/* Điều Hòa Nam Anh — About page. */

.na-about-page {
  color: var(--na-text);
  background: #fff;
}

.na-about-page *,
.na-about-page *::before,
.na-about-page *::after {
  box-sizing: border-box;
}

.na-about-container {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.na-about-eyebrow,
.na-about-section-label {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 12px;
  color: var(--na-blue);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 1.6px;
}

.na-about-eyebrow::before,
.na-about-section-label::before {
  content: "";
  width: 24px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
}

.na-about-section-heading {
  max-width: 680px;
  margin-bottom: 30px;
}

.na-about-section-heading--center {
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.na-about-section-heading--center .na-about-section-label {
  justify-content: center;
}

.na-about-section-heading h2,
.na-about-intro h2,
.na-about-why h2,
.na-about-cta h2 {
  margin: 0;
  color: var(--na-text);
  font-size: clamp(29px, 3.4vw, 42px);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: -0.8px;
}

.na-about-section-heading > p {
  margin: 13px 0 0;
  color: var(--na-text-light);
  font-size: 14px;
  line-height: 1.75;
}

/* =========================================================
   HERO
========================================================= */

.na-about-hero {
  position: relative;
  min-height: 610px;
  overflow: hidden;
  background:
    radial-gradient(circle at 82% 30%, rgba(55, 156, 241, 0.13), transparent 28%),
    linear-gradient(135deg, #f5faff 0%, #fff 58%, #eef7ff 100%);
}

.na-about-hero::before {
  content: "";
  position: absolute;
  width: 520px;
  height: 520px;
  top: -280px;
  left: -180px;
  border: 1px solid rgba(11, 114, 231, 0.09);
  border-radius: 50%;
}

.na-about-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(420px, 0.92fr);
  align-items: center;
  gap: 55px;
  min-height: 610px;
  padding: 58px 0 72px;
}

.na-about-hero h1 {
  max-width: 680px;
  margin: 0 0 20px;
  color: var(--na-text);
  font-size: clamp(42px, 5vw, 62px);
  font-weight: 850;
  line-height: 1.1;
  letter-spacing: -1.8px;
}

.na-about-hero__content > p {
  max-width: 650px;
  margin: 0;
  color: var(--na-text-light);
  font-size: 16px;
  line-height: 1.78;
}

.na-about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.na-about-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 11px;
  min-height: 50px;
  padding: 0 22px;
  font-size: 13px;
  font-weight: 750;
  border: 1px solid transparent;
  border-radius: 11px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.na-about-button:hover {
  transform: translateY(-2px);
}

.na-about-button--primary {
  color: #fff;
  background: linear-gradient(135deg, var(--na-blue), var(--na-blue-dark));
  box-shadow: 0 9px 23px rgba(11, 114, 231, 0.24);
}

.na-about-button--primary:hover {
  color: #fff;
  box-shadow: 0 13px 30px rgba(11, 114, 231, 0.31);
}

.na-about-button--ghost {
  color: var(--na-blue);
  background: #fff;
  border-color: #cfe2f6;
}

.na-about-button--ghost:hover {
  color: var(--na-blue-dark);
  border-color: var(--na-blue);
}

.na-about-hero__trust {
  display: flex;
  flex-wrap: wrap;
  gap: 9px 20px;
  margin-top: 28px;
}

.na-about-hero__trust > span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: #53647a;
  font-size: 11px;
  font-weight: 650;
}

.na-about-hero__trust b {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  color: #15935a;
  font-size: 10px;
  background: #e8f8f0;
  border-radius: 50%;
}

.na-about-hero__visual {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 450px;
}

.na-about-visual__circle {
  position: absolute;
  border-radius: 50%;
}

.na-about-visual__circle--large {
  width: 410px;
  height: 410px;
  background: linear-gradient(145deg, #e5f3ff, #f7fbff);
  border: 1px solid #d8eafa;
  box-shadow: inset 0 0 60px rgba(11, 114, 231, 0.04);
}

.na-about-visual__circle--small {
  width: 310px;
  height: 310px;
  border: 1px dashed rgba(11, 114, 231, 0.22);
}

.na-about-ac-unit {
  position: relative;
  z-index: 3;
  width: 390px;
  height: 132px;
  padding: 24px 26px;
  background: linear-gradient(180deg, #fff 0%, #f4f8fb 100%);
  border: 1px solid #dce6ef;
  border-radius: 16px 16px 24px 24px;
  box-shadow: 0 28px 60px rgba(37, 79, 118, 0.18), inset 0 -5px 12px rgba(69, 100, 128, 0.06);
  transform: translateY(-14px);
}

