/* ==========================================================================
   FleckifyS — hệ giao diện dùng chung cho cả 8 trang (bản 20/09/2026)

   Trang chủ chạy NỀN TỐI: `<body class="dark">`. Mọi trang phụ giữ nền giấy
   sáng. Vì thế component chỉ được dùng TOKEN NGỮ NGHĨA (--bg, --fg, --line…),
   không dùng thẳng --paper/--ink; hai tên đó chỉ còn giữ cho vài khối <style>
   nội tuyến ở /admin/ và 404.

   Tương phản đã tính:
   · Nền sáng: #111310 trên #F7F4EC = 16.9:1 · #5A5E55 trên #F7F4EC = 6.4:1
   · Nền tối : #F5F1E6 trên #0D0C0A = 17.3:1 · #B4AE9F = 8.8:1 · #8E897C = 5.6:1
   · Vàng #FDBF07 trên #0D0C0A = 11.8:1 (nền tối: vàng ĐƯỢC làm màu chữ cho
     nhãn/số/gạch) — nhưng trên nền giấy chỉ 1.47:1 nên CẤM làm màu chữ.
   · Chữ ngà trên vàng = 1.47:1 → CẤM. Mọi khối nền vàng phải tự khai
     color:var(--on-signal).
   ========================================================================== */
:root{
  --bg:#F7F4EC;  --bg-2:#EFEADC;  --bg-3:#E3DCC9;
  --fg:#111310;  --fg-2:#5A5E55;  --fg-3:#7C8077;
  --line:rgba(17,19,16,.14); --line-2:rgba(17,19,16,.30); --line-input:rgba(17,19,16,.34);
  --signal:#FDBF07; --signal-hi:#FFD24A; --on-signal:#0D0C0A;
  --on-signal-2:rgba(13,12,10,.74);
  --danger:#8B1A10; --danger-bg:#FBE9E7; --danger-line:#E0B4AC;
  --shadow:0 16px 40px rgba(17,19,16,.12);
  --shadow-lg:0 22px 60px rgba(17,19,16,.16);

  /* tên cũ, chỉ để các khối <style> nội tuyến của trang phụ không gãy */
  --paper:#F7F4EC; --ink:#111310; --ink-2:#5A5E55;

  --display:"Instrument Serif",Georgia,"Times New Roman",serif;
  --ui:"Inter",system-ui,-apple-system,"Segoe UI",Helvetica,Arial,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --gut:clamp(20px,5vw,64px);
  --max:1180px;
  --r:14px;
  --ease:cubic-bezier(.22,.8,.28,1);
  --nav-h:64px;
  color-scheme:light;
}

/* ---- trang chủ: đảo vai màu, đen là mặt nền, vàng thành mực ---- */
body.dark{
  --bg:#0D0C0A;  --bg-2:#16140F;  --bg-3:#1F1C16;
  --fg:#F5F1E6;  --fg-2:#B4AE9F;  --fg-3:#8E897C;
  --line:rgba(245,241,230,.12); --line-2:rgba(245,241,230,.26); --line-input:rgba(245,241,230,.40);
  --danger:#FFA38F; --danger-bg:#2A1512; --danger-line:rgba(255,163,143,.35);
  --shadow:0 18px 44px rgba(0,0,0,.55);
  --shadow-lg:0 26px 70px rgba(0,0,0,.6);
  color-scheme:dark;
}

*{box-sizing:border-box}
[hidden]{display:none!important}
html{
  -webkit-text-size-adjust:100%;scroll-behavior:smooth;overflow-x:hidden;
  scroll-padding-top:calc(var(--nav-h) + 12px);
}
/* Lenis tự lo cuộn mượt; để smooth của trình duyệt chạy cùng là giật. */
html.lenis{scroll-behavior:auto}
body{
  margin:0;background:var(--bg);color:var(--fg);
  font:400 17px/1.65 var(--ui);
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
  -webkit-tap-highlight-color:transparent;
}
img,video,iframe,svg{max-width:100%;display:block}
a{color:inherit}
::selection{background:var(--signal);color:var(--on-signal)}
/* Vòng focus phải là vàng: ở nền tối viền mực sẽ vô hình. */
:focus-visible{outline:3px solid var(--signal);outline-offset:3px;border-radius:4px}

.wrap{width:100%;max-width:var(--max);margin-inline:auto;padding-inline:var(--gut)}
.skip{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;z-index:99;background:var(--signal);color:var(--on-signal);padding:10px 14px;border-radius:8px}

