:root {
  --bg-0: #0d1219;
  --bg-1: #111926;
  --bg-2: #162333;
  --sea-1: #59c9ef;
  --sea-2: #229ac7;
  --sea-3: #0d6e95;
  --lime: #bfe86a;
  --ink-1: #eef5ff;
  --ink-2: #c8d9ea;
  --ink-3: #95aac0;
  --line: rgba(130, 186, 216, 0.22);
  --glass: rgba(12, 24, 39, 0.52);
  --glass-strong: rgba(17, 32, 50, 0.68);
  --shadow: 0 24px 44px rgba(0, 0, 0, 0.35);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Be Vietnam Pro", sans-serif;
  color: var(--ink-1);
  background:
    radial-gradient(circle at 8% -16%, rgba(76, 190, 255, 0.22), transparent 38%),
    radial-gradient(circle at 90% 0%, rgba(84, 230, 220, 0.14), transparent 42%),
    radial-gradient(circle at 50% 110%, rgba(24, 108, 163, 0.28), transparent 52%),
    linear-gradient(176deg, var(--bg-0), var(--bg-1) 52%, var(--bg-2));
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 10px;
  padding: 8px 12px;
  border-radius: 8px;
  color: #00131d;
  background: var(--lime);
  z-index: 9999;
}

.skip-link:focus {
  left: 10px;
}

.container {
  width: min(1180px, 92vw);
  margin: 0 auto;
}

.glass-panel {
  border: 1px solid var(--line);
  background: linear-gradient(138deg, rgba(16, 34, 53, 0.82), rgba(12, 25, 41, 0.74));
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 20px 36px rgba(0, 0, 0, 0.3);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1200;
  border-bottom: 1px solid rgba(139, 201, 237, 0.16);
  background: rgba(7, 15, 27, 0.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.nav-wrap {
  min-height: 84px;
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 48px;
  height: 48px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  font-size: 1.25rem;
  color: #031824;
  background: linear-gradient(145deg, var(--sea-1), #dcfbff);
  box-shadow: 0 14px 24px rgba(23, 161, 215, 0.35);
}

.brand-text {
  display: grid;
  line-height: 1.1;
}

.brand-text strong {
  font-family: "Space Grotesk", sans-serif;
  letter-spacing: 0.4px;
  font-size: 1.22rem;
}

.brand-text small {
  color: var(--ink-3);
  font-size: 0.8rem;
}

.main-nav {
  justify-self: center;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.main-nav a {
  color: var(--ink-2);
  font-weight: 600;
  font-size: 0.94rem;
  padding: 8px 10px;
  border-radius: 10px;
  transition: background 0.25s ease, color 0.25s ease;
}

.main-nav a:hover {
  background: rgba(66, 144, 183, 0.2);
  color: var(--ink-1);
}

.menu-btn {
  border: 1px solid rgba(160, 212, 240, 0.34);
  background: rgba(28, 48, 72, 0.72);
  color: var(--ink-1);
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: none;
}

.hotline-pill {
  justify-self: end;
  display: inline-flex;
  gap: 8px;
  align-items: center;
  padding: 10px 14px;
  border-radius: 999px;
  color: #e8f7ff;
  font-weight: 800;
  border: 1px solid rgba(142, 209, 239, 0.3);
  background: linear-gradient(145deg, rgba(27, 88, 124, 0.92), rgba(18, 60, 90, 0.92));
  box-shadow: 0 10px 18px rgba(0, 0, 0, 0.25);
}

.hero {
  padding: clamp(54px, 8vw, 94px) 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  width: min(720px, 62vw);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(92, 232, 239, 0.2), transparent 66%);
  right: -180px;
  top: -220px;
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
  align-items: stretch;
}

.panel {
  border-radius: var(--radius-xl);
  padding: clamp(20px, 3vw, 34px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  color: #082334;
  padding: 8px 12px;
  border-radius: 999px;
  background: linear-gradient(145deg, #7ed1ee, #c5ebf7);
}

