/* ============================================================
   Mediq AI — Trợ lý AI y khoa cho bác sĩ
   Display: Bricolage Grotesque · UI: Be Vietnam Pro (cả 2 có subset vietnamese)
   ============================================================ */
*,*::before,*::after{box-sizing:border-box}

:root{
  /* --- surfaces: một họ xám lạnh duy nhất, không trộn ấm/lạnh --- */
  --bg:#f4f7fc;
  --bg-2:#eaf0f9;
  --paper:#fff;
  --ink:#0b1729;
  --ink-2:#1c2c45;
  --muted:#4a5c78;
  --muted-2:#6b7d99;
  --faint:#94a3bb;
  --line:#e0e7f2;
  --line-2:#c6d2e4;

  /* --- một màu nhấn duy nhất --- */
  --brand:#1b56e0;
  --brand-h:#1345bd;
  --brand-lt:#4d84f5;
  --brand-wash:#eef3fe;
  --brand-edge:#cbdcfd;
  --brand-deep:#0a2a72;

  /* --- dark band --- */
  --d0:#070b14;
  --d1:#0d1424;
  --d2:#18223a;
  --d3:#26334f;

  /* --- semantic: CHỈ dùng cho cảnh báo/trạng thái, không trang trí --- */
  --warn:#e11d48;
  --warn-lt:#fb7185;
  --ok:#0d9f6e;
  --ok-lt:#34d399;
  --hold:#d97706;
  --hold-lt:#fbbf24;

  /* --- bóng nhuốm màu nền, không dùng đen thuần --- */
  --sh-xs:0 1px 2px rgba(11,42,114,.06);
  --sh-sm:0 2px 8px -2px rgba(11,42,114,.10);
  --sh-md:0 10px 28px -10px rgba(11,42,114,.18);
  --sh-lg:0 26px 60px -24px rgba(11,42,114,.30);
  --sh-brand:0 18px 40px -16px rgba(27,86,224,.45);

  --font-ui:"Be Vietnam Pro",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --font-dp:"Bricolage Grotesque","Be Vietnam Pro",-apple-system,sans-serif;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;

  --wrap:1280px;
  --ease:cubic-bezier(.22,1,.36,1);          /* spring-ish, có đà */
  --ease-out:cubic-bezier(.16,1,.3,1);

  --z-bg:0; --z-content:1; --z-sticky:30; --z-grain:80; --z-skip:90;
}

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:6rem}
body{
  margin:0;background:var(--bg);color:var(--ink-2);
  font-family:var(--font-ui);font-size:16px;line-height:1.65;
  font-weight:400;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:clip;
}
::selection{background:var(--brand);color:#fff}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul{padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2.5px solid var(--brand);outline-offset:3px;border-radius:4px}

/* --- hạt nhiễu phủ toàn trang: phá cái phẳng của vector thuần --- */
.grain{
  position:fixed;inset:0;z-index:var(--z-grain);pointer-events:none;opacity:.34;
  mix-blend-mode:soft-light;
  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='.82' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E");
}

/* blend toàn màn tốn paint mỗi khung cuộn — máy yếu/mobile bỏ qua, texture ở đó ít giá trị nhất */
@media(max-width:640px){.grain{display:none}}

.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:1.25rem}
@media(min-width:640px){.wrap{padding-inline:2rem}}
@media(min-width:1024px){.wrap{padding-inline:2.5rem}}
.wrap-narrow{max-width:58rem}

.ic{width:16px;height:16px;flex:none;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
.ic-14{width:14px;height:14px;stroke-width:2}
.ic-18{width:18px;height:18px}
.ic-20{width:20px;height:20px}
.ic-24{width:24px;height:24px;stroke-width:1.6}

/* ============================================================
   MOTION
   ============================================================ */
@keyframes floatSlow{0%,100%{transform:translate3d(0,0,0) rotate(0)}50%{transform:translate3d(0,-14px,0) rotate(1.2deg)}}
@keyframes aiGlow{0%,100%{opacity:.32;transform:scale(1)}50%{opacity:.62;transform:scale(1.07)}}
@keyframes shimmer{0%{background-position:-180% 0}100%{background-position:180% 0}}
@keyframes sweep{0%{transform:translateX(-120%)}55%,100%{transform:translateX(220%)}}
.an-float{animation:floatSlow 11s ease-in-out infinite;will-change:transform}
.an-glow{animation:aiGlow 7s ease-in-out infinite;will-change:opacity,transform}

/* vào màn: dịch + mờ, xếp tầng theo --d */
.js [data-rv]{opacity:0;transform:translate3d(0,22px,0);
  transition:opacity .72s var(--ease-out),transform .72s var(--ease-out);
  transition-delay:var(--d,0ms);will-change:opacity,transform}
.js [data-rv].rv-in{opacity:1;transform:none}

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

/* ============================================================
   LỚP TRANG TRÍ
   ============================================================ */
.deco{position:absolute;inset:0;pointer-events:none;overflow:hidden;z-index:var(--z-bg)}
.orb{position:absolute;border-radius:9999px;filter:blur(90px);pointer-events:none}

/* lưới chấm sáng + mesh xuyên tâm, không phải gradient 45° đều tăm tắp */
.grid-light{position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(27,86,224,.16) 1.1px,transparent 1.1px);
  background-size:26px 26px;
  -webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 30%,#000 45%,transparent 100%);
  mask-image:radial-gradient(ellipse 80% 60% at 50% 30%,#000 45%,transparent 100%)}
.grid-dark{position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(77,132,245,.075) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(77,132,245,.075) 1px,transparent 1px),
    radial-gradient(rgba(77,132,245,.20) 1.1px,transparent 1.1px);
  background-size:34px 34px,34px 34px,30px 30px;
  -webkit-mask-image:radial-gradient(ellipse 85% 70% at 50% 40%,#000 40%,transparent 100%);
  mask-image:radial-gradient(ellipse 85% 70% at 50% 40%,#000 40%,transparent 100%)}

/* con trỏ rọi vào viền thẻ */
.spot{position:relative;isolation:isolate}
.spot::before{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  opacity:0;transition:opacity .35s var(--ease);z-index:2;
  background:radial-gradient(280px circle at var(--mx,50%) var(--my,50%),rgba(27,86,224,.13),transparent 62%)}
.spot:hover::before{opacity:1}
.sec-dark .spot::before,.legal .spot::before{
  background:radial-gradient(300px circle at var(--mx,50%) var(--my,50%),rgba(77,132,245,.20),transparent 62%)}

/* mối nối sáng↔tối: đường chỉ phát sáng ở mép, để dải tối trông có chủ ý
   chứ không giống khối dán nhầm giữa trang sáng */
.sec-dark,.legal,.ftr{
  box-shadow:inset 0 1px 0 rgba(77,132,245,.34),inset 0 -1px 0 rgba(77,132,245,.2)}
.ftr{box-shadow:inset 0 1px 0 rgba(77,132,245,.28)}

/* xếp tầng khi vào màn — CSS không nhân được chỉ số nth-child nên liệt kê tay */
[data-rv]:nth-child(1){--d:0ms}
[data-rv]:nth-child(2){--d:80ms}
[data-rv]:nth-child(3){--d:160ms}
[data-rv]:nth-child(4){--d:240ms}
[data-rv]:nth-child(5){--d:320ms}
[data-rv]:nth-child(6){--d:400ms}
[data-rv]:nth-child(7){--d:480ms}
[data-rv]:nth-child(8){--d:560ms}

