/* NexGlobe Trading — stylesheet
   Tokens follow NexGlobe Design System v2.0 (colour, type, space, motion). */

:root {
  /* ---- Colour ramps ---- */
  --navy-100: #E6EAF0;
  --navy-200: #C5CEDC;
  --navy-300: #94A4BE;
  --navy-400: #5B719A;
  --navy-500: #1D3A63;
  --navy-600: #16304F;
  --navy-700: #10233F;
  --navy-800: #0C1B31;
  --navy-900: #0A1628;

  --terracotta-100: #F8E7DD;
  --terracotta-200: #EFC7B0;
  --terracotta-300: #E19B76;
  --terracotta-400: #D9722F;
  --terracotta-500: #B85220;
  --terracotta-600: #9E441A;
  --terracotta-700: #7A3413;
  --terracotta-800: #5C270E;
  --terracotta-900: #3D1A09;

  --neutral-000: #FFFFFF;
  --neutral-50:  #F7F6F3;
  --neutral-100: #EAEAE7;
  --neutral-200: #DCDDDA;
  --neutral-300: #C7CBD1;
  --neutral-400: #9AA1AB;
  --neutral-600: #5A6472;
  --neutral-700: #3A414C;
  --neutral-900: #14161A;

  --success: #1F7A4D;
  --warning-text: #7A3413; /* terracotta.700 — warning tint fails as text at neutral.500 */
  --danger:  #B3261E;
  --info:    #1D3A63;

  /* ---- Semantic tokens ---- */
  --surface-page:    var(--neutral-50);
  --surface-raised:  var(--neutral-000);
  --surface-inverse: var(--navy-700);
  --text-primary:    var(--neutral-900);
  --text-inverse:    var(--neutral-000);
  --text-muted:      var(--neutral-600);
  --text-muted-inverse: var(--navy-200);
  --action-default:  var(--terracotta-500);
  --action-pressed:  var(--terracotta-700);
  --border-strong:   var(--neutral-900);
  --border-subtle:   var(--neutral-300);
  --border-inverse:  var(--navy-500);

  /* ---- Space (4px base) ---- */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-6: 24px;
  --space-8: 32px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;

  /* ---- Type ---- */
  --font-display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --font-body: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;

  /* ---- Motion ---- */
  --ease-in: cubic-bezier(.2,0,0,1);
  --ease-out: cubic-bezier(.4,0,1,1);
  --duration-1: 120ms;
  --duration-2: 200ms;
  --duration-3: 320ms;

  /* ---- Layout ---- */
  --container-max: 1440px;
  --margin: 16px;
}

@media (min-width: 480px) { :root { --margin: 24px; } }
@media (min-width: 768px) { :root { --margin: 40px; } }
@media (min-width: 1024px) { :root { --margin: 64px; } }
@media (min-width: 1440px) { :root { --margin: 80px; } }

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body, h1, h2, h3, p, figure, blockquote, dl, dd { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
input, textarea { font: inherit; color: inherit; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---------- Base ---------- */
html { scroll-behavior: smooth; }
body {
  background: var(--surface-page);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.625;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -100px;
  background: var(--navy-700);
  color: var(--neutral-000);
  padding: var(--space-3) var(--space-4);
  z-index: 100;
  transition: top var(--duration-2) var(--ease-in);
  font-weight: 600;
}
.skip-link:focus { top: var(--space-4); }

:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--terracotta-500);
  outline-offset: 2px;
}
.surface-inverse :focus-visible,
.btn-primary:focus-visible {
  outline-color: var(--terracotta-300);
}

/* ---------- Type scale ---------- */
h1, h2, h3 { font-family: var(--font-display); color: var(--text-primary); }

.display {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.5rem, 5.4vw + 1rem, 4.5rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
}

h2, .h2 {
  font-weight: 600;
  font-size: clamp(1.625rem, 1.1vw + 1.35rem, 2rem);
  line-height: 1.2;
  letter-spacing: -0.015em;
}

h3, .h3 {
  font-weight: 600;
  font-size: 1.1875rem;
  line-height: 1.37;
  letter-spacing: -0.01em;
}

p, .body { max-width: 68ch; }

.body-small { font-size: 0.875rem; line-height: 1.57; }

.label {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.75rem;
  line-height: 1.33;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.text-muted { color: var(--text-muted); }
.surface-inverse .text-muted,
.surface-inverse .body,
.surface-inverse p { color: var(--text-muted-inverse); }

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--margin);
}

.section {
  padding-block: var(--space-16);
  border-top: 2px solid var(--border-strong);
}
.section--no-rule { border-top: 0; }

.section-head {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-8);
  max-width: 68ch;
}

