:root{
  --ink:#071626;          /* navy đêm — nền chung cả tuyến bài */
  --deep:#0b2236;         /* navy thẳm */
  --pine:#0f3151;         /* navy trung */
  --aqua:#5db9f0;         /* xanh giọt nước — màu phụ ở bài này */
  --aqua-dim:#2f6f9e;
  --foam:#f2f7fb;         /* trắng sương */
  --mist:#9db8cd;
  --brass:#f2a63c;        /* vàng đồng — màu dẫn của Bài 1 (lãnh đạo, phát biểu) */
  --brass-dim:#c97f1f;
  --brass-light:#ffd98a;
  --leaf:#8ac43f;         /* xanh lá — dành cho các bài khác trong tuyến */
  --serif:'Space Grotesk','Be Vietnam Pro',sans-serif;
  --sans:'Be Vietnam Pro',sans-serif;
  --mono:'IBM Plex Mono',monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans);
  background:var(--ink);
  color:var(--foam);
  overflow-x:hidden;
  line-height:1.8;
}
::selection{background:var(--brass);color:var(--ink)}

/* ---------- PROGRESS BAR ---------- */
#progress{
  position:fixed;top:0;left:0;height:3px;width:0;
  background:linear-gradient(90deg,var(--brass),var(--aqua));
  z-index:100;transition:width .1s linear;
}

/* ---------- CHAPTER NAV ---------- */
#chapnav{
  position:fixed;top:0;left:0;right:0;z-index:90;
  display:flex;justify-content:center;gap:clamp(10px,3vw,38px);
  padding:14px 16px;
  background:rgba(7,22,38,.82);backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(242,247,251,.08);
  transform:translateY(-100%);transition:transform .5s ease;
}
#chapnav.show{transform:none}
#chapnav a{
  font-family:var(--mono);font-size:.6rem;letter-spacing:.22em;text-transform:uppercase;
  color:rgba(255,255,255,0.85);text-decoration:none;transition:all .3s ease;white-space:nowrap;
  padding:10px 4px;
}
#chapnav a:hover,#chapnav a.active{color:var(--brass-light);text-shadow:0 0 10px rgba(242,166,60,0.5)}

/* ---------- PLACEHOLDER ẢNH ---------- */
.ph{
  position:relative;width:100%;aspect-ratio:16/9;overflow:hidden;border-radius:6px;
  border:1.5px dashed rgba(242,166,60,.38);
  background:
    radial-gradient(circle at 70% 20%,rgba(242,166,60,.14),transparent 45%),
    radial-gradient(circle at 15% 85%,rgba(93,185,240,.1),transparent 50%),
    linear-gradient(155deg,#0d2b45,#06121f 75%);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
}
.ph--tall{aspect-ratio:4/5}
.ph--wide{aspect-ratio:21/9}
.ph .ico{
  width:44px;height:44px;border:1px solid rgba(242,166,60,.45);border-radius:50%;
  display:flex;align-items:center;justify-content:center;color:var(--brass);flex-shrink:0;
}
.ph .ico svg{width:20px;height:20px}
.ph .lbl{
  font-family:var(--mono);font-size:.62rem;letter-spacing:.2em;text-transform:uppercase;
  color:var(--brass);text-align:center;max-width:82%;line-height:1.9;
}
.ph img,.ph video,.ph iframe{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;border:0;
}
.ph:has(img),.ph:has(video),.ph:has(iframe){border-style:solid;border-color:rgba(242,166,60,.18)}
.ph:has(img) .ico,.ph:has(img) .lbl,
.ph:has(video) .ico,.ph:has(video) .lbl,
.ph:has(iframe) .ico,.ph:has(iframe) .lbl{display:none}
figure{margin:0}
figcaption{
  font-family:var(--sans);font-size:.78rem;font-weight:400;letter-spacing:.02em;
  color:rgba(157,184,205,.85);margin-top:7px;line-height:1.5;font-style:italic;
}
.media-grid{display:grid;gap:22px;margin-top:54px}
.media-grid.cols-2{grid-template-columns:1fr 1fr}