/* ---------- chữ ---------- */
h1,h2,h3{font-family:var(--display);font-weight:400;letter-spacing:-.01em;margin:0}
h1{font-size:clamp(44px,8.2vw,92px);line-height:.98}
h2{font-size:clamp(32px,5.2vw,62px);line-height:1.02}
h3{font-size:clamp(21px,2.4vw,27px);line-height:1.18}
h1 em,h2 em{font-style:italic}
h1 mark,h2 mark{background:var(--signal);color:var(--on-signal);padding:0 .16em;border-radius:3px}
p{margin:0 0 1em}
.lede{font-size:clamp(16px,1.6vw,19px);color:var(--fg-2);max-width:62ch}
.lede strong,.lede b{color:var(--fg);font-weight:600}
.kicker{
  display:flex;align-items:center;gap:10px;margin:0 0 14px;
  font:500 12px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--fg-2);
}
.kicker::before{content:"";width:26px;height:2px;background:var(--signal);display:block;flex:none}
.note,.footnote{font-size:14px;color:var(--fg-2)}
.note{max-width:74ch}
.footnote{margin:14px 0 0}

section{padding:clamp(64px,9vw,128px) 0;position:relative}
section + section{border-top:1px solid var(--line)}

/* ---------- nút ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font:600 15px/1 var(--ui);letter-spacing:.01em;
  min-height:48px;padding:15px 22px;border-radius:999px;border:1.5px solid var(--fg);
  background:transparent;color:var(--fg);text-decoration:none;cursor:pointer;
  transition:transform .25s var(--ease),background .25s var(--ease),color .25s var(--ease),box-shadow .3s var(--ease);
}
.btn:hover{transform:translateY(-2px)}
.btn--signal{background:var(--signal);border-color:var(--signal);color:var(--on-signal)}
.btn--signal:hover{background:var(--signal-hi);border-color:var(--signal-hi);color:var(--on-signal)}
.btn--quiet{background:transparent;border-color:var(--line-2)}
.btn--quiet:hover{border-color:var(--fg)}
.btn--sm{min-height:44px;padding:11px 16px;font-size:14px}
.btn[disabled],.btn:disabled{opacity:.45;pointer-events:none}

/* ==========================================================================
   Thanh điều hướng
   ========================================================================== */
#nav{
  position:sticky;top:0;z-index:40;height:var(--nav-h);display:flex;align-items:center;
  background:transparent;border-bottom:1px solid transparent;
  transition:background .3s var(--ease),border-color .3s var(--ease),backdrop-filter .3s var(--ease);
}
#nav .wrap{display:flex;align-items:center;gap:16px}
#nav.stuck{
  background:color-mix(in srgb,var(--bg) 74%,transparent);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom-color:var(--line);
}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
  #nav.stuck{background:var(--bg)}
}
body.sheet-open #nav{background:var(--bg);backdrop-filter:none;-webkit-backdrop-filter:none}

.brand{display:inline-flex;align-items:center;gap:9px;min-height:44px;font:600 16px/1 var(--ui);text-decoration:none;letter-spacing:-.01em;margin-right:auto}
.brand img{width:28px;height:28px;border-radius:7px}
.navlinks{display:flex;align-items:center;gap:6px;list-style:none;margin:0;padding:0}
.navlinks a{
  position:relative;display:inline-flex;align-items:center;min-height:44px;padding:0 10px;
  font-size:14.5px;text-decoration:none;color:var(--fg-2);transition:color .2s var(--ease);
}
.navlinks a::after{
  content:"";position:absolute;left:10px;right:10px;bottom:4px;height:2px;background:var(--signal);
  transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease);
}
.navlinks a:hover{color:var(--fg)}
.navlinks a[aria-current]{color:var(--fg)}
.navlinks a:hover::after,.navlinks a[aria-current]::after{transform:scaleX(1)}
.nav__cta{margin-left:10px;box-shadow:0 0 0 0 rgba(253,191,7,.4)}
.nav__cta:hover{box-shadow:0 0 0 6px rgba(253,191,7,.14)}
.nav__progress{
  position:absolute;left:0;bottom:-1px;height:2px;width:100%;background:var(--signal);
  transform:scaleX(0);transform-origin:left;will-change:transform;
}

#burger{
  display:none;align-items:center;gap:9px;min-height:44px;
  border:1.5px solid var(--line-2);background:transparent;color:var(--fg);
  border-radius:999px;padding:10px 15px;font:600 14px var(--ui);cursor:pointer;
}
.burger__bars{display:block;width:17px;height:11px;position:relative}
.burger__bars i{position:absolute;left:0;width:100%;height:1.8px;background:currentColor;border-radius:2px;transition:transform .3s var(--ease),opacity .2s}
.burger__bars i:first-child{top:0}
.burger__bars i:last-child{bottom:0}
body.sheet-open .burger__bars i:first-child{transform:translateY(4.6px) rotate(45deg)}
body.sheet-open .burger__bars i:last-child{transform:translateY(-4.6px) rotate(-45deg)}

