/* Trang Tiếng Anh doanh nghiệp theo bố cục vus.edu.vn — chỉ phần nội dung, prefix .bz.
   Vai trò màu theo VUS (nền đậm / nền khối màu / nhãn / dải cong / bậc thang), giá trị theo nhận diện EVAS. */
.bz{--deep:#8f1d22;--block:#c8102e;--pill:#e31e36;--accent:#ffc93c;--alt:#f05b28;--ink:#231f20;--muted:#4a4a4a;
  --r:30px;font-family:'Be Vietnam Pro',sans-serif;color:var(--muted);font-size:17px;line-height:1.6;overflow-x:clip}
.bz *,.bz *::before,.bz *::after{box-sizing:border-box}
:where(.bz) p{margin:0}
:where(.bz) :is(h1,h2,h3,h4){margin:0}
.bz-wrap{max-width:1376px;margin:0 auto;padding:0 32px;position:relative}
.bz-sec{padding:72px 0;position:relative}
/* Nền khối màu có hoa văn nét cong mờ (như các section tím của VUS) */
.bz-sec--color{background:var(--block) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='420' height='420' fill='none' stroke='%23fff' stroke-opacity='.07' stroke-width='22' stroke-linecap='round'%3E%3Cpath d='M-20 120c80-90 160 40 230-30s40-150 130-110'/%3E%3Cpath d='M40 400c40-120 170-60 210-150s120-60 190-20'/%3E%3Ccircle cx='330' cy='300' r='46'/%3E%3C/svg%3E") repeat;color:#fff}

/* Tiêu đề: phần chữ thường + nhãn bo tròn nghiêng nhẹ, có nét vẽ tay ở góc */
.bz .bz-title{text-align:center;font-weight:800;font-size:clamp(24px,2.6vw,34px);line-height:1.25;text-transform:uppercase;
  color:var(--deep);margin:0 auto 24px;display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:10px 14px}
.bz-title span{display:inline-block}
.bz-title em{position:relative;display:inline-block;font-style:normal;background:var(--pill);color:#fff;padding:4px 26px 6px;
  border-radius:35px;transform:rotate(-1.5deg)}
.bz-title em::after{content:'';position:absolute;top:-18px;right:-26px;width:28px;height:28px;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 28 28' fill='none' stroke='%23e31e36' stroke-width='2.4' stroke-linejoin='round'%3E%3Cpath d='M3 20l6-9 3 2-6 9zM10 24l10-11 2.5 2.5-10 11zM14 8l9-5 1.5 3-9 5z'/%3E%3C/svg%3E") no-repeat center/contain}
.bz .bz-title--inv{color:#fff}
.bz-title--inv em{background:#fff;color:var(--pill)}
.bz-title--inv em::after{filter:brightness(0) invert(1)}
.bz .bz-title--stack{flex-direction:column}
.bz .bz-sub{text-align:center;max-width:980px;margin:0 auto 40px;font-weight:500;color:var(--ink)}
.bz-sub b,.bz-sub strong{color:var(--pill)}
.bz .bz-sub--inv{color:#fff}
.bz-sub--inv b,.bz-sub--inv strong{color:var(--accent)}

/* Nút đỏ bo tròn có vòng mũi tên bên phải (như "TÌM KIẾM"/"TƯ VẤN NGAY") */
.bz-btn{display:inline-flex;align-items:center;gap:18px;padding:6px 6px 6px 30px;border-radius:999px;background:var(--pill);
  color:#fff;font-weight:700;font-size:16px;text-decoration:none;text-transform:uppercase;transition:background .2s,transform .2s}
.bz-btn:hover{background:#b8001a;color:#fff;transform:translateY(-2px)}
.bz-btn__ic{display:grid;place-items:center;width:40px;height:40px;border-radius:50%;background:#fff;color:var(--pill);font-size:16px}
.bz-btn--light{background:#fff;color:var(--deep)}
.bz-btn--light .bz-btn__ic{background:var(--deep);color:#fff}
.bz-btn--light:hover{background:var(--accent);color:var(--deep)}

