/* ============================================
   ORBIT IMPACT — BRAND.CSS
   
   DESIGN PRINCIPLE:
   The world is becoming black and white.
   Colour appears only where it carries meaning.
============================================ */

/* ── RESET ── */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ── TOKENS ── */

:root {
  --oi-black:       #0A0A0A;
  --oi-dark:        #111111;
  --oi-gray-1:      #1E1E1E;
  --oi-gray-2:      #444444;
  --oi-gray-3:      #555555;
  --oi-gray-4:      #888888;
  --oi-gray-5:      #AAAAAA;
  --oi-gray-6:      #DDDDDD;
  --oi-gray-7:      #F4F4F4;
  --oi-gray-8:      #FAFAFA;
  --oi-white:       #FFFFFF;
  --oi-sage-accent: #8A9688;
  --oi-sage-light:  #A8B8A4;
  --oi-impact:      #A8BC9A;
  --oi-sage:        #7A8C6E;
  --oi-terracotta:  #A0623A;
  --oi-shadow-sm:   0 2px 8px rgba(0,0,0,0.06);
  --oi-shadow-md:   0 4px 24px rgba(0,0,0,0.09);
  --oi-shadow-lg:   0 8px 48px rgba(0,0,0,0.14);
}

/* ── BASE ── */

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--oi-white);
  color: var(--oi-black);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.5;
}

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

/* ── NAV ── */

nav {
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 0.5px solid var(--oi-gray-6);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  box-shadow: var(--oi-shadow-sm);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  min-height: 44px;
}

.nav-logo-mark {
  width: 24px;
  height: 24px;
  border: 1.5px solid var(--oi-black);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.nav-logo-mark::after {
  content: '';
  width: 10px;
  height: 1.5px;
  background: var(--oi-black);
  transform: rotate(-30deg);
  display: block;
}

.nav-brand-name {
  font-family: 'Inter Tight', sans-serif;
  font-size: 10px;
  letter-spacing: 2.5px;
  color: var(--oi-black);
  text-transform: uppercase;
  font-weight: 500;
}

.nav-contact {
  font-size: 10px;
  color: var(--oi-gray-4);
  text-decoration: none;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  min-height: 44px;
  display: flex;
  align-items: center;
  transition: color 0.2s;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 180px;
}

.nav-contact:hover,
.nav-contact:focus {
  color: var(--oi-black);
}

/* ── HERO ── */

.hero {
  margin-top: 56px;
  position: relative;
  min-height: 92dvh; /* Upgraded to Dynamic Viewport Height to prevent mobile snapping */
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 56px 24px 64px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('hero.jpg');
  background-size: cover;
  background-position: center 40%;
  z-index: 0;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(8,8,8,0.72) 0%,
    rgba(8,8,8,0.58) 55%,
    rgba(8,8,8,0.48) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 680px;
}

.hero-eyebrow {
  font-family: 'Inter', sans-serif;
  font-size: 9px;
  letter-spacing: 3px;
  color: var(--oi-sage-light);
  text-transform: uppercase;
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 400;
}

.hero-eyebrow::before {
  content: '';
  width: 20px;
  height: 1px;
  background: var(--oi-sage-light);
  display: block;
  flex-shrink: 0;
}

.hero-headline {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 56px;
  font-weight: 400;
  color: var(--oi-white);
  line-height: 1.0;
  letter-spacing: -0.5px;
  margin-bottom: 32px;
}

.hero-headline .colour-word {
  color: var(--oi-impact);
  font-style: italic;
  display: block;
}

.hero-divider {
  width: 36px;
  height: 1px; /* Changed from 1.5px to 1px for clean rendering across all mobile pixel densities */
  background: var(--oi-sage-light);
  margin-bottom: 28px;
}

.hero-sub {
  font-family: 'Inter', sans-serif;
  font-size: 15px;
  color: rgba(255,255,255,0.62);
  line-height: 1.85;
  max-width: 480px;
  margin-bottom: 40px;
  font-weight: 400;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 28px;
  border: 0.5px solid rgba(255,255,255,0.28);
  color: var(--oi-white);
  font-size: 10px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  text-decoration: none;
  transition: border-color 0.25s, color 0.25s, background 0.25s;
  min-height: 44px;
  font-family: 'Inter', sans-serif;
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(4px);
}

.hero-cta:hover,
.hero-cta:focus {
  border-color: var(--oi-sage-light);
  color: var(--oi-sage-light);
  background: rgba(255,255,255,0.08);
}

/* ── COLOUR RULE ── */

.colour-rule {
  height: 2px;
  background: var(--oi-sage-accent);
}

/* ── CONTEXT ── */

.context {
  background: var(--oi-white);
  padding: 56px 24px;
}

.section-label {
  font-family: 'Inter', sans-serif;
  font-size: 9px;
  letter-spacing: 2.5px;
  color: var(--oi-gray-4);
  text-transform: uppercase;
  margin-bottom: 16px;
  font-weight: 400;
}

.context-headline {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 26px;
  font-weight: 400;
  color: var(--oi-black);
  line-height: 1.5;
  max-width: 560px;
}

/* ── FOOTER ── */

footer {
  margin-top: auto;
  padding: 28px 24px;
  background: var(--oi-dark);
  border-top: 0.5px solid var(--oi-gray-1);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-email {
  font-family: 'Inter Tight', sans-serif;
  font-size: 15px;
  color: var(--oi-white);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
  min-height: 44px;
  display: flex;
  align-items: center;
}

.footer-email:hover,
.footer-email:focus {
  color: var(--oi-sage-light);
}

.footer-tagline {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  color: var(--oi-gray-4);
  line-height: 1.6;
  max-width: 420px;
}

.footer-bottom {
  margin-top: 12px;
  padding-top: 16px;
  border-top: 0.5px solid var(--oi-gray-1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

.footer-domain {
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  color: var(--oi-gray-2);
  letter-spacing: 0.5px;
}

.footer-locations {
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  color: var(--oi-gray-2);
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* ── TABLET 600px+ ── */

@media (min-width: 600px) {
  nav { padding: 0 40px; }
  .nav-brand-name { font-size: 11px; }
  .nav-contact { max-width: none; letter-spacing: 1px; }

  .hero { padding: 72px 40px 80px; min-height: 88vh; }
  .hero-headline { font-size: 72px; }
  .hero-sub { font-size: 16px; }

  .context { padding: 64px 40px; }
  .context-headline { font-size: 30px; }

  footer { padding: 36px 40px; }
}

/* ── DESKTOP 1024px+ ── */

@media (min-width: 1024px) {
  nav { padding: 0 64px; }

  .hero { padding: 96px 64px 112px; min-height: 90vh; }
  .hero-headline { font-size: 96px; letter-spacing: -1px; }

  .context { padding: 80px 64px; }
  .context-headline { font-size: 34px; }

  footer { padding: 40px 64px; }
}

/* ── WIDE 1440px+ ── */

@media (min-width: 1440px) {
  .hero-headline { font-size: 112px; }

  .hero,
  .context { padding-left: 96px; padding-right: 96px; }

  footer { padding-left: 96px; padding-right: 96px; }
}