/* ================= TOKENS (DESIGN_SYSTEM.md §15) ================= */
:root{
  --brand-blue:#0167c0; --brand-navy:#052e63; --brand-green:#029e63; --brand-red:#de232a; --brand-yellow:#efb717;
  --blue-50:#eef6fd; --blue-100:#d6e9f9; --blue-200:#acd2f2; --blue-300:#74b2e6; --blue-400:#3a8ed6;
  --blue-500:#0167c0; --blue-600:#0157a6; --blue-700:#034a8c; --blue-800:#043c76; --blue-900:#052e63;
  --green-50:#e7f7ef; --green-100:#c3ebd8; --green-500:#029e63; --green-600:#028a57; --green-700:#027a4d;
  --red-50:#fdeced; --red-100:#f9cdcf; --red-500:#de232a; --red-600:#c51d23; --red-700:#a3181d;
  --yellow-50:#fef8e7; --yellow-100:#fcedbb; --yellow-500:#efb717; --yellow-600:#d49f0a; --yellow-700:#8a6400;
  --gray-25:#f6f9fd; --gray-50:#f0f4f9; --gray-100:#e4eaf2; --gray-200:#d2dbe7; --gray-300:#b3c0d1;
  --gray-400:#8593a8; --gray-500:#5d6b82; --gray-600:#46546b; --gray-700:#333f54;

  --color-heading:var(--blue-900); --color-text:var(--gray-600); --color-muted:var(--gray-500);

  --grad-brand:linear-gradient(135deg,#0167c0 0%,#052e63 100%);
  --grad-sky:linear-gradient(135deg,#3a8ed6 0%,#0167c0 100%);
  --grad-number:linear-gradient(180deg,#3a8ed6 0%,#0167c0 100%);
  --grad-hero:linear-gradient(110deg,rgba(238,246,253,.96) 0%,rgba(238,246,253,.80) 45%,rgba(238,246,253,0) 75%);

  --font-heading:"Public Sans","Segoe UI",system-ui,-apple-system,Arial,sans-serif;
  --font-body:"Manrope","Segoe UI",system-ui,-apple-system,Arial,sans-serif;
  --fs-display:clamp(2.5rem,1.6rem + 3.6vw,4rem);
  --fs-h2:clamp(1.75rem,1.4rem + 1.4vw,2.5rem);
  --fs-h3:clamp(1.375rem,1.2rem + .7vw,1.75rem);

  --container:1200px; --gutter:24px; --section-y:clamp(64px,8vw,96px);
  --header-h:84px; --topbar-h:40px;

  --radius-md:12px; --radius-lg:16px; --radius-xl:24px; --radius-2xl:32px; --radius-pill:999px;

  --shadow-xs:0 1px 2px rgba(5,46,99,.06);
  --shadow-sm:0 2px 8px rgba(5,46,99,.06),0 1px 2px rgba(5,46,99,.04);
  --shadow-md:0 8px 24px rgba(5,46,99,.08),0 2px 6px rgba(5,46,99,.04);
  --shadow-lg:0 18px 44px rgba(5,46,99,.12),0 4px 12px rgba(5,46,99,.05);
  --shadow-btn:0 6px 16px rgba(1,103,192,.28);
  --shadow-btn-red:0 6px 16px rgba(222,35,42,.28);
  --ring:0 0 0 4px rgba(1,103,192,.22);

  --ease-out:cubic-bezier(.22,.61,.36,1);
  --dur-fast:150ms; --dur-base:250ms; --dur-slow:400ms;
}
@media (max-width:767px){:root{--gutter:16px;--header-h:68px}}

/* ================= BASE ================= */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:#fff;color:var(--color-text);font:400 16px/1.65 var(--font-body);-webkit-font-smoothing:antialiased;overflow-x:hidden}
h1,h2,h3,h4,h5{font-family:var(--font-heading);color:var(--color-heading);margin:0}
p{margin:0}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:none;box-shadow:var(--ring);border-radius:8px}
.ic{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;flex:none}
.ic-fill{fill:currentColor;stroke:none}
.container{max-width:calc(var(--container) + var(--gutter)*2);margin:0 auto;padding:0 var(--gutter)}
.section{padding:var(--section-y) 0}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* Typography */
.t-display{font:800 var(--fs-display)/1.1 var(--font-heading);letter-spacing:-.025em}
.t-h2{font:700 var(--fs-h2)/1.2 var(--font-heading);letter-spacing:-.02em}
.t-h3{font:700 var(--fs-h3)/1.3 var(--font-heading);letter-spacing:-.01em}
.t-h5{font:600 18px/1.45 var(--font-heading)}
.t-lead{font:500 18px/1.7 var(--font-body)}
.t-accent{color:var(--brand-blue)}
.t-number{font-family:var(--font-heading);font-weight:800;line-height:1;letter-spacing:-.03em;background:var(--grad-number);-webkit-background-clip:text;background-clip:text;color:transparent}