#sheet{
  position:fixed;inset:0;z-index:45;background:var(--bg);
  display:none;flex-direction:column;justify-content:center;gap:2px;
  padding:calc(var(--nav-h) + 24px) var(--gut) calc(28px + env(safe-area-inset-bottom));
}
#sheet.open{display:flex}
#sheet a{
  font-family:var(--display);font-size:clamp(30px,9vw,46px);text-decoration:none;
  padding:14px 0;border-bottom:1px solid var(--line);
  opacity:0;transform:translateY(14px);
  transition:opacity .4s var(--ease),transform .4s var(--ease);
  transition-delay:calc(var(--i,0) * 45ms);
}
#sheet.open a{opacity:1;transform:none}
#sheet .btn{margin-top:22px;width:100%}
#sheetx{position:absolute;top:12px;right:var(--gut);min-height:44px;min-width:44px;border:0;background:transparent;color:var(--fg);font-size:28px;line-height:1;cursor:pointer}

/* ==========================================================================
   Đầu trang
   ========================================================================== */
.hero{padding-top:clamp(40px,6vw,74px);padding-bottom:clamp(40px,6vw,80px)}
.hero__grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(28px,5vw,64px);align-items:center}
.hero h1{margin-bottom:18px}
.hero__row{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 0}
.hero__facts{display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:28px;font:500 13.5px/1.3 var(--mono);color:var(--fg-2)}
.hero__facts b{color:var(--fg)}
.hero__facts span{display:flex;align-items:center;gap:8px}
.hero__facts span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--signal);flex:none}

.deck{position:relative;aspect-ratio:4/3.1;perspective:1400px}
.deck__card{
  position:absolute;inset:0;margin:auto;width:86%;aspect-ratio:16/10;
  border-radius:var(--r);overflow:hidden;background:var(--bg-2);
  border:1px solid var(--line-2);box-shadow:var(--shadow);
  transform-origin:50% 90%;
}
.deck__card img{width:100%;height:100%;object-fit:cover}
.deck__card--notes{
  background:var(--bg-2);display:flex;flex-direction:column;justify-content:center;gap:6px;
  padding:26px;font:500 13.5px/1.7 var(--mono);color:var(--fg-2);
}
.deck__card--notes b{display:block;font:500 11px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--fg);margin-bottom:10px}
.deck__tag{
  position:absolute;left:14px;bottom:14px;z-index:3;background:var(--signal);color:var(--on-signal);
  font:500 11px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;padding:7px 10px;border-radius:6px;
}

/* ---------- dải chữ chạy ---------- */
.marq{overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-2);padding:14px 0}
.marq__row{display:flex;gap:44px;width:max-content;animation:slide 34s linear infinite}
.paused .marq__row,.marq:hover .marq__row{animation-play-state:paused}
.marq span{font-family:var(--display);font-size:clamp(20px,2.6vw,30px);display:flex;align-items:center;gap:44px;white-space:nowrap}
.marq span::after{content:"";width:9px;height:9px;border-radius:50%;background:var(--signal);flex:none}
@keyframes slide{to{transform:translateX(-50%)}}

/* ---------- vạch sơn vàng (Animmaster · SVG Animations / 5) ---------- */
.paint{display:block;width:100%;height:26px;margin:0;overflow:hidden}
.paint path{fill:none;stroke:var(--signal);stroke-width:7;stroke-linecap:round}

/* ==========================================================================
   Đoạn cuộn dính "notes → slides"
   ========================================================================== */
#scene{padding:0;border-top:1px solid var(--line)}
.scene{position:relative;height:100svh;min-height:520px;display:grid;place-items:center;overflow:hidden}
@supports not (height:100svh){.scene{height:100vh}}
.scene__head{position:relative;z-index:1;text-align:center;max-width:22ch;padding-inline:var(--gut)}
.scene__head h2{margin-bottom:10px}
.scene__cards{position:absolute;inset:0;display:grid;place-items:center;pointer-events:none}
.scene__card{
  position:absolute;width:min(62vw,540px);aspect-ratio:16/10;border-radius:var(--r);overflow:hidden;
  background:var(--bg-2);border:1px solid var(--line-2);box-shadow:var(--shadow-lg);
}
.scene__card img{width:100%;height:100%;object-fit:cover}
.scene__card figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:10px 14px;
  background:color-mix(in srgb,var(--bg) 86%,transparent);color:var(--fg);
  font:500 11.5px/1.3 var(--mono);letter-spacing:.06em;
}
.scene__note{
  display:flex;flex-direction:column;justify-content:center;padding:clamp(20px,3vw,34px);
  background:var(--bg-2);font:500 14px/1.75 var(--mono);color:var(--fg-2);
}
.scene__note b{display:block;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--fg);margin-bottom:12px}

