/* ==========================================================================
   vSSS – AI-Driven Enterprise Solutions
   Dark navy design with a cyan accent. Plain CSS, no framework.
   ========================================================================== */

:root {
  color-scheme: dark;
  --ink: #ffffff;
  --text: #c9d6ea;
  --muted: #8fa5c4;
  --line: #1c3a62;
  --bg: #061a33;
  --bg-soft: #0a2444;
  --surface: #0d2b50;
  --blue: #2fd0e4;          /* accent (cyan) */
  --blue-600: #6fe3f1;      /* accent hover */
  --blue-50: rgba(47, 208, 228, 0.1);
  --on-accent: #04182f;     /* text on accent buttons */
  --brand-red: #ff5a63;
  --radius: 12px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-display: "Plus Jakarta Sans", var(--font);
  --header-h: 72px;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-600); }
h1, h2, h3 { font-family: var(--font-display); color: var(--ink); line-height: 1.2; margin: 0 0 0.5em; letter-spacing: -0.02em; }
h1 { font-size: clamp(2rem, 4.6vw, 3.4rem); font-weight: 800; }
h2 { font-size: 1.3rem; font-weight: 700; }
h3 { font-size: 1rem; font-weight: 700; }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; list-style: none; }
:focus-visible { outline: 3px solid rgba(47, 208, 228, 0.55); outline-offset: 2px; border-radius: 6px; }
.app:focus { outline: none; }

.container { width: 100%; max-width: 1160px; margin: 0 auto; padding: 0 24px; }
@media (max-width: 600px) { .container { padding: 0 16px; } }

.skip-link { position: absolute; left: -9999px; top: 8px; z-index: 2000; background: var(--surface); padding: 8px 14px; border-radius: 8px; }
.skip-link:focus { left: 8px; }

.icon { width: 1.1em; height: 1.1em; flex: none; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; vertical-align: -0.18em; }

.kicker { margin: 0 0 10px; color: var(--blue); font-weight: 600; font-size: 0.8rem; letter-spacing: 0.12em; text-transform: uppercase; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border: 1px solid transparent;
  border-radius: 10px;
  font: 600 0.95rem/1.2 var(--font);
  cursor: pointer;
  white-space: nowrap;
  transition: background-color 0.2s, color 0.2s;
}
.btn-lg { padding: 13px 24px; font-size: 1rem; }
.btn-primary { background: var(--blue); color: var(--on-accent); }
.btn-primary:hover { background: var(--blue-600); color: var(--on-accent); }
.btn-outline { border-color: var(--blue); color: var(--blue); background: transparent; }
.btn-outline:hover { background: var(--blue-50); color: var(--blue-600); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }

/* ---------- Header: flat menu, always visible ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(6, 26, 51, 0.9);
  backdrop-filter: saturate(180%) blur(10px);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; gap: 24px; height: var(--header-h); }
.brand { flex: none; }
.brand img { height: 42px; width: auto; }
.main-nav { margin-left: auto; height: 100%; }
.nav-list { display: flex; height: 100%; gap: 4px; }
.nav-list li { display: flex; }
.nav-list a {
  position: relative;
  display: flex;
  align-items: center;
  padding: 0 12px;
  color: var(--ink);
  font-weight: 500;
  font-size: 0.93rem;
  white-space: nowrap;
}
.nav-list a::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: -1px;
  height: 2px;
  background: var(--blue);
  transform: scaleX(0);
  transition: transform 0.2s ease;
}
.nav-list a:hover, .nav-list .active a { color: var(--blue); }
.nav-list .active a::after { transform: scaleX(1); }
.header-cta { flex: none; }
.header-cta.active { background: var(--blue-600); }

