/* ============================================
   WESH SYSTEMS — CORPORATE SITE
   Base tokens per SaccoX/SaccoExit shared system,
   extended with an ink tone for the hub/network motif.
   ============================================ */

:root {
  /* BRAND COLORS — Safaricom inspired, as supplied */
  --color-primary: #43B02A;
  --color-primary-dark: #2F8F1F;
  --color-primary-light: #46BD61;
  --color-accent: #46BD61;

  /* NEUTRAL COLORS */
  --color-background: #FFFFFF;
  --color-surface: #F9FAFB;
  --color-text-primary: #1F2937;
  --color-text-secondary: #6B7280;
  --color-border: #E5E7EB;

  /* SEMANTIC COLORS */
  --color-error: #DC2626;
  --color-warning: #F59E0B;
  --color-success: #43B02A;

  /* EXTENSION — deep ink derived from the primary-dark hue,
     used for the hub/network hero and footer to give the
     umbrella brand its own gravity distinct from the products. */
  --color-ink: #0B1F14;
  --color-ink-raised: #12291C;
  --color-ink-border: #1E3B29;
  --color-ink-text-secondary: #9FB8A8;

  /* Product identity accents — each product keeps its own mark */
  --color-verityke: #008080;
  --color-verityke-light: #14A3A3;
  --color-veritytrack: #2F8F1F;
  --color-veritytrack-light: #46BD61;
  --color-saccox: #0D3B2E;
  --color-saccox-light: #C9963A;

  /* TYPOGRAPHY */
  --font-display: 'Space Grotesk', 'Inter', -apple-system, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'SFMono-Regular', Menlo, monospace;

  --font-size-h1: 56px;
  --font-size-h2: 32px;
  --font-size-h3: 22px;
  --font-size-body: 16px;
  --font-size-small: 13px;

  --font-weight-bold: 700;
  --font-weight-semibold: 600;
  --font-weight-normal: 400;

  --line-height-heading: 1.2;
  --line-height-body: 1.6;

  /* SPACING */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;

  /* BORDERS & RADIUS */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-pill: 27.5px;

  --border-color: var(--color-border);
  --border-subtle: 1px solid var(--border-color);

  /* SHADOWS */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 32px rgba(11,31,20,0.14);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: var(--font-size-body);
  line-height: var(--line-height-body);
  color: var(--color-text-primary);
  background: var(--color-background);
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--font-size-small);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary-light);
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
}

.eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary-light);
  box-shadow: 0 0 0 3px rgba(70,189,97,0.25);
}

.eyebrow--dark { color: var(--color-text-secondary); }
.eyebrow--dark::before { background: var(--color-primary); box-shadow: 0 0 0 3px rgba(67,176,42,0.15); }

/* ============ HEADER ============ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.86);
  backdrop-filter: blur(10px);
  border-bottom: var(--border-subtle);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-display);
  font-weight: var(--font-weight-bold);
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--color-text-primary);
}

.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: linear-gradient(145deg, var(--color-primary-light), var(--color-primary-dark));
  position: relative;
  flex-shrink: 0;
}

.brand-mark::after {
  content: '';
  position: absolute;
  inset: 8px;
  border-radius: 2px;
  background: var(--color-background);
  opacity: 0.9;
}

.main-nav { display: flex; align-items: center; gap: var(--space-2xl); }

.main-nav a {
  font-size: 14px;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  transition: color 0.15s ease;
}

.main-nav a:hover { color: var(--color-primary-dark); }

.nav-toggle { display: none; }

/* ============ HERO ============ */

.hero {
  background: var(--color-ink);
  color: #fff;
  position: relative;
  overflow: hidden;
  padding: var(--space-4xl) 0 var(--space-3xl);
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-ink-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-ink-border) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.35;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 100%);
}

.hero .container { position: relative; }

.hero-copy { max-width: 680px; }

.hero-copy .eyebrow { margin-bottom: var(--space-lg); }

.hero h1 {
  font-family: var(--font-display);
  font-size: var(--font-size-h1);
  line-height: var(--line-height-heading);
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-lg);
}

.hero h1 em {
  font-style: normal;
  color: var(--color-primary-light);
}

.hero p.lede {
  font-size: 18px;
  color: var(--color-ink-text-secondary);
  max-width: 520px;
  margin-bottom: var(--space-2xl);
}

.hero-actions { display: flex; gap: var(--space-md); flex-wrap: wrap; margin-bottom: var(--space-4xl); }

.btn {
  font-family: var(--font-body);
  font-weight: var(--font-weight-semibold);
  font-size: 14px;
  padding: 13px 24px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}

.btn-primary:hover { background: var(--color-primary-light); transform: translateY(-1px); box-shadow: var(--shadow-md); }

.btn-ghost {
  background: transparent;
  border-color: var(--color-ink-border);
  color: #fff;
}

.btn-ghost:hover { border-color: var(--color-primary-light); color: var(--color-primary-light); }

/* Network diagram */

.network {
  width: 100%;
  height: auto;
}

.network .node-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  fill: var(--color-ink-text-secondary);
  text-transform: uppercase;
}

.network .node-title {
  font-family: var(--font-display);
  font-weight: 700;
  fill: #fff;
}