/* ============================================================
   HEADER
   ============================================================ */
.hdr{position:sticky;top:0;z-index:var(--z-sticky);
  background:rgba(244,247,252,.72);backdrop-filter:blur(16px) saturate(180%);
  -webkit-backdrop-filter:blur(16px) saturate(180%);
  border-bottom:1px solid transparent;transition:background .35s var(--ease),border-color .35s var(--ease),box-shadow .35s var(--ease)}
.hdr.is-stuck{background:rgba(255,255,255,.86);border-bottom-color:var(--line);box-shadow:var(--sh-sm)}
.hdr-row{display:flex;align-items:center;justify-content:space-between;height:68px;gap:1rem;
  transition:height .35s var(--ease)}
@media(min-width:768px){.hdr-row{height:84px}.hdr.is-stuck .hdr-row{height:68px}}
.logo{display:flex;align-items:center;gap:.625rem}
.logo img{height:60px;width:auto;object-fit:contain;transition:transform .35s var(--ease)}
.logo:hover img{transform:scale(1.04)}

.nav{display:none;align-items:center;gap:.125rem;font-size:.8125rem;font-weight:500;color:var(--muted)}
@media(min-width:1280px){.nav{display:flex}}
.nav a{position:relative;padding:.5rem .75rem;border-radius:.625rem;
  transition:color .25s var(--ease),background .25s var(--ease)}
.nav a::after{content:"";position:absolute;left:.75rem;right:.75rem;bottom:.3rem;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform .35s var(--ease)}
.nav a:hover{color:var(--brand);background:var(--brand-wash)}
.nav a[aria-current="true"]{color:var(--brand-deep);font-weight:600}
.nav a[aria-current="true"]::after{transform:scaleX(1)}

.hdr-cta{display:none}
@media(min-width:640px){.hdr-cta{display:flex;align-items:center;gap:.75rem}}
.hdr-mob{display:flex;align-items:center;gap:.5rem}
/* burger phải sống tới đúng lúc .nav xuất hiện (1280px), nếu không 640–1279px mất sạch điều hướng */
@media(min-width:1280px){.hdr-mob{display:none}}
@media(min-width:640px){.hdr-mob>.btn{display:none}}   /* đã có .hdr-cta, khỏi lặp nút */
@media(max-width:1279px){.hdr-cta{margin-left:auto}}  /* chưa có .nav thì dồn CTA + burger về phải */
.burger{padding:.5rem;border-radius:.75rem;color:var(--ink);display:flex;
  border:1px solid var(--line);background:rgba(255,255,255,.7);
  transition:background .25s var(--ease),transform .12s var(--ease)}
.burger:hover{background:#fff}
.burger:active{transform:scale(.94)}

.mobmenu{display:none;background:rgba(255,255,255,.97);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);padding:1rem 1.25rem 1.75rem;box-shadow:var(--sh-md)}
.mobmenu[data-open]{display:block;animation:mobIn .38s var(--ease-out)}
@keyframes mobIn{from{opacity:0;transform:translate3d(0,-10px,0)}to{opacity:1;transform:none}}
@media(min-width:1280px){.mobmenu{display:none!important}}
.mobmenu-grid{display:grid;grid-template-columns:1fr 1fr;gap:.5rem;font-size:.75rem;font-weight:500}
.mobmenu-grid a{display:flex;align-items:center;justify-content:space-between;gap:.375rem;padding:.75rem;
  background:var(--bg);border:1px solid var(--line);border-radius:.75rem;color:var(--ink-2);
  transition:background .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease)}
.mobmenu-grid a:hover{background:var(--brand-wash);border-color:var(--brand-edge);color:var(--brand-deep)}
.mobmenu-grid a:active{transform:scale(.97)}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;font-weight:600;
  border-radius:9999px;white-space:nowrap;position:relative;overflow:hidden;
  transition:background .28s var(--ease),box-shadow .28s var(--ease),transform .18s var(--ease),color .28s var(--ease)}
.btn:active{transform:translateY(1px) scale(.985)}
.btn .ic{transition:transform .32s var(--ease)}
.btn:hover .ic:last-child{transform:translateX(3px)}
.btn-sm{padding:.625rem 1.25rem;font-size:.875rem}
.btn-md{padding:.875rem 1.5rem;font-size:.8125rem;font-weight:600}
@media(min-width:640px){.btn-md{font-size:.875rem}}
.btn-blue{background:var(--brand);color:#fff;box-shadow:var(--sh-brand)}
.btn-blue:hover{background:var(--brand-h);box-shadow:0 22px 46px -16px rgba(27,86,224,.6);transform:translateY(-2px)}
.btn-blue:active{transform:translateY(0) scale(.985)}
.btn-dark{background:var(--ink);color:#fff;box-shadow:var(--sh-md)}
.btn-dark:hover{background:var(--ink-2);transform:translateY(-2px);box-shadow:var(--sh-lg)}
.btn-dark:active{transform:translateY(0) scale(.985)}

.btn-hero{width:100%;padding:1.125rem 2.25rem;border-radius:1rem;font-size:.9375rem;color:#fff;
  font-weight:700;letter-spacing:-.01em;
  background:linear-gradient(115deg,#1b56e0 0%,#1345bd 45%,#0a2a72 100%);
  box-shadow:var(--sh-brand),inset 0 1px 0 rgba(255,255,255,.22)}
@media(min-width:640px){.btn-hero{width:auto;font-size:1rem}}
.btn-hero:hover{transform:translateY(-3px);box-shadow:0 30px 60px -18px rgba(27,86,224,.62),inset 0 1px 0 rgba(255,255,255,.3)}
.btn-hero:active{transform:translateY(-1px) scale(.99)}
.shine{position:absolute;inset:0;pointer-events:none;overflow:hidden;border-radius:inherit}
.shine::after{content:"";position:absolute;top:-40%;bottom:-40%;width:38%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.32),transparent);
  transform:skewX(-18deg);animation:sweep 4.6s var(--ease) infinite}

/* ============================================================
   KHUNG SECTION + CHỮ
   ============================================================ */
.sec{padding:5rem 0 5.5rem;position:relative;overflow:hidden}
@media(min-width:768px){.sec{padding:7rem 0 7.75rem}}
.sec-light{background:var(--bg)}
.sec-white{background:var(--paper)}
.sec-dark{background:var(--d0);color:#d7e0ee}
.sec>.wrap{position:relative;z-index:var(--z-content)}

.sec-head{max-width:50rem;margin-inline:auto;text-align:center;display:grid;gap:1.125rem;margin-bottom:3.5rem}
@media(min-width:768px){.sec-head{margin-bottom:4.5rem}}
.sec h2{font-family:var(--font-dp);font-size:1.875rem;font-weight:800;letter-spacing:-.035em;
  line-height:1.08;color:var(--ink);text-wrap:balance}
@media(min-width:640px){.sec h2{font-size:2.75rem}}
@media(min-width:1024px){.sec h2{font-size:3.125rem}}
.sec-dark h2{color:#fff}
.sec-sub{font-size:.9375rem;color:var(--muted);line-height:1.75;max-width:42rem;margin-inline:auto;text-wrap:pretty}
@media(min-width:640px){.sec-sub{font-size:1.0625rem}}
.sec-dark .sec-sub{color:#a9b8ce}