/* 1. Hero */
.bz-hero{position:relative;background:var(--deep);overflow:hidden;padding:64px 0 56px}
.bz-hero__wave{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.bz-hero__wave path{fill:none;stroke:var(--accent);stroke-width:120;stroke-linecap:round}
.bz-hero__grid{position:relative;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:center;min-height:440px}
.bz-hero__title{font-family:'Paytone One','Be Vietnam Pro',sans-serif;font-weight:400;text-transform:uppercase;color:#fff;
  font-size:clamp(34px,4.4vw,60px);line-height:1.15;letter-spacing:.01em;text-shadow:0 3px 0 rgba(0,0,0,.18)}
.bz-hero__lead{margin-top:20px!important;max-width:560px;color:#fff;font-size:18px;font-weight:500;
  background:rgba(0,0,0,.18);padding:16px 22px;border-radius:20px;backdrop-filter:blur(2px)}
.bz-hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.bz-hero__art{position:relative}
.bz-hero__art img{display:block;width:100%;max-width:560px;height:auto;margin-left:auto;border-radius:40px 40px 40px 140px;
  border:8px solid #fff;box-shadow:0 24px 50px rgba(0,0,0,.28);transform:rotate(1.5deg)}
.bz-hero__doodle{position:absolute;color:#fff;font-size:56px;opacity:.9;pointer-events:none}
.bz-hero__doodle--a{left:-10px;bottom:-6px;transform:rotate(-14deg)}
.bz-hero__doodle--b{right:-14px;top:-18px;transform:rotate(18deg)}

/* Breadcrumb */
.bz-crumb{margin-top:24px;background:#f2f2f2;border-radius:0 0 24px 24px;padding:14px 22px;font-weight:600}
.bz-crumb ol,.bz-crumb .breadcrumb{margin:0;padding:0;background:none}
.bz-crumb a{color:var(--deep);text-decoration:none}
.bz-crumb a:hover{color:var(--pill)}

/* 2. Giới thiệu + thẻ */
.bz-banner{margin:0 0 0;border-radius:var(--r);overflow:hidden;box-shadow:0 8px 17px 2px rgba(0,0,0,.08)}
.bz-banner img{display:block;width:100%;height:auto}
.bz-master{padding-top:24px}
.bz .bz-master__title{text-align:center;font-weight:800;font-size:clamp(26px,2.8vw,40px);line-height:1.2;color:var(--ink);margin:0 0 14px}
.bz-master__title span{color:var(--pill)}
.bz .bz-master__sub{text-align:center;max-width:820px;margin:0 auto 40px;font-size:clamp(16px,1.3vw,19px);color:#555}
.bz-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}
.bz-card{background:#fff;border-radius:24px;overflow:hidden;box-shadow:0 10px 30px rgba(0,0,0,.08);transition:transform .25s,box-shadow .25s}
.bz-card:hover{transform:translateY(-6px);box-shadow:0 18px 36px rgba(0,0,0,.12)}
.bz-card__img{aspect-ratio:604/314;overflow:hidden;border-radius:24px 24px 0 0;background:#f6f6f6}
.bz-card__img img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .4s}
.bz-card:hover .bz-card__img img{transform:scale(1.04)}
.bz-card__body{display:flex;gap:20px;align-items:flex-start;padding:26px 30px 34px}
.bz-card__ic{flex:0 0 64px;height:64px;display:grid;place-items:center;border-radius:50%;background:#fde3e6;color:var(--pill);font-size:26px}
.bz .bz-card h3{font-size:clamp(18px,1.45vw,21px);font-weight:700;color:var(--ink);line-height:1.3;margin:6px 0 10px;text-wrap:balance}
.bz-card p{font-size:16px;line-height:1.65;color:#555}