/* Small screens: menu becomes a second row that scrolls sideways – no hamburger. */
@media (max-width: 1060px) {
  .header-inner { flex-wrap: wrap; height: auto; gap: 0 16px; padding-top: 10px; }
  .brand img { height: 36px; }
  .header-cta { margin-left: auto; padding: 8px 16px; }
  .main-nav {
    order: 3;
    width: calc(100% + 48px);
    margin: 6px -24px 0;
    padding: 0 12px;
    height: auto;
    overflow-x: auto;
    scrollbar-width: none;
  }
  .main-nav::-webkit-scrollbar { display: none; }
  .nav-list a { padding: 12px; }
  .nav-list a::after { bottom: 0; }
}
@media (max-width: 600px) {
  .main-nav { width: calc(100% + 32px); margin: 6px -16px 0; padding: 0 4px; }
  .nav-list a { font-size: 0.9rem; }
}

/* ---------- Home hero ---------- */
.hero {
  padding: 120px 0 110px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(ellipse 50% 70% at 78% 40%, rgba(47, 208, 228, 0.18), transparent 70%),
    radial-gradient(ellipse 40% 60% at 95% 90%, rgba(122, 92, 255, 0.16), transparent 70%),
    linear-gradient(180deg, #082448 0%, var(--bg) 100%);
}
.hero h1 { max-width: 760px; margin-bottom: 18px; font-size: clamp(2.3rem, 5.4vw, 4rem); line-height: 1.08; }
.hero .accent { color: var(--blue); }
.hero-sub { max-width: 560px; margin: 0; color: var(--text); font-size: 1.2rem; }
.hero .actions { margin-top: 32px; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 22px;
  padding: 6px 14px;
  border: 1px solid rgba(47, 208, 228, 0.35);
  border-radius: 999px;
  background: rgba(47, 208, 228, 0.08);
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 500;
}
.badge .icon { color: var(--blue); }
@media (max-width: 600px) { .hero { padding: 64px 0 56px; } }

/* ---------- Inner page hero ---------- */
.page-hero {
  padding: 56px 0 48px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(ellipse 45% 90% at 85% 30%, rgba(47, 208, 228, 0.14), transparent 70%),
    linear-gradient(180deg, #082448 0%, var(--bg-soft) 100%);
}
.page-hero h1 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); margin-bottom: 10px; }
.page-hero .lead { max-width: 720px; font-size: 1.08rem; margin: 0; }
.page-hero-body { display: flex; gap: 24px; align-items: flex-start; }
.crumbs { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 22px; font-size: 0.85rem; }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--blue); }
.crumbs .sep { color: var(--line); }
.crumbs [aria-current] { color: var(--ink); }
@media (max-width: 600px) { .page-hero { padding: 32px 0; } .page-hero-body { flex-direction: column; gap: 16px; } }

/* ---------- Rows: title left, content right ---------- */
.rows { padding: 24px 24px 40px; }
@media (max-width: 600px) { .rows { padding: 8px 16px 24px; } }
.row {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 40px;
  padding: 36px 0;
  border-bottom: 1px solid var(--line);
}
.row:last-child { border-bottom: 0; }
.row-no { display: block; margin-bottom: 6px; color: var(--muted); font: 700 0.8rem var(--font-display); letter-spacing: 0.08em; }
.row-head h2 { margin-bottom: 6px; }
.row-head h2 a { color: var(--ink); }
.row-head h2 a:hover { color: var(--blue); }
.row-sub { margin: 0; color: var(--muted); font-size: 0.95rem; }
.row-body > :last-child { margin-bottom: 0; }
.row-body p { color: var(--text); }
.row-body .statement { padding-left: 18px; border-left: 3px solid var(--blue); color: var(--ink); font: 700 clamp(1.15rem, 2vw, 1.4rem)/1.4 var(--font-display); }
.link-more { display: inline-flex; align-items: center; gap: 6px; margin-top: 14px; font-weight: 600; font-size: 0.9rem; }
.link-more .icon { transition: transform 0.2s; }
.link-more:hover .icon { transform: translateX(3px); }
@media (max-width: 860px) {
  .row { grid-template-columns: 1fr; gap: 16px; padding: 28px 0; }
  .link-more { margin-top: 8px; }
}
[id^="sec-"] { scroll-margin-top: calc(var(--header-h) + 16px); }
@media (max-width: 1060px) { [id^="sec-"] { scroll-margin-top: 130px; } }