/* ---------- HERO ---------- */
#hero{
  position:relative;min-height:100vh;
  display:flex;align-items:flex-end;
  overflow:hidden;padding:0 0 4vh;
}
.hero-bg{position:absolute;inset:0}
.hero-bg .ph{
  position:absolute;inset:0;width:100%;height:100%;aspect-ratio:auto;border:0;border-radius:0;
  justify-content:flex-start;padding-top:9vh;
}
.hero-bg .ph img{filter:brightness(.5) saturate(.9)}
.hero-veil{
  position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(7,22,38,.55) 0%,rgba(7,22,38,.3) 38%,rgba(7,22,38,.92) 84%,var(--ink) 100%);
}
.hero-content{
  position:relative;z-index:3;max-width:1120px;margin:0 auto;padding:0 24px;width:100%;
}
.hero-logo{
  display:block;height:clamp(92px,13vw,150px);width:auto;margin-bottom:34px;
  filter:drop-shadow(0 6px 24px rgba(0,0,0,.5)) drop-shadow(0 0 36px rgba(93,185,240,.4));
}
#chapnav .nav-logo{
  position:absolute;left:clamp(14px,2vw,28px);top:50%;transform:translateY(-50%);
  height:35px;width:auto;
}
@media (max-width:700px){#chapnav .nav-logo{display:none}}
.footer-logo{height:70px;width:auto;align-self:flex-start;margin-bottom:14px;opacity:.95}
.hero-eyebrow{
  font-family:var(--mono);font-size:.68rem;letter-spacing:.4em;text-transform:uppercase;
  color:var(--brass-light);margin-bottom:18px;display:flex;align-items:center;gap:14px;
}
.hero-eyebrow::before{content:"";width:44px;height:1px;background:var(--brass-light);opacity:.7}
h1{
  font-family:var(--serif);font-weight:700;letter-spacing:-.015em;
  font-size:clamp(2rem,5.2vw,4.1rem);
  line-height:1.16;margin:0;max-width:940px;text-wrap:balance;
  text-shadow:0 8px 60px rgba(0,0,0,.55);
}
.hero-person{
  display:block;margin-top:28px;
}
.hero-person .name{
  font-family:var(--serif);font-weight:600;font-size:clamp(1.2rem,2.4vw,1.7rem);color:var(--foam);
}
.hero-person .name b{color:var(--brass);font-weight:700}
.hero-person .role{
  font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--mist);margin-top:8px;
}
.scroll-cue{
  position:absolute;bottom:34px;right:clamp(24px,5vw,64px);
  z-index:3;display:flex;flex-direction:column;align-items:center;gap:10px;
  color:var(--mist);font-family:var(--mono);font-size:.6rem;letter-spacing:.35em;
  text-transform:uppercase;writing-mode:vertical-rl;
}
.scroll-cue .line{width:1px;height:52px;background:linear-gradient(var(--brass),transparent);
  animation:drip 2.2s ease-in-out infinite}
@keyframes drip{0%{transform:scaleY(0);transform-origin:top}55%{transform:scaleY(1);transform-origin:top}56%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* ---------- SAPO ---------- */
#sapo{padding:clamp(20px,3vw,40px) 24px 8px}
.sapo-inner{max-width:820px;margin:0 auto}
.sapo-inner p{
  font-family:var(--serif);font-size:clamp(1.15rem,2.2vw,1.5rem);
  line-height:1.75;font-weight:500;color:var(--foam);
}
.sapo-inner p::first-letter{
  font-size:3.2em;float:left;line-height:.82;padding:6px 14px 0 0;
  color:var(--brass);font-weight:700;
}