.scene--static{height:auto;display:block;padding:clamp(56px,8vw,104px) var(--gut);max-width:var(--max);margin-inline:auto}
.scene--static .scene__head{max-width:26ch;margin-inline:auto;padding-inline:0}
.scene--static .scene__cards{position:static;display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px;margin-top:34px}
.scene--static .scene__card{position:static;width:auto;transform:none!important;opacity:1!important}

/* ---------- ba bước ---------- */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:clamp(18px,3vw,34px);margin-top:44px;list-style:none;padding:0}
.steps li{border-top:2px solid var(--signal);padding-top:16px}
.steps .n{font:500 12px/1 var(--mono);letter-spacing:.14em;color:var(--fg-2);display:block;margin-bottom:12px}
.steps h3{margin-bottom:8px}
.steps p{margin:0;font-size:15.5px;color:var(--fg-2)}

/* ==========================================================================
   Mục game: video quay màn hình trong khung giấy rách
   ========================================================================== */
.frame{margin:38px 0 0;position:relative;border-radius:var(--r);overflow:hidden;border:1px solid var(--line-2);background:#07090A}
.frame__bar{display:flex;align-items:center;gap:7px;padding:11px 14px;background:color-mix(in srgb,var(--fg) 8%,transparent);font:500 12px/1 var(--mono);color:var(--fg-2)}
.frame__bar i{width:9px;height:9px;border-radius:50%;background:var(--line-2);flex:none}
.frame video{width:100%;aspect-ratio:16/9;object-fit:cover;background:#000}
.frame figcaption{padding:12px 14px;font:500 12.5px/1.5 var(--mono);color:var(--fg-2);border-top:1px solid var(--line)}
.facts{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 0;padding:0;list-style:none}
.facts li{border:1px solid var(--line);border-radius:999px;padding:9px 15px;font-size:14px;color:var(--fg-2);background:var(--bg-2)}
.facts b{color:var(--fg)}

/* ==========================================================================
   Templates: băng thẻ trượt + khung xem lớn
   ========================================================================== */
.tpl{margin-top:30px}
.tpl__head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px}
.tpl__count{margin:0;font:500 12.5px/1 var(--mono);letter-spacing:.1em;color:var(--fg-2)}
.tpl__nav{display:flex;gap:8px}
.tpl__arrow{
  width:46px;height:46px;border-radius:50%;border:1.5px solid var(--line-2);
  background:transparent;color:var(--fg);font-size:17px;cursor:pointer;
  display:grid;place-items:center;transition:border-color .2s,background .2s,opacity .2s;
}
.tpl__arrow:hover{border-color:var(--fg)}
.tpl__arrow[disabled]{opacity:.3;cursor:default}

.tpl__track{
  display:flex;gap:18px;list-style:none;margin:0;padding:0 0 8px;
  overflow-x:auto;overscroll-behavior-x:contain;touch-action:pan-y;
  scroll-snap-type:x mandatory;scrollbar-width:none;
}
.tpl__track::-webkit-scrollbar{display:none}
.tplcard{
  flex:0 0 calc((100% - 36px) / 3);scroll-snap-align:start;
  display:flex;flex-direction:column;gap:12px;
  will-change:transform;
}
.tplcard__open{
  display:block;width:100%;padding:0;border:1px solid var(--line-2);border-radius:var(--r);
  background:var(--bg-2);color:inherit;text-align:left;cursor:pointer;overflow:hidden;
  transition:border-color .25s var(--ease),transform .35s var(--ease);
}
.tplcard__open:hover{border-color:var(--signal)}
.tplcard__media{position:relative;display:block;aspect-ratio:16/10;background:var(--bg-3);overflow:hidden}
.tplcard__media img,.tplcard__media video{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.tplcard__open:hover .tplcard__media img,.tplcard__open:hover .tplcard__media video{transform:scale(1.04)}
.tplcard__media video{position:absolute;inset:0;opacity:0;transition:opacity .35s var(--ease)}
.tplcard__media video.on{opacity:1}
.tplcard__play{
  position:absolute;right:12px;bottom:12px;z-index:2;background:var(--signal);color:var(--on-signal);
  font:500 11px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;padding:8px 11px;border-radius:999px;
}
.tplcard__body{display:block;padding:14px}
.tplcard__name{display:block;font-family:var(--display);font-size:22px;line-height:1.15}
.tplcard__meta{display:block;margin-top:4px;font:500 12px/1.4 var(--mono);color:var(--fg-2)}
.tplcard__buy{width:100%}

