/* ═══════════════════════════════════════════════════════════
   Bác sĩ Tăng Đức Cương — scrollstory (Shorthand-style)
   Nền tảng kỹ thuật học từ: BS Thủy (scrollytelling + nền đổi theo scroll),
   BS Giang (parallax 1 vòng rAF + ghim + cross-fade), Bs Trang + skill
   shorthand-magazine (scrollmation, reveal clip-path, nhịp tạp chí).
   ═══════════════════════════════════════════════════════════ */

@font-face{font-family:"Be Vietnam Pro";font-style:normal;font-weight:400;font-display:swap;src:url(../fonts/bevietnampro-400.woff2) format("woff2")}
@font-face{font-family:"Be Vietnam Pro";font-style:normal;font-weight:500;font-display:swap;src:url(../fonts/bevietnampro-500.woff2) format("woff2")}
@font-face{font-family:"Be Vietnam Pro";font-style:normal;font-weight:600;font-display:swap;src:url(../fonts/bevietnampro-600.woff2) format("woff2")}
@font-face{font-family:"Playfair Display";font-style:normal;font-weight:500;font-display:swap;src:url(../fonts/playfair-500.woff2) format("woff2")}
@font-face{font-family:"Playfair Display";font-style:italic;font-weight:500;font-display:swap;src:url(../fonts/playfair-500-italic.woff2) format("woff2")}

:root{
  --paper:#fcf8f6;
  --paper-2:#f5edea;
  --ink:#241826;
  --ink-2:#5b4a55;
  --ink-3:#9b8b94;
  --deep:#1a0f1c;
  --brand:#c2456e;
  --brand-2:#e88ba8;
  --gold:#b98a4e;
  --line:rgba(36,24,38,.13);

  --wrap:1180px;
  --gut:clamp(20px,5vw,64px);
  --sec:clamp(52px,5.6vw,92px);

  --ease:cubic-bezier(.22,.68,0,1);
  --ease-2:cubic-bezier(.65,0,.35,1);

  --f-body:"Be Vietnam Pro",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --f-disp:"Playfair Display",Georgia,"Times New Roman",serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
html:focus-within{scroll-behavior:smooth}

body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--f-body);font-size:clamp(16px,1.05vw,17.5px);
  line-height:1.74;font-weight:400;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
picture{display:contents}
a{color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.16;font-weight:600;text-wrap:balance}
p{margin:0 0 1.05em}
p:last-child{margin-bottom:0}
::selection{background:var(--brand);color:#fff}

.wrap{width:min(100% - var(--gut)*2,var(--wrap));margin-inline:auto}
section[id],header[id]{scroll-margin-top:clamp(56px,9vh,110px)}

/* ── ảnh: LQIP nằm sau, ảnh thật phủ lên khi giải mã xong ───────── */
.ph{background-size:cover;background-position:50% 50%;background-repeat:no-repeat}
.cover{width:100%;height:100%;object-fit:cover}

/* ── bàn phím ─────────────────────────────────────────────── */
.skip{position:fixed;top:8px;left:8px;z-index:100;transform:translateY(-160%);
  background:var(--brand);color:#fff;text-decoration:none;padding:.75em 1.35em;
  border-radius:4px;font-size:.85rem;font-weight:600;transition:transform .25s var(--ease)}
.skip:focus-visible{transform:none}
:focus-visible{outline:3px solid var(--brand);outline-offset:3px;border-radius:2px}
.hero :focus-visible,.seq :focus-visible,.wipe :focus-visible,.message :focus-visible,
.outro :focus-visible,.dock :focus-visible{outline-color:#fff;box-shadow:0 0 0 6px rgba(26,15,28,.5)}

