/* =========================================================
   TIXGO – Landing page
   Layout dựng theo file PSB: artboard WEB 1920px / MOBILE
   Asset: phần khung–nền–nút–icon cut từ PSB,
          logo/hero/thẻ danh mục/logo đối tác render mới cùng kích thước.
   ========================================================= */

:root {
  --bg: #06030f;
  --violet: #7c3aed;
  --violet-l: #c084fc;
  --gold: #fbbf24;
  --txt: #e9e4f5;
  --muted: #a99fc4;

  --wrap: 1524px; /* 194 → 1718 trong PSB */
  --stage: 1680px; /* 105 → 1785 trong PSB */

  --display: 'Arial Black', 'Arial Bold', Arial, Helvetica, sans-serif;
  --body: system-ui, -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  -webkit-text-size-adjust: 100%;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--txt);
  font-family: var(--body);
  line-height: 1.5;
  overflow-x: hidden;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  text-decoration: none;
  color: inherit;
}
ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

/* =========================================================
   LAYOUT CHUNG
   ========================================================= */

.page {
  padding-bottom: 40px;
}

.is-hidden {
  display: none !important;
}

/* ============ HERO ============ */
.hero {
  position: relative;
  padding-bottom: 20px;
}
.hero__bg {
  position: absolute;
  inset: 0 0 auto;
  height: 1009px;
  background: url('../assets/img/bg-city.jpg') center top/cover no-repeat;
  z-index: 0;
}
.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 3, 15, 0.15) 0%, rgba(6, 3, 15, 0.05) 45%, var(--bg) 100%);
}
.hero__inner {
  position: relative;
  z-index: 1;
  max-width: var(--stage);
  margin: 0 auto;
  padding: 22px 20px 0;
  display: grid;
  gap: 0 24px;
  grid-template-columns: 349px minmax(0, 1fr) 349px;
  grid-template-areas:
    'logo logo logo'
    'head head head'
    'sub  sub  sub'
    'left stage right'
    'cta  cta  cta'
    'feat feat feat';
  align-items: start;
}

/* logo */
.logo {
  grid-area: logo;
  justify-self: center;
  width: 284px;
}
.logo img {
  width: 100%;
}

/* headline */
.headline {
  grid-area: head;
  margin: 23px 0 0;
  font-family: var(--display);
  font-size: 44px;
  line-height: 1.12;
  letter-spacing: 0.5px;
  text-align: center;
  text-transform: uppercase;
  color: #fff;
  text-shadow:
    0 0 18px rgba(168, 85, 247, 0.75),
    0 2px 6px rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0 22px;
}
.headline__accent {
  color: var(--gold);
  text-shadow: 0 0 18px rgba(251, 191, 36, 0.7);
}
.dot {
  width: 17px;
  height: 17px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #fff, var(--gold));
  box-shadow: 0 0 14px rgba(251, 191, 36, 0.9);
  flex: none;
}

/* subline */
.subline {
  grid-area: sub;
  margin: 32px 0 0;
  font-size: 26px;
  text-align: center;
  color: #efe9ff;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}
.orn {
  width: 85px;
  height: 2px;
  flex: none;
  position: relative;
  background: linear-gradient(90deg, transparent, var(--violet-l));
}
.orn--r {
  background: linear-gradient(90deg, var(--violet-l), transparent);
}
.orn::after {
  content: '';
  position: absolute;
  top: -3px;
  width: 8px;
  height: 8px;
  background: var(--violet-l);
  transform: rotate(45deg);
}
.orn--l::after {
  right: 0;
}
.orn--r::after {
  left: 0;
}

/* ============ PANEL (khung cut từ PSB) ============ */
.panel {
  background: url('../assets/img/card-frame.png') center/100% 100% no-repeat;
  background-color: rgba(11, 5, 26, 0.55);
  border-radius: 26px;
  padding: 24px 22px;
  backdrop-filter: blur(2px);
}
.panel--left {
  grid-area: left;
  margin-top: 26px;
  min-height: 387px;
}
.panel--right {
  grid-area: right;
  min-height: 446px;
}