/* ---------- VIDEO FEATURE ---------- */
.video-feature{max-width:1240px;margin:70px auto 0;padding:0 24px}
.video-shell{position:relative;border-radius:12px}
.video-shell::before{
  content:"";position:absolute;inset:-2px;border-radius:14px;z-index:0;
  background:linear-gradient(120deg,var(--brass),rgba(242,166,60,.15) 35%,rgba(93,185,240,.15) 65%,var(--aqua));
}
.video-frame{
  position:relative;z-index:1;aspect-ratio:16/9;border-radius:12px;overflow:hidden;
  background:var(--deep);
}
.video-frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.video-feature figcaption{
  font-family:var(--sans);font-size:.78rem;font-weight:400;letter-spacing:.02em;
  color:rgba(157,184,205,.85);margin-top:12px;line-height:1.5;font-style:italic;text-align:center;
}

/* ---------- INTERVIEW GALLERY (khung ngắm hiện đại) ---------- */
.interview-gallery{
  max-width:1120px;margin:26px auto 0;padding:0 24px;
  display:grid;grid-template-columns:2fr 1fr;gap:18px;
}
.ig-item{
  position:relative;overflow:hidden;border-radius:8px;background:var(--deep);
  border:1px solid rgba(242,166,60,.16);
}
.ig-item img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;
  transition:transform .9s cubic-bezier(.19,1,.22,1),filter .9s ease;
  filter:saturate(.92);
}
.ig-item:hover img{transform:scale(1.055);filter:saturate(1.05)}
.ig-item::before,.ig-item::after{
  content:"";position:absolute;width:26px;height:26px;z-index:2;pointer-events:none;
  transition:width .4s ease,height .4s ease;
}
.ig-item::before{top:12px;left:12px;border-top:2px solid var(--brass);border-left:2px solid var(--brass)}
.ig-item::after{bottom:12px;right:12px;border-bottom:2px solid var(--brass);border-right:2px solid var(--brass)}
.ig-item:hover::before,.ig-item:hover::after{width:38px;height:38px}
.ig-tag{
  position:absolute;left:0;right:0;bottom:0;z-index:1;
  padding:38px 18px 14px;
  background:linear-gradient(180deg,transparent,rgba(7,22,38,.88));
  font-family:var(--mono);font-size:.6rem;letter-spacing:.22em;text-transform:uppercase;
  color:var(--brass-light);
}
.ig-main{aspect-ratio:3/2}
.ig-side{aspect-ratio:auto}
.ig-side img{object-position:78% center}
@media (max-width:900px){
  .interview-gallery{grid-template-columns:1fr}
  .ig-main,.ig-side{aspect-ratio:3/2}
}

/* ---------- SHARED ---------- */
.section{position:relative;padding:clamp(72px,9vw,130px) 24px;scroll-margin-top:52px}
.wrap{max-width:1120px;margin:0 auto}
.narrow{max-width:820px;margin:0 auto}
.eyebrow{
  font-family:var(--mono);font-size:.7rem;letter-spacing:.4em;text-transform:uppercase;
  color:var(--brass);margin-bottom:22px;display:flex;align-items:center;gap:14px;
}
.eyebrow::before{content:"";width:44px;height:1px;background:var(--brass);opacity:.6}
h2{
  font-family:var(--serif);font-weight:700;letter-spacing:-.015em;
  font-size:clamp(1.6rem,3.6vw,2.7rem);line-height:1.18;max-width:820px;
  margin-bottom:34px;text-wrap:balance;
}
.article p{
  color:#cfe0d6;font-weight:300;margin-bottom:1.5em;
  font-size:clamp(1rem,1.4vw,1.08rem);
}
.article p strong{color:var(--foam);font-weight:600}

/* ---------- HIỆU ỨNG CHUYỂN ĐỘNG ẢNH (phong cách Shorthand) ----------
   clip đặt trên phần tử CON: nếu clip kín phần tử được IntersectionObserver
   quan sát thì vùng giao cắt = 0 và hiệu ứng không bao giờ kích hoạt */
.reveal-wipe>*{clip-path:inset(0 100% 0 0);transition:clip-path 1.15s cubic-bezier(.65,0,.2,1);transition-delay:inherit}
.reveal-wipe.wipe-right>*{clip-path:inset(0 0 0 100%)}
.reveal-wipe.in>*{clip-path:inset(0 0 0 0)}
.ig-item.reveal-wipe>img{
  transition:transform .9s cubic-bezier(.19,1,.22,1),filter .9s ease,clip-path 1.15s cubic-bezier(.65,0,.2,1);
  transition-delay:inherit;
}
[data-parallax]{overflow:hidden}
[data-parallax] img{transform:translateY(var(--py,0)) scale(1.14);will-change:transform}
.hero-bg .ph img{transform:scale(var(--hz,1));transform-origin:50% 30%;will-change:transform}

/* ---------- REVEAL ---------- */
.reveal{opacity:0;transform:translateY(36px);filter:blur(10px);
  transition:opacity .9s ease,transform .9s cubic-bezier(.19,1,.22,1),filter .9s ease}
.reveal.in{opacity:1;transform:none;filter:none}
.reveal-left{opacity:0;transform:translateX(-46px);filter:blur(10px);
  transition:opacity .9s ease,transform .9s cubic-bezier(.19,1,.22,1),filter .9s ease}
.reveal-left.in{opacity:1;transform:none;filter:none}

/* ---------- HỎI - ĐÁP ---------- */
.qa{margin:44px 0 26px}
.qa-role{
  font-family:var(--mono);font-size:.62rem;letter-spacing:.3em;text-transform:uppercase;
  color:var(--aqua);margin-bottom:10px;display:flex;align-items:center;gap:10px;
}
.qa-role::before{content:"";width:18px;height:1px;background:var(--aqua);opacity:.7}
.qa-q{
  font-family:var(--serif);font-weight:500;font-style:italic;
  font-size:clamp(1.05rem,1.9vw,1.32rem);color:var(--mist);line-height:1.55;
}

/* ---------- QUOTE ---------- */
blockquote.big-quote{
  position:relative;margin:56px auto;max-width:860px;
  padding:clamp(30px,4vw,52px) clamp(24px,4vw,56px);
  border:1px solid rgba(242,166,60,.22);border-left:3px solid var(--brass);
  background:linear-gradient(150deg,rgba(15,49,81,.42),rgba(7,22,38,.2));
  border-radius:4px;
}
blockquote.big-quote::before{
  content:"\201C";position:absolute;top:-6px;left:22px;
  font-family:var(--serif);font-size:5.6rem;line-height:1;color:var(--brass);opacity:.85;
}
blockquote.big-quote p{
  font-family:var(--serif);font-weight:500;
  font-size:clamp(1.1rem,2vw,1.42rem);line-height:1.65;color:var(--foam);
  margin:0;
}
blockquote.big-quote cite{
  display:block;margin-top:26px;font-style:normal;
  font-family:var(--mono);font-size:.66rem;letter-spacing:.22em;text-transform:uppercase;
  color:var(--aqua);line-height:2;
}
blockquote.big-quote cite b{color:var(--brass);font-weight:500}
.pull-quote{
  border-left:2px solid var(--brass);padding:8px 0 8px 28px;margin:44px 0;
  font-family:var(--serif);font-weight:500;font-size:clamp(1.15rem,2vw,1.4rem);
  line-height:1.6;color:var(--foam);
}
.lead-quote{
  max-width:760px;margin:44px auto 60px;text-align:center;
  font-family:var(--serif);font-weight:500;
  font-size:clamp(1.2rem,2.2vw,1.62rem);line-height:1.6;color:var(--foam);
}
.lead-quote::after{
  content:"";display:block;width:52px;height:2px;margin:26px auto 0;
  background:linear-gradient(90deg,var(--brass),var(--aqua));
}

/* ---------- LIGHTBOX ---------- */
#lightbox{
  position:fixed;inset:0;z-index:200;display:none;
  flex-direction:column;align-items:center;justify-content:center;gap:16px;
  background:rgba(4,11,20,.93);padding:4vh 4vw;cursor:zoom-out;
}
#lightbox.open{display:flex}
#lightbox img{max-width:100%;max-height:84vh;object-fit:contain;border-radius:6px}
#lightbox .cap{color:var(--mist);font-size:.95rem;text-align:center;max-width:720px}
.ph img,.ig-item img{cursor:zoom-in}
.hero-bg .ph img,.scrolly-media img{cursor:default}