/* ── kiểu chữ ─────────────────────────────────────────────── */
.h-display{font-family:var(--f-disp);font-weight:500;
  font-size:clamp(1.85rem,4.6vw,3.5rem);line-height:1.16;letter-spacing:-.015em}
.h-display--light{color:#fff}
.eyebrow,.kicker{font-size:clamp(.66rem,1.5vw,.76rem);letter-spacing:.22em;
  text-transform:uppercase;font-weight:600;color:var(--brand);margin:0 0 1.1em}
.kicker--light{color:var(--brand-2)}
.numeral{font-family:var(--f-disp);font-size:clamp(2.5rem,6vw,4.4rem);line-height:.85;
  font-weight:500;font-style:italic;color:transparent;-webkit-text-stroke:1.2px var(--brand);
  margin:0 0 .16em;opacity:.55}
.numeral--light{-webkit-text-stroke-color:var(--brand-2);opacity:.9}

/* ═════════ progress ═════════ */
.progress{position:fixed;inset:0 0 auto 0;height:3px;z-index:90;
  background:rgba(36,24,38,.06);pointer-events:none}
.progress i{display:block;height:100%;width:100%;transform:scaleX(var(--p,0));
  transform-origin:0 50%;background:linear-gradient(90deg,var(--brand),var(--brand-2) 60%,var(--gold))}

/* ═════════ dock chương ═════════ */
.dock{position:fixed;z-index:80;right:clamp(12px,2vw,26px);top:50%;transform:translateY(-50%);
  display:flex;flex-direction:column;gap:14px;opacity:0;visibility:hidden;
  transition:opacity .5s var(--ease),visibility .5s}
.dock.is-on{opacity:1;visibility:visible}
.dock a{display:block;padding:4px;position:relative}
.dock i{display:block;width:7px;height:7px;border-radius:50%;background:var(--ink);opacity:.22;
  transition:transform .4s var(--ease),opacity .4s,background .4s}
.dock a:hover i{opacity:.6}
.dock a.is-active i{opacity:1;background:var(--brand);transform:scale(1.65)}
.dock a::after{content:attr(data-label);position:absolute;right:calc(100% + 10px);top:50%;
  transform:translate(6px,-50%);white-space:nowrap;font-size:.72rem;font-weight:500;
  background:var(--ink);color:#fff;padding:4px 10px;border-radius:100px;opacity:0;
  pointer-events:none;transition:.35s var(--ease)}
.dock a:hover::after{opacity:1;transform:translate(0,-50%)}
.dock.is-light i{background:#fff}
.dock.is-light a.is-active i{background:var(--brand-2)}
@media (max-width:780px){.dock{display:none}}

/* ═════════ COVER ═════════ */
.hero{position:relative;min-height:100svh;display:flex;align-items:flex-end;
  padding:var(--gut) 0 clamp(38px,7vh,74px);overflow:clip;isolation:isolate;background:var(--deep)}
.hero__media{position:absolute;inset:-8% 0 -8%;z-index:-3;will-change:transform}
.hero__img{width:100%;height:100%;object-fit:cover;object-position:50% 40%;
  transform:scale(var(--hz,1.06));transform-origin:50% 44%}
.hero__scrim{position:absolute;inset:0;z-index:-2;
  background:
    linear-gradient(180deg,rgba(26,15,28,.6) 0%,rgba(26,15,28,.14) 30%,rgba(26,15,28,.7) 70%,rgba(26,15,28,.96) 100%),
    linear-gradient(80deg,rgba(26,15,28,.76) 0%,rgba(26,15,28,.08) 60%)}
.hero__grain{position:absolute;inset:0;z-index:-1;opacity:.3;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E")}
.hero__inner{width:min(100% - var(--gut)*2,var(--wrap));margin-inline:auto;color:#fff;position:relative;
  opacity:clamp(0,calc(1 - var(--exit,0) * 1.5),1);
  transform:translate3d(0,calc(var(--exit,0) * -70px),0)}
.hero .eyebrow{color:rgba(255,255,255,.74)}
.hero__title{font-family:var(--f-disp);font-weight:500;font-size:clamp(2.1rem,7.4vw,6.2rem);
  line-height:1.08;letter-spacing:-.025em;margin:0 0 clamp(18px,3vh,28px);max-width:20ch}
.hero__title .mask{display:block;padding-top:.42em;margin-top:-.42em}
.hero__title .mask>span{display:block}
.hero__sub-line{font-family:var(--f-disp);font-style:italic;font-weight:500;
  font-size:clamp(1.05rem,2.6vw,1.75rem);line-height:1.35;letter-spacing:-.005em;
  background:linear-gradient(96deg,#fff 30%,#f3c7d6 64%,#e8c79a 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  padding-top:.28em;margin-top:-.28em;max-width:24ch}
.js .mask>span{transform:translateY(145%);opacity:0}
.is-in .mask>span{animation:maskUp 1.15s var(--ease) forwards}
.is-in .hero__title .mask:nth-child(2)>span{animation-delay:.14s}
.is-in .hero__lead{animation-delay:.3s}
@keyframes maskUp{to{transform:translateY(0);opacity:1}}

