/* ---------- Design tokens ---------- */
:root {
  --ink: #18222f;        /* body text */
  --ink-soft: #4a5666;   /* secondary text */
  --blue: #1f55c4;       /* links and buttons */
  --blue-dark: #163f94;
  --mist: #eef3f9;       /* alternate section background */
  --line: #d7dfea;
  --white: #ffffff;
  --radius: 10px;
  --max: 1120px;
  font-family: 'Plus Jakarta Sans', 'Segoe UI', system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: var(--white);
}

*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; line-height: 1.65; font-size: 1.0625rem; }
img { max-width: 100%; display: block; }
a { color: var(--blue); }
h1, h2, h3 { line-height: 1.15; margin: 0 0 0.6em; letter-spacing: -0.015em; }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); font-weight: 800; }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); font-weight: 800; }
h3 { font-size: 1.5rem; font-weight: 700; }
p { margin: 0 0 1.1em; max-width: 68ch; }

.container { width: min(100% - 2.5rem, var(--max)); margin-inline: auto; }

:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; }

.skip-link {
  position: absolute; left: 1rem; top: -4rem; z-index: 100;
  background: var(--ink); color: var(--white); padding: 0.6rem 1rem; border-radius: var(--radius);
}
.skip-link:focus { top: 1rem; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block; padding: 0.8rem 1.5rem; border-radius: 999px; border: 0;
  background: var(--blue); color: var(--white); font: inherit; font-weight: 700;
  text-decoration: none; cursor: pointer; transition: background 0.15s;
}
.btn:hover { background: var(--blue-dark); }
.btn-light { background: var(--white); color: var(--ink); }
.btn-light:hover { background: var(--mist); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.96); border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 80px; gap: 1rem; }
.logo img { height: 56px; width: auto; }
.site-nav { display: flex; align-items: center; gap: 1.75rem; }
.site-nav a { color: var(--ink); text-decoration: none; font-weight: 500; padding: 0.3rem 0; }
.site-nav a[aria-current="page"] { font-weight: 700; box-shadow: inset 0 -2px 0 var(--blue); }
.site-nav .nav-cta { background: var(--blue); color: var(--white); padding: 0.55rem 1.2rem; border-radius: 999px; }
.site-nav .nav-cta[aria-current="page"] { box-shadow: none; background: var(--blue-dark); }
.nav-toggle {
  display: none; font: inherit; font-weight: 700; background: none;
  border: 1px solid var(--line); border-radius: var(--radius); padding: 0.45rem 0.9rem; cursor: pointer;
}

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(90deg, rgba(12, 22, 40, 0.88) 0%, rgba(12, 22, 40, 0.55) 60%, rgba(12, 22, 40, 0.25) 100%),
              var(--hero-img) center / cover no-repeat;
  color: var(--white);
  padding: clamp(5rem, 14vw, 9rem) 0;
}
.hero-content { max-width: var(--max); }
.hero h1 { max-width: 14ch; }
.hero p { font-size: 1.15rem; max-width: 58ch; color: #e3e9f2; }

/* ---------- What we do ---------- */
.intro { padding: 5rem 0 2rem; }
.intro p { color: var(--ink-soft); font-size: 1.15rem; }

/* ---------- Services (alternating image/text rows) ---------- */
.services { display: grid; gap: 4.5rem; padding: 2rem 0 6rem; }
.service { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; scroll-margin-top: 100px; }
.service img { border-radius: var(--radius); aspect-ratio: 3 / 2; object-fit: cover; width: 100%; }
.service:nth-child(even) img { order: 2; }
.service-text p { color: var(--ink-soft); }
.service-text strong { color: var(--ink); }
.badge {
  display: inline-block; vertical-align: middle; margin-left: 0.4rem;
  font-size: 0.8rem; font-weight: 700; background: var(--mist); color: var(--blue-dark);
  padding: 0.2rem 0.65rem; border-radius: 999px; border: 1px solid var(--line);
}

/* ---------- Contact band ---------- */
.contact-band {
  background: linear-gradient(rgba(12, 22, 40, 0.78), rgba(12, 22, 40, 0.78)),
              var(--band-img) center / cover no-repeat;
  color: var(--white); padding: 5rem 0; text-align: center;
}
.contact-band-inner p { margin-inline: auto; font-size: 1.25rem; }
.contact-band a:not(.btn) { color: var(--white); text-decoration-thickness: 1px; text-underline-offset: 4px; }
.contact-band .btn { margin-top: 1rem; }

/* ---------- About page ---------- */
.about { display: grid; grid-template-columns: 1fr 1.2fr; gap: 3.5rem; align-items: center; padding: 5rem 0 6rem; }
.about-img { border-radius: var(--radius); width: 100%; }
.about-text p { color: var(--ink-soft); }

/* ---------- Contact page ---------- */
.contact-page { display: grid; grid-template-columns: 1fr 1.3fr; gap: 3.5rem; padding: 5rem 0 6rem; align-items: start; }
.contact-info p { color: var(--ink-soft); }
.contact-line { font-size: 1.2rem; font-weight: 700; margin-bottom: 0.4em; }
.contact-form { display: grid; gap: 0.35rem; background: var(--mist); padding: 2rem; border-radius: var(--radius); }
.contact-form label { font-weight: 700; margin-top: 0.75rem; }
.contact-form label:first-child { margin-top: 0; }
.optional { font-weight: 400; color: var(--ink-soft); }
.contact-form input, .contact-form select, .contact-form textarea {
  font: inherit; padding: 0.7rem 0.85rem; border: 1px solid var(--line); border-radius: 8px;
  background: var(--white); color: var(--ink); width: 100%;
}
.contact-form textarea { resize: vertical; }
.contact-form .btn { margin-top: 1.25rem; justify-self: start; }
.contact-form .btn:disabled { opacity: 0.6; cursor: wait; }
.form-status { margin: 0.75rem 0 0; font-weight: 500; min-height: 1.5em; }
.form-status.success { color: #1b7a3d; }
.form-status.error { color: #b42318; }

/* ---------- 404 ---------- */
.not-found { padding: 7rem 0; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 2rem 0; color: var(--ink-soft); font-size: 0.95rem; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; }
.footer-inner p { margin: 0; }
.footer-inner nav { display: flex; gap: 1.5rem; }
.footer-inner a { color: var(--ink-soft); text-decoration: none; }
.footer-inner a:hover { color: var(--blue); }

/* ---------- Mobile ---------- */
@media (max-width: 820px) {
  .nav-toggle { display: block; }
  .site-nav {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--white); border-bottom: 1px solid var(--line); padding: 0.5rem 1.25rem 1.25rem;
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 0.85rem 0; border-bottom: 1px solid var(--line); }
  .site-nav a[aria-current="page"] { box-shadow: none; color: var(--blue); }
  .site-nav .nav-cta { margin-top: 1rem; text-align: center; border-bottom: 0; }
  .logo img { height: 44px; }

  .service, .about, .contact-page { grid-template-columns: 1fr; gap: 1.5rem; }
  .service:nth-child(even) img { order: 0; }
  .services { gap: 3.5rem; }
}

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