
.tai__hang--dau { min-height: 32px; font-size: calc(10px + var(--ct)); font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--mo); }
.tai__hang.chon { background: #3a3125; }
.tai__hang .mo { color: var(--mo); }
.tai__hang img { width: 88px; aspect-ratio: 16 / 9; object-fit: cover; display: block; }
.tai__hang--con img { width: 60px; margin-left: 28px; }
.tai__ten { display: flex; gap: 6px; align-items: center; min-width: 0; }
.tai__ten > span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tai__mo-ra { width: 16px; font-size: calc(9px + var(--ct)); transition: transform .2s; }
.tai__mo-ra.mo-rong { transform: rotate(90deg); }
.tick { width: 16px; height: 16px; border: 1px solid var(--vien); display: grid; place-items: center; }
.tick.co, .tick.mot-phan { background: var(--ho-phach); border-color: var(--ho-phach); }
.tick.co::after { content: ""; width: 8px; height: 4px; border-left: 2px solid #fff; border-bottom: 2px solid #fff; transform: translateY(-1px) rotate(-45deg); }
.tick.mot-phan::after { content: ""; width: 7px; height: 2px; background: #fff; }
.tai__chan { display: flex; justify-content: space-between; align-items: center; padding: 14px 22px; border-top: 1px solid var(--vien); font-size: calc(12.5px + var(--ct)); }
.tai__chan .nut-trang { height: 38px; padding: 0 20px; }

/* =========================================================
   ĐIỆN THOẠI
   ========================================================= */
@media (max-width: 760px) {
  :root { --ct: 1px; }

  .works__trong { width: calc(100vw - 24px); padding-top: 96px; }
  .works__thanh { flex-direction: column; align-items: flex-start; }
  .loc { flex-wrap: nowrap; overflow-x: auto; max-width: 100%; scrollbar-width: none; gap: 16px; }
  .loc::-webkit-scrollbar { display: none; }
  .loc button { white-space: nowrap; }
  .luoi { grid-template-columns: 1fr 1fr; gap: 22px 10px; }
  .the__ten { font-size: calc(12px + var(--ct)); }

  .xem__nut-dau .js-chep-link { display: none; }
  .tai__hang { grid-template-columns: 26px 60px minmax(0, 1fr) 58px; padding: 6px 12px; }
  .tai__hang img { width: 60px; }
  .tai__hang > :nth-child(4), .tai__hang > :nth-child(5), .tai__hang > :nth-child(6) { display: none; }
}
@media (min-width: 761px) and (max-width: 1100px) { .luoi { grid-template-columns: repeat(3, 1fr); } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; } }

/* =========================================================
   WORKS - tab Selected: lưới kéo vô tận trên mặt cầu (như bản chính), tông wet plate nhẹ nhàng
   ========================================================= */
.cau { display: none; position: fixed; inset: 0; z-index: 1; overflow: hidden; touch-action: none; }
.works.che-cau { overflow: hidden; }
.works.che-cau .cau { display: block; }
.works.che-cau .luoi { display: none; }
.works.che-cau .works__trong { position: relative; z-index: 3; pointer-events: none; }
.works.che-cau .works__thanh { pointer-events: auto; }
.cau::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: radial-gradient(ellipse 72% 68% at 50% 52%, transparent 38%, color-mix(in srgb, var(--den) 70%, transparent) 78%, var(--den) 100%); }
.cau__khung { position: absolute; inset: 0; cursor: grab; perspective-origin: 50% 52%; }
.cau__khung.dang-keo { cursor: grabbing; }
.o2 { position: absolute; left: 50%; top: 52%; background: var(--den-2); overflow: hidden; border-radius: 3px; backface-visibility: hidden; -webkit-backface-visibility: hidden; }
.o2 img, .o2 video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.o2 img { filter: grayscale(.25) sepia(.08); }
.o2 video { opacity: 0; transition: opacity .6s; }
.o2 video.chay { opacity: 1; }
.o2__chu { position: absolute; left: 0; right: 0; bottom: 0; padding: 30px 14px 10px; background: linear-gradient(transparent, rgba(10, 9, 8, .62)); color: #f1ebde; font-size: calc(12px + var(--ct)); font-weight: 600; pointer-events: none; }
.o2__chu small { display: block; font-weight: 400; font-size: calc(10.5px + var(--ct)); opacity: .75; margin-top: 2px; }
.cau__khung:hover .o2::after { opacity: .3; }
.o2::after { content: ""; position: absolute; inset: 0; background: var(--den); opacity: 0; transition: opacity .4s; pointer-events: none; }
.cau__khung:hover .o2:hover::after, .cau__khung.dang-keo .o2::after { opacity: 0; }
.cau__goi-y { position: absolute; left: 50%; bottom: 22px; transform: translateX(-50%); z-index: 2; font-size: calc(10.5px + var(--ct)); letter-spacing: .08em; text-transform: uppercase; color: var(--mo); transition: opacity .8s; pointer-events: none; }
.cau__goi-y.an { opacity: 0; }

/* =========================================================
   CONTACT - thông tin liên hệ + lời mời, nút CTA rõ ràng
   ========================================================= */
.tai__hang.chon { background: var(--ho-phach); color: #fff; }
.tai__hang.chon .mo { color: rgba(255, 255, 255, .8); }

/* ---------- nút sáng / tối ---------- */
.doi-mau { width: 32px; height: 32px; margin-left: 4px; border-radius: 50%; border: 1px solid var(--vien); display: grid; place-items: center; opacity: 1 !important; }
.doi-mau__mat { width: 10px; height: 10px; border-radius: 50%; background: currentColor; box-shadow: 0 -7px 0 -4px currentColor, 0 7px 0 -4px currentColor, 7px 0 0 -4px currentColor, -7px 0 0 -4px currentColor; transition: transform .4s; }
[data-giao-dien="toi"] .doi-mau__mat { background: transparent; box-shadow: inset 4px -2px 0 0 currentColor; transform: rotate(-20deg); }

@media (max-width: 760px) {
  .o2__chu { font-size: calc(11px + var(--ct)); padding: 22px 10px 8px; }
}

/* mặt cầu: nền mờ sau thanh tab để chữ không đè lên phim */
.works.che-cau .works__trong::before { content: ""; position: fixed; left: 0; right: 0; top: 0; height: 190px; z-index: -1; pointer-events: none; background: linear-gradient(var(--den) 45%, color-mix(in srgb, var(--den) 70%, transparent) 70%, transparent); }

/* =====================================================================
   MỤC 19 - chia sẻ · bộ sưu tập · trình chiếu · hướng dẫn
   ===================================================================== */
/* nút nhỏ trên ô phim */
.hd-hang { position: absolute; top: 8px; left: 8px; display: flex; gap: 6px; opacity: 0; transform: translateY(-4px); transition: opacity .3s, transform .3s; z-index: 2; }
.the:hover .hd-hang, .the:focus-within .hd-hang { opacity: 1; transform: none; }
@media (hover: none) { .hd-hang { opacity: 1; transform: none; } }
.hd { width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center; font-size: calc(14px + var(--ct)); line-height: 1; color: #f1ebde; background: rgba(18, 17, 16, .62); border: 1px solid rgba(241, 235, 222, .25); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); transition: background .25s, color .25s; }
.hd:hover { background: #f1ebde; color: #121110; }
.hd.da-co { background: #f1ebde; color: #121110; }
.hd[data-hd="them"].da-co::before { content: "✓"; }
.hd[data-hd="them"].da-co { font-size: 0; }
.hd[data-hd="them"].da-co::before { font-size: calc(13px + var(--ct)); }
.chi-dt { display: none; }
@media (hover: none) { .chi-dt { display: inline-block; } }

/* chú thích khi rê chuột + thông báo nhỏ */
.goi-y-noi { position: fixed; z-index: 120; padding: 4px 9px; border-radius: 4px; background: var(--kem); color: var(--den); font-size: calc(11px + var(--ct)); white-space: nowrap; pointer-events: none; opacity: 0; transition: opacity .2s; }
.goi-y-noi.hien { opacity: 1; }
.bao-nho { position: fixed; z-index: 121; left: 50%; bottom: 140px; transform: translate(-50%, 10px); padding: 9px 16px; border-radius: 999px; background: var(--kem); color: var(--den); font-size: calc(12px + var(--ct)); font-weight: 500; opacity: 0; pointer-events: none; transition: opacity .3s, transform .3s; }
.bao-nho.hien { opacity: 1; transform: translate(-50%, 0); }

/* khay bộ sưu tập (cạnh phải) */
.khay__tab { position: fixed; z-index: 70; right: 0; top: 50%; transform: translate(100%, -50%); writing-mode: vertical-rl; display: flex; align-items: center; gap: 8px; padding: 14px 8px; border-radius: 8px 0 0 8px; background: var(--kem); color: var(--den); font-size: calc(11px + var(--ct)); font-weight: 600; letter-spacing: .06em; text-transform: uppercase; transition: transform .45s cubic-bezier(.2, .7, .1, 1); box-shadow: 0 8px 24px rgba(0, 0, 0, .25); }
.khay.co .khay__tab { transform: translate(0, -50%); }
.khay__tab b { writing-mode: horizontal-tb; min-width: 20px; height: 20px; border-radius: 10px; background: var(--den); color: var(--kem); font-size: calc(11px + var(--ct)); line-height: 20px; text-align: center; }
.khay.nhun .khay__tab { animation: nhun .5s; }
@keyframes nhun { 40% { transform: translate(-6px, -50%) scale(1.06); } }
.khay__hop { position: fixed; z-index: 75; top: 0; right: 0; bottom: 0; width: min(400px, 100vw); display: flex; flex-direction: column; background: var(--den-2); border-left: 1px solid var(--vien); box-shadow: -20px 0 50px rgba(0, 0, 0, .3); transform: translateX(105%); transition: transform .45s cubic-bezier(.2, .7, .1, 1); }
.khay.mo .khay__hop { transform: none; }
.khay__dau { display: flex; gap: 12px; align-items: flex-start; justify-content: space-between; padding: 22px 20px 8px; }
.khay__dau > div { flex: 1; min-width: 0; }
.khay__ten { width: 100%; margin-top: 6px; padding: 4px 0; border: 0; border-bottom: 1px solid var(--vien); background: none; color: var(--kem); font-family: var(--f-a); font-size: calc(24px + var(--ct)); outline: none; }
.khay__ten::placeholder { color: var(--mo); }
.khay__phu { padding: 0 20px 10px; font-size: calc(11px + var(--ct)); color: var(--mo); }
.khay__ds { flex: 1; overflow-y: auto; list-style: none; margin: 0; padding: 0 12px; }
.khay__ds li { display: grid; grid-template-columns: 22px 22px 72px 1fr 26px; gap: 8px; align-items: center; padding: 8px; border-radius: 6px; cursor: pointer; transition: background .2s; }
.khay__ds li:hover { background: color-mix(in srgb, var(--kem) 6%, transparent); }
.khay__ds li.dang-keo { background: color-mix(in srgb, var(--kem) 12%, transparent); box-shadow: 0 6px 20px rgba(0, 0, 0, .25); }
.khay__ds li.khay__trong { display: block; padding: 30px 8px; text-align: center; color: var(--mo); cursor: default; }
.khay__keo { cursor: grab; touch-action: none; color: var(--mo); font-size: calc(14px + var(--ct)); letter-spacing: -2px; user-select: none; text-align: center; }
.khay__so { font-size: calc(10px + var(--ct)); color: var(--mo); }
.khay__ds img { width: 72px; aspect-ratio: 16 / 9; object-fit: cover; border-radius: 2px; }
.khay__chu { min-width: 0; }
.khay__chu b { display: block; font-size: calc(12px + var(--ct)); font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.khay__chu small { font-size: calc(10.5px + var(--ct)); color: var(--mo); }
.khay__bo { width: 26px; height: 26px; border-radius: 50%; color: var(--mo); }
.khay__bo:hover { color: var(--kem); background: color-mix(in srgb, var(--kem) 10%, transparent); }
.khay__chan { display: flex; flex-wrap: wrap; gap: 8px; padding: 14px 20px 20px; border-top: 1px solid var(--vien); }
.khay__chan .nut-trang { flex: 1 1 100%; height: 40px; font-size: calc(12px + var(--ct)); }
.khay__chan .nut-vien { flex: 1; }
.khay__xoa { flex: 1 1 100%; margin-top: 2px; font-size: calc(11px + var(--ct)); color: var(--mo); text-decoration: underline; }
body.dang-chieu .khay { display: none; }

/* trang bộ sưu tập */
.bo-xem { position: fixed; inset: 0; z-index: 45; overflow-y: auto; background: var(--nen); animation: hien .5s both; overscroll-behavior: contain; }
.bo-xem__trong { width: min(1180px, calc(100vw - 48px)); margin: 0 auto; padding: 120px 0 80px; }
.bo-xem__ten { margin-top: 10px; font-family: var(--f-a); font-weight: 400; font-size: clamp(calc(40px + var(--ct)), calc(6vw + var(--ct)), calc(84px + var(--ct))); line-height: 1; }
.bo-xem__loi { max-width: 640px; margin-top: 22px; font-family: var(--f-a); font-style: italic; font-size: calc(19px + var(--ct)); line-height: 1.45; }
.bo-xem__loi span { display: block; margin-top: 8px; font-family: var(--f-chu); font-style: normal; font-size: calc(11px + var(--ct)); letter-spacing: .08em; text-transform: uppercase; color: var(--mo); }
.bo-xem__nut { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin: 30px 0 44px; }
.bo-xem__nut .nut-cta { font-size: calc(15px + var(--ct)); }
.bo-xem__luoi { display: grid; grid-template-columns: repeat(3, 1fr); gap: 34px 22px; }
.bo-xem__so { position: absolute; left: 10px; bottom: 8px; font-family: var(--f-a); font-size: calc(28px + var(--ct)); color: #f1ebde; text-shadow: 0 2px 12px rgba(0, 0, 0, .5); }
.bo-xem__cuoi { display: flex; flex-wrap: wrap; gap: 22px; align-items: center; margin-top: 64px; padding-top: 30px; border-top: 1px solid var(--vien); }
body.dang-xem-bo .goc-phai, body.dang-xem-bo .goc-trai, body.dang-xem-bo .chon-ab { display: none; }

/* trình chiếu */
.chieu { position: fixed; inset: 0; z-index: 90; background: #000; color: #f1ebde; }
.chieu__video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; }
.chieu__video.mo-dan { animation: hien 1.2s both; }
.chieu__chu { position: absolute; left: 28px; top: 24px; opacity: 0; transform: translateY(-6px); transition: opacity .6s, transform .6s; pointer-events: none; text-shadow: 0 2px 14px rgba(0, 0, 0, .6); }
.chieu.hien-chu .chieu__chu, .chieu:not(.an-ui) .chieu__chu { opacity: 1; transform: none; }
.chieu__nhan { font-size: calc(10.5px + var(--ct)); letter-spacing: .1em; text-transform: uppercase; opacity: .8; }
.chieu__ten { margin-top: 4px; font-family: var(--f-a); font-size: calc(26px + var(--ct)); }
.chieu__thanh { position: absolute; left: 50%; bottom: 22px; transform: translateX(-50%); display: flex; gap: 8px; align-items: center; padding: 8px; border-radius: 999px; background: rgba(0, 0, 0, .5); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); transition: opacity .5s; }
.chieu__thanh .nut-vien, .chieu__thanh .nut-bt { color: #f1ebde; border-color: rgba(241, 235, 222, .25); }
.chieu__so { padding: 0 8px; font-size: calc(11px + var(--ct)); letter-spacing: .08em; opacity: .8; }
.chieu.an-ui { cursor: none; }
.chieu.an-ui .chieu__thanh { opacity: 0; pointer-events: none; }
.chieu__het { position: absolute; inset: 0; display: grid; place-content: center; gap: 14px; text-align: center; background: rgba(0, 0, 0, .78); }
.chieu__het[hidden] { display: none; }
.chieu__het h2 { font-family: var(--f-a); font-weight: 400; font-size: clamp(calc(34px + var(--ct)), calc(5vw + var(--ct)), calc(64px + var(--ct))); }
.chieu__het > div { display: flex; gap: 10px; justify-content: center; margin-top: 10px; }
.chieu__het .nut-vien { color: #f1ebde; border-color: rgba(241, 235, 222, .3); height: 44px; }

/* hướng dẫn 3 chức năng (lần đầu vào Work) */
.huong-dan { position: fixed; z-index: 30; left: 50%; bottom: 52px; transform: translateX(-50%); display: flex; align-items: stretch; gap: 2px; padding: 6px; border-radius: 12px; background: var(--den-2); border: 1px solid var(--vien); box-shadow: 0 14px 40px rgba(0, 0, 0, .35); animation: hien .6s .8s both; }
.huong-dan > button:not(.huong-dan__dong) { display: flex; gap: 10px; align-items: center; padding: 8px 14px 8px 8px; border-radius: 8px; text-align: left; font-size: calc(11px + var(--ct)); color: var(--mo); transition: background .25s; }
.huong-dan > button:hover { background: color-mix(in srgb, var(--kem) 8%, transparent); }
.huong-dan b { display: block; font-size: calc(12.5px + var(--ct)); font-weight: 600; color: var(--kem); }
.huong-dan__bt { width: 32px; height: 32px; flex: none; display: grid; place-items: center; border-radius: 50%; border: 1px solid var(--vien); font-size: calc(14px + var(--ct)); color: var(--kem); }
.huong-dan__dong { width: 28px; align-self: center; color: var(--mo); font-size: calc(12px + var(--ct)); }
body:not(.v-work) .huong-dan { display: none; }

@media (max-width: 760px) {
  .bo-xem__trong { width: calc(100vw - 32px); padding-top: 96px; }
  .bo-xem__luoi { grid-template-columns: 1fr; gap: 26px; }
  .bo-xem__loi { font-size: calc(16px + var(--ct)); }
  .chieu__thanh { bottom: 14px; gap: 4px; padding: 6px; max-width: calc(100vw - 16px); }
  .chieu__thanh .nut-vien { padding: 0 10px; font-size: calc(10px + var(--ct)); }
  .chieu__thanh .js-c-tieng { display: none; }
  .chieu__chu { left: 16px; top: 16px; }
  .huong-dan { left: 12px; right: 12px; bottom: 16px; transform: none; flex-direction: column; }
  .huong-dan__dong { position: absolute; top: 6px; right: 6px; }
  .khay__tab { padding: 12px 6px; font-size: calc(10px + var(--ct)); }
}