/* ---------- NÚT VỀ ĐẦU TRANG ---------- */
#toTop{
  position:fixed;right:22px;bottom:22px;z-index:95;
  width:46px;height:46px;border-radius:50%;
  border:1px solid rgba(242,166,60,.4);background:rgba(7,22,38,.85);
  color:var(--brass);font-size:1.15rem;line-height:1;cursor:pointer;
  opacity:0;pointer-events:none;transition:opacity .4s ease,transform .3s ease;
}
#toTop.show{opacity:1;pointer-events:auto}
#toTop:hover{transform:translateY(-3px);border-color:var(--brass)}

/* ---------- BOX SỐ LIỆU ---------- */
.stat-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:rgba(242,247,251,.12);border:1px solid rgba(242,247,251,.12);
  margin:56px 0;
}
.stat-grid.cols-3{grid-template-columns:repeat(3,1fr)}
.stat{background:rgba(11,34,54,.85);padding:40px 28px}
.stat .num{
  font-family:var(--serif);font-weight:700;
  font-size:clamp(2rem,4vw,3.1rem);color:var(--brass);line-height:1.05;
}
.stat .num .unit{font-size:.42em;color:var(--aqua);font-weight:500;margin-left:4px}
.stat .lbl{margin-top:14px;color:var(--mist);font-size:.86rem;font-weight:300;line-height:1.6}

/* ---------- BA TỪ KHÓA ---------- */
.keyword-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin:50px 0}
.keyword-card{
  background:linear-gradient(150deg,rgba(15,49,81,.42),rgba(7,22,38,.2));
  border:1px solid rgba(242,166,60,.2);border-top:3px solid var(--brass);
  border-radius:0 0 6px 6px;padding:clamp(26px,3vw,34px) clamp(22px,3vw,28px);
}
.keyword-card .kw{
  font-family:var(--serif);font-weight:700;font-size:1.5rem;color:var(--brass);margin-bottom:14px;
}
.keyword-card p{color:#cfe0d6;font-weight:300;font-size:.95rem;line-height:1.75;margin:0}

/* ---------- SCROLLMATION (phong cách Shorthand) ---------- */
.scrolly{position:relative;margin:70px calc(50% - 50vw) 0;width:100vw}
.scrolly-media{position:sticky;top:0;height:100vh;overflow:hidden}
.scrolly-media img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  opacity:0;transform:scale(1.07);
  transition:opacity 1s ease,transform 7s linear;
}
.scrolly-media img.on{opacity:1;transform:scale(1)}
.scrolly-veil{
  position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(7,22,38,.55),rgba(7,22,38,.12) 38%,rgba(7,22,38,.55) 88%);
}
.scrolly-steps{position:relative;z-index:2;margin-top:-100vh}
.step{min-height:100vh;display:flex;align-items:center;padding:0 clamp(20px,6vw,80px)}
.step:nth-child(even){justify-content:flex-end}
.step-card{
  max-width:440px;padding:30px 34px;border-radius:10px;
  background:rgba(7,22,38,.74);backdrop-filter:blur(14px);
  border:1px solid rgba(242,166,60,.24);
  opacity:.25;transform:translateY(28px);
  transition:opacity .6s ease,transform .6s cubic-bezier(.19,1,.22,1);
}
.step.on .step-card{opacity:1;transform:none}
.step-card .kicker{
  font-family:var(--mono);font-size:.62rem;letter-spacing:.3em;
  text-transform:uppercase;color:var(--brass);margin-bottom:12px;
}
.step-card h3{font-family:var(--serif);font-weight:700;font-size:1.35rem;line-height:1.3;margin-bottom:12px}
.article .step-card p{color:#cfe0d6;font-weight:300;font-size:.98rem;margin:0}
@media (max-width:560px){
  .step{align-items:flex-end;padding-bottom:10vh}
  .step:nth-child(even){justify-content:flex-start}
  .step-card{max-width:100%}
}

