/* ==========================================================================
   Cloudifinity landing page
   Palette taken from the brand logo: blue-grey #90adbb, off-white #f6f6f6
   ========================================================================== */

:root {
  --blue-grey: #90adbb;
  --blue-grey-deep: #6f93a4;
  --hero-dark-1: #1f2a30;
  --hero-dark-2: #34474f;
  --hero-dark-3: #45616d;
  --ink: #1c272c;
  --ink-soft: #4a5a62;
  --off-white: #f6f6f6;
  --white: #ffffff;
  --line: #e3e8ea;
  --tint: #f0f3f5;

  --maxw: 1120px;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(28, 39, 44, 0.08);
  --shadow-hover: 0 16px 40px rgba(28, 39, 44, 0.14);

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 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(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 { line-height: 1.15; margin: 0; letter-spacing: -0.02em; }
p { margin: 0 0 1rem; }
a { color: inherit; }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Accessible focus states */
a:focus-visible,
button:focus-visible,
.btn:focus-visible {
  outline: 3px solid var(--blue-grey);
  outline-offset: 3px;
  border-radius: 6px;
}

/* --------------------------------------------------------------------------
   Header / nav
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(31, 42, 48, 0.92);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.nav__brand { display: inline-flex; align-items: center; }
.nav__logo { height: 26px; width: auto; display: block; }

.nav__menu {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 2rem;
  margin: 0;
  padding: 0;
}

.nav__menu a {
  text-decoration: none;
  color: rgba(246, 246, 246, 0.82);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.15s ease;
}
.nav__menu a:hover { color: var(--white); }

.nav__cta {
  border: 1px solid rgba(246, 246, 246, 0.35);
  padding: 0.45rem 1rem;
  border-radius: 999px;
}
.nav__cta:hover {
  background: var(--white);
  color: var(--ink) !important;
  border-color: var(--white);
}

.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 0;
}
.nav__toggle span {
  display: block;
  height: 2px;
  width: 22px;
  margin: 0 auto;
  background: var(--off-white);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  color: var(--off-white);
  background:
    radial-gradient(1100px 520px at 78% -10%, rgba(144, 173, 187, 0.35), transparent 60%),
    linear-gradient(160deg, var(--hero-dark-1) 0%, var(--hero-dark-2) 55%, var(--hero-dark-3) 100%);
  overflow: hidden;
}
.hero::after {
  /* subtle infinity watermark feel via faint grid lines */
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px) 0 0 / 100% 56px,
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px) 0 0 / 56px 100%;
  -webkit-mask-image: radial-gradient(70% 70% at 50% 30%, #000 0%, transparent 75%);
  mask-image: radial-gradient(70% 70% at 50% 30%, #000 0%, transparent 75%);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 1;
  padding: 5.5rem 1.5rem 6rem;
  max-width: 880px;
}

.hero__eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.32em;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--blue-grey);
  margin: 0 0 1.1rem;
}

.hero__title {
  font-size: clamp(2.2rem, 6vw, 4rem);
  font-weight: 800;
  margin-bottom: 1.3rem;
}

.hero__subtitle {
  font-size: clamp(1.05rem, 2.2vw, 1.3rem);
  color: rgba(246, 246, 246, 0.82);
  max-width: 640px;
  margin-bottom: 2.2rem;
}

.hero__actions { display: flex; flex-wrap: wrap; gap: 0.9rem; }

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  padding: 0.85rem 1.6rem;
  border-radius: 999px;
  transition: transform 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
  cursor: pointer;
}
.btn--primary {
  background: var(--white);
  color: var(--ink);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.18);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(0,0,0,0.24); }
.btn--ghost {
  background: transparent;
  color: var(--off-white);
  border: 1px solid rgba(246, 246, 246, 0.4);
}
.btn--ghost:hover { background: rgba(246, 246, 246, 0.1); transform: translateY(-2px); }
.btn--lg { padding: 1rem 2rem; font-size: 1.1rem; }

/* contact section button is on light bg, give it brand colour */
.section--contact .btn--primary {
  background: var(--ink);
  color: var(--off-white);
}
.section--contact .btn--primary:hover { background: var(--hero-dark-2); }

/* --------------------------------------------------------------------------
   Sections
   -------------------------------------------------------------------------- */
.section { padding: 5rem 0; }
.section--tint { background: var(--tint); }

.section__narrow { max-width: 760px; }
.section__narrow--center { margin-inline: auto; text-align: center; }

.section__title {
  font-size: clamp(1.7rem, 3.6vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 1.4rem;
}
.section__title--center { text-align: center; }

.section__lead {
  font-size: 1.15rem;
  color: var(--ink-soft);
  max-width: 640px;
  margin: 0 auto 2.8rem;
  text-align: center;
}

.section p { color: var(--ink-soft); font-size: 1.06rem; }
.section__narrow p { color: var(--ink-soft); }

/* --------------------------------------------------------------------------
   Service cards
   -------------------------------------------------------------------------- */
.cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
.cards--three { grid-template-columns: repeat(3, 1fr); }

/* Featured lead card: cloud is the core specialism */
.card--feature {
  margin-bottom: 1.5rem;
  padding: 2.4rem 2.2rem;
  border-top: 4px solid var(--blue-grey-deep);
}
.card--feature .card__title { font-size: 1.5rem; }
.card--feature .card__body { font-size: 1.08rem; max-width: 62ch; }

.card__tag {
  display: inline-block;
  margin: 0 0 0.4rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue-grey-deep);
}

.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2rem 1.8rem;
  box-shadow: var(--shadow);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--blue-grey);
}

.card__icon {
  width: 52px;
  height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: rgba(144, 173, 187, 0.16);
  color: var(--blue-grey-deep);
  margin-bottom: 1.2rem;
}
.card__icon svg { width: 28px; height: 28px; }

.card__title { font-size: 1.2rem; font-weight: 600; margin-bottom: 0.6rem; }
.card__body { color: var(--ink-soft); font-size: 1rem; margin: 0; }

/* --------------------------------------------------------------------------
   Contact
   -------------------------------------------------------------------------- */
.section--contact { background: var(--off-white); border-top: 1px solid var(--line); }
.section--contact .section__lead { margin-bottom: 2rem; }

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
  background: var(--hero-dark-1);
  color: rgba(246, 246, 246, 0.72);
  padding: 2.5rem 0;
}
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.footer__logo { height: 24px; width: auto; opacity: 0.9; }
.footer__meta { margin: 0; font-size: 0.92rem; }

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 760px) {
  .nav__toggle { display: flex; }

  .nav__menu {
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--hero-dark-1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: 0.5rem 1.5rem 1rem;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.18s ease, transform 0.18s ease;
  }
  .nav__menu.is-open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav__menu li { padding: 0.35rem 0; }
  .nav__menu a { display: block; padding: 0.5rem 0; }
  .nav__cta { display: inline-block; text-align: center; margin-top: 0.4rem; }

  .cards,
  .cards--three { grid-template-columns: 1fr; }

  .hero__inner { padding: 4rem 1.5rem 4.5rem; }
  .section { padding: 3.5rem 0; }

  .footer__inner { flex-direction: column; text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}