/* ==========================================================================
   sysvertex — global stylesheet
   ========================================================================== */

:root {
  --navy-950: #071427;
  --navy-900: #0A1F3D;
  --navy-800: #123059;
  --teal-700: #0F766E;
  --teal-500: #14B8A6;
  --teal-400: #2DD4BF;
  --amber-500: #F59E0B;
  --amber-600: #D97706;
  --slate-900: #1E293B;
  --slate-700: #435066;
  --slate-500: #5B6B82;
  --slate-300: #B9C6D6;
  --slate-100: #EEF3F8;
  --border: #DCE4EC;
  --bg: #FBFCFE;
  --white: #FFFFFF;

  --font-head: 'Poppins', 'Segoe UI', Arial, sans-serif;
  --font-body: 'Inter', 'Segoe UI', Arial, sans-serif;

  --container: 1160px;
  --radius: 14px;
  --shadow-sm: 0 2px 8px rgba(10, 31, 61, 0.06);
  --shadow-md: 0 12px 32px rgba(10, 31, 61, 0.10);
  --shadow-lg: 0 24px 64px rgba(10, 31, 61, 0.16);
}

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

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--slate-900);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3, h4 {
  font-family: var(--font-head);
  color: var(--navy-900);
  line-height: 1.22;
  margin: 0 0 0.6em;
}

h1 { font-size: clamp(2.1rem, 4vw, 3.2rem); font-weight: 600; }
h2 { font-size: clamp(1.7rem, 3vw, 2.35rem); font-weight: 600; }
h3 { font-size: 1.3rem; font-weight: 600; }
p { margin: 0 0 1em; color: var(--slate-700); }
a { color: inherit; text-decoration: none; }
ul { padding: 0; margin: 0; list-style: none; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-head);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal-700);
  background: rgba(20, 184, 166, 0.1);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.section { padding: 88px 0; }
.section--tight { padding: 56px 0; }
.section--alt { background: var(--slate-100); }
.section--dark {
  background: linear-gradient(160deg, var(--navy-950), var(--navy-900) 60%, var(--teal-700));
  color: var(--white);
}
.section--dark h2, .section--dark h3 { color: var(--white); }
.section--dark p { color: rgba(255,255,255,0.78); }

.section-head { max-width: 720px; margin: 0 0 48px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 13px 26px;
  border-radius: 10px;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, color 0.15s ease;
  white-space: nowrap;
}
.btn-primary { background: var(--amber-500); color: var(--navy-950); }
.btn-primary:hover { background: var(--amber-600); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-outline { border-color: rgba(255,255,255,0.4); color: var(--navy-900); background: transparent; }
.btn-outline:hover { border-color: var(--navy-900); }
.section--dark .btn-outline { color: var(--white); border-color: rgba(255,255,255,0.5); }
.section--dark .btn-outline:hover { border-color: var(--white); background: rgba(255,255,255,0.08); }
.btn-ghost { color: var(--teal-700); padding: 13px 6px; }
.btn-ghost:hover { color: var(--teal-500); }
.btn-row { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; margin-top: 8px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(251, 252, 254, 0.92);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--border);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand img { height: 40px; width: 40px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-name { font-family: var(--font-head); font-size: 1.28rem; font-weight: 700; color: var(--navy-900); }
.brand-sub { font-family: var(--font-head); font-size: 0.62rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--teal-700); }

.nav-desktop { display: flex; align-items: center; gap: 6px; }
.nav-desktop a {
  font-family: var(--font-head);
  font-weight: 500;
  font-size: 0.96rem;
  color: var(--slate-700);
  padding: 10px 16px;
  border-radius: 8px;
  transition: color 0.15s ease, background 0.15s ease;
}
.nav-desktop a:hover { color: var(--navy-900); background: var(--slate-100); }
.nav-desktop a.active { color: var(--teal-700); font-weight: 600; }
.nav-cta { display: flex; align-items: center; gap: 18px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span { width: 24px; height: 2px; background: var(--navy-900); border-radius: 2px; }

.nav-mobile {
  display: none;
  flex-direction: column;
  background: var(--white);
  border-top: 1px solid var(--border);
  padding: 12px 24px 20px;
}
.nav-mobile a {
  padding: 13px 4px;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-head);
  font-weight: 500;
  color: var(--slate-700);
}
.nav-mobile a.active { color: var(--teal-700); font-weight: 600; }
.nav-mobile .btn { margin-top: 16px; align-self: flex-start; }

body.nav-open .nav-mobile { display: flex; }

@media (max-width: 900px) {
  .nav-desktop, .nav-cta .btn-primary.desktop-only { display: none; }
  .nav-toggle { display: flex; }
}

