/* ============================================================
   SUNRAV IT Consulting — design tokens
   ============================================================ */
:root {
  /* Color */
  --navy: #0F172A;
  --teal-dark: #134E4A;
  --teal: #2DD4BF;
  --bg: #F8FAFC;
  --slate: #64748B;
  --border: #E2E8F0;
  --white: #FFFFFF;

  /* Type */
  --font-display: 'Space Grotesk', -apple-system, sans-serif;
  --font-body: 'Inter', -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', 'SF Mono', monospace;

  --max-width: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--navy);
  background: var(--bg);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0;
  letter-spacing: -0.01em;
}

p { margin: 0; }

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

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

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 28px;
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ---------- Header ---------- */
header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(248, 250, 252, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 28px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.nav-logo img { height: 32px; }

.nav-links {
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav-links a {
  font-size: 0.95rem;
  color: var(--navy);
  font-weight: 500;
  position: relative;
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -20px;
  height: 2px;
  background: var(--teal);
}

.nav-cta {
  background: var(--navy);
  color: var(--white);
  padding: 10px 20px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: background 0.15s ease;
}
.nav-cta:hover { background: var(--teal-dark); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle svg { width: 26px; height: 26px; }

@media (max-width: 820px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .nav-links.open {
    display: flex;
    position: absolute;
    top: 64px;
    left: 0; right: 0;
    background: var(--bg);
    flex-direction: column;
    padding: 20px 28px 28px;
    border-bottom: 1px solid var(--border);
    gap: 18px;
  }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn-primary {
  background: var(--navy);
  color: var(--white);
}
.btn-primary:hover { background: var(--teal-dark); transform: translateY(-1px); }

.btn-secondary {
  background: transparent;
  color: var(--navy);
  border-color: var(--border);
}
.btn-secondary:hover { border-color: var(--navy); }

.btn-accent {
  background: var(--teal);
  color: var(--navy);
}
.btn-accent:hover { transform: translateY(-1px); }

/* ---------- Sections ---------- */
section { padding: 96px 0; }
@media (max-width: 700px) { section { padding: 64px 0; } }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal-dark);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}
.eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--teal);
  display: inline-block;
}

.section-head {
  max-width: 640px;
  margin-bottom: 56px;
}
.section-head h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  margin-bottom: 14px;
}
.section-head p {
  color: var(--slate);
  font-size: 1.05rem;
}

/* ---------- Footer ---------- */
footer {
  background: var(--navy);
  color: #CBD5E1;
  padding: 64px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
@media (max-width: 700px) {
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}
footer .nav-logo img { height: 28px; filter: brightness(0) invert(1); }
footer h4 {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #94A3B8;
  margin-bottom: 16px;
}
footer ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
footer a:hover { color: var(--teal); }
.footer-bottom {
  border-top: 1px solid #1E293B;
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: #64748B;
}
@media (max-width: 600px) { .footer-bottom { flex-direction: column; gap: 8px; } }

/* ---------- Utility ---------- */
.center { text-align: center; margin: 0 auto; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }

:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}