/* khung xem lớn */
.lbx{position:fixed;inset:0;z-index:60;display:grid;place-items:center;padding:clamp(12px,3vw,32px)}
.lbx__veil{position:absolute;inset:0;background:color-mix(in srgb,#050604 88%,transparent);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.lbx__sheet{
  position:relative;z-index:1;width:min(1080px,100%);max-height:calc(100svh - 24px);
  display:flex;flex-direction:column;background:var(--bg);color:var(--fg);
  border:1px solid var(--line-2);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow-lg);
}
@supports not (max-height:100svh){.lbx__sheet{max-height:calc(100vh - 24px)}}
.lbx__head{display:flex;align-items:center;gap:14px;padding:14px 16px;border-bottom:1px solid var(--line)}
.lbx__head h3{font-size:clamp(19px,2.4vw,26px)}
.lbx__count{margin:0 0 0 auto;font:500 12.5px/1 var(--mono);color:var(--fg-2)}
#lbxClose{min-width:44px;min-height:44px;border:0;background:transparent;color:var(--fg);font-size:26px;line-height:1;cursor:pointer}
.lbx__stage{
  display:flex;overflow-x:auto;overscroll-behavior:contain;touch-action:pan-y;
  scroll-snap-type:x mandatory;scrollbar-width:none;background:var(--bg-3);
}
.lbx__stage::-webkit-scrollbar{display:none}
.lbx__shot{flex:0 0 100%;scroll-snap-align:center;margin:0;position:relative;aspect-ratio:16/9;background:var(--bg-3)}
.lbx__shot img,.lbx__shot video{width:100%;height:100%;object-fit:contain;background:#0A0B09}
.lbx__arrow{
  position:absolute;top:50%;transform:translateY(-50%);z-index:2;
  width:48px;height:48px;border-radius:50%;border:0;cursor:pointer;
  background:color-mix(in srgb,var(--bg) 78%,transparent);color:var(--fg);font-size:18px;
  display:grid;place-items:center;
}
.lbx__arrow--prev{left:10px}
.lbx__arrow--next{right:10px}
.lbx__arrow[disabled]{opacity:.25;cursor:default}
.lbx__foot{display:flex;align-items:center;gap:14px;flex-wrap:wrap;padding:14px 16px;border-top:1px solid var(--line)}
.lbx__meta{font:500 12.5px/1.5 var(--mono);color:var(--fg-2);margin-right:auto}
body.lbx-open{overflow:hidden}
body.lbx-open #dock,body.lbx-open #chatbtn{display:none}

/* lớp ô vuông chuyển cảnh (Animmaster · Page Transitions / 4) */
.px{position:fixed;inset:0;z-index:59;display:grid;pointer-events:none;
  grid-template-columns:repeat(var(--cols,12),1fr);grid-auto-rows:1fr}
.px i{background:var(--signal);opacity:0;will-change:opacity,transform}

/* ==========================================================================
   Bảng giá · Pass the Deck · founder · FAQ · kết · chân trang
   ========================================================================== */
.switch{display:inline-flex;gap:4px;padding:4px;border:1px solid var(--line-2);border-radius:999px;margin:28px 0 30px}
.switch button{border:0;background:transparent;font:600 14px var(--ui);min-height:44px;padding:10px 20px;border-radius:999px;cursor:pointer;color:var(--fg-2)}
.switch button[aria-selected="true"]{background:var(--signal);color:var(--on-signal)}
.tiers{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}
.tier{border:1px solid var(--line-2);border-radius:var(--r);padding:clamp(22px,3vw,32px);background:var(--bg-2);will-change:transform}
.tier--pick{background:var(--signal);border-color:var(--signal);color:var(--on-signal)}
.tier__flag{display:inline-block;font:500 11px/1 var(--mono);letter-spacing:.14em;background:var(--on-signal);color:var(--signal);padding:6px 9px;border-radius:5px;margin-bottom:14px}
.tier__name{font:500 12.5px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--fg-2);margin:0 0 10px}
.tier--pick .tier__name{color:var(--on-signal-2)}
.tier__price{font-family:var(--display);font-size:clamp(40px,5.4vw,58px);line-height:1;margin:0 0 4px}
.tier__price small{font-size:.42em;font-family:var(--ui);color:var(--fg-2)}
.tier--pick .tier__price small{color:var(--on-signal-2)}
.tier__unit{font:500 13px/1.4 var(--mono);color:var(--fg-2);margin:0 0 18px}
.tier--pick .tier__unit{color:var(--on-signal-2)}
.tier ul{list-style:none;margin:0 0 4px;padding:0;display:grid;gap:9px}
.tier li{position:relative;padding-left:22px;font-size:15.5px}
.tier li::before{content:"";position:absolute;left:0;top:.55em;width:9px;height:2px;background:currentColor}
.tier__eta{margin:18px 0 0;font:500 12.5px/1 var(--mono);color:var(--fg-2)}
.tier--pick .tier__eta{color:var(--on-signal-2)}
.addons{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 0}
.addons div{border:1px solid var(--line);border-radius:999px;padding:9px 15px;font-size:14px;color:var(--fg-2);background:var(--bg-2)}
.addons b{color:var(--fg)}