/* ---------- Work: nút trên ô mặt cầu, hướng dẫn luôn có, khay luôn thấy (góp ý #16) ---------- */
.o2 .hd-hang { z-index: 3; }
.o2:hover .hd-hang { opacity: 1; transform: none; }
.khay__tab { transform: translate(0, -50%); }
body.v-home .khay:not(.co) .khay__tab { transform: translate(100%, -50%); }
.huong-dan__mo { display: none !important; }
.huong-dan.thu-gon > button { display: none !important; }
.huong-dan.thu-gon > .huong-dan__mo { display: flex !important; gap: 10px; align-items: center; padding: 4px 14px 4px 4px; border-radius: 999px; font-size: calc(12px + var(--ct)); font-weight: 500; color: var(--kem); }
.huong-dan.thu-gon { padding: 4px; border-radius: 999px; animation: none; }
.huong-dan.thu-gon .huong-dan__bt { width: 28px; height: 28px; }


/* =====================================================================
   MỤC 21–23 - TỐI GIẢN "PHIM LÀ CHÍNH"
   Không hiệu ứng tráng ảnh. Nền trơn. Chữ nhỏ 12–15px, mỗi trang tối đa 1 chỗ chữ to (trang chủ không có).
   Nút phụ ẩn, hiện khi rê chuột / chạm. Chỉ 1 nút nổi bật: "Gửi brief cho Hạnh".
   ===================================================================== */

/* ---------- biểu tượng ---------- */
.bt { width: 18px; height: 18px; display: block; flex: none; }
.nut-bt { width: 36px; height: 36px; display: inline-grid; place-items: center; border-radius: 50%; color: inherit; opacity: .75; transition: opacity .25s, background .25s; }
.nut-bt:hover { opacity: 1; background: color-mix(in srgb, var(--kem) 10%, transparent); }
.nut-bt:disabled { opacity: .25; cursor: not-allowed; background: none; }

/* ---------- đầu trang: Hạnh Vũ · Works · About · Contact · sáng/tối ---------- */
.dau { position: fixed; z-index: 50; top: 0; left: 0; right: 0; display: flex; justify-content: space-between; align-items: center; padding: 18px 24px; pointer-events: none; }
.dau > * { pointer-events: auto; }
.dau__ten { font-family: var(--f-a); font-size: 22px; line-height: 1; letter-spacing: .01em; }
.dau__menu { display: flex; align-items: center; gap: 22px; font-size: 13px; font-weight: 500; }
.dau__menu button { opacity: .6; transition: opacity .3s; }
.dau__menu button:hover, .dau__menu button.dang { opacity: 1; }
.dau__menu button.dang { text-decoration: underline; text-underline-offset: 5px; }
.dau__mo-menu { display: none; font-size: 13px; font-weight: 500; }
.doi-mau { width: 30px; height: 30px; margin-left: 2px; border: 0; }

/* ---------- nút kêu gọi duy nhất ---------- */
.nut-cta { height: 44px; padding: 0 22px; border-radius: 999px; background: var(--kem); color: var(--den); font-size: 14px; font-weight: 600; transition: opacity .2s; }
.nut-cta:hover { opacity: .85; }
.goc-phai { position: fixed; z-index: 40; right: 24px; bottom: 20px; }
.goc-phai .nut-nho { height: 34px; padding: 0 14px; border-radius: 999px; font-size: 12.5px; font-weight: 500; letter-spacing: 0; }
body.v-contact .goc-phai, body.v-work .goc-phai { display: none; }

/* =========================================================
   TRANG CHỦ - phim to giữa màn hình, mép phim trước / sau lấp ló, 1 dòng chữ nhỏ
   ========================================================= */
.chu {
  position: fixed; inset: 0; z-index: 10; overflow: hidden; background: transparent; transition: opacity .5s;
  --lo: clamp(28px, 5vh, 56px);   /* phần phim trước / sau lấp ló */
  --chan: 44px;                   /* khoảng giữa 2 phim */
  /* nhỏ hơn bản trước 10% (mục 24) */
  --w: min(63vw, calc((100vh - 2 * var(--lo) - 2 * var(--chan)) * 16 / 9 * .9));
  --h: calc(var(--w) * 9 / 16);
  --s: calc(var(--h) + var(--chan));
}
body:not(.v-home) .chu { opacity: 0; pointer-events: none; }
.chu__cot, .chu__vung { position: absolute; left: calc(50% - var(--w) / 2); width: var(--w); top: calc(50% - var(--h) / 2); }
.chu__vung { height: var(--h); z-index: 3; cursor: pointer; border-radius: 10px; }
/* cả cột trượt; chậm lúc đầu để thấy phim thu nhỏ trước khi trượt (như milledollars.fr) */
.chu__cot { transition: transform .95s cubic-bezier(.72, 0, .18, 1); }
.chu__cot.khong-chuyen, .chu__cot.khong-chuyen .tam { transition: none !important; }
.chu__cot .tam { position: relative; width: var(--w); height: var(--h); margin-bottom: var(--chan); border-radius: 10px; overflow: hidden; background: var(--den-2) center / cover no-repeat; opacity: .4; cursor: pointer; transition: opacity .6s ease, transform .45s cubic-bezier(.3, 0, .2, 1); }
.chu__cot .tam:hover { opacity: .6; }
.chu__cot .tam.dang { opacity: 1; cursor: default; }
.chu.dang-chuyen .chu__cot .tam { transform: scale(.975); }
.chu__cot .tam video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity .4s; }
.chu__cot .tam.dang video { opacity: 1; }
/* lớp phủ rất nhẹ trên phim (như MilleDollars) */
/* lớp phủ như milledollars.fr: màn xám mờ phủ đều làm phim dịu, nhạt màu đi một chút; mép dưới đậm hơn rất nhẹ */
.chu__cot .tam::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(150, 150, 156, .16) 0%, rgba(120, 120, 126, .14) 55%, rgba(30, 30, 34, .22) 100%); pointer-events: none; }
/* nhãn hàng bên trái, tên phim bên phải, ngang giữa phim */
.chu__ben { position: absolute; z-index: 4; top: 50%; transform: translateY(-50%); width: calc(50% - var(--w) / 2 - 44px); display: flex; flex-direction: column; gap: 6px; font-size: 12.5px; font-weight: 500; letter-spacing: .08em; text-transform: uppercase; line-height: 1.35; pointer-events: none; transition: opacity .3s ease, transform .5s var(--em); }
.chu__ben--trai { right: calc(50% + var(--w) / 2 + 22px); text-align: right; align-items: flex-end; }
.chu__ben--phai { left: calc(50% + var(--w) / 2 + 22px); text-align: left; }
.chu__ben .js-so-chu { font-size: 11px; opacity: .55; letter-spacing: .1em; }
.chu.doi-chu .chu__ben { opacity: 0; transform: translateY(calc(-50% + 8px)); transition: opacity .2s ease, transform .2s; }
/* nút: chỉ hiện khi rê chuột / chạm */
.chu__nut { position: absolute; right: 14px; bottom: 14px; display: flex; gap: 8px; opacity: 0; transform: translateY(6px); transition: opacity .3s, transform .3s; }
.chu__vung:hover .chu__nut, .chu__vung.hien-nut .chu__nut { opacity: 1; transform: none; }
.chu.dang-chuyen .chu__nut { opacity: 0; }
.chu__nut button { height: 34px; padding: 0 14px; border-radius: 999px; background: rgba(18, 17, 16, .55); color: #f4efe4; border: 1px solid rgba(244, 239, 228, .3); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); font-size: 12px; font-weight: 500; letter-spacing: .04em; transition: background .25s, color .25s; }
.chu__nut button:hover { background: #f4efe4; color: #121110; }
/* dấu cuộn kín đáo sát mép dưới phim */
.chu__cuon { position: absolute; z-index: 4; left: calc(50% - 15px); top: calc(50% + var(--h) / 2 + (var(--chan) - 30px) / 2); width: 30px; height: 30px; display: grid; place-items: center; opacity: .55; transition: opacity .25s; }
.chu__cuon:hover { opacity: 1; }
.chu__cuon .bt { animation: mui-cuon 1.6s ease-in-out infinite; }
@keyframes mui-cuon { 50% { transform: translateY(3px); } }