.panel__title_img {
  width: auto;
  height: 100%;
  margin-left: 50%;
  transform: translateX(-50%);
}

.panel__title {
  margin: 0;
  font-family: var(--display);
  font-size: 20px;
  letter-spacing: 1px;
  text-align: center;
  color: #fff;
}
.panel__rule {
  display: block;
  height: 2px;
  margin: 16px 0 20px;
  background: url('../assets/img/divider.png') center/100% 2px no-repeat;
}
.panel__head {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding-bottom: 16px;
  margin-bottom: 12px;
  background: url('../assets/img/divider.png') bottom center/100% 2px no-repeat;
}
.panel__logo {
  width: 180px;
}
.panel__head img:last-child {
  width: 28px;
  flex: none;
}

.steps {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.step {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-bottom: 16px;
  background: url('../assets/img/divider.png') bottom center/100% 2px no-repeat;
}
.steps .step:last-child {
  background: none;
  padding-bottom: 0;
}
.badge {
  flex: none;
  width: 48px;
  height: 55px;
  background: url('../assets/img/badge-num.png') center/contain no-repeat;
  display: grid;
  place-items: center;
  font-family: var(--display);
  font-size: 20px;
  color: #fff;
}
.step__ic {
  flex: none;
  width: 46px;
  height: auto;
}
.step__txt {
  display: block;
}
.step__txt b {
  display: block;
  font-size: 17px;
  color: #fff;
  font-weight: 700;
}
.step__txt em {
  display: block;
  font-style: normal;
  font-size: 14px;
  color: var(--muted);
  margin-top: 3px;
}
.step__txt .hl {
  color: var(--gold);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.4px;
}
.step__qr {
  margin-left: auto;
  width: 32px;
  flex: none;
}
.panel__note {
  margin: 18px 0 0;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted);
  text-align: center;
}
.panel__note b {
  color: var(--violet-l);
}

/* ============ HERO IMAGE ============ */
.stage {
  grid-area: stage;
  display: flex;
  justify-content: center;
  align-items: flex-start;
}
.stage__img {
  width: 100%;
  max-width: 842px;
}

/* ============ CTA ============ */
.cta {
  grid-area: cta;
  margin-top: 36px;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 41px;
}
.btn {
  width: 369px;
  max-width: 100%;
  height: 65px;
  display: grid;
  place-items: center;
  background: center/100% 100% no-repeat;
  font-family: var(--display);
  font-size: 21px;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: #fff;
  padding-left: 44px; /* chừa chỗ cho icon đã có sẵn trên nút */
  transition:
    transform 0.18s ease,
    filter 0.18s ease;
}
.btn:hover,
.btn:focus-visible {
  transform: translateY(-3px);
  filter: brightness(1.12);
}
.btn--purple {
  background-image: url('../assets/img/btnPlayWeb.png');
}
.btn--blue {
  background-image: url('../assets/img/btn-ios.png');
}
.btn--gold {
  background-image: url('../assets/img/btn-android.png');
  color: #ffe9a8;
  text-shadow:
    0 0 12px rgba(251, 191, 36, 0.7),
    0 2px 4px rgba(0, 0, 0, 0.75);
}

/* ============ 4 THẺ DANH MỤC ============ */
.features {
  grid-area: feat;
  margin-top: 41px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 11px;
  max-width: var(--wrap);
  width: 100%;
  justify-self: center;
}
.feat {
  position: relative;
  container-type: inline-size;
}
.feat img {
  width: 100%;
}
.feat__txt {
  position: absolute;
  left: 21%;
  top: 50%;
  transform: translateY(-50%);
  width: 54%;
}
/* cỡ chữ theo bề rộng thẻ => giữ đúng tỉ lệ như trong PSB ở mọi màn hình */
.feat__txt h3 {
  margin: 0;
  font-family: var(--display);
  font-size: 4.1cqw;
  letter-spacing: 0.02em;
  color: #fff;
  line-height: 1.2;
}
.feat__txt p {
  margin: 0.5cqw 0 0;
  font-size: 3.2cqw;
  line-height: 1.4;
  color: var(--muted);
}

