/* ==========================================================================
   Trang chủ – chỉ nạp trên front page. Desktop theo Figma 1440, mobile theo 390.
   ========================================================================== */

.section--tight { padding-block: clamp(24px, 3vw, 40px); }

/* ---------------- HERO ---------------- */
.hero { position: relative; isolation: isolate; overflow: hidden; padding-top: clamp(96px, 11vw, 160px); }
.hero__bg { position: absolute; inset: 0; z-index: -3; }
.hero__bg picture, .hero__bg img { width: 100%; height: 100%; object-fit: cover; }
.hero::before { /* lớp tối dần + vignette giữa để chữ nổi */
  content: ""; position: absolute; inset: 0; z-index: -2;
  background:
    radial-gradient(60% 45% at 50% 40%, rgb(10 7 24 / .55), transparent 70%),
    linear-gradient(180deg, rgb(10 7 24 / .55), rgb(10 7 24 / .25) 45%, var(--bg-base) 100%);
}
.hero::after { /* quầng sáng tím sau tiêu đề */
  content: ""; position: absolute; z-index: -1; left: 50%; top: 120px; width: min(900px, 120vw); height: 500px; translate: -50% 0;
  background: radial-gradient(closest-side, rgb(168 85 247 / .35), transparent); pointer-events: none;
}
.hero__inner { position: static; padding-bottom: clamp(36px, 5vw, 64px); }
.hero__content { position: static; display: flex; flex-direction: column; align-items: center; text-align: center; gap: 24px; }
.hero__title {
  font-size: clamp(2.625rem, 1.2rem + 5.4vw, 4.875rem); /* 42 → 78 */
  line-height: 1.06; letter-spacing: -0.005em; font-weight: 800;
  text-shadow: 0 0 40px rgb(168 85 247 / .35);
}
.hero__title .text-gradient { text-shadow: none; filter: drop-shadow(0 0 30px rgb(168 85 247 / .35)); }
.hero__sub { color: var(--text-secondary); font-size: clamp(.9375rem, .85rem + .4vw, 1.25rem); font-weight: 500; white-space: pre; }
.hero__form { width: 100%; display: flex; justify-content: center; position: relative; z-index: 2; }
.hero__chips { margin: 0; padding: 0; position: relative; z-index: 2; }

/* Hình 3D: desktop đặt tuyệt đối hai bên ô tải */
.hero__visuals { position: absolute; inset: 0; pointer-events: none; }
.hero__art { position: absolute; }
.hero__art::after { /* "sàn" phát sáng dưới hình */
  content: ""; position: absolute; left: 10%; right: 10%; bottom: -10px; height: 56px; z-index: -1;
  background: radial-gradient(closest-side, var(--_floor, rgb(168 85 247 / .65)), transparent);
}
/* Vị trí lấy từ Figma (hero 1440): robot x −14, đáy cách 35px trên dải chữ; video x 1072, đáy cách 110px */
.hero__art--robot { width: clamp(250px, 24.3vw, 350px); left: max(-14px, calc(50% - 734px)); bottom: 70px; }
.hero__art--video { width: clamp(240px, 25vw, 360px); right: max(8px, calc(50% - 712px)); bottom: 150px; --_floor: rgb(34 211 238 / .55); }
.hero__art picture, .hero__art img { width: 100%; height: auto; }
.hero .marquee { position: relative; z-index: 3; }

@media (max-width: 1100px) {
  .hero__art--robot { width: 230px; left: -30px; bottom: 140px; }
  .hero__art--video { width: 210px; right: -20px; bottom: 170px; }
}
/* Mobile: hình 3D thành một hàng giữa phụ đề và ô tải (đúng Figma 390) */
@media (max-width: 860px) {
  .hero__content { gap: 18px; }
  .hero__sub { white-space: normal; }
  .hero__visuals { position: relative; inset: auto; width: min(350px, 100%); height: 190px; }
  .hero__art--robot { width: 190px; left: 10px; bottom: auto; top: -6px; }
  .hero__art--video { width: 160px; right: 0; bottom: auto; top: 50px; }
  .hero__chips { display: grid; grid-template-columns: repeat(2, auto); justify-content: center; gap: 8px; }
  .hero__chips .chip { font-size: .8125rem; padding: 7px 14px 7px 9px; }
}