/* =========================================================
   ABOUT - ảnh chân dung mờ dần lên, tiểu sử (chữ to duy nhất của trang)
   ========================================================= */
/* About theo East 64: chân dung chiếm nửa trái (đứng yên khi cuộn), nửa phải là chữ */
.about__chia { display: grid; grid-template-columns: 1fr 1fr; min-height: 100vh; }
.chan-dung { position: sticky; top: 0; height: 100vh; margin: 0; overflow: hidden; background: var(--den-2); }
.chan-dung img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 20%; display: block; filter: grayscale(1) contrast(1.04); opacity: 0; transform: scale(1.02); transition: opacity 1.2s ease, transform 1.6s var(--em); }
.about.hien .chan-dung img { opacity: 1; transform: none; }
.about__phai { padding: 130px clamp(28px, 6vw, 110px) 80px; display: flex; flex-direction: column; align-items: center; text-align: center; }
.about__ten { font-family: var(--f-a); font-weight: 400; font-size: clamp(34px, 3.4vw, 52px); line-height: 1.05; }
.about__vai { margin-top: 8px; font-size: calc(12px + var(--ct)); font-weight: 500; letter-spacing: .04em; }
.tieu-su { margin-top: 40px; max-width: 460px; text-align: left; font-size: calc(13px + var(--ct)); line-height: 1.65; }
.tieu-su p + p { margin-top: .9em; }
.about__nhom { display: grid; grid-template-columns: repeat(3, auto); gap: 18px 40px; margin-top: 44px; font-size: calc(12px + var(--ct)); line-height: 1.6; }
.about__nhom h2 { font-size: calc(10.5px + var(--ct)); font-weight: 500; color: var(--mo); margin-bottom: 8px; }
.tieu-su p, .nhan-hang, .about__dau, .about__nhom { opacity: 0; transform: translateY(10px); transition: opacity .9s ease, transform .9s var(--em); }
.about.hien .tieu-su p, .about.hien .nhan-hang, .about.hien .about__dau, .about.hien .about__nhom { opacity: 1; transform: none; }
.tieu-su p:nth-child(2) { transition-delay: .12s; }
.tieu-su p:nth-child(3) { transition-delay: .24s; }
.about.hien .about__nhom { transition-delay: .36s; }
.nhan-hang { margin-top: 44px; max-width: 460px; font-size: calc(10.5px + var(--ct)); letter-spacing: .08em; text-transform: uppercase; line-height: 1.8; color: var(--mo); transition-delay: .45s; }
.about__duoi { width: min(1340px, calc(100vw - 48px)); margin: 0 auto; padding: 90px 0 110px; }
.about__muc { text-align: center; font-family: var(--f-a); font-weight: 400; font-size: calc(20px + var(--ct)); margin: 0 0 30px; }
.about__muc + .luoi { margin-bottom: 110px; }
.about__bts { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.about__bts img, .about__bts video, .about__cho { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; display: block; border-radius: 6px; }
.about__cho { display: grid; place-items: center; background: var(--den-2); color: var(--mo); font-size: calc(11px + var(--ct)); }
@media (max-width: 760px) {
  .about__chia { grid-template-columns: 1fr; }
  .chan-dung { position: relative; height: 70vh; }
  .about__phai { padding: 40px 20px 40px; }
  .about__nhom { grid-template-columns: repeat(3, 1fr); gap: 14px; text-align: left; }
  .about__duoi { width: calc(100vw - 24px); padding-top: 40px; }
  .about__bts { grid-template-columns: 1fr 1fr; }
}
.about.hien .tieu-su p, .about.hien .nhan-hang { opacity: 1; transform: none; }
.tieu-su p:nth-child(2) { transition-delay: .15s; }
.tieu-su p:nth-child(3) { transition-delay: .3s; }
.nhan-hang { margin-top: 36px; font-size: calc(11px + var(--ct)); letter-spacing: .08em; text-transform: uppercase; line-height: 1.8; color: var(--mo); transition-delay: .45s; }

/* =========================================================
   CONTACT - 1 tiêu đề, form gọn, liên hệ bằng biểu tượng
   ========================================================= */
.contact__trong { width: min(720px, calc(100vw - 40px)); margin: 0 auto; padding: 120px 0 90px; }
.chao { font-size: calc(11px + var(--ct)); font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--mo); margin-bottom: 12px; }
.dong-who { font-family: var(--f-a); font-weight: 400; font-size: clamp(36px, 5vw, 64px); line-height: 1.08; }
.chao, .dong-who { opacity: 0; transform: translateY(12px); transition: opacity .8s ease, transform .9s var(--em); }
.dong-who { transition-delay: .12s; }
.contact.hien .chao, .contact.hien .dong-who { opacity: 1; transform: none; }
.form-brief { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 18px; margin-top: 40px; }
.form-brief__moi { grid-column: 1 / -1; font-size: calc(13px + var(--ct)); color: var(--mo); }
.o-nhap { display: block; }
.o-nhap--rong { grid-column: 1 / -1; }
.o-nhap input, .o-nhap textarea { width: 100%; font: inherit; font-size: calc(14px + var(--ct)); color: var(--kem); background: transparent; border: 0; border-bottom: 1px solid var(--vien); padding: 8px 0; resize: vertical; }
.o-nhap input::placeholder, .o-nhap textarea::placeholder { color: var(--mo); }
.o-nhap input:focus, .o-nhap textarea:focus { outline: none; border-bottom-color: var(--kem); }
.o-nhap--file input { font-size: calc(12px + var(--ct)); border-bottom-style: dashed; }
.nut-chu { grid-column: 1 / -1; justify-self: start; font-size: calc(12px + var(--ct)); color: var(--mo); padding: 4px 0; transition: color .2s; }
.nut-chu:hover { color: var(--kem); }
.form-brief__them { grid-column: 1 / -1; display: grid; gap: 12px; }
.form-brief__nhom { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { height: 32px; padding: 0 12px; border: 1px solid var(--vien); border-radius: 999px; font-size: calc(12px + var(--ct)); transition: background .25s, color .25s, border-color .25s; }
.chip:hover { border-color: var(--kem); }
.chip.dang { background: var(--kem); color: var(--den); border-color: var(--kem); }
.form-brief__nut { grid-column: 1 / -1; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 6px; }
.form-brief__tt { font-size: calc(12px + var(--ct)); color: var(--mo); }
.lien-he-bt { display: flex; flex-wrap: wrap; align-items: center; gap: 4px; margin-top: 48px; }
.lien-he-bt .nut-bt { width: 40px; height: 40px; }
.lien-he-bt .bt { width: 20px; height: 20px; }
.lien-he-bt__chu { margin-left: 10px; font-size: calc(12.5px + var(--ct)); color: var(--mo); }

/* ---------- khung xem phim + bảng tải: nút biểu tượng ---------- */
.xem__nut-dau { display: flex; gap: 2px; align-items: center; }

/* ---------- điện thoại ---------- */
@media (max-width: 760px) {
  .dau { padding: 14px 16px; }
  .dau__ten { font-size: 20px; }
  .dau__mo-menu { display: block; }
  .dau__menu { display: none; position: absolute; top: 100%; right: 12px; flex-direction: column; align-items: flex-end; gap: 4px; padding: 10px 16px; border-radius: 10px; background: var(--den-2); font-size: 15px; }
  .dau.mo .dau__menu { display: flex; }
  .dau__menu button { padding: 6px 0; }
  .chu__nut { right: 10px; bottom: 10px; }
  .goc-phai { right: 12px; bottom: 14px; }
  .form-brief { grid-template-columns: 1fr; }
}

/* nút nhỏ trên ô phim: đã có trong bộ thì hiện dấu ✓ thay biểu tượng */
.hd .bt { width: 16px; height: 16px; }
.hd[data-hd="them"].da-co .bt { display: none; }
.huong-dan__bt .bt { width: 15px; height: 15px; }
.js-them-bo-xem.da-co { background: var(--kem); color: var(--den); opacity: 1; }
/* tab bộ sưu tập: luôn thấy ở Works; trang khác chỉ hiện khi đã có phim trong bộ (điện thoại: chỉ ở Works) */
body:not(.v-work) .khay:not(.co) .khay__tab { transform: translate(100%, -50%); }
@media (max-width: 760px) { body:not(.v-work) .khay .khay__tab { transform: translate(100%, -50%); } }
/* Contact: từ khóa luôn nằm trên dòng riêng - không nhảy dòng, không lúc nào trống (góp ý #23) */
.dong-who .tu-khoa { display: block; }
/* luật 7: không đổ bóng, không viền hộp */
.huong-dan, .khay__tab, .khay__hop { box-shadow: none; }
.huong-dan { border: 0; }
/* điện thoại: dải hướng dẫn 1 hàng ngang, chỉ biểu tượng + tên, bỏ câu giải thích */
@media (max-width: 760px) {
  .huong-dan { flex-direction: row !important; left: 12px; right: 12px; transform: none; bottom: 14px; justify-content: space-between; padding: 4px; }
  .huong-dan > button:not(.huong-dan__dong):not(.huong-dan__mo) { padding: 6px 8px 6px 6px; gap: 6px; }
  .huong-dan > button > span:last-child { font-size: 0; }
  .huong-dan b { font-size: 13px; }
  .huong-dan.thu-gon { left: auto; right: 12px; }
}
@media (max-width: 760px) { .huong-dan__dong { display: none; } .huong-dan.thu-gon > .huong-dan__mo { display: none !important; } .huong-dan.thu-gon > button:not(.huong-dan__mo):not(.huong-dan__dong) { display: flex !important; } .huong-dan.thu-gon { left: 12px; right: 12px; padding: 4px; border-radius: 12px; } }