.js .rise{opacity:0;transform:translateY(22px)}
.rise{transition:opacity .9s var(--ease),transform .9s var(--ease)}
.is-in .rise{opacity:1;transform:none}
.is-in .scrollcue{transition-delay:.55s}

.hero__lead{max-width:52ch;font-size:clamp(.95rem,1.5vw,1.1rem);line-height:1.7;
  color:rgba(255,255,255,.84);margin:0 0 clamp(28px,5vh,46px)}
.scrollcue{display:inline-flex;align-items:center;gap:14px;text-decoration:none;
  color:rgba(255,255,255,.8);font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;font-weight:500}
.scrollcue__line{display:block;width:58px;height:1px;background:rgba(255,255,255,.34);position:relative;overflow:hidden}
.scrollcue__line i{position:absolute;inset:0;background:#fff;animation:cue 2.1s var(--ease-2) infinite}
@keyframes cue{0%{transform:translateX(-100%)}55%,100%{transform:translateX(100%)}}

/* ═════════ MỞ ĐẦU ═════════ */
.lead{position:relative;z-index:2;background:var(--paper);
  margin-top:calc(-1 * clamp(20px,4vw,50px));
  border-radius:clamp(20px,3.2vw,38px) clamp(20px,3.2vw,38px) 0 0;
  padding:clamp(52px,7vw,104px) 0 clamp(34px,4vw,56px)}
.lead__text{font-family:var(--f-disp);font-size:clamp(1.2rem,2.8vw,2rem);line-height:1.5;
  font-weight:500;letter-spacing:-.01em;max-width:24em}
.lead__text .w{color:rgba(36,24,38,.16);transition:color .28s linear}
.lead__text .w.on{color:var(--ink)}
.lead__portrait{margin:clamp(34px,5vw,60px) 0 0;max-width:420px}
.lead__portrait img{width:100%;border-radius:3px;aspect-ratio:3/4;object-fit:cover;
  object-position:50% 22%;box-shadow:0 30px 64px -32px rgba(26,15,28,.5)}
.lead__portrait figcaption{margin-top:1em;font-size:.82rem;color:var(--ink-2);
  padding-left:14px;border-left:2px solid var(--brand)}
@media (min-width:900px){
  .lead__wrap{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(280px,.65fr);
    column-gap:clamp(44px,5vw,80px);align-items:end}
  .lead__portrait{margin:0;max-width:none}
}

/* ═════════ chapter shell ═════════ */
.chapter{padding:var(--sec) 0;position:relative}
.chapter--tint{background:var(--paper-2)}
.chapter--deep{background:var(--deep);color:#fff}
.chapter__head{margin-bottom:clamp(30px,3.6vw,54px);max-width:min(100%,860px)}
.prose{max-width:44em}
.prose p{font-size:clamp(1rem,1.35vw,1.1rem);color:var(--ink-2)}
.prose--light p{color:rgba(255,255,255,.8)}
.prose strong{color:var(--ink);font-weight:600}
.prose--light strong{color:#fff}
.drop::first-letter{font-family:var(--f-disp);float:left;font-size:3.9em;line-height:.82;
  padding:.06em .12em 0 0;color:var(--brand);font-weight:500}

/* ═════════ trích dẫn ═════════ */
.pull{margin:clamp(44px,6vw,84px) auto;max-width:50rem;text-align:center;padding-inline:var(--gut)}
.pull blockquote{margin:0;font-family:var(--f-disp);font-weight:500;
  font-size:clamp(1.22rem,2.7vw,1.9rem);line-height:1.42;letter-spacing:-.01em;color:var(--ink)}
.pull--note blockquote{font-size:clamp(1.15rem,2.4vw,1.6rem);color:var(--ink-2)}
.pull .mark{font-family:var(--f-disp);font-size:5rem;line-height:0;color:var(--brand);
  opacity:.4;display:block;height:2.2rem}
.pull cite{display:block;margin-top:1.5rem;font-family:var(--f-body);font-style:normal;
  font-size:.76rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-3)}

/* trích dẫn đi kèm ảnh bác sĩ — quote bên trái, ảnh bên phải */
.qpair{width:min(100% - var(--gut)*2,var(--wrap));margin:clamp(44px,6vw,84px) auto;
  display:grid;gap:clamp(30px,4.5vw,64px);align-items:center}
@media (min-width:900px){.qpair{grid-template-columns:1.42fr .82fr}}
.pull--left{margin:0;padding-inline:0;max-width:none;text-align:left}
.pull--left blockquote{font-size:clamp(1.12rem,2.05vw,1.55rem);line-height:1.5}
.pull--left .mark{height:1.9rem;font-size:4rem}
.pull--left cite{margin-top:1.2rem}
.qpair__fig{margin:0}
.qpair__fig img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:3px;
  box-shadow:0 30px 66px -34px rgba(26,15,28,.5)}
.qpair__fig figcaption{margin-top:.9em;font-size:.8rem;line-height:1.6;color:var(--ink-3)}
@media (max-width:899px){
  .qpair__fig{max-width:460px}
}

/* ═════════ số liệu ═════════ */
.stats{list-style:none;margin:clamp(40px,5vw,64px) 0;padding:0;display:grid;gap:1px;
  background:var(--line);border-block:1px solid var(--line);
  grid-template-columns:repeat(3,1fr)}
.stats li{background:var(--paper);padding:clamp(20px,2.6vw,32px) clamp(14px,2vw,26px);text-align:center}
.chapter--tint .stats li{background:var(--paper-2)}
.stats b{display:block;font-family:var(--f-disp);font-weight:500;
  font-size:clamp(1.9rem,4.4vw,3rem);line-height:1;color:var(--brand);letter-spacing:-.02em;margin-bottom:.36em}
.stats b i{font-style:normal;font-size:.42em;vertical-align:super;letter-spacing:0;margin-left:.12em}
.stats li>span{display:block;font-size:.8rem;color:var(--ink-2);line-height:1.5}
@media (max-width:560px){.stats{grid-template-columns:1fr}}

/* ═════════ ảnh ═════════ */
.fig{margin:clamp(40px,5vw,72px) 0 0;position:relative}
.fig__img{width:100%;border-radius:3px;box-shadow:0 30px 66px -34px rgba(26,15,28,.5);
  transition:transform 1.3s var(--ease)}
.fig:hover .fig__img{transform:scale(1.012)}
.fig figcaption{margin-top:.95em;font-size:.8rem;line-height:1.6;color:var(--ink-3);max-width:64ch}
.fig--bleed{width:100%;max-width:none;margin:clamp(44px,6vw,80px) 0 0;padding:0}
.fig--bleed .fig__img{border-radius:0;box-shadow:none;aspect-ratio:3/2;object-fit:cover}
.fig--bleed figcaption{width:min(100% - var(--gut)*2,var(--wrap));margin:.95em auto 0;padding-inline:0}
.chapter--deep .fig figcaption{color:rgba(255,255,255,.5)}
.fig--wide .fig__img{aspect-ratio:16/9;object-fit:cover}
.fig--portrait{max-width:640px;margin-inline:auto}
.fig--portrait .fig__img{aspect-ratio:4/5;object-fit:cover;object-position:50% 24%}

/* ═════════ SCROLLMATION — ảnh ghim, chữ cuộn qua ═════════ */
.sm{position:relative;margin:clamp(40px,5vw,64px) 0}
.sm__inner{width:min(100% - var(--gut)*2,1280px);margin-inline:auto;
  display:grid;gap:0;grid-template-columns:1fr}
.sm__media{position:sticky;top:0;height:100svh;z-index:0;grid-area:1/1}
.sm__stage{position:absolute;inset:0;overflow:hidden}
.sm__frame{position:absolute;inset:0;margin:0;opacity:0;
  transition:opacity .9s var(--ease-2),transform 1.4s var(--ease);transform:scale(1.05)}
.sm__frame.is-on{opacity:1;transform:scale(1)}
.sm__frame img{width:100%;height:100%;object-fit:cover}
.sm__frame::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(26,15,28,.58),rgba(26,15,28,.34) 44%,rgba(26,15,28,.66))}
.sm__steps{grid-area:1/1;position:relative;z-index:1;display:grid}
.sm__step{min-height:100svh;display:grid;align-content:center;justify-items:center;
  text-align:center;padding:clamp(24px,6vw,48px) var(--gut)}
.sm__card{max-width:34ch;padding:clamp(22px,3.4vw,34px);border-radius:4px;
  background:rgba(252,248,246,.94);backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:0 40px 90px -40px rgba(2,14,22,.7);
  opacity:.34;transform:translateY(16px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.sm__step.is-on .sm__card{opacity:1;transform:none}
.sm__no{display:block;font-family:var(--f-disp);font-style:italic;font-size:1.05rem;
  color:var(--brand);margin-bottom:.55em}
.sm__card h3{font-family:var(--f-disp);font-weight:500;font-size:clamp(1.2rem,2.4vw,1.7rem);
  line-height:1.25;margin-bottom:.55em}
.sm__card p{font-size:clamp(.9rem,1.35vw,1rem);line-height:1.65;color:var(--ink-2);margin:0}
@media (min-width:900px){
  .sm__inner{grid-template-columns:1.06fr .94fr;gap:clamp(40px,5vw,84px);align-items:start}
  .sm__media{grid-area:auto}
  .sm__stage{position:sticky;top:0;display:grid;place-items:center;height:100svh;padding:clamp(24px,4vw,56px) 0}
  .sm__frame{inset:clamp(24px,4vw,56px) 0}
  .sm__frame img{border-radius:4px;box-shadow:0 34px 74px -34px rgba(26,15,28,.6)}
  .sm__frame::after{background:none}
  .sm__steps{grid-area:auto}
  .sm__step{justify-items:start;text-align:left;padding:0}
  .sm__card{background:none;backdrop-filter:none;-webkit-backdrop-filter:none;box-shadow:none;padding:0}
  .sm__card h3{font-size:clamp(1.6rem,3vw,2.3rem)}
  .sm__card p{max-width:36ch}
  .sm__step:last-child{min-height:78svh}
  .sm__steps::after{content:"";display:block;height:20svh}
}

/* ═════════ REVEAL — ảnh sau quét đè lên ảnh trước (clip-path) ═════════ */
.wipe{position:relative;margin:clamp(44px,6vw,80px) 0 0;height:100svh}
.wipe__sticky{position:sticky;top:0;height:100svh;overflow:hidden;background:var(--deep)}
.wipe__stage{position:absolute;inset:0}
.wipe__img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  object-position:50% 42%;will-change:clip-path}
/* Máy hẹp: ảnh vuông/dọc hiện TRỌN khung (contain) — cover trên khung dọc sẽ
   cắt mất người ở hai bên. Nền phía sau chính là LQIP của ảnh (background-size:
   cover) nên phần thừa trên/dưới là ảnh mờ chứ không phải một dải màu phẳng. */
@media (max-width:900px){
  /* background-blend-mode chỉ tối nền mờ (LQIP), không đụng tới ảnh nét */
  .wipe__img--tall{
    object-fit:contain;object-position:50% 50%;
    background-color:rgba(20,11,22,.78);background-blend-mode:multiply;
  }
}
.js .wipe__img:not([data-wipe="0"]){clip-path:inset(0 0 0 100%)}
/* không có JS thì chỉ hiện khung đầu, không chồng 3 ảnh lên nhau */
html:not(.js) .wipe__img:not([data-wipe="0"]){display:none}
.wipe__caps{position:absolute;left:0;right:0;bottom:clamp(34px,9vh,96px);z-index:2;
  width:min(100% - var(--gut)*2,var(--wrap));margin-inline:auto;height:4em}
.wipe__cap{position:absolute;left:0;bottom:0;margin:0;max-width:58ch;
  font-family:var(--f-disp);font-style:italic;font-size:clamp(1rem,1.9vw,1.25rem);
  line-height:1.5;color:#fff;opacity:0;transform:translateY(10px);
  transition:opacity .7s var(--ease),transform .7s var(--ease);
  text-shadow:0 1px 14px rgba(0,0,0,.7);
  padding:.6em 2.4em .6em 1.1em;border-left:3px solid var(--brand-2);border-radius:0 2px 2px 0;
  background:linear-gradient(90deg,rgba(20,11,22,.82),rgba(20,11,22,.5) 58%,rgba(20,11,22,0))}
.wipe__cap.is-on{opacity:1;transform:none}
.wipe::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(26,15,28,.42) 0%,rgba(26,15,28,0) 16%,rgba(26,15,28,0) 66%,rgba(26,15,28,.62) 100%)}

/* ═════════ SEQ — cross-fade ghim ═════════ */
.seq{position:relative;margin-top:clamp(34px,4vw,56px)}
.seq__sticky{position:sticky;top:0;height:100svh;overflow:hidden;display:flex;align-items:flex-end}
.seq__stage{position:absolute;inset:0;background:var(--deep)}
.seq__slide{position:absolute;inset:0;opacity:0;transform:scale(1.06);
  transition:opacity 1s var(--ease-2),transform 1.6s var(--ease)}
.seq__slide.is-on{opacity:1;transform:scale(1)}
.seq__veil{position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(26,15,28,.5) 0%,rgba(26,15,28,.16) 30%,rgba(26,15,28,.88) 100%)}
.seq__cards{position:relative;width:min(100% - var(--gut)*2,var(--wrap));margin:0 auto clamp(30px,6vh,60px);
  display:grid;gap:12px;grid-template-columns:1fr}
.seq__card{padding:clamp(14px,1.7vw,22px);border-radius:3px;background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.17);backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);color:#fff;
  transition:opacity .7s var(--ease),transform .7s var(--ease),background .7s,border-color .7s}
.js .seq__card{opacity:.32;transform:translateY(16px)}
.seq__card.is-on{opacity:1;transform:none;background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.42)}
.seq__card span{display:block;font-family:var(--f-disp);font-style:italic;font-size:1rem;
  color:var(--brand-2);margin-bottom:.6em}
.seq__card h3{font-size:clamp(.95rem,1.25vw,1.05rem);font-weight:600;line-height:1.35;margin-bottom:.5em}
.seq__card p{font-size:clamp(.78rem,1vw,.88rem);line-height:1.6;color:rgba(255,255,255,.8);margin:0}
.seq__steps{position:relative}
.seq__step{height:62svh}
@media (min-width:820px){
  .seq__cards{grid-template-columns:repeat(3,1fr);gap:18px}
  .seq__step{height:70svh}
}

/* ═════════ THÔNG ĐIỆP ═════════ */
.message{position:relative;isolation:isolate;overflow:clip;
  padding:calc(var(--sec)*1.15) 0;color:#fff;background:var(--deep)}
.message__bg{position:absolute;inset:-10% 0;z-index:-2;will-change:transform}
.message__bg img{width:100%;height:100%;object-fit:cover;object-position:50% 24%}
.message__scrim{position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(26,15,28,.9),rgba(26,15,28,.78) 42%,rgba(26,15,28,.92))}
.message__inner{max-width:min(100% - var(--gut)*2,860px)}
.message__quote{margin:0 0 clamp(34px,5vw,58px)}
.message__quote blockquote{margin:0;font-family:var(--f-disp);font-weight:500;
  font-size:clamp(1.4rem,3.6vw,2.6rem);line-height:1.4;letter-spacing:-.012em;
  padding-left:clamp(18px,2.4vw,34px);border-left:2px solid var(--brand-2)}
.message__quote .w{color:rgba(255,255,255,.2);transition:color .28s linear}
.message__quote .w.on{color:#fff}
.message__quote cite{display:block;margin-top:1.5rem;font-style:normal;font-size:.76rem;
  font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:rgba(255,255,255,.6);
  padding-left:clamp(18px,2.4vw,34px)}
.message__note{font-size:clamp(1rem,1.4vw,1.12rem);max-width:58ch;color:rgba(255,255,255,.78)}