/* Eyebrow */
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px 6px 10px;border-radius:var(--radius-pill);background:var(--blue-50);color:var(--blue-500);font:700 13px/1.4 var(--font-body)}
.eyebrow .ic{width:16px;height:16px}
.eyebrow--white{background:#fff;box-shadow:var(--shadow-xs)}
.eyebrow--dark{background:rgba(255,255,255,.12);color:#fff}

/* Section heading */
.sec-head{display:flex;flex-direction:column;gap:14px;align-items:flex-start;margin-bottom:48px}
.sec-head p{max-width:680px}
.sec-head--center{align-items:center;text-align:center;max-width:760px;margin-left:auto;margin-right:auto}
.sec-head h2+p{margin-top:2px}

/* Buttons */
.btn{--btn-h:48px;display:inline-flex;align-items:center;justify-content:center;gap:10px;height:var(--btn-h);padding:0 24px;border-radius:var(--radius-pill);border:1.5px solid transparent;font:700 15px/1 var(--font-body);cursor:pointer;white-space:nowrap;transition:background var(--dur-fast) var(--ease-out),color var(--dur-fast),border-color var(--dur-fast),box-shadow var(--dur-base),transform var(--dur-fast)}
.btn .ic{width:18px;height:18px;transition:transform var(--dur-base) var(--ease-out)}
.btn:hover .ic-arrow{transform:translateX(3px)}
.btn:active{transform:translateY(1px)}
.btn:focus-visible{box-shadow:var(--ring);border-radius:var(--radius-pill)}
.btn-lg{--btn-h:56px;padding:0 30px;font-size:16px}
.btn-primary{background:var(--blue-500);color:#fff;box-shadow:var(--shadow-btn)}
.btn-primary:hover{background:var(--blue-600)}
.btn-primary:active{background:var(--blue-700);box-shadow:none}
.btn-navy{background:var(--blue-900);color:#fff}
.btn-navy:hover{background:var(--blue-800)}
.btn-outline{background:#fff;color:var(--blue-500);border-color:var(--blue-200)}
.btn-outline:hover{border-color:var(--blue-500);background:var(--blue-50)}
.btn-white{background:#fff;color:var(--blue-900)}
.btn-white:hover{background:var(--blue-50)}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.btn-ghost-light:hover{background:rgba(255,255,255,.1)}
.btn-emergency{background:var(--red-500);color:#fff;box-shadow:var(--shadow-btn-red)}
.btn-emergency:hover{background:var(--red-600)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font:700 14px/1.4 var(--font-body);color:var(--blue-500);transition:color var(--dur-fast)}
.link-arrow .ic{width:16px;height:16px;transition:transform var(--dur-base) var(--ease-out)}
.link-arrow:hover{color:var(--blue-700)}
.link-arrow:hover .ic{transform:translateX(3px)}

/* Tags */
.tag{display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:var(--radius-pill);font:700 12px/1 var(--font-body)}
.tag-blue{background:var(--blue-50);color:var(--blue-600)}
.tag-green{background:var(--green-50);color:var(--green-700)}
.tag-yellow{background:var(--yellow-50);color:var(--yellow-700)}
.tag-white{background:#fff;color:var(--blue-600);box-shadow:var(--shadow-xs)}

/* Icon badge */
.icon-badge{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;background:var(--blue-500);color:#fff;flex:none}
.icon-badge .ic{width:24px;height:24px}
.icon-badge--soft{background:var(--blue-50);color:var(--blue-500)}
.icon-badge--sm{width:40px;height:40px}
.icon-badge--sm .ic{width:20px;height:20px}

/* Card */
.card{background:#fff;border:1px solid var(--gray-100);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);transition:transform var(--dur-base) var(--ease-out),box-shadow var(--dur-base) var(--ease-out),border-color var(--dur-base)}
.card--hover:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--blue-100)}

/* Reveal */
.reveal{opacity:0;transform:translateY(24px);transition:opacity var(--dur-slow) var(--ease-out),transform var(--dur-slow) var(--ease-out)}
.reveal.is-in{opacity:1;transform:none}
.no-js .reveal{opacity:1;transform:none}

/* ================= TOP BAR + HEADER ================= */
.topbar{background:var(--blue-500);color:#fff;font-size:13px;font-weight:500}
.topbar__in{display:flex;justify-content:space-between;align-items:center;gap:16px;min-height:var(--topbar-h)}
.topbar__items{display:flex;gap:24px;flex-wrap:wrap}
.topbar__items a,.topbar__items span{display:inline-flex;align-items:center;gap:8px}
.topbar__items a:hover{text-decoration:underline}
.topbar .ic{width:15px;height:15px}
.topbar__social{display:flex;gap:8px}
.topbar__social a{width:24px;height:24px;border-radius:5px;background:#fff;color:var(--blue-500);display:grid;place-items:center;font:800 10px var(--font-heading);transition:background var(--dur-fast)}
.topbar__social a:hover{background:var(--blue-100)}
.topbar__social .ic{width:14px;height:14px}

