/* =========================================================================
   home-guest.css — Trang chủ khách (public/home-guest.php)
   Hướng "Chồng lớp, sản phẩm dẫn": nền có hạt nhiễu + quầng sáng, giao diện
   sản phẩm thật chồng lớp làm nhân vật chính, lưới 12 cột lệch ô.

   🚨 File này ĐỘC LẬP — trang chủ KHÔNG nạp landing.css nữa. Hai lý do:
      1. landing.css bind --kh-primary về --color-warning (AMBER) nên cả trang
         ra màu cam, sai nhận diện (thương hiệu là teal --color-primary).
      2. `.kh-page a` (0,1,1) đè `.kh-btn--primary` (0,1,0) làm chữ trên nút
         trùng màu nền — xem [gotcha_landing_css_kills_primary_button_text].
      Tách ra là hết cả hai, và sửa trang chủ không đụng 6 trang landing khác.

   🚨 0 hex cứng — chỉ var(--color-*) / color-mix(). Pre-commit chặn.
   ========================================================================= */

/* ── Nền trang ─────────────────────────────────────────────────────────── */
.hg {
    position: relative;
    font-family: var(--font-sans);
    color: var(--color-text);
    -webkit-font-smoothing: antialiased;
    background:
        radial-gradient(68% 46% at 78% -4%,  color-mix(in srgb, var(--color-accent)  20%, transparent), transparent 62%),
        radial-gradient(56% 40% at 2%  10%,  color-mix(in srgb, var(--color-primary) 15%, transparent), transparent 60%),
        var(--color-bg);
}
/* Hạt nhiễu phủ toàn trang — phá cảm giác "phẳng số". SVG inline, không thêm request. */
.hg::before {
    content: ''; position: absolute; inset: 0; z-index: 0; pointer-events: none; opacity: .55;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.05'/%3E%3C/svg%3E");
}
.hg > * { position: relative; z-index: 1; }
.hg img { max-width: 100%; height: auto; display: block; }

.hg-wrap { max-width: 1180px; margin: 0 auto; padding: 0 var(--space-6); }

/* ── Nút ───────────────────────────────────────────────────────────────── */
.hg-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 10px;
    padding: 16px 28px; border-radius: 14px;
    font-family: inherit; font-size: 15.5px; font-weight: var(--fw-bold);
    text-decoration: none; border: 1.5px solid transparent; cursor: pointer;
    transition: transform var(--dur-base) var(--ease), box-shadow var(--dur-base) var(--ease),
                background var(--dur-base) var(--ease), border-color var(--dur-base) var(--ease);
}
.hg-btn:focus-visible { outline: 3px solid color-mix(in srgb, var(--color-primary) 40%, transparent); outline-offset: 2px; }
.hg-btn--fill {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-on-dark);
    box-shadow: 0 16px 36px -14px color-mix(in srgb, var(--color-primary) 90%, transparent);
}
.hg-btn--fill:hover  { transform: translateY(-2px); box-shadow: 0 22px 46px -16px color-mix(in srgb, var(--color-primary) 95%, transparent); color: var(--color-on-dark); }
.hg-btn--fill:active { transform: translateY(0); }
.hg-btn--ghost { background: var(--color-surface); color: var(--color-ink); border-color: var(--color-border); }
.hg-btn--ghost:hover { border-color: var(--color-primary); color: var(--color-primary); }
.hg-btn--onDark { background: var(--color-on-dark); color: var(--color-primary-deep); }
.hg-btn--onDark:hover { transform: translateY(-2px); color: var(--color-primary-deep); }
.hg-btn--lineDark {
    background: color-mix(in srgb, var(--color-on-dark) 14%, transparent); color: var(--color-on-dark);
    border-color: color-mix(in srgb, var(--color-on-dark) 44%, transparent);
}
.hg-btn--lineDark:hover { background: color-mix(in srgb, var(--color-on-dark) 24%, transparent); color: var(--color-on-dark); }

