.tnstack-site-footer {
  --tnstack-footer-primary: var(--theme-palette-color-1, #2d6bff);
  --tnstack-footer-primary-rgb: 45, 107, 255;
  --tnstack-footer-bg: var(--tnstack-footer-page-bg, #070a11);
  --tnstack-footer-surface: rgba(255, 255, 255, 0.045);
  --tnstack-footer-border: rgba(255, 255, 255, 0.1);
  --tnstack-footer-text: #aeb9c9;
  --tnstack-footer-heading: #f7f9fc;
  position: relative;
  isolation: isolate;
  width: 100vw !important;
  max-width: 100vw !important;
  margin-inline: calc(50% - 50vw) !important;
  margin-block: 0 !important;
  overflow: hidden;
  color: var(--tnstack-footer-text);
  background: var(--tnstack-footer-bg);
  font-family: var(--theme-font-family, Manrope, sans-serif);
}

.tnstack-site-footer *,
.tnstack-site-footer *::before,
.tnstack-site-footer *::after {
  box-sizing: border-box;
}

.tnstack-site-footer__ambient {
  position: absolute;
  z-index: -1;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 12% 56%, rgba(var(--tnstack-footer-primary-rgb), 0.16), transparent 27%),
    radial-gradient(circle at 88% 18%, rgba(var(--tnstack-footer-primary-rgb), 0.13), transparent 25%),
    radial-gradient(circle at 62% 92%, rgba(91, 74, 255, 0.09), transparent 23%),
    linear-gradient(135deg, rgba(7, 10, 17, 0.98), rgba(10, 15, 28, 0.96) 52%, rgba(5, 8, 14, 0.99));
}

.tnstack-site-footer__ambient::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.2;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to bottom, #000, transparent 70%);
}

.tnstack-site-footer__container {
  width: min(100% - 48px, var(--theme-normal-container-max-width, 1290px));
  margin-inline: auto;
  padding: 80px 0 0;
}

.tnstack-site-footer__cta {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 48px;
  align-items: center;
  padding: clamp(30px, 4vw, 52px);
  overflow: hidden;
  border: 1px solid rgba(var(--tnstack-footer-primary-rgb), 0.34);
  border-radius: 28px;
  background:
    radial-gradient(circle at 90% 0%, rgba(var(--tnstack-footer-primary-rgb), 0.23), transparent 35%),
    linear-gradient(130deg, rgba(18, 27, 50, 0.96), rgba(10, 14, 24, 0.96));
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.34), inset 0 1px rgba(255, 255, 255, 0.05);
}

.tnstack-site-footer__cta::before {
  content: "";
  position: absolute;
  width: 260px;
  height: 260px;
  right: -120px;
  bottom: -160px;
  border: 42px solid rgba(var(--tnstack-footer-primary-rgb), 0.12);
  border-radius: 50%;
}

.tnstack-site-footer__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 14px;
  color: #b8c9ff;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.tnstack-site-footer__eyebrow i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--tnstack-footer-primary);
  box-shadow: 0 0 0 6px rgba(var(--tnstack-footer-primary-rgb), 0.14), 0 0 22px var(--tnstack-footer-primary);
}

.tnstack-site-footer__cta h2 {
  max-width: 760px;
  margin: 0 0 13px;
  color: var(--tnstack-footer-heading);
  font-size: clamp(28px, 3vw, 46px);
  font-weight: 800;
  line-height: 1.3;
}

.tnstack-site-footer__cta p {
  max-width: 680px;
  margin: 0;
  color: #b6c0cf;
  font-size: 15px;
  line-height: 1.75;
}

.tnstack-site-footer__cta-actions {
  position: relative;
  z-index: 1;
  display: grid;
  min-width: 215px;
  gap: 11px;
}

.tnstack-site-footer__button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 21px;
  border: 1px solid transparent;
  border-radius: 12px;
  color: #fff;
  font-size: 14px;
  font-weight: 750;
  text-decoration: none;
  transition: transform 0.25s ease, border-color 0.25s ease, background-color 0.25s ease, box-shadow 0.25s ease;
}

.tnstack-site-footer__button svg {
  width: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 0.25s ease;
}

.tnstack-site-footer__button--primary {
  background: var(--tnstack-footer-primary);
  box-shadow: 0 13px 28px rgba(var(--tnstack-footer-primary-rgb), 0.25);
}

.tnstack-site-footer__button--ghost {
  border-color: var(--tnstack-footer-border);
  background: rgba(255, 255, 255, 0.045);
}

.tnstack-site-footer__button:hover {
  color: #fff;
  transform: translateY(-2px);
}

.tnstack-site-footer__button--primary:hover {
  box-shadow: 0 17px 35px rgba(var(--tnstack-footer-primary-rgb), 0.36);
}

.tnstack-site-footer__button--ghost:hover {
  border-color: rgba(var(--tnstack-footer-primary-rgb), 0.5);
  background: rgba(var(--tnstack-footer-primary-rgb), 0.09);
}

.tnstack-site-footer__button:hover svg {
  transform: translateX(3px);
}

.tnstack-site-footer__main {
  display: grid;
  grid-template-columns: minmax(260px, 1.45fr) minmax(130px, 0.72fr) minmax(130px, 0.72fr) minmax(250px, 1fr);
  gap: clamp(32px, 5vw, 72px);
  padding: 70px 0 58px;
}

.tnstack-site-footer__logo {
  display: inline-flex;
  width: 184px;
  margin-bottom: 22px;
}

.tnstack-site-footer__logo img {
  display: block;
  width: 100%;
  height: auto;
}