.hero h1 {
  margin: 16px 0 14px;
  font-size: clamp(1.82rem, 4.3vw, 3rem);
  line-height: 1.24;
  font-family: "Space Grotesk", sans-serif;
  letter-spacing: 0.2px;
}

.hero p {
  color: var(--ink-2);
  margin: 0;
}

.hero .eyebrow {
  color: #072638;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  border: 1px solid transparent;
  padding: 11px 18px;
  font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  color: #042031;
  background: linear-gradient(145deg, #b8e26e, #dcf1a7);
  box-shadow: 0 10px 18px rgba(141, 171, 57, 0.24);
}

.btn-ghost {
  color: #d5e8f7;
  border: 1px solid rgba(139, 201, 234, 0.28);
  background: rgba(20, 42, 63, 0.74);
}

.tick-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.tick-list li {
  padding: 12px 14px 12px 38px;
  border-radius: 14px;
  border: 1px solid rgba(119, 176, 207, 0.24);
  background: rgba(17, 33, 52, 0.72);
  color: var(--ink-2);
  position: relative;
}

.tick-list li::before {
  content: "\f058";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  position: absolute;
  left: 13px;
  top: 50%;
  transform: translateY(-50%);
  color: #79d5f3;
}

.hero-right {
  display: grid;
  gap: 14px;
}

.info-tile {
  border-radius: var(--radius-lg);
  padding: 20px;
}

.info-tile h2 {
  margin: 0 0 10px;
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.1rem;
}

.info-tile p {
  margin: 0;
}

.info-tile .big {
  font-size: clamp(1.55rem, 3.4vw, 2rem);
  line-height: 1.2;
  color: #8fe2f4;
  font-weight: 800;
}

.section {
  padding: clamp(54px, 7vw, 90px) 0;
}

.section.alt {
  background: linear-gradient(180deg, rgba(14, 28, 44, 0.66), rgba(10, 20, 33, 0.56));
  border-top: 1px solid rgba(152, 204, 232, 0.12);
  border-bottom: 1px solid rgba(152, 204, 232, 0.1);
}

.section-head {
  margin-bottom: 26px;
}

.kicker {
  margin: 0 0 10px;
  color: #8ddff0;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  font-size: 0.8rem;
  font-weight: 700;
}

.section-head h2 {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(1.4rem, 3vw, 2.2rem);
  line-height: 1.3;
}

.section-head .desc {
  color: var(--ink-2);
  margin-top: 10px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.service-card {
  border-radius: var(--radius-md);
  padding: 20px;
}

.service-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  color: #02212f;
  background: linear-gradient(145deg, #78cbe5, #bfe9f6);
  margin-bottom: 14px;
}

.service-card h3 {
  margin: 0 0 10px;
  font-size: 1.05rem;
}

.service-card p {
  margin: 0;
  color: var(--ink-2);
}

.price-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.price-item {
  border-radius: var(--radius-md);
  padding: 18px;
}

.price-item h3 {
  margin: 0 0 10px;
  font-size: 1rem;
}

.money {
  margin: 0 0 8px;
  font-family: "Space Grotesk", sans-serif;
  color: #9df7ff;
  font-size: 1.25rem;
  font-weight: 700;
}

.price-item p {
  margin: 0;
  color: var(--ink-2);
}

.timeline {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.timeline li {
  border-radius: var(--radius-md);
  padding: 16px;
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 14px;
  align-items: flex-start;
}

.timeline span {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-family: "Space Grotesk", sans-serif;
  color: #032130;
  background: linear-gradient(145deg, #73c8e3, #bae8f6);
}

.timeline h3 {
  margin: 0 0 6px;
  font-size: 1.03rem;
}

.timeline p {
  margin: 0;
  color: var(--ink-2);
}

.area-shell {
  border-radius: var(--radius-lg);
  padding: clamp(20px, 3vw, 32px);
}