/* ── Hero ──────────────────────────────────────────────────────────────── */
.hg-hero { padding: var(--space-16) 0 0; text-align: center; }
.hg-pill {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 8px 16px; border-radius: var(--radius-pill);
    font-size: 12.5px; font-weight: var(--fw-bold);
    background: var(--color-surface); color: var(--color-primary);
    border: 1px solid color-mix(in srgb, var(--color-primary) 28%, transparent);
    box-shadow: 0 8px 22px -12px color-mix(in srgb, var(--color-primary) 70%, transparent);
}
.hg-h1 {
    font-size: clamp(36px, 5.2vw, 68px); line-height: 1.03; letter-spacing: -.04em;
    font-weight: var(--fw-extrabold); color: var(--color-ink);
    margin: var(--space-5) auto 0; max-width: 17ch; text-wrap: balance;
}
.hg-lead {
    margin: var(--space-5) auto 0; max-width: 58ch;
    font-size: 17.5px; line-height: 1.6; color: var(--color-secondary-text); text-wrap: pretty;
}
.hg-hero__cta { display: flex; flex-wrap: wrap; gap: var(--space-3); justify-content: center; margin-top: var(--space-8); }
.hg-trust {
    display: inline-flex; flex-wrap: wrap; align-items: center; justify-content: center;
    gap: var(--space-2) var(--space-5); margin-top: var(--space-4);
    font-size: 13.5px; color: var(--color-muted);
}
.hg-trust b { color: var(--color-ink); font-variant-numeric: tabular-nums; }
.hg-trust .hg-stars i { color: var(--color-warning); font-size: 12.5px; margin-right: -1px; }
.hg-trust .hg-stars i.is-off { color: var(--color-border); }

/* ── Sân khấu sản phẩm: các tấm CHỒNG lên nhau ─────────────────────────── */
.hg-stage { position: relative; margin: var(--space-12) auto 0; max-width: 980px; height: 400px; }
.hg-panel {
    position: absolute; border-radius: 20px;
    background: var(--color-surface); border: 1px solid var(--color-border);
    box-shadow: 0 40px 80px -34px color-mix(in srgb, var(--color-primary) 58%, transparent),
                0 6px 18px -10px  color-mix(in srgb, var(--color-ink) 26%, transparent);
}
/* 🚨 Hai tấm bên phải ĐỌC ĐƯỢC, không chỉ để trang trí: tấm giữa che ngang là mất
   tiêu đề ("FLASHCARD HÔM NA…") và mất chữ số ("12" còn "2"). Nên tấm giữa hẹp lại
   và hai tấm bên tụt xuống thấp hơn — chồng lớp ở MÉP, không chồng lên phần chữ. */
.hg-panel--main  { left: 50%; transform: translateX(-50%); top: 0; width: min(556px, 53%); padding: var(--space-6); z-index: 3; }
.hg-panel--left  { left: 0;  top: 196px; width: min(268px, 26%); padding: var(--space-4); transform: rotate(-3deg); transform-origin: bottom right; z-index: 2; }
.hg-panel--right { right: 0; top: 214px; width: min(276px, 27%); padding: var(--space-4); transform: rotate(2.5deg); transform-origin: bottom left; z-index: 2; }

