/* ============================================================
   BlueprintForge — "Obsidian Forge" design system
   Palette + nền kế thừa từ portfolio (ember cam / jellyfish bg)
   Liquid glass + iridescence layer mới.
   ============================================================ */

/* ---------- Tokens ---------- */
:root{
  /* surfaces & ink (nền tối kiểu portfolio) */
  --bg:        #0a0a0a;
  --bg-1:      #0d0d0f;
  --bg-2:      #121114;
  --bg-3:      #1a1a1a;
  --ink:       #f7f2ec;
  --text:      #d2ccc2; /* user: chữ xám +1 tone (cũ #c4beb4) */
  --text-dim:  #b8b1a6; /* user: chữ xám +1 tone (cũ #a8a196) */
  --line:      rgba(247,242,236,.10);

  /* ember — màu chính (từ portfolio).
     LƯU Ý: cinema.js lerp cả bộ token này theo VÙNG NƯỚC khi lăn
     (cam mặt nước → xanh sâu → tím cuối trang) — đừng hardcode hex cam
     ở component mới, luôn dùng var để chữ/nút đổi màu cùng background. */
  --ember-1: #ffd2b8;
  --ember-2: #ffa726;
  --ember-3: #ff6b35;
  --ember-4: #ff5517;
  --ember-5: #c2410c;
  --ember-core: #ff7a3d;
  --ember-2-rgb: 255,167,38;   /* bản kênh rời cho rgba(var(--…-rgb),a) */
  --ember-3-rgb: 255,107,53;
  --ember-core-rgb: 255,122,61;
  --grad-ember: linear-gradient(135deg,#ffd2b8,#ff8a4c 42%,#ff5517);
  --grad-ember-btn: linear-gradient(135deg,#ff6b35,#ffa726);
  --grad-ember-active: linear-gradient(135deg,#ff5517,#ff8100);

  /* blueprint cyan — dùng rất ít */
  --blue-1:#9be7ff; --blue-2:#38bdf8; --blue-3:#1f9fd6;
  --ok:#7ee0a8;

  /* liquid glass */
  --glass:      rgba(255,255,255,.045);
  --glass-2:    rgba(255,255,255,.075);
  --glass-3:    rgba(255,255,255,.11);
  --glass-dark: rgba(20,15,12,.40);
  --glass-line: rgba(255,255,255,.12);
  --glass-hi:   rgba(255,255,255,.34);

  /* iridescence — ngũ sắc */
  --irid-conic: conic-gradient(from var(--ia,0deg),
      #ff6b35, #ffd29a, #9be7ff, #c9a5ff, #ff8ac2, #ffa726, #ff6b35);

  /* holographic foil (tham chiếu: thẻ holo foil phủ toàn mặt) */
  --foil: linear-gradient(115deg,
    #ff9de2 0%, #ff5ec4 10%, #ff8a5c 20%, #ffd76b 30%, #f4ff8f 38%,
    #7dffb0 47%, #55e6ff 57%, #6ea8ff 67%, #a06bff 77%, #e05eff 87%, #ff9de2 100%);
  --foil-streak: linear-gradient(105deg,
    transparent 42%, rgba(255,255,255,.85) 50%, transparent 58%);
  /* bản sáng cho chữ — luôn nổi trên cả hai pha nền cam */
  --foil-text: linear-gradient(115deg,
    #ffd9f2 0%, #ffa1e2 12%, #ffcda1 24%, #fff3a8 36%, #c2ffd8 48%,
    #a0efff 60%, #c9cdff 72%, #f3bcff 84%, #ffd9f2 100%);
  --foil-lines: repeating-linear-gradient(115deg,
    rgba(255,255,255,.10) 0 2px, rgba(0,0,0,.14) 2px 4px);
  --grain-url: 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='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.6'/%3E%3C/svg%3E");

  --r-sm:8px; --r-md:12px; --r-lg:18px; --r-xl:26px; --r-2xl:34px; --r-pill:999px;
  --wrap:min(1560px,94vw);
  --gutter:clamp(20px,3.5vw,48px);
  --ease:cubic-bezier(.16,1,.3,1);

  --font-display:"Space Grotesk","Hanken Grotesk",system-ui,sans-serif;
  --font-body:"Hanken Grotesk",'Segoe UI',system-ui,sans-serif;
  --font-mono:"JetBrains Mono",Consolas,monospace;
}

@property --ia { syntax:'<angle>'; initial-value:0deg; inherits:false; }

/* ---------- Base ---------- */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  min-height:100vh;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
::selection{background:rgba(var(--ember-3-rgb),.35);color:#fff}
img,svg,video{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid #55e6ff;outline-offset:3px;border-radius:4px;box-shadow:0 0 0 6px rgba(85,230,255,.25)}

::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,#c86ba8,#4aa8c0);border-radius:5px}
::-webkit-scrollbar-thumb:hover{background:var(--foil)}

/* ---------- Background layers ---------- */
#bfCanvas{
  position:fixed;inset:0;width:100%;height:100%;
  z-index:0;pointer-events:none;
}
.bg-veil{ /* chỉ vignette rất nhẹ — giữ nền jellyfish rực như portfolio.
   Mép trên hạ .22→.10: dải tối cũ làm thanh menu "tối tối" (blur kính sample cả veil) */
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background:linear-gradient(180deg, rgba(10,10,10,.10), rgba(10,10,10,0) 26%, rgba(10,10,10,0) 70%, rgba(10,10,10,.48));
}
.grain{
  position:fixed;inset:-50%;z-index:2;pointer-events:none;opacity:.05;
  background-image: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='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.6'/%3E%3C/svg%3E");
  animation:grainShift 9s steps(6) infinite;
}
@keyframes grainShift{
  0%,100%{transform:translate(0,0)} 20%{transform:translate(-2%,1%)}
  40%{transform:translate(1%,-2%)} 60%{transform:translate(-1%,2%)} 80%{transform:translate(2%,1%)}
}

main{position:relative;z-index:4}

/* thanh tiến trình cuộn ngũ sắc (E4) */
.scroll-progress{
  position:fixed;top:0;left:0;right:0;height:2px;z-index:60;pointer-events:none;
  background:var(--foil);background-size:300% 100%;
  transform-origin:0 50%;transform:scaleX(var(--scroll,0));
}
.wrap{max-width:var(--wrap);margin:0 auto;padding-inline:var(--gutter)}

/* ---------- Type utilities ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:.78rem;font-weight:500;letter-spacing:.18em;
  text-transform:uppercase;color:var(--ember-2);
  /* ember-2 đổi theo zone → trên nền cùng zone dễ tiệp màu (vd "HOW IT WORKS"
     xanh nhạt chìm trên nền xanh sâu); trộn 45% trắng: giữ ánh zone, luôn đủ sáng */
  color:color-mix(in oklab, var(--ember-2) 55%, #fff 45%);
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--grad-ember-btn)}

/* Badge foil — style "Most popular" của pricing, dùng lại cho các điểm nhấn.
   Chữ tối trên nền foil chảy; text-shadow phải tắt (kế thừa từ hero sẽ bẩn nền sáng). */
.badge-foil{
  padding:6px 16px;border-radius:var(--r-pill);
  background:var(--foil);background-size:200% 100%;
  color:#140a06;text-shadow:none;
  box-shadow:0 6px 18px -6px rgba(0,0,0,.45);
  animation:iridFlow 6s linear infinite;
}
.eyebrow.badge-foil{color:#140a06;font-weight:700}
.eyebrow.badge-foil::before{display:none}