/* ---------------- WHY / BENTO ---------------- */
.why { overflow: hidden; }
.why__grid-bg { /* lưới mờ, mờ dần ra rìa */
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgb(255 255 255 / .05) 1px, transparent 1px),
    linear-gradient(90deg, rgb(255 255 255 / .05) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(70% 60% at 50% 45%, #000 20%, transparent 75%);
  mask-image: radial-gradient(70% 60% at 50% 45%, #000 20%, transparent 75%);
}
.bento { display: grid; gap: 24px; grid-template-columns: repeat(12, 1fr); }
.bento .card { border-radius: 15px; }
.bento h3 { margin-top: 14px; }
.bento p { margin-top: 8px; }
.bento__a { grid-column: span 6; grid-row: span 2; display: flex; flex-direction: column; justify-content: space-between; --_glow: var(--pink); }
.bento__b { grid-column: span 6; }
.bento__c, .bento__d { grid-column: span 3; min-height: 220px; display: flex; flex-direction: column; justify-content: flex-end; }
.bento__s { grid-column: span 4; }

.before-after { display: flex; align-items: center; justify-content: center; gap: 18px; margin-bottom: 24px; }
.ba-frame { position: relative; margin: 0; display: grid; justify-items: center; gap: 10px; }
.ba-frame__img { display: block; width: 196px; height: 250px; border-radius: 14px; overflow: hidden; border: 1px solid rgb(255 255 255 / .18); }
.ba-frame__img img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.5); transform-origin: 50% 22%; }
.ba-frame--after .ba-frame__img { border: 2px solid transparent; background: linear-gradient(var(--bg-raised), var(--bg-raised)) padding-box, linear-gradient(90deg, var(--pink), var(--cyan)) border-box; box-shadow: 0 0 30px rgb(255 79 216 / .45); }
.ba-frame:not(.ba-frame--after) .ba-frame__img::after { content: ""; position: absolute; inset: 0 0 34px; border-radius: 14px; background: rgb(10 7 24 / .25); }
.ba-wm { position: absolute; display: inline-flex; align-items: center; gap: 6px; padding: 5px 8px; border-radius: 8px; background: rgb(0 0 0 / .4); color: #fff; font-size: .6875rem; font-weight: 700; white-space: nowrap; z-index: 1; }
.ba-wm--1 { left: 12px; top: 196px; }
.ba-wm--2 { left: 70px; top: 40px; opacity: .7; }
.ba-arrow { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 50%; color: #fff; flex: none;
  background: linear-gradient(135deg, var(--pink), var(--violet)); box-shadow: 0 0 24px rgb(255 79 216 / .6), inset 0 1px 1px rgb(255 255 255 / .35); }
.ba-check { position: absolute; right: 12px; top: 12px; display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; color: #fff;
  background: linear-gradient(135deg, var(--cyan), var(--indigo)); box-shadow: 0 0 14px rgb(34 211 238 / .7); }

.speed { display: flex; justify-content: space-between; gap: 16px; height: 100%; }
.speed__visual { display: grid; justify-items: end; align-content: space-between; }
.speed__num { font-size: clamp(3.5rem, 2rem + 4vw, 6rem); font-weight: 900; letter-spacing: -0.005em; line-height: 1;
  background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; filter: drop-shadow(0 0 20px rgb(168 85 247 / .5)); }
.speed__bars { display: flex; align-items: flex-end; gap: 6px; height: 64px; }
.speed__bars i { display: block; width: 16px; border-radius: 5px; background: linear-gradient(180deg, var(--cyan), var(--violet)); }

.big-figure { font-size: clamp(3.25rem, 2rem + 3vw, 5.5rem); font-weight: 900; letter-spacing: -0.005em; line-height: 1; margin-bottom: auto;
  background: linear-gradient(180deg, #fff, var(--violet-soft)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.big-figure--brand { background: var(--grad-text); -webkit-background-clip: text; background-clip: text; font-size: clamp(3rem, 2rem + 2vw, 3rem); }
.bento__hd { position: absolute !important; right: 18px; top: 4px; width: 120px; rotate: -8deg; filter: drop-shadow(0 0 20px rgb(34 211 238 / .6)); }