.header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--gray-100);transition:box-shadow var(--dur-base)}
.header.is-stuck{box-shadow:var(--shadow-sm)}
.header__in{display:flex;align-items:center;justify-content:space-between;gap:24px;height:var(--header-h)}
.lockup{display:flex;align-items:center;gap:12px;flex:none}
.lockup img{width:56px;height:56px}
.lockup__name{display:block;font:800 18px/1.2 var(--font-heading);color:var(--brand-navy)}
.lockup__sub{display:block;font:700 10.5px/1.4 var(--font-body);letter-spacing:.12em;text-transform:uppercase;color:var(--green-700)}
.nav{display:flex;align-items:center;gap:4px}
.nav a{display:inline-flex;align-items:center;gap:4px;padding:10px 12px;border-radius:var(--radius-pill);font:600 14.5px/1 var(--font-body);color:var(--blue-900);transition:background var(--dur-fast),color var(--dur-fast)}
.nav a:hover{color:var(--blue-500);background:var(--blue-50)}
.nav a.is-active{background:var(--blue-50);color:var(--blue-500)}
.nav .ic{width:14px;height:14px}
.hotline{display:flex;align-items:center;gap:12px}
.hotline__icon{width:44px;height:44px;border-radius:50%;background:var(--red-500);color:#fff;display:grid;place-items:center;box-shadow:var(--shadow-btn-red);flex:none}
.hotline__icon .ic{width:20px;height:20px}
.hotline__label{display:block;font-size:12px;line-height:1.3;color:var(--gray-500)}
.hotline__num{display:block;font:800 18px/1.2 var(--font-heading);color:var(--blue-900)}
.burger{display:none;width:44px;height:44px;border-radius:12px;border:1.5px solid var(--gray-100);background:#fff;color:var(--blue-900);place-items:center;cursor:pointer}
.mnav{display:none}

/* ================= HERO ================= */
/* Hero: full chiều ngang, chiều cao cố định vừa phải */
.hero{position:relative;overflow:hidden;display:flex;align-items:flex-start;height:750px;background:linear-gradient(180deg,#f4f9fe 0%,#eaf3fc 100%)}
.hero__bg{display:none}
/* Ảnh diễn giả: diễn giả (ở ~64% bề ngang ảnh) căn giữa cột phải = tâm container + 300px.
   Cao 112% hero, neo đáy; 4 mép hoà vào nền sáng giống bên trái */
.hero__photo{position:absolute;bottom:0;height:112%;left:calc(50% + 300px);transform:translateX(-64%);
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 18%,#000 74%,transparent 93%),linear-gradient(180deg,transparent 0,#000 22%);
  -webkit-mask-composite:source-in;
  mask-image:linear-gradient(90deg,transparent 0,#000 18%,#000 74%,transparent 93%),linear-gradient(180deg,transparent 0,#000 22%);
  mask-composite:intersect}
.hero__photo img{height:100%;width:auto;max-width:none}
/* Lớp phủ đậm ở vùng chữ, nhạt dần về phía đáy để ảnh lộ ra sau khung kính */
.hero__overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(244,249,254,.97) 0%,rgba(244,249,254,.9) 36%,rgba(244,249,254,.4) 50%,rgba(244,249,254,0) 60%);-webkit-mask-image:linear-gradient(180deg,#000 55%,rgba(0,0,0,.35) 100%);mask-image:linear-gradient(180deg,#000 55%,rgba(0,0,0,.35) 100%)}