.h-display{
  font-family:var(--font-display);font-weight:700;
  color:var(--ink);line-height:1.12;letter-spacing:-.022em; /* VI: dấu chồng tầng cần thoáng */
  font-size:clamp(2.55rem,5.9vw,4.25rem);
  text-wrap:balance; /* các dòng tiêu đề to chia đều — không lơ lửng 1 từ */
  text-shadow:0 2px 6px rgba(10,6,3,.55), 0 12px 44px rgba(10,6,3,.5);
}
.h-section{
  font-family:var(--font-display);font-weight:600;color:var(--ink);
  line-height:1.14;letter-spacing:-.018em;
  font-size:clamp(1.9rem,3.7vw,3rem);
  text-shadow:0 2px 6px rgba(10,6,3,.55), 0 10px 36px rgba(10,6,3,.45);
}
.h-card{
  font-family:var(--font-display);font-weight:600;color:var(--ink);
  font-size:1.3rem;line-height:1.35;letter-spacing:-.012em;
}
.lead{
  font-size:clamp(1.1rem,1.45vw,1.32rem);color:#e6dfd5;max-width:60ch;line-height:1.7;
  text-shadow:0 1px 3px rgba(10,6,3,.6), 0 6px 24px rgba(10,6,3,.5);
}
.eyebrow{text-shadow:0 1px 2px rgba(10,6,3,.85), 0 2px 8px rgba(10,6,3,.6)}

.grad-text{
  background:var(--grad-ember);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
  text-shadow:none; /* như .foil-text: shadow kế thừa xuyên fill → chữ đen */
}
/* chữ foil holographic — lưng tối kép để sống sót trên pha nền sáng */
.irid-text{
  background:var(--foil-text);
  background-size:300% 100%;
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
  text-shadow:none; /* shadow kế thừa sẽ xuyên qua fill trong suốt làm xỉn màu */
  animation:iridFlow 7s linear infinite;
  filter:drop-shadow(0 1px 0 rgba(30,10,0,.9)) drop-shadow(0 3px 12px rgba(30,10,0,.7));
}
@keyframes iridFlow{to{background-position:300% 0}}

.section{padding-block:clamp(76px,9.5vw,150px);position:relative}
.section-head{max-width:840px;margin-bottom:clamp(36px,5vw,64px)}
.section-head .h-section{margin:14px 0 16px}

/* ---------- Liquid glass ---------- */
.glass{
  position:relative;
  background:linear-gradient(180deg,var(--glass-2),var(--glass)) , var(--glass-dark);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-xl);
  -webkit-backdrop-filter:blur(20px) saturate(240%) brightness(1.06);
  backdrop-filter:blur(20px) saturate(240%) brightness(1.06);
  /* liquid glass: mép trên lạnh (ánh sáng đi vào), đáy ấm (khúc xạ nền cam) */
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.28),
    inset 1px 0 0 rgba(255,255,255,.07),
    inset -1px 0 0 rgba(255,255,255,.04),
    inset 0 -1px 0 rgba(255,150,80,.16),
    inset 0 24px 48px -32px rgba(255,255,255,.16),
    inset 0 -34px 70px -44px rgba(255,130,60,.22),
    0 32px 80px -32px rgba(0,0,0,.72),
    0 1px 0 rgba(255,255,255,.05);
  overflow:hidden;
  transition:scale .5s var(--ease);
}
/* nội dung nổi TRÊN lớp foil — như số dập nổi trên thẻ */
.glass > *{position:relative;z-index:2}
/* card gắn thấu kính SVG (glass-lens.js, chuyển thể shadertoy 3cKXzR):
   BỎ màng gradient trắng sữa (thủ phạm blur "đục") — sáng/tint nằm trong
   filter; viền = fresnel trắng lệch CHÉO GÓC trên lõi viền tối + bóng đổ
   xuống dưới, đúng edge-line của shader gốc */
.glass.lens-on{
  background:rgba(22,13,8,.26); /* tint đậm hơn — chữ dim trên kính lift cần tương phản */
  border-color:transparent; /* bỏ cạnh viền ngoài theo yêu cầu — kính không khung */
  box-shadow:
    inset 3px 3px 12px -6px rgba(255,255,255,.85),
    inset -4px -4px 14px -7px rgba(255,255,255,.60),
    0 22px 46px -20px rgba(0,0,0,.60);
  transition:scale .5s var(--ease), box-shadow .35s var(--ease);
}
/* VÀNH PHỔ QUANG SAI 3 lớp 1px — tách ra overlay riêng (glass-lens.js chèn
   span.lens-fringe) vì box-shadow không mask được: user muốn cường độ ×3
   NHƯNG mask gradient CHÉO — chromatic chỉ RỰC ở 2 ĐẦU chéo TL↘BR (vùng user
   khoanh), giữa đường chéo lặn hẳn; góc TR/BL cũng sạch */
.lens-fringe{
  position:absolute;inset:0;z-index:2;border-radius:inherit;pointer-events:none;
  box-shadow:
    inset 1px 1px 0 0 rgba(255,80,100,1),
    inset 2px 2px 0 0 rgba(130,255,150,.9),
    inset 3px 3px 0 0 rgba(95,150,255,.81),
    inset -1px -1px 0 0 rgba(90,215,255,1),
    inset -2px -2px 0 0 rgba(130,255,150,.9),
    inset -3px -3px 0 0 rgba(255,110,150,.78);
  -webkit-mask-image:linear-gradient(135deg,#000 0%,#000 18%,transparent 42%,transparent 58%,#000 82%,#000 100%);
          mask-image:linear-gradient(135deg,#000 0%,#000 18%,transparent 42%,transparent 58%,#000 82%,#000 100%);
}
/* canvas sơn lỏng (liquid-cards.js v2): trong suốt nơi chưa có sơn — sơn chỉ
   chảy ra từ vệt chuột; DƯỚI nội dung (z2), screen blend cho chất holo */
.glass > .liquid-fx{
  position:absolute;inset:0;z-index:1;width:100%;height:100%;
  border-radius:inherit;pointer-events:none;
  mix-blend-mode:screen;
  opacity:0;transition:opacity .7s var(--ease);
}
.glass > .liquid-fx.is-live{opacity:1}
.glass:hover{scale:1.015}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
  .glass{background:rgba(20,18,17,.94)}
}
/* specular lỏng: dải highlight cong ở nửa trên — "thấu kính chất lỏng".
   PHẢI ốp SÁT mép + border-radius:inherit — bản cũ left/right:5% + bo góc
   riêng thành "card lồng trong card" lệch mép trên card RỘNG (compare 1427px
   → thụt 71px/bên, user khoanh mũi tên); độ cong đã có radial-gradient lo */
.glass::before{
  content:"";position:absolute;z-index:1;inset:0 0 auto 0;height:44%;
  border-radius:inherit;
  background:
    radial-gradient(130% 90% at 50% -30%, rgba(255,255,255,.15), transparent 62%),
    linear-gradient(180deg, rgba(255,255,255,.09), transparent 75%);
  -webkit-mask:linear-gradient(180deg,#000 30%, transparent);
          mask:linear-gradient(180deg,#000 30%, transparent);
  pointer-events:none;
}
/* HOLO-FOIL: lớp phủ toàn bề mặt như thẻ holographic —
   vệt specular quét + dải foil 10 màu + vân nhiễu xạ + grain kim loại.
   Nghỉ: ánh kim mờ. Hover: foil bừng sáng + shimmer chạy. */
.glass::after{
  content:"";position:absolute;inset:0;z-index:1;
  border-radius:inherit;pointer-events:none;
  background:
    var(--foil-streak),
    var(--foil),
    var(--foil-lines),
    var(--grain-url);
  background-size:260% 260%, 220% 220%, 100% 100%, 140px 140px;
  background-position:140% -40%, 0% 50%, 0 0, 0 0;
  background-repeat:no-repeat, repeat, repeat, repeat;
  background-blend-mode:screen, normal, overlay, overlay;
  mix-blend-mode:screen;
  filter:saturate(175%) contrast(108%);
  opacity:.07;
  transition:opacity .55s var(--ease);
}
.glass:hover::after{
  opacity:.34;
  animation:foilLive 5.5s linear infinite;
}
@keyframes foilLive{
  0%  {background-position:140% -40%, 0% 50%, 0 0, 0 0}
  16% {background-position:-60% 140%, 32% 45%, 0 0, 0 0}
  100%{background-position:-60% 140%, 220% 50%, 0 0, 0 0}
}
@media (prefers-reduced-motion:reduce){
  .glass:hover::after{animation:none;opacity:.22}
}
/* khối dày chữ: foil hover nhẹ thôi, và không scale */
.acc:hover::after,.docs-steps li:hover::after,.compare:hover::after,.access-form:hover::after{
  opacity:.16;animation:none;
}
.acc:hover,.docs-steps li:hover,.compare:hover,.access-form:hover{scale:none}