/* ============ NỘI DUNG ============ */
.content {
  padding: 10px 20px 0;
}
.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
}
.content__title {
  margin: 0;
  font-family: var(--display);
  font-size: 27px;
  line-height: 1.35;
  text-align: center;
  color: var(--gold);
  letter-spacing: 0.5px;
  text-shadow: 0 0 16px rgba(251, 191, 36, 0.35);
}
.content__desc {
  margin: 24px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
  text-align: justify;
}

.brands {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 24px;
  align-items: center;
}
.brands img {
  width: 100%;
  max-width: 220px;
  margin: 0 auto;
  opacity: 0.85;
  transition:
    opacity 0.2s ease,
    transform 0.2s ease;
}
.brands img:hover {
  opacity: 1;
  transform: translateY(-3px);
}

/* ============ ĐĂNG KÝ ============ */
.hero-register {
  grid-area: stage;
  margin-top: 26px;
}
.register__title {
  margin: 0;
  font-family: var(--display);
  font-size: 32px;
  text-align: center;
  color: #fff;
  letter-spacing: 0.5px;
  text-shadow:
    0 0 18px rgba(168, 85, 247, 0.75),
    0 2px 6px rgba(0, 0, 0, 0.6);
}
.register__sub {
  margin: 14px 0 0;
  font-size: 15px;
  text-align: center;
  color: var(--muted);
}
.register__card {
  max-width: 560px;
  margin: 36px auto 0;
  background: url('../assets/img/card-frame.png') center/100% 100% no-repeat;
  background-color: rgba(11, 5, 26, 0.55);
  border-radius: 26px;
  padding: 40px 44px;
  backdrop-filter: blur(2px);
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.form-group label {
  font-size: 14px;
  font-weight: 600;
  color: #fff;
}
.form-group input {
  height: 50px;
  padding: 0 18px;
  border-radius: 12px;
  border: 1px solid rgba(192, 132, 252, 0.35);
  background: rgba(6, 3, 15, 0.6);
  color: var(--txt);
  font-size: 15px;
  font-family: var(--body);
  outline: none;
  transition:
    border-color 0.18s ease,
    box-shadow 0.18s ease;
}
.form-group input::placeholder {
  color: #6f6690;
}
.form-group input:focus {
  border-color: var(--violet-l);
  box-shadow: 0 0 0 3px rgba(192, 132, 252, 0.2);
}
.form-group input[readonly] {
  color: var(--muted);
  border-color: rgba(192, 132, 252, 0.18);
  cursor: not-allowed;
}
.form-hint {
  font-size: 12.5px;
  color: var(--violet-l);
}
.captcha-row {
  display: flex;
  gap: 12px;
}
.captcha-row input {
  flex: 1;
  min-width: 0;
}
.captcha-image {
  flex: none;
  width: 120px;
  height: 50px;
  border-radius: 10px;
  border: 1px solid rgba(192, 132, 252, 0.35);
  background: rgba(6, 3, 15, 0.6);
  cursor: pointer;
  object-fit: cover;
}
.form-error {
  margin: -6px 0 0;
  font-size: 13.5px;
  color: #ff6b81;
  text-align: center;
}
.form-success {
  margin: -6px 0 0;
  font-size: 13.5px;
  color: #4ade80;
  text-align: center;
}
.btn-submit {
  margin-top: 6px;
  height: 56px;
  border: none;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--violet-l), var(--violet));
  color: #fff;
  font-family: var(--display);
  font-size: 18px;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(124, 58, 237, 0.45);
  transition:
    transform 0.18s ease,
    filter 0.18s ease;
}
.btn-submit:hover,
.btn-submit:focus-visible {
  transform: translateY(-3px);
  filter: brightness(1.1);
}

