/* ==========================================================================
   Wessex — visual identity adapted from merytu (2025)
   Palette: purple 60/30/10 · Ubuntu headings · Roboto body · 8px grid
   ========================================================================== */

:root {
  /* Wessex blue scale (navy heritage base) */
  --primary: #1C5D8C;   /* Wessex blue — buttons, links, primary accents */
  --lightest: #EAF2F8;  /* pale blue — section tints, chips, icon backgrounds */
  --light: #B7D2E6;     /* light blue — borders, ghost outlines */
  --medium: #3E7CA6;    /* mid blue — secondary accents */
  --dark: #123E5F;      /* deep blue — hovers, alt headings, gradient end */
  --darker: #0D2437;    /* navy ink — headings, dark sections, footer/CTA */

  /* Wessex gold accent (the golden wyvern) */
  --accent: #C9A227;      /* gold — logo, dots, decorative highlights */
  --accent-dark: #9A7B18; /* deep gold — gold text on light backgrounds (AA-safe) */

  /* Neutrals */
  --grey-lightest: #F5F5F5;
  --grey-light: #E0E0E0;
  --grey-medium: #9E9E9E;
  --grey-dark: #6D6D6D;
  --grey-darker: #4D4D4D;
  --white: #FFFFFF;

  /* Type */
  --font-heading: 'Ubuntu', 'Segoe UI', 'Arial Rounded MT Bold', sans-serif;
  --font-body: 'Roboto', 'Arial', 'Helvetica', sans-serif;

  /* Layout */
  --maxw: 1140px;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 10px 30px rgba(13, 36, 55, 0.08);
  --shadow-hover: 0 18px 44px rgba(13, 36, 55, 0.16);
  --nav-h: 72px;
}

/* ---------- Reset ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--grey-darker);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--dark); }
ul { list-style: none; }

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--darker);
  line-height: 1.15;
  letter-spacing: -0.01em;
  font-weight: 700;
}
h1 { font-size: clamp(2.1rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.7rem, 3.5vw, 2.5rem); }
h3 { font-size: 1.25rem; }
p { color: var(--grey-darker); }

/* ---------- Layout helpers ---------- */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section { padding: 88px 0; }
.section--tint { background: var(--grey-lightest); }
.section--purple { background: var(--darker); }
.eyebrow {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: .8rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent-dark);
  margin-bottom: 12px;
}
.section-head { max-width: 680px; margin-bottom: 48px; }
.section-head p { color: var(--grey-dark); font-size: 1.1rem; margin-top: 14px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: .95rem;
  letter-spacing: .02em;
  padding: 13px 26px;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, background .2s ease, color .2s ease, box-shadow .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn--primary { background: var(--primary); color: var(--white); }
.btn--primary:hover { background: var(--dark); color: var(--white); box-shadow: 0 10px 24px rgba(28, 93, 140, 0.32); }
.btn--ghost { background: transparent; color: var(--primary); border-color: var(--light); }
.btn--ghost:hover { border-color: var(--primary); color: var(--dark); }
.btn--light { background: var(--white); color: var(--darker); }
.btn--light:hover { background: var(--lightest); color: var(--dark); }
.btn--outline-light { background: transparent; color: var(--white); border-color: rgba(255,255,255,.4); }
.btn--outline-light:hover { border-color: var(--white); background: rgba(255,255,255,.08); color: var(--white); }

/* ---------- Navbar ---------- */
.nav {
  position: sticky; top: 0; z-index: 100;
  height: var(--nav-h);
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--grey-light);
}
.nav__inner { height: 100%; display: flex; align-items: center; gap: 24px; }
.nav__logo img { height: 34px; }
.nav__menu { display: flex; gap: 28px; margin-left: 12px; }
.nav__menu a {
  font-family: var(--font-heading);
  font-size: .92rem; font-weight: 500;
  color: var(--grey-darker);
}
.nav__menu a:hover { color: var(--primary); }
.nav__right { margin-left: auto; display: flex; align-items: center; gap: 16px; }