.hg-pn__hd { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); margin-bottom: var(--space-5); }
.hg-pn__word { font-size: clamp(22px, 2.4vw, 30px); font-weight: var(--fw-extrabold); letter-spacing: -.025em; color: var(--color-ink); }
.hg-pn__ipa  { font-family: var(--font-mono); font-size: 13.5px; color: var(--color-muted); margin-top: 2px; }
.hg-ring { width: 74px; height: 74px; border-radius: 50%; display: grid; place-items: center; flex-shrink: 0;
           background: conic-gradient(var(--color-primary) 0 88%, var(--color-line) 88% 100%); }
.hg-ring span { width: 58px; height: 58px; border-radius: 50%; background: var(--color-surface);
                display: grid; place-items: center; font-size: 19px; font-weight: var(--fw-extrabold);
                color: var(--color-primary); font-variant-numeric: tabular-nums; }
.hg-phon { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: var(--space-4); }
.hg-ph { padding: 8px 13px; border-radius: 10px; font-family: var(--font-mono); font-size: 13.5px; font-weight: var(--fw-semibold);
         background: var(--color-primary-soft); color: var(--color-primary-deep); }
.hg-ph.is-bad { background: var(--color-warning-soft); color: var(--color-warning-deep);
                box-shadow: inset 0 0 0 1.5px color-mix(in srgb, var(--color-warning) 55%, transparent); }
.hg-tip { display: flex; gap: 10px; align-items: flex-start; padding: 13px 15px; border-radius: 12px;
          font-size: 13.5px; line-height: 1.55; background: var(--color-soft); color: var(--color-secondary-text); }
.hg-tip i { color: var(--color-accent); margin-top: 3px; flex-shrink: 0; }
.hg-wave { display: flex; align-items: flex-end; gap: 3px; height: 38px; margin-top: var(--space-4); }
.hg-wave i { flex: 1; border-radius: 3px; background: color-mix(in srgb, var(--color-primary) 42%, transparent); }
.hg-pn__t { font-size: 11.5px; font-weight: var(--fw-bold); letter-spacing: .1em; text-transform: uppercase;
            color: var(--color-muted); margin-bottom: var(--space-3); }
.hg-fc      { font-size: 19px; font-weight: var(--fw-extrabold); color: var(--color-ink); letter-spacing: -.02em; }
.hg-fc__sub { font-size: 12.5px; color: var(--color-muted); margin-top: 4px; line-height: 1.4; }
.hg-fc__row { display: flex; gap: 6px; margin-top: var(--space-4); }
.hg-fc__row b { flex: 1; text-align: center; padding: 8px 0; border-radius: 9px; font-size: 11.5px; font-weight: var(--fw-bold);
                background: var(--color-soft); color: var(--color-secondary-text); }
.hg-fc__row b.is-on { background: var(--color-secondary-soft); color: var(--color-secondary-deep); }
.hg-streak { display: flex; align-items: center; gap: var(--space-3); }
.hg-flame { width: 42px; height: 42px; border-radius: 13px; display: grid; place-items: center; font-size: 18px;
            background: var(--color-warning-soft); color: var(--color-warning-deep); flex-shrink: 0; }
.hg-streak b { font-size: 21px; color: var(--color-ink); font-variant-numeric: tabular-nums; }
.hg-streak span { font-size: 12.5px; color: var(--color-muted); }
.hg-days { display: flex; gap: 4px; margin-top: var(--space-3); }
.hg-days i { flex: 1; height: 24px; border-radius: 6px; background: var(--color-secondary-soft); }
.hg-days i.is-off { background: var(--color-line); }

/* ── Dải số liệu chồng lên sân khấu ────────────────────────────────────── */
.hg-stats {
    position: relative; z-index: 4; margin-top: -46px;
    border-radius: 20px; background: var(--color-surface); border: 1px solid var(--color-border);
    display: grid; grid-template-columns: repeat(4, 1fr);
    box-shadow: 0 30px 70px -36px color-mix(in srgb, var(--color-primary) 62%, transparent);
}
.hg-stat { padding: var(--space-6) var(--space-4); text-align: center; position: relative; }
.hg-stat + .hg-stat::before { content: ''; position: absolute; left: 0; top: 24%; bottom: 24%; width: 1px; background: var(--color-line); }
.hg-stat b { display: block; font-size: clamp(21px, 2.3vw, 31px); font-weight: var(--fw-extrabold);
             letter-spacing: -.02em; color: var(--color-ink); font-variant-numeric: tabular-nums; }
.hg-stat span { display: block; margin-top: 5px; font-size: 12.5px; color: var(--color-muted); line-height: 1.4; }

/* ── Khối nội dung ─────────────────────────────────────────────────────── */
.hg-sec { padding: var(--space-20) 0; }
.hg-sec--tight { padding-top: var(--space-16); }
.hg-head { max-width: 640px; margin-bottom: var(--space-10); }
.hg-head--center { margin-inline: auto; text-align: center; }
.hg-kicker { display: inline-flex; align-items: center; gap: 9px; font-size: 12px; font-weight: var(--fw-bold);
             letter-spacing: .14em; text-transform: uppercase; color: var(--color-primary); }
.hg-kicker i { font-size: 11px; }
.hg-h2 { font-size: clamp(26px, 3vw, 40px); font-weight: var(--fw-extrabold); letter-spacing: -.03em;
         line-height: 1.13; color: var(--color-ink); margin: var(--space-3) 0 0; text-wrap: balance; }
.hg-sub { margin: var(--space-4) 0 0; color: var(--color-muted); font-size: 15.5px; line-height: 1.6; text-wrap: pretty; }