/* viền ngũ sắc conic — TĨNH khi nghỉ, chỉ xoay khi hover (chỉ dùng cho mockup + CTA band) */
.irid-border{position:relative}
.irid-border::before{
  content:"";position:absolute;inset:-1.5px;height:auto;width:auto;border-radius:inherit;padding:1.5px;
  background:var(--irid-conic);
  -webkit-mask:linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
  opacity:.35;pointer-events:none;z-index:1;
  filter:saturate(140%);
  transition:opacity .5s var(--ease);
}
.irid-border:hover::before{opacity:.9;animation:iridSpin 7s linear infinite}
/* một quầng ấm duy nhất — bỏ halo đa màu kiểu RGB-gamer */
.glass.irid-border{
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.28),
    inset 0 -1px 0 rgba(255,150,80,.16),
    inset 0 24px 48px -32px rgba(255,255,255,.16),
    inset 0 -34px 70px -44px rgba(255,130,60,.22),
    0 32px 80px -32px rgba(0,0,0,.72),
    0 0 44px -10px rgba(var(--ember-core-rgb),.35);
}
@keyframes iridSpin{to{--ia:360deg}}
@media (prefers-reduced-motion:reduce){
  .irid-border:hover::before{animation:none}
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  /* padding-top 2px: chữ HOA (+dấu VI) không descender → ink quang học nằm
     CAO hơn tâm line-box ~1px dù flex center chuẩn — nudge xuống (user soi) */
  min-height:46px;padding:2px 26px 0;border-radius:14px; /* bớt pill theo yêu cầu */
  font-weight:650;font-size:.92rem;border:0;
  text-transform:uppercase;letter-spacing:.05em; /* nút chữ HOA đồng bộ với badge */
  transition:transform .35s var(--ease), box-shadow .35s var(--ease), background .35s;
  position:relative;white-space:nowrap;
}
.btn:active{transform:translateY(1px) scale(.99)}
/* hover → gem cube (gem-buttons.js trên CARD): canvas z-1 + isolate — chìm
   dưới MỌI nội dung in-flow mà không ép position lên con (ép relative từng
   kéo canvas liquid-fx absolute vào flow → nội dung card bị đẩy văng);
   bóng chữ tối kẻo dải mây sáng screen-blend nuốt chữ trắng */
.gem-on{isolation:isolate;
        scale:1.045!important;z-index:2; /* card phồng khi hover; !important
          vì GSAP reveal ghi inline "scale:none" (reset transform riêng lẻ) đè
          class; GSAP không tween scale nên an toàn. .glass đã có
          transition:scale .5s; z2 nổi trên card kề khi phồng chạm mép */
        text-shadow:0 0 2px rgba(8,6,16,.8), 0 1px 4px rgba(8,6,16,.6),
                    0 2px 16px rgba(8,6,16,.5)}
.btn{transition:transform .35s var(--ease), box-shadow .35s var(--ease),
     background .35s, color .3s}
.btn.gem-on{color:#f6f1ff}
.btn--primary{
  color:#1a0d05;
  /* gradient bán trong + blur: nút "kẹo kính" — nền jellyfish ánh xuyên qua,
     vẫn theo token vùng màu nhờ các biến --ember-*-rgb */
  background:linear-gradient(135deg, rgba(var(--ember-3-rgb),.86), rgba(var(--ember-2-rgb),.86));
  -webkit-backdrop-filter:blur(14px) saturate(200%);
  backdrop-filter:blur(14px) saturate(200%);
  box-shadow:0 8px 28px -8px rgba(var(--ember-3-rgb),.55), inset 0 1px 0 rgba(255,255,255,.4);
  overflow:hidden;
}
.btn--primary:hover{
  transform:translateY(-2px);
  box-shadow:
    0 10px 32px -8px rgba(255,94,196,.35),
    0 8px 28px -8px rgba(var(--ember-3-rgb),.55),
    inset 0 1px 0 rgba(255,255,255,.45);
}
/* foil sweep trên mặt nút — quét 1 lần khi hover */
.btn--primary::before{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:var(--foil-streak), var(--foil);
  background-size:260% 260%, 220% 220%;
  background-position:140% -40%, 0% 50%;
  background-repeat:no-repeat, repeat;
  mix-blend-mode:screen;
  filter:saturate(170%);
  opacity:0;transition:opacity .35s;
}
.btn--primary:hover::before{
  opacity:.45;
  animation:foilLive 1.1s var(--ease) 1;
}
.btn--primary>*{position:relative;z-index:1}
.btn--ghost{
  color:var(--ink);
  /* kính lỏng thấy rõ: highlight trên lạnh + rim ấm dưới + brightness
     (blur cũ 14px vẫn có nhưng nền sau nút mịn quá nên không "đọc" ra kính) */
  background:linear-gradient(180deg,rgba(255,255,255,.16),rgba(255,255,255,.05));
  border:1px solid rgba(255,255,255,.24);
  -webkit-backdrop-filter:blur(18px) saturate(240%) brightness(1.28);
  backdrop-filter:blur(18px) saturate(240%) brightness(1.28);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.32), inset 0 -1px 0 rgba(255,150,80,.16),
    0 10px 30px -14px rgba(0,0,0,.5);
}
.btn--ghost:hover{background:linear-gradient(180deg,rgba(255,255,255,.22),rgba(255,255,255,.08));transform:translateY(-2px)}
.btn--sm{min-height:38px;padding:2px 18px 0;font-size:.88rem}
/* CTA trên thanh menu (+ drawer mobile): style FOIL như badge hero —
   bo góc GIỮ 14px của .btn, chữ tối trên nền foil chảy */
.bf-actions .btn--primary,
.bf-drawer__panel .btn--primary{
  color:#140a06;text-shadow:none;
  /* 130%: nút hẹp vẫn khoe GẦN TRỌN dải foil như badge — không kẹt ở lát màu tối */
  background:var(--foil);background-size:130% 100%;
  -webkit-backdrop-filter:none;backdrop-filter:none;
  box-shadow:0 6px 18px -6px rgba(0,0,0,.45), inset 0 1px 0 rgba(255,255,255,.4);
  animation:iridFlow 6s linear infinite;
}
.bf-actions .btn--primary:hover,
.bf-drawer__panel .btn--primary:hover{
  box-shadow:0 10px 26px -8px rgba(0,0,0,.5), inset 0 1px 0 rgba(255,255,255,.5);
}
.btn .arr{transition:transform .35s var(--ease);margin-right:-3px} /* glyph mũi tên advance rộng lệch nhóm chữ sang trái */
.btn:hover .arr{transform:translateX(4px)}
/* CTA hover = VŨ TRỤ (cosmo-btn.js, iq planet shader): canvas z-1 nằm
   TRÊN nền gradient nút, DƯỚI chữ (same trick gem — isolate, không ép
   z lên con); "chuyển dần" = opacity .55s; chữ tối flip sáng kẻo chìm
   vào không gian đen */
.btn.cosmo-on{isolation:isolate;overflow:hidden;
  transition:transform .35s var(--ease), box-shadow .35s var(--ease),
    background .35s, color .5s, border-color .5s}
.btn.cosmo-on .bf-cosmo{
  position:absolute;inset:0;width:100%;height:100%;z-index:-1;
  border-radius:inherit;opacity:0;transition:opacity .55s var(--ease);
  pointer-events:none;
}
.btn.cosmo-on:hover .bf-cosmo{opacity:1}
.btn.cosmo-on:hover{
  color:#f2edff;text-shadow:0 1px 8px rgba(4,6,22,.6);
  border-color:rgba(150,160,255,.42);
  box-shadow:0 10px 34px -8px rgba(90,110,255,.4), inset 0 1px 0 rgba(255,255,255,.16);
}