.stack{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:clamp(18px,3vw,32px);margin-top:40px}
.stack__n{font:500 12px/1 var(--mono);letter-spacing:.14em;color:var(--signal);display:block;margin-bottom:12px}
.stack h3{margin-bottom:8px}
.stack .lede{font-size:15.5px}

.maker{display:grid;grid-template-columns:minmax(0,.78fr) minmax(0,1.22fr);gap:clamp(24px,4vw,52px);align-items:center;margin-top:38px}
.maker__shot{position:relative;isolation:isolate}
/* khối vàng lệch phía sau: áo đen của founder không tan vào nền tối */
.maker__shot::before{content:"";position:absolute;inset:16% -7% -3% 9%;background:var(--signal);border-radius:var(--r);z-index:-1}
.maker__shot img{width:100%;border-radius:var(--r);object-fit:cover}
body.dark .maker__shot img{border-radius:0}
.maker__sig{font:500 13px/1.6 var(--mono);color:var(--fg-2);margin:0}

.faq{margin-top:34px;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:20px 40px 20px 0;position:relative;font-family:var(--display);font-size:clamp(19px,2.2vw,25px);min-height:44px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);font:400 26px/1 var(--ui);color:var(--fg-2)}
.faq details[open] summary::after{content:"–"}
.faq p{margin:0 0 20px;max-width:74ch;color:var(--fg-2);font-size:15.5px}

.close{background:var(--signal);color:var(--on-signal);text-align:center;border-top:0}
.close h2,.close .lede{color:var(--on-signal)}
.close .kicker{color:var(--on-signal-2);justify-content:center}
.close .kicker::before{background:var(--on-signal)}
.close .lede{margin-inline:auto}
.close .hero__row{justify-content:center}
.close .btn--signal{background:var(--on-signal);border-color:var(--on-signal);color:var(--signal)}
.close .btn--signal:hover{background:#000;border-color:#000;color:var(--signal-hi)}
.close .btn--quiet{border-color:rgba(13,12,10,.42);color:var(--on-signal)}

footer{background:var(--bg-2);color:var(--fg-2);padding:44px 0 60px;font-size:14.5px;border-top:1px solid var(--line)}
body.dark footer{background:#080706}
footer .wrap{display:grid;gap:14px}
footer nav{display:flex;flex-wrap:wrap;gap:4px 18px}
/* 03/10: link chân trang cao 44px cho ngón tay (trước 32px); gạch chân bằng text-decoration để vẫn nằm sát chữ */
footer a{color:var(--fg);text-decoration:underline;text-decoration-thickness:1px;text-decoration-color:var(--line-2);text-underline-offset:6px;min-height:44px;min-width:44px;display:inline-flex;align-items:center;justify-content:center}
footer .footnote{color:var(--fg-3);max-width:78ch}

#dock{
  position:fixed;left:0;right:0;bottom:0;z-index:38;display:none;
  padding:10px var(--gut) calc(10px + env(safe-area-inset-bottom));
  background:color-mix(in srgb,var(--bg) 92%,transparent);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-top:1px solid var(--line);
}
#dock .btn{width:100%}
body.typing #dock{display:none}   /* bàn phím iOS đang mở */

/* ---------- con trỏ tuỳ biến (Animmaster · Mouse Effects / 3) ---------- */
.cur{position:fixed;top:0;left:0;z-index:70;pointer-events:none;width:14px;height:14px;border-radius:50%;
  background:var(--signal);mix-blend-mode:difference;will-change:transform;opacity:0}
.cur.on{opacity:1}
@media (pointer:coarse){.cur{display:none}}

/* ---------- hiện dần ---------- */
.rise{opacity:0;transform:translateY(18px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.rise.in{opacity:1;transform:none}
html:not(.js) .rise{opacity:1;transform:none}
/* dòng chữ tách bằng JS (Animmaster · Text Animations / 1) */
.ln{display:block;overflow:hidden}
.ln > span{display:block;will-change:transform}