@media (max-width: 1024px) {
  .bento__a, .bento__b { grid-column: span 12; grid-row: auto; }
  .bento__c, .bento__d { grid-column: span 6; }
  .bento__s { grid-column: span 12; display: flex; align-items: center; gap: 14px; }
  .bento__s h3 { margin: 0; font-size: 1rem; }
  .bento__s p { display: none; }
  .bento__s .icon-tile { --_size: 44px; }
}
@media (max-width: 640px) {
  .bento { gap: 12px; }
  .bento .card { border-radius: 14px; }
  .bento__c, .bento__d { min-height: 0; padding: 18px; }
  .bento__c h3, .bento__d h3 { font-size: .9375rem; }
  .bento__c p, .bento__d p { display: none; }
  .bento__hd { width: 52px; right: 10px; top: 10px; }
  .before-after { gap: 10px; }
  .ba-frame__img { width: 128px; height: 164px; border-radius: 12px; }
  .ba-wm { font-size: .5rem; padding: 3px 6px; }
  .ba-wm--1 { top: 130px; left: 8px; } .ba-wm--2 { top: 24px; left: 40px; }
  .ba-arrow { width: 36px; height: 36px; }
  .ba-check { width: 24px; height: 24px; right: 8px; top: 8px; }
  .speed { align-items: center; }
  .speed .icon-tile, .speed p { display: none; }
  .speed h3 { margin: 0; }
  .speed__bars { display: none; }
  .speed__num { font-size: 3.5rem; }
}

/* ---------------- BANNER ---------------- */
.promo {
  position: relative; isolation: isolate; overflow: hidden;
  display: grid; grid-template-columns: 540px 1fr; align-items: center; gap: 48px;
  padding: 24px 64px 24px 40px; min-height: 380px; border-radius: 15px;
  border: 1.5px solid transparent;
  background: linear-gradient(#120d26, #120d26) padding-box, linear-gradient(90deg, rgb(255 79 216 / .7), rgb(168 85 247 / .25), rgb(34 211 238 / .7)) border-box;
  box-shadow: 0 30px 80px rgb(124 58 237 / .4);
}
.promo__bg { position: absolute; inset: 0; z-index: -1; }
.promo__bg picture, .promo__bg img { width: 100%; height: 100%; object-fit: cover; opacity: .9; }
.promo__bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgb(10 7 24 / .1), rgb(10 7 24 / .55) 55%, rgb(10 7 24 / .85)); }
.promo__text { display: grid; gap: 18px; justify-items: start; }
.promo__text h2 { font-size: clamp(1.625rem, 1.2rem + 1.4vw, 2.125rem); letter-spacing: -0.005em; line-height: 1.2; }
.promo__text p { color: var(--text-secondary); line-height: 1.6; max-width: 46ch; }
.promo__checks { display: flex; flex-wrap: wrap; gap: 20px; margin: 0; padding: 0; list-style: none; font-weight: 600; font-size: .875rem; }
.promo__checks li { display: inline-flex; align-items: center; gap: 8px; }
.promo__check { display: grid; place-items: center; width: 20px; height: 20px; border-radius: 50%; color: #fff; background: linear-gradient(135deg, var(--cyan), var(--violet)); }
.promo .btn--light { box-shadow: 0 0 30px rgb(255 255 255 / .25); }
@media (max-width: 1024px) {
  .promo { grid-template-columns: 1fr; padding: 16px 20px 28px; gap: 8px; min-height: 0; border-radius: 15px; }
  .promo__media { justify-self: center; max-width: 420px; }
}

/* ---------------- STEPS ---------------- */
.steps { background: radial-gradient(50% 50% at 50% 50%, rgb(79 70 229 / .22), transparent); }
.timeline { position: relative; display: flex; justify-content: space-between; width: min(100%, 872px); margin: 0 auto 32px; padding: 0; list-style: none; }
.timeline::before { content: ""; position: absolute; left: 28px; right: 28px; top: 27px; height: 2px;
  background: linear-gradient(90deg, var(--violet), var(--indigo), var(--pink)); box-shadow: 0 0 10px rgb(168 85 247 / .8); }
.timeline li { position: relative; display: grid; place-items: center; width: 56px; height: 56px; border-radius: 50%; font-weight: 800; font-size: 1.125rem;
  background: linear-gradient(var(--bg-base), var(--bg-base)) padding-box, linear-gradient(90deg, var(--violet), var(--indigo)) border-box; border: 2px solid transparent;
  box-shadow: 0 0 24px rgb(168 85 247 / .7); }
.timeline li.is-last { background: linear-gradient(var(--bg-base), var(--bg-base)) padding-box, var(--grad-cta) border-box; box-shadow: 0 0 24px rgb(255 79 216 / .7); }
.steps__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin: 0; padding: 0; list-style: none; }
.step { display: grid; align-content: start; gap: 24px; padding: 24px; border-radius: 15px; }
.step__text { display: grid; gap: 8px; padding-inline: 6px; }
.step__num { font-size: .75rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--violet-soft); }
.step h3 { font-size: 1.5rem; }
@media (max-width: 1024px) {
  .timeline { display: none; }
  .steps__grid { grid-template-columns: 1fr; max-width: 420px; margin-inline: auto; }
  .step { padding: 16px 16px 22px; border-radius: 15px; gap: 16px; }
  .step h3 { font-size: 1.25rem; }
}