/* ---------- Header ---------- */
.bf-header{
  position:fixed;top:0;left:0;right:0;z-index:50;
  padding:14px var(--gutter);
  transition:padding .4s var(--ease);
}
.bf-header__pill{
  /* trừ 2×gutter cho BẰNG mép ngoài hàng card bên dưới (.wrap có padding-inline
     — user: menu dài hơn nội dung nhìn lệch); padding dọc 9→4→CHỐT 7
     (user: "-10px xong +6px là đẹp" = net -4px) */
  max-width:calc(var(--wrap) - var(--gutter)*2);margin:0 auto;
  display:flex;align-items:center;gap:18px;
  padding:7px 12px 7px 20px;border-radius:28px;
  /* tint NÂU ẤM nhẹ — nền cam xuyên qua kính; blur 6px (user tinh chỉnh):
     kính mỏng thấy rõ sứa sau thanh; bóng đổ nhạt .3 cho thanh nổi nhẹ nhàng */
  background:linear-gradient(180deg,rgba(255,255,255,.10),rgba(255,255,255,.03)), rgba(40,22,12,.20);
  border:1px solid rgba(255,255,255,.09);
  -webkit-backdrop-filter:blur(6px) saturate(240%) brightness(1.28);
  backdrop-filter:blur(6px) saturate(240%) brightness(1.28);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.22), 0 12px 34px -18px rgba(0,0,0,.3), 0 1px 0 rgba(255,255,255,.05);
  transition:background .4s,box-shadow .4s,border-color .4s;
}
.bf-header.scrolled .bf-header__pill{
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02)), rgba(36,20,11,.28);
  border-color:rgba(255,255,255,.16);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.22), 0 16px 44px -16px rgba(0,0,0,.9), 0 1px 0 rgba(255,255,255,.05);
}
.bf-logo{display:flex;align-items:center;gap:10px;color:var(--ink);font-family:var(--font-display);font-weight:700;letter-spacing:-.02em;font-size:1.02rem}
.bf-logo svg{width:26px;height:26px}
.bf-nav{display:flex;align-items:center;gap:4px;margin-inline:auto}
.bf-nav a{
  padding:10px 15px 8px;border-radius:var(--r-md); /* ink từng lệch lên ~1px (đo range) */
  font-size:.95rem;font-weight:550;color:var(--text);
  text-shadow:0 1px 10px rgba(0,0,0,.38); /* kính sáng hơn — chữ cần neo tối nhẹ */
  transition:color .3s,background .3s;
}
.bf-nav a:hover{color:var(--ink);background:rgba(255,255,255,.06)}
.bf-nav a.active{color:var(--ember-1);background:rgba(var(--ember-3-rgb),.13)}
.bf-actions{display:flex;align-items:center;gap:10px}

.lang-switch{
  display:flex;border-radius:var(--r-md);overflow:hidden;
  border:1px solid var(--glass-line);background:var(--glass);
}
.lang-switch button{
  border:0;background:transparent;color:var(--text-dim);
  font-family:var(--font-mono);font-size:.75rem;font-weight:600;
  padding:9px 11px 7px;letter-spacing:.06em;transition:all .3s; /* nudge ink hoa xuống 1px */
}
.lang-switch button.on{background:var(--grad-ember-active);color:#fff}

.bf-burger{display:none;width:42px;height:42px;border-radius:var(--r-md);border:1px solid var(--glass-line);background:var(--glass);color:var(--ink);font-size:18px;line-height:1}

/* mobile drawer */
.bf-drawer{
  position:fixed;inset:0;z-index:60;display:none;
  background:rgba(8,7,6,.6);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
.bf-drawer.open{display:block}
.bf-drawer__panel{
  position:absolute;top:12px;right:12px;left:12px;
  border-radius:var(--r-xl);padding:22px;
  background:rgba(18,16,14,.92);border:1px solid var(--glass-line);
  -webkit-backdrop-filter:blur(24px) saturate(220%);backdrop-filter:blur(24px) saturate(220%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.12), 0 30px 80px -20px rgba(0,0,0,.9);
  animation:drawerIn .45s var(--ease);
}
@keyframes drawerIn{from{opacity:0;transform:translateY(-14px)}to{opacity:1;transform:none}}
.bf-drawer__panel nav{display:flex;flex-direction:column;gap:4px;margin:14px 0 18px}
.bf-drawer__panel nav a{padding:13px 14px;border-radius:var(--r-md);color:var(--ink);font-weight:600}
.bf-drawer__panel nav a:hover,.bf-drawer__panel nav a.active{background:rgba(var(--ember-3-rgb),.13);color:var(--ember-1)}
.bf-drawer__top{display:flex;align-items:center;justify-content:space-between}
.bf-drawer__close{width:38px;height:38px;border-radius:50%;border:1px solid var(--glass-line);background:var(--glass);color:var(--ink)}