/* Lưới 12 cột lệch ô — KHÔNG phải 3 cột đều nhau */
.hg-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: var(--space-4); }
.hg-c {
    border-radius: 18px; padding: var(--space-6);
    background: var(--color-surface); border: 1px solid var(--color-border);
    box-shadow: 0 10px 30px -22px color-mix(in srgb, var(--color-primary) 70%, transparent);
    transition: transform var(--dur-base) var(--ease), box-shadow var(--dur-base) var(--ease), border-color var(--dur-base) var(--ease);
}
.hg-c:hover { transform: translateY(-4px); border-color: color-mix(in srgb, var(--color-primary) 40%, transparent);
              box-shadow: 0 26px 54px -26px color-mix(in srgb, var(--color-primary) 75%, transparent); }
/* Khai đủ 3→12. Thiếu một cỡ là ô đó rơi về span 1 và bị bóp thành cột chữ dựng đứng. */
.hg-c--3  { grid-column: span 3; }  .hg-c--4  { grid-column: span 4; }
.hg-c--5  { grid-column: span 5; }  .hg-c--6  { grid-column: span 6; }
.hg-c--7  { grid-column: span 7; }  .hg-c--8  { grid-column: span 8; }
.hg-c--9  { grid-column: span 9; }  .hg-c--10 { grid-column: span 10; }
.hg-c--11 { grid-column: span 11; } .hg-c--12 { grid-column: span 12; }
/* Ô tối: gradient ĐẬM để chữ trắng còn tương phản — bản nháp dùng gradient nhạt nên chữ chìm. */
.hg-c--dark {
    color: var(--color-on-dark); border-color: transparent;
    background: radial-gradient(120% 140% at 92% 2%, color-mix(in srgb, var(--color-accent) 52%, transparent), transparent 56%),
                linear-gradient(145deg, var(--color-primary-deep) 0%, var(--color-primary-deep) 34%, var(--color-primary) 100%);
    box-shadow: 0 24px 54px -24px color-mix(in srgb, var(--color-primary) 85%, transparent);
}
.hg-c--dark .hg-c__title { color: var(--color-on-dark); }
.hg-c--dark .hg-c__desc  { color: color-mix(in srgb, var(--color-on-dark) 92%, transparent); }
.hg-ic { width: 44px; height: 44px; border-radius: 13px; display: grid; place-items: center; font-size: 17px;
         margin-bottom: var(--space-4); background: var(--color-primary-soft); color: var(--color-primary); }
.hg-ic--accent { background: var(--color-accent-soft);    color: var(--color-accent); }
.hg-ic--green  { background: var(--color-secondary-soft); color: var(--color-secondary); }
.hg-ic--amber  { background: var(--color-warning-soft);   color: var(--color-warning-deep); }
.hg-c--dark .hg-ic { background: color-mix(in srgb, var(--color-on-dark) 20%, transparent); color: var(--color-on-dark); }
.hg-c__title { margin: 0 0 8px; font-size: 17px; font-weight: var(--fw-bold); color: var(--color-ink); letter-spacing: -.01em; }
.hg-c__desc  { margin: 0; font-size: 14px; line-height: 1.6; color: var(--color-muted); }

/* ── Thử ngay ──────────────────────────────────────────────────────────── */
.hg-try__form { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-5); }
.hg-try__field { position: relative; flex: 1 1 190px; display: flex; align-items: center; }
.hg-try__field i { position: absolute; left: 14px; color: var(--color-mute2); font-size: 14px; pointer-events: none; }
.hg-try__field input {
    width: 100%; height: var(--btn-h-lg); padding: 0 var(--space-4) 0 38px;
    font-family: var(--font-sans); font-size: var(--fs-body); color: var(--color-text);
    background: var(--color-bg); border: 1px solid var(--color-border); border-radius: 12px;
    transition: border-color var(--dur-base) var(--ease), box-shadow var(--dur-base) var(--ease);
}
.hg-try__field input::placeholder { color: var(--color-mute2); }
.hg-try__field input:focus { outline: none; border-color: var(--color-primary); box-shadow: var(--shadow-focus); }
.hg-try__actions { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-5); }

/* ── Chương trình học ──────────────────────────────────────────────────── */
.hg-track { display: flex; flex-direction: column; gap: var(--space-2); text-decoration: none; }
.hg a.hg-track { color: var(--color-text); }
.hg a.hg-track:hover { color: var(--color-text); }
.hg-track__name { display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
                  font-size: 18px; font-weight: var(--fw-bold); color: var(--color-ink); margin: var(--space-3) 0 0; }
.hg-track__desc { font-size: 14px; color: var(--color-muted); line-height: 1.6; margin: 0; flex: 1; }
.hg-track__go { display: inline-flex; align-items: center; gap: 6px; margin-top: var(--space-4);
                font-size: 13.5px; font-weight: var(--fw-semibold); color: var(--color-primary); }
.hg-track__go i { font-size: 11px; transition: transform var(--dur-base) var(--ease); }
.hg a.hg-track:hover .hg-track__go i { transform: translateX(3px); }
.hg-track--soon { background: var(--color-soft); border-style: dashed; box-shadow: none; }
.hg-track--soon:hover { transform: none; box-shadow: none; border-color: var(--color-border); }
.hg-badge { display: inline-flex; align-items: center; gap: 5px; padding: 3px 10px; border-radius: var(--radius-pill);
            font-size: 11px; font-weight: var(--fw-bold); letter-spacing: .04em; text-transform: uppercase;
            background: var(--color-accent-soft); color: var(--color-accent); }