.network .hub-ring {
  fill: none;
  stroke: var(--color-primary);
  stroke-width: 1;
  opacity: 0.35;
}

.network .link {
  fill: none;
  stroke: var(--color-primary-light);
  stroke-width: 1.5;
  stroke-dasharray: 4 6;
  opacity: 0.6;
  animation: flow 2.4s linear infinite;
}

.network .pulse {
  fill: var(--color-primary-light);
  filter: drop-shadow(0 0 6px rgba(70,189,97,0.9));
}

@keyframes flow {
  to { stroke-dashoffset: -20; }
}

@media (prefers-reduced-motion: reduce) {
  .network .link { animation: none; }
  html { scroll-behavior: auto; }
}

/* ============ PRODUCTS ============ */

.section { padding: var(--space-4xl) 0; }

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-lg);
  margin-bottom: var(--space-2xl);
  flex-wrap: wrap;
}

.section-head h2 {
  font-family: var(--font-display);
  font-size: var(--font-size-h2);
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.01em;
  margin-top: var(--space-sm);
}

.section-head p {
  color: var(--color-text-secondary);
  max-width: 420px;
  font-size: 15px;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.product-card {
  border: var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  background: var(--color-surface);
  position: relative;
  overflow: hidden;
  transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
  border-color: transparent;
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--accent, var(--color-primary));
}

.product-card--verityke { --accent: linear-gradient(90deg, var(--color-verityke), var(--color-verityke-light)); }
.product-card--veritytrack { --accent: linear-gradient(90deg, var(--color-veritytrack), var(--color-veritytrack-light)); }
.product-card--saccox { --accent: linear-gradient(90deg, var(--color-saccox), var(--color-saccox-light)); opacity: 0.92; }
.product-card--saccox .product-tag { color: var(--color-saccox); background: rgba(201,150,58,0.14); }

.product-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  display: inline-block;
  width: fit-content;
  margin-bottom: var(--space-lg);
}

.product-card--verityke .product-tag { color: var(--color-verityke); background: rgba(0,128,128,0.09); }
.product-card--veritytrack .product-tag { color: var(--color-veritytrack); background: rgba(47,143,31,0.09); }

.product-card h3 {
  font-family: var(--font-display);
  font-size: var(--font-size-h3);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-sm);
}

.product-card .tagline {
  font-size: 15px;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-md);
}

.product-card .desc {
  color: var(--color-text-secondary);
  font-size: 14.5px;
  margin-bottom: var(--space-xl);
  flex-grow: 1;
}

.product-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-weight: var(--font-weight-semibold);
  font-size: 14px;
  color: var(--color-text-primary);
  padding-top: var(--space-lg);
  border-top: var(--border-subtle);
}

.product-link svg { width: 14px; height: 14px; transition: transform 0.15s ease; }
.product-link:hover svg { transform: translate(2px, -2px); }

.product-link--disabled {
  color: var(--color-text-secondary);
  cursor: default;
}
.product-link--disabled:hover svg { transform: none; }

/* ============ ABOUT / TRUST STRIP ============ */

.about {
  background: var(--color-surface);
  border-top: var(--border-subtle);
  border-bottom: var(--border-subtle);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.about h2 {
  font-family: var(--font-display);
  font-size: var(--font-size-h2);
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.01em;
  margin: var(--space-sm) 0 var(--space-lg);
  max-width: 460px;
}

.about p {
  color: var(--color-text-secondary);
  max-width: 460px;
}

.facts { display: flex; flex-direction: column; gap: var(--space-lg); }

.fact {
  display: flex;
  gap: var(--space-lg);
  padding: var(--space-lg);
  background: var(--color-background);
  border: var(--border-subtle);
  border-radius: var(--radius-md);
}

.fact-index {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-primary-dark);
  flex-shrink: 0;
}

.fact-body h4 {
  font-size: 15px;
  font-weight: var(--font-weight-semibold);
  margin-bottom: 2px;
}

.fact-body p {
  font-size: 13.5px;
  color: var(--color-text-secondary);
  max-width: none;
}

/* ============ FOOTER ============ */

.site-footer {
  background: var(--color-ink);
  color: var(--color-ink-text-secondary);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-2xl);
  flex-wrap: wrap;
  padding-bottom: var(--space-2xl);
  border-bottom: 1px solid var(--color-ink-border);
  margin-bottom: var(--space-lg);
}

.footer-brand .brand { color: #fff; margin-bottom: var(--space-sm); }
.footer-brand p { font-size: 14px; max-width: 320px; }

.footer-links { display: flex; gap: var(--space-3xl); }

.footer-col h5 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ink-text-secondary);
  margin-bottom: var(--space-md);
}

.footer-col a {
  display: block;
  font-size: 14px;
  color: #fff;
  margin-bottom: var(--space-sm);
  opacity: 0.85;
}

.footer-col a:hover { color: var(--color-primary-light); opacity: 1; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

/* ============ RESPONSIVE ============ */

@media (max-width: 980px) {
  .products-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
  :root { --font-size-h1: 40px; --font-size-h2: 26px; }
  .main-nav { display: none; }
  .products-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .footer-top { flex-direction: column; }
}

/* Focus states for accessibility */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--color-primary-light);
  outline-offset: 3px;
}