/* Màn hình app thu nhỏ */
.mock { position: relative; display: block; height: 250px; border-radius: 14px; overflow: hidden;
  background: rgb(7 5 15 / .75); border: 1px solid rgb(255 255 255 / .08); font-size: 12px; }
.mock__photo { position: absolute; inset: 0; opacity: .5; }
.mock__photo img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.5); object-position: 50% 20%; }
.mock-toast { position: absolute; left: 50%; top: 24px; translate: -50% 0; display: inline-flex; align-items: center; gap: 8px; white-space: nowrap;
  padding: 8px 12px; border-radius: 15px; background: rgb(10 7 24 / .85); border: 1px solid rgb(34 211 238 / .5); box-shadow: 0 0 16px rgb(34 211 238 / .4); font-weight: 600; z-index: 2; }
.mock-toast .icon { color: var(--cyan-soft); }
.share-sheet { position: absolute; left: 0; right: 0; bottom: 0; height: 150px; padding: 22px 18px 0; border-radius: 14px 14px 0 0;
  background: rgb(20 12 44 / .96); border-top: 1px solid rgb(255 255 255 / .1); }
.share-sheet__handle { position: absolute; left: 50%; top: 8px; translate: -50% 0; width: 36px; height: 4px; border-radius: 2px; background: rgb(255 255 255 / .25); }
.share-sheet__title { display: block; font-weight: 600; font-size: 13px; }
.share-sheet__row { display: flex; justify-content: space-between; margin-top: 14px; }
.share-opt { display: grid; justify-items: center; gap: 6px; width: 60px; text-align: center; font-size: 10px; line-height: 1.2; color: var(--text-secondary); }
.share-opt__ic { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 50%; color: #fff; }
.share-opt.is-active { color: var(--text-primary); font-weight: 700; }
.share-opt.is-active .share-opt__ic { background: var(--grad-brand); border: 2px solid #fff; box-shadow: 0 0 18px rgb(255 79 216 / .8); }
.mock-cursor { position: absolute; width: 22px; height: 22px; background: #fff;
  clip-path: polygon(0 0, 0 78%, 24% 60%, 42% 100%, 58% 92%, 40% 54%, 72% 54%); filter: drop-shadow(0 2px 4px rgb(0 0 0 / .6)); animation: st-tap 4s var(--ease-out) infinite; }
.mock-cursor--1 { left: 58px; top: 82px; }
.mock-cursor--2 { right: 4px; top: 22px; animation-delay: 1.4s; }
@keyframes st-tap { 0%, 20% { transform: translate(18px, 18px); opacity: 0; } 35% { transform: none; opacity: 1; } 42% { transform: scale(.82); } 50%, 85% { transform: none; opacity: 1; } 100% { opacity: 0; } }

