/* ==========================================================================
   H & H Info Tech Inc. — handhinfo.com
   Corporate blue theme · static single-page site
   ========================================================================== */

:root {
  --navy: #0d2847;
  --navy-2: #0f3563;
  --blue: #1e5aa8;
  --blue-bright: #2b7de9;
  --teal: #17b3a3;
  --ink: #17222f;
  --muted: #5a6b7d;
  --line: #e3e9f0;
  --bg: #ffffff;
  --bg-soft: #f4f7fb;
  --bg-tint: #eef4fc;
  --white: #ffffff;
  --shadow: 0 10px 30px rgba(13, 40, 71, .10);
  --shadow-sm: 0 4px 14px rgba(13, 40, 71, .08);
  --radius: 14px;
  --maxw: 1140px;
  --font: "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-bright); }

h1, h2, h3 { line-height: 1.2; color: var(--navy); margin: 0 0 .4em; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
p { margin: 0 0 1rem; }

.container { width: min(var(--maxw), 92%); margin: 0 auto; }

.section { padding: 84px 0; }
.section--soft { background: var(--bg-soft); }

.eyebrow {
  display: inline-block;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 10px;
}

.section-head { max-width: 720px; margin: 0 auto 52px; text-align: center; }
.section-head p { color: var(--muted); font-size: 1.05rem; }

/* Buttons ---------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 10px;
  font-weight: 600;
  font-size: .98rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn--primary { background: var(--blue); color: #fff; box-shadow: var(--shadow-sm); }
.btn--primary:hover { background: var(--blue-bright); color: #fff; }
.btn--ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.5); }
.btn--ghost:hover { background: rgba(255,255,255,.12); color: #fff; }
.btn--dark { background: var(--navy); color: #fff; }
.btn--dark:hover { background: var(--navy-2); color: #fff; }

/* Header ----------------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.nav__logo img { height: 42px; }
.nav__links { display: flex; align-items: center; gap: 28px; list-style: none; margin: 0; padding: 0; }
.nav__links a { color: var(--navy); font-weight: 600; font-size: .95rem; }
.nav__links a:hover { color: var(--blue); }
.nav__cta { margin-left: 8px; }
.nav__toggle {
  display: none; background: none; border: 0; cursor: pointer;
  width: 42px; height: 42px; padding: 8px;
}
.nav__toggle span { display: block; height: 2.5px; background: var(--navy); border-radius: 2px; margin: 5px 0; transition: .25s; }

/* Hero ------------------------------------------------------------------- */
.hero {
  position: relative;
  color: #fff;
  background:
    radial-gradient(1000px 500px at 80% -10%, rgba(43,125,233,.35), transparent 60%),
    radial-gradient(700px 400px at 0% 110%, rgba(23,179,163,.25), transparent 55%),
    linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 55%, #12468a 100%);
  overflow: hidden;
}
.hero__grid {
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px;
  align-items: center; padding: 96px 0 104px;
}
.hero h1 { color: #fff; font-size: clamp(2.1rem, 4.6vw, 3.3rem); margin-bottom: 18px; }
.hero h1 span { color: #7fb2f0; }
.hero__lead { font-size: 1.15rem; color: #d7e3f4; max-width: 560px; margin-bottom: 30px; }
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero__meta { margin-top: 34px; display: flex; gap: 28px; flex-wrap: wrap; color: #cdddf1; font-size: .9rem; }
.hero__meta strong { display: block; color: #fff; font-size: 1.4rem; }

.hero__card {
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 18px;
  padding: 26px;
  backdrop-filter: blur(6px);
  box-shadow: var(--shadow);
}
.hero__card h3 { color: #fff; font-size: 1.05rem; margin-bottom: 16px; }
.hero__card ul { list-style: none; margin: 0; padding: 0; }
.hero__card li { display: flex; gap: 12px; align-items: flex-start; padding: 9px 0; color: #e6eefb; font-size: .96rem; border-bottom: 1px solid rgba(255,255,255,.08); }
.hero__card li:last-child { border-bottom: 0; }
.hero__card .dot { flex: 0 0 auto; width: 9px; height: 9px; border-radius: 50%; background: var(--teal); margin-top: 8px; }