/* ═════════ OUTRO ═════════ */
.outro{position:relative;isolation:isolate;overflow:clip;color:#fff;
  padding:calc(var(--sec)*1.05) 0;text-align:center;background:var(--deep)}
.outro__bg{position:absolute;inset:0;z-index:-2}
.outro__bg img{width:100%;height:100%;object-fit:cover;object-position:50% 34%;filter:saturate(.85)}
.outro__scrim{position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(120% 78% at 50% 44%,rgba(26,15,28,.88) 0%,rgba(26,15,28,.7) 58%,rgba(26,15,28,.58) 100%),
    linear-gradient(180deg,rgba(26,15,28,.5),rgba(26,15,28,0) 30%,rgba(26,15,28,.55))}
.js .outro__inner>*{opacity:0;transform:translateY(24px)}
.outro__inner>*{transition:opacity .9s var(--ease),transform .9s var(--ease)}
.outro__inner.is-in>*{opacity:1;transform:none}
.outro__avatar{margin:0 auto 1.6em;width:112px;height:112px;border-radius:50%;overflow:hidden;
  border:2px solid rgba(255,255,255,.3)}
.outro__avatar img{width:100%;height:100%;object-fit:cover;object-position:50% 16%}
.outro h2{font-family:var(--f-disp);font-weight:500;font-size:clamp(1.7rem,4.4vw,3rem);margin-bottom:.5em}
.outro p{color:rgba(255,255,255,.74);font-size:.98rem}
.outro__actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin:2.2em 0 1.6em}
.btn{display:inline-flex;align-items:center;gap:8px;text-decoration:none;padding:.86em 1.75em;
  border-radius:100px;font-size:.84rem;font-weight:600;letter-spacing:.08em;
  border:1px solid rgba(255,255,255,.34);color:#fff;transition:.4s var(--ease)}
.btn:hover{background:rgba(255,255,255,.12);border-color:#fff;transform:translateY(-2px)}
.btn--solid{background:var(--brand);border-color:var(--brand)}
.btn--solid:hover{background:#a83a5f;border-color:#a83a5f}
.outro__addr{font-size:.82rem;color:rgba(255,255,255,.5)}

/* ═════════ footer ═════════ */
.foot{padding:clamp(26px,4vw,42px) 0;background:#120a14;color:rgba(255,255,255,.44);font-size:.78rem}
.foot .wrap{display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center}
.foot p{margin:0}
.foot__top{text-decoration:none;transition:color .3s}
.foot__top:hover{color:#fff}

/* ═════════ reveal dùng chung ═════════ */
.js [data-reveal]{opacity:0;transform:translateY(28px)}
[data-reveal]{transition:opacity .95s var(--ease),transform .95s var(--ease)}
[data-reveal].is-in{opacity:1;transform:none}
.js [data-stagger]>*{opacity:0;transform:translateY(26px)}
[data-stagger]>*{transition:opacity .9s var(--ease),transform .9s var(--ease)}
[data-stagger].is-in>*{opacity:1;transform:none}
[data-stagger].is-in>*:nth-child(1){transition-delay:0s}
[data-stagger].is-in>*:nth-child(2){transition-delay:.09s}
[data-stagger].is-in>*:nth-child(3){transition-delay:.18s}
[data-stagger].is-in>*:nth-child(4){transition-delay:.27s}
[data-stagger].is-in>*:nth-child(5){transition-delay:.36s}