.badge{display:inline-flex;align-items:center;gap:.5rem;font-size:.6875rem;font-weight:600;
  text-transform:uppercase;letter-spacing:.11em;color:var(--brand-deep);background:var(--brand-wash);
  padding:.5rem 1rem;border-radius:.5rem;border:1px solid var(--brand-edge);box-shadow:var(--sh-xs)}
.badge-teal{color:var(--brand-deep);background:var(--brand-wash);border-color:var(--brand-edge)}
.badge-dark{display:inline-flex;align-items:center;gap:.5rem;font-size:.6875rem;font-weight:600;
  text-transform:uppercase;letter-spacing:.11em;color:#8fb4fb;background:rgba(77,132,245,.09);
  padding:.5rem 1rem;border-radius:.5rem;border:1px solid rgba(77,132,245,.26);
  backdrop-filter:blur(10px);box-shadow:inset 0 1px 0 rgba(255,255,255,.06)}

.grid{display:grid;gap:1.5rem}
@media(min-width:768px){.g-2{grid-template-columns:repeat(2,1fr)}.g-3{grid-template-columns:repeat(3,1fr)}}
@media(min-width:768px){.g-3-lg{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.g-3-lg{grid-template-columns:repeat(3,1fr)}}

/* thẻ: dựa vào nền + khoảng thở, viền chỉ là gợi ý mảnh */
.card{background:var(--paper);border:1px solid var(--line);border-radius:1.25rem;padding:1.75rem;
  box-shadow:var(--sh-xs);
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease),transform .3s var(--ease)}
.card:hover{border-color:var(--brand-edge);box-shadow:var(--sh-md);transform:translateY(-3px)}
.card-dark{background:linear-gradient(168deg,rgba(24,34,58,.62),rgba(13,20,36,.9));
  border:1px solid var(--d2);border-radius:1.25rem;padding:1.5rem;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.045)}
.card-soft{background:var(--bg);border:1px solid var(--line);border-radius:1.5rem;padding:1.75rem;
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease),transform .3s var(--ease)}
.card-soft:hover{border-color:var(--brand-edge);box-shadow:var(--sh-md);transform:translateY(-3px)}
@media(min-width:640px){.card-soft{padding:2rem}}

.icobox{width:46px;height:46px;border-radius:.9rem;display:flex;align-items:center;justify-content:center;flex:none;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease)}
.icobox-l{background:linear-gradient(150deg,var(--brand-wash),#fff);border:1px solid var(--brand-edge);color:var(--brand)}
.icobox-b{width:42px;height:42px;border-radius:.85rem;color:#fff;
  background:linear-gradient(150deg,var(--brand-lt),var(--brand));box-shadow:var(--sh-brand)}
.icobox-d{width:50px;height:50px;border-radius:1rem;color:#8fb4fb;
  background:linear-gradient(150deg,rgba(77,132,245,.16),rgba(77,132,245,.03));
  border:1px solid rgba(77,132,245,.28);box-shadow:0 0 26px rgba(27,86,224,.16),inset 0 1px 0 rgba(255,255,255,.08)}
.card:hover .icobox,.card-soft:hover .icobox,.cap:hover .icobox{transform:scale(1.07) rotate(-3deg)}

/* ============================================================
   HERO
   ============================================================ */
.hero{position:relative;overflow:hidden;padding:4rem 0 5rem;
  background:
    radial-gradient(ellipse 90% 55% at 50% -8%,rgba(27,86,224,.14),transparent 62%),
    radial-gradient(ellipse 60% 45% at 12% 42%,rgba(13,159,110,.06),transparent 60%),
    linear-gradient(to bottom,var(--bg-2),var(--bg) 58%)}
@media(min-width:768px){.hero{padding:5.5rem 0 7rem}}
.hero-inner{position:relative;z-index:var(--z-content);text-align:center;display:grid;gap:2.25rem}

.hero h1{font-family:var(--font-dp);font-size:2.375rem;font-weight:800;letter-spacing:-.045em;
  line-height:1.02;color:var(--ink);text-wrap:balance}
@media(max-width:400px){.hero h1{font-size:2.0625rem}}
@media(min-width:640px){.hero h1{font-size:3.75rem}}
@media(min-width:1024px){.hero h1{font-size:4.75rem}}
.grad{background:linear-gradient(100deg,#1b56e0 8%,#4d84f5 42%,#0a2a72 92%);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{font-size:1.0625rem;color:var(--muted);line-height:1.7;max-width:40rem;margin-inline:auto;text-wrap:pretty}
@media(min-width:640px){.hero-lead{font-size:1.25rem}}

/* kính thật: viền trong 1px + bóng trong mô phỏng khúc xạ mép */
.hero-panel{max-width:47rem;margin-inline:auto;text-align:left;
  background:linear-gradient(155deg,rgba(255,255,255,.9),rgba(255,255,255,.66));
  backdrop-filter:blur(18px) saturate(160%);-webkit-backdrop-filter:blur(18px) saturate(160%);
  padding:1.5rem;border-radius:1.25rem;border:1px solid rgba(255,255,255,.85);
  box-shadow:var(--sh-md),inset 0 1px 0 rgba(255,255,255,.95),inset 0 -1px 0 rgba(27,86,224,.06);
  display:grid;gap:1rem;font-size:.875rem;color:var(--ink-2);line-height:1.7;
  position:relative;overflow:hidden}
@media(min-width:640px){.hero-panel{padding:1.875rem 2rem}}
.hero-panel::before{content:"";position:absolute;top:0;left:12%;right:12%;height:1px;
  background:linear-gradient(90deg,transparent,var(--brand-lt),transparent);opacity:.65}
.hero-panel .row{display:flex;align-items:flex-start;gap:.75rem}
.hero-panel .ic{color:var(--brand);margin-top:.28rem}
.hero-panel strong{color:var(--ink);font-weight:600}
.hero-note{font-size:.8125rem;color:var(--muted-2);font-weight:500}