.mock--paste { padding: 20px; display: grid; align-content: start; gap: 16px; }
.mock__brand { font-weight: 800; font-size: 16px; }
.mock-input { position: relative; display: flex; align-items: center; gap: 8px; padding: 6px 6px 6px 12px; border-radius: 15px;
  background: linear-gradient(rgb(255 255 255 / .06), rgb(255 255 255 / .06)) padding-box, linear-gradient(90deg, var(--pink), var(--cyan)) border-box; border: 1.5px solid transparent;
  box-shadow: 0 0 20px rgb(168 85 247 / .5); color: var(--violet-soft); }
.mock-input__text { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--text-primary); font-weight: 500; font-size: 11px; }
.mock-input__caret { width: 1.5px; height: 14px; background: var(--pink); animation: st-blink 1s steps(1) infinite; }
@keyframes st-blink { 50% { opacity: 0; } }
.mock-input__btn { display: inline-flex; align-items: center; gap: 4px; padding: 6px 10px; border-radius: 15px; color: #fff; font-weight: 700; font-size: 11px;
  background: var(--grad-cta); box-shadow: 0 0 12px rgb(255 79 216 / .7); }
.mock-detect { display: flex; align-items: center; gap: 12px; padding: 10px; border-radius: 12px; background: rgb(255 255 255 / .05); border: 1px solid rgb(255 255 255 / .1); }
.mock-detect__thumb { width: 52px; height: 64px; border-radius: 10px; overflow: hidden; flex: none; }
.mock-detect__thumb img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.6); object-position: 50% 25%; }
.mock-detect > span:last-child { display: grid; gap: 3px; }
.mock-detect__ok { display: inline-flex; align-items: center; gap: 5px; color: var(--cyan-soft); font-weight: 700; font-size: 11px; }
.mock-detect__title { font-weight: 600; }
.mock-detect__meta { color: var(--text-tertiary); font-size: 10px; }
.mock-skeleton { display: block; width: 180px; height: 8px; border-radius: 4px; background: rgb(255 255 255 / .06); }

.mock--formats { padding: 18px 20px; display: grid; align-content: start; gap: 8px; }
.mock-format { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: 14px; background: rgb(255 255 255 / .04); border: 1px solid rgb(255 255 255 / .08); }
.mock-format__ic { display: grid; place-items: center; width: 32px; height: 32px; border-radius: 10px; background: rgb(255 255 255 / .08); flex: none; }
.mock-format__txt { flex: 1; display: grid; }
.mock-format__txt b { font-size: 12px; }
.mock-format__txt small { font-size: 10px; color: var(--text-secondary); }
.mock-format__size { font-weight: 600; font-size: 11px; color: var(--text-tertiary); }
.mock-format.is-active { border: 1.5px solid transparent;
  background: linear-gradient(90deg, rgb(255 79 216 / .22), rgb(168 85 247 / .12)) padding-box, linear-gradient(#170c2d, #170c2d) padding-box, var(--grad-cta) border-box; }
.mock-format.is-active .mock-format__ic { background: linear-gradient(135deg, var(--pink), var(--violet)); }
.mock-format.is-active .mock-format__size { color: #fff; }
.mock-progress { display: grid; gap: 6px; margin-top: 6px; }
.mock-progress__row { display: flex; justify-content: space-between; font-weight: 600; font-size: 11px; }
.mock-progress__row span { display: inline-flex; align-items: center; gap: 6px; color: var(--text-primary); }
.mock-progress__row b { color: #FF8AE6; }
.mock-progress__track { height: 6px; border-radius: 3px; background: rgb(255 255 255 / .1); overflow: hidden; }
.mock-progress__track i { display: block; width: 78%; height: 100%; border-radius: 3px; background: var(--grad-cta); box-shadow: 0 0 8px var(--pink); }
@media (max-width: 400px) { .mock { height: 236px; } .share-opt { width: 52px; } .share-opt__ic { width: 42px; height: 42px; } }

/* ---------------- DEVICES ---------------- */
.devices { overflow: hidden; isolation: isolate; }
.devices__bg { position: absolute; inset: 0; z-index: -1; }
.devices__bg picture, .devices__bg img { width: 100%; height: 100%; object-fit: cover; opacity: .55; }
.devices__bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, var(--bg-base), rgb(10 7 24 / .2) 25%, rgb(10 7 24 / .2) 75%, var(--bg-base)); }
.devices__inner { display: grid; grid-template-columns: 600px 1fr; gap: 64px; align-items: center; }
.devices__text .section-head { margin-bottom: 24px; }
.device-list { display: grid; gap: 12px; margin: 0; padding: 0; list-style: none; max-width: 520px; }
.device { display: flex; align-items: center; gap: 16px; padding: 14px 20px 14px 14px; border-radius: var(--r-md);
  background: var(--grad-card); border: 1px solid var(--glass-border-soft); }
.device__txt { flex: 1; display: grid; }
.device__txt span { color: var(--text-secondary); font-size: .875rem; }
.stats { display: flex; gap: 40px; margin: 28px 0 0; }
.stats .stat { display: flex; flex-direction: column-reverse; }
.stats dd { margin: 0; }
@media (max-width: 1024px) {
  .devices__inner { grid-template-columns: 1fr; gap: 16px; }
  .devices__media { max-width: 420px; justify-self: center; }
  .devices__text .section-head { justify-items: center; text-align: center; }
  .device-list { max-width: none; }
  .stats { justify-content: center; gap: 24px; }
}

/* ---------------- CATEGORIES ---------------- */
.categories { background: radial-gradient(60% 50% at 50% 55%, rgb(124 58 237 / .25), transparent 70%); overflow: hidden; }
.categories__head { display: flex; justify-content: space-between; align-items: flex-end; gap: 32px; margin-bottom: 40px; }
.categories__head .section-head { margin: 0; }
.categories__head h2 { font-size: clamp(2rem, 1.3rem + 2.6vw, 3.25rem); max-width: 14ch; }
.categories__aside { display: grid; justify-items: end; gap: 20px; text-align: right; max-width: 420px; }
.categories__aside p { color: var(--text-secondary); line-height: 1.6; }
.categories__filters { justify-content: center; margin-bottom: 48px; }
.categories__row { display: grid; grid-template-columns: repeat(4, 282px); justify-content: space-between; align-items: start; min-height: 520px; }
.categories__slot { position: relative; animation: st-bob 3s ease-in-out infinite; animation-delay: var(--d, 0s); --_bob: 12px; }
.categories__slot:nth-child(even) { margin-top: 56px; --_bob: -12px; }
.categories__slot::before { content: ""; position: absolute; inset: 60px 0 40px; z-index: -1;
  background: radial-gradient(closest-side, color-mix(in srgb, var(--_glow) 55%, transparent), transparent); }
.categories__row.is-paused .categories__slot { animation-play-state: paused; }
.strip { display: flex; justify-content: center; gap: 28px; width: fit-content; margin: 24px auto 0; padding: 16px 28px; list-style: none;
  border-radius: 15px; background: rgb(255 255 255 / .04); border: 1px solid rgb(255 255 255 / .1); color: var(--text-secondary); font-size: .875rem; font-weight: 500; }
.strip li { display: inline-flex; align-items: center; gap: 8px; }
.strip li + li { border-left: 1px solid rgb(255 255 255 / .15); padding-left: 28px; }
.strip b { font-size: 1.25rem; font-weight: 800; background: linear-gradient(90deg, var(--pink), var(--cyan)); -webkit-background-clip: text; background-clip: text; color: transparent; }
@media (max-width: 1240px) {
  .categories__row { display: flex; gap: 14px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none;
    margin-inline: calc(var(--gutter) * -1); padding: 8px var(--gutter) 24px; min-height: 0; }
  .categories__row::-webkit-scrollbar { display: none; }
  .categories__slot { scroll-snap-align: start; animation: none; }
  .categories__slot:nth-child(even) { margin-top: 0; }
}
@media (max-width: 860px) {
  .categories__head { flex-direction: column; align-items: center; text-align: center; margin-bottom: 24px; }
  .categories__head .section-head { justify-items: center; text-align: center; }
  .categories__aside { justify-items: center; text-align: center; }
  .categories__aside .btn { display: none; }
  .categories__filters { justify-content: flex-start; margin-bottom: 20px; }
  .categories__row .category-card { width: 224px; padding: 10px 10px 14px; border-radius: 15px; }
  .strip { flex-direction: column; gap: 8px; border-radius: 14px; padding: 14px 20px; }
  .strip li + li { border: 0; padding: 0; }
}

