/* =========================
   Northstar Design System
   ========================= */

:root {
  --green: #0C5146;
  --green-deep: #083A32;
  --green-soft: #1A6A5C;
  --cream: #DED6CB;
  --cream-soft: #EAE3D9;
  --cream-pale: #F4EFE7;
  --paper: #FBF8F3;
  --ink: #0C5146;
  --ink-80: rgba(12, 81, 70, 0.80);
  --ink-60: rgba(12, 81, 70, 0.60);
  --ink-40: rgba(12, 81, 70, 0.40);
  --ink-20: rgba(12, 81, 70, 0.20);
  --ink-10: rgba(12, 81, 70, 0.10);
  --white: #FFFFFF;

  --display: "Instrument Serif", "Times New Roman", serif;
  --sans: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;

  --max: 1440px;
  --gutter: clamp(20px, 4vw, 56px);

  --ease: cubic-bezier(0.2, 0.6, 0.2, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a { color: inherit; text-decoration: none; }

::selection { background: var(--green); color: var(--cream); }

/* ---- Type scale ---- */
.display {
  font-family: var(--display);
  font-weight: 400;
  letter-spacing: -0.015em;
  line-height: 0.95;
  font-style: normal;
}
.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 500;
}
.body-lg { font-size: 19px; line-height: 1.55; max-width: 60ch; }
.caps { text-transform: uppercase; letter-spacing: 0.06em; }

/* ---- Layout ---- */
.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

section { position: relative; }

/* ---- Nav ---- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  padding: 18px 0;
  transition: background 0.4s var(--ease), backdrop-filter 0.4s var(--ease), border-color 0.4s var(--ease);
  border-bottom: 1px solid transparent;
  mix-blend-mode: normal;
}
.nav.scrolled {
  background: rgba(251, 248, 243, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--ink-10);
}
.nav.on-dark { color: var(--cream); }
.nav.on-dark.scrolled { color: var(--ink); }

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav-logo { display: flex; align-items: center; gap: 10px; }
.nav-logo img { height: 28px; width: auto; }
.nav-links {
  display: flex;
  gap: 32px;
  align-items: center;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.nav-links a {
  position: relative;
  padding: 6px 0;
  opacity: 0.85;
  transition: opacity 0.2s;
}
.nav-links a:hover { opacity: 1; }
.nav-links a.active { opacity: 1; }
.nav-links a.active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0;
  height: 1px; background: currentColor;
}
.nav-links .nav-sep {
  width: 1px;
  height: 14px;
  background: currentColor;
  opacity: 0.25;
  margin: 0 4px;
}
.nav-links .nav-anchor {
  opacity: 0.55;
  font-weight: 400;
}
.nav-links .nav-anchor::before {
  content: "↓ ";
  opacity: 0.6;
  margin-right: 2px;
  font-size: 10px;
}
.nav-links .nav-anchor:hover { opacity: 1; }
.nav-cta {
  border: 1px solid currentColor;
  padding: 8px 14px;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  transition: background 0.2s, color 0.2s;
}
.nav-cta:hover { background: var(--green); color: var(--cream); border-color: var(--green); }
.nav.on-dark:not(.scrolled) .nav-cta:hover { background: var(--cream); color: var(--green); border-color: var(--cream); }

/* ---- Language switcher ---- */
.lang-switcher {
  position: relative;
  display: inline-flex;
  align-items: center;
}
.lang-switcher .lang-btn {
  display: inline-flex;
  align-items: center;
  background: transparent;
  border: 1px solid currentColor;
  color: inherit;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 8px 12px;
  border-radius: 999px;
  cursor: pointer;
  opacity: 0.85;
  transition: opacity 0.2s, background 0.2s, color 0.2s;
}
.lang-switcher .lang-btn:hover { opacity: 1; }
.lang-switcher.open .lang-btn { background: var(--green); color: var(--cream); border-color: var(--green); }
.nav.on-dark:not(.scrolled) .lang-switcher.open .lang-btn { background: var(--cream); color: var(--green); border-color: var(--cream); }
.lang-switcher .lang-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 140px;
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--ink-20);
  border-radius: 8px;
  padding: 6px;
  box-shadow: 0 12px 36px rgba(12, 81, 70, 0.18);
  display: none;
  flex-direction: column;
  gap: 2px;
  z-index: 250;
}
.lang-switcher.open .lang-menu { display: flex; }
.lang-switcher .lang-menu button {
  background: transparent;
  border: none;
  text-align: left;
  font-family: var(--sans);
  font-size: 13px;
  letter-spacing: 0;
  text-transform: none;
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
  color: var(--ink);
  transition: background 0.15s;
}
.lang-switcher .lang-menu button:hover { background: var(--cream-pale); }
.lang-switcher .lang-menu button.active { background: var(--green); color: var(--cream); }
@media (max-width: 900px) {
  .lang-switcher .lang-btn { padding: 6px 10px; font-size: 10px; }
}