.trust-label{font-size:.6875rem;font-weight:600;text-transform:uppercase;letter-spacing:.14em;
  color:var(--faint);display:flex;align-items:center;justify-content:center;gap:.75rem;margin-bottom:1.25rem}
.trust-label span.line{width:2.5rem;height:1px;background:linear-gradient(90deg,transparent,var(--line-2))}
.trust-label span.line:last-child{background:linear-gradient(90deg,var(--line-2),transparent)}
.trust{display:grid;grid-template-columns:repeat(2,1fr);gap:.875rem;max-width:64rem;margin-inline:auto}
@media(min-width:768px){.trust{grid-template-columns:repeat(4,1fr);gap:1rem}}
.trust .t{background:linear-gradient(160deg,rgba(255,255,255,.94),rgba(255,255,255,.7));
  backdrop-filter:blur(12px);padding:1.25rem 1rem;border-radius:1rem;
  border:1px solid rgba(255,255,255,.9);text-align:center;display:grid;gap:.375rem;
  box-shadow:var(--sh-sm),inset 0 1px 0 #fff;
  transition:transform .32s var(--ease),box-shadow .32s var(--ease)}
.trust .t:hover{transform:translateY(-4px);box-shadow:var(--sh-md),inset 0 1px 0 #fff}
.trust .v{font-family:var(--font-dp);font-size:1.625rem;font-weight:800;color:var(--ink);
  letter-spacing:-.035em;font-variant-numeric:tabular-nums;line-height:1.1}
@media(min-width:640px){.trust .v{font-size:1.875rem}}
.trust .l{font-size:.75rem;font-weight:500;color:var(--muted)}
.trust .h{display:inline-block;justify-self:center;font-size:.625rem;font-weight:600;text-transform:uppercase;
  letter-spacing:.06em;color:var(--brand-deep);background:var(--brand-wash);border:1px solid var(--brand-edge);
  padding:.1875rem .5rem;border-radius:.375rem}

/* ============================================================
   KHỐI PHÁP LÝ (miễn trừ trách nhiệm — bắt buộc giữ)
   ============================================================ */
.legal{position:relative;background:var(--d0);color:#fff;padding:3rem 0;overflow:hidden}
.legal::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(ellipse 70% 100% at 50% 0%,rgba(27,86,224,.16),transparent 65%)}
.legal>.wrap{position:relative;z-index:var(--z-content)}
.legal-top{display:flex;flex-direction:column;align-items:flex-start;gap:1rem;
  border-bottom:1px solid var(--d2);padding-bottom:1.25rem;margin-bottom:1.5rem}
@media(min-width:640px){.legal-top{flex-direction:row;align-items:center;justify-content:space-between}}
.legal-top h2{font-family:var(--font-dp);font-size:.9375rem;font-weight:700;text-transform:uppercase;
  letter-spacing:.09em;color:#8fb4fb}
.legal-top p{font-size:.75rem;color:var(--faint);margin-top:.125rem}
.legal-tag{font-size:.6875rem;font-family:var(--mono);background:rgba(77,132,245,.1);color:#a9c4fb;
  padding:.375rem .875rem;border-radius:.5rem;border:1px solid rgba(77,132,245,.24);flex:none}
.legal-grid{display:grid;gap:1rem;font-size:.8125rem}
@media(min-width:768px){.legal-grid{grid-template-columns:repeat(3,1fr)}}
.legal-grid .card-dark{display:grid;gap:.625rem;align-content:start;padding:1.25rem;border-radius:1rem}
.legal-grid h3{display:flex;align-items:center;gap:.5rem;font-size:.8125rem;font-weight:600;letter-spacing:-.01em}
.legal-grid p,.legal-grid li{color:#b9c6d9;line-height:1.7}
.legal-grid ul{list-style:none;display:grid;gap:.5rem}
.legal-grid li{position:relative;padding-left:1rem}
.legal-grid li::before{content:"";position:absolute;left:0;top:.62em;width:4px;height:4px;border-radius:9999px;
  background:var(--warn-lt);opacity:.85}
.legal-grid strong{color:#eaf1fb}
.chip{background:rgba(77,132,245,.1);color:#a9c4fb;border:1px solid rgba(77,132,245,.24);
  padding:.3125rem .625rem;border-radius:.375rem;font-size:.6875rem;line-height:1.4}
.chips{display:flex;flex-wrap:wrap;gap:.4375rem;padding-top:.25rem}

/* ============================================================
   NĂNG LỰC (vùng tối)
   ============================================================ */
.cap{position:relative;padding:1.75rem;border-radius:1.5rem;
  background:linear-gradient(168deg,rgba(24,34,58,.68),rgba(13,20,36,.92));
  border:1px solid var(--d2);display:flex;flex-direction:column;justify-content:space-between;gap:1.5rem;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
  transition:border-color .35s var(--ease),box-shadow .35s var(--ease),transform .35s var(--ease)}
@media(min-width:640px){.cap{padding:2.25rem}}
.cap:hover{border-color:rgba(77,132,245,.42);transform:translateY(-4px);
  box-shadow:0 30px 60px -28px rgba(0,0,0,.9),0 0 44px -18px rgba(27,86,224,.5),inset 0 1px 0 rgba(255,255,255,.08)}
.cap>*{position:relative;z-index:3}
.cap-top{display:flex;align-items:center;justify-content:space-between}
/* số thứ tự thành chữ số bóng cỡ lớn thay vì viên thuốc nhỏ */
.cap-num{font-family:var(--font-dp);font-size:2.75rem;font-weight:800;line-height:1;
  letter-spacing:-.05em;color:transparent;-webkit-text-stroke:1px rgba(77,132,245,.34);
  font-variant-numeric:tabular-nums;transition:-webkit-text-stroke-color .35s var(--ease)}
.cap:hover .cap-num{-webkit-text-stroke-color:rgba(77,132,245,.7)}
.cap h3{font-family:var(--font-dp);font-size:1.1875rem;font-weight:700;color:#fff;letter-spacing:-.028em;
  line-height:1.22;text-wrap:balance}
@media(min-width:640px){.cap h3{font-size:1.375rem}}
.cap p{font-size:.875rem;color:#a9b8ce;line-height:1.72}
.cap ul{padding-top:1.25rem;border-top:1px solid var(--d2);display:grid;gap:.625rem}
.cap li{display:flex;align-items:center;gap:.625rem;font-size:.8125rem;color:#c2cee0}
.cap li .ic{color:var(--brand-lt)}

/* ============================================================
   VẤN ĐỀ / GIẢI PHÁP
   ============================================================ */
.ps{display:grid;grid-template-rows:auto 1fr 1fr;gap:1rem;height:100%;padding:1.75rem;border-radius:1.5rem}
@media(min-width:640px){.ps{padding:2rem}}
.ps-head{display:flex;align-items:center;gap:1rem;border-bottom:1px solid var(--line);padding-bottom:1.125rem}
.ps-head h3{font-family:var(--font-dp);font-size:1.0625rem;font-weight:700;color:var(--ink);
  letter-spacing:-.025em;line-height:1.25;text-wrap:balance}
@media(min-width:640px){.ps-head h3{font-size:1.1875rem}}
.ps-box{padding:1.125rem;border-radius:1rem;display:grid;gap:.5rem;align-content:start}
.ps-bad{background:linear-gradient(160deg,rgba(225,29,72,.05),rgba(225,29,72,.02));border:1px solid rgba(225,29,72,.16)}
.ps-good{background:linear-gradient(160deg,var(--brand-wash),rgba(27,86,224,.03));border:1px solid var(--brand-edge)}
.ps-box .t{display:flex;align-items:center;gap:.5rem;font-weight:600;font-size:.8125rem;letter-spacing:-.005em}
.ps-bad .t{color:#9f1239}.ps-bad .ic{color:var(--warn)}
.ps-good .t{color:var(--brand-deep)}.ps-good .ic{color:var(--brand)}
.ps-box p{font-size:.875rem;color:var(--muted);line-height:1.72}