/* ==========================================================================
   Trang phụ: form đặt hàng, trang chữ, trang quản trị
   ========================================================================== */
/* 03/10: chỉ đặt lề trên/dưới — viết gộp "… 0 …" xoá mất lề hai bên của .wrap, chữ trang Terms/Privacy/Refund/Deposit dính sát mép điện thoại */
.page{padding-block:clamp(40px,6vw,72px) clamp(60px,8vw,100px)}
.navrow{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 0;border-bottom:1px solid var(--line)}
.prose{max-width:74ch}
.prose h2{margin:34px 0 12px;font-size:clamp(26px,3.4vw,36px)}
.prose h3{margin:26px 0 8px}
.prose p,.prose li{color:var(--fg-2);font-size:16px}
.prose strong{color:var(--fg)}
.prose a{color:var(--fg)}
.prose__meta{font:500 12.5px/1.5 var(--mono);color:var(--fg-2);margin-bottom:24px}
.prose ul,.prose ol{padding-left:20px}
.prose li{margin-bottom:8px}

fieldset{border:0;padding:0;margin:0 0 10px}
legend{font-family:var(--display);font-size:clamp(24px,3.4vw,34px);margin-bottom:6px;padding:0}
.f{display:block;margin:22px 0}
.f > span,.f > .req{display:block;font-weight:600;margin-bottom:6px}
.f small{display:block;color:var(--fg-2);font-size:14px;margin-bottom:8px}
.req::after{content:" *";color:var(--signal)}
body:not(.dark) .req::after{color:#B8860B}
input[type=text],input[type=email],input[type=password],input[type=number],textarea,select{
  width:100%;font:400 16px/1.5 var(--ui);color:var(--fg);background:var(--bg-3);
  /* nền sáng: ô nhập để trắng giấy cho sạch; nền tối mới cần ô đậm hơn */
  border:1.5px solid var(--line-input);border-radius:10px;padding:13px 14px;min-height:48px;
}
textarea{min-height:180px;resize:vertical}
input::placeholder,textarea::placeholder{color:var(--fg-3)}
input:focus,textarea:focus,select:focus{border-color:var(--signal);outline:none}
/* nền sáng: ô nhập sáng hơn nền trang một bậc */
body:not(.dark) input[type=text],body:not(.dark) input[type=email],
body:not(.dark) input[type=password],body:not(.dark) input[type=number],
body:not(.dark) textarea,body:not(.dark) select{background:#FFFDF7}
.two{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.hint{font-size:14px;color:var(--fg-2)}
.failed{color:var(--danger);font-size:14.5px;min-height:1em;margin:6px 0 0}
.checks{display:grid;gap:10px}
.checks label{display:flex;gap:10px;align-items:flex-start;font-size:15.5px;min-height:40px}
.acts{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.total{font-family:var(--display);font-size:clamp(34px,4.6vw,46px);line-height:1}
.total span{font:500 12px/1 var(--mono);letter-spacing:.1em;color:var(--fg-2);display:block;margin-bottom:6px}
.total small{display:block;font:400 13.5px/1.5 var(--ui);color:var(--fg-2);margin-top:8px}
.sub,.notes{font-size:14px;color:var(--fg-2)}
.row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.kv{font:500 13px/1.7 var(--mono);color:var(--fg-2)}
.adm{max-width:720px}
.done{display:none;text-align:center;padding:40px 0}
.done.show{display:block}
.done__tick{width:64px;height:64px;border-radius:50%;background:var(--signal);color:var(--on-signal);display:grid;place-items:center;margin:0 auto 18px;font-size:30px}
.done__lead{font-size:18px}
.done__steps{text-align:left;max-width:52ch;margin:24px auto 0;color:var(--fg-2)}
.done__quiet{font-size:14px;color:var(--fg-2)}
.paybox{border:1px solid var(--line-2);border-radius:var(--r);overflow:hidden;margin:28px 0}
.paybox__head{background:var(--signal);color:var(--on-signal);padding:14px 18px;font-weight:600}
.paybox__head h2{color:var(--on-signal);margin:0 0 4px}
.paybox__head p{color:var(--on-signal-2);margin:0;font-size:15px}
.paybox__body{padding:18px;color:var(--fg-2);font-size:15.5px}
.lost{text-align:center;padding:80px 0}
.lost__num{font-family:var(--display);font-size:clamp(80px,18vw,180px);line-height:1}
.lost__links{display:flex;justify-content:center;flex-wrap:wrap;gap:14px;margin-top:20px}

