/*
  Rajastars Company Profile - base.css
  Version: 1.3.0 (2026-10-10)
  Features: Design tokens (brand colors from the Rajastars logo), typography,
  layout helpers, buttons, sticky header with mobile menu, and footer.
  Changelog: 1.3.0 section spacing reduced again (72px -> 48px desktop,
  56px -> 40px mobile; heading gap 40px -> 32px).
  1.2.0 tighter section spacing (104px -> 72px desktop,
  72px -> 56px mobile; section heading gap 52px -> 40px).
  1.1.0 UI/UX review fixes: img height auto, darker WhatsApp green
  (contrast 4.5:1+), skip link, 44px footer/nav tap areas.
*/
:root {
  --navy: #0A1C33;
  --navy-2: #0F2A4A;
  --blue: #1B75BC;
  --blue-dark: #145C95;
  --cyan: #00AEEF;
  --bg: #F5F8FB;
  --surface: #FFFFFF;
  --ink: #0F2238;
  --muted: #536679;
  --line: #DFE6EE;
  --on-navy: #E6EEF7;
  --on-navy-muted: #A9BBCE;
  --wa: #0F7A40;
  --radius: 16px;
  --shadow: 0 18px 50px -24px rgba(10, 28, 51, .35);
  --header-h: 72px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 17px/1.7 "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 { margin: 0; line-height: 1.15; letter-spacing: -.02em; font-weight: 700; }
p { margin: 0; }
a { color: inherit; }
img { max-width: 100%; height: auto; display: block; }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 3px; }

/* Skip link: hidden until focused by keyboard */
.skip {
  position: absolute; left: 16px; top: -60px; z-index: 50; padding: 12px 18px; border-radius: 10px;
  background: var(--surface); color: var(--ink); font-weight: 600; text-decoration: none;
}
.skip:focus { top: 12px; }

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
.section { padding: 48px 0; }
.section.alt { background: var(--surface); border-block: 1px solid var(--line); }
.section.navy { background: var(--navy); color: var(--on-navy); }
.section.navy .lead { color: var(--on-navy-muted); }

h2 { font-size: clamp(30px, 3.6vw, 44px); margin-bottom: 18px; }
.kicker {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 13px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: var(--blue); margin-bottom: 14px;
}
.kicker::before { content: ""; width: 28px; height: 2px; background: var(--cyan); }
.section.navy .kicker, .contact .kicker { color: var(--cyan); }
.lead { color: var(--muted); max-width: 64ch; }
.lead + .lead { margin-top: 14px; }
.sec-head { margin-bottom: 32px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: inherit; font-weight: 600; font-size: 16px; line-height: 1;
  padding: 16px 24px; border-radius: 12px; border: 0; cursor: pointer;
  background: var(--blue); color: #fff; text-decoration: none;
  transition: background .2s, transform .2s, box-shadow .2s;
}
.btn:hover { background: var(--blue-dark); transform: translateY(-1px); }
.btn-sm { min-height: 44px; padding: 12px 18px; font-size: 15px; }
.btn-light { background: #fff; color: var(--navy); }
.btn-light:hover { background: #E8F6FD; }
.btn-outline { background: transparent; color: #fff; box-shadow: inset 0 0 0 1.5px rgba(255, 255, 255, .4); }
.btn-outline:hover { background: rgba(255, 255, 255, .08); }
.btn-ghost { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1.5px var(--line); }
.btn-ghost:hover { background: var(--bg); }
.btn-wa { background: var(--wa); }
.btn-wa:hover { background: #0B6534; }

/* Header: transparent over the hero, solid after scrolling */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 30; height: var(--header-h);
  transition: background .25s, box-shadow .25s;
}
.site-header.solid { background: rgba(255, 255, 255, .96); backdrop-filter: blur(10px); box-shadow: 0 1px 0 var(--line); }
.nav { display: flex; align-items: center; justify-content: space-between; gap: 20px; height: 100%; }
.brand img { height: 44px; width: auto; filter: brightness(0) invert(1); transition: filter .25s; }
.site-header.solid .brand img { filter: none; }
nav ul { display: flex; gap: 30px; list-style: none; margin: 0; padding: 0; font-size: 15px; font-weight: 500; }
nav a { display: inline-block; padding: 12px 0; text-decoration: none; color: rgba(255, 255, 255, .85); transition: color .2s; }
nav a:hover { color: #fff; }
.site-header.solid nav a { color: var(--muted); }
.site-header.solid nav a:hover { color: var(--ink); }
nav li.m-only { display: none; }
.menu-btn {
  display: none; place-items: center; width: 44px; height: 44px; border-radius: 10px;
  border: 1.5px solid rgba(255, 255, 255, .4); background: transparent; color: #fff; cursor: pointer;
}
.site-header.solid .menu-btn { border-color: var(--line); color: var(--ink); }

/* Footer */
.site-footer { background: #071526; color: var(--on-navy-muted); font-size: 15px; padding-top: 64px; }
.f-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; padding-bottom: 48px; }
.f-logo { height: 40px; width: auto; filter: brightness(0) invert(1); margin-bottom: 16px; }
.f-grid p { max-width: 38ch; }
.f-grid h4 { color: #fff; font-size: 15px; margin-bottom: 14px; }
.f-grid div > a, .f-grid div > span { display: block; text-decoration: none; padding: 10px 0; }
.f-grid a:hover { color: #fff; }
.f-bottom { border-top: 1px solid rgba(255, 255, 255, .1); padding: 22px 24px; font-size: 14px; }

@media (max-width: 900px) {
  nav ul {
    display: none; position: absolute; left: 0; right: 0; top: var(--header-h);
    flex-direction: column; gap: 0; background: #fff; padding: 8px 24px 18px;
    box-shadow: 0 16px 30px -18px rgba(10, 28, 51, .4);
  }
  nav ul.open { display: flex; }
  nav ul a, .site-header nav ul a { display: block; padding: 14px 0; font-size: 17px; color: var(--ink); }
  nav li.m-only { display: block; }
  nav li.m-only a { color: var(--blue) !important; font-weight: 700; }
  .nav-cta { display: none; }
  .menu-btn { display: grid; }
  .section { padding: 40px 0; }
  .f-grid { grid-template-columns: 1fr 1fr; }
  .f-grid > div:first-child { grid-column: 1 / -1; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}