.na-about-ac-unit::before {
  content: "";
  position: absolute;
  left: 25px;
  right: 25px;
  bottom: 22px;
  height: 3px;
  background: #dce5ed;
  border-radius: 5px;
}

.na-about-ac-unit__brand {
  color: #8796a5;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 1.2px;
}

.na-about-ac-unit__display {
  position: absolute;
  top: 20px;
  right: 28px;
  color: var(--na-blue);
  font-size: 13px;
  font-weight: 750;
}

.na-about-ac-unit__vent {
  position: absolute;
  right: 42px;
  bottom: 10px;
  left: 42px;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 11px;
}

.na-about-ac-unit__vent i {
  height: 12px;
  background: #cbd8e4;
  border-radius: 1px 1px 6px 6px;
  transform: skewX(-8deg);
}

.na-about-airflow {
  position: absolute;
  z-index: 2;
  width: 110px;
  height: 80px;
  bottom: 52px;
  border-right: 2px solid rgba(11, 114, 231, 0.18);
  border-bottom: 2px solid rgba(11, 114, 231, 0.18);
  border-radius: 0 0 80px;
}

.na-about-airflow--one { left: 105px; transform: rotate(17deg); }
.na-about-airflow--two { left: 190px; bottom: 30px; height: 100px; }
.na-about-airflow--three { right: 80px; transform: rotate(-17deg) scaleX(-1); }

.na-about-visual-note {
  position: absolute;
  z-index: 5;
  right: -8px;
  bottom: 50px;
  display: flex;
  align-items: center;
  gap: 11px;
  min-width: 175px;
  padding: 13px 15px;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid #e1ebf4;
  border-radius: 13px;
  box-shadow: 0 15px 35px rgba(41, 83, 122, 0.15);
  backdrop-filter: blur(7px);
}

.na-about-visual-note > span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 37px;
  height: 37px;
  color: #fff;
  font-size: 15px;
  background: #19a463;
  border-radius: 10px;
}

.na-about-visual-note :is(strong, small) {
  display: block;
}

.na-about-visual-note strong {
  color: var(--na-text);
  font-size: 12px;
}

.na-about-visual-note small {
  margin-top: 2px;
  color: var(--na-text-light);
  font-size: 9px;
}

/* =========================================================
   INTRO & DIRECTION
========================================================= */

.na-about-intro {
  padding: 82px 0 72px;
}

.na-about-intro__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 75px;
  align-items: start;
}

.na-about-intro__copy p {
  margin: 0 0 15px;
  color: var(--na-text-light);
  font-size: 14px;
  line-height: 1.82;
}

.na-about-intro__copy a {
  display: inline-flex;
  gap: 9px;
  margin-top: 7px;
  color: var(--na-blue);
  font-size: 13px;
  font-weight: 750;
}

.na-about-direction {
  padding-bottom: 82px;
}

.na-about-direction__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.na-about-direction-card {
  position: relative;
  min-height: 270px;
  padding: 29px 27px;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--na-border);
  border-radius: var(--na-radius);
  box-shadow: var(--na-shadow);
}

.na-about-direction-card--featured {
  color: #fff;
  background: linear-gradient(145deg, var(--na-blue), var(--na-blue-dark));
  border-color: transparent;
  box-shadow: 0 16px 38px rgba(11, 114, 231, 0.24);
}

.na-about-direction-card__number {
  position: absolute;
  top: 13px;
  right: 18px;
  color: #edf2f7;
  font-size: 54px;
  font-weight: 850;
  line-height: 1;
}

.na-about-direction-card--featured .na-about-direction-card__number {
  color: rgba(255, 255, 255, 0.12);
}

.na-about-direction-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: 25px;
  color: var(--na-blue);
  font-size: 24px;
  background: var(--na-blue-soft);
  border-radius: 13px;
}

.na-about-direction-card--featured .na-about-direction-card__icon {
  color: #fff;
  background: rgba(255, 255, 255, 0.14);
}

.na-about-direction-card h3 {
  margin: 0 0 10px;
  color: var(--na-text);
  font-size: 20px;
  font-weight: 800;
}

.na-about-direction-card--featured h3 { color: #fff; }

.na-about-direction-card p {
  margin: 0;
  color: var(--na-text-light);
  font-size: 13px;
  line-height: 1.75;
}

.na-about-direction-card--featured p { color: rgba(255, 255, 255, 0.76); }

/* =========================================================
   VALUES
========================================================= */