/* 3. Ô chi tiết chương trình (trắng / đậm xen kẽ) */
.bz-boxes{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:40px 24px}
/* Ảnh lớp học cột phải, cao bằng 2 ô đầu (như khối "Hệ thống chương trình" của VUS) */
.bz-boxes--photo .bz-boxes__img{grid-column:2;grid-row:1/span 2;margin:0;border-radius:var(--r);overflow:hidden;min-height:320px;
  box-shadow:0 14px 30px rgba(0,0,0,.2)}
.bz-boxes--photo .bz-box:nth-of-type(1),.bz-boxes--photo .bz-box:nth-of-type(2){grid-column:1}
.bz-boxes__img img{display:block;width:100%;height:100%;object-fit:cover}
.bz-box{background:#fff;color:var(--deep);border-radius:var(--r);padding:30px 30px 34px}
.bz-box h3{font-size:19px;font-weight:700;margin-bottom:10px;text-transform:uppercase}
.bz-box p{font-size:16px;color:var(--ink)}
.bz-box p+p{margin-top:10px}
.bz-box ul{margin:0;padding:0;list-style:none}
.bz-box li{position:relative;padding-left:26px;font-size:16px;color:var(--ink)}
.bz-box li+li{margin-top:8px}
.bz-box li::before{content:'';position:absolute;left:4px;top:.55em;width:10px;height:10px;border-radius:50%;background:var(--pill)}
.bz-box--deep{background:var(--deep);color:#fff}
.bz-box--deep h3{color:var(--accent)}
.bz-box--deep p,.bz-box--deep li{color:#fff}
.bz-box--deep li::before{background:var(--accent)}

/* 4. Cấp độ + bậc thang */
.bz-levels{padding-bottom:0}
@media (max-width:860px){.bz-levels{padding-bottom:32px}}
.bz-levels__cols{display:grid;grid-template-columns:repeat(var(--n),minmax(0,1fr));margin-top:40px}
.bz-levels__col{padding:0 32px 40px;border-left:2px dashed #d6d6d6}
.bz-levels__col:first-child{border-left:0}
.bz-levels__no{display:block;font-family:'Paytone One',sans-serif;font-size:64px;line-height:1;color:rgba(200,16,46,.12)}
.bz-levels__col h3{font-family:'Paytone One','Be Vietnam Pro',sans-serif;font-weight:400;font-size:clamp(20px,1.7vw,24px);
  color:var(--deep);margin:6px 0 12px}
.bz-levels__col p{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:600;color:var(--ink)}
.bz-levels__col p i{color:var(--pill)}
.bz-levels__stairs{display:grid;grid-template-columns:repeat(var(--n),minmax(0,1fr));align-items:end;min-height:200px}
.bz-levels__stairs span{display:flex;align-items:flex-end;justify-content:center;height:var(--h);padding:0 12px 28px;
  font-family:'Paytone One',sans-serif;font-size:clamp(14px,1.3vw,19px);color:#fff;text-align:center;border-radius:60px 60px 0 0}
.bz-step--0{background:var(--alt)}
.bz-step--1{background:var(--deep)}

/* 5. Chủ đề */
.bz-topics{display:flex;flex-wrap:wrap;justify-content:center;gap:28px;margin-top:40px}
.bz-topic{flex:0 0 calc((100% - 4*28px)/5);margin:0;background:#fff;padding:8px;border-radius:var(--r);overflow:hidden;
  box-shadow:0 10px 24px rgba(0,0,0,.18);transition:transform .25s}
.bz-topic:hover{transform:translateY(-6px) rotate(-1deg)}
.bz-topic img{display:block;width:100%;height:auto;aspect-ratio:1;object-fit:cover;border-radius:calc(var(--r) - 8px);transition:transform .4s}
.bz-topic:hover img{transform:scale(1.05)}

/* 6. Tối ưu chương trình: ảnh trái, danh sách thẻ phải */
.bz-opt-wrap{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:40px;align-items:stretch;margin-top:40px}
.bz-opt__img{margin:0;border-radius:var(--r) var(--r) var(--r) 120px;overflow:hidden;box-shadow:0 14px 30px rgba(0,0,0,.14)}
.bz-opt__img img{display:block;width:100%;height:100%;object-fit:cover}
.bz-opt{display:flex;flex-direction:column;gap:14px}
.bz-opt__item{background:#fff;border-radius:22px;padding:14px 22px;display:flex;gap:18px;align-items:flex-start;
  box-shadow:0 8px 17px 2px rgba(0,0,0,.08),0 3px 14px 2px rgba(0,0,0,.07);border-top:6px solid var(--pill)}
.bz-opt__ic{flex:0 0 56px;height:56px;display:grid;place-items:center;border-radius:50%;background:#fdecee;color:var(--pill);font-size:24px}
.bz-opt__item{border-top:0;border-left:6px solid var(--pill)}
.bz-opt__ic{flex-basis:48px;height:48px;font-size:20px}
.bz-opt__item p{font-size:16px;font-weight:600;color:var(--ink);align-self:center}