/* ---------------- TESTIMONIALS ---------------- */
.testimonials { background: radial-gradient(50% 50% at 50% 50%, rgb(192 38 211 / .18), transparent); overflow: hidden; }
.testimonials__grid { display: grid; grid-template-columns: 384px 1fr; gap: 24px; align-items: start; }
.testimonials__cols { columns: 2; column-gap: 24px; }
.testimonials__cols .review-card { break-inside: avoid; margin-bottom: 24px; }
.testimonials__cols .review-card:nth-child(3) { margin-top: 48px; } /* cột thứ 2 lệch xuống như Figma */
.rating { display: grid; gap: 18px; padding: 32px; border-radius: 15px;
  border: 1.5px solid transparent;
  background: linear-gradient(135deg, rgb(255 79 216 / .2), rgb(124 58 237 / .14) 60%, rgb(34 211 238 / .12)) padding-box, linear-gradient(#130a28, #130a28) padding-box,
              linear-gradient(90deg, rgb(255 79 216 / .8), rgb(34 211 238 / .5)) border-box;
  box-shadow: 0 30px 70px rgb(168 85 247 / .35); }
.rating__score { display: flex; align-items: baseline; gap: 8px; }
.rating__score b { font-size: 6rem; font-weight: 900; letter-spacing: -0.005em; line-height: 1; background: linear-gradient(180deg, #fff, #E9D5FF); -webkit-background-clip: text; background-clip: text; color: transparent; }
.rating__score span { font-size: 1.75rem; font-weight: 700; color: var(--text-secondary); }
.rating__stars { font-size: 1.5rem; }
.rating__count { color: var(--text-body); font-size: .9375rem; }
.rating__bars { display: grid; gap: 10px; margin: 0; padding: 0; list-style: none; font-size: .75rem; color: var(--text-secondary); font-weight: 600; }
.rating__bars li { display: grid; grid-template-columns: 24px 1fr 32px; align-items: center; gap: 10px; }
.rating__track { height: 6px; border-radius: 3px; background: rgb(255 255 255 / .1); overflow: hidden; }
.rating__track i { display: block; height: 100%; border-radius: 3px; background: var(--grad-cta); }
.rating__avatars { display: flex; align-items: center; }
.rating__avatars .avatar { width: 36px; height: 36px; margin-right: -10px; border: 3px solid #1A1036; }
.rating__avatars b { margin-left: 18px; padding: 8px 10px; border-radius: 15px; background: rgb(255 255 255 / .12); font-size: .75rem; }
@media (max-width: 1024px) {
  .testimonials__grid { grid-template-columns: 1fr; }
  .rating { grid-template-columns: auto 1fr; padding: 18px 20px; gap: 4px 14px; align-items: center; }
  .rating__score b { font-size: 3rem; } .rating__score span { display: none; }
  .rating__stars { font-size: 1rem; } .rating__count { grid-column: 2; font-size: .8125rem; }
  .rating__score { grid-row: span 2; }
  .rating__bars, .rating__avatars { display: none; }
  .testimonials__cols { columns: auto; display: flex; gap: 14px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none;
    margin-inline: calc(var(--gutter) * -1); padding: 0 var(--gutter) 12px; }
  .testimonials__cols::-webkit-scrollbar { display: none; }
  .testimonials__cols .review-card { flex: 0 0 300px; margin: 0 !important; scroll-snap-align: start; }
}

/* ---------------- FAQ ---------------- */
.faq__inner { display: grid; grid-template-columns: 440px 1fr; gap: 80px; align-items: start; }
.faq__intro { display: grid; gap: 4px; }
.faq__intro .section-head { margin-bottom: 20px; }
.support { display: flex; align-items: center; gap: 16px; padding: 18px 20px; border-radius: 14px;
  background: linear-gradient(135deg, rgb(168 85 247 / .18), rgb(34 211 238 / .08)); border: 1px solid rgb(255 255 255 / .14); }
.support picture { width: 64px; flex: none; }
.support__txt { flex: 1; display: grid; }
.support__txt span { color: var(--text-secondary); font-size: .875rem; }
/* Mobile: tiêu đề → danh sách câu hỏi → thẻ hỗ trợ */
@media (max-width: 1024px) {
  .faq__inner { grid-template-columns: 1fr; gap: 0; }
  .faq__intro { display: contents; }
  .faq__intro .section-head { order: 1; justify-items: center; text-align: center; margin-bottom: 24px; }
  .faq .faq-list { order: 2; }
  .support { order: 3; margin-top: 20px; }
}

