/* ══════════════════════════════════════════════════════════════════════
   MICROADS ACADEMY — trang khoá học
   Bảng màu sáng: xanh thương hiệu, xanh navy và vàng đồng.
   ══════════════════════════════════════════════════════════════════════ */

:root{
  --blue:#1657f0;
  --blue-700:#0f43c4;
  --blue-900:#0a2f8c;
  --blue-50:#eaf0fe;
  --blue-100:#d7e2fd;

  --navy:#0b1b3c;
  --navy-700:#122549;
  --navy-500:#1b3a6b;

  --gold:#e9c77b;
  --gold-400:#f1d79a;
  --gold-600:#c29c4f;

  --cream:#f6f4ef;
  --paper:#ffffff;
  --ink:#0a1020;
  --body:#4d5a73;
  --muted:#7a8699;
  --line:#e6e2d9;
  --line-2:#d9d4c8;

  --ok:#12945f;
  --warn:#b4560d;

  --f-display:'Archivo','Be Vietnam Pro',system-ui,sans-serif;
  --f-body:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;

  --r:18px;
  --r-sm:12px;
  --nav-h:72px;
  --ease:cubic-bezier(.22,.8,.24,1);
  --shadow:0 1px 2px rgba(10,16,32,.05),0 8px 28px -16px rgba(10,16,32,.22);
  --shadow-lg:0 2px 6px rgba(10,16,32,.06),0 26px 60px -28px rgba(10,16,32,.34);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
/* Nhiều khối ở đây được đặt display bằng lớp (.plan, .pay, .modal…), mà khai
   báo display trong lớp thắng thuộc tính [hidden] mặc định của trình duyệt.
   Không có dòng này thì cả hai bảng lộ trình cùng hiện một lúc. */
[hidden]{display:none!important}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 16px);-webkit-text-size-adjust:100%}
body{
  font-family:var(--f-body);
  background:var(--cream);
  color:var(--body);
  font-size:16px;
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,svg,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
:focus-visible{outline:3px solid var(--blue);outline-offset:2px;border-radius:6px}
::selection{background:var(--blue-100);color:var(--ink)}

h1,h2,h3,h4{
  font-family:var(--f-display);
  color:var(--ink);
  font-weight:800;
  line-height:1.08;
  letter-spacing:-.018em;
  text-wrap:balance;
}

.wrap{width:min(1240px,100% - 48px);margin-inline:auto}
.sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ── Nút ───────────────────────────────────────────────────────────── */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:15px 26px;border-radius:10px;
  font-family:var(--f-display);font-weight:700;font-size:14px;
  letter-spacing:.07em;text-transform:uppercase;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s,color .2s,border-color .2s;
}
/* SVG nội tuyến chỉ có viewBox, không có width/height. Trong flexbox trình
   duyệt cho nó cỡ mặc định 300×150 rồi co lại theo chỗ trống — nút sẽ cao
   bất thường. Mọi biểu tượng đặt trong nút phải có kích thước tường minh. */
.btn svg,.copy svg,.modal__x svg,.reqs__badge svg{width:18px;height:18px;flex:none}
.btn .ar{transition:transform .25s var(--ease)}
.btn:hover .ar{transform:translateX(4px)}
.btn--blue{background:var(--blue);color:#fff;box-shadow:0 10px 26px -12px rgba(22,87,240,.75)}
.btn--blue:hover{background:var(--blue-700);transform:translateY(-2px);box-shadow:0 16px 34px -14px rgba(22,87,240,.8)}
.btn--line{border:1.5px solid var(--line-2);color:var(--ink);background:#fff}
.btn--line:hover{border-color:var(--blue);color:var(--blue);transform:translateY(-2px)}
.btn--white{background:#fff;color:var(--blue);box-shadow:0 10px 26px -14px rgba(3,16,60,.5)}
.btn--white:hover{transform:translateY(-2px);box-shadow:0 16px 34px -16px rgba(3,16,60,.6)}
.btn--gold{background:var(--gold);color:#3a2a06;box-shadow:0 10px 26px -14px rgba(233,199,123,.9)}
.btn--gold:hover{background:var(--gold-400);transform:translateY(-2px)}
.btn--ghostlight{border:1.5px solid rgba(255,255,255,.4);color:#fff}
.btn--ghostlight:hover{border-color:#fff;background:rgba(255,255,255,.1)}
.btn--lg{padding:17px 32px;font-size:15px}
.btn--block{width:100%}