.na-about-values {
  padding: 78px 0 86px;
  background: #f5f8fc;
}

.na-about-values__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.na-about-value-card {
  position: relative;
  min-height: 230px;
  padding: 27px 23px;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--na-border);
  border-radius: 16px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.na-about-value-card:hover {
  border-color: #c7def5;
  box-shadow: 0 14px 32px rgba(20, 65, 110, 0.1);
  transform: translateY(-4px);
}

.na-about-value-card > span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 43px;
  height: 43px;
  margin-bottom: 29px;
  color: var(--na-blue);
  font-size: 12px;
  font-weight: 850;
  background: var(--na-blue-soft);
  border-radius: 12px;
}

.na-about-value-card h3 {
  margin: 0 0 9px;
  color: var(--na-text);
  font-size: 18px;
  font-weight: 800;
}

.na-about-value-card p {
  margin: 0;
  color: var(--na-text-light);
  font-size: 12px;
  line-height: 1.72;
}

/* =========================================================
   SERVICES
========================================================= */

.na-about-services {
  padding: 84px 0;
}

.na-about-services__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.na-about-service-card {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 24px;
  background: #fff;
  border: 1px solid var(--na-border);
  border-radius: 15px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.na-about-service-card:hover {
  border-color: #bedaf5;
  box-shadow: 0 11px 28px rgba(20, 65, 110, 0.08);
}

.na-about-service-card__icon {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  color: var(--na-blue);
  font-size: 22px;
  font-weight: 750;
  background: var(--na-blue-soft);
  border-radius: 14px;
}

.na-about-service-card h3 {
  margin: 1px 0 7px;
  color: var(--na-text);
  font-size: 16px;
  font-weight: 800;
}

.na-about-service-card p {
  margin: 0;
  color: var(--na-text-light);
  font-size: 12px;
  line-height: 1.68;
}

/* =========================================================
   PROCESS
========================================================= */

.na-about-process {
  padding: 80px 0 88px;
  background: var(--na-blue-soft);
}

.na-about-process__grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 28px;
}

.na-about-process__grid::before {
  content: "";
  position: absolute;
  top: 27px;
  right: 10%;
  left: 10%;
  height: 1px;
  background: #cfe2f6;
}

.na-about-process__grid article {
  position: relative;
  text-align: center;
}

.na-about-process__grid article > span {
  position: relative;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  margin-bottom: 22px;
  color: #fff;
  font-size: 12px;
  font-weight: 850;
  background: var(--na-blue);
  border: 6px solid #fff;
  border-radius: 50%;
  box-shadow: 0 6px 18px rgba(11, 114, 231, 0.17);
}

.na-about-process__grid h3 {
  margin: 0 0 8px;
  color: var(--na-text);
  font-size: 15px;
  font-weight: 800;
}

.na-about-process__grid p {
  margin: 0;
  color: var(--na-text-light);
  font-size: 11px;
  line-height: 1.7;
}

/* =========================================================
   WHY NAM ANH
========================================================= */

.na-about-why {
  position: relative;
  padding: 90px 0;
  overflow: hidden;
  color: #fff;
  background: linear-gradient(135deg, #0756b8, #0b72e7 62%, #148fde);
}

.na-about-why::before {
  content: "";
  position: absolute;
  width: 500px;
  height: 500px;
  right: -220px;
  bottom: -300px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 50%;
}

.na-about-why__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(330px, 0.8fr);
  align-items: center;
  gap: 70px;
}

.na-about-why .na-about-section-label,
.na-about-why h2 {
  color: #fff;
}

.na-about-why__content > p {
  max-width: 630px;
  margin: 15px 0 25px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 14px;
  line-height: 1.75;
}

.na-about-why__content ul {
  display: grid;
  gap: 14px;
  padding: 0;
  margin: 0;
}

.na-about-why__content li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin: 0;
  list-style: none;
}

.na-about-why__content li > span {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 27px;
  height: 27px;
  color: #fff;
  font-size: 11px;
  font-weight: 800;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 8px;
}

.na-about-why__content li :is(strong, small) { display: block; }
.na-about-why__content li strong { color: #fff; font-size: 13px; }
.na-about-why__content li small { margin-top: 3px; color: rgba(255, 255, 255, 0.69); font-size: 11px; }

.na-about-why__panel {
  overflow: hidden;
  color: var(--na-text);
  background: #fff;
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 18px;
  box-shadow: 0 24px 55px rgba(0, 44, 99, 0.24);
}

.na-about-why__panel-head {
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 20px 22px;
  color: #fff;
  background: #075bbd;
}

.na-about-why__panel-head > span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 43px;
  height: 43px;
  font-size: 20px;
  background: rgba(255, 255, 255, 0.13);
  border-radius: 11px;
}