/* ── Ba bước ───────────────────────────────────────────────────────────── */
.hg-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); counter-reset: hgstep; }
.hg-step { position: relative; padding: var(--space-6) var(--space-6) var(--space-6) var(--space-6);
           border-radius: 18px; background: var(--color-surface); border: 1px solid var(--color-border);
           box-shadow: 0 10px 30px -24px color-mix(in srgb, var(--color-primary) 70%, transparent); }
.hg-step__n { width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center;
              font-size: 16px; font-weight: var(--fw-extrabold); margin-bottom: var(--space-4);
              background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
              color: var(--color-on-dark);
              box-shadow: 0 10px 22px -10px color-mix(in srgb, var(--color-primary) 85%, transparent); }
.hg-step h3 { margin: 0 0 6px; font-size: 16.5px; font-weight: var(--fw-bold); color: var(--color-ink); }
.hg-step p  { margin: 0; font-size: 14px; color: var(--color-muted); line-height: 1.6; }

/* ── Tường đánh giá ────────────────────────────────────────────────────── */
.hg-rv { columns: 3; column-gap: var(--space-4); }
.hg-rv__item { break-inside: avoid; margin: 0 0 var(--space-4); padding: var(--space-5);
               border-radius: 16px; background: var(--color-surface); border: 1px solid var(--color-border);
               box-shadow: 0 10px 28px -24px color-mix(in srgb, var(--color-primary) 70%, transparent); }
.hg-rv__stars { color: var(--color-warning); font-size: 12.5px; margin-bottom: var(--space-3); }
.hg-rv__stars i.is-off { color: var(--color-border); }
.hg-rv__quote { margin: 0 0 var(--space-4); font-size: 14.5px; line-height: 1.65; color: var(--color-secondary-text); }
.hg-rv__by { display: flex; align-items: center; gap: var(--space-3); }
.hg-rv__av { width: 36px; height: 36px; border-radius: 11px; display: grid; place-items: center; flex-shrink: 0;
             font-size: 14px; font-weight: var(--fw-bold); color: var(--color-on-dark);
             background: linear-gradient(135deg, var(--color-primary), var(--color-accent)); }
.hg-rv__nm { font-size: 13.5px; font-weight: var(--fw-bold); color: var(--color-ink); }
.hg-rv__dt { font-size: 12px; color: var(--color-muted); }

/* ── FAQ ───────────────────────────────────────────────────────────────── */
.hg-faq { max-width: 820px; margin: 0 auto; }
.hg-faq__item { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: 14px;
                margin-bottom: var(--space-3); overflow: hidden;
                transition: border-color var(--dur-base) var(--ease), box-shadow var(--dur-base) var(--ease); }
.hg-faq__item[open] { border-color: color-mix(in srgb, var(--color-primary) 45%, transparent);
                      box-shadow: 0 14px 34px -26px color-mix(in srgb, var(--color-primary) 80%, transparent); }
.hg-faq__item > summary { padding: var(--space-5) var(--space-6); cursor: pointer; list-style: none;
                          display: flex; align-items: center; justify-content: space-between; gap: var(--space-3);
                          font-weight: var(--fw-semibold); font-size: 15.5px; color: var(--color-ink); }
.hg-faq__item > summary::-webkit-details-marker { display: none; }
.hg-faq__item > summary::after { content: '\f067'; font-family: 'Font Awesome 6 Free'; font-weight: 900;
                                 font-size: 12px; color: var(--color-muted); flex-shrink: 0; }
.hg-faq__item[open] > summary::after { content: '\f068'; color: var(--color-primary); }
.hg-faq__body { padding: 0 var(--space-6) var(--space-5); color: var(--color-text); line-height: 1.7; font-size: 14.5px; }
.hg-faq__body b { color: var(--color-ink); }