/* ---------- SCROLLMATION BIẾN THỂ SPLIT (chữ trái · ảnh phải, màn trập dọc) ---------- */
.scrolly--split .scrolly-media::before{
  content:"";position:absolute;inset:0 55% 0 0;z-index:3;
  background:
    radial-gradient(circle at 80% 15%,rgba(242,166,60,.08),transparent 55%),
    linear-gradient(160deg,#0d2b45,#06121f 80%);
  border-right:1px solid rgba(242,166,60,.35);
}
.scrolly--split .scrolly-media img{
  inset:0 0 0 45%;opacity:1;transform:none;
  filter:brightness(.92) saturate(.96);
  clip-path:inset(100% 0 0 0);
  transition:clip-path 1s cubic-bezier(.65,0,.2,1);
}
.scrolly--split .scrolly-media img.prev{clip-path:inset(0);transition:none;z-index:1}
.scrolly--split .scrolly-media img.on{clip-path:inset(0);z-index:2}
.scrolly--split .scrolly-veil{display:none}
.scrolly--split .scrolly-steps{counter-reset:step}
.scrolly--split .step{counter-increment:step;justify-content:flex-start;padding-left:clamp(20px,5vw,72px)}
.scrolly--split .step:nth-child(even){justify-content:flex-start}
.scrolly--split .step-card{
  max-width:min(440px,36vw);background:transparent;border:0;
  backdrop-filter:none;padding:0;
}
.scrolly--split .step-card::before{
  content:"0" counter(step);display:block;margin-bottom:14px;
  font-family:var(--serif);font-weight:700;font-size:3.2rem;line-height:1;
  color:transparent;-webkit-text-stroke:1.5px var(--brass);
}
@media (max-width:900px){
  .scrolly--split .scrolly-media::before{display:none}
  .scrolly--split .scrolly-media img{inset:0}
  .scrolly--split .step{padding-left:clamp(20px,6vw,80px)}
  .scrolly--split .step-card{
    max-width:440px;padding:30px 34px;border-radius:10px;
    background:rgba(7,22,38,.74);backdrop-filter:blur(14px);
    border:1px solid rgba(242,166,60,.24);
  }
  .scrolly--split .step-card::before{font-size:2.4rem}
}