/* ---------- Hero (full page) ---------- */
.hero{
  position:relative;
  min-height:100svh;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding-top:clamp(110px,13vh,150px);
  padding-bottom:clamp(30px,5vw,60px);
  text-align:center;
}
.hero .h-display{max-width:24ch;margin:26px auto 0} /* 3 dòng ngắt bằng <br> */
.hero .lead{margin:26px auto 0}
.hero__ctas{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-top:40px}
.hero__ctas .btn{min-height:52px;padding:2px 32px 0;font-size:1rem}
.hero__note{margin-top:20px;font-family:var(--font-mono);font-size:.82rem;color:#c9c1b6;letter-spacing:.04em;text-shadow:0 1px 3px rgba(10,6,3,.65)}
.hero__note .ok{color:var(--ok)}

/* ---------- Cinema mode (scroll choreography) ---------- */
.hero-stage{position:relative}
.cinema .hero-stage{height:100svh}
.cinema .hero-stage .mockup-zone{
  position:absolute;inset:0;height:100svh;
  display:grid;place-items:center;
  pointer-events:none;padding:0;
}
/* rộng ĐÚNG BẰNG thanh menu (user): wrap trừ 2×gutter = mép .bf-header__pill */
.cinema .hero-stage .mockup{pointer-events:auto;margin:0;width:calc(var(--wrap) - var(--gutter)*2)}
.cinema .mockup{transition:none}
.cinema .marquee{animation:none}

/* cảnh "lặn" xuyên đàn sứa */
.dive{min-height:44vh;display:grid;place-items:center;text-align:center;padding-inline:var(--gutter)}
.cinema .dive{min-height:100svh}
.dive__text{
  font-family:var(--font-display);font-weight:700;
  font-size:clamp(1.8rem,4vw,3.6rem);letter-spacing:-.02em;line-height:1.2;
  max-width:22ch;
}
@media (max-width:880px){.dive{min-height:30vh}}

/* ---------- Mockup dashboard ---------- */
.mockup-zone{position:relative;padding-bottom:clamp(30px,5vw,70px)}
.mockup{
  max-width:100%;margin:clamp(10px,2vw,30px) auto 0; /* full wrap = bằng menu */
  border-radius:var(--r-xl);
  text-align:left;
  transform:perspective(1400px) rotateX(3deg);
  transition:transform .8s var(--ease);
}
.mockup:hover{transform:perspective(1400px) rotateX(1deg) translateY(-4px)}
.mockup__bar{
  display:flex;align-items:center;gap:14px;
  padding:13px 18px;border-bottom:1px solid var(--line);
}
.mockup__dots{display:flex;gap:6px}
.mockup__dots i{width:9px;height:9px;border-radius:50%;background:#3a3531}
.mockup__dots i:first-child{background:#ff6b57}
.mockup__tabs{display:flex;gap:4px;margin-left:6px}
.mockup__tabs span{
  font-size:.8rem;padding:6px 13px;border-radius:var(--r-pill);color:var(--text-dim);
}
.mockup__tabs span.on{background:rgba(var(--ember-3-rgb),.15);color:var(--ember-1)}
.mockup__avatars{margin-left:auto;display:flex}
.mockup__avatars i{
  width:24px;height:24px;border-radius:50%;
  border:2px solid #14110f;margin-left:-7px;
  background:linear-gradient(135deg,var(--a1,#ff8a4c),var(--a2,#ffd29a));
}
.mockup__body{padding:22px}
.mockup__title{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;margin-bottom:18px}
.mockup__title b{font-size:1.15rem;color:var(--ink);font-weight:700}
.mockup__title span{font-size:.85rem;color:var(--text-dim)}
.mockup__grid{display:grid;grid-template-columns:1.1fr 1fr 1.2fr;gap:14px}
.panel{
  border-radius:var(--r-lg);padding:16px;
  background:rgba(255,255,255,.035);
  border:1px solid rgba(255,255,255,.07);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.panel__label{font-family:var(--font-mono);font-size:.75rem;font-weight:500;text-transform:uppercase;letter-spacing:.14em;color:var(--text-dim);margin-bottom:10px}
.panel__big{font-family:var(--font-display);font-weight:700;font-size:2.1rem;font-variant-numeric:tabular-nums;color:var(--ink);line-height:1}
.panel__big em{font-style:normal;font-size:.9rem;color:var(--ok);font-family:var(--font-mono)}
.spark{display:flex;align-items:flex-end;gap:4px;height:44px;margin-top:14px}
.spark i{flex:1;border-radius:3px 3px 0 0;background:linear-gradient(180deg,#ff8a4c,rgba(var(--ember-3-rgb),.16));min-height:12%}
.dotmatrix{display:grid;grid-template-columns:repeat(12,1fr);gap:5px;margin-top:4px}
.dotmatrix i{aspect-ratio:1;border-radius:50%;background:rgba(255,255,255,.09)}
.dotmatrix i.hot{background:var(--ember-3);box-shadow:0 0 8px rgba(var(--ember-3-rgb),.7)}
.dotmatrix i.warm{background:rgba(var(--ember-2-rgb),.55)}
.dotmatrix i.cool{background:rgba(155,231,255,.4)}
.bars{display:flex;align-items:flex-end;gap:9px;height:104px;margin-top:8px}
.bars .col{flex:1;display:flex;flex-direction:column;justify-content:flex-end;gap:4px;height:100%}
.bars .col i{border-radius:4px;background:linear-gradient(180deg,#ffa726,#ff5517)}
.bars .col i.ghostbar{background:rgba(255,255,255,.08)}
.bars .col span{font-family:var(--font-mono);font-size:.66rem;color:var(--text-dim);text-align:center;margin-top:5px}

/* ---------- Marquee ---------- */
.marquee-band{
  padding-block:20px;overflow:hidden;position:relative;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 120px,#000 calc(100% - 120px),transparent);
          mask-image:linear-gradient(90deg,transparent,#000 120px,#000 calc(100% - 120px),transparent);
}
/* hairline holo thay cho border đen */
.marquee-band::before,.marquee-band::after{
  content:"";position:absolute;left:0;right:0;height:1px;z-index:2;pointer-events:none;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.10) 15%,rgba(85,230,255,.22) 40%,rgba(255,94,196,.22) 60%,rgba(255,255,255,.10) 85%,transparent);
}
.marquee-band::before{top:0}
.marquee-band::after{bottom:0}
.marquee{display:flex;gap:56px;width:max-content;animation:marquee 30s linear infinite}
.marquee-band:hover .marquee{animation-play-state:paused}
.marquee span{
  display:flex;align-items:center;gap:12px;
  font-family:var(--font-mono);font-size:.86rem;letter-spacing:.12em;
  /* nằm TRẦN trên nền jellyfish — text-dim xám đồng màu nền cam là tàng hình
     (user gửi ảnh); kem sáng + bóng tối đọc được trên MỌI pha màu nền */
  text-transform:uppercase;color:#eee5d6;white-space:nowrap;
  text-shadow:0 1px 3px rgba(10,6,3,.6), 0 3px 14px rgba(10,6,3,.4);
}
.marquee span::before{content:"◆";font-size:.5rem;color:#7ee7ff;
  text-shadow:0 1px 4px rgba(10,6,3,.5)} /* ember-3 cam trên nền cam = mất hút */
@keyframes marquee{to{transform:translateX(-50%)}}