/* Trust bar -------------------------------------------------------------- */
.trust { background: var(--bg-tint); border-bottom: 1px solid var(--line); }
.trust__row { display: flex; flex-wrap: wrap; gap: 18px 40px; justify-content: center; padding: 22px 0; color: var(--navy); font-weight: 600; font-size: .92rem; }
.trust__row span { display: inline-flex; align-items: center; gap: 8px; }
.trust__row svg { color: var(--blue); }

/* Services grid ---------------------------------------------------------- */
.grid { display: grid; gap: 22px; }
.grid--services { grid-template-columns: repeat(3, 1fr); }

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: #cfe0f5; }
.card__icon {
  width: 52px; height: 52px; border-radius: 12px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--blue), var(--navy));
  color: #fff; margin-bottom: 16px;
}
.card__icon svg { width: 26px; height: 26px; }
.card h3 { font-size: 1.12rem; }
.card p { color: var(--muted); font-size: .96rem; margin: 0; }

/* About ------------------------------------------------------------------ */
.about__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.about__stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-top: 26px; }
.stat { background: var(--bg-soft); border: 1px solid var(--line); border-radius: 12px; padding: 20px; }
.stat strong { display: block; font-size: 1.8rem; color: var(--blue); }
.stat span { color: var(--muted); font-size: .9rem; }
.about__list { list-style: none; padding: 0; margin: 0; }
.about__list li { display: flex; gap: 12px; padding: 11px 0; border-bottom: 1px solid var(--line); color: var(--ink); }
.about__list li:last-child { border: 0; }
.about__list .chk { color: var(--teal); flex: 0 0 auto; }

/* Contact ---------------------------------------------------------------- */
.contact__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.contact__panel {
  background: linear-gradient(135deg, var(--navy), var(--navy-2));
  color: #fff; border-radius: 18px; padding: 40px;
}
.contact__panel h2 { color: #fff; }
.contact__panel p { color: #cdddf1; }
.contact__list { list-style: none; padding: 0; margin: 24px 0 0; }
.contact__list li { display: flex; gap: 16px; align-items: flex-start; padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,.12); }
.contact__list li:last-child { border: 0; }
.contact__list .ci {
  width: 42px; height: 42px; border-radius: 10px; flex: 0 0 auto;
  display: grid; place-items: center; background: rgba(255,255,255,.12); color: #7fb2f0;
}
.contact__list a { color: #fff; font-weight: 600; }
.contact__list small { color: #9fb8d6; display: block; font-weight: 400; }

.contact__cta {
  border: 1px solid var(--line); border-radius: 18px; padding: 40px;
  background: #fff; display: flex; flex-direction: column; justify-content: center;
}
.contact__cta h3 { font-size: 1.4rem; }
.contact__cta p { color: var(--muted); }
.contact__cta .btn { align-self: flex-start; margin-top: 8px; }

/* Footer ----------------------------------------------------------------- */
.site-footer { background: var(--navy); color: #b9cbe3; padding: 54px 0 26px; }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; }
.footer__grid h4 { color: #fff; font-size: 1rem; margin: 0 0 14px; }
.footer__grid ul { list-style: none; padding: 0; margin: 0; }
.footer__grid li { padding: 5px 0; }
.footer__grid a { color: #b9cbe3; }
.footer__grid a:hover { color: #fff; }
.footer__brand img { height: 40px; margin-bottom: 14px; filter: brightness(0) invert(1); }
.footer__brand p { font-size: .92rem; max-width: 320px; }
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.12); margin-top: 40px; padding-top: 20px;
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  font-size: .85rem; color: #8ea6c6;
}
.footer__gst { color: #b9cbe3; }

/* Responsive ------------------------------------------------------------- */
@media (max-width: 900px) {
  .hero__grid, .about__grid, .contact__grid { grid-template-columns: 1fr; }
  .grid--services { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .hero__grid { padding: 64px 0 72px; }
}
@media (max-width: 640px) {
  .section { padding: 60px 0; }
  .nav__links {
    position: absolute; top: 72px; left: 0; right: 0;
    flex-direction: column; gap: 0; align-items: stretch;
    background: #fff; border-bottom: 1px solid var(--line);
    padding: 8px 0; box-shadow: var(--shadow); display: none;
  }
  .nav__links.is-open { display: flex; }
  .nav__links li { padding: 6px 24px; }
  .nav__cta { margin: 8px 24px 12px; }
  .nav__toggle { display: block; }
  .grid--services, .footer__grid { grid-template-columns: 1fr; }
  .about__stats { grid-template-columns: 1fr 1fr; }
}