.lang-toggle { display: inline-flex; border: 1px solid var(--grey-light); border-radius: 999px; overflow: hidden; }
.lang-toggle button {
  font-family: var(--font-heading); font-weight: 500; font-size: .8rem;
  padding: 6px 12px; border: none; background: transparent; color: var(--grey-dark); cursor: pointer;
}
.lang-toggle button.is-active { background: var(--primary); color: var(--white); }

.nav__burger { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav__burger span { display: block; width: 22px; height: 2px; background: var(--darker); margin: 4px 0; border-radius: 2px; transition: .3s; }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; padding: 96px 0 88px; background: linear-gradient(180deg, var(--lightest) 0%, var(--white) 100%); }
.hero__grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
.hero h1 { margin-bottom: 20px; }
.hero__lead { font-size: 1.18rem; color: var(--grey-dark); max-width: 40ch; margin-bottom: 32px; }
.hero__cta { display: flex; gap: 14px; flex-wrap: wrap; }
.hero__art { position: relative; }
.hero__card {
  background: var(--white); border: 1px solid var(--grey-light); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 28px;
}
.hero__card + .hero__card { margin-top: 18px; }
.hero__card h4 { font-family: var(--font-heading); color: var(--darker); font-size: 1.05rem; margin-bottom: 6px; }
.hero__card p { font-size: .95rem; color: var(--grey-dark); }
.hero__blob { position: absolute; width: 340px; height: 340px; background: radial-gradient(circle, rgba(201,162,39,.18), transparent 70%); top: -40px; right: -60px; border-radius: 50%; z-index: 0; }

/* ---------- Value strip ---------- */
.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.value { text-align: left; }
.value__k { font-family: var(--font-heading); font-weight: 700; color: var(--primary); font-size: 1.4rem; margin-bottom: 6px; }
.value p { color: var(--grey-dark); font-size: .98rem; }
.value__stat {
  margin-top: 40px; background: var(--lightest); border-radius: var(--radius);
  padding: 28px 32px; font-family: var(--font-heading); color: var(--darker);
  font-size: 1.3rem; font-weight: 500;
}
.value__stat strong { color: var(--accent-dark); }

/* ---------- Services / cards grid ---------- */
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  background: var(--white); border: 1px solid var(--grey-light); border-radius: var(--radius);
  padding: 30px 26px; box-shadow: var(--shadow); transition: transform .2s ease, box-shadow .2s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.card__icon {
  width: 52px; height: 52px; border-radius: var(--radius-sm);
  background: var(--lightest); color: var(--primary);
  display: grid; place-items: center; margin-bottom: 18px;
}
.card__icon svg { width: 26px; height: 26px; }
.card h3 { font-size: 1.12rem; margin-bottom: 10px; }
.card p { color: var(--grey-dark); font-size: .96rem; }

/* ---------- Industries ---------- */
.tags { display: flex; flex-wrap: wrap; gap: 14px; }
.tag {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--white); border: 1px solid var(--grey-light); border-radius: 999px;
  padding: 12px 20px; font-family: var(--font-heading); font-weight: 500; font-size: .95rem; color: var(--darker);
  box-shadow: 0 4px 14px rgba(13,36,55,.06);
}
.tag .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--accent); }

/* ---------- Split feature ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.split--rev .split__media { order: -1; }
.split h2 { margin-bottom: 18px; }
.split ul { margin-top: 22px; display: grid; gap: 12px; }
.split li { display: flex; gap: 12px; align-items: flex-start; color: var(--grey-darker); }
.split li svg { flex: 0 0 auto; color: var(--primary); margin-top: 3px; }
.split__media {
  background: linear-gradient(135deg, var(--primary), var(--dark));
  border-radius: var(--radius); min-height: 320px; position: relative; overflow: hidden;
  box-shadow: var(--shadow);
}
.split__media .glyph { position: absolute; inset: 0; display: grid; place-items: center; }
.split__media .glyph svg { width: 120px; height: 120px; opacity: .9; color: #fff; }
.split__media .ring { position: absolute; border: 2px solid rgba(255,255,255,.18); border-radius: 50%; }
.split__media .ring.r1 { width: 240px; height: 240px; top: -60px; left: -60px; }
.split__media .ring.r2 { width: 180px; height: 180px; bottom: -50px; right: -30px; }