/* ---------- Stats band ---------- */
.stats-band{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.stat{padding:26px 22px;text-align:left;border-radius:var(--r-lg)}
.stat__num{
  font-family:var(--font-display);font-weight:700;font-size:clamp(2.4rem,3.8vw,3.6rem);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
  color:var(--ink);line-height:1;display:flex;align-items:baseline;gap:2px;
}
.stat__num .suffix{font-size:.55em;color:var(--ember-2)}
.stat__label{margin-top:10px;font-size:.9rem;color:var(--text-dim)}
/* số dập nổi bắt sáng foil khi hover card (E2) */
.stat:hover .stat__num,.tier:hover .tier__price{
  background:var(--foil);background-size:300% 100%;
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
  text-shadow:none; /* bóng chữ .gem-on kế thừa XUYÊN fill trong suốt →
    "$99" hoá đen đặc, mất glow foil (user báo); drop-shadow lo tương phản */
  animation:iridFlow 7s linear infinite;
  filter:drop-shadow(0 1px 0 rgba(30,10,0,.9)) drop-shadow(0 3px 12px rgba(30,10,0,.7));
}
/* flash foil 1 nhịp khi count-up hoàn tất (E8) */
.stat--lit::after{opacity:.28;animation:foilLive 1.2s var(--ease) 1}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;counter-reset:step}
.step{padding:30px 26px;border-radius:var(--r-xl)}
.step__idx{
  font-family:var(--font-mono);font-size:.75rem;letter-spacing:.18em;color:var(--ember-2);
  display:flex;align-items:center;gap:12px;margin-bottom:40px;
}
.step__idx::after{content:"";flex:1;height:1px;background:var(--line)}
.step h3{font-family:var(--font-display);font-weight:600;font-size:1.45rem;line-height:1.3;letter-spacing:-.012em;color:var(--ink);margin-bottom:10px}
.step p{font-size:.98rem}
.step__icon{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;background:rgba(var(--ember-3-rgb),.12);border:1px solid rgba(var(--ember-3-rgb),.25);margin-bottom:18px;font-size:20px;color:var(--ember-2)}

/* ---------- Bento ---------- */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.bento .cell{padding:28px;border-radius:var(--r-xl);display:flex;flex-direction:column;gap:10px}
.cell--w3{grid-column:span 3}
.cell--w2{grid-column:span 2}
.cell--w4{grid-column:span 4}
.cell--w6{grid-column:span 6}
.cell__tag{font-family:var(--font-mono);font-size:.75rem;font-weight:500;letter-spacing:.16em;text-transform:uppercase;color:var(--ember-2)}
.cell h3{font-family:var(--font-display);font-size:1.3rem;font-weight:600;line-height:1.3;letter-spacing:-.012em;color:var(--ink)}
.cell p{font-size:.97rem}
.cell .spacer{flex:1}
.cell__foot{font-family:var(--font-mono);font-size:.75rem;color:var(--text-dim)}

/* ---------- Chips (domains) ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  padding:10px 18px;border-radius:var(--r-pill);
  font-size:.92rem;font-weight:550;color:var(--text);
  background:var(--glass);border:1px solid var(--glass-line);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  transition:all .35s var(--ease);
  position:relative;overflow:hidden;
}
.chip:hover{
  color:var(--ink);transform:translateY(-2px);
  border-color:rgba(255,255,255,.30);
  background:linear-gradient(rgba(20,14,10,.72),rgba(20,14,10,.72)), var(--foil);
  background-size:auto, 300% 100%;
  box-shadow:0 8px 22px -10px rgba(var(--ember-3-rgb),.5);
}
/* chip "hot" = foil pill (cùng ngôn ngữ với badge-foil); hover giữ lối tối của .chip:hover */
.chip--hot{
  border-color:transparent;color:#140a06;font-weight:700;text-shadow:none;
  background:var(--foil);background-size:220% 100%;
  animation:iridFlow 7s linear infinite;
}
.chip--hot:nth-of-type(2n){animation-delay:-2.4s}
.chip--hot:nth-of-type(3n){animation-delay:-4.6s}

/* ---------- Pull quote ---------- */
.pullquote{
  max-width:1000px;margin-inline:auto;text-align:center;
  font-family:var(--font-display);font-weight:500;
  font-size:clamp(1.6rem,3vw,2.5rem);line-height:1.3;letter-spacing:-.02em;color:var(--ink);
  text-shadow:0 2px 6px rgba(10,6,3,.5);
}
/* .mark từng dùng var(--ember-3) — token ĐỔI THEO ZONE nên ở vùng tím nó
   tiệp đúng màu nền = tàng hình (user bắt được). Foil đa sắc nổi mọi zone;
   text-shadow phải none + drop-shadow (bóng kế thừa xuyên fill trong suốt) */
.pullquote .mark{
  background:var(--foil);background-size:300% 100%;
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
  text-shadow:none;animation:iridFlow 9s linear infinite;
  filter:drop-shadow(0 1px 0 rgba(30,10,0,.75)) drop-shadow(0 3px 10px rgba(30,10,0,.45));
}
.pullquote-by{margin-top:20px;text-align:center;font-family:var(--font-mono);font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:#ece4d6;text-shadow:0 1px 4px rgba(10,6,3,.7), 0 3px 12px rgba(10,6,3,.4)} /* trần trên nền — text-dim chìm */

/* ---------- CTA band ---------- */
.cta-band{
  text-align:center;padding:clamp(48px,7vw,84px) clamp(24px,5vw,72px);
  border-radius:var(--r-2xl);position:relative;overflow:hidden;
}
.cta-band .h-section{margin-bottom:14px}
.cta-band p{max-width:52ch;margin:0 auto 30px}
.cta-band__glow{
  position:absolute;left:50%;bottom:-60%;transform:translateX(-50%);
  width:70%;aspect-ratio:2/1;border-radius:50%;
  background:radial-gradient(ellipse at center,rgba(var(--ember-3-rgb),.4),transparent 65%);
  filter:blur(30px);pointer-events:none;
}

/* ---------- Footer ---------- */
.bf-footer{position:relative;z-index:4;margin-top:clamp(60px,8vw,110px);border-top:1px solid var(--line)}
.bf-footer__inner{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;
  padding-block:clamp(44px,6vw,72px);
}
/* footer nằm TRỰC TIẾP trên nền tím finale sáng — chữ trắng hơn tông
   text/text-dim thường + bóng tối nhẹ tách nền (user "trắng hơn xíu") */
.bf-footer h4{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:#ddd5ea;text-shadow:0 1px 8px rgba(22,8,34,.45);margin-bottom:16px}
.bf-footer ul{list-style:none}
.bf-footer li{margin-bottom:10px}
.bf-footer li a{font-size:.94rem;color:#f4efe7;text-shadow:0 1px 10px rgba(22,8,34,.5);transition:color .3s}
.bf-footer li a:hover{color:var(--ember-1)}
.bf-footer__brand p{font-size:.92rem;margin:14px 0 20px;max-width:30ch;color:#f4efe7;text-shadow:0 1px 10px rgba(22,8,34,.5)}
.foot-form{display:flex;gap:8px;max-width:340px}
.foot-form input{
  flex:1;min-width:0;border-radius:14px;padding:11px 18px; /* khớp nút Join */
  background:var(--glass);border:1px solid var(--glass-line);
  color:var(--ink);font-size:.9rem;
}
.foot-form input::placeholder{color:var(--text-dim)}
.bf-footer__base{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding-block:22px;
  font-size:.84rem;color:#d6cfe3;text-shadow:0 1px 8px rgba(22,8,34,.45);
}
.socials{display:flex;gap:10px}
.socials a{
  width:36px;height:36px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--glass-line);background:var(--glass);color:var(--text);
  transition:all .3s var(--ease);
}
.socials a:hover{color:var(--ember-1);border-color:rgba(var(--ember-core-rgb),.4);transform:translateY(-2px)}
.socials svg{width:15px;height:15px;fill:currentColor}

