/* ==========================================================================
   Nuvanta Solutions — design tokens
   Ink & harvest-gold palette: bottle-green ink (agriculture + trust),
   warm paper surface, muted brass accent (the "signal" colour, used for
   the NS mark and calls to action only).
   ========================================================================== */

:root {
  --ink: #1C2B22;
  --ink-soft: #445247;
  --surface: #FAF8F2;
  --surface-alt: #F0ECE0;
  --surface-dark: #16211B;
  --accent: #A97A1F;
  --accent-soft: #E7D7AE;
  --sage: #3E5C4E;
  --line: #DBD4C2;
  --line-dark: #35443A;
  --white: #FFFFFF;

  --font-display: "Fraunces", Georgia, serif;
  --font-body: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "IBM Plex Mono", "Courier New", monospace;

  --container: 1120px;
  --radius: 3px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

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

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.12;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
  color: var(--ink);
}

h1 { font-size: clamp(2.4rem, 5vw, 4rem); font-optical-sizing: auto; }
h2 { font-size: clamp(1.7rem, 3vw, 2.5rem); }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1em; color: var(--ink-soft); }

a { color: inherit; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1em;
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--accent);
  display: inline-block;
}

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

/* Language visibility ------------------------------------------------- */
.i18n-fr, .i18n-en, .i18n-es { display: none; }
html[lang="fr"] .i18n-fr,
html[lang="en"] .i18n-en,
html[lang="es"] .i18n-es { display: revert; }

/* Focus ------------------------------------------------------------- */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* Header --------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 248, 242, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.wordmark {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--ink);
}

.wordmark .mark { width: 26px; height: 26px; flex: none; }

nav.main-nav {
  display: flex;
  align-items: center;
  gap: 2.2rem;
}

nav.main-nav a {
  text-decoration: none;
  font-size: 0.92rem;
  color: var(--ink-soft);
  position: relative;
  padding: 4px 0;
}

nav.main-nav a[aria-current="page"] { color: var(--ink); }

nav.main-nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--accent);
}

.header-actions { display: flex; align-items: center; gap: 1.2rem; }

.lang-toggle {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px;
  gap: 2px;
}

.lang-toggle button {
  min-width: 32px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--ink-soft);
  padding: 5px 9px;
  border-radius: 999px;
}

.lang-toggle button[data-active="true"] {
  background: var(--ink);
  color: var(--surface);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: "";
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  position: relative;
  transition: transform 0.2s ease;
}
.nav-toggle span::before { position: absolute; top: -7px; }
.nav-toggle span::after { position: absolute; top: 7px; }

/* Buttons ---------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-body);
  font-size: 0.94rem;
  font-weight: 600;
  text-decoration: none;
  padding: 13px 24px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.btn-primary { background: var(--ink); color: var(--surface); }
.btn-primary:hover { background: var(--surface-dark); }

.btn-ghost { border-color: var(--line); color: var(--ink); }
.btn-ghost:hover { border-color: var(--ink); }

.btn-accent { background: var(--accent); color: var(--white); }
.btn-accent:hover { background: #8f6a1c; }

/* Hero --------------------------------------------------------------- */
.hero {
  padding: 96px 0 72px;
  text-align: center;
}

.hero .container { max-width: 780px; }
.hero .eyebrow { justify-content: center; }
.hero p.lede { font-size: 1.14rem; max-width: 54ch; margin: 0 auto 2rem; }
.hero-actions { display: flex; gap: 14px; margin-top: 0.5rem; flex-wrap: wrap; justify-content: center; }

/* Wordmark badge --------------------------------------------------------- */
.mark-badge {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--ink);
  color: var(--accent-soft);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.92rem;
  letter-spacing: -0.06em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
}

/* Sections ------------------------------------------------------------- */
section { padding: 72px 0; }
section.alt { background: var(--surface-alt); }
section.dark { background: var(--surface-dark); color: var(--surface); }
section.dark h2, section.dark h3 { color: var(--surface); }
section.dark p { color: #C7D0C9; }

.section-head { max-width: 62ch; margin-bottom: 2.5rem; }

.grid {
  display: grid;
  gap: 28px;
}
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
}

.card h3 { margin-bottom: 0.5em; }

.approach-step {
  display: flex;
  gap: 18px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}
.approach-step:last-child { border-bottom: 1px solid var(--line); }

.approach-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  padding-top: 4px;
  flex: none;
  width: 2.4em;
}

/* Service ledger --------------------------------------------------------- */
.service-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.service-meta {
  display: flex;
  gap: 18px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--sage);
  border-top: 1px dashed var(--line);
  padding-top: 14px;
  margin-top: auto;
  flex-wrap: wrap;
}

.service-meta strong { color: var(--ink); font-weight: 600; }

.service-card--highlight { border: 1px solid var(--accent); background: var(--accent-soft); }
.service-card--highlight .service-meta { border-top-color: #C9B37A; }

/* Segment tags ----------------------------------------------------------- */
.segment-card {
  padding: 26px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--white);
}
.segment-card .tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--sage);
  display: inline-block;
  margin-bottom: 10px;
}

/* Contact ------------------------------------------------------------ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.contact-primary {
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  padding: 26px 28px;
  margin-bottom: 24px;
}
.contact-primary .label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: 8px;
}
.contact-primary a {
  font-family: var(--font-display);
  font-size: 1.6rem;
  text-decoration: none;
  color: var(--ink);
  word-break: break-word;
}
.contact-primary a:hover { text-decoration: underline; }
.contact-primary p { margin: 10px 0 0; font-size: 0.9rem; }

.contact-list { list-style: none; margin: 0; padding: 0; }
.contact-list li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}
.contact-list li:last-child { border-bottom: 1px solid var(--line); }
.contact-list .label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  width: 6em;
  flex: none;
}
.contact-list a { text-decoration: none; font-size: 1.05rem; }
.contact-list a:hover { text-decoration: underline; }

.note-box {
  border-left: 2px solid var(--accent);
  padding: 4px 0 4px 18px;
  font-size: 0.92rem;
  color: var(--ink-soft);
}

/* Footer --------------------------------------------------------------- */
footer.site-footer {
  border-top: 1px solid var(--line);
  padding: 48px 0 32px;
  background: var(--surface-alt);
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-links { display: flex; gap: 22px; flex-wrap: wrap; }
.footer-links a { text-decoration: none; font-size: 0.88rem; color: var(--ink-soft); }
.footer-links a:hover { color: var(--ink); }

.footer-legal {
  font-size: 0.8rem;
  color: var(--ink-soft);
  margin-top: 24px;
  border-top: 1px solid var(--line);
  padding-top: 20px;
}

/* Legal page ------------------------------------------------------------ */
.legal-body h2 { font-size: 1.2rem; margin-top: 2.2em; }
.legal-body p, .legal-body li { color: var(--ink-soft); font-size: 0.96rem; }
.legal-body { max-width: 74ch; }

/* Responsive ------------------------------------------------------------- */
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  nav.main-nav {
    position: absolute;
    top: 76px; left: 0; right: 0;
    background: var(--surface);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 28px 28px;
    border-bottom: 1px solid var(--line);
    display: none;
  }
  nav.main-nav.open { display: flex; }
  .nav-toggle { display: block; }
  .header-actions { gap: 10px; }
  .header-actions .btn-primary { display: none; }
}