/* ── Tiêu đề khối ──────────────────────────────────────────────────── */
.sec{padding:clamp(56px,7.5vw,104px) 0}
.sec--paper{background:var(--paper)}
.sec-head{text-align:center;max-width:760px;margin:0 auto clamp(34px,4.5vw,54px)}
.sec-head h2{font-size:clamp(25px,3.6vw,42px);text-transform:uppercase;letter-spacing:-.01em}
.sec-head h2::after{
  content:"";display:block;width:74px;height:4px;border-radius:3px;
  background:var(--gold);margin:16px auto 0;
}
.sec-head p{margin-top:18px;font-size:clamp(15px,1.5vw,17px);color:var(--body)}
.sec-head--left{text-align:left;margin-inline:0}
.sec-head--left h2::after{margin-inline:0}

.eyebrow{
  font-family:var(--f-display);font-weight:700;font-size:12.5px;
  letter-spacing:.2em;text-transform:uppercase;color:var(--blue);
}

/* ══ Thanh điều hướng ═══════════════════════════════════════════════ */
.nav{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);
  backdrop-filter:saturate(1.6) blur(10px);border-bottom:1px solid var(--line);
}
.nav__in{display:flex;align-items:center;gap:20px;height:var(--nav-h)}
.brand{display:flex;flex-direction:column;justify-content:center;flex:none;line-height:1}
.brand__row{font-family:var(--f-display);font-weight:800;font-size:22px;letter-spacing:-.02em;color:var(--ink)}
.brand__row i{font-style:normal;color:var(--blue)}
.brand__sub{font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-top:4px;font-weight:500}
.nav__links{display:flex;align-items:center;gap:30px;margin-left:auto}
.nav__links a{font-size:14.5px;font-weight:500;color:var(--body);transition:color .2s}
.nav__links a:hover{color:var(--blue)}
/* Nút trong danh sách chỉ dành cho menu xổ trên điện thoại; trên màn rộng đã
   có .nav__cta riêng nên phải ẩn đi, nếu không sẽ hiện hai nút giống nhau. */
.nav__links > .btn{display:none}
.nav__cta{flex:none}
.burger{display:none;flex:none;margin-left:auto;width:44px;height:44px;align-items:center;justify-content:center;border-radius:10px}
.burger span{display:block;width:24px;height:2px;background:var(--ink);border-radius:2px;position:relative;transition:transform .25s var(--ease),opacity .2s}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:24px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s var(--ease)}
.burger span::before{top:-7px}.burger span::after{top:7px}
.burger[aria-expanded="true"] span{transform:rotate(45deg)}
.burger[aria-expanded="true"] span::before{transform:translateY(7px) rotate(-90deg)}
.burger[aria-expanded="true"] span::after{opacity:0}

@media (max-width:1040px){
  .nav__links,.nav__cta{display:none}
  .nav__links > .btn{display:inline-flex}
  .burger{display:flex}
  .nav__links.open{
    display:flex;flex-direction:column;align-items:stretch;gap:0;
    position:absolute;left:0;right:0;top:var(--nav-h);
    background:#fff;border-bottom:1px solid var(--line);
    padding:8px 24px 20px;box-shadow:var(--shadow);
  }
  .nav__links.open a{padding:14px 0;border-bottom:1px solid var(--line);font-size:16px}
  .nav__links.open .btn{margin-top:16px}
}