/* ═════════ lightbox ═════════ */
.lb{position:fixed;inset:0;z-index:110;display:grid;place-items:center;
  padding:clamp(1rem,4vw,3rem);background:rgba(12,7,14,.94);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  opacity:0;transition:opacity .32s ease}
.lb[hidden]{display:none}
.lb.is-open{opacity:1}
.lb figure{margin:0;display:flex;flex-direction:column;align-items:center;gap:1rem;max-width:100%}
.lb img{max-width:min(94vw,1200px);max-height:80svh;width:auto;height:auto;object-fit:contain;
  border-radius:10px;box-shadow:0 30px 90px rgba(0,0,0,.7);transform:scale(.97);
  transition:transform .4s var(--ease)}
.lb.is-open img{transform:scale(1)}
.lb figcaption{font-family:var(--f-disp);font-style:italic;font-size:.88rem;line-height:1.6;
  color:#eee;text-align:center;max-width:60ch}
.lb__close{position:absolute;top:clamp(.75rem,2.5vw,1.5rem);right:clamp(.75rem,2.5vw,1.5rem);
  width:2.75rem;height:2.75rem;border-radius:50%;cursor:pointer;border:1px solid rgba(255,255,255,.3);
  background:rgba(255,255,255,.08);color:#fff;font-size:1.5rem;line-height:1;display:grid;
  place-items:center;transition:background .25s,transform .25s}
.lb__close:hover{background:rgba(255,255,255,.18);transform:rotate(90deg)}
img.zoomable{cursor:zoom-in}

/* ═════════ reduced motion ═════════ */
@media (prefers-reduced-motion:reduce){
  html:focus-within{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;
    transition-duration:.01ms!important;scroll-behavior:auto!important}
  .js .mask>span,.js .rise,.js [data-reveal],.js [data-stagger]>*{opacity:1;transform:none}
  .hero__inner{opacity:1;transform:none}
  .hero__media,.message__bg{transform:none!important}
  .sm{height:auto}
  .sm__media{position:static;height:auto}
  .sm__stage{position:relative;height:auto;display:grid;gap:16px;padding:0}
  .sm__frame{position:relative;inset:auto;opacity:1;transform:none;height:auto}
  .sm__frame::after{display:none}
  .sm__frame img{aspect-ratio:4/3}
  .sm__step{min-height:0;padding:clamp(20px,4vw,34px) var(--gut)}
  .sm__card,.sm__step .sm__card{opacity:1;transform:none;background:var(--paper-2);
    backdrop-filter:none;-webkit-backdrop-filter:none;box-shadow:none}
  .sm__step:last-child{min-height:0}
  .sm__steps::after{display:none}
  .wipe{height:auto}
  .wipe__sticky{position:static;height:auto;overflow:visible}
  .wipe__stage{position:relative;display:grid;gap:16px}
  .wipe__img{position:relative;inset:auto;clip-path:none!important;aspect-ratio:3/2}
  .wipe__caps{position:static;height:auto;margin-top:16px}
  .wipe__cap{position:relative;opacity:1;transform:none;color:var(--ink);text-shadow:none;
    border-color:var(--brand);background:none;padding:.2em 0 .2em 1.1em}
  .wipe::after{display:none}
  .seq__sticky{position:static;height:auto;display:block}
  .seq__stage{position:relative;height:56svh}
  .seq__slide{transform:none}
  .seq__cards{margin:16px auto 0;width:min(100% - var(--gut)*2,var(--wrap));padding:0}
  .seq__card,.js .seq__card{opacity:1;transform:none;background:rgba(255,255,255,.1)}
  .seq__card p{display:block}
  .seq__steps{display:none}
  .lead__text .w,.message__quote .w{color:inherit}
}

/* ═════════ máy hẹp ═════════ */
@media (max-width:900px){
  .h-display br,.hero__title br{display:none}
}
@media (max-width:640px){
  .hero{min-height:92svh}
  .hero__title{max-width:none}
  .hero__sub-line{max-width:none}
  .seq__card p{display:none}
  .seq__card.is-on p{display:block}
  .fig--portrait .fig__img{aspect-ratio:3/4}
}