:root {
  --color-primary: #16865b;
  --color-primary-dark: #0f6846;
  --color-primary-soft: #e8f5ef;
  --color-accent: #ef8b2c;
  --color-success: #20a875;
  --color-text: #17352a;
  --color-text-muted: #637186;
  --color-border: #dce8e2;
  --color-background: #f8faf9;
  --color-surface: #ffffff;
  --color-danger: #d94747;
  --shadow-card: 0 28px 70px rgba(31, 83, 62, 0.12);
  --radius-card: 24px;
  --font-main: "Manrope", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--color-text);
  background: var(--color-background);
  font-family: var(--font-main);
  -webkit-font-smoothing: antialiased;
  animation: page-enter 260ms ease-out;
  transition: opacity 180ms ease, transform 180ms ease;
}

body.page-leaving {
  pointer-events: none;
}

.page-loader { position: fixed; z-index: 9999; inset: 0; display: flex; visibility: hidden; align-items: center; justify-content: center; flex-direction: column; gap: 14px; color: var(--color-primary); background: rgba(255,255,255,.92); opacity: 0; backdrop-filter: blur(6px); transition: opacity 180ms ease, visibility 180ms ease; }
.page-loader--visible { visibility: visible; opacity: 1; }
.page-loader__spinner { width: 42px; height: 42px; border: 4px solid var(--color-primary-soft); border-top-color: var(--color-primary); border-radius: 50%; animation: page-loader-spin .75s linear infinite; }
.page-loader__text { color: #4f665c; font-size: 13px; font-weight: 700; }

button,
input {
  font: inherit;
}

a {
  color: inherit;
}

.app-shell {
  display: flex;
  min-height: 100vh;
  flex-direction: column;
  overflow: hidden;
}

.site-header {
  position: relative;
  z-index: 10;
  border-bottom: 1px solid rgba(220, 229, 239, 0.85);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(18px);
}

.site-header__container,
.site-footer__container {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
}

.site-header__container {
  display: flex;
  min-height: 80px;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
}

.brand__mark {
  display: grid;
  width: 40px;
  height: 40px;
  color: var(--color-primary);
  place-items: center;
}

.brand__mark svg {
  width: 100%;
  height: 100%;
}

.brand__name {
  color: #173d2f;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.7px;
}

.brand__name-accent {
  color: var(--color-accent);
}

.site-header__support {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 13px;
}

.site-header__support-label {
  color: var(--color-text-muted);
  font-weight: 500;
}

.site-header__support-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--color-text);
  font-weight: 700;
  text-decoration: none;
  transition: color 180ms ease;
}

.site-header__support-link:hover {
  color: var(--color-primary);
}

.site-header__support-link svg {
  width: 17px;
  fill: currentColor;
}

.activation {
  position: relative;
  display: flex;
  flex: 1;
  align-items: center;
  padding: 72px 24px 76px;
  background:
    radial-gradient(circle at 14% 22%, rgba(22, 134, 91, 0.07), transparent 27%),
    radial-gradient(circle at 88% 82%, rgba(239, 139, 44, 0.045), transparent 25%),
    var(--color-background);
}

.activation__decoration {
  position: absolute;
  border: 1px solid rgba(22, 134, 91, 0.07);
  border-radius: 50%;
  pointer-events: none;
}

.activation__decoration--top {
  top: -210px;
  left: -180px;
  width: 480px;
  height: 480px;
  box-shadow: 0 0 0 55px rgba(22, 134, 91, 0.025), 0 0 0 110px rgba(22, 134, 91, 0.018);
}

.activation__decoration--bottom {
  right: -160px;
  bottom: -270px;
  width: 510px;
  height: 510px;
  border-color: rgba(239, 139, 44, 0.08);
  box-shadow: 0 0 0 55px rgba(239, 139, 44, 0.018);
}

.activation__container {
  position: relative;
  z-index: 1;
  display: grid;
  width: min(1050px, 100%);
  margin: 0 auto;
  align-items: center;
  grid-template-columns: minmax(0, 1fr) 450px;
  gap: clamp(64px, 9vw, 120px);
}

.activation__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 23px;
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1.4px;
  text-transform: uppercase;
}

.activation__eyebrow-dot {
  width: 8px;
  height: 8px;
  border: 2px solid #a9d0f9;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 0 4px var(--color-primary-soft);
}

.activation__title {
  margin: 0;
  color: var(--color-text);
  font-size: clamp(36px, 4vw, 51px);
  font-weight: 800;
  letter-spacing: -2.1px;
  line-height: 1.18;
}

.activation__title-accent {
  color: var(--color-primary);
}

.activation__description {
  max-width: 535px;
  margin: 25px 0 0;
  color: var(--color-text-muted);
  font-size: 15px;
  line-height: 1.8;
}