/* ══ Hero ═══════════════════════════════════════════════════════════ */
.hero{position:relative;background:var(--paper);overflow:hidden}
.hero__in{
  display:grid;grid-template-columns:minmax(0,1.06fr) minmax(0,1fr);
  align-items:center;gap:44px;
  padding:clamp(40px,5.4vw,74px) 0 clamp(44px,5.4vw,78px);
}
.hero__copy{max-width:660px}
/* Cỡ chữ đo theo bề rộng thật mà dòng "BIẾN Ý TƯỞNG THÀNH" cần (Archivo 900
   rộng hơn ước lượng khá nhiều). Bố cục hai cột và một cột có chỗ trống rất
   khác nhau nên mỗi bên một thang riêng; sai là tiêu đề vỡ thành ba dòng. */
.hero h1{
  font-size:clamp(25px,4vw,52px);font-weight:900;line-height:1.04;
  text-transform:uppercase;letter-spacing:-.026em;margin:18px 0 20px;
}
.hero__lead{font-size:clamp(16px,1.65vw,19px);color:var(--body);max-width:52ch}
.hero__acts{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero__foot{
  margin-top:26px;font-size:13.5px;color:var(--muted);
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
}
.hero__foot b{color:var(--ink);font-weight:600}
.hero__dot{width:4px;height:4px;border-radius:50%;background:var(--line-2);flex:none}

.hero__media{position:relative;border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow-lg)}
.hero__media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
/* Tấm biển trên tường trong ảnh gốc — dựng lại bằng CSS để đọc được ở mọi cỡ. */
.hero__plate{
  position:absolute;right:16px;top:16px;max-width:210px;
  background:rgba(8,16,36,.72);backdrop-filter:blur(6px);
  border:1px solid rgba(255,255,255,.14);border-radius:12px;padding:14px 16px;
  font-family:var(--f-display);font-weight:700;font-size:12.5px;line-height:1.45;
  letter-spacing:.09em;text-transform:uppercase;color:#fff;
}
.hero__plate::after{content:"";display:block;width:34px;height:3px;background:var(--gold);border-radius:2px;margin-top:10px}

@media (max-width:920px){
  .hero__in{grid-template-columns:1fr;gap:30px;padding-top:34px}
  .hero__copy{max-width:none}
  /* Một cột: tiêu đề được dùng trọn bề ngang nên co giãn theo vw thoải mái hơn. */
  .hero h1{font-size:clamp(25px,7.2vw,46px)}
  .hero__media img{aspect-ratio:16/10}
  .hero__plate{max-width:170px;font-size:11px;padding:11px 13px}
}

/* ══ Dải số liệu ════════════════════════════════════════════════════ */
.stats{background:var(--navy);color:#fff}
.stats__in{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;padding:26px 0}
.stat{text-align:center;padding:6px 8px}
.stat b{display:block;font-family:var(--f-display);font-weight:800;font-size:clamp(22px,2.6vw,30px);color:var(--gold);letter-spacing:-.02em}
.stat span{display:block;margin-top:4px;font-size:12.5px;color:rgba(255,255,255,.72);line-height:1.4}
@media (max-width:640px){
  .stats__in{grid-template-columns:repeat(2,1fr);gap:14px}
  .stat{border-bottom:1px solid rgba(255,255,255,.1);padding-bottom:14px}
  .stat:nth-last-child(-n+2){border-bottom:0;padding-bottom:6px}
}

/* ══ Thẻ khoá học ═══════════════════════════════════════════════════ */
.courses{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;align-items:stretch}
@media (max-width:980px){.courses{grid-template-columns:1fr}}

.course{
  position:relative;border-radius:var(--r);overflow:hidden;
  padding:clamp(24px,2.4vw,32px);
  display:grid;gap:20px;
  grid-template-columns:minmax(0,1fr) minmax(0,.78fr);
  /* Hàng "feats" là 1fr: nó giãn ra để hai thẻ cao bằng nhau và nút bấm của
     cả hai luôn nằm cùng một đường, bất kể lịch học dài ngắn khác nhau. */
  grid-template-rows:auto auto 1fr auto;
  grid-template-areas:"head media" "specs media" "feats media" "foot foot";
}
.course--blue{background:var(--blue);color:#fff;box-shadow:0 20px 50px -26px rgba(22,87,240,.85)}
.course--navy{background:var(--navy);color:#fff;box-shadow:0 20px 50px -26px rgba(11,27,60,.9)}