.hero__deco{position:absolute;left:-120px;bottom:-160px;width:480px;height:480px;border-radius:50%;background:radial-gradient(circle,rgba(1,103,192,.10),rgba(1,103,192,0) 70%)}
.hero__inner{width:100%;padding-top:96px}
/* Khối nội dung co theo bề ngang tiêu đề; đoạn mô tả bám đúng bề ngang đó */
.hero__content{position:relative;z-index:1;width:fit-content;max-width:100%;display:flex;flex-direction:column;gap:20px;align-items:flex-start}
.hero__content .t-display{font-size:clamp(1.85rem,1.2rem + 2.3vw,3.1rem);line-height:1.22}
.hero__hl{white-space:nowrap}
.hero__content .t-display .light{font-weight:600}
/* Cụm nhấn: KỸ NĂNG SƠ CẤP CỨU in hoa, xanh, có vệt highlight vàng nhạt */
.hero__hl{color:var(--brand-blue);text-transform:uppercase;letter-spacing:-.01em;background:linear-gradient(180deg,transparent 64%,var(--yellow-100) 64%,var(--yellow-100) 92%,transparent 92%);-webkit-box-decoration-break:clone;box-decoration-break:clone;padding:0 4px;margin-left:-4px}
.hero__desc{width:0;min-width:100%;font-size:16px;font-weight:500;line-height:1.7}
.hero__desc b{color:var(--blue-900);font-weight:700}
.hero__cta{display:flex;gap:12px;flex-wrap:wrap}
/* Kính mờ: nền trắng 75%, blur nền phía sau, viền sáng mảnh, bóng rất nhẹ */
.glass{display:flex;align-items:center;gap:14px;padding:14px 18px;border-radius:var(--radius-lg);background:linear-gradient(135deg,rgba(255,255,255,.45),rgba(255,255,255,.25));-webkit-backdrop-filter:blur(18px) saturate(170%);backdrop-filter:blur(18px) saturate(170%);border:0;box-shadow:0 8px 24px rgba(5,46,99,.06);margin-top:6px}
.glass__num{font:800 16px/1.3 var(--font-heading);color:var(--blue-900)}
.glass__label{font-size:12.5px;line-height:1.4;color:var(--gray-600)}
.avatars{display:flex;margin-top:8px}
.avatars img{width:30px;height:30px;border-radius:50%;border:2px solid #fff;object-fit:cover;margin-left:-8px}
.avatars img:first-child{margin-left:0}
/* Hàng đáy hero: kính mờ + thẻ 2020, align-items:center để 2 ô cùng tâm dọc */
.hero__bottom{position:absolute;z-index:2;left:0;right:0;bottom:48px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.hero__bottom .glass{margin-top:0}
.stat-float{width:270px;padding:22px 24px;border-radius:var(--radius-lg);background:#fff;box-shadow:var(--shadow-lg)}
.stat-float__label{display:flex;align-items:center;gap:8px;font:700 13px/1.4 var(--font-body);color:var(--blue-900)}
.stat-float__dot{width:18px;height:18px;border-radius:50%;background:var(--blue-500);color:#fff;display:grid;place-items:center}
.stat-float__dot .ic{width:11px;height:11px;stroke-width:3}
.stat-float .t-number{font-size:52px;margin:12px 0 8px;display:block}
.stat-float p{font-size:13px;line-height:1.55}
.hero__badge{position:absolute;z-index:2;right:var(--gutter);top:40px;display:flex;align-items:center;gap:10px;padding:10px 16px 10px 10px;border-radius:var(--radius-pill);background:#fff;box-shadow:var(--shadow-md);font:700 13px/1.3 var(--font-body);color:var(--blue-900)}
.hero__badge .icon-badge{width:32px;height:32px;background:var(--green-50);color:var(--green-600)}
.hero__badge .ic{width:16px;height:16px}

/* Topic tiles */
/* Dải chủ đề: section riêng ngay dưới hero (theo ảnh mẫu) */
.tiles-wrap{padding-top:32px}
.tiles{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.tile{display:flex;flex-direction:column;align-items:center;gap:14px;padding:24px 16px;border-radius:var(--radius-lg);background:var(--gray-25);border:1px solid var(--gray-100);text-align:center;transition:transform var(--dur-base) var(--ease-out),box-shadow var(--dur-base),background var(--dur-base),border-color var(--dur-base)}
.tile .ic{width:32px;height:32px;color:var(--blue-500);stroke-width:1.6}
.tile span{font:700 14.5px/1.35 var(--font-heading);color:var(--blue-900)}
.tile:hover{background:#fff;transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--blue-100)}

/* ================= ĐỐI TÁC SSVN ================= */
/* Khối nổi bật nền xanh đậm: chữ trái, bộ ảnh ký kết phải */
.partner{position:relative;overflow:hidden;isolation:isolate;border-radius:var(--radius-2xl);background:var(--grad-brand);color:#fff;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:center;padding:56px}
.partner__ring{position:absolute;left:-150px;bottom:-170px;width:400px;height:400px;border-radius:50%;border:64px solid rgba(255,255,255,.05);z-index:-1}
.partner__text{display:flex;flex-direction:column;gap:18px;align-items:flex-start}
.partner h2{color:#fff;font-size:clamp(1.6rem,1.1rem + 1.4vw,2.25rem);line-height:1.25}
.partner h2 .t-accent{color:var(--yellow-500)}
.partner__pre{display:block;white-space:nowrap;font-size:.72em;line-height:1.35;margin-bottom:4px}
.partner p{color:rgba(255,255,255,.84);font-size:15.5px;line-height:1.7}
.partner p b{color:#fff;font-weight:700}
.partner__facts{display:grid;grid-template-columns:1fr 1fr;gap:12px;width:100%;margin-top:4px}
.pfact{display:flex;gap:12px;align-items:center;padding:14px 16px;border-radius:var(--radius-lg);background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14)}
.pfact .icon-badge{flex:none;width:40px;height:40px;background:rgba(255,255,255,.12);color:#fff}
.pfact .ic{width:20px;height:20px}
.pfact b{display:block;font:800 18px/1.25 var(--font-heading);color:#fff}
.pfact small{display:block;font-size:12.5px;line-height:1.4;color:rgba(255,255,255,.75)}
.partner__gallery{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.partner__gallery figure{position:relative;margin:0;border-radius:var(--radius-lg);overflow:hidden;background:#0b3b77}
.partner__gallery img{display:block;width:100%;aspect-ratio:1/1;object-fit:cover;transition:transform 600ms var(--ease-out)}
.partner__gallery figure:hover img{transform:scale(1.04)}
.partner__gallery .is-wide{grid-column:1/-1}
.partner__gallery .is-wide img{aspect-ratio:2/1}
.partner__cap{position:absolute;left:14px;bottom:14px;display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:var(--radius-pill);background:#fff;box-shadow:var(--shadow-md);font:700 13px/1.3 var(--font-body);color:var(--blue-900)}
.partner__cap .ic{width:16px;height:16px;color:var(--blue-500)}
@media (max-width:1023px){.partner{grid-template-columns:1fr;gap:36px;padding:44px 32px}}
@media (max-width:767px){.partner{padding:32px 20px}.partner__pre{white-space:normal}.partner__facts{grid-template-columns:1fr}.partner__cap{left:10px;bottom:10px;font-size:12px;padding:6px 12px}}

/* ================= WHY LEARN ================= */
.why{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.why__text{display:flex;flex-direction:column;gap:16px;align-items:flex-start}
/* 4 câu hỏi: card trắng nổi, vạch xanh bên trái, dấu ? tròn đặc */
.qs{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:12px 0;width:100%}
.q{position:relative;display:flex;gap:14px;align-items:center;padding:18px 20px 18px 18px;border-radius:var(--radius-lg);background:#fff;border:1px solid var(--blue-100);border-left:4px solid var(--blue-500);box-shadow:var(--shadow-md);font:700 16px/1.45 var(--font-heading);color:var(--blue-900);transition:transform var(--dur-base) var(--ease-out),box-shadow var(--dur-base) var(--ease-out)}
.q:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.q__mark{flex:none;width:38px;height:38px;border-radius:50%;background:var(--blue-500);color:#fff;display:grid;place-items:center;font:800 18px/1 var(--font-heading);box-shadow:0 0 0 5px var(--blue-50)}
.why__media{position:relative}
.why__media img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:var(--radius-xl)}
.quote-card{position:absolute;left:-40px;bottom:32px;max-width:320px;padding:22px 24px;border-radius:var(--radius-lg);background:var(--blue-900);color:#fff;box-shadow:var(--shadow-lg)}
.quote-card .ic{width:28px;height:28px;color:var(--yellow-500);margin-bottom:8px}
.quote-card p{font:700 17px/1.5 var(--font-heading)}
.quote-card p span{color:var(--blue-200);font-weight:600}
/* Nhóm đối tượng: thẻ ảnh dọc, chữ trắng trên lớp phủ navy (khác bố cục ảnh-trên/chữ-dưới của section kế tiếp) */
.audience-head{display:flex;flex-direction:column;align-items:flex-start;gap:8px;margin:80px 0 28px}
.audience-head h3{font:700 var(--fs-h3)/1.3 var(--font-heading)}
.audience-head p{max-width:640px;font-size:15px}
.audience{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.aud{position:relative;aspect-ratio:4/5;border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-md);isolation:isolate;transition:transform var(--dur-base) var(--ease-out),box-shadow var(--dur-base) var(--ease-out)}
.aud img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transition:transform 700ms var(--ease-out)}
.aud::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(5,46,99,0) 30%,rgba(5,46,99,.55) 58%,rgba(5,46,99,.94) 100%)}
.aud:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.aud:hover img{transform:scale(1.05)}
.aud__tag{position:absolute;top:20px;left:20px}
.aud__body{position:absolute;left:0;right:0;bottom:0;padding:28px;color:#fff;display:flex;flex-direction:column;gap:10px}
.aud__body h3{color:#fff;font:800 28px/1.2 var(--font-heading);letter-spacing:-.01em}
.aud__body p{font-size:15px;line-height:1.6;color:rgba(255,255,255,.88)}
.aud__risks{display:flex;flex-wrap:wrap;gap:6px;margin-top:4px}
.aud__risks span{height:26px;padding:0 10px;border-radius:var(--radius-pill);background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);font:600 12px/24px var(--font-body);color:#fff}

