:root {
  --bg-dark: #081224;
  --bg-deep: #0f2a52;
  --surface: #ffffff;
  --surface-soft: #f4f7fc;
  --text-main: #111827;
  --text-muted: #4b5563;
  --red: #e11d2e;
  --red-dark: #be1020;
  --yellow: #f7c948;
  --line: #d9e1ee;
  --radius: 16px;
  --shadow: 0 14px 30px rgba(8, 18, 36, 0.15);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Be Vietnam Pro", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--text-main);
  background: var(--surface-soft);
}

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

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

section[id] {
  scroll-margin-top: 130px;
}

.container {
  width: min(1120px, 92%);
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: #ffffff;
  color: #111827;
  padding: 0.75rem 1rem;
  border-radius: 10px;
  font-weight: 700;
  z-index: 2000;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1100;
  background: rgba(7, 14, 28, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.header-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.brand-badge {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-family: "Oswald", sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: #ffffff;
  background: linear-gradient(135deg, var(--red), #ff5f3a);
  box-shadow: 0 9px 18px rgba(225, 29, 46, 0.45);
  flex-shrink: 0;
}

.brand-text {
  min-width: 0;
}

.brand-text strong {
  display: block;
  color: #ffffff;
  font-size: 1rem;
  line-height: 1.22;
}

.brand-text small {
  display: block;
  color: #f9d56d;
  font-size: 0.75rem;
  font-weight: 600;
}

.main-nav {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.main-nav ul {
  list-style: none;
  margin: 0;
  padding: 0.55rem 0 0.75rem;
  display: flex;
  gap: 0.4rem;
  overflow-x: auto;
  scrollbar-width: none;
}

.main-nav ul::-webkit-scrollbar {
  display: none;
}

.main-nav a {
  display: block;
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
  color: #dbe7ff;
  font-size: 0.92rem;
  font-weight: 600;
  white-space: nowrap;
  transition: background 0.25s ease, color 0.25s ease;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  white-space: nowrap;
  padding: 0.72rem 1.15rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.95rem;
  font-weight: 700;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, border-color 0.25s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:focus-visible {
  outline: 3px solid rgba(247, 201, 72, 0.45);
  outline-offset: 2px;
}

.btn-call {
  background: var(--yellow);
  color: #251805;
  box-shadow: 0 8px 18px rgba(247, 201, 72, 0.34);
}

.btn-call:hover {
  background: #ffd970;
  box-shadow: 0 12px 21px rgba(247, 201, 72, 0.44);
}

.btn-primary {
  background: var(--red);
  color: #ffffff;
  box-shadow: 0 10px 24px rgba(225, 29, 46, 0.4);
}

.btn-primary:hover {
  background: var(--red-dark);
  box-shadow: 0 14px 26px rgba(225, 29, 46, 0.5);
}

.btn-secondary {
  background: transparent;
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.45);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.76);
}

.hero {
  position: relative;
  overflow: hidden;
  color: #ffffff;
  background: linear-gradient(138deg, #071122 0%, #0d2447 48%, #103c74 100%);
  padding: 2.5rem 0 3rem;
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(2px);
  pointer-events: none;
}

.hero::before {
  width: 340px;
  height: 340px;
  top: -150px;
  left: -70px;
  background: radial-gradient(circle, rgba(247, 201, 72, 0.36), transparent 70%);
}

.hero::after {
  width: 420px;
  height: 420px;
  right: -140px;
  bottom: -190px;
  background: radial-gradient(circle, rgba(225, 29, 46, 0.24), transparent 72%);
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 1.5rem;
  align-items: center;
}

.eyebrow {
  margin: 0 0 0.72rem;
  display: inline-block;
  font-size: 0.77rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--yellow);
}

.hero h1 {
  margin: 0 0 0.85rem;
  font-family: "Oswald", sans-serif;
  font-size: clamp(1.95rem, 5.8vw, 3.15rem);
  line-height: 1.16;
  letter-spacing: 0.02em;
}

.hero p {
  margin: 0;
  color: #e8edf8;
  max-width: 62ch;
}

.hero-actions {
  margin-top: 1.2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.68rem;
}

.hero-badges {
  list-style: none;
  margin: 1.2rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.58rem;
}

.hero-badges li {
  border: 1px solid rgba(255, 255, 255, 0.24);
  background: rgba(12, 17, 28, 0.55);
  color: #f8fbff;
  border-radius: 999px;
  padding: 0.42rem 0.78rem;
  font-size: 0.85rem;
  font-weight: 600;
  backdrop-filter: blur(3px);
}