/* ============================================================
   CHẾ ĐỘ LÀM VIỆC
   ============================================================ */
.modes{display:grid;gap:1.5rem;max-width:74rem;margin-inline:auto;align-items:start}
@media(min-width:1024px){.modes{grid-template-columns:4.5fr 7.5fr;gap:2rem}}
.modes-menu{display:flex;flex-direction:column;gap:.375rem;padding:.75rem;
  background:linear-gradient(170deg,var(--bg-2),var(--bg));border-radius:1.5rem;border:1px solid var(--line);
  box-shadow:var(--sh-xs)}
.modes-menu .lbl{font-size:.625rem;font-weight:600;text-transform:uppercase;letter-spacing:.13em;
  color:var(--faint);padding:.625rem .875rem .375rem}
.mode-tab{width:100%;padding:.8125rem 1rem;border-radius:1rem;font-weight:500;font-size:.875rem;
  display:flex;align-items:center;justify-content:space-between;text-align:left;gap:.5rem;
  color:var(--ink-2);position:relative;
  transition:background .28s var(--ease),color .28s var(--ease),transform .18s var(--ease),box-shadow .28s var(--ease)}
.mode-tab:hover{background:rgba(255,255,255,.85);color:var(--ink)}
.mode-tab:active{transform:scale(.985)}
.mode-tab .mi{width:34px;height:34px;border-radius:.75rem;display:flex;align-items:center;
  justify-content:center;flex:none;background:rgba(255,255,255,.9);border:1px solid var(--line);
  color:var(--muted);transition:background .28s var(--ease),color .28s var(--ease),border-color .28s var(--ease)}
.mode-tab .nm{display:flex;align-items:center;gap:.75rem;min-width:0}
.mode-tab .nm span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mode-tab[aria-selected=true]{background:linear-gradient(130deg,var(--brand),var(--brand-h));color:#fff;
  font-weight:600;box-shadow:var(--sh-brand)}
.mode-tab[aria-selected=true] .mi{background:rgba(255,255,255,.18);color:#fff;border-color:rgba(255,255,255,.24)}
.mode-tab[aria-selected=true] .act{width:7px;height:7px;border-radius:9999px;background:#fff;flex:none}
.soon{font-size:.5625rem;background:rgba(217,119,6,.14);color:#b45309;border:1px solid rgba(217,119,6,.3);
  padding:.1875rem .4375rem;border-radius:.375rem;font-family:var(--mono);text-transform:uppercase;
  font-weight:700;flex:none;letter-spacing:.04em}
.mode-tab[aria-selected=true] .soon{background:rgba(255,255,255,.2);color:#fff;border-color:rgba(255,255,255,.3)}

.mode-panel{position:relative;overflow:hidden;
  background:linear-gradient(160deg,#111a2e,var(--d0) 62%);border-radius:1.75rem;padding:1.75rem;color:#fff;
  border:1px solid var(--d2);box-shadow:var(--sh-lg),inset 0 1px 0 rgba(255,255,255,.06);
  display:grid;gap:1.5rem;align-content:start}
@media(min-width:640px){.mode-panel{padding:2.25rem}}
@media(min-width:768px){.mode-panel{padding:2.75rem}}
.mode-panel[hidden]{display:none}
.mode-panel::after{content:"";position:absolute;top:-30%;right:-15%;width:420px;height:420px;border-radius:9999px;
  background:radial-gradient(circle,rgba(27,86,224,.26),transparent 68%);pointer-events:none;filter:blur(20px)}
.mode-panel>*{position:relative;z-index:1}
.mode-panel.swap{animation:panelIn .45s var(--ease-out)}
@keyframes panelIn{from{opacity:0;transform:translate3d(0,10px,0)}to{opacity:1;transform:none}}
.mode-tags{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap}
.mode-tag{padding:.4375rem .9375rem;border-radius:.5rem;background:rgba(77,132,245,.12);
  border:1px solid rgba(77,132,245,.26);color:#a9c4fb;font-size:.6875rem;font-family:var(--mono)}
.mode-tag.team{background:rgba(13,159,110,.12);border-color:rgba(13,159,110,.28);color:#6ee7b7}
.mode-panel h3{font-family:var(--font-dp);font-size:1.625rem;font-weight:800;color:#fff;letter-spacing:-.04em;
  display:flex;align-items:center;gap:.875rem;line-height:1.1}
@media(min-width:640px){.mode-panel h3{font-size:2.125rem}}
.mode-panel h3 .mi{width:48px;height:48px;border-radius:.9rem;color:#fff;
  background:linear-gradient(150deg,var(--brand-lt),var(--brand));
  display:flex;align-items:center;justify-content:center;flex:none;box-shadow:var(--sh-brand)}
.mode-panel>p{font-size:.9375rem;color:#a9b8ce;line-height:1.75;max-width:44rem}
@media(min-width:640px){.mode-panel>p{font-size:1.0625rem}}
.mode-feat-lbl{font-size:.625rem;font-weight:600;text-transform:uppercase;letter-spacing:.13em;
  color:var(--faint);display:block;margin-bottom:.875rem}
.mode-feats{display:grid;gap:.75rem;font-size:.8125rem;color:#d3dcea}
@media(min-width:640px){.mode-feats{grid-template-columns:1fr 1fr}}
.mode-feats li{display:flex;align-items:center;gap:.75rem;background:rgba(24,34,58,.6);padding:.9375rem;
  border-radius:.875rem;border:1px solid rgba(38,51,79,.9);min-height:60px;line-height:1.45;
  transition:border-color .28s var(--ease),background .28s var(--ease)}
.mode-feats li:hover{border-color:rgba(77,132,245,.36);background:rgba(24,34,58,.9)}
.mode-feats .ic{color:var(--brand-lt)}

/* ============================================================
   NỀN TẢNG DỮ LIỆU
   ============================================================ */
.kb{display:grid;gap:1.5rem;max-width:58rem;margin-inline:auto}
@media(min-width:768px){.kb{grid-template-columns:1fr 1fr}}
.kb .card-dark{display:flex;flex-direction:column;align-items:center;text-align:center;gap:.875rem;
  padding:2.5rem 2rem;border-radius:1.75rem;position:relative;
  transition:border-color .35s var(--ease),transform .35s var(--ease),box-shadow .35s var(--ease)}
@media(min-width:640px){.kb .card-dark{padding:3rem 2.5rem}}
.kb .card-dark:hover{border-color:rgba(77,132,245,.42);transform:translateY(-4px);
  box-shadow:0 30px 60px -28px rgba(0,0,0,.9),0 0 44px -18px rgba(27,86,224,.45)}
.kb .card-dark>*{position:relative;z-index:3}
.kb .n{font-family:var(--font-dp);font-size:2.75rem;font-weight:800;letter-spacing:-.05em;line-height:1;
  font-variant-numeric:tabular-nums;
  background:linear-gradient(120deg,#fff 12%,#8fb4fb 55%,#4d84f5 95%);
  -webkit-background-clip:text;background-clip:text;color:transparent}
@media(min-width:640px){.kb .n{font-size:3.75rem}}
.kb .t{font-size:1.0625rem;font-weight:600;color:#eaf1fb;letter-spacing:-.01em}
.kb p{font-size:.8125rem;color:#95a5bd;line-height:1.7;max-width:22rem}