.eyebrow {
  color: var(--action-pressed);
}
.surface-inverse .eyebrow { color: var(--terracotta-300); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 44px;
  padding: 0 var(--space-6);
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 1rem;
  border: 2px solid transparent;
  border-radius: 0;
  transition: background-color var(--duration-1) var(--ease-in),
              border-color var(--duration-1) var(--ease-in),
              color var(--duration-1) var(--ease-in);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--action-default);
  color: var(--neutral-000);
}
.btn-primary:hover { background: var(--action-pressed); }

.btn-secondary {
  background: transparent;
  border-color: var(--navy-700);
  color: var(--navy-700);
}
.btn-secondary:hover { background: var(--navy-100); }

.surface-inverse .btn-secondary {
  border-color: var(--neutral-000);
  color: var(--neutral-000);
}
.surface-inverse .btn-secondary:hover { background: var(--navy-600); }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--surface-page);
  border-bottom: 2px solid var(--border-strong);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-3);
  gap: var(--space-4);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  flex-shrink: 0;
}
.brand-mark { width: 32px; height: 32px; flex-shrink: 0; }
.brand-word {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.0625rem;
  letter-spacing: -0.01em;
  color: var(--navy-700);
  white-space: nowrap;
}

.nav-links {
  display: none;
  align-items: center;
  gap: var(--space-6);
}
.nav-links a {
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9375rem;
  color: var(--navy-700);
  padding-block: var(--space-1);
  border-bottom: 2px solid transparent;
  transition: border-color var(--duration-1) var(--ease-in);
}
.nav-links a:hover { border-bottom-color: var(--terracotta-500); }

.nav-cta { display: none; }

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  flex-shrink: 0;
}
.nav-toggle svg { width: 24px; height: 24px; }
.nav-toggle .icon-close { display: none; }
.nav-toggle[aria-expanded="true"] .icon-open { display: none; }
.nav-toggle[aria-expanded="true"] .icon-close { display: block; }

.nav-panel {
  display: none;
  flex-direction: column;
  border-top: 2px solid var(--border-strong);
  background: var(--surface-page);
}
.nav-panel.is-open { display: flex; }
.nav-panel a {
  padding: var(--space-4) var(--margin);
  text-decoration: none;
  font-weight: 500;
  font-size: 1rem;
  color: var(--navy-700);
  border-bottom: 1px solid var(--border-subtle);
}
.nav-panel .btn { margin: var(--space-4) var(--margin) 0; }

@media (min-width: 1024px) {
  .nav-links { display: flex; }
  .nav-cta { display: inline-flex; }
  .nav-toggle { display: none; }
  .nav-panel { display: none !important; }
}

/* ---------- Hero ---------- */
.hero {
  padding-block: var(--space-20) var(--space-16);
}
.hero-grid {
  display: grid;
  gap: var(--space-8);
}
.hero-copy { max-width: 42rem; }
.hero .eyebrow { display: block; margin-bottom: var(--space-4); }
.hero h1 { margin-bottom: var(--space-6); }
.hero-lede { margin-bottom: var(--space-8); color: var(--text-muted); font-size: 1.0625rem; line-height: 1.6; }
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.hero-visual { display: none; }
@media (min-width: 900px) {
  .hero-visual { display: block; width: 100%; height: auto; max-width: 420px; justify-self: center; }
}

/* ---------- Route motif ---------- */
.route {
  margin-top: var(--space-16);
  padding-top: var(--space-8);
  border-top: 1px solid var(--border-subtle);
}
.route-line {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 1px;
  background: var(--border-subtle);
  margin-bottom: var(--space-3);
}
.route-point {
  width: 8px;
  height: 8px;
  background: var(--terracotta-500);
  flex-shrink: 0;
}
.route-labels {
  display: flex;
  justify-content: space-between;
  gap: var(--space-2);
}
.route-labels span {
  color: var(--text-muted);
  font-size: 0.6875rem;
}
.route-labels span:first-child { text-align: left; }
.route-labels span:last-child { text-align: right; }

.divider {
  border: 0;
  border-top: 1px dashed var(--border-subtle);
  margin-block: var(--space-16);
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  gap: var(--space-8);
  align-items: start;
}
.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  border-top: 1px solid var(--border-subtle);
  padding-top: var(--space-6);
  margin-top: var(--space-8);
}
.stat {
  display: flex;
  flex-direction: column;
}
.stat dt {
  order: 1;
  color: var(--text-muted);
  margin-top: var(--space-1);
}
.stat dd {
  order: 0;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 2rem;
  color: var(--navy-700);
  line-height: 1;
}

/* ---------- Cards: What we trade ---------- */
.trade-grid {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1fr;
}
@media (min-width: 768px) {
  .trade-grid { grid-template-columns: repeat(3, 1fr); }
}

.trade-card {
  background: var(--surface-raised);
  border: 1px solid var(--border-subtle);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.trade-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-subtle);
  color: var(--terracotta-500);
}
.trade-icon svg { width: 24px; height: 24px; }
.trade-card h3 { margin-bottom: 0; }
.trade-meta {
  margin-top: auto;
  padding-top: var(--space-4);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  gap: var(--space-2);
}