/* ==========================================================================
   Trợ lý chat
   ========================================================================== */
#chatbtn{
  position:fixed;right:18px;bottom:calc(18px + env(safe-area-inset-bottom));z-index:44;
  display:flex;align-items:center;gap:9px;min-height:48px;
  border:1.5px solid var(--on-signal);background:var(--signal);color:var(--on-signal);
  font:600 15px var(--ui);padding:13px 19px;border-radius:999px;cursor:pointer;
  box-shadow:0 10px 30px rgba(0,0,0,.28);
}
#chatbtn i{width:9px;height:9px;border-radius:50%;background:var(--on-signal);display:block}
#chatpanel{
  position:fixed;right:18px;bottom:calc(18px + env(safe-area-inset-bottom));z-index:46;
  width:min(400px,calc(100vw - 32px));max-height:min(660px,calc(100svh - 36px));
  display:none;flex-direction:column;
  background:var(--bg);border:1px solid var(--line-2);border-radius:18px;overflow:hidden;
  box-shadow:var(--shadow-lg);
}
@supports not (max-height:100svh){#chatpanel{max-height:min(660px,calc(100vh - 36px))}}
#chatpanel.open{display:flex}
.chead{display:flex;align-items:center;gap:11px;padding:14px;border-bottom:1px solid var(--line);background:var(--bg-2)}
.chead img{border-radius:8px}
.chead .t{font-weight:600;font-size:15px}
.chead .s{font-size:12.5px;color:var(--fg-2)}
#chatx{margin-left:auto;min-width:44px;min-height:44px;border:0;background:transparent;font-size:24px;line-height:1;cursor:pointer;color:var(--fg-2)}
#chatlog{flex:1;overflow-y:auto;overscroll-behavior:contain;padding:16px;display:flex;flex-direction:column;gap:10px;min-height:220px}
.msg{max-width:88%;padding:11px 14px;border-radius:14px;font-size:15px;white-space:pre-wrap;line-height:1.55}
.msg.bot{background:var(--bg-3);border:1px solid var(--line);align-self:flex-start;border-bottom-left-radius:5px}
.msg.me{background:var(--fg);color:var(--bg);align-self:flex-end;border-bottom-right-radius:5px}
.msg.err{background:var(--danger-bg);border:1px solid var(--danger-line);color:var(--danger);align-self:flex-start;font-size:14px}
.csafe{font-size:12.5px;color:var(--fg-2);margin:2px 0 0;padding:0 2px}
/* 03/10: phải kèm #chatlog — site.js cũng gắn class "typing" lên <body> khi đang gõ vào ô nhập; để trần thì cả trang
   biến thành một hàng flex co theo nội dung → khung mua bộ mẫu rộng hơn màn hình điện thoại lúc gõ email */
#chatlog .typing{display:flex;gap:5px;padding:12px 14px;background:var(--bg-3);border:1px solid var(--line);border-radius:14px;align-self:flex-start;width:fit-content}
#chatlog .typing i{width:7px;height:7px;border-radius:50%;background:var(--fg-2);animation:blink 1.1s infinite}
#chatlog .typing i:nth-child(2){animation-delay:.16s}
#chatlog .typing i:nth-child(3){animation-delay:.32s}
@keyframes blink{0%,60%,100%{opacity:.25}30%{opacity:1}}
.chips{display:flex;flex-wrap:wrap;gap:7px;padding:0 14px 12px}
.chip{border:1px solid var(--line-2);background:var(--bg-2);color:var(--fg);border-radius:999px;padding:9px 12px;min-height:40px;font:500 13px var(--ui);cursor:pointer}
.chip:hover{border-color:var(--fg)}
.cbar{display:flex;gap:8px;padding:12px 14px;border-top:1px solid var(--line);background:var(--bg-2)}
.cbar input{flex:1;border-radius:999px;padding:11px 15px;font-size:16px}
#chatsend{border:0;background:var(--fg);color:var(--bg);border-radius:999px;padding:11px 18px;min-height:44px;font:600 14px var(--ui);cursor:pointer}

/* ==========================================================================
   Màn hình hẹp
   ========================================================================== */
@media (max-width:1023px){
  .tplcard{flex-basis:calc((100% - 18px) / 2)}
}
@media (max-width:980px){
  .hero__grid,.maker{grid-template-columns:1fr}
  .maker__shot{max-width:420px}
  .deck{aspect-ratio:16/11;margin-top:8px}
}
@media (max-width:780px){
  .navlinks,.nav__cta{display:none}
  #burger{display:inline-flex}
  #dock{display:block}
  body{padding-bottom:78px}
  #chatbtn,#chatpanel{bottom:calc(80px + env(safe-area-inset-bottom))}
  .two{grid-template-columns:1fr}
  .scene__card{width:min(84vw,460px)}
  /* blur toàn khung tốn GPU trên máy Android tầm trung */
  #nav.stuck{background:var(--bg);backdrop-filter:none;-webkit-backdrop-filter:none}
}
@media (max-width:699px){
  .tplcard{flex-basis:82%}
  .lbx__sheet{max-height:calc(100svh - 16px)}
}
@media (max-width:480px){
  .hero__facts{gap:8px 18px;font-size:12.5px}
  .btn{padding:14px 18px}
}

/* Máy bật "giảm chuyển động": mọi thứ đứng yên */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .rise{opacity:1;transform:none}
  .nav__progress,.cur,.px{display:none}
  #sheet a{opacity:1;transform:none}
}