.course__head{grid-area:head}
.course__name{
  font-family:var(--f-display);font-weight:800;font-size:clamp(18px,1.9vw,22px);
  text-transform:uppercase;letter-spacing:-.008em;color:#fff;line-height:1.12;
}
.course--navy .course__name{color:var(--gold)}
.course__tag{margin-top:8px;font-size:13.5px;line-height:1.5;color:rgba(255,255,255,.72);max-width:34ch}

.course__media{
  grid-area:media;align-self:start;
  margin:calc(-1 * clamp(24px,2.4vw,32px)) calc(-1 * clamp(24px,2.4vw,32px)) 0 0;
  border-bottom-left-radius:14px;overflow:hidden;
}
.course__media img,.course__media svg{width:100%;height:auto;display:block}

.course__specs{grid-area:specs;display:grid;gap:12px;align-content:start}
.spec{display:flex;align-items:center;gap:12px}
.spec svg{flex:none;width:21px;height:21px;opacity:.82}
.spec b{font-family:var(--f-display);font-weight:800;font-size:clamp(21px,2.5vw,29px);letter-spacing:-.02em;color:#fff;line-height:1}
.course--navy .spec b{color:#fff}
.spec .sm{font-family:var(--f-display);font-weight:700;font-size:13px;letter-spacing:.04em;text-transform:uppercase;color:rgba(255,255,255,.9);line-height:1.35}

.course__feats{grid-area:feats;display:grid;gap:9px;margin-top:2px}
.feat{display:flex;align-items:flex-start;gap:11px;font-size:14.5px;color:rgba(255,255,255,.94);line-height:1.45}
.feat svg{flex:none;width:18px;height:18px;margin-top:2px;color:#fff}
.course--navy .feat svg{color:var(--gold)}

.course__foot{grid-area:foot;display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:4px}
.course__foot .btn{flex:1 1 220px}
.pledge{
  flex:1 1 240px;display:flex;align-items:center;justify-content:center;gap:9px;
  border:1.5px solid rgba(255,255,255,.45);border-radius:10px;padding:13px 16px;
  font-family:var(--f-display);font-weight:600;font-size:11px;letter-spacing:.04em;
  text-transform:uppercase;color:#fff;text-align:center;line-height:1.3;
}
.pledge svg{flex:none;width:16px;height:16px}
.course--navy .pledge{border-color:rgba(233,199,123,.5);color:var(--gold)}

@media (max-width:760px){
  .course{grid-template-areas:"head head" "specs media" "feats feats" "foot foot"}
}
/* Dưới 400px mới xếp dọc — bản thiết kế cho điện thoại vẫn đặt ảnh CẠNH cột
   thông số, nên các máy 390/414px phải giữ nguyên hai cột. */
@media (max-width:400px){
  .course{grid-template-columns:1fr;grid-template-areas:"head" "specs" "media" "feats" "foot"}
  /* Bỏ lề âm phía trên: ở bố cục xếp dọc nó kéo ảnh đè lên dòng lịch học. */
  .course__media{
    margin:0 calc(-1 * clamp(24px,2.4vw,32px)) 0 calc(-1 * clamp(24px,2.4vw,32px));
    border-radius:12px;
  }
}