/* ============================================================
   QUY TRÌNH
   ============================================================ */
.step{background:var(--paper);border-radius:1.5rem;padding:1.75rem;border:1px solid var(--line);
  display:grid;gap:1rem;align-content:start;box-shadow:var(--sh-xs);position:relative;
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease),transform .3s var(--ease)}
.step:hover{border-color:var(--brand-edge);box-shadow:var(--sh-md);transform:translateY(-3px)}
.step>*{position:relative;z-index:3}
.step-top{display:flex;align-items:center;justify-content:space-between}
.step-num{font-size:.625rem;font-family:var(--mono);font-weight:700;color:var(--brand-deep);
  background:var(--brand-wash);border:1px solid var(--brand-edge);padding:.3125rem .625rem;
  border-radius:.375rem;letter-spacing:.08em}
.step h3{font-family:var(--font-dp);font-size:1.1875rem;font-weight:700;color:var(--ink);
  letter-spacing:-.028em;line-height:1.2;text-wrap:balance}
.step p{font-size:.875rem;color:var(--muted);line-height:1.72}

.principles{position:relative;overflow:hidden;
  background:linear-gradient(160deg,#111a2e,var(--d0) 65%);border-radius:1.75rem;padding:1.75rem;color:#fff;
  display:grid;gap:1.25rem;margin-top:3rem;border:1px solid var(--d2);
  box-shadow:var(--sh-lg),inset 0 1px 0 rgba(255,255,255,.06)}
@media(min-width:640px){.principles{padding:2.5rem}}
.principles::after{content:"";position:absolute;top:-40%;left:20%;width:520px;height:420px;
  background:radial-gradient(circle,rgba(27,86,224,.2),transparent 70%);pointer-events:none;filter:blur(20px)}
.principles>*{position:relative;z-index:1}
.principles>h3{font-family:var(--font-dp);font-size:1.125rem;font-weight:700;color:#8fb4fb;
  display:flex;align-items:center;gap:.625rem;letter-spacing:-.02em}
.principles-grid{display:grid;gap:1rem;font-size:.8125rem}
@media(min-width:768px){.principles-grid{grid-template-columns:repeat(3,1fr)}}
.principles .card-dark{padding:1.25rem;border-radius:1rem;display:grid;gap:.5rem;align-content:start;
  transition:border-color .28s var(--ease)}
.principles .card-dark:hover{border-color:rgba(77,132,245,.34)}
.principles .card-dark .t{display:flex;align-items:center;gap:.5rem;font-weight:600;color:#fff;letter-spacing:-.01em}
.principles .card-dark p{color:#95a5bd;line-height:1.7}

/* ============================================================
   6 LÝ DO — lưới bento, cố ý phá thế 3 cột đều
   ============================================================ */
.reason{display:grid;gap:.875rem;align-content:start;height:100%;padding:1.75rem;position:relative;overflow:hidden}
.reason>*{position:relative;z-index:3}
.reason-top{display:flex;align-items:center;justify-content:space-between;
  border-bottom:1px solid var(--line);padding-bottom:.875rem}
.reason-num{font-family:var(--font-dp);font-size:1.75rem;font-weight:800;color:var(--brand);
  letter-spacing:-.05em;font-variant-numeric:tabular-nums;line-height:1}
.reason h3{font-family:var(--font-dp);font-size:1.0625rem;font-weight:700;color:var(--ink);
  letter-spacing:-.025em;line-height:1.25;text-wrap:balance}
.reason p{font-size:.875rem;color:var(--muted);line-height:1.72;max-width:38rem}

@media(min-width:1024px){
  #reasons .grid{grid-template-columns:repeat(3,1fr);gap:1.25rem}
  #reasons .reason:nth-child(1){grid-column:span 2}
  #reasons .reason:nth-child(6){grid-column:span 3}
  #reasons .reason:nth-child(1),#reasons .reason:nth-child(6){
    background:linear-gradient(150deg,var(--brand-wash),var(--paper) 62%);
    border-color:var(--brand-edge)}
  #reasons .reason:nth-child(1) .reason-num,#reasons .reason:nth-child(6) .reason-num{font-size:2.5rem}
  #reasons .reason:nth-child(1) h3,#reasons .reason:nth-child(6) h3{font-size:1.4375rem}
  #reasons .reason:nth-child(6){display:grid;grid-template-columns:auto 1fr;align-items:center;
    column-gap:2rem;row-gap:.5rem}
  #reasons .reason:nth-child(6) .reason-top{border-bottom:0;border-right:1px solid var(--brand-edge);
    padding:0 2rem 0 0;grid-row:span 2;flex-direction:column;gap:.75rem;align-self:stretch;justify-content:center}
}

/* ============================================================
   BẢO MẬT
   ============================================================ */
.sec-grid{display:grid;gap:1.5rem}
@media(min-width:768px){.sec-grid{grid-template-columns:1fr 1fr;gap:1.75rem}}
.sbox{display:grid;gap:1.125rem;align-content:start;position:relative;overflow:hidden}
.sbox>*{position:relative;z-index:3}
.sbox-head{display:flex;align-items:center;gap:.875rem}
.sbox-head h3{font-family:var(--font-dp);font-size:1.1875rem;font-weight:700;color:var(--ink);letter-spacing:-.028em}
.sbox ul{display:grid;gap:.875rem;font-size:.875rem;color:var(--ink-2)}
.sbox li{display:flex;align-items:flex-start;gap:.75rem;line-height:1.7}
.sbox li .ic{color:var(--brand);margin-top:.28rem}
.sbox strong{font-weight:600;color:var(--ink)}

/* ============================================================
   BẢNG GIÁ
   ============================================================ */
.plans{display:grid;gap:1.75rem}
@media(min-width:768px){.plans{grid-template-columns:repeat(3,1fr);gap:1.5rem;align-items:stretch}}
@media(min-width:1024px){.plans{gap:1.75rem}}
.plan{background:var(--paper);border-radius:1.75rem;padding:1.875rem;border:1px solid var(--line);
  display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden;
  box-shadow:var(--sh-xs);
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease),transform .3s var(--ease)}
@media(min-width:640px){.plan{padding:2.25rem}}
.plan>*{position:relative;z-index:3}
.plan:hover{border-color:var(--brand-edge);box-shadow:var(--sh-md);transform:translateY(-3px)}
/* gói khuyên dùng nổi bằng MÀU và trọng lượng, không phải bằng chiều cao */
.plan.hl{border-color:transparent;color:#fff;
  background:linear-gradient(165deg,#16233d 0%,var(--d0) 58%);
  box-shadow:var(--sh-lg),inset 0 1px 0 rgba(255,255,255,.08)}
.plan.hl::after{content:"";position:absolute;top:-35%;left:-10%;width:420px;height:380px;
  background:radial-gradient(circle,rgba(27,86,224,.3),transparent 68%);pointer-events:none;filter:blur(16px)}
.plan.hl:hover{transform:translateY(-5px);box-shadow:0 36px 72px -28px rgba(11,42,114,.55)}
.plan-flag{position:absolute;top:1.25rem;right:1.25rem;background:linear-gradient(130deg,var(--brand-lt),var(--brand));
  color:#fff;font-size:.5625rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;
  padding:.375rem .75rem;border-radius:.375rem;display:flex;align-items:center;gap:.3125rem;
  box-shadow:var(--sh-brand);white-space:nowrap;z-index:4}
.plan h3{font-family:var(--font-dp);font-size:1.25rem;font-weight:700;color:var(--ink);letter-spacing:-.03em}
.plan.hl h3{color:#fff}
.plan .period{font-size:.75rem;color:var(--muted-2);margin-top:.25rem}
.plan.hl .period{color:#95a5bd}
/* khối giá cao bằng nhau ⇒ danh sách 3 cột bắt đầu cùng một cao độ */
.plan-price{border-bottom:1px solid var(--line);padding-bottom:1.25rem;margin:1.5rem 0;min-height:8.25rem;
  display:flex;flex-direction:column;justify-content:flex-end;gap:.75rem}
.plan.hl .plan-price{border-bottom-color:var(--d2)}
.plan-price .row{display:flex;align-items:baseline;gap:.375rem;flex-wrap:wrap}
.plan-price .p{font-family:var(--font-dp);font-size:2.25rem;font-weight:800;color:var(--ink);
  letter-spacing:-.05em;font-variant-numeric:tabular-nums;line-height:1}
@media(min-width:640px){.plan-price .p{font-size:2.625rem}}
.plan.hl .plan-price .p{background:linear-gradient(120deg,#fff,#8fb4fb);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.plan-price .u{font-size:.75rem;font-weight:500;color:var(--muted-2)}
.plan-vat{margin-top:.375rem;font-size:.75rem;font-weight:500;color:var(--muted-2)}
.plan.hl .plan-vat{color:#95a5bd}
.plan.hl .plan-price .u{color:#95a5bd}
.plan-quota{font-size:.75rem;font-weight:600;color:var(--brand-deep);background:var(--brand-wash);
  padding:.375rem .75rem;border-radius:.5rem;display:inline-block;border:1px solid var(--brand-edge);
  align-self:flex-start}
.plan.hl .plan-quota{color:#a9c4fb;background:rgba(77,132,245,.12);border-color:rgba(77,132,245,.26)}
.plan ul{display:grid;gap:.8125rem;font-size:.875rem;color:var(--ink-2)}
.plan.hl ul{color:#c2cee0}
.plan li{display:flex;align-items:flex-start;gap:.6875rem;line-height:1.55}
.plan li .ic{margin-top:.22rem;color:var(--brand)}
.plan.hl li .ic{color:var(--brand-lt)}
.plan li.off{color:var(--faint)}
.plan li.off span{text-decoration:line-through;text-decoration-thickness:1px}
.plan li.off .ic{color:var(--line-2)}
.plan.hl li.off{color:#5c6b85}
.plan.hl li.off .ic{color:#3b4a68}
/* nút ghim đáy ⇒ 3 nút thẳng hàng dù nội dung dài ngắn khác nhau */
.plan-foot{padding-top:2rem;display:grid;gap:.75rem;margin-top:auto}
.plan-foot .btn{width:100%;padding:.9375rem}
.plan-foot .note{font-size:.6875rem;text-align:center;color:var(--muted-2)}
.plan.hl .plan-foot .note{color:#95a5bd}

/* ============================================================
   NHÓM KHÁCH HÀNG
   ============================================================ */
.aud{display:grid;gap:.875rem;align-content:start;height:100%;padding:1.75rem;border-radius:1.5rem;
  position:relative;overflow:hidden}
.aud>*{position:relative;z-index:3}
.aud-top{display:flex;align-items:center;justify-content:space-between;gap:.75rem}
.aud-mode{font-size:.625rem;font-family:var(--mono);font-weight:600;background:var(--brand-wash);
  color:var(--brand-deep);border:1px solid var(--brand-edge);padding:.25rem .5rem;border-radius:.375rem;
  text-align:right;line-height:1.35}
.aud h3{font-family:var(--font-dp);font-size:1.0625rem;font-weight:700;color:var(--ink);
  letter-spacing:-.025em;line-height:1.25;text-wrap:balance}
.aud p{font-size:.875rem;color:var(--muted);line-height:1.72}
.aud-ico{width:36px;height:36px;border-radius:.75rem;color:#fff;
  background:linear-gradient(150deg,var(--brand-lt),var(--brand));box-shadow:var(--sh-brand);
  display:flex;align-items:center;justify-content:center;flex:none;
  transition:transform .35s var(--ease)}
.card-soft:hover .aud-ico{transform:scale(1.08) rotate(-4deg)}

/* ============================================================
   FAQ
   ============================================================ */
.faq{display:grid;gap:.75rem}
.faq details{background:var(--paper);border:1px solid var(--line);border-radius:1.25rem;
  overflow:hidden;box-shadow:var(--sh-xs);
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease)}
.faq details:hover{border-color:var(--line-2)}
.faq details[open]{border-color:var(--brand-edge);box-shadow:var(--sh-md)}
.faq summary{padding:1.375rem 1.5rem;font-weight:600;font-size:.9375rem;color:var(--ink);display:flex;
  align-items:center;justify-content:space-between;gap:1rem;cursor:pointer;list-style:none;
  letter-spacing:-.015em;transition:color .25s var(--ease)}
@media(min-width:640px){.faq summary{font-size:1.0625rem}}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--brand)}
.faq summary .q{display:flex;align-items:center;gap:.875rem;text-align:left}
.faq summary .qi{padding:.4375rem;border-radius:.625rem;background:var(--bg);color:var(--muted-2);
  display:flex;flex:none;border:1px solid var(--line);
  transition:background .28s var(--ease),color .28s var(--ease),border-color .28s var(--ease)}
.faq details[open] summary .qi{background:linear-gradient(150deg,var(--brand-lt),var(--brand));color:#fff;
  border-color:transparent;box-shadow:var(--sh-brand)}
.faq details[open] summary .q>span:last-child{color:var(--brand-deep)}
.faq summary .chev{padding:.3125rem;border-radius:9999px;background:var(--bg);color:var(--muted-2);display:flex;
  flex:none;transition:transform .35s var(--ease),background .28s var(--ease),color .28s var(--ease)}
.faq details[open] summary .chev{transform:rotate(180deg);background:var(--brand-wash);color:var(--brand)}
.faq .a{padding:0 1.5rem 1.5rem;animation:faqIn .4s var(--ease-out)}
@keyframes faqIn{from{opacity:0;transform:translate3d(0,-6px,0)}to{opacity:1;transform:none}}
.faq .a p{padding-left:2.75rem;font-size:.9375rem;color:var(--muted);line-height:1.78;
  border-left:2px solid var(--brand-edge);margin-left:.25rem;padding-block:.125rem;text-wrap:pretty}