/* ================= WHAT ALPHA BRINGS ================= */
.soft-block{background:var(--blue-50);border-radius:var(--radius-2xl);padding:var(--section-y) 0}
.split-head{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:end;margin-bottom:48px}
.split-head .sec-head{margin-bottom:0}
.pillars{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.pillar{overflow:hidden;display:flex;flex-direction:column}
.pillar__img{position:relative;aspect-ratio:16/11;overflow:hidden}
.pillar__img img{width:100%;height:100%;object-fit:cover;transition:transform 600ms var(--ease-out)}
.pillar:hover .pillar__img img{transform:scale(1.04)}
.pillar__num{position:absolute;left:14px;top:14px;height:28px;padding:0 12px;border-radius:var(--radius-pill);background:#fff;color:var(--blue-600);font:800 12px/28px var(--font-heading);box-shadow:var(--shadow-xs)}
.pillar__body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px;position:relative}
.pillar__body .icon-badge{margin-top:-48px;border:4px solid #fff;box-sizing:content-box;width:44px;height:44px}
.pillar__body h3{font:700 20px/1.3 var(--font-heading)}
.pillar__body p{font-size:14.5px;line-height:1.6}

/* ================= PROGRAMS ================= */
.programs{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.prog{display:flex;flex-direction:column;overflow:hidden}
.prog__img{position:relative;aspect-ratio:16/9;overflow:hidden}
.prog__img img{width:100%;height:100%;object-fit:cover}
.prog__img .tag{position:absolute;left:16px;top:16px}
.prog__body{padding:28px;display:flex;flex-direction:column;gap:14px;flex:1}
.prog__body h3{font:800 22px/1.3 var(--font-heading);text-transform:uppercase;letter-spacing:-.005em}
.prog__meta{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13px;color:var(--gray-500)}
.prog__meta span{display:inline-flex;align-items:center;gap:6px}
.prog__meta .ic{width:16px;height:16px;color:var(--blue-500)}
.prog__foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--gray-100);display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* ================= PROGRAM DESIGN (steps) ================= */
.design{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.design__aside{position:sticky;top:calc(var(--header-h) + 24px);display:flex;flex-direction:column;gap:24px}
.design__aside img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-xl)}
.alert{display:flex;gap:14px;padding:16px 18px;border-radius:var(--radius-md);border:1px solid;font-size:14.5px;line-height:1.6}
.alert .ic{width:22px;height:22px;margin-top:1px}
.alert strong{display:block;font:700 15px/1.4 var(--font-heading);margin-bottom:2px}
.alert--info{background:#fff;border-color:var(--blue-100);color:var(--blue-800)}
.alert--info .ic{color:var(--blue-500)}
.alert--danger{background:var(--red-50);border-color:var(--red-100);color:#7a1216}
.alert--danger .ic{color:var(--red-500)}
.alert--danger strong{color:#7a1216}
.steps{display:flex;flex-direction:column}
.step{position:relative;display:grid;grid-template-columns:48px 1fr;gap:20px;padding-bottom:28px}
.step:last-child{padding-bottom:0}
.step::before{content:"";position:absolute;left:23px;top:54px;bottom:6px;width:2px;background:var(--blue-100)}
.step:last-child::before{display:none}
.step__num{width:48px;height:48px;border-radius:50%;background:var(--blue-500);color:#fff;display:grid;place-items:center;font:800 18px/1 var(--font-heading);box-shadow:0 0 0 6px #fff}
.step__card{padding:20px 24px}
.step__card h3{font:700 17px/1.4 var(--font-heading);margin-bottom:4px}
.step__card p{font-size:14.5px;line-height:1.6}

/* ================= SKILLS ================= */
.skills{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.skill{display:flex;flex-direction:column;align-items:center;gap:14px;padding:26px 14px 22px;text-align:center}
.skill .icon-badge{width:60px;height:60px}
.skill .icon-badge .ic{width:28px;height:28px;stroke-width:1.6}
.skill span{font:700 14.5px/1.4 var(--font-heading);color:var(--blue-900)}
.skills-note{margin-top:28px;text-align:center;font-size:14px;color:var(--gray-500)}

/* ================= TESTIMONIALS ================= */
.testis{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.testi{padding:28px;display:flex;flex-direction:column;gap:16px}
.stars{display:flex;gap:2px;color:var(--yellow-500)}
.stars .ic{width:18px;height:18px}
.testi__quote{font:700 18px/1.45 var(--font-heading);color:var(--blue-900)}
.testi__body{font-size:15px;line-height:1.65;color:var(--gray-700)}
.testi__who{margin-top:auto;padding-top:18px;border-top:1px solid var(--gray-100);display:flex;align-items:center;gap:12px}
.avatar{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;background:var(--blue-50);color:var(--blue-600);font:800 16px/1 var(--font-heading);flex:none}
.testi__name{font:700 15px/1.3 var(--font-heading);color:var(--blue-900)}
.testi__role{font-size:13px;color:var(--gray-500)}