.activation__benefits {
  display: grid;
  margin: 32px 0 0;
  padding: 0;
  gap: 15px;
  list-style: none;
}

.activation__benefit {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #405168;
  font-size: 13px;
  font-weight: 600;
}

.activation__benefit-icon {
  display: grid;
  width: 23px;
  height: 23px;
  flex: 0 0 auto;
  border-radius: 50%;
  color: var(--color-success);
  background: #e8f7f1;
  place-items: center;
}

.activation__benefit-icon svg {
  width: 13px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2.5;
}

.activation-card,
.activation-success {
  position: relative;
  border: 1px solid rgba(220, 229, 239, 0.8);
  border-radius: var(--radius-card);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}

.activation-card {
  padding: 43px 42px 35px;
}

.activation-card__status {
  position: absolute;
  top: -25px;
  right: 30px;
  display: grid;
  width: 55px;
  height: 55px;
  border: 6px solid var(--color-background);
  border-radius: 17px;
  background: var(--color-accent);
  box-shadow: 0 9px 20px rgba(239, 139, 44, 0.23);
  place-items: center;
  transform: rotate(4deg);
}

.activation-card__status-ring {
  display: grid;
  color: #fff;
  place-items: center;
}

.activation-card__status svg {
  width: 26px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.activation-card__step {
  margin: 0 0 8px;
  color: var(--color-primary);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 1.2px;
  text-transform: uppercase;
}

.activation-card__title {
  margin: 0;
  font-size: 24px;
  letter-spacing: -0.7px;
}

.activation-card__description {
  margin: 10px 0 0;
  color: var(--color-text-muted);
  font-size: 12px;
  line-height: 1.7;
}

.activation-form {
  margin-top: 28px;
}

.activation-form__label {
  display: block;
  margin-bottom: 9px;
  color: #31445c;
  font-size: 11px;
  font-weight: 700;
}

.activation-form__input-wrap {
  position: relative;
  display: flex;
  height: 55px;
  align-items: center;
  border: 1.5px solid var(--color-border);
  border-radius: 11px;
  background: #fbfcfe;
  transition: border-color 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.activation-form__input-wrap:focus-within {
  border-color: var(--color-primary);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(22, 134, 91, 0.1);
}

.activation-form__input-wrap--error {
  border-color: var(--color-danger);
  box-shadow: 0 0 0 4px rgba(217, 71, 71, 0.08);
}

.activation-form__input-wrap--valid {
  border-color: var(--color-success);
}

.activation-form__input-icon {
  width: 20px;
  margin-left: 16px;
  flex: 0 0 auto;
  fill: none;
  stroke: #8795a8;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.7;
}

.activation-form__input {
  width: 100%;
  height: 100%;
  min-width: 0;
  padding: 0 12px;
  border: 0;
  outline: 0;
  color: #263b54;
  background: transparent;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.6px;
  text-transform: uppercase;
}

.activation-form__input::placeholder {
  color: #a4afbd;
  font-weight: 600;
  opacity: 1;
}

.activation-form__valid-icon {
  display: none;
  width: 22px;
  height: 22px;
  margin-right: 14px;
  flex: 0 0 22px;
  border-radius: 50%;
  color: #fff;
  background: var(--color-success);
  place-items: center;
}

.activation-form__input-wrap--valid .activation-form__valid-icon {
  display: grid;
}

.activation-form__valid-icon svg {
  width: 13px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2.7;
}

.activation-form__meta {
  display: flex;
  margin-top: 8px;
  align-items: center;
  justify-content: space-between;
  color: #95a0af;
  font-size: 9px;
}

.activation-form__error {
  min-height: 17px;
  margin: 4px 0 0;
  color: var(--color-danger);
  font-size: 10px;
  font-weight: 600;
}

.activation-form__submit,
.activation-success__button {
  display: flex;
  width: 100%;
  height: 53px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 0;
  border-radius: 11px;
  color: #fff;
  background: var(--color-primary);
  box-shadow: 0 10px 22px rgba(22, 134, 91, 0.19);
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
  transition: background 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.activation-form__submit:hover,
.activation-success__button:hover {
  background: var(--color-primary-dark);
  box-shadow: 0 12px 26px rgba(22, 134, 91, 0.25);
  transform: translateY(-1px);
}

.activation-form__submit:focus-visible,
.activation-success__button:focus-visible,
.activation-card__help-link:focus-visible,
.site-header__support-link:focus-visible,
.brand:focus-visible {
  outline: 3px solid rgba(22, 134, 91, 0.3);
  outline-offset: 3px;
}

.activation-form__submit:disabled {
  cursor: wait;
  opacity: 0.75;
  transform: none;
}