.hero-media {
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.06);
  padding: 0.6rem;
  box-shadow: 0 15px 35px rgba(5, 9, 18, 0.45);
}

.hero-media img {
  width: 100%;
  max-height: 410px;
  object-fit: cover;
  border-radius: calc(var(--radius) - 6px);
}

.hero-media figcaption {
  padding: 0.62rem 0.35rem 0.2rem;
  color: #d4dff2;
  font-size: 0.86rem;
}

.section {
  padding: 3.4rem 0;
}

.section-head {
  max-width: 760px;
  margin-bottom: 1.4rem;
}

.section-head h2 {
  margin: 0 0 0.46rem;
  font-size: clamp(1.45rem, 4.2vw, 2.3rem);
  line-height: 1.26;
  color: #0e1729;
}

.section-head p {
  margin: 0;
  color: var(--text-muted);
}

.card-grid {
  display: grid;
  gap: 1rem;
}

.card {
  padding: 1.15rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: 0 5px 14px rgba(16, 24, 40, 0.05);
  transition: transform 0.24s ease, box-shadow 0.24s ease, border-color 0.24s ease;
}

.card:hover {
  transform: translateY(-5px);
  border-color: rgba(225, 29, 46, 0.34);
  box-shadow: var(--shadow);
}

.icon {
  width: 2.56rem;
  height: 2.56rem;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: linear-gradient(145deg, #fff4d1, #ffd86f);
  font-size: 1.2rem;
  margin-bottom: 0.85rem;
}

.card h3 {
  margin: 0 0 0.35rem;
  font-size: 1.03rem;
  line-height: 1.35;
}

.card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.reasons {
  position: relative;
  overflow: hidden;
  background: linear-gradient(132deg, #081427 0%, #11294d 100%);
  color: #ffffff;
}

.reasons::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 18% 12%, rgba(247, 201, 72, 0.15), transparent 38%),
    radial-gradient(circle at 84% 78%, rgba(225, 29, 46, 0.13), transparent 42%);
  pointer-events: none;
}

.reasons .container {
  position: relative;
  z-index: 1;
}

.reasons .section-head h2 {
  color: #ffffff;
}

.reasons .section-head p {
  color: #c7d8f6;
}

.reasons .eyebrow {
  color: #ffd560;
}

.reason-grid {
  display: grid;
  gap: 1rem;
}

.feature-box {
  padding: 1rem;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.08);
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}

.feature-box:hover {
  transform: translateY(-5px);
  border-color: rgba(255, 255, 255, 0.38);
  background: rgba(255, 255, 255, 0.13);
}

.feature-box h3 {
  margin: 0 0 0.4rem;
  font-size: 1.02rem;
  color: #ffffff;
}

.feature-box p {
  margin: 0;
  color: #dae6ff;
}

.situation-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.situation-list li {
  position: relative;
  padding: 0.9rem 1rem 0.9rem 2.65rem;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: #ffffff;
  box-shadow: 0 4px 10px rgba(15, 23, 42, 0.05);
}

.situation-list li::before {
  content: "!";
  position: absolute;
  left: 0.95rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1.3rem;
  height: 1.3rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.82rem;
  font-weight: 800;
  color: #ffffff;
  background: var(--red);
}

.process {
  background: #ffffff;
}

.process-grid {
  display: grid;
  gap: 1rem;
}

.step-card {
  padding: 1.1rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, #ffffff, #f8faff);
  transition: transform 0.24s ease, box-shadow 0.24s ease, border-color 0.24s ease;
}

.step-card:hover {
  transform: translateY(-4px);
  border-color: rgba(16, 57, 109, 0.35);
  box-shadow: 0 10px 24px rgba(18, 59, 115, 0.14);
}

.step-number {
  width: 2rem;
  height: 2rem;
  margin-bottom: 0.62rem;
  border-radius: 50%;
  display: inline-grid;
  place-items: center;
  color: #ffffff;
  font-weight: 800;
  background: linear-gradient(135deg, var(--red), #ff5b3d);
}

.step-card h3 {
  margin: 0 0 0.4rem;
  font-size: 1rem;
}

.step-card p {
  margin: 0;
  color: var(--text-muted);
}

.areas {
  background: #f0f4fb;
}

.area-grid {
  display: grid;
  gap: 0.75rem;
}

.area-item {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #ffffff;
  padding: 0.83rem 1rem;
  font-weight: 600;
  color: #1f2937;
  box-shadow: 0 3px 10px rgba(15, 23, 42, 0.05);
}

.testimonial-card {
  padding: 1.2rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: #ffffff;
  transition: transform 0.24s ease, box-shadow 0.24s ease;
}

.testimonial-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
}

.stars {
  margin-bottom: 0.56rem;
  color: #f5b301;
  letter-spacing: 0.12em;
  font-size: 1.05rem;
}

.testimonial-card p {
  margin: 0 0 0.75rem;
  color: #374151;
}

.testimonial-card h3 {
  margin: 0;
  font-size: 0.98rem;
  color: #0f172a;
}

.final-cta {
  position: relative;
  overflow: hidden;
  color: #ffffff;
  background: linear-gradient(140deg, #0b1528, #122c52 62%, #12224a);
}

.final-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 15% 20%, rgba(247, 201, 72, 0.18), transparent 40%),
    radial-gradient(circle at 85% 82%, rgba(225, 29, 46, 0.17), transparent 44%);
}

.final-cta-inner {
  position: relative;
  z-index: 1;
  text-align: center;
}

.final-cta h2 {
  margin: 0 0 0.65rem;
  font-family: "Oswald", sans-serif;
  font-size: clamp(1.65rem, 5vw, 2.85rem);
  line-height: 1.2;
}

.final-cta p {
  margin: 0 auto;
  max-width: 760px;
  color: #d7e2fb;
}

.phone-highlight {
  margin-top: 1rem;
  font-size: clamp(1.65rem, 7vw, 2.5rem);
  font-weight: 800;
  color: #ffd665;
}

.phone-highlight a {
  color: inherit;
}

.cta-actions {
  justify-content: center;
  margin-top: 1.1rem;
}

.site-footer {
  background: #060d1b;
  color: #d4dfef;
  padding: 2.2rem 0 1.1rem;
}

.footer-grid {
  display: grid;
  gap: 1.2rem;
}

.site-footer h2,
.site-footer h3 {
  margin: 0 0 0.45rem;
  color: #ffffff;
}

.site-footer h2 {
  font-size: 1.1rem;
}

.site-footer h3 {
  font-size: 1rem;
}

.site-footer p {
  margin: 0 0 0.4rem;
}

.site-footer a {
  color: #ffd663;
  font-weight: 700;
}

.footer-bottom {
  margin-top: 0.6rem;
  padding-top: 0.8rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-bottom p {
  margin: 0;
  font-size: 0.9rem;
  color: #a8b8d4;
}

.floating-contact {
  position: fixed;
  right: 12px;
  bottom: 14px;
  z-index: 1300;
  display: grid;
  gap: 0.55rem;
}

.float-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  min-width: 114px;
  padding: 0.7rem 0.95rem;
  border-radius: 999px;
  color: #ffffff;
  font-size: 0.9rem;
  font-weight: 700;
  box-shadow: 0 10px 22px rgba(15, 23, 42, 0.35);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.float-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 24px rgba(15, 23, 42, 0.45);
}

.float-call {
  background: linear-gradient(135deg, var(--red), #ff623f);
}

.float-zalo {
  background: linear-gradient(135deg, #0068ff, #00a7ff);
}

.hero-content,
.hero-media,
.card,
.feature-box,
.situation-list li,
.step-card,
.area-item,
.testimonial-card {
  animation: fadeUp 0.7s ease both;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 640px) {
  .service-grid,
  .reason-grid,
  .process-grid,
  .area-grid,
  .testimonial-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .header-main {
    padding: 0.85rem 0;
  }

  .main-nav ul {
    justify-content: center;
    overflow: visible;
    padding: 0.62rem 0 0.82rem;
  }

  .hero {
    padding: 4.3rem 0;
  }

  .hero-grid {
    grid-template-columns: 1.08fr 0.92fr;
    gap: 2rem;
  }

  .section {
    padding: 4.5rem 0;
  }

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

  .reason-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .process-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .area-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .footer-grid {
    grid-template-columns: 1.2fr 0.85fr 0.95fr;
  }

  .floating-contact {
    right: 18px;
    bottom: 18px;
  }
}

@media (min-width: 1200px) {
  .hero h1 {
    font-size: 3.35rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}