:root {
  --bg: #f7fafc;
  --surface: #ffffff;
  --ink: #111827;
  --muted: #5b6472;
  --primary: #0f766e;
  --accent: #f59e0b;
  --line: #e5e7eb;
  --dark: #0f172a;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
}
a { color: inherit; }
.navbar {
  background: rgba(15, 23, 42, 0.96);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.18);
  padding: 0.85rem 0;
}
.navbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #ffffff !important;
  font-size: 1.12rem;
  font-weight: 700;
}
.brand-logo {
  width: 42px;
  height: 42px;
  border-radius: 8px;
  object-fit: cover;
}
.navbar-nav .nav-link {
  color: rgba(255, 255, 255, 0.86) !important;
  font-weight: 600;
  padding-left: 0.9rem !important;
  padding-right: 0.9rem !important;
}
.navbar-nav .nav-link:hover,
.navbar-nav .active .nav-link { color: #ffffff !important; }
.navbar-toggler { border-color: rgba(255, 255, 255, 0.35); }
.navbar-toggler-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  width: 1.6em;
  height: 1.6em;
}
.hero {
  padding: 150px 0 92px;
  color: #ffffff;
  background:
    linear-gradient(110deg, rgba(15, 23, 42, 0.96) 0%, rgba(15, 23, 42, 0.84) 48%, rgba(15, 118, 110, 0.72) 100%),
    url('jpg/server-room.jpg') center / cover no-repeat;
}
.hero-content { max-width: 850px; }
.eyebrow {
  display: inline-flex;
  margin-bottom: 18px;
  padding: 7px 12px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.92rem;
  font-weight: 700;
}
.hero h1 {
  max-width: 830px;
  margin: 0 0 22px;
  font-size: clamp(2.35rem, 5vw, 4.35rem);
  line-height: 1.06;
  font-weight: 800;
}
.hero p {
  max-width: 760px;
  margin: 0 0 30px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.2rem;
}
.btn-main,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  border-radius: 8px;
  padding: 13px 22px;
  font-weight: 800;
  text-decoration: none;
}
.btn-main {
  background: var(--accent);
  color: #111827;
  box-shadow: 0 14px 28px rgba(245, 158, 11, 0.28);
}
.btn-main:hover {
  color: #111827;
  text-decoration: none;
}
.btn-ghost {
  border: 1px solid rgba(255, 255, 255, 0.36);
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
}
.btn-ghost:hover {
  color: #ffffff;
  text-decoration: none;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.section { padding: 86px 0; }
.section-white { background: var(--surface); }
.section-title {
  max-width: 820px;
  margin: 0 auto 42px;
  text-align: center;
}
.section-title h2 {
  margin: 0 0 14px;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
}
.section-title p {
  margin: 0;
  color: var(--muted);
  font-size: 1.08rem;
}
.card-box {
  height: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 28px;
  background: #ffffff;
  box-shadow: 0 18px 38px rgba(15, 23, 42, 0.07);
}
.card-box h3 {
  margin: 0 0 12px;
  font-size: 1.2rem;
  font-weight: 800;
}
.card-box p {
  margin: 0;
  color: var(--muted);
}
.icon-box {
  display: inline-flex;
  width: 48px;
  height: 48px;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  border-radius: 8px;
  background: rgba(15, 118, 110, 0.1);
  color: var(--primary);
}
.check-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.check-list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  color: var(--ink);
  font-weight: 700;
}
.check-list i {
  flex: 0 0 auto;
  margin-top: 4px;
  color: var(--primary);
}
.cta-band {
  background: var(--dark);
  color: #ffffff;
  padding: 76px 0;
}
.cta-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  gap: 34px;
  align-items: center;
}
.cta-inner h2 {
  margin: 0 0 14px;
  font-size: clamp(2rem, 4vw, 3.1rem);
  font-weight: 800;
}
.cta-inner p {
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 1.08rem;
}
.contact-card {
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  padding: 26px;
  background: rgba(255, 255, 255, 0.06);
  color: #ffffff;
}
.contact-card a { color: rgba(255, 255, 255, 0.86); }
.contact-card a:hover { color: #ffffff; }
.footer {
  background: #0b1120;
  color: rgba(255, 255, 255, 0.76);
  padding: 28px 0;
  font-size: 0.95rem;
}
.footer a {
  color: #ffffff;
  text-decoration: none;
}
.footer-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
@media (max-width: 991px) {
  .check-list,
  .cta-inner { grid-template-columns: 1fr; }
}
@media (max-width: 767px) {
  .hero { padding: 128px 0 72px; }
}
@media (max-width: 575px) {
  .hero h1 { font-size: 2.25rem; }
  .section { padding: 62px 0; }
  .hero-actions a,
  .btn-main { width: 100%; }
}