/* ---------- Page hero (subpages) ---------- */
.page-hero{padding-top:clamp(140px,18vh,210px);padding-bottom:clamp(32px,4vw,60px)}
.page-hero .h-display{font-size:clamp(2.5rem,5.2vw,4.4rem);max-width:19ch}
.page-hero .lead{margin-top:18px}

/* ---------- Pipeline (features) ---------- */
.pipeline{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}
.pipe{
  padding:22px 18px;border-radius:var(--r-lg);text-align:center;position:relative;
}
.pipe__n{font-family:var(--font-mono);font-size:.75rem;font-weight:500;color:var(--ember-2);letter-spacing:.16em}
.pipe h3{font-family:var(--font-display);font-size:1.06rem;font-weight:600;color:var(--ink);margin:8px 0 6px}
.pipe p{font-size:.86rem;color:var(--text-dim)}
.pipe:not(:last-child)::after{
  content:"→";position:absolute;inset:auto;right:-13px;top:50%;transform:translateY(-50%);
  color:var(--ember-3);font-size:.9rem;z-index:2;
  background:none;background-size:auto;background-repeat:repeat;background-blend-mode:normal;
  mix-blend-mode:normal;opacity:1;border-radius:0;transition:none;filter:none;animation:none;
}

/* ---------- Code block ---------- */
.codeblock{
  border-radius:var(--r-lg);overflow:hidden;text-align:left;
  border:1px solid rgba(255,255,255,.09);
  background:rgba(10,9,8,.8);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.codeblock__bar{
  display:flex;align-items:center;gap:10px;padding:10px 16px;
  border-bottom:1px solid rgba(255,255,255,.07);
  font-family:var(--font-mono);font-size:.74rem;color:var(--text-dim);letter-spacing:.06em;
}
.codeblock__bar::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 8px var(--ok)}
.codeblock pre{
  padding:18px;overflow-x:auto;
  font-family:var(--font-mono);font-size:.84rem;line-height:1.7;color:#d8d2c8;
}
.codeblock .c-k{color:#ff8a4c}
.codeblock .c-s{color:#ffd29a}
.codeblock .c-v{color:#9be7ff}
.codeblock .c-c{color:#6d675f}
.codeblock .c-ok{color:var(--ok)}

/* ---------- Accordion ---------- */
.accordion{display:flex;flex-direction:column;gap:10px}
.acc{border-radius:var(--r-lg);overflow:hidden}
.acc__head{
  width:100%;display:flex;align-items:center;gap:14px;text-align:left;
  padding:19px 22px;background:transparent;border:0;color:var(--ink);
  font-size:1.04rem;font-weight:650;
}
.acc__head .acc__tag{font-family:var(--font-mono);font-size:.74rem;color:var(--ember-2);letter-spacing:.12em;min-width:34px}
.acc__head .acc__x{
  margin-left:auto;width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;flex:none;
  border:1px solid var(--glass-line);color:var(--ember-2);
  transition:transform .45s var(--ease);font-weight:400;
}
.acc.open .acc__x{transform:rotate(45deg);background:rgba(var(--ember-3-rgb),.15)}
.acc__body{max-height:0;overflow:hidden;transition:max-height .5s var(--ease)}
.acc__body>div{padding:0 22px 20px;font-size:.96rem;color:var(--text)}

/* ---------- Pricing ---------- */
.tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;align-items:stretch}
.tier{padding:32px 28px;border-radius:var(--r-xl);display:flex;flex-direction:column}
.tier__name{font-family:var(--font-mono);font-size:.75rem;letter-spacing:.18em;text-transform:uppercase;color:var(--ember-2)}
.tier__price{font-family:var(--font-display);font-weight:700;font-size:2.8rem;font-variant-numeric:tabular-nums;letter-spacing:-.02em;color:var(--ink);margin:16px 0 2px;line-height:1}
.tier__price small{font-size:.88rem;font-family:var(--font-body);color:var(--text-dim)}
.tier__desc{font-size:.95rem;margin:12px 0 22px}
.tier ul{list-style:none;display:flex;flex-direction:column;gap:11px;margin-bottom:28px}
.tier li{font-size:.94rem;display:flex;gap:10px;align-items:flex-start}
.tier li::before{content:"✓";color:var(--ok);font-weight:700;flex:none}
.tier .btn{margin-top:auto}
.tier--hot{transform:translateY(-8px);overflow:visible;border-color:rgba(255,255,255,.22)}
/* gói Studio là vật thể holo thường trực duy nhất của trang (E3) */
.tier--hot::after{opacity:.15}
.tier--hot:hover::after{opacity:.38}
.tier--hot .tier__badge{
  position:absolute;top:-13px;left:50%;transform:translateX(-50%);
  z-index:3; /* NỔI TRÊN span.lens-fringe (z2, append cuối) — vành quang sai
    từng sơn đè nửa dưới badge làm nó "chìm dưới card" (user bắt bệnh) */
  padding:5px 16px;border-radius:var(--r-pill);font-size:.72rem;font-weight:700;
  background:var(--foil);background-size:200% 100%;color:#140a06;letter-spacing:.08em;
  box-shadow:0 6px 18px -6px rgba(0,0,0,.6);white-space:nowrap;
  animation:iridFlow 6s linear infinite;
}

.compare{overflow-x:auto;border-radius:var(--r-lg)}
.compare table{width:100%;border-collapse:collapse;min-width:640px}
.compare th,.compare td{padding:14px 18px;text-align:left;font-size:.92rem;border-bottom:1px solid var(--line)}
.compare th{font-family:var(--font-mono);font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--text-dim)}
.compare td:first-child{color:var(--ink)}
.compare .yes{color:var(--ok)}
.compare .no{color:var(--text-dim)}
.compare tr:last-child td{border-bottom:0}

.access-form{max-width:640px;margin-inline:auto;padding:clamp(30px,5vw,48px);border-radius:var(--r-2xl)}
.access-form .frow{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:12px}
.access-form input,.access-form select,.access-form textarea{
  width:100%;padding:13px 18px;border-radius:var(--r-md);
  background:rgba(255,255,255,.05);border:1px solid var(--glass-line);
  color:var(--ink);font-size:.95rem;font-family:inherit;
}
.access-form input::placeholder,.access-form textarea::placeholder{color:var(--text-dim)}
.access-form select{appearance:none;color:var(--text)}
.access-form textarea{resize:vertical;min-height:90px;margin-bottom:12px}
.access-form .hp{position:absolute;left:-9999px;opacity:0}
.form-note{font-size:.8rem;color:#ddd5c8;margin-top:14px;text-align:center;
  text-shadow:0 1px 3px rgba(10,6,3,.55)} /* ghi chú giá nằm TRẦN trên nền
  (pricing dưới 3 tier) — text-dim từng chìm hẳn vào nền cam */