/* Chips: one-tap links */
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips a, .chips span {
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  font-size: 0.92rem;
  font-weight: 500;
  transition: border-color 0.2s, color 0.2s, background-color 0.2s;
}
.chips a:hover { border-color: var(--blue); background: var(--blue-50); color: var(--blue); }
.checklist + .chips { margin-top: 20px; }
.chips + .note { margin-top: 20px; color: var(--muted); font-size: 0.92rem; }

/* Platform directory (always open, like a mega menu) */
.directory { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px 32px; }
.dir-title {
  display: block;
  margin-bottom: 8px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
  color: var(--brand-red);
  font: 700 0.92rem/1.3 var(--font-display);
}
.dir-title:hover { color: var(--blue); }
.dir-col li a { display: block; padding: 4px 0; color: var(--text); font-size: 0.93rem; }
.dir-col li a:hover { color: var(--blue); }
@media (max-width: 1000px) { .directory { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 420px) { .directory { gap: 24px 20px; } .dir-col li a { font-size: 0.9rem; } }

/* ---------- Partner logos ---------- */
.partners { padding: 40px 0; background: var(--bg-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.partners-title { margin: 0 0 22px; text-align: center; color: var(--muted); font-size: 0.8rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; }
.logos { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 16px; }
/* Brand logos are made for light backgrounds, so each sits on a white card. */
.logos a, .logos span { display: flex; align-items: center; justify-content: center; min-width: 150px; height: 72px; padding: 0 22px; border-radius: var(--radius); background: #fff; }
.logos img { width: auto; max-width: 150px; object-fit: contain; }
.logos .logo-icon { height: 28px; max-width: 34px; margin-right: 10px; }
.logos b { color: #1f2430; font-size: 1rem; font-weight: 700; letter-spacing: -0.01em; white-space: nowrap; }
.logos a { transition: opacity 0.2s; }
.logos a:hover { opacity: 0.75; }
@media (max-width: 600px) { .logos { gap: 12px; } .logos a, .logos span { min-width: 0; flex: 1 1 140px; height: 64px; padding: 0 14px; } }

/* ---------- CTA ---------- */
.cta {
  padding: 72px 0;
  text-align: center;
  border-top: 1px solid var(--line);
  background: radial-gradient(ellipse 60% 100% at 50% 100%, rgba(47, 208, 228, 0.14), transparent 70%), var(--bg);
}
.cta h2 { margin-bottom: 20px; font-size: clamp(1.4rem, 2.6vw, 1.9rem); }
.cta h2:has(+ .cta-text) { margin-bottom: 10px; }
.cta-text { max-width: 640px; margin: 0 auto 24px; color: var(--muted); font-size: 1.05rem; }
.partners + .cta { border-top: 0; }
.closing { padding: 88px 0; }
.closing h2 { max-width: 760px; margin: 0 auto 16px; font-size: clamp(1.6rem, 3.2vw, 2.4rem); }
.closing p { max-width: 680px; margin: 0 auto 12px; font-size: 1.08rem; }
.closing .closing-lead { margin-bottom: 28px; color: var(--ink); font-weight: 600; }

/* ---------- Tech marks (monogram badges) ---------- */
.mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--c);
  color: #fff;
  font: 800 0.72rem/1 var(--font-display);
  letter-spacing: 0.02em;
}
.mark.lg { width: 64px; height: 64px; border-radius: 16px; font-size: 1rem; }
/* Brand logo instead of monogram: white tile, or the logo itself when it is already a filled square */
.mark.logo { padding: 4px; background: #fff; border: 0; overflow: hidden; }
.mark.logo.lg { padding: 7px; }
.mark.logo.tile { padding: 0; border: 0; }
.mark.logo img { width: 100%; height: 100%; object-fit: contain; }

/* Tech cards */
.tech-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; }
.tech-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  transition: border-color 0.2s, background-color 0.2s;
}
.tech-card:hover { border-color: var(--blue); background: var(--blue-50); color: var(--text); }
.tech-card-body { min-width: 0; }
.tech-card strong { display: block; color: var(--ink); font-family: var(--font-display); }
.tech-card-body span { display: block; font-size: 0.85rem; color: var(--muted); line-height: 1.4; }