/* ================= CTA BANNER ================= */
.cta{position:relative;overflow:hidden;border-radius:var(--radius-2xl);background:var(--grad-brand);color:#fff;display:grid;grid-template-columns:7fr 5fr;min-height:420px}
.cta__content{position:relative;z-index:1;padding:64px 56px;display:flex;flex-direction:column;gap:20px;align-items:flex-start}
.cta h2{color:#fff}
.cta p{color:rgba(255,255,255,.82);max-width:560px}
.cta__chips{display:flex;flex-wrap:wrap;gap:8px}
.cta__chips span{display:inline-flex;align-items:center;gap:6px;height:32px;padding:0 14px;border-radius:var(--radius-pill);background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);font:600 13px/1 var(--font-body)}
.cta__chips .ic{width:15px;height:15px;color:var(--blue-200)}
.cta__btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:4px}
.cta__photo{position:relative}
.cta__photo img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.cta__photo::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#03478f 0%,rgba(3,71,143,.35) 45%,rgba(3,71,143,0) 100%)}
.cta__ring{position:absolute;right:-120px;top:-120px;width:340px;height:340px;border-radius:50%;border:60px solid rgba(255,255,255,.05);z-index:0}

/* ================= KNOWLEDGE ================= */
.know{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center}
.know__text{display:flex;flex-direction:column;gap:16px;align-items:flex-start}
.topics{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.topic{display:flex;flex-direction:column;gap:12px;padding:24px}
.topic h3{font:700 17px/1.35 var(--font-heading)}
.topic p{font-size:14px;line-height:1.6}
.topic .link-arrow{margin-top:auto}

/* ================= FAQ ================= */
.faq{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.faq__aside{display:flex;flex-direction:column;gap:16px;align-items:flex-start}
.help-card{margin-top:12px;width:100%;padding:24px;border-radius:var(--radius-lg);background:#fff;border:1px solid var(--gray-100);box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:14px}
.help-card h3{font:700 18px/1.35 var(--font-heading)}
.help-card p{font-size:14.5px}
.help-card__btns{display:flex;flex-wrap:wrap;gap:10px}
.acc{border:1px solid var(--gray-200);border-radius:var(--radius-lg);background:#fff;overflow:hidden}
.acc details+details{border-top:1px solid var(--gray-100)}
.acc summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;cursor:pointer;font:700 16px/1.45 var(--font-heading);color:var(--blue-900);transition:color var(--dur-fast)}
.acc summary::-webkit-details-marker{display:none}
.acc summary:focus-visible{box-shadow:inset var(--ring);border-radius:0}
.acc__btn{flex:none;width:32px;height:32px;border-radius:50%;background:var(--blue-50);color:var(--blue-500);display:grid;place-items:center;transition:transform var(--dur-base) var(--ease-out),background var(--dur-base),color var(--dur-base)}
.acc__btn .ic{width:18px;height:18px}
.acc details[open] summary{color:var(--blue-500)}
.acc details[open] .acc__btn{transform:rotate(45deg);background:var(--blue-500);color:#fff}
.acc__body{padding:0 24px 22px;font-size:15px;line-height:1.7}
.acc__body .short{display:inline-block;margin-bottom:6px;font:800 13px/1.4 var(--font-body);letter-spacing:.04em;text-transform:uppercase;color:var(--green-700)}

/* ================= FOOTER ================= */
.footer{background:var(--blue-900);color:rgba(255,255,255,.75);margin-top:var(--section-y);font-size:14.5px}
.footer__top{display:grid;grid-template-columns:4fr 2fr 2fr 4fr;gap:40px;padding:72px 0 48px}
.footer h4{color:#fff;font:700 16px/1.4 var(--font-heading);margin-bottom:18px}
.footer__brand{display:flex;flex-direction:column;gap:18px}
.footer__brand .lockup img{width:72px;height:72px}
.footer__brand .lockup__name{color:#fff}
.footer__brand .lockup__sub{color:var(--green-100)}
.footer__links{display:flex;flex-direction:column;gap:10px}
.footer__links a{transition:color var(--dur-fast)}
.footer__links a:hover{color:#fff}
.footer__contact{display:flex;flex-direction:column;gap:14px}
.footer__contact li{display:flex;gap:12px;align-items:flex-start}
.footer__contact .ic{width:18px;height:18px;color:var(--blue-300);margin-top:3px}
.footer__contact a:hover{color:#fff}
.footer__contact b{color:#fff;font-weight:700}
.socials{display:flex;gap:10px}
.socials a{width:40px;height:40px;border-radius:12px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);color:#fff;display:grid;place-items:center;font:800 11px var(--font-heading);transition:background var(--dur-fast)}
.socials a:hover{background:var(--blue-500)}
.socials .ic{width:18px;height:18px}
.footer__sos{display:flex;align-items:center;gap:12px;padding:14px 16px;border-radius:var(--radius-md);background:rgba(222,35,42,.14);border:1px solid rgba(236,122,126,.35);color:#fff;font-size:14px}
.footer__sos .ic{width:20px;height:20px;color:#ec7a7e}
.footer__sos b{font:800 18px/1 var(--font-heading)}
.footer__bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13.5px}
.footer__bottom nav{display:flex;gap:20px;flex-wrap:wrap}
.footer__bottom a:hover{color:#fff}