/* ---------- SCROLLMATION BIẾN THỂ PAPER (dải nền sáng · ảnh card sticky · chữ cuộn) ---------- */
.scrolly--paper{
  display:grid;grid-template-columns:minmax(0,600px) minmax(0,520px);
  justify-content:center;gap:clamp(24px,5vw,84px);
  background:
    radial-gradient(circle at 85% 6%,rgba(242,166,60,.10),transparent 52%),
    linear-gradient(180deg,#f6f1e8,#ece3d1);
  color:var(--ink);
  border-top:1px solid rgba(143,92,18,.28);
  border-bottom:1px solid rgba(143,92,18,.28);
  padding:0 clamp(24px,6vw,96px);
}
.scrolly--paper .scrolly-media{
  position:sticky;top:0;height:100vh;overflow:visible;background:none;
}
/* 3 ảnh cùng khung 3:2, căn giữa dọc bằng translate (tách khỏi transform để transform lo phần trượt vào) */
.scrolly--paper .scrolly-media img{
  inset:auto 0;top:50%;translate:0 -50%;
  height:auto;aspect-ratio:3/2;object-fit:cover;
  border-radius:14px;
  border:1px solid rgba(58,42,12,.12);
  box-shadow:0 24px 56px rgba(46,32,8,.22);
  opacity:0;transform:translateY(54px) scale(.97);
  transition:opacity .85s ease,transform .85s cubic-bezier(.22,1,.3,1);
  filter:none;
}
.scrolly--paper .scrolly-media img.on{opacity:1;transform:none}
.scrolly--paper .scrolly-veil{display:none}
.scrolly--paper .scrolly-steps{margin-top:0;counter-reset:step;padding-bottom:20vh}
.scrolly--paper .step{counter-increment:step;min-height:88vh;padding:0;justify-content:flex-start;align-items:center}
/* bước cuối cao hơn để ảnh 3 còn quãng ghim, đứng yên như 2 ảnh đầu trước khi dải kết thúc */
.scrolly--paper .step:last-child{min-height:104vh}
.scrolly--paper .step:nth-child(even){justify-content:flex-start}
.scrolly--paper .step-card{
  max-width:520px;background:transparent;border:0;padding:0;backdrop-filter:none;
}
.scrolly--paper .step-card::before{
  content:"0" counter(step);display:block;margin-bottom:16px;
  font-family:var(--serif);font-weight:700;font-size:3.2rem;line-height:1;
  color:transparent;-webkit-text-stroke:1.5px var(--brass-dim);
}
.scrolly--paper .step-card .kicker{color:#8f5c12}
.scrolly--paper .step-card h3{color:var(--ink);font-size:clamp(1.5rem,2.4vw,2rem)}
.article .scrolly--paper .step-card p{color:#5b5344;font-weight:400;font-size:1.05rem}
@media (max-width:900px){
  .scrolly--paper{grid-template-columns:1fr;gap:0;padding:0 20px}
  .scrolly--paper .scrolly-media{height:54vh;top:48px;z-index:5}
  .scrolly--paper .step{min-height:72vh}
  .scrolly--paper .step-card::before{font-size:2.4rem}
}

/* ---------- SECTION BACKGROUNDS ---------- */
#ch1{background:linear-gradient(180deg,var(--ink) 0%,var(--deep) 100%)}
#ch2{background:var(--pine)}
#ch3{background:var(--deep)}
#ch4{background:var(--pine)}
#ch5{background:var(--deep)}
#ch6{
  background:
    radial-gradient(ellipse at 50% 118%,rgba(242,166,60,.14),transparent 60%),
    var(--ink);
}

/* ---------- FOOTER ---------- */
footer{
  border-top:1px solid rgba(242,247,251,.1);padding:56px 24px;
  display:flex;flex-direction:column;gap:14px;
  font-family:var(--mono);font-size:.76rem;letter-spacing:.14em;color:rgba(157,184,205,.7);
  max-width:1120px;margin:70px auto 0;
}
footer .credit-line b{color:var(--brass);font-weight:500}
footer .back-link{
  margin-top:14px;display:inline-flex;align-items:center;gap:8px;color:var(--aqua);
  text-decoration:none;width:fit-content;
}
footer .back-link:hover{color:var(--brass-light)}

@media (max-width:900px){
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .stat-grid.cols-3{grid-template-columns:1fr 1fr}
  .keyword-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
  .stat-grid,.stat-grid.cols-3{grid-template-columns:1fr}
  .media-grid.cols-2{grid-template-columns:1fr}
  .keyword-grid{grid-template-columns:1fr}
  #chapnav{gap:14px;overflow-x:auto;justify-content:flex-start;-webkit-overflow-scrolling:touch;
    mask-image:linear-gradient(90deg,transparent,#000 20px,#000 calc(100% - 28px),transparent);
    -webkit-mask-image:linear-gradient(90deg,transparent,#000 20px,#000 calc(100% - 28px),transparent)}
  .scroll-cue{display:none}
  #hero{padding-bottom:5vh;min-height:92vh}
  #sapo{padding-top:32px}
  .section{padding:56px 18px}
  .media-grid{gap:14px;margin-top:36px}
  blockquote.big-quote{margin:36px auto}
  .stat{padding:28px 22px}
  h2{margin-bottom:24px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal,.reveal-left{opacity:1;transform:none;filter:none}
  .reveal-wipe>*{clip-path:none!important}
  [data-parallax] img{transform:none}
}
a:focus-visible{outline:2px solid var(--brass);outline-offset:4px}

/* ---------- TOAST NOTIFICATION ---------- */
#toast{
  position:fixed;bottom:30px;left:50%;transform:translateX(-50%) translateY(100px);
  background:rgba(242,166,60,.95);color:var(--ink);
  padding:12px 24px;border-radius:30px;font-family:var(--sans);font-weight:600;
  font-size:.9rem;z-index:300;box-shadow:0 10px 30px rgba(0,0,0,.3);
  pointer-events:none;opacity:0;transition:transform .4s cubic-bezier(.175,.885,.32,1.275),opacity .3s ease;
}
#toast.show{transform:translateX(-50%) translateY(0);opacity:1}

/* ---------- FLOATING SHARE BUTTON ---------- */
.share-float-container{
  position:fixed;right:22px;bottom:78px;z-index:95;
  display:flex;flex-direction:column;align-items:center;gap:10px;
  opacity:0;pointer-events:none;transition:opacity .4s ease,transform .3s ease;
}
.share-float-container.show{opacity:1;pointer-events:auto}
.share-float-trigger{
  width:46px;height:46px;border-radius:50%;
  border:1px solid rgba(242,166,60,.4);background:rgba(7,22,38,.85);
  color:var(--brass);display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:all .3s ease;box-shadow:0 4px 15px rgba(0,0,0,.2);
  outline:none;
}
.share-float-trigger:hover, .share-float-container.open .share-float-trigger{
  transform:scale(1.05);border-color:var(--brass);background:var(--brass);color:var(--ink);
}
.share-float-menu{
  display:flex;flex-direction:column;gap:8px;
  opacity:0;transform:translateY(15px) scale(0.9);pointer-events:none;
  transition:opacity .3s ease,transform .3s cubic-bezier(.175,.885,.32,1.275);
}
.share-float-container.open .share-float-menu{
  opacity:1;transform:none;pointer-events:auto;
}
.share-float-item{
  width:38px;height:38px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  border:1px solid rgba(242,247,251,.15);background:var(--deep);
  color:var(--mist);transition:all .3s ease;
  outline:none;
}
.share-float-item:hover{
  background:rgba(242,247,251,.08);color:var(--foam);border-color:var(--foam);
}
.share-float-item.share-fb:hover{background:#1877f2;color:#fff;border-color:#1877f2}
.share-float-item.share-zl:hover{background:#0068ff;color:#fff;border-color:#0068ff}
.share-float-item.share-cp:hover{background:var(--brass);color:var(--ink);border-color:var(--brass)}

/* ---------- INLINE SHARE BLOCK ---------- */
.share-block{
  border-top:1px solid rgba(242,247,251,.08);
  padding:44px 0 0;margin:60px auto 0;
  max-width:820px;text-align:center;
}
.share-title{
  font-family:var(--serif);font-size:1.15rem;font-weight:600;
  color:var(--foam);margin-bottom:20px;letter-spacing:.05em;
}
.share-row{
  display:flex;justify-content:center;align-items:center;gap:16px;flex-wrap:wrap;
}
.share-link{
  display:inline-flex;align-items:center;gap:10px;
  padding:10px 22px;border-radius:30px;
  font-family:var(--sans);font-size:.86rem;font-weight:500;
  text-decoration:none;cursor:pointer;
  transition:all .3s ease;
  background:rgba(242,247,251,.04);
  border:1px solid rgba(242,247,251,.08);
  color:var(--mist);
  outline:none;
}
.share-link:hover{
  background:rgba(242,247,251,.08);color:var(--foam);border-color:rgba(242,247,251,.2);
}
.share-link.share-fb:hover{background:rgba(24,119,242,.12);color:#1877f2;border-color:rgba(24,119,242,.3)}
.share-link.share-zl:hover{background:rgba(0,104,255,.12);color:#0068ff;border-color:rgba(0,104,255,.3)}
.share-link.share-cp:hover{background:rgba(242,166,60,.12);color:var(--brass);border-color:rgba(242,166,60,.3)}
.share-link svg{flex-shrink:0}