/* ---------- Why NexGlobe ---------- */
.why-grid {
  display: grid;
  gap: var(--space-8);
  grid-template-columns: 1fr;
}
@media (min-width: 640px) {
  .why-grid { grid-template-columns: repeat(2, 1fr); }
}
.why-item {
  display: flex;
  gap: var(--space-4);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border-subtle);
}
.why-icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--terracotta-500);
}
.why-icon svg { width: 22px; height: 22px; }
.why-item h3 { margin-bottom: var(--space-2); }

/* ---------- Contact ---------- */
.surface-inverse {
  background: var(--surface-inverse);
  color: var(--text-inverse);
}
.surface-inverse h2, .surface-inverse h3 { color: var(--text-inverse); }
.surface-inverse .route-point { background: var(--terracotta-400); }
.surface-inverse .route-line { background: var(--navy-500); }
.surface-inverse .route-labels span { color: var(--text-muted-inverse); }
.surface-inverse.section { border-top-color: var(--navy-900); }

.contact-grid {
  display: grid;
  gap: var(--space-12);
  grid-template-columns: 1fr;
}
@media (min-width: 1024px) {
  .contact-grid { grid-template-columns: 1fr 1fr; }
}

.contact-list { display: flex; flex-direction: column; gap: var(--space-6); }
.contact-list dt { margin-bottom: var(--space-1); color: var(--terracotta-300); }
.contact-list dd a {
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  border-bottom: 1px solid transparent;
  transition: border-color var(--duration-1) var(--ease-in);
}
.contact-list dd a:hover { border-bottom-color: var(--terracotta-400); }

.field { display: flex; flex-direction: column; gap: var(--space-2); margin-bottom: var(--space-4); }
.field label { font-weight: 500; font-size: 0.875rem; }
.field input,
.field textarea {
  background: var(--navy-800);
  border: 1px solid var(--navy-400);
  color: var(--neutral-000);
  padding: var(--space-3);
  min-height: 44px;
  border-radius: 0;
}
.field textarea { min-height: 120px; resize: vertical; }
.field input::placeholder,
.field textarea::placeholder { color: var(--navy-300); }
.field input:focus-visible,
.field textarea:focus-visible { outline-color: var(--terracotta-400); }

.honeypot-field { position: absolute; left: -9999px; top: -9999px; }

.form-note { margin-top: var(--space-4); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--navy-900);
  color: var(--text-inverse);
  padding-block: var(--space-12) var(--space-20);
}
.footer-top {
  display: grid;
  gap: var(--space-8);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--navy-600);
  margin-bottom: var(--space-6);
}
@media (min-width: 768px) {
  .footer-top { grid-template-columns: 2fr 1fr 1fr; }
}
.footer-brand .brand-word { color: var(--neutral-000); }
.footer-tagline { margin-top: var(--space-4); color: var(--navy-200); max-width: 32ch; }
.footer-heading { color: var(--navy-200); margin-bottom: var(--space-3); }
.footer-list { display: flex; flex-direction: column; gap: var(--space-2); }
.footer-list a { text-decoration: none; color: var(--neutral-000); }
.footer-list a:hover { color: var(--terracotta-300); }
.footer-social { display: flex; gap: var(--space-3); }
.footer-social a {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--navy-500);
  color: var(--neutral-000);
  transition: border-color var(--duration-1) var(--ease-in), color var(--duration-1) var(--ease-in);
}
.footer-social a:hover { border-color: var(--terracotta-400); color: var(--terracotta-300); }
.footer-social svg { width: 18px; height: 18px; }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-4);
  color: var(--navy-300);
}
.footer-bottom a { text-decoration: underline; color: var(--navy-200); }

@media (max-width: 767px) {
  .site-footer { padding-bottom: calc(var(--space-20) + 56px); }
}
@media (min-width: 768px) {
  .footer-bottom { padding-right: 96px; }
}

/* ---------- WhatsApp floating button ---------- */
.whatsapp-btn {
  position: fixed;
  right: var(--space-4);
  bottom: var(--space-4);
  z-index: 60;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #075E54;
  color: var(--neutral-000);
  border-radius: 0;
  box-shadow: 0 2px 0 var(--navy-900);
  transition: transform var(--duration-1) var(--ease-in);
}
.whatsapp-btn:hover { transform: translateY(-2px); }
.whatsapp-btn svg { width: 28px; height: 28px; }

@media (min-width: 1024px) {
  .whatsapp-btn { right: var(--space-8); bottom: var(--space-8); }
}

/* ---------- Reveal-on-scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--duration-3) var(--ease-in), transform var(--duration-3) var(--ease-in);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
}

/* ---------- Utilities ---------- */
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

@media (min-width: 900px) {
  .hero-grid { grid-template-columns: 1.1fr 0.9fr; align-items: center; }
  .about-grid { grid-template-columns: 1fr 1fr; }
}