/* trang chủ trên điện thoại: phim gần tràn ngang, nhãn hàng / tên phim nằm ngay dưới phim */
@media (max-width: 760px) {
  .chu { --w: calc(100vw - 32px); --chan: 64px; --lo: 0px; }
  .chu__ben { top: calc(50% + var(--h) / 2 + 12px); transform: none; width: calc(50% - 16px - 20px); font-size: 11.5px; gap: 2px; }
  .chu__ben--trai { right: auto; left: 16px; text-align: left; align-items: flex-start; }
  .chu__ben--phai { left: auto; right: 16px; text-align: right; }
  .chu.doi-chu .chu__ben { transform: translateY(6px); }
  .chu__cuon { display: none; }
}

/* =====================================================================
   NỀN (mục 24.6): không đen / trắng trơn. 3 phương án, chọn bằng ?nen=a|b|c (trang thử: thu-nen.html)
   --den vẫn là màu nền chính (dùng cho các ô, khay…); --nen là lớp nền toàn trang.
   ===================================================================== */
:root, [data-giao-dien="toi"] { --den: #1d1d1e; --den-2: #262627; }
[data-giao-dien="sang"] { --den: #e7e5e1; --den-2: #dcd9d3; }
/* A - xám, sáng nhẹ ở giữa như có đèn chiếu */
:root, [data-nen="a"] { --nen: radial-gradient(120% 90% at 50% 38%, #29292b 0%, #1d1d1e 55%, #161617 100%); }
[data-giao-dien="sang"], [data-giao-dien="sang"][data-nen="a"] { --nen: radial-gradient(120% 90% at 50% 38%, #f2f1ee 0%, #e7e5e1 55%, #dad7d1 100%); }
/* B - xám trơn + hạt rất mờ như giấy ảnh */
[data-nen="b"] { --nen: var(--den); }
[data-nen="b"] body::before { content: ""; position: fixed; inset: 0; z-index: 46; pointer-events: none; background: var(--hat); opacity: .05; mix-blend-mode: overlay; }
/* C - xám ấm, đậm dần từ trên xuống */
[data-nen="c"] { --den: #211f1d; --den-2: #2a2826; --nen: linear-gradient(180deg, #272523 0%, #1d1c1a 60%, #181715 100%); }
/* sáng dịu (mục 25.8): xám ấm tầm trung như giấy xám - không trắng, không kem nhạt, để phim vẫn nổi */
[data-giao-dien="sang"][data-nen="c"] { --den: #c4beb4; --den-2: #b8b2a8; --kem: #191715; --bac: #45403a; --mo: rgba(25, 23, 21, .62); --vien: rgba(25, 23, 21, .22);
  --nen: linear-gradient(180deg, #cbc5bb 0%, #c2bcb2 60%, #b8b2a8 100%); }
body { background: var(--nen); background-attachment: fixed; }

/* =====================================================================
   NÚT "GỬI BRIEF CHO HẠNH" (mục 24.7): to, dễ thấy - nút nổi bật duy nhất
   ===================================================================== */
.goc-phai .nut-nho { height: 48px; padding: 0 24px; border: 0; border-radius: 999px; background: var(--kem); color: var(--den); font-size: 14.5px; font-weight: 600; letter-spacing: 0; transition: transform .2s, opacity .2s; }
.goc-phai .nut-nho:hover { transform: translateY(-1px); opacity: .9; }
@media (max-width: 760px) {
  .goc-phai { right: 16px; bottom: max(16px, env(safe-area-inset-bottom)); }
  .goc-phai .nut-nho { height: 52px; padding: 0 26px; font-size: 15px; }
}
/* thanh menu: nền mờ dần phía sau khi ở Works / About / Contact / trang dự án, để chữ menu không đè lên nội dung */
.dau::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: calc(100% + 28px); z-index: -1; pointer-events: none; background: linear-gradient(var(--den) 45%, transparent); opacity: 0; transition: opacity .4s; }
body:not(.v-home) .dau::before, body.dang-xem-du-an .dau::before { opacity: 1; }
body.v-about:not(.dang-xem-du-an) .dau::before { opacity: 0; }
@media (max-width: 760px) { body.v-about .dau::before { opacity: 1; } }

/* đang xem phim (trang dự án đang phát, khung xem toàn màn hình): nền tự tối lại như tắt đèn rạp */
html.tat-den { --den: #171614 !important; --den-2: #201e1c !important; --kem: #ece4d3 !important; --mo: rgba(236, 228, 211, .45) !important; --vien: rgba(236, 228, 211, .16) !important; --nen: #141312 !important; }
html.tat-den body, html.tat-den .xem { transition: background .8s ease, color .8s ease; }

/* Contact: điện thoại · email · Instagram ngay dưới lời chào (góp ý #26) */
.lien-he-dong { display: flex; flex-wrap: wrap; gap: 10px 26px; margin-top: 26px; font-size: calc(14px + var(--ct)); opacity: 0; transform: translateY(12px); transition: opacity .8s ease .24s, transform .9s var(--em) .24s; }
.contact.hien .lien-he-dong { opacity: 1; transform: none; }
.lien-he-dong a, .lien-he-dong button { display: inline-flex; align-items: center; gap: 9px; text-decoration: none; opacity: .85; transition: opacity .2s; }
.lien-he-dong a:hover, .lien-he-dong button:hover { opacity: 1; }
.lien-he-dong .bt { width: 17px; height: 17px; opacity: .7; }

/* =====================================================================
   TRANG DỰ ÁN (mục 25.6, theo east64films.com/works/…)
   ===================================================================== */
.du-an__trong { width: min(1240px, calc(100vw - 48px)); padding-top: 96px; }
/* phim mở ra nhỏ rồi phóng to dần */
.du-an .xem__khung { transform-origin: 50% 30%; transition: transform 1.3s cubic-bezier(.22, 1, .36, 1), opacity .8s ease; }
.du-an .xem__khung.mo-dau { transform: scale(.55); opacity: 0; transition: none; }
.du-an .xem__video { max-height: calc(100dvh - 150px); }
.du-an__dau { text-align: center; margin-top: 56px; }
.du-an .xem__ten { margin: 0; font-size: clamp(30px, 3.6vw, 52px); }
.du-an .xem__nhan { margin-top: 10px; }
.du-an__gt { max-width: 620px; margin: 26px auto 0; text-align: center; font-size: calc(14px + var(--ct)); line-height: 1.65; }
.du-an__y { margin-top: 40px; text-align: center; }
.du-an__credits { margin-top: 70px; text-align: center; }
.du-an__cr div { grid-template-columns: 1fr 1fr; }
/* gallery 2 hàng tự trôi */
.du-an__gallery { margin: 110px calc(50% - 50vw) 0; }
.du-an__gallery .du-an__muc { text-align: center; }
.du-an__hang { overflow: hidden; padding: 7px 0; }
.du-an__bang-troi { display: flex; gap: 14px; width: max-content; will-change: transform; }
.du-an__o { flex: none; height: clamp(150px, 19vw, 270px); aspect-ratio: 16 / 9; border-radius: 6px; overflow: hidden; background: var(--den-2); cursor: zoom-in; }
.du-an__gallery.doc .du-an__o { aspect-ratio: 9 / 16; }
.du-an__o img, .du-an__o video { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .6s var(--em); }
.du-an__o:hover img { transform: scale(1.04); }
.du-an__lien-quan { margin-top: 120px; }
.du-an__lien-quan .du-an__muc { text-align: center; }
.du-an__luoi { grid-template-columns: repeat(4, 1fr); }
.du-an__lien-quan .du-an__cuoi { display: flex; justify-content: center; margin-top: 64px; padding: 0; border: 0; }
.du-an__lien-quan .nut-cta { height: 52px; padding: 0 30px; font-size: 15px; }
.du-an__to { position: fixed; inset: 0; z-index: 5; display: grid; place-items: center; background: rgba(10, 10, 10, .92); cursor: zoom-out; }
.du-an__to img { max-width: 92vw; max-height: 88vh; border-radius: 6px; }
.du-an__to .nut-bt { position: absolute; top: 18px; right: 18px; color: #eee; }
@media (max-width: 760px) {
  .du-an__trong { width: calc(100vw - 24px); padding-top: 70px; }
  .du-an__luoi { grid-template-columns: 1fr 1fr; }
  .du-an__o { height: 120px; }
}

/* =====================================================================
   DẢI HẬU TRƯỜNG CHẠY NGANG ở About (mục 25.2, tham khảo paragonproductions.co/why-paragon)
   ===================================================================== */
.ngang { position: relative; }
.ngang__dinh { position: sticky; top: 0; height: 100vh; overflow: hidden; display: flex; align-items: center; }
.ngang__ray { display: flex; align-items: center; padding: 0 8vw; will-change: transform; }
.ngang__ray > * { flex: none; }
.ngang__mo { width: min(420px, 70vw); margin-right: 4vw; }
.ngang__mo h2 { font-family: var(--f-a); font-weight: 400; font-size: clamp(30px, 3.6vw, 52px); line-height: 1.08; margin-top: 10px; }
.ngang__nho { font-size: calc(11px + var(--ct)); font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--mo); }
/* ảnh tách nền: chồng lên nhau, lệch cao thấp */
.ngang__tach { margin: 0 -3vw; position: relative; z-index: 2; transform: translateY(var(--y)); }
.ngang__tach img { height: min(62vh, 560px); width: auto; display: block; filter: drop-shadow(0 18px 30px rgba(0, 0, 0, .25)); }
/* ảnh giữ khung: nghiêng nhẹ, nằm dưới ảnh tách nền */
.ngang__khung { margin: 0 1vw; position: relative; z-index: 1; transform: translateY(var(--y)) rotate(var(--xoay)); }
.ngang__khung img { height: min(40vh, 360px); width: auto; display: block; border-radius: 3px; }
/* nhãn hàng theo năm */
.ngang__nhom { margin: 0 6vw; width: min(300px, 64vw); position: relative; z-index: 3; }
.ngang__nam { font-family: var(--f-a); font-size: clamp(44px, 5vw, 76px); line-height: 1; }
.ngang__nhan { margin-top: 22px; display: flex; flex-direction: column; gap: 14px; font-size: calc(12px + var(--ct)); font-weight: 500; letter-spacing: .06em; text-transform: uppercase; }
.ngang__nhan div { display: flex; gap: 14px; align-items: center; min-height: 24px; }
.ngang__nhan img { height: 22px; width: auto; max-width: 160px; object-fit: contain; filter: brightness(0) invert(.88); }
[data-giao-dien="sang"] .ngang__nhan img { filter: brightness(0) opacity(.82); }
.ngang__het { margin-left: 8vw; display: flex; flex-direction: column; gap: 18px; align-items: flex-start; }
@media (max-width: 760px) {
  .ngang__tach img { height: 48vh; }
  .ngang__khung img { height: 30vh; }
}
/* nhóm nhiều nhãn hàng: 2 cột, chữ năm không xuống dòng */
.ngang__nhom { width: auto; max-width: 560px; }
.ngang__nam { white-space: nowrap; }
.ngang__nhan { display: grid; grid-template-columns: repeat(2, minmax(180px, 1fr)); gap: 8px 30px; margin-top: 18px; }
.ngang__nhan div { min-height: 22px; }
@media (max-width: 760px) { .ngang__nhan { grid-template-columns: repeat(2, minmax(130px, 1fr)); font-size: 11px; } .ngang__nhom { max-width: 320px; } }

/* =====================================================================
   MỤC 26
   ===================================================================== */
/* 9. menu dễ thấy hơn: to hơn, có nền mờ để nổi trên phim, mục đang xem đánh dấu rõ */
.dau__menu { gap: 4px; padding: 4px; border-radius: 999px; background: color-mix(in srgb, var(--den) 62%, transparent); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); font-size: 14.5px; }
.dau__menu button[data-di] { padding: 8px 15px; border-radius: 999px; opacity: .78; transition: opacity .2s, background .25s, color .25s; }
.dau__menu button[data-di]:hover { opacity: 1; background: color-mix(in srgb, var(--kem) 10%, transparent); }
.dau__menu button.dang { opacity: 1; text-decoration: none; background: var(--kem); color: var(--den); font-weight: 600; }
.dau__menu .doi-mau { margin: 0 4px; }
.dau__ten { font-size: 24px; }
@media (max-width: 760px) {
  .dau__mo-menu { font-size: 15px; font-weight: 600; padding: 8px 16px; border-radius: 999px; background: color-mix(in srgb, var(--den) 62%, transparent); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
  .dau__menu { border-radius: 14px; background: var(--den-2); backdrop-filter: none; }
  .dau__menu button[data-di] { padding: 10px 16px; }
}
/* 10. lớp phủ đen có hạt ~20% trên phim trang chủ (như milledollars.fr) */
.chu__cot .tam::after { background: var(--hat), rgba(0, 0, 0, .2); background-size: 160px 160px, auto; mix-blend-mode: normal; }
.chu__cot .tam::before { content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none; background: var(--hat); background-size: 120px 120px; opacity: .55; mix-blend-mode: overlay; }
/* 5. cuộn từng phim mượt hơn: bắt đầu ngay, chậm dần như có quán tính (kiểu milledollars.fr); chạy trên GPU */
.chu__cot { transition: transform 1s cubic-bezier(.16, 1, .3, 1); will-change: transform; }
.chu.dang-chuyen .chu__cot .tam { transform: none; }
.chu__cot .tam { transition: opacity .6s ease; backface-visibility: hidden; }

/* 4. bảng chọn nhanh: phim đang chiếu giữ nguyên chỗ nhưng mờ nhòe + tối đi; dãy ảnh nhỏ nổi phía trước */
.chu__cot .tam.dang { transition: opacity .6s ease, filter .55s ease; }
.chu.chon-nhanh-mo .chu__cot .tam { filter: blur(16px) brightness(.45); }
.chu.chon-nhanh-mo .chu__ben, .chu.chon-nhanh-mo .chu__cuon, .chu.chon-nhanh-mo .chu__vung { opacity: 0; pointer-events: none; }
.chon-nhanh { position: absolute; inset: 0; z-index: 6; display: flex; flex-direction: column; justify-content: center; opacity: 0; pointer-events: none; transition: opacity .45s ease; }
.chu.chon-nhanh-mo .chon-nhanh { opacity: 1; pointer-events: auto; }
.chon-nhanh__ray { display: flex; gap: 14px; align-items: center; margin-left: 50%; transition: transform .55s cubic-bezier(.16, 1, .3, 1); }
.cn-o { position: relative; flex: none; width: clamp(150px, 15vw, 230px); aspect-ratio: 16 / 9; border-radius: 8px; overflow: hidden; background: #000; opacity: .7; transform: scale(.94); transition: opacity .3s, transform .45s cubic-bezier(.16, 1, .3, 1), box-shadow .3s; cursor: pointer; }
.cn-o img, .cn-o video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.cn-o.dang, .cn-o.tro { opacity: 1; transform: scale(1.06); box-shadow: 0 0 0 2px #f4efe4; }
.cn-o__ten { position: absolute; left: 0; right: 0; bottom: 0; padding: 18px 10px 7px; background: linear-gradient(transparent, rgba(0, 0, 0, .65)); color: #f4efe4; font-size: 11.5px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; text-align: left; opacity: 0; transition: opacity .3s; }
.cn-o.dang .cn-o__ten, .cn-o.tro .cn-o__ten { opacity: 1; }
.chon-nhanh__goi-y { margin-top: 26px; text-align: center; color: #f4efe4; opacity: .7; font-size: 12px; letter-spacing: .08em; text-transform: uppercase; }
.chon-nhanh .cn-o:not(.dang) { transform: scale(.9) translateY(14px); transition-delay: 0s; }
.chu.chon-nhanh-mo .cn-o:not(.dang) { transform: scale(.94); }
@media (max-width: 760px) { .cn-o { width: 42vw; } }

/* =====================================================================
   26.3 DẢI HẬU TRƯỜNG - làm lại tinh tế: nhiều khoảng trống, không đổ bóng, màu ảnh dịu theo nền xám ấm
   ===================================================================== */
.ngang__ray { gap: 0; padding: 0 10vw; }
.ngang__ray img { filter: saturate(.72) sepia(.12) contrast(.96) brightness(.98); }
.ngang__tach, .ngang__khung { display: none; }
.ngang__chon { position: absolute; left: 10vw; top: 12vh; display: flex; gap: 10px; align-items: center; font-size: 12px; color: var(--mo); }
.ngang__chon a { padding: 5px 12px; border-radius: 999px; border: 1px solid var(--vien); text-decoration: none; color: var(--kem); }
.ngang__chon a.dang { background: var(--kem); color: var(--den); }
.ngang__mo { margin-right: 9vw; }
.ngang__nhom { margin: 0 8vw; }
.ngang__nhan { gap: 6px 26px; font-size: 11px; }
.ngang__nhan img { height: 16px; }
.ngang__het { margin-left: 10vw; }
/* A - người bật ra khỏi khung */
.bra { position: relative; margin: 0 5vw; transform: translateY(var(--y)); }
.bra img { display: block; height: var(--cao); width: auto; }
.bra--lon { --cao: min(58vh, 520px); } .bra--vua { --cao: min(44vh, 400px); } .bra--nho { --cao: min(32vh, 290px); }
.bra { --cat: 26%; }
.bra__nen { clip-path: inset(var(--cat) 0 0 0 round 3px); }
.bra__nguoi { position: absolute; inset: 0; width: 100% !important; height: 100% !important; clip-path: inset(0 0 calc(100% - var(--cat)) 0); }
.khg { margin: 0 4vw; transform: translateY(var(--y)); }
.khg img { height: min(30vh, 270px); width: auto; display: block; border-radius: 3px; }
/* B - tạp chí tối giản */
.tcg { margin: 0 4.5vw; transform: translateY(var(--y)); }
.tcg img { display: block; width: auto; border-radius: 2px; }
.tcg--lon img { height: min(56vh, 500px); } .tcg--vua img { height: min(40vh, 360px); } .tcg--nho img { height: min(26vh, 240px); }
.tcn { margin: 0 3vw; transform: translateY(var(--y)); }
.tcn img { display: block; height: min(46vh, 420px); width: auto; }
@media (max-width: 760px) {
  .bra--lon { --cao: 44vh; } .bra--vua { --cao: 34vh; } .bra--nho { --cao: 26vh; }
  .tcg--lon img { height: 42vh; } .tcg--vua img { height: 32vh; } .tcg--nho img { height: 22vh; }
  .tcn img { height: 36vh; }
}
/* logo nhãn hàng luôn đơn sắc (không ăn bộ lọc chỉnh tông ảnh) */
.ngang__ray .ngang__nhan img { filter: brightness(0) invert(.88); }
[data-giao-dien="sang"] .ngang__ray .ngang__nhan img { filter: brightness(0) opacity(.82); }
.chon-nhanh__ray { position: relative; }