/* ---------- Docs ---------- */
.docs-layout{display:grid;grid-template-columns:260px 1fr;gap:clamp(28px,4vw,64px);align-items:start}
.docs-side{position:sticky;top:110px;display:flex;flex-direction:column;gap:2px}
.docs-side a{
  padding:9px 14px;border-radius:var(--r-md);font-size:.9rem;color:var(--text);
  border-left:2px solid transparent;transition:all .3s;
}
.docs-side a:hover{color:var(--ink);background:rgba(255,255,255,.04)}
.docs-side a.on{color:var(--ember-1);border-left-color:var(--ember-3);background:rgba(var(--ember-3-rgb),.09);border-radius:0 var(--r-md) var(--r-md) 0}
.docs-body{min-width:0}
.docs-body section{margin-bottom:clamp(44px,6vw,64px);scroll-margin-top:120px}
.docs-body h2{font-family:var(--font-display);font-weight:600;font-size:1.7rem;line-height:1.25;letter-spacing:-.018em;color:var(--ink);margin-bottom:14px}
.docs-body h3{font-size:1.08rem;color:var(--ink);margin:22px 0 8px}
.docs-body p{font-size:.97rem;margin-bottom:12px}
.docs-body .codeblock{margin:16px 0}
.docs-steps{list-style:none;counter-reset:ds;display:flex;flex-direction:column;gap:14px;margin:16px 0}
.docs-steps li{
  counter-increment:ds;display:flex;gap:14px;align-items:flex-start;
  padding:16px 18px;border-radius:var(--r-lg);font-size:.94rem;
}
.docs-steps li::before{
  content:counter(ds);position:static;flex:none;width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;font-family:var(--font-mono);font-size:.75rem;
  background:rgba(var(--ember-3-rgb),.14);color:var(--ember-1);border:1px solid rgba(var(--ember-3-rgb),.3);
}
.cli-table{overflow-x:auto;border-radius:var(--r-lg)}
.cli-table table{width:100%;border-collapse:collapse;min-width:520px}
.cli-table th,.cli-table td{padding:12px 16px;text-align:left;font-size:.88rem;border-bottom:1px solid var(--line)}
.cli-table th{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--text-dim)}
.cli-table td code{font-family:var(--font-mono);font-size:.84rem;color:var(--ember-1);background:rgba(var(--ember-3-rgb),.09);padding:2px 8px;border-radius:6px}
.cli-table tr:last-child td{border-bottom:0}

/* ---------- Blog ---------- */
.post-featured{
  display:grid;grid-template-columns:1.15fr 1fr;border-radius:var(--r-2xl);overflow:hidden;
}
.post-featured__cover{
  min-height:300px;position:relative;overflow:hidden;
  background:#140a06;
}
.post-featured__cover::before{ /* foil tĩnh — texture, không phải lava lamp */
  content:"";position:absolute;inset:-25%;
  background:conic-gradient(from 200deg at 55% 55%,#ff6b35,#ffd29a,#9be7ff,#c9a5ff,#ff8ac2,#ffa726,#ff6b35);
  filter:blur(48px) saturate(140%);
  opacity:.55;
}
.post-featured__cover::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(90% 90% at 28% 22%,rgba(var(--ember-core-rgb),.4),transparent 62%),
    linear-gradient(180deg,rgba(10,6,4,.12),rgba(10,6,4,.55)),
    var(--grain-url);
  background-blend-mode:normal,normal,overlay;
}
.post-featured__body{padding:clamp(26px,4vw,46px);display:flex;flex-direction:column;gap:14px}
.post-meta{display:flex;gap:14px;align-items:center;font-family:var(--font-mono);font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;color:var(--text-dim);flex-wrap:wrap}
.post-meta .tag{padding:4px 12px;border-radius:var(--r-pill);background:rgba(var(--ember-3-rgb),.12);color:var(--ember-1);border:1px solid rgba(var(--ember-3-rgb),.25)}
.post-featured__body h2{font-family:var(--font-display);font-weight:600;font-size:clamp(1.55rem,2.6vw,2.2rem);letter-spacing:-.018em;color:var(--ink);line-height:1.28}
.post-featured__body p{font-size:.96rem}
.post-featured__body .more{margin-top:auto;color:var(--ember-1);font-weight:650;font-size:.9rem}

.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:16px}
.post-card{padding:26px;border-radius:var(--r-xl);display:flex;flex-direction:column;gap:12px;transition:transform .45s var(--ease),scale .5s var(--ease)}
.post-card:hover{transform:translateY(-5px)}
.post-card h3{font-size:1.14rem;font-weight:700;color:var(--ink);line-height:1.35}
.post-card p{font-size:.92rem}
.post-card .more{margin-top:auto;color:var(--ember-1);font-weight:650;font-size:.88rem}

/* ---------- Reveal ---------- */
.rv{opacity:0;transform:translateY(26px);transition:opacity .9s var(--ease),transform .9s var(--ease),scale .5s var(--ease)}
.rv.in{opacity:1;transform:none}
.rv-d1{transition-delay:.08s}.rv-d2{transition-delay:.16s}.rv-d3{transition-delay:.24s}
.rv-d4{transition-delay:.32s}.rv-d5{transition-delay:.4s}.rv-d6{transition-delay:.48s}

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

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .pipeline{grid-template-columns:repeat(3,1fr)}
  .pipe:nth-child(3n)::after{display:none}
  .bento .cell--w2{grid-column:span 3}
  .bento .cell--w4{grid-column:span 6}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .docs-layout{grid-template-columns:200px 1fr}
}
@media (max-width:880px){
  .bf-nav{display:none}
  .bf-burger{display:grid;place-items:center}
  .bf-actions .btn{display:none}
  .stats-band{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr}
  .mockup__grid{grid-template-columns:1fr 1fr}
  .tiers{grid-template-columns:1fr;max-width:460px;margin-inline:auto}
  .tier--hot{transform:none}
  .post-featured{grid-template-columns:1fr}
  .post-featured__cover{min-height:200px}
  .docs-layout{grid-template-columns:1fr}
  .docs-side{position:static;flex-direction:row;flex-wrap:wrap;gap:6px;margin-bottom:8px}
  .docs-side a.on{border-left-color:transparent;border-radius:var(--r-pill);background:rgba(var(--ember-3-rgb),.14)}
  .bf-footer__inner{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .bento{grid-template-columns:1fr}
  .bento .cell{grid-column:span 1 !important}
  .pipeline{grid-template-columns:repeat(2,1fr)}
  .pipe::after{display:none !important}
  .mockup{transform:none}
  .mockup:hover{transform:none}
  .mockup__grid{grid-template-columns:1fr}
  .mockup__tabs{display:none}
  .access-form .frow{grid-template-columns:1fr}
}
@media (max-width:560px){
  .stats-band{grid-template-columns:1fr 1fr}
  .post-grid{grid-template-columns:1fr}
  .hero__ctas .btn{width:100%}
  .bf-footer__inner{grid-template-columns:1fr}
  .foot-form{max-width:none}
}

/* ===== voxel-reveal: mảnh vỡ card (bf-shatter) =====
   Clone trong mảnh KHÔNG được chạy animation/transition — 48 bản foil
   iridFlow tích cùng lúc = bão repaint mỗi frame (nguồn lag entrance) */
.bf-shatter *, .bf-shatter *::before, .bf-shatter *::after{
  animation:none!important;
  transition:none!important;
}