/* ============================================================
   FOOTER
   ============================================================ */
.ftr{position:relative;background:var(--d0);color:#95a5bd;font-size:.8125rem;overflow:hidden}
.ftr::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(ellipse 60% 80% at 12% 0%,rgba(27,86,224,.13),transparent 62%)}
.ftr>*{position:relative;z-index:1}
.ftr-cols{display:grid;gap:2.5rem;padding-block:4rem 3rem}
@media(min-width:768px){.ftr-cols{grid-template-columns:1.5fr 1fr 1fr}}
.ftr-cols h4{font-family:var(--font-dp);font-weight:700;color:#fff;text-transform:uppercase;
  font-size:.6875rem;letter-spacing:.13em;margin-bottom:1rem}
.ftr-brand{display:flex;align-items:center;gap:.625rem;margin-bottom:1.125rem}
.ftr-brand img{height:51px;width:auto;object-fit:contain}
.ftr-brand span{font-family:var(--font-dp);font-weight:700;color:#fff;font-size:1.0625rem;letter-spacing:-.025em}
.ftr-cols p{color:#95a5bd;line-height:1.75}
@media(min-width:768px){.ftr-cols p{max-width:34ch}}  /* mobile để chữ chạy hết bề ngang */
.ftr-cols .infra{font-size:.6875rem;color:#5c6b85;font-family:var(--mono);margin-top:1.25rem;
  padding-top:1rem;border-top:1px solid var(--d2);max-width:none}
.ftr-links{display:grid;gap:.625rem}
.ftr-links a{display:inline-flex;align-items:center;gap:.4375rem;width:fit-content;
  transition:color .25s var(--ease),transform .25s var(--ease)}
.ftr-links a:hover{color:#a9c4fb;transform:translateX(3px)}
.ftr-links .ic{color:#3b4a68;transition:color .25s var(--ease)}
.ftr-links a:hover .ic{color:var(--brand-lt)}
.ftr-contact{display:grid;gap:.75rem;color:#95a5bd}
.ftr-contact p{display:flex;align-items:flex-start;gap:.625rem}
.ftr-contact a{transition:color .25s var(--ease)}
.ftr-contact a:hover{color:#a9c4fb}
.ftr-contact .ic{color:var(--brand-lt);margin-top:.22rem}

.ftr-legal{background:var(--d1);border-top:1px solid var(--d2);padding:1.75rem 0}
.ftr-legal .inner{display:flex;flex-direction:column;align-items:flex-start;gap:1.125rem;font-size:.8125rem}
@media(min-width:768px){.ftr-legal .inner{flex-direction:row;align-items:flex-start}}
.ftr-legal .ico{width:36px;height:36px;border-radius:.75rem;background:rgba(225,29,72,.1);color:var(--warn-lt);
  border:1px solid rgba(225,29,72,.24);display:flex;align-items:center;justify-content:center;flex:none}
.ftr-legal .t{font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:#fda4af;
  display:block;margin-bottom:.3125rem;font-size:.6875rem}
.ftr-legal p{color:#b9c6d9;line-height:1.75;max-width:none}
.ftr-legal strong{color:#fff;font-weight:600}

.ftr-copy{background:var(--d0);padding:1.25rem;border-top:1px solid var(--d2);text-align:center;
  font-size:.6875rem;color:#5c6b85}

.skip{position:absolute;left:-9999px;top:0}
.skip:focus{left:.75rem;top:.75rem;z-index:var(--z-skip);background:var(--brand);color:#fff;
  padding:.75rem 1.25rem;border-radius:.75rem;box-shadow:var(--sh-brand)}

/* ============================================================
   TRANG PHÁP LÝ (dieu-khoan-su-dung / chinh-sach-bao-mat /
   xu-ly-du-lieu-ca-nhan / an-toan-lam-sang)
   ============================================================ */
.doc-hero{position:relative;overflow:hidden;padding:3rem 0 3.25rem;background:var(--bg)}
@media(min-width:768px){.doc-hero{padding:4.5rem 0 4rem}}
.doc-hero-inner{position:relative;z-index:var(--z-content);max-width:58rem;margin-inline:auto;display:grid;gap:1.5rem}

.crumb{display:flex;align-items:center;gap:.375rem;font-size:.75rem;font-weight:500;color:var(--muted-2)}
.crumb a{transition:color .25s var(--ease)}
.crumb a:hover{color:var(--brand)}
.crumb .ic{color:var(--line-2)}

.doc-head{display:grid;gap:1rem;max-width:46rem}
.doc-head h1{font-family:var(--font-dp);font-size:2rem;font-weight:800;letter-spacing:-.035em;
  line-height:1.08;color:var(--ink);text-wrap:balance}
@media(min-width:640px){.doc-head h1{font-size:2.875rem}}

/* điều hướng sang 3 văn bản còn lại */
.doc-links{display:grid;gap:.625rem;font-size:.8125rem;font-weight:500}
@media(min-width:768px){.doc-links{grid-template-columns:repeat(3,1fr)}}
.doc-links a{display:flex;align-items:center;gap:.5rem;padding:.75rem .875rem;
  background:rgba(255,255,255,.72);border:1px solid var(--line);border-radius:.875rem;color:var(--ink-2);
  backdrop-filter:blur(8px);box-shadow:var(--sh-xs);
  transition:background .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease)}
.doc-links a:hover{background:#fff;border-color:var(--brand-edge);color:var(--brand-deep);
  transform:translateY(-2px);box-shadow:var(--sh-sm)}
.doc-links a span{flex:1}
.doc-links .ic{color:var(--brand);flex:none}
.doc-links .ic-end{color:var(--faint)}

.doc-main{min-height:calc(100vh - 34rem)}
.doc{font-size:.9375rem;line-height:1.8;color:var(--ink-2)}
@media(min-width:640px){.doc{font-size:1rem}}
.doc h2{font-family:var(--font-dp);font-size:1.375rem;font-weight:700;letter-spacing:-.02em;
  line-height:1.25;color:var(--ink);margin:2.5rem 0 .875rem}
.doc h3{font-size:1.0625rem;font-weight:600;color:var(--ink);margin:1.75rem 0 .625rem}
.doc>:first-child{margin-top:0}
.doc p{margin:0 0 1rem}
.doc ul,.doc ol{margin:0 0 1rem;padding-left:1.375rem;list-style:revert}
.doc li{margin:.375rem 0}
.doc li::marker{color:var(--muted-2)}
.doc strong{color:var(--ink);font-weight:600}
.doc a{color:var(--brand);text-decoration:underline;text-underline-offset:.2em}
.doc a:hover{color:var(--brand-h)}
.doc a.btn{color:#fff;text-decoration:none}   /* .doc a{color:brand} nuốt mất chữ nút */
.doc hr{margin:2.5rem 0;border:0;border-top:1px solid var(--line)}
.doc table{width:100%;border-collapse:collapse;font-size:.875rem}
.doc .tbl{margin:1.5rem 0;overflow-x:auto;border:1px solid var(--line);border-radius:1rem;background:var(--paper)}
.doc th,.doc td{padding:.875rem 1.125rem;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
.doc th{background:var(--bg);font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--ink)}
.doc tr:last-child td{border-bottom:0}

/* chỗ chờ bộ phận pháp lý gửi nội dung */
.doc-empty{display:grid;gap:.75rem;justify-items:center;text-align:center;
  padding:4rem 1.5rem;border:1.5px dashed var(--line-2);border-radius:1.5rem;background:var(--bg)}
.doc-empty .icobox{margin-bottom:.25rem}
.doc-empty h2{font-family:var(--font-dp);font-size:1.125rem;font-weight:700;color:var(--ink);margin:0}
.doc-empty p{max-width:34rem;color:var(--muted);font-size:.9375rem;margin:0}