/* ══ Cấu hình máy ═══════════════════════════════════════════════════ */
.reqs{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.reqs__head{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  padding:20px clamp(20px,2.4vw,30px);
  background:linear-gradient(100deg,#fff6e6,#fffdf8);border-bottom:1px solid var(--line);
}
.reqs__badge{
  display:inline-flex;align-items:center;gap:8px;flex:none;
  background:var(--warn);color:#fff;border-radius:999px;padding:6px 14px;
  font-family:var(--f-display);font-weight:700;font-size:11.5px;letter-spacing:.09em;text-transform:uppercase;
}
.reqs__head p{font-size:14.5px;color:#7a4a12;margin:0;flex:1 1 320px;line-height:1.5}
.reqs__grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}
.req{padding:22px clamp(20px,2.4vw,28px);border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.req:nth-child(3n){border-right:0}
.req:nth-last-child(-n+3){border-bottom:0}
.req__ico{width:38px;height:38px;border-radius:10px;background:var(--blue-50);color:var(--blue);display:grid;place-items:center;margin-bottom:13px}
.req__ico svg{width:20px;height:20px}
.req__label{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-weight:600}
.req__value{font-family:var(--f-display);font-weight:800;font-size:17px;color:var(--ink);margin:5px 0 7px;line-height:1.25;letter-spacing:-.01em}
.req__note{font-size:13.5px;line-height:1.5;color:var(--body)}
@media (max-width:860px){
  .reqs__grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .req:nth-child(3n){border-right:1px solid var(--line)}
  .req:nth-child(2n){border-right:0}
  .req:nth-last-child(-n+3){border-bottom:1px solid var(--line)}
  .req:nth-last-child(-n+2){border-bottom:0}
}
@media (max-width:520px){
  .reqs__grid{grid-template-columns:1fr}
  .req{border-right:0!important;border-bottom:1px solid var(--line)!important}
  .req:last-child{border-bottom:0!important}
}
.reqs__howto{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:18px}
.howto{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-sm);padding:16px 18px}
.howto b{display:block;font-family:var(--f-display);font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink);margin-bottom:6px}
.howto span{font-size:13.5px;line-height:1.55;color:var(--body)}
@media (max-width:640px){.reqs__howto{grid-template-columns:1fr}}

/* ══ Ba bước ════════════════════════════════════════════════════════ */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0}
.step{display:flex;align-items:center;gap:16px;padding:20px clamp(16px,2vw,26px);border-right:1px solid var(--line)}
.step:last-child{border-right:0}
.step__ico{width:52px;height:52px;flex:none;border-radius:50%;background:var(--blue-50);color:var(--blue);display:grid;place-items:center}
.step__ico svg{width:24px;height:24px}
.step__num{font-family:var(--f-display);font-weight:800;font-size:26px;color:var(--blue);letter-spacing:-.03em;flex:none}
.step__txt h3{font-size:16.5px;font-weight:700;letter-spacing:-.008em;line-height:1.3}
.step__txt p{margin-top:6px;font-size:13.5px;line-height:1.55;color:var(--body)}
@media (max-width:900px){
  .steps{grid-template-columns:1fr}
  .step{border-right:0;border-bottom:1px solid var(--line)}
  .step:last-child{border-bottom:0}
}

/* ══ Lộ trình chi tiết ══════════════════════════════════════════════ */
.tabs{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:32px}
.tab{
  padding:12px 22px;border-radius:999px;border:1.5px solid var(--line-2);background:#fff;
  font-family:var(--f-display);font-weight:700;font-size:13px;letter-spacing:.06em;
  text-transform:uppercase;color:var(--body);transition:all .2s var(--ease);
}
.tab[aria-selected="true"]{background:var(--blue);border-color:var(--blue);color:#fff}
.tab:hover:not([aria-selected="true"]){border-color:var(--blue);color:var(--blue)}