.na-about-why__panel-head :is(strong, small) { display: block; }
.na-about-why__panel-head strong { color: #fff; font-size: 14px; }
.na-about-why__panel-head small { margin-top: 3px; color: rgba(255, 255, 255, 0.68); font-size: 9px; }

.na-about-why__panel-body {
  padding: 23px;
}

.na-about-why__panel-body > p {
  margin: 0 0 15px;
  color: var(--na-text-light);
  font-size: 12px;
  line-height: 1.65;
}

.na-about-why__panel-body > a {
  display: block;
  padding: 13px 14px;
  margin-top: 9px;
  color: var(--na-text);
  background: #f6faff;
  border: 1px solid #dfebf7;
  border-radius: 10px;
}

.na-about-why__panel-body > a:hover {
  color: var(--na-blue);
  border-color: #bcd8f4;
}

.na-about-why__panel-body a :is(small, strong) { display: block; }
.na-about-why__panel-body a small { color: var(--na-text-light); font-size: 9px; }
.na-about-why__panel-body a strong { margin-top: 3px; color: inherit; font-size: 13px; }

/* =========================================================
   CTA
========================================================= */

.na-about-cta {
  padding: 52px 0;
  background: #fff;
}

.na-about-cta__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 35px;
  padding: 34px 38px;
  color: #fff;
  background: linear-gradient(125deg, #172033, #243b5a);
  border-radius: 18px;
  box-shadow: 0 18px 42px rgba(23, 32, 51, 0.17);
}

.na-about-cta__inner > div:first-child > span {
  display: block;
  margin-bottom: 7px;
  color: #8ec8ff;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 1.4px;
}

.na-about-cta h2 {
  max-width: 660px;
  color: #fff;
  font-size: 28px;
}

.na-about-cta__actions {
  flex: 0 0 auto;
  text-align: center;
}

.na-about-button--white {
  color: var(--na-blue-dark);
  background: #fff;
}

.na-about-button--white:hover { color: var(--na-blue); }

.na-about-cta__phone {
  display: block;
  margin-top: 9px;
  color: rgba(255, 255, 255, 0.65);
  font-size: 10px;
}

.na-about-cta__phone:hover { color: #fff; }

/* =========================================================
   RESPONSIVE
========================================================= */

@media (max-width: 999px) {
  .na-about-hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(340px, 0.8fr);
    gap: 30px;
  }

  .na-about-ac-unit { width: 330px; }
  .na-about-visual__circle--large { width: 350px; height: 350px; }
  .na-about-visual-note { right: 0; }

  .na-about-values__grid,
  .na-about-process__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .na-about-process__grid::before { display: none; }
}

@media (max-width: 849px) {
  .na-about-hero,
  .na-about-hero__grid {
    min-height: auto;
  }

  .na-about-hero__grid {
    grid-template-columns: 1fr;
    padding: 70px 0;
  }

  .na-about-hero__content { max-width: 720px; }
  .na-about-hero__visual { display: none; }

  .na-about-intro__grid {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .na-about-direction__grid {
    grid-template-columns: 1fr;
  }

  .na-about-direction-card { min-height: auto; }

  .na-about-why__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .na-about-cta__inner {
    display: grid;
    text-align: center;
  }
}

@media (max-width: 549px) {
  .na-about-container {
    width: min(100% - 28px, 1180px);
  }

  .na-about-hero__grid { padding: 54px 0 58px; }

  .na-about-hero h1 {
    font-size: 38px;
    letter-spacing: -1px;
  }

  .na-about-hero__content > p { font-size: 14px; }

  .na-about-hero__actions { display: grid; }
  .na-about-button { width: 100%; }
  .na-about-hero__trust { display: grid; }

  .na-about-intro { padding: 58px 0 52px; }
  .na-about-direction { padding-bottom: 58px; }

  .na-about-direction-card {
    padding: 24px 21px;
    border-radius: 14px;
  }

  .na-about-values,
  .na-about-services,
  .na-about-process,
  .na-about-why {
    padding: 58px 0;
  }

  .na-about-values__grid,
  .na-about-services__grid,
  .na-about-process__grid {
    grid-template-columns: 1fr;
  }

  .na-about-value-card { min-height: auto; }

  .na-about-service-card {
    padding: 19px;
  }

  .na-about-process__grid {
    gap: 24px;
  }

  .na-about-why__panel { border-radius: 14px; }

  .na-about-cta {
    padding: 34px 0;
  }

  .na-about-cta__inner {
    padding: 27px 19px;
    border-radius: 14px;
  }

  .na-about-cta h2 { font-size: 23px; }
}

@media (prefers-reduced-motion: reduce) {
  .na-about-page * {
    transition-duration: 0.01ms !important;
  }
}