/* ================= RESPONSIVE ================= */
@media (max-width:1180px){
  .nav a{padding:10px 9px;font-size:14px}
  .hotline__label{display:none}
}
@media (max-width:1023px){
  .nav,.hotline__text{display:none}
  .burger{display:grid}
  .mnav{display:block;position:fixed;inset:var(--header-h) 0 auto 0;z-index:49;background:#fff;border-bottom:1px solid var(--gray-100);box-shadow:var(--shadow-md);padding:12px var(--gutter) 20px;max-height:calc(100vh - var(--header-h));overflow-y:auto;-webkit-overflow-scrolling:touch;transform:translateY(-8px);opacity:0;visibility:hidden;transition:opacity var(--dur-base),transform var(--dur-base),visibility var(--dur-base)}
  .mnav.is-open{opacity:1;transform:none;visibility:visible}
  .mnav a{display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:var(--radius-md);font:600 16px var(--font-body);color:var(--blue-900)}
  .mnav a.is-active{background:var(--blue-50);color:var(--blue-500)}
  .mnav .btn{width:100%;margin-top:12px}
  /* Tablet/mobile: chữ trên nền xanh nhạt, ảnh tràn viền phía dưới */
  .hero{flex-direction:column;align-items:stretch;height:auto;min-height:0;background:linear-gradient(180deg,#eef6fd 0%,#e3f0fb 100%)}
  .hero__overlay{display:none}
  .hero__inner{order:1;padding-top:48px;padding-bottom:20px}
  .hero__bottom{position:static;order:1;width:100%;padding-bottom:40px;justify-content:flex-start}
  .hero__bg{display:none}
  .hero__photo{position:relative;order:2;left:auto;bottom:auto;transform:none;width:100%;height:clamp(300px,56vw,480px);-webkit-mask-image:none;mask-image:none}
  .hero__photo::before{content:"";position:absolute;inset:0 0 auto;height:90px;background:linear-gradient(180deg,#e3f0fb,rgba(227,240,251,0));z-index:1}
  .hero__photo img{width:100%;max-width:100%;object-fit:cover;object-position:64% 28%}
  .hero__content{max-width:620px}
  .stat-float,.hero__badge{display:none}
  .tiles{grid-template-columns:repeat(3,1fr)}
  .why,.design,.know,.faq{grid-template-columns:1fr;gap:40px}
  .why__media{max-width:520px}
  .quote-card{left:16px;right:16px;bottom:16px;max-width:none}
  .audience{grid-template-columns:1fr}
  .aud{aspect-ratio:16/10}
  .audience-head{margin-top:56px}
  .split-head{grid-template-columns:1fr;gap:16px}
  .pillars{grid-template-columns:1fr 1fr}
  .design__aside{position:static}
  .skills{grid-template-columns:repeat(3,1fr)}
  .testis{grid-template-columns:1fr}
  .cta{grid-template-columns:1fr}
  .cta__photo{display:none}
  .footer__top{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  .topbar__items>*:nth-child(n+2),.topbar__social{display:none}
  .lockup img{width:44px;height:44px}
  .lockup__name{font-size:16px}
  /* Mobile: chữ ở trên, ảnh lộ ra ở nửa dưới */
  .hero__inner{padding-top:36px;padding-bottom:20px}
  .hero__bottom{padding-bottom:32px}
  .hero__content .t-display{font-size:min(7.4vw,2.1rem)}
  .hero__photo img{object-position:66% 25%}
  .hero__cta{width:100%}
  .tiles-wrap{padding-top:24px}
  .hero__cta .btn{flex:1 1 100%}
  .tiles{grid-template-columns:1fr 1fr;gap:12px}
  .tiles .tile:last-child{grid-column:1/-1}
  .qs{grid-template-columns:1fr}
  .aud{aspect-ratio:4/5}
  .aud__body{padding:22px}
  .aud__body h3{font-size:24px}
  .pillars,.programs{grid-template-columns:1fr}
  .skills{grid-template-columns:1fr 1fr;gap:12px}
  .cta__content{padding:40px 24px}
  .cta__btns .btn{flex:1 1 100%}
  .topics{grid-template-columns:1fr}
  .acc summary{padding:18px 18px;font-size:15.5px}
  .acc__body{padding:0 18px 20px}
  .footer__top{grid-template-columns:1fr;padding:56px 0 32px;gap:32px}
  .prog__body,.aud,.testi{padding:24px}
  .header__in{gap:8px}
  .btn{white-space:normal;text-align:center}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}.reveal{opacity:1;transform:none}}