.plan{display:grid;grid-template-columns:minmax(0,1.22fr) minmax(0,.78fr);gap:34px;align-items:start}
@media (max-width:940px){.plan{grid-template-columns:1fr;gap:26px}}
.days{display:grid;gap:14px}
.day{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:20px 22px;position:relative}
.day__top{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;margin-bottom:12px}
.day__time{
  font-family:var(--f-display);font-weight:800;font-size:12.5px;letter-spacing:.1em;
  text-transform:uppercase;color:#fff;background:var(--blue);border-radius:6px;padding:5px 11px;flex:none;
}
.day__title{font-family:var(--f-display);font-weight:800;font-size:18px;color:var(--ink);letter-spacing:-.012em}
.day ul{list-style:none;display:grid;gap:8px}
.day li{position:relative;padding-left:22px;font-size:14.5px;line-height:1.55}
.day li::before{
  content:"";position:absolute;left:3px;top:9px;width:7px;height:7px;
  border-radius:50%;background:var(--blue-100);border:2px solid var(--blue);
}
.aside{display:grid;gap:14px;position:sticky;top:calc(var(--nav-h) + 18px)}
@media (max-width:940px){.aside{position:static}}
.panel{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:22px}
.panel h3{font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-weight:700;margin-bottom:14px}
.panel ul{list-style:none;display:grid;gap:10px}
.panel li{display:flex;gap:10px;font-size:14.5px;line-height:1.5;align-items:flex-start}
.panel li svg{flex:none;width:17px;height:17px;margin-top:3px;color:var(--ok)}
.panel--img{padding:0;overflow:hidden}
.panel--img img{width:100%;height:auto;aspect-ratio:3/2;object-fit:cover}
/* height:auto là BẮT BUỘC: thuộc tính height="666" trên thẻ <img> được trình
   duyệt coi như khai báo CSS height, nên nếu không ghi đè thì chiều cao cố
   định thắng aspect-ratio và ảnh bị kéo dài ra. */

/* ══ Câu hỏi thường gặp ═════════════════════════════════════════════ */
.faqs{max-width:880px;margin-inline:auto;display:grid;gap:10px}
.faq{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden}
.faq summary{
  list-style:none;cursor:pointer;padding:18px 54px 18px 20px;position:relative;
  font-family:var(--f-display);font-weight:700;font-size:16px;color:var(--ink);line-height:1.4;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"";position:absolute;right:20px;top:50%;width:11px;height:11px;
  border-right:2.5px solid var(--blue);border-bottom:2.5px solid var(--blue);
  transform:translateY(-70%) rotate(45deg);transition:transform .25s var(--ease);
}
.faq[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.faq__a{padding:0 20px 20px;font-size:15px;line-height:1.68;color:var(--body)}

/* ══ Dải kêu gọi cuối ═══════════════════════════════════════════════ */
.cta{position:relative;overflow:hidden;background:var(--navy);color:#fff}
.cta__bg{position:absolute;inset:0;opacity:.34}
.cta__bg svg{width:100%;height:100%;object-fit:cover}
.cta__in{
  position:relative;display:flex;align-items:center;justify-content:space-between;
  gap:30px;flex-wrap:wrap;padding:clamp(40px,5vw,66px) 0;
}
.cta__l{display:flex;align-items:center;gap:26px;flex-wrap:wrap}
.cta h2{font-size:clamp(22px,2.8vw,34px);color:#fff;text-transform:uppercase;max-width:22ch}
.cta__r{font-family:var(--f-display);font-weight:700;font-size:12.5px;letter-spacing:.17em;
  text-transform:uppercase;color:rgba(255,255,255,.62);line-height:1.8;text-align:right}
@media (max-width:820px){
  .cta__in{flex-direction:column;align-items:flex-start;text-align:left}
  .cta__r{text-align:left}
  .cta h2{max-width:none}
}

/* ══ Chân trang ═════════════════════════════════════════════════════ */
.foot{background:#070f22;color:rgba(255,255,255,.66);padding:52px 0 28px;font-size:14.5px}
.foot__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:34px}
.foot .brand__row{color:#fff}
.foot .brand__sub{color:rgba(255,255,255,.45)}
.foot h4{font-family:var(--f-display);font-size:12.5px;letter-spacing:.12em;text-transform:uppercase;color:#fff;margin-bottom:14px;font-weight:700}
.foot ul{list-style:none;display:grid;gap:9px}
.foot a:hover{color:#fff}
.foot__about{margin-top:16px;max-width:40ch;line-height:1.65}
.foot__bar{margin-top:34px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.45)}
@media (max-width:820px){.foot__grid{grid-template-columns:1fr;gap:26px}}