/* ── CTA chốt ──────────────────────────────────────────────────────────── */
.hg-cta { position: relative; overflow: hidden; border-radius: 26px; padding: var(--space-16) var(--space-8);
          color: var(--color-on-dark); text-align: center;
          background: radial-gradient(90% 120% at 88% 0%, color-mix(in srgb, var(--color-accent) 55%, transparent), transparent 58%),
                      linear-gradient(140deg, var(--color-primary-deep) 0%, var(--color-primary) 62%, var(--color-secondary-deep) 100%);
          box-shadow: 0 40px 90px -40px color-mix(in srgb, var(--color-primary) 90%, transparent); }
.hg-cta::before { content: ''; position: absolute; inset: 0; pointer-events: none; opacity: .4;
                  background-image: radial-gradient(color-mix(in srgb, var(--color-on-dark) 28%, transparent) 1px, transparent 1px);
                  background-size: 20px 20px;
                  -webkit-mask-image: linear-gradient(180deg, rgba(0,0,0,.85), transparent 78%);
                          mask-image: linear-gradient(180deg, rgba(0,0,0,.85), transparent 78%); }
.hg-cta::after { content: ''; position: absolute; right: -140px; top: -180px; width: 520px; height: 520px; border-radius: 50%;
                 border: 1px solid color-mix(in srgb, var(--color-on-dark) 22%, transparent);
                 box-shadow: 0 0 0 54px color-mix(in srgb, var(--color-on-dark) 6%, transparent); pointer-events: none; }
.hg-cta__in { position: relative; z-index: 1; max-width: 680px; margin: 0 auto; }
.hg-cta h2 { color: var(--color-on-dark); font-size: clamp(26px, 3.4vw, 40px); font-weight: var(--fw-extrabold);
             letter-spacing: -.03em; line-height: 1.12; margin: 0 0 var(--space-4); text-wrap: balance; }
.hg-cta p { color: color-mix(in srgb, var(--color-on-dark) 90%, transparent); font-size: 16px; line-height: 1.6; margin: 0 0 var(--space-6); }
.hg-cta__actions { display: flex; flex-wrap: wrap; gap: var(--space-3); justify-content: center; }
.hg-cta__mascot { position: absolute; left: 3%; bottom: 0; width: 168px; opacity: .95; pointer-events: none; }

/* ── Máy tính bảng ─────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
    .hg-rv { columns: 2; }
    .hg-c--3, .hg-c--4, .hg-c--5 { grid-column: span 6; }
    .hg-c--6, .hg-c--7, .hg-c--8, .hg-c--9,
    .hg-c--10, .hg-c--11, .hg-c--12 { grid-column: span 12; }
    .hg-cta__mascot { display: none; }
}

/* ── Điện thoại ────────────────────────────────────────────────────────── */
@media (max-width: 820px) {
    .hg-hero { padding-top: var(--space-10); }
    /* Bỏ chồng lớp: xếp dọc, giữ đủ chữ thay vì cắt cụt. */
    .hg-stage { height: auto; display: grid; gap: var(--space-3); margin-top: var(--space-8); }
    .hg-panel { position: static; transform: none; width: auto; }
    .hg-panel--left, .hg-panel--right { transform: none; }
    .hg-stats { margin-top: var(--space-6); grid-template-columns: repeat(2, 1fr); }
    .hg-stat:nth-child(3)::before, .hg-stat:nth-child(1)::before { display: none; }
    .hg-stat:nth-child(3), .hg-stat:nth-child(4) { border-top: 1px solid var(--color-line); }
    .hg-sec { padding: var(--space-12) 0; }
    /* 🚨 PHẢI liệt kê ĐỦ 3→12. Sót một cỡ (vd --12) là ô đó giữ `span 12` trên lưới
       1 cột → grid tự đẻ 12 cột ngầm → cả khối bị bóp thành các cột chữ dựng đứng. */
    .hg-grid { grid-template-columns: 1fr; }
    .hg-c--3,  .hg-c--4,  .hg-c--5,  .hg-c--6, .hg-c--7,
    .hg-c--8,  .hg-c--9,  .hg-c--10, .hg-c--11, .hg-c--12 { grid-column: span 1; }
    .hg-steps { grid-template-columns: 1fr; }
    .hg-rv { columns: 1; }
    .hg-hero__cta .hg-btn { width: 100%; }
    .hg-try__form { flex-direction: column; }
    .hg-try__form .hg-btn { width: 100%; }
    .hg-cta { padding: var(--space-10) var(--space-5); border-radius: 20px; }
}