.tnstack-site-footer__brand > p {
  max-width: 390px;
  margin: 0 0 25px;
  color: var(--tnstack-footer-text);
  font-size: 14px;
  line-height: 1.75;
}

.tnstack-site-footer__status {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tnstack-site-footer__status span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 10px;
  border: 1px solid var(--tnstack-footer-border);
  border-radius: 999px;
  color: #c7d0de;
  background: var(--tnstack-footer-surface);
  font-size: 11px;
  font-weight: 650;
}

.tnstack-site-footer__status svg {
  width: 14px;
  fill: none;
  stroke: #8fb0ff;
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.tnstack-site-footer__column h3 {
  position: relative;
  margin: 6px 0 23px;
  padding-bottom: 12px;
  color: var(--tnstack-footer-heading);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.tnstack-site-footer__column h3::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  border-radius: 999px;
  background: var(--tnstack-footer-primary);
  box-shadow: 0 0 14px rgba(var(--tnstack-footer-primary-rgb), 0.65);
}

.tnstack-site-footer__column ul {
  display: grid;
  gap: 13px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.tnstack-site-footer__column li {
  margin: 0;
}

.tnstack-site-footer__column li a {
  position: relative;
  display: inline-flex;
  color: var(--tnstack-footer-text);
  font-size: 13px;
  line-height: 1.55;
  text-decoration: none;
  transition: color 0.2s ease, transform 0.2s ease;
}

.tnstack-site-footer__column li a::before {
  content: "";
  width: 0;
  height: 1px;
  margin: auto 0;
  background: var(--tnstack-footer-primary);
  transition: width 0.2s ease, margin-right 0.2s ease;
}

.tnstack-site-footer__column li a:hover {
  color: #fff;
  transform: translateX(2px);
}

.tnstack-site-footer__column li a:hover::before {
  width: 12px;
  margin-right: 7px;
}

.tnstack-site-footer__contact {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.tnstack-site-footer__contact > a,
.tnstack-site-footer__contact-item {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 11px;
  align-items: center;
  width: 100%;
  margin-bottom: 12px;
  color: #d9e1ec;
  font-size: 12px;
  line-height: 1.45;
  text-decoration: none;
}

.tnstack-site-footer__contact > a:hover {
  color: #fff;
}

.tnstack-site-footer__contact-icon {
  display: inline-flex;
  width: 38px;
  height: 38px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--tnstack-footer-border);
  border-radius: 10px;
  color: #9eb7ff;
  background: var(--tnstack-footer-surface);
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.tnstack-site-footer__contact > a:hover .tnstack-site-footer__contact-icon {
  border-color: rgba(var(--tnstack-footer-primary-rgb), 0.5);
  background: rgba(var(--tnstack-footer-primary-rgb), 0.11);
}

.tnstack-site-footer__contact-icon svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.tnstack-site-footer__contact small {
  display: block;
  margin-bottom: 2px;
  color: #758195;
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.tnstack-site-footer__bottom {
  display: flex;
  min-height: 76px;
  align-items: center;
  justify-content: space-between;
  gap: 25px;
  border-top: 1px solid var(--tnstack-footer-border);
  color: #738094;
  font-size: 11px;
}

.tnstack-site-footer__bottom p {
  margin: 0;
}

.tnstack-site-footer__bottom-links {
  display: flex;
  align-items: center;
  gap: 18px;
}

.tnstack-site-footer__zalo {
  display: inline-flex;
  width: 36px;
  height: 36px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--tnstack-footer-border);
  border-radius: 10px;
  color: #aebeff;
  background: var(--tnstack-footer-surface);
  transition: color 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

.tnstack-site-footer__zalo:hover {
  border-color: rgba(var(--tnstack-footer-primary-rgb), 0.55);
  color: #fff;
  transform: translateY(-2px);
}

.tnstack-site-footer__zalo svg {
  width: 19px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.55;
  stroke-linecap: round;
  stroke-linejoin: round;
}

@media (max-width: 1050px) {
  .tnstack-site-footer__cta {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .tnstack-site-footer__cta-actions {
    display: flex;
    min-width: 0;
  }

  .tnstack-site-footer__main {
    grid-template-columns: 1.4fr 0.8fr 0.8fr;
  }

  .tnstack-site-footer__contact {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
  }

  .tnstack-site-footer__contact h3 {
    grid-column: 1 / -1;
  }
}

@media (max-width: 720px) {
  .tnstack-site-footer__container {
    width: min(100% - 32px, var(--theme-normal-container-max-width, 1290px));
    padding-top: 48px;
  }

  .tnstack-site-footer__cta {
    padding: 28px 22px;
    border-radius: 20px;
  }

  .tnstack-site-footer__cta h2 {
    font-size: clamp(26px, 9vw, 36px);
  }

  .tnstack-site-footer__cta-actions {
    display: grid;
    width: 100%;
  }

  .tnstack-site-footer__main {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 38px 24px;
    padding: 52px 0 42px;
  }

  .tnstack-site-footer__brand,
  .tnstack-site-footer__contact {
    grid-column: 1 / -1;
  }

  .tnstack-site-footer__contact {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .tnstack-site-footer__bottom {
    min-height: 0;
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 0 30px;
  }

  .tnstack-site-footer__bottom-links {
    width: 100%;
    justify-content: space-between;
  }
}

@media (max-width: 420px) {
  .tnstack-site-footer__main {
    grid-template-columns: 1fr;
  }

  .tnstack-site-footer__brand,
  .tnstack-site-footer__contact {
    grid-column: auto;
  }

  .tnstack-site-footer__bottom-links span {
    max-width: 250px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .tnstack-site-footer *,
  .tnstack-site-footer *::before,
  .tnstack-site-footer *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}