/* ══ Cửa sổ đăng ký ═════════════════════════════════════════════════ */
.modal{
  position:fixed;inset:0;z-index:90;display:none;
  background:rgba(6,12,26,.62);backdrop-filter:blur(3px);
  padding:20px;overflow-y:auto;
}
.modal.open{display:block}
body.lock{overflow:hidden}
.modal__box{
  background:var(--cream);border-radius:var(--r);max-width:620px;margin:30px auto;
  box-shadow:0 40px 90px -30px rgba(3,10,26,.6);overflow:hidden;position:relative;
}
.modal__head{
  background:var(--navy);color:#fff;padding:22px 26px;
  display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
}
.modal__head h3{color:#fff;font-size:20px;text-transform:uppercase;letter-spacing:-.01em}
.modal__head p{font-size:13.5px;color:rgba(255,255,255,.7);margin-top:6px}
.modal__x{width:36px;height:36px;flex:none;border-radius:9px;display:grid;place-items:center;
  color:rgba(255,255,255,.75);border:1px solid rgba(255,255,255,.2);transition:all .2s}
.modal__x:hover{background:rgba(255,255,255,.12);color:#fff}
.modal__body{padding:26px}

.steps-bar{display:flex;gap:6px;padding:14px 26px;background:#fff;border-bottom:1px solid var(--line)}
.sbar{flex:1;display:flex;align-items:center;gap:8px;font-size:12px;font-weight:600;color:var(--muted)}
.sbar i{width:22px;height:22px;flex:none;border-radius:50%;display:grid;place-items:center;
  background:var(--line);color:#fff;font-style:normal;font-size:11.5px;font-weight:700}
.sbar.on{color:var(--ink)}
.sbar.on i{background:var(--blue)}
.sbar.done i{background:var(--ok)}

.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--ink);margin-bottom:7px}
.field label .req-star{color:#d23f3f}
.field input,.field select,.field textarea{
  width:100%;padding:13px 14px;border:1.5px solid var(--line-2);border-radius:10px;
  background:#fff;font-size:15px;transition:border-color .2s,box-shadow .2s;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(22,87,240,.13);
}
.field textarea{resize:vertical;min-height:84px}
.field.bad input,.field.bad select,.field.bad textarea{border-color:#d23f3f}
.field__err{display:none;margin-top:6px;font-size:13px;color:#d23f3f}
.field.bad .field__err{display:block}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:520px){.row2{grid-template-columns:1fr}}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}

.check{display:flex;gap:11px;align-items:flex-start;background:#fff;border:1.5px solid var(--line-2);
  border-radius:10px;padding:14px;font-size:13.5px;line-height:1.5;cursor:pointer}
.check input{width:18px;height:18px;flex:none;margin-top:1px;accent-color:var(--blue)}
.check.bad{border-color:#d23f3f}
.check a{color:var(--blue);font-weight:600;text-decoration:underline}

.pick{display:grid;gap:10px;margin-bottom:18px}
.pick label{
  display:flex;gap:12px;align-items:center;background:#fff;border:1.5px solid var(--line-2);
  border-radius:12px;padding:14px;cursor:pointer;transition:border-color .2s,box-shadow .2s;
}
.pick label:has(input:checked){border-color:var(--blue);box-shadow:0 0 0 3px rgba(22,87,240,.12)}
.pick input{width:18px;height:18px;flex:none;accent-color:var(--blue)}
.pick .nm{font-family:var(--f-display);font-weight:800;font-size:15px;color:var(--ink);text-transform:uppercase;letter-spacing:-.005em}
.pick .mt{font-size:12.5px;color:var(--muted);margin-top:3px}
.pick .pr{margin-left:auto;text-align:right;flex:none}
.pick .pr b{display:block;font-family:var(--f-display);font-weight:800;font-size:16px;color:var(--blue)}
.pick .pr span{font-size:11.5px;color:var(--muted)}