/* =====================================================================
   MỤC 27
   ===================================================================== */
/* 1–2. dải hậu trường: collage ảnh in, đặt sát ngay dưới Selected Works (không còn khoảng trống lớn) */
.about__duoi { padding-bottom: 20px; }
.ngang__dinh { align-items: center; }
.ngang__ray { padding: 0 8vw; }
.ngang__ray > .ngang__mo { margin-right: 5vw; }
.cum { display: flex; align-items: center; margin: 0 2.5vw; }
.in { position: relative; margin: 0 -1.6vw; padding: 9px 9px 30px; background: #efe9de; border-radius: 2px;
  box-shadow: 0 1px 1px rgba(0, 0, 0, .18), 0 8px 18px rgba(0, 0, 0, .22);
  transform: translateY(var(--y)) rotate(var(--xoay)); transition: transform .5s var(--em); }
.in::after { content: ""; position: absolute; inset: 0; pointer-events: none; border-radius: 2px; background: var(--hat); background-size: 140px; opacity: .18; mix-blend-mode: multiply; }
.in:hover { transform: translateY(calc(var(--y) - 6px)) rotate(0deg); z-index: 5; }
.in img { display: block; width: auto; filter: saturate(.82) sepia(.08) contrast(.97); }
.in--lon img { height: min(40vh, 360px); } .in--vua img { height: min(32vh, 290px); } .in--nho img { height: min(25vh, 230px); }
.in:nth-child(2) { z-index: 2; } .in:nth-child(3) { z-index: 1; }
.ngang__nhom { margin: 0 5vw; }
.ngang__thanh { position: absolute; left: 8vw; right: 8vw; bottom: 9vh; height: 2px; background: var(--vien); overflow: hidden; border-radius: 2px; }
.ngang__thanh span { position: absolute; inset: 0; background: var(--kem); transform-origin: 0 50%; transform: scaleX(0); }
.bra, .tcg, .tcn, .ngang__chon { display: none !important; }
@media (max-width: 760px) {
  .in--lon img { height: 30vh; } .in--vua img { height: 25vh; } .in--nho img { height: 20vh; }
  .in { padding: 6px 6px 20px; }
}

/* 3. lớp phủ phim trang chủ: đen trơn 10%, không hạt; phim mới hiện thì lớp phủ từ 0% → sau 0,5 giây đậm dần lên 10% */
.chu__cot .tam::before { display: none; }
.chu__cot .tam::after { background: #000; mix-blend-mode: normal; opacity: 0; transition: opacity .9s ease; }
.chu__cot .tam.dang::after { opacity: .1; transition: opacity 1.2s ease .5s; }
.chu__cot .tam:not(.dang)::after { opacity: 0; transition: none; }

/* 4. bảng chọn nhanh = POPUP NHỎ tại con trỏ, lướt dọc; phim phía sau giữ nguyên (chỉ tối rất nhẹ quanh popup) */
.chu.chon-nhanh-mo .chu__cot .tam { filter: none; }
.chu.chon-nhanh-mo .chu__ben, .chu.chon-nhanh-mo .chu__cuon, .chu.chon-nhanh-mo .chu__vung { opacity: 1; pointer-events: auto; }
.chon-nhanh { position: fixed; inset: auto; left: 0; top: 0; width: 240px; height: min(440px, 70vh); z-index: 30; display: block; overflow: hidden;
  border-radius: 14px; background: rgba(20, 19, 17, .72); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 0 0 100vmax rgba(0, 0, 0, .12), 0 18px 50px rgba(0, 0, 0, .45);
  opacity: 0; transform: scale(.94); transition: opacity .25s ease, transform .35s cubic-bezier(.16, 1, .3, 1); pointer-events: none; }
.chu.chon-nhanh-mo .chon-nhanh { opacity: 1; transform: none; pointer-events: auto; }
.chon-nhanh__ray { position: absolute; left: 0; right: 0; top: 50%; margin: 0; flex-direction: column; gap: 8px; padding: 0 12px; transition: transform .45s cubic-bezier(.16, 1, .3, 1); }
.cn-o { width: 100%; transform: none; transition: opacity .3s, box-shadow .3s; }
.cn-o.dang, .cn-o.tro { transform: none; }
.chon-nhanh .cn-o:not(.dang), .chu.chon-nhanh-mo .cn-o:not(.dang) { transform: none; }
.cn-o__ten { opacity: 0; }
.cn-o.dang .cn-o__ten { opacity: 1; }
.chon-nhanh__goi-y { position: absolute; left: 0; right: 0; bottom: 8px; margin: 0; font-size: 10px; opacity: .6; }

/* 5. Contact: lời mời gửi brief trong một khung nổi bật - lời kêu gọi chính của trang */
.form-brief { margin-top: 44px; padding: clamp(22px, 3vw, 34px); border-radius: 16px; background: color-mix(in srgb, var(--kem) 7%, var(--den-2)); border: 1px solid color-mix(in srgb, var(--kem) 22%, transparent); }
.form-brief__moi { font-family: var(--f-a); font-size: clamp(24px, 2.4vw, 32px); line-height: 1.2; color: var(--kem); margin-bottom: 6px; }
.form-brief .nut-cta { height: 50px; padding: 0 28px; font-size: 15px; }

/* 6. Works: hộp hướng dẫn nhỏ lần đầu */
.huong-dan { display: none !important; }
.hd-nho { position: fixed; z-index: 65; width: min(330px, calc(100vw - 24px)); padding: 14px 16px 10px; border-radius: 12px; background: var(--kem); color: var(--den); font-size: 13px; line-height: 1.4; box-shadow: 0 14px 40px rgba(0, 0, 0, .35); opacity: 0; transform: translateY(-6px); pointer-events: none; transition: opacity .3s, transform .4s var(--em); }
.hd-nho.hien { opacity: 1; transform: none; pointer-events: auto; }
.hd-nho::before { content: ""; position: absolute; top: -7px; left: var(--mui-x, 80%); width: 14px; height: 14px; margin-left: -7px; background: var(--kem); transform: rotate(45deg); border-radius: 2px; }
.hd-nho__dau { font-size: 10.5px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; opacity: .55; margin-bottom: 8px; }
.hd-nho__dong { display: grid; grid-template-columns: 26px 1fr 16px; gap: 8px; align-items: center; margin: 6px 0; }
.hd-nho__bt { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; background: var(--den); color: var(--kem); }
.hd-nho__bt .bt { width: 14px; height: 14px; }
.hd-nho__mui { font-size: 16px; font-weight: 700; text-align: right; }
.hd-nho__tat { margin-top: 8px; font-size: 11px; opacity: .55; }
.nhan-manh { animation: nhan-manh 1.6s ease-in-out infinite; }
@keyframes nhan-manh { 0%, 100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--kem) 55%, transparent); } 50% { box-shadow: 0 0 0 8px transparent; } }

/* 7. nút đóng trang xem phim: to, tương phản rõ trên mọi phim, luôn ở góc dễ thấy */
.du-an__dong { position: fixed; z-index: 4; right: 22px; top: 76px; height: 48px; padding: 0 20px 0 14px; display: flex; align-items: center; gap: 8px; border-radius: 999px; background: var(--kem); color: var(--den); font-size: 14px; font-weight: 600; box-shadow: 0 6px 22px rgba(0, 0, 0, .35); transition: transform .2s; opacity: 1; }
.du-an__dong:hover { transform: scale(1.05); }
.du-an__dong-bt .bt { width: 18px; height: 18px; }
@media (max-width: 760px) { .du-an__dong { top: 64px; right: 12px; height: 44px; padding: 0 16px 0 12px; } }
.du-an__dong { width: auto !important; }
/* bảng chọn nhanh: dãy ảnh không trượt - mở ra là hiện ngay đúng chỗ */
.chon-nhanh__ray { transition: none !important; }
.cn-o video { opacity: 0; transition: opacity .3s; }
.cn-o video.chay { opacity: 1; }
/* dải xem nhanh trôi mượt theo từng khung hình: độ mờ đổi liên tục, không chờ hiệu ứng */
.chon-nhanh .cn-o { transition: box-shadow .3s; }