/* ---------- Clients / partners ---------- */
.logos { display: grid; grid-template-columns: repeat(6, 1fr); gap: 18px; }
.logo-cell {
  height: 84px; background: var(--white); border: 1px dashed var(--grey-light); border-radius: var(--radius-sm);
  display: grid; place-items: center; color: var(--grey-medium);
  font-family: var(--font-heading); font-weight: 500; font-size: .85rem; text-align: center; padding: 8px;
}
.partners { display: flex; gap: 20px; flex-wrap: wrap; }
.partner {
  flex: 1 1 200px; min-width: 180px; height: 96px; border: 1px dashed var(--grey-light); border-radius: var(--radius-sm);
  display: grid; place-items: center; color: var(--grey-medium); font-family: var(--font-heading); font-weight: 500;
}

/* ---------- CTA band ---------- */
.cta {
  background: linear-gradient(135deg, var(--darker), var(--dark));
  border-radius: 20px; padding: 56px; text-align: center; color: #fff; position: relative; overflow: hidden;
}
.cta h2 { color: #fff; margin-bottom: 14px; }
.cta p { color: rgba(255,255,255,.82); font-size: 1.1rem; max-width: 560px; margin: 0 auto 28px; }
.cta__row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---------- Contact ---------- */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.contact form { display: grid; gap: 16px; }
.field label { display: block; font-family: var(--font-heading); font-weight: 500; font-size: .88rem; color: var(--darker); margin-bottom: 6px; }
.field input, .field textarea {
  width: 100%; font-family: var(--font-body); font-size: 1rem; color: var(--grey-darker);
  padding: 12px 14px; border: 1px solid var(--grey-light); border-radius: var(--radius-sm); background: var(--white);
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(28,93,140,.15); }
.contact__info { display: grid; gap: 22px; }
.contact__block h4 { font-family: var(--font-heading); color: var(--darker); font-size: 1rem; margin-bottom: 4px; }
.contact__block p { color: var(--grey-dark); }
.note { font-size: .82rem; color: var(--grey-medium); }

/* ---------- Footer ---------- */
.footer { background: var(--darker); color: rgba(255,255,255,.72); padding: 64px 0 28px; }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; }
.footer__brand img { height: 34px; margin-bottom: 16px; }
.footer__brand p { color: rgba(255,255,255,.6); font-size: .92rem; max-width: 34ch; }
.footer h5 { font-family: var(--font-heading); color: #fff; font-size: .95rem; margin-bottom: 16px; letter-spacing: .02em; }
.footer a { color: rgba(255,255,255,.72); font-size: .92rem; display: inline-block; padding: 4px 0; }
.footer a:hover { color: #fff; }
.footer__office { font-size: .9rem; line-height: 1.7; }
.footer__social { display: flex; gap: 12px; margin-top: 18px; }
.footer__social a { width: 36px; height: 36px; border: 1px solid rgba(255,255,255,.2); border-radius: 8px; display: grid; place-items: center; }
.footer__bottom {
  margin-top: 48px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.14);
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-size: .85rem; color: rgba(255,255,255,.55);
}

/* ---------- i18n visibility ---------- */
.lang-pt { display: none; }
html[lang="pt"] .lang-en { display: none; }
html[lang="pt"] .lang-pt { display: inline; }
html[lang="pt"] p.lang-pt,
html[lang="pt"] div.lang-pt,
html[lang="pt"] li.lang-pt { display: block; }

/* ---------- Responsive ---------- */
@media (max-width: 940px) {
  .hero__grid { grid-template-columns: 1fr; gap: 40px; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .split, .contact { grid-template-columns: 1fr; gap: 32px; }
  .split--rev .split__media { order: 0; }
  .logos { grid-template-columns: repeat(3, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  .nav__menu { display: none; }
  .nav__burger { display: block; }
  .nav.open .nav__menu {
    display: flex; flex-direction: column; position: absolute; top: var(--nav-h); left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--grey-light); padding: 16px 24px; gap: 8px;
  }
  .values { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .section { padding: 64px 0; }
  .cta { padding: 40px 24px; }
}
@media (max-width: 520px) {
  .grid-4 { grid-template-columns: 1fr; }
  .logos { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr; }
}