/* ---------------- CTA ---------------- */
.section--cta { padding-top: 40px; }
.cta { position: relative; isolation: isolate; overflow: hidden; display: grid; justify-items: center; text-align: center;
  padding: 88px 24px; border-radius: 15px; border: 1.5px solid transparent;
  background: linear-gradient(#140c2c, #140c2c) padding-box, linear-gradient(90deg, rgb(255 79 216 / .8), rgb(34 211 238 / .8)) border-box;
  box-shadow: 0 30px 90px rgb(168 85 247 / .45); }
.cta__bg { position: absolute; inset: 0; z-index: -2; }
.cta__bg picture, .cta__bg img { width: 100%; height: 100%; object-fit: cover; opacity: .8; }
.cta::before { content: ""; position: absolute; inset: 0; z-index: -1;
  background: radial-gradient(40% 50% at 50% 0%, rgb(255 79 216 / .3), transparent), linear-gradient(135deg, rgb(255 79 216 / .2), rgb(124 58 237 / .08) 50%, rgb(34 211 238 / .2)); }
.cta__content { display: grid; justify-items: center; gap: 24px; width: min(100%, 820px); position: relative; z-index: 1; }
.cta h2 { font-size: clamp(1.875rem, 1.2rem + 2.6vw, 3.25rem); letter-spacing: -0.005em; text-wrap: balance; }
.cta .download-bar { max-width: 680px; }
.cta p { color: var(--text-body); font-size: var(--fs-lead); }
.cta .download-bar { width: 100%; }
.cta__robot { position: absolute; right: 30px; bottom: -40px; width: 300px; rotate: -8deg; filter: drop-shadow(0 0 40px rgb(168 85 247 / .6)); }
.cta__video { position: absolute; left: 20px; top: 40px; width: 240px; rotate: 10deg; }
@media (max-width: 1100px) { .cta__robot { width: 200px; right: -20px; } .cta__video { width: 170px; left: -20px; top: 16px; } }
@media (max-width: 760px) {
  .cta { padding: 32px 20px 0; border-radius: 15px; }
  .cta__video { display: none; }
  .cta__robot { position: relative; right: auto; bottom: auto; width: 170px; rotate: 0deg; margin-top: 12px; }
}

/* ===================== Hướng dẫn theo thiết bị ===================== */
.guides__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.guide { display: grid; align-content: start; gap: 18px; }
.guide__head { display: flex; align-items: center; gap: 14px; }
.guide__head h3 { font-size: 1.125rem; line-height: 1.3; }
.guide__steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; counter-reset: g; }
.guide__steps li { counter-increment: g; display: grid; grid-template-columns: 28px 1fr; gap: 12px; color: var(--text-body); font-size: .9375rem; line-height: 1.55; }
.guide__steps li::before {
  content: counter(g); display: grid; place-items: center; width: 28px; height: 28px; border-radius: 50%;
  font-size: .8125rem; font-weight: 800; color: #fff; background: linear-gradient(135deg, var(--pink), var(--violet));
}
@media (max-width: 1024px) { .guides__grid { grid-template-columns: 1fr; max-width: 640px; margin-inline: auto; } }

/* ===================== SnapTik là gì ===================== */
.about__inner { display: grid; grid-template-columns: 1.05fr 1fr; gap: 64px; align-items: center; }
.about__text { display: grid; gap: 18px; justify-items: start; }
.about__text h2 { font-size: var(--fs-h2); letter-spacing: -0.005em; line-height: 1.12; }
.about__text p { color: var(--text-body); font-size: var(--fs-lead); line-height: 1.7; margin: 0; }
.about__text .about__note { display: flex; gap: 12px; align-items: flex-start; font-size: var(--fs-sm); line-height: 1.6; color: var(--text-secondary);
  padding: 14px 16px; border-radius: 14px; border: 1px solid rgb(255 255 255 / .08); background: rgb(255 255 255 / .03); }
.about__note svg { flex: none; margin-top: 2px; color: var(--cyan); }
.about__grid { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.about__item { display: grid; align-content: start; gap: 12px; }
.about__item h3 { font-size: 1.0625rem; line-height: 1.3; }
.about__item p { color: var(--text-secondary); font-size: var(--fs-sm); line-height: 1.6; margin: 0; }
@media (max-width: 1024px) { .about__inner { grid-template-columns: 1fr; gap: 36px; } }
@media (max-width: 480px) { .about__grid { grid-template-columns: 1fr; } }

.speed__num--word { white-space: nowrap; font-size: clamp(2.75rem, 1.6rem + 2.6vw, 4.25rem); }

/* ===================== Mẹo & lỗi thường gặp ===================== */
.tips__grid { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.tip { display: flex; gap: 14px; align-items: flex-start; padding: 18px; border-radius: var(--r-md);
  background: rgb(255 255 255 / .03); border: 1px solid var(--glass-border-soft); }
.tip h3 { font-size: 1.0625rem; line-height: 1.3; margin-bottom: 6px; }
.tip p { margin: 0; color: var(--text-secondary); font-size: .9375rem; line-height: 1.6; }
@media (max-width: 1024px) { .tips__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { .tips__grid { grid-template-columns: 1fr; } .tip { padding: 16px; } }