.area-intro {
  margin: 0 0 18px;
  color: var(--ink-2);
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chip-list span {
  border-radius: 999px;
  padding: 8px 12px;
  border: 1px solid rgba(124, 182, 213, 0.28);
  background: rgba(19, 40, 60, 0.76);
  color: #c4e5f4;
  font-size: 0.9rem;
  font-weight: 600;
}

.faq-list {
  display: grid;
  gap: 10px;
}

.faq-list details {
  border-radius: var(--radius-md);
  padding: 14px 16px;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 700;
}

.faq-list p {
  margin: 10px 0 0;
  color: var(--ink-2);
}

.contact-wrap {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 16px;
}

.contact-card-main,
.contact-form {
  border-radius: var(--radius-lg);
  padding: clamp(20px, 3vw, 32px);
}

.contact-card-main h2 {
  margin: 0 0 10px;
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(1.3rem, 2.5vw, 2rem);
}

.contact-card-main p {
  margin: 0;
  color: var(--ink-2);
}

.contact-actions {
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.contact-form {
  display: grid;
  gap: 12px;
}

.contact-form label {
  display: grid;
  gap: 6px;
  color: #d3ecff;
  font-weight: 600;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid rgba(157, 216, 245, 0.34);
  border-radius: 12px;
  padding: 11px 12px;
  color: var(--ink-1);
  background: rgba(14, 30, 47, 0.62);
  font-family: inherit;
}

.contact-form textarea {
  resize: vertical;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: #8deaff;
  box-shadow: 0 0 0 3px rgba(87, 193, 232, 0.22);
}

.form-note {
  margin: 0;
  color: var(--ink-3);
  font-size: 0.87rem;
}

.site-footer {
  padding: 34px 0 24px;
  border-top: 1px solid rgba(152, 204, 232, 0.18);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-items: flex-end;
  justify-content: space-between;
}

.site-footer h3 {
  margin: 0 0 8px;
  font-family: "Space Grotesk", sans-serif;
}

.site-footer p {
  margin: 0;
  color: var(--ink-3);
  max-width: 680px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-links a {
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid rgba(154, 215, 244, 0.2);
  color: var(--ink-2);
}

.copy {
  margin: 18px 0 0;
  text-align: center;
  font-size: 0.88rem;
  color: var(--ink-3);
}

.floating-cta {
  position: fixed;
  right: 16px;
  bottom: 18px;
  display: grid;
  gap: 10px;
  z-index: 1000;
}

.float-btn {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 1.15rem;
  box-shadow: 0 14px 20px rgba(0, 0, 0, 0.35);
}

.float-btn.call {
  background: linear-gradient(145deg, #29b7dd, #0d78ae);
}

.float-btn.zalo {
  background: linear-gradient(145deg, #298cff, #0a57ff);
}

@media (max-width: 1023px) {
  .nav-wrap {
    grid-template-columns: auto 1fr auto;
  }

  .menu-btn {
    display: inline-grid;
    place-items: center;
  }

  .main-nav {
    position: absolute;
    right: 4vw;
    top: 78px;
    width: min(320px, 92vw);
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: 10px;
    border-radius: 14px;
    border: 1px solid rgba(154, 216, 245, 0.28);
    background: rgba(11, 23, 38, 0.94);
    box-shadow: var(--shadow);
  }

  .main-nav.show {
    display: flex;
  }

  .hotline-pill {
    display: none;
  }

  .hero-grid,
  .contact-wrap {
    grid-template-columns: 1fr;
  }

  .service-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .price-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 767px) {
  .site-header {
    position: sticky;
  }

  .nav-wrap {
    min-height: 76px;
  }

  .brand-mark {
    width: 42px;
    height: 42px;
  }

  .brand-text strong {
    font-size: 1.08rem;
  }

  .service-grid,
  .price-list {
    grid-template-columns: 1fr;
  }

  .timeline li {
    grid-template-columns: 44px 1fr;
  }

  .timeline span {
    width: 44px;
    height: 44px;
    border-radius: 12px;
  }

  .floating-cta {
    right: 12px;
    bottom: 14px;
  }

  .float-btn {
    width: 50px;
    height: 50px;
  }
}