.activation-form__submit-arrow,
.activation-success__button svg {
  width: 17px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.activation-form__spinner {
  display: none;
  width: 17px;
  height: 17px;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: activation-spin 700ms linear infinite;
}

.activation-form__submit--loading .activation-form__spinner {
  display: block;
}

.activation-form__submit--loading .activation-form__submit-arrow {
  display: none;
}

.activation-card__divider {
  display: flex;
  margin: 21px 0 16px;
  align-items: center;
  gap: 12px;
  color: #a6b0bd;
  font-size: 9px;
  text-transform: uppercase;
}

.activation-card__divider::before,
.activation-card__divider::after {
  height: 1px;
  flex: 1;
  background: #e8edf3;
  content: "";
}

.activation-card__help-link {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  color: var(--color-primary);
  font-size: 10px;
  font-weight: 700;
  text-decoration: none;
}

.activation-card__help-link:hover {
  text-decoration: underline;
}

.activation-card__help-link svg {
  width: 15px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.activation-success {
  padding: 55px 42px 45px;
  text-align: center;
}

.activation-success[hidden] {
  display: none;
}

.activation-success__icon {
  display: grid;
  width: 72px;
  height: 72px;
  margin: 0 auto 24px;
  border-radius: 50%;
  color: #fff;
  background: var(--color-success);
  box-shadow: 0 0 0 10px #e7f8f4;
  place-items: center;
}

.activation-success__icon svg {
  width: 42px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 3;
}

.activation-success__eyebrow {
  margin: 0 0 8px;
  color: var(--color-success);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 1.1px;
  text-transform: uppercase;
}

.activation-success__title {
  margin: 0;
  font-size: 26px;
}

.activation-success__description {
  margin: 14px 0 28px;
  color: var(--color-text-muted);
  font-size: 12px;
  line-height: 1.7;
}

.site-footer {
  position: relative;
  z-index: 2;
  border-top: 1px solid var(--color-border);
  background: #fff;
}

.site-footer__container {
  display: grid;
  min-height: 65px;
  align-items: center;
  color: #8a96a6;
  font-size: 9px;
  grid-template-columns: 1fr auto 1fr;
  gap: 24px;
}

.site-footer__nav {
  display: flex;
  gap: 25px;
}

.site-footer__link {
  text-decoration: none;
}

.site-footer__link:hover {
  color: var(--color-primary);
}

.site-footer__security {
  display: flex;
  align-items: center;
  justify-self: end;
  gap: 6px;
}

.site-footer__security svg {
  width: 14px;
  fill: none;
  stroke: var(--color-success);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

@keyframes activation-spin {
  to { transform: rotate(360deg); }
}

@keyframes page-enter {
  from { opacity: 0; transform: translateY(7px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes page-loader-spin { to { transform: rotate(360deg); } }

/* Cỡ chữ tối thiểu cho các nội dung hỗ trợ và thao tác. */
.activation-card__description { font-size: 14px; }
.activation-form__label { font-size: 13px; }
.activation-form__meta, .activation-form__error { font-size: 11px; }
.activation-form__submit { font-size: 14px; }
.activation-card__help-link { font-size: 12px; }
.site-footer__container { font-size: 11px; }

@media (max-width: 900px) {
  .activation {
    padding-top: 58px;
  }

  .activation__container {
    max-width: 570px;
    grid-template-columns: 1fr;
    gap: 55px;
  }

  .activation__intro {
    text-align: center;
  }

  .activation__description {
    margin-right: auto;
    margin-left: auto;
  }

  .activation__benefits {
    width: max-content;
    max-width: 100%;
    margin-right: auto;
    margin-left: auto;
    text-align: left;
  }

  .activation-card,
  .activation-success {
    width: min(450px, 100%);
    margin: 0 auto;
  }
}

@media (max-width: 640px) {
  .site-header__container,
  .site-footer__container {
    width: min(100% - 32px, 1180px);
  }

  .site-header__container {
    min-height: 70px;
  }

  .site-header__support-label {
    display: none;
  }

  .site-header__support-link {
    font-size: 11px;
  }

  .activation {
    padding: 45px 16px 55px;
  }

  .activation__title {
    font-size: 34px;
    letter-spacing: -1.5px;
  }

  .activation__description {
    font-size: 14px;
  }

  .activation-card,
  .activation-success {
    padding-right: 24px;
    padding-left: 24px;
  }

  .site-footer__container {
    padding: 22px 0;
    justify-items: center;
    grid-template-columns: 1fr;
    gap: 12px;
    text-align: center;
  }

  .site-footer__copyright,
  .site-footer__security {
    margin: 0;
  }

  .site-footer__security {
    justify-self: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}