/* MỤC 28.1 - nút "Bật tiếng" khi phim tự phát không tiếng */
.xem__bat-tieng { position: absolute; left: 16px; top: 16px; z-index: 2; height: 44px; padding: 0 18px; border-radius: 999px; background: var(--kem); color: var(--den); font-size: 14px; font-weight: 600; box-shadow: 0 6px 20px rgba(0, 0, 0, .35); animation: nhan-manh 1.6s ease-in-out infinite; }

/* ghim #36: logo đơn sắc, mỗi logo đứng riêng rải đều giữa các cụm ảnh, nhãn lớn to hơn */
.ngang__nhom { display: none; }
.lg-khe { display: flex; align-items: center; gap: 3.2vw; margin: 0 2.6vw; height: 70vh; }
.lg { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.lg--tren { transform: translateY(-17vh); }
.lg--duoi { transform: translateY(17vh); }
.lg__hinh { display: flex; align-items: center; gap: 14px; }
.lg__hinh img { width: auto; max-width: 190px; object-fit: contain; filter: none; opacity: .92; }
.lg--lon .lg__hinh img { height: 46px; max-width: 230px; }
.lg--vua .lg__hinh img { height: 30px; }
.lg__hinh img.lg__svg { filter: brightness(0) invert(.92) !important; }
.lg__hinh span { font-size: calc(11px + var(--ct)); font-weight: 600; letter-spacing: .08em; text-transform: uppercase; white-space: nowrap; opacity: .85; }
.lg--lon .lg__hinh span { font-size: calc(14px + var(--ct)); }
.lg__nam { font-size: 11px; letter-spacing: .1em; color: var(--mo); }
/* chế độ sáng: logo trắng → tối */
[data-giao-dien="sang"] .lg__hinh img { filter: brightness(0) opacity(.82); }
[data-giao-dien="sang"] .lg__hinh img.lg__svg { filter: brightness(0) opacity(.82) !important; }
.ngang__ray .lg__hinh img { filter: none; }
[data-giao-dien="sang"] .ngang__ray .lg__hinh img { filter: brightness(0) opacity(.82); }
.ngang__ray .lg__hinh img.lg__svg { filter: brightness(0) invert(.92); }
@media (max-width: 760px) { .lg--lon .lg__hinh img { height: 32px; } .lg--vua .lg__hinh img { height: 22px; } .lg-khe { gap: 6vw; } }
[data-giao-dien="sang"] .ngang__ray .lg__hinh img.lg__svg { filter: brightness(0) opacity(.82); }
.lg--vua .lg__hinh img { height: 38px; }
.lg--lon .lg__hinh img { height: 52px; }
.lg--vua .lg__hinh img.lg--vuong { height: 60px; } .lg--lon .lg__hinh img.lg--vuong { height: 78px; }
.lg--vua .lg__hinh img.lg--dung { height: 74px; } .lg--lon .lg__hinh img.lg--dung { height: 92px; }

/* ===== Mục 29 ===== */
/* 29.3 logo About: cỡ do app.js tính (canLogo) - bỏ các cỡ cố định cũ */
.lg-khe .lg__hinh img, .lg-khe .lg__hinh img.lg--vuong, .lg-khe .lg__hinh img.lg--dung { max-width: none; }
.lg-khe { gap: 4.2vw; }
.lg__hinh { gap: 22px; }

/* trang chủ: ảnh bìa là thẻ img (hiện ngay), phim đè lên */
.chu__cot .tam__anh { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; pointer-events: none; }

/* 29.1 gợi ý đổi phim (máy tính) */
.chu__goi-y { position: absolute; left: 24px; bottom: 30px; z-index: 6; margin: 0; display: grid; gap: 8px; line-height: 20px; font-size: 12px; color: var(--mo); opacity: 0; transform: translateY(4px); transition: opacity .9s ease, transform .9s ease; pointer-events: none; }
.chu__goi-y.hien { opacity: 1; transform: none; }
.chu__goi-y kbd { display: inline-grid; place-items: center; min-width: 20px; height: 20px; padding: 0 5px; border: 1px solid var(--vien); border-radius: 4px; font: inherit; font-size: 11px; line-height: 1; }
.chu__goi-y kbd + kbd { margin-left: -2px; }

/* 29.2 nút "Xem tất cả phim" (chỉ điện thoại) - kiểu phụ, không tranh với nút brief */
.chu__tat-ca { display: none; }
@media (max-width: 760px), (hover: none) and (pointer: coarse) {
  .chu__goi-y { display: none; }
  .chu__tat-ca { display: block; position: fixed; left: 14px; bottom: 14px; z-index: 40; height: 48px; padding: 0 4px; font-size: 13px; font-weight: 500; color: inherit; text-decoration: underline; text-underline-offset: 4px; text-decoration-thickness: 1px; opacity: .85; }
  body:not(.v-home) .chu__tat-ca { display: none; }

  /* 29.4 bỏ hiệu ứng nặng trên điện thoại */
  .hd, .chu__nut button, .chieu__thanh, .dau__menu, .dau__mo-menu { backdrop-filter: none !important; -webkit-backdrop-filter: none !important; }
  .dau__mo-menu { background: var(--den); }
  .in { box-shadow: none; }
  .in::after { display: none; }
  .in img { filter: none; }
  .nay { transition: none; }
  .chu__cot .tam::before { display: none; }
  .chu__cot { will-change: transform; }

  /* 29.4b mặt cầu: ô nhỏ, chỉ ô giữa hiện tên; nút phụ ẩn */
  .o2 { border-radius: 2px; }
  .o2 .hd-hang { display: none; }
  .o2__chu { padding: 14px 6px 5px; font-size: 10px; opacity: 0; transition: opacity .3s; }
  .o2__chu small { font-size: 9px; }
  .o2.giua .o2__chu { opacity: 1; }
  .o2 img { filter: none; }
}
.chu__goi-y span { display: flex; align-items: center; gap: 6px; white-space: nowrap; }
/* 29.1 (sửa): gợi ý ở giữa chân trang, 1 dòng */
.chu__goi-y { left: 50%; bottom: 22px; display: flex; align-items: center; gap: 10px; transform: translate(-50%, 4px); color: #ece6da; white-space: nowrap; }
.chu__goi-y.hien { opacity: .85; transform: translate(-50%, 0); }
.chu__goi-y kbd { border-color: rgba(236, 230, 218, .45); }

/* ===== Mục 32.1: chữ hai bên phim trang chủ TO và chờm nhẹ vào mép phim (ngoại lệ luật 2, người dùng chọn) ===== */
@media (min-width: 761px) {
  .chu__ben { --chom: clamp(14px, 1.4vw, 24px); width: calc(50% - var(--w) / 2 - 24px + var(--chom)); gap: 6px; text-shadow: 0 1px 16px rgba(0, 0, 0, .6), 0 0 3px rgba(0, 0, 0, .35); }
  [data-giao-dien="sang"] .chu__ben { text-shadow: 0 1px 14px rgba(255, 255, 255, .55), 0 0 2px rgba(255, 255, 255, .4); }
  .chu__ben--trai { right: calc(50% + var(--w) / 2 - var(--chom)); }
  .chu__ben--phai { left: calc(50% + var(--w) / 2 - var(--chom)); }
  .chu__ben .js-ben-trai { font-size: clamp(22px, 1.9vw, 32px); font-weight: 600; letter-spacing: .04em; line-height: 1.1; }
  .chu__ben .js-ben-phai { font-family: var(--f-a); font-size: clamp(28px, 2.6vw, 42px); font-weight: 400; text-transform: none; letter-spacing: 0; line-height: 1.08; }
  .chu__ben .js-so-chu { font-size: 12px; }
}
@media (max-width: 760px) {
  .chu__ben .js-ben-trai { font-size: 13.5px; }
  .chu__ben .js-ben-phai { font-family: var(--f-a); font-size: 17px; text-transform: none; letter-spacing: 0; line-height: 1.15; }
}

/* Mục 32.2: trang phim chỉ còn tên phim + dòng nhãn hàng - ẩn phần giới thiệu (dữ liệu vẫn giữ) */
.du-an__gt { display: none !important; }
.tieu-su p:nth-child(4) { transition-delay: .45s; }
.tieu-su p:nth-child(5) { transition-delay: .6s; }

/* Mục 32 (sửa 10/11): tên phim bên phải dùng lại font cũ (giống nhãn hàng bên trái); chữ 2 bên dịch vào giữa thêm
   10% khoảng trống bên lề và hẹp lại, để chữ dài (vd "Nội thất The One") không sát lề màn hình */
@media (min-width: 761px) {
  .chu__ben { --le: calc(50% - var(--w) / 2); width: calc(var(--le) * .78 + var(--chom)); }
  .chu__ben--trai { right: calc(50% + var(--w) / 2 - var(--chom) - var(--le) * .1); }
  .chu__ben--phai { left: calc(50% + var(--w) / 2 - var(--chom) - var(--le) * .1); }
  .chu__ben .js-ben-phai { font-family: var(--f-chu); font-size: clamp(22px, 1.9vw, 32px); font-weight: 600; letter-spacing: .04em; line-height: 1.1; text-transform: uppercase; }
}
@media (max-width: 760px) { .chu__ben .js-ben-phai { font-family: var(--f-chu); font-size: 13.5px; text-transform: uppercase; letter-spacing: .06em; } }