/* Bước chuyển khoản */
.pay{text-align:center}
.pay__qr{
  background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:18px;display:inline-block;box-shadow:var(--shadow);
}
.pay__qr canvas,.pay__qr img{width:216px;height:216px;display:block;image-rendering:pixelated}
.pay__brand{display:flex;align-items:center;justify-content:center;gap:8px;margin-bottom:12px;
  font-family:var(--f-display);font-weight:800;font-size:12px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--navy)}
.pay__brand i{width:7px;height:7px;border-radius:50%;background:var(--blue);font-style:normal}
.pay__hint{margin-top:12px;font-size:13px;color:var(--muted)}
.pay__rows{margin-top:20px;background:#fff;border:1px solid var(--line);border-radius:var(--r);text-align:left;overflow:hidden}
.prow{display:flex;align-items:center;gap:12px;padding:13px 16px;border-bottom:1px solid var(--line)}
.prow:last-child{border-bottom:0}
.prow__k{font-size:12.5px;color:var(--muted);width:118px;flex:none}
.prow__v{font-weight:600;color:var(--ink);font-size:15px;word-break:break-word;flex:1}
.prow__v.big{font-family:var(--f-display);font-weight:800;font-size:19px;color:var(--blue);letter-spacing:-.01em}
.prow__v.code{font-family:ui-monospace,'SF Mono',Consolas,monospace;letter-spacing:.06em;color:var(--blue)}
.copy{flex:none;width:34px;height:34px;border-radius:8px;border:1px solid var(--line-2);display:grid;place-items:center;color:var(--muted);transition:all .2s}
.copy:hover{border-color:var(--blue);color:var(--blue);background:var(--blue-50)}
.copy.ok{border-color:var(--ok);color:var(--ok)}
.note{display:flex;gap:10px;background:#fff8e8;border:1px solid #f2dfae;border-radius:10px;
  padding:13px 15px;font-size:13.5px;line-height:1.55;color:#7a4a12;text-align:left;margin-top:16px}
.note svg{flex:none;width:18px;height:18px;margin-top:1px;color:var(--warn)}

/* Bước hoàn tất */
.done{text-align:center;padding:12px 0}
.done__ico{width:74px;height:74px;border-radius:50%;background:#e6f7ef;color:var(--ok);
  display:grid;place-items:center;margin:0 auto 20px}
.done__ico svg{width:38px;height:38px}
.done h3{font-size:23px;text-transform:uppercase;margin-bottom:12px}
.done p{font-size:15px;line-height:1.65;max-width:42ch;margin:0 auto}
.done__box{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:18px;margin-top:22px;text-align:left}
.done__box .prow{padding:9px 0;border-bottom:1px dashed var(--line)}
.done__box .prow:last-child{border-bottom:0}

.alert{display:none;gap:10px;background:#fdecec;border:1px solid #f5c4c4;border-radius:10px;
  padding:13px 15px;font-size:14px;color:#a02222;margin-bottom:16px;line-height:1.5}
.alert.show{display:flex}
.alert svg{flex:none;width:18px;height:18px;margin-top:1px}

.spin{display:inline-block;width:16px;height:16px;border:2px solid rgba(255,255,255,.4);
  border-top-color:#fff;border-radius:50%;animation:sp .6s linear infinite}
@keyframes sp{to{transform:rotate(360deg)}}
.btn[disabled]{opacity:.62;pointer-events:none}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
}

/* Tiêu đề ba vế "Học thật · Làm thật · Vận hành thật" dài hơn bề rộng mặc
   định của .sec-head nên cần chỗ rộng hơn để nằm gọn một dòng trên màn lớn. */
.sec-head--wide{max-width:1040px}
.sec-head--wide h2{font-size:clamp(21px,2.9vw,36px)}