/* Lists */
.checklist { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 28px; }
.checklist li { display: flex; gap: 10px; align-items: flex-start; }
.checklist .icon { margin-top: 4px; color: var(--blue); stroke-width: 2.5; }
@media (max-width: 600px) { .checklist { grid-template-columns: 1fr; } }
/* Capability groups (technology pages with a written "page"): one card per product. */
.cap-groups { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.cap-group { padding: 20px 22px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-soft); }
.cap-group h3 { margin: 0 0 12px; color: var(--ink); font-size: 1.05rem; }
.cap-group .checklist { grid-template-columns: 1fr; gap: 8px; }
@media (max-width: 760px) { .cap-groups { grid-template-columns: 1fr; } }
.plain-list { display: grid; gap: 14px; }
.plain-list li { display: grid; gap: 2px; }
.plain-list strong { color: var(--ink); font-family: var(--font-display); }
.plain-list span { color: var(--muted); font-size: 0.95rem; }

/* Offices */
.offices { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.office h3 { display: flex; align-items: center; gap: 8px; }
.office h3 .icon { color: var(--blue); }
.office p { margin-bottom: 8px; color: var(--muted); font-size: 0.94rem; }
.office a { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; word-break: break-all; }
@media (max-width: 860px) { .offices { grid-template-columns: 1fr; } }

/* ---------- Contact ---------- */
.section { padding: 56px 24px; }
.contact-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 48px; align-items: start; }
.contact-form { padding: 32px; border: 1px solid var(--line); border-radius: 16px; background: var(--surface); }
.contact-form h2 { font-size: 1.5rem; }
.form-intro { margin-bottom: 24px; }
.contact-side h3 { margin: 28px 0 14px; font-size: 1.1rem; }
.contact-side .checklist { grid-template-columns: 1fr; }
.direct { display: grid; gap: 12px; margin-top: 28px; }
.direct a { display: flex; align-items: center; gap: 14px; padding: 14px 16px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-soft); color: var(--ink); font-weight: 600; word-break: break-all; }
.direct a:hover { border-color: var(--blue); color: var(--ink); }
.direct .icon { width: 1.4em; height: 1.4em; color: var(--blue); }
.direct small { display: block; color: var(--muted); font-weight: 500; font-size: 0.78rem; letter-spacing: 0.06em; text-transform: uppercase; }
@media (max-width: 600px) { .contact-form { padding: 22px 18px; } }
.contact-form label { display: block; margin-bottom: 16px; color: var(--ink); font-weight: 600; font-size: 0.9rem; }
.contact-form input, .contact-form select, .contact-form textarea {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 11px 13px;
  border: 1px solid #23476f;
  border-radius: 10px;
  background: var(--bg);
  color: var(--ink);
  font: 400 0.98rem var(--font);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.contact-form textarea { resize: vertical; }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 4px rgba(47, 208, 228, 0.15); }
.contact-form [aria-invalid="true"] { border-color: #ff6b6b; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-note { min-height: 1.4em; font-size: 0.9rem; margin: 0 0 12px; }
.form-note.error { color: #ff8a8a; }
.form-note.ok { color: #5ee08f; }
.form-hint { margin: 14px 0 0; color: var(--muted); font-size: 0.85rem; }
.contact-form .hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.btn:disabled { opacity: 0.6; cursor: wait; }
.map { height: 340px; background: var(--bg-soft); }
.map iframe { width: 100%; height: 100%; border: 0; display: block; }
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } }
@media (max-width: 600px) { .section { padding: 32px 16px; } }
@media (max-width: 560px) { .field-row { grid-template-columns: 1fr; gap: 0; } }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); background: #041328; font-size: 0.9rem; color: var(--muted); }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 32px; padding-top: 24px; padding-bottom: 24px; }
.footer-brand img { height: 36px; width: auto; }
.footer-contact { display: flex; flex-wrap: wrap; gap: 6px 20px; margin: 0; }
.footer-contact a { color: var(--text); }
.footer-contact a:hover { color: var(--blue); }
.footer-copy { margin: 0 0 0 auto; }
@media (max-width: 760px) { .footer-copy { margin-left: 0; width: 100%; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}