@media (max-width: 900px) {
  .nav-links { display: none; }
}
@media (max-width: 560px) {
  .nav { padding: 14px 0; }
  .nav-logo img { height: 22px; }
  .nav-cta {
    font-size: 10px;
    padding: 7px 12px;
    letter-spacing: 0.14em;
  }
  .footer { padding: 60px 0 32px; }
  .footer-grid { gap: 32px 20px; margin-top: 32px; padding-top: 32px; }
  .footer-partner { gap: 16px; margin-top: 40px; padding-top: 24px; }
  .footer-partner .partner-chip { padding: 12px 18px; }
  .footer-partner .partner-chip img { height: 40px; }
  .footer-partner .partner-note { font-size: 12px; }
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: pointer;
  border: 1px solid var(--green);
  background: var(--green);
  color: var(--cream);
  transition: transform 0.2s var(--ease), background 0.2s, color 0.2s;
}
.btn:hover { background: var(--green-deep); transform: translateY(-1px); }
.btn.ghost {
  background: transparent; color: currentColor; border-color: currentColor;
}
.btn.ghost:hover { background: var(--cream); color: var(--green); border-color: var(--cream); }
.btn .arr { transition: transform 0.2s var(--ease); }
.btn:hover .arr { transform: translateX(4px); }

/* ---- Footer ---- */
.footer {
  background: var(--green);
  color: var(--cream);
  padding: 80px 0 40px;
  margin-top: 0;
}
.footer .big {
  margin-bottom: 24px;
}
.footer .big img { display: block; width: 100%; max-width: 480px; height: auto; }
.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  padding-top: 32px;
  border-top: 1px solid rgba(222, 214, 203, 0.25);
}
.footer-grid h4 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 500;
  opacity: 0.6;
  margin-bottom: 18px;
}
.footer-grid ul { list-style: none; }
.footer-grid li { margin-bottom: 10px; font-size: 14px; }
.footer-grid a { opacity: 0.85; }
.footer-grid a:hover { opacity: 1; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 60px;
  padding-top: 24px;
  border-top: 1px solid rgba(222, 214, 203, 0.15);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.6;
}
.footer-partner {
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid rgba(222, 214, 203, 0.15);
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}
.footer-partner .label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  opacity: 0.55;
}
.footer-partner .partner-chip {
  background: var(--cream);
  padding: 18px 28px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
}
.footer-partner .partner-chip img {
  display: block;
  height: 56px;
  width: auto;
}
.footer-partner .partner-note {
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.5;
  opacity: 0.75;
  max-width: 48ch;
}
.footer-contact {
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid rgba(222, 214, 203, 0.15);
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 32px;
  align-items: start;
}
.footer-contact .label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  opacity: 0.55;
}
.footer-contact .contact-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.footer-contact .addr {
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.6;
  opacity: 0.9;
}
.footer-contact .addr strong {
  display: block;
  font-weight: 500;
  margin-bottom: 4px;
}
.footer-contact .lines { display: grid; gap: 12px; align-content: start; }
.footer-contact .lines > div { display: flex; flex-direction: column; gap: 2px; }
.footer-contact .lines .k {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.55;
}
.footer-contact .lines a {
  font-family: var(--sans);
  font-size: 14px;
  opacity: 0.9;
  border-bottom: 1px solid rgba(222, 214, 203, 0.3);
  padding-bottom: 1px;
  width: max-content;
}
.footer-contact .lines a:hover { opacity: 1; }
@media (max-width: 760px) {
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .footer-contact { grid-template-columns: 1fr; gap: 16px; }
  .footer-contact .contact-body { grid-template-columns: 1fr; gap: 20px; }
}

/* ---- Utility ---- */
.divider {
  height: 1px; background: var(--ink-20); margin: 80px 0;
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 6px 12px;
  border: 1px solid currentColor;
  border-radius: 999px;
  opacity: 0.9;
}

/* ---- Reveal animation ---- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}
.reveal.in { opacity: 1; transform: none; }

/* ---- Number counter ---- */
.stat-num {
  font-family: var(--display);
  font-size: clamp(56px, 8vw, 112px);
  line-height: 0.95;
  letter-spacing: -0.02em;
}