/* 7. Đánh giá tiến bộ (thẻ ghim kẹp giấy) */
.bz-notes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:56px;margin-top:56px;padding:0 32px}
.bz-note{position:relative;background:#fff;color:var(--ink);border-radius:var(--r);padding:36px 26px 40px;box-shadow:0 10px 24px rgba(0,0,0,.15)}
.bz-note__clip{position:absolute;top:-18px;right:26px;font-size:46px;color:var(--accent);transform:rotate(20deg)}
.bz-note__no{display:block;font-family:'Paytone One',sans-serif;font-size:48px;line-height:1;color:var(--pill);margin-bottom:14px}
.bz-note p{font-size:16px}
.bz-note b,.bz-note strong{color:var(--deep)}

/* Ảnh lớp học dưới khối đánh giá */
.bz-photos{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:28px;margin-top:56px;padding:0 32px}
.bz-photos figure{margin:0;background:#fff;padding:8px;border-radius:var(--r);box-shadow:0 10px 24px rgba(0,0,0,.18)}
.bz-photos figure:nth-child(1){transform:rotate(-1.2deg)}
.bz-photos figure:nth-child(2){transform:rotate(1.2deg)}
.bz-photos img{display:block;width:100%;height:100%;aspect-ratio:16/10;object-fit:cover;border-radius:calc(var(--r) - 8px)}

/* 8. Đăng ký */
.bz-reg .bz-title span{color:var(--deep)}
.bz-reg__img{margin:0;border-radius:var(--r);overflow:hidden}
.bz-reg__img img{display:block;width:100%;height:auto;transition:transform .3s,filter .3s}
.bz-reg__img:hover img{transform:scale(1.03);filter:brightness(1.05)}

@media (max-width:1199px){
  .bz-notes{gap:28px;padding:0}
  .bz-cards{gap:20px}
  .bz-card__body{padding:22px 20px 28px;gap:14px}
  .bz-card__ic{flex-basis:52px;height:52px;font-size:22px}
  .bz-topic{flex-basis:calc((100% - 2*28px)/3)}
}
@media (max-width:860px){
  .bz-wrap{padding:0 16px}
  .bz-sec{padding:52px 0}
  .bz-hero{padding:40px 0}
  .bz-hero__grid{grid-template-columns:1fr;gap:32px;min-height:0}
  .bz-hero__art img{margin:0 auto}
  .bz-cards,.bz-notes,.bz-boxes{grid-template-columns:1fr}
  .bz-levels__cols{grid-template-columns:1fr}
  .bz-levels__col{border-left:0;border-top:2px dashed #d6d6d6;padding:20px 0}
  .bz-levels__col:first-child{border-top:0}
  .bz-levels__stairs{display:none}
  .bz-topics,.bz-opt{gap:16px}
  .bz-topic{flex-basis:calc((100% - 16px)/2)}
  .bz-opt-wrap,.bz-photos{grid-template-columns:1fr;padding:0}
  .bz-opt__img{border-radius:var(--r)}
  .bz-boxes--photo .bz-boxes__img{grid-column:1;grid-row:auto;min-height:0;aspect-ratio:16/10;order:-1}
  .bz-boxes--photo .bz-box:nth-of-type(n){grid-column:1}
  .bz-photos figure:nth-child(n){transform:none}
  .bz-notes{gap:40px}
  .bz-title em::after{display:none}
}
@media (prefers-reduced-motion:reduce){
  .bz *{transition:none!important}
}