@media (max-width: 900px) {
  .hero-register {
    margin-top: 22px;
  }
  .register__title {
    font-size: 24px;
  }
  .register__card {
    padding: 28px 22px;
    border-radius: 20px;
    gap: 16px;
  }
  .btn-submit {
    height: 50px;
    font-size: 16px;
  }
}

/* ============ TẢI APP ============ */
.downloads {
  padding: 80px 20px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 33px;
}

.foot {
  padding: 64px 20px 40px;
  text-align: center;
  color: #6f6690;
  font-size: 13px;
}

/* =========================================================
   MOBILE – theo artboard MOBILE của PSB
   (hero → CTA → 4 thẻ → 2 panel cạnh nhau → nội dung)
   ========================================================= */
@media (max-width: 1180px) {
  .hero__inner {
    grid-template-columns: 300px minmax(0, 1fr) 300px;
    gap: 0 16px;
  }
  .headline {
    font-size: 36px;
    gap: 0 16px;
  }
  .subline {
    font-size: 22px;
  }
  .cta {
    gap: 24px;
  }
  .btn {
    width: 320px;
    font-size: 18px;
    padding-left: 38px;
  }
  .content__title {
    font-size: 23px;
  }
  .brands {
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
  }
}

@media (max-width: 900px) {
  .hero {
    padding-bottom: 24px;
  }
  .hero__bg {
    height: 560px;
    background-image: url('../assets/img/bg-city-mobile.jpg');
  }

  .hero__inner {
    grid-template-columns: 1fr 1fr;
    gap: 0 12px;
    grid-template-areas:
      'logo  logo'
      'head  head'
      'sub   sub'
      'stage stage'
      'cta   cta'
      'feat  feat'
      'left  right';
  }

  .logo {
    width: 200px;
  }
  .headline {
    margin-top: 18px;
    font-size: 29px;
    gap: 0 14px;
    flex-direction: column;
  }
  .headline .dot {
    display: none;
  }
  .subline {
    margin-top: 18px;
    font-size: 17px;
    gap: 12px;
  }
  .orn {
    width: 56px;
  }

  .stage {
    margin-top: 6px;
  }

  .cta {
    margin-top: 22px;
    gap: 12px;
  }
  .cta .btn {
    width: calc(50% - 6px);
    min-width: 0;
    height: 52px;
    font-size: 15px;
    padding-left: 30px;
  }
  .cta .btn--purple {
    order: 3;
    width: min(320px, 100%);
  }

  .features {
    margin-top: 26px;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .panel--left,
  .panel--right {
    margin-top: 28px;
    min-height: 0;
  }
  .panel {
    padding: 18px 14px;
    border-radius: 20px;
  }
  .panel__logo {
    width: 130px;
  }
  .step {
    gap: 10px;
  }
  .badge {
    width: 38px;
    height: 44px;
    font-size: 16px;
  }
  .step__ic {
    width: 34px;
  }
  .step__txt b {
    font-size: 14px;
  }
  .step__txt em {
    font-size: 12px;
  }
  .step__qr {
    width: 24px;
  }

  .content {
    padding-top: 36px;
  }
  .content__title {
    font-size: 19px;
  }
  .content__desc {
    margin-top: 18px;
    font-size: 14px;
    line-height: 1.75;
  }
  .brands {
    margin-top: 34px;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .downloads {
    padding-top: 48px;
    gap: 16px;
  }
  .downloads .btn {
    width: min(320px, 100%);
    height: 56px;
    font-size: 16px;
    padding-left: 34px;
  }
}

@media (max-width: 520px) {
  .headline {
    font-size: 24px;
  }
  .subline {
    font-size: 15px;
  }
  .orn {
    width: 40px;
  }
  .cta .btn {
    height: 46px;
    font-size: 13px;
    padding-left: 26px;
  }
  .content__title {
    font-size: 17px;
  }
  .hero__inner {
    grid-template-areas:
      'logo  logo'
      'head  head'
      'sub   sub'
      'stage stage'
      'cta   cta'
      'feat  feat'
      'left  left'
      'right right';
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
  }
}