/* ---------- Hero ---------- */
.hero {
  padding: 72px 0 96px;
  overflow: hidden;
}
.hero .container {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}
.hero-copy p.lead { font-size: 1.15rem; color: var(--slate-700); }
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: 28px;
  margin-top: 40px;
}
.hero-stats .stat-num {
  font-family: var(--font-head);
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--navy-900);
}
.section--dark .hero-stats .stat-num { color: var(--white); }
.hero-stats .stat-label { font-size: 0.85rem; color: var(--slate-500); }

@media (max-width: 900px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero-visual { order: -1; max-width: 420px; margin: 0 auto; }
}

/* ---------- Cards / Grids ---------- */
.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); }
@media (max-width: 960px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }

.icon-tile {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: linear-gradient(145deg, var(--teal-500), var(--navy-900));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.icon-tile svg { width: 26px; height: 26px; stroke: var(--white); }

.tag-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.tag {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--teal-700);
  background: rgba(20,184,166,0.1);
  padding: 5px 12px;
  border-radius: 999px;
}

/* ---------- Service / Retail process strip ---------- */
.process-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.process-step {
  flex: 1 1 150px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 18px;
  position: relative;
}
.process-step .step-num {
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--teal-500);
  font-size: 0.85rem;
  display: block;
  margin-bottom: 8px;
}

/* ---------- Platform layer list ---------- */
.platform-block {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 20px;
  padding: 26px 0;
  border-bottom: 1px solid var(--border);
}
.platform-block:last-child { border-bottom: none; }
.platform-block .icon-tile { margin-bottom: 0; }

/* ---------- Case study cards ---------- */
.case-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}
.case-card .case-top {
  padding: 26px 28px 0;
}
.case-card .case-body { padding: 6px 28px 28px; flex: 1; display: flex; flex-direction: column; }
.case-metrics {
  display: flex;
  gap: 24px;
  margin: 18px 0 6px;
  flex-wrap: wrap;
}
.case-metrics .metric-num {
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--teal-700);
}
.case-metrics .metric-label { font-size: 0.78rem; color: var(--slate-500); }

/* ---------- Quote / testimonial ---------- */
.quote-block {
  border-left: 4px solid var(--teal-500);
  padding-left: 24px;
  margin: 24px 0;
}
.quote-block p { font-size: 1.05rem; font-style: italic; color: var(--slate-900); }

/* ---------- Values ---------- */
.value-item { display: flex; gap: 18px; align-items: flex-start; }
.value-item .icon-tile { flex-shrink: 0; }

/* ---------- CTA banner ---------- */
.cta-banner {
  background: linear-gradient(135deg, var(--navy-900), var(--teal-700));
  border-radius: 20px;
  padding: 56px;
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-banner h2 { color: var(--white); margin-bottom: 6px; }
.cta-banner p { color: rgba(255,255,255,0.82); margin: 0; }

/* ---------- Table ---------- */
.compare-table { width: 100%; border-collapse: collapse; }
.compare-table th, .compare-table td {
  text-align: left;
  padding: 16px 18px;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}
.compare-table th { font-family: var(--font-head); color: var(--navy-900); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--navy-950);
  color: rgba(255,255,255,0.7);
  padding: 64px 0 28px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.footer-top .brand-name { color: var(--white); }
.footer-top .brand-sub { color: var(--teal-400); }
.footer-col h4 { color: var(--white); font-size: 0.95rem; margin-bottom: 16px; }
.footer-col a, .footer-col span { display: block; color: rgba(255,255,255,0.68); padding: 6px 0; font-size: 0.93rem; }
.footer-col a:hover { color: var(--teal-400); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  padding-top: 24px;
  font-size: 0.85rem;
  flex-wrap: wrap;
  gap: 12px;
}
@media (max-width: 900px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .footer-top { grid-template-columns: 1fr; }
}

/* ---------- Page header (interior pages) ---------- */
.page-header {
  padding: 56px 0 40px;
  background: var(--slate-100);
  border-bottom: 1px solid var(--border);
}
.breadcrumb { font-size: 0.85rem; color: var(--slate-500); margin-bottom: 14px; }
.breadcrumb a:hover { color: var(--teal-700); }

/* ---------- Anchor offset for sticky header ---------- */
[id] { scroll-margin-top: 96px; }

/* ---------- Utility ---------- */
.mt-0 { margin-top: 0; }
.text-center { text-align: center; }
.max-w { max-width: 640px; }
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }