/* Aiveris static site styles — post-rebrand (April 2026).
   Dark-first: navy #000619 canvas, brand blue #3040F0 single accent,
   Inter + IBM Plex Mono. See design system for full tokens.
*/

:root {
  /* Brand navy */
  --navy-950:#000619;
  --navy-900:#030B24;
  --navy-800:#0A1733;
  --navy-700:#172448;
  --navy-600:#253463;

  /* Brand blue */
  --blue-500:#3040F0;
  --blue-400:#5363F4;
  --blue-600:#2533CC;
  --blue-300:#8A97F8;
  --blue-50:#EEF0FE;

  /* Light surfaces */
  --white:#FFFFFF;
  --paper:#F7F8FB;
  --paper-2:#EDEFF5;
  --border-light:#E3E6EE;

  /* Ink */
  --ink-900:#000619;
  --ink-700:#2A334F;
  --ink-500:#5A6380;
  --ink-400:#8891AB;

  /* On navy */
  --on-navy-1:rgba(255,255,255,0.96);
  --on-navy-2:rgba(255,255,255,0.72);
  --on-navy-3:rgba(255,255,255,0.48);
  --on-navy-4:rgba(255,255,255,0.16);
  --on-navy-hair:rgba(255,255,255,0.08);

  /* Semantic */
  --bg: var(--navy-950);
  --surface: var(--navy-800);
  --text: var(--on-navy-1);
  --muted: var(--on-navy-2);
  --muted-2: var(--on-navy-3);
  --border: var(--on-navy-hair);

  /* Elevation */
  --shadow-1: 0 1px 2px rgba(0,0,0,0.40);
  --shadow-2: 0 6px 18px rgba(0,0,0,0.35);
  --shadow-3: 0 18px 40px rgba(0,0,0,0.45);

  /* Radii */
  --r-sm:4px; --r-md:8px; --r-lg:12px; --r-xl:20px; --r-pill:9999px;

  /* Layout */
  --container: 1160px;
  --gutter: 24px;

  /* Motion */
  --t-fast:150ms; --t:200ms; --t-slow:250ms; --ease: ease-in-out;

  /* Fonts */
  --font-display: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.001ms !important; animation-duration: 0.001ms !important; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
::selection { background: rgba(48,64,240,0.4); color: #fff; }

/* Scrollbars */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--navy-950); }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.10); border-radius: 9999px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.18); }

/* Focus */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 3px solid rgba(48,64,240,0.55);
  outline-offset: 2px;
  border-radius: 8px;
}

.skip-link {
  position: absolute; left: -9999px; top: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 14px;
  border-radius: var(--r-md);
  z-index: 1000;
}
.skip-link:focus { left: 8px; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 var(--gutter); }

/* ===== Typography ===== */
.kicker {
  font-family: var(--font-mono);
  letter-spacing: 0.22em;
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  font-weight: 500;
  margin: 0 0 16px;
}
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: #fff;
  letter-spacing: -0.01em;
  text-wrap: balance;
  line-height: 1.08;
}
h1 { font-size: clamp(40px, 5vw, 72px); line-height: 1.02; letter-spacing: -0.02em; font-weight: 500; margin: 0 0 20px; }
h1.display { font-size: clamp(56px, 7vw, 104px); }
h2 { font-size: clamp(28px, 3.4vw, 44px); font-weight: 600; letter-spacing: -0.015em; line-height: 1.06; margin: 0 0 14px; }
h3 { font-size: 22px; font-weight: 600; margin: 0 0 10px; line-height: 1.2; }
h4 { font-size: 18px; font-weight: 600; margin: 0 0 8px; line-height: 1.25; }
p { margin: 0 0 12px; line-height: 1.55; }
.subhead { color: var(--muted); font-size: 17px; line-height: 1.5; margin: 0 0 32px; max-width: 58ch; }
.accent { color: var(--blue-400); }

/* ===== Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(0, 6, 25, 0.78);
  border-bottom: 1px solid var(--border);
  transition: background var(--t) var(--ease);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 14px 0;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  text-decoration: none; color: #fff;
}
.brand-mark { width: 28px; height: 28px; display: block; }
.brand-name {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.02em;
  font-size: 20px;
  color: #fff;
  line-height: 1;
}
.site-nav ul {
  list-style: none; display: flex; gap: 4px; padding: 0; margin: 0;
  align-items: center;
}
.site-nav a {
  text-decoration: none;
  color: var(--muted);
  font-family: var(--font-display);
  font-weight: 500; font-size: 14px;
  padding: 8px 12px; border-radius: 8px;
  transition: background var(--t), color var(--t);
  white-space: nowrap;
}
.site-nav a:hover { color: #fff; background: rgba(255,255,255,0.04); }
.site-nav a[aria-current="page"] { color: #fff; background: rgba(255,255,255,0.06); }
.site-nav .nav-sep { width: 1px; height: 22px; background: rgba(255,255,255,0.12); margin: 0 8px; }

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.24);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 9px 14px;
  border-radius: 9999px;
  cursor: pointer;
}

@media (max-width: 960px) {
  .nav-toggle { display: inline-flex; align-items: center; }
  .site-nav { display: none; width: 100%; }
  .site-nav[data-open="true"] {
    display: block;
    border-top: 1px solid var(--border);
    padding: 16px 0 20px;
  }
  .site-nav ul { flex-direction: column; align-items: stretch; gap: 4px; }
  .site-nav .btn { align-self: flex-start; margin-top: 6px; }
  .site-nav .nav-sep { display: none; }
  .header-inner { flex-wrap: wrap; }
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  border-radius: 9999px;
  padding: 12px 20px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
  line-height: 1;
  letter-spacing: -0.005em;
  border: 1px solid transparent;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  transition: transform var(--t), box-shadow var(--t), background var(--t), border-color var(--t);
}
.btn-primary {
  color: #fff;
  background: var(--blue-500);
  box-shadow: var(--shadow-2);
}
.btn-primary:hover { background: var(--blue-400); transform: translateY(-1px); box-shadow: var(--shadow-3); }
.btn-primary:active { background: var(--blue-600); transform: none; box-shadow: none; }
.btn-secondary {
  background: transparent;
  border-color: rgba(255,255,255,0.24);
  color: #fff;
}
.btn-secondary:hover { background: rgba(255,255,255,0.08); transform: translateY(-1px); }
.btn-secondary.on-light { border-color: #CFD4E0; color: var(--ink-900); }
.btn-secondary.on-light:hover { background: rgba(0,6,25,0.04); }

/* ===== Hero ===== */
.hero {
  position: relative; overflow: hidden;
  background: radial-gradient(900px 500px at 15% 30%, rgba(48,64,240,0.14), transparent 65%), var(--navy-950);
  color: var(--on-navy-1);
  padding: 112px 0 88px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.hero.small { padding: 72px 0 56px; }
.hero .container { position: relative; z-index: 1; }
.hero h1 { max-width: 18ch; }
.hero p.lead { color: var(--muted); font-size: 18px; line-height: 1.5; max-width: 52ch; margin: 0 0 32px; }
.hero.small p.lead { font-size: 16px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }

/* Construction lines — thin diagonals in top-right corner of hero */
.construction-lines {
  position: absolute; top: 0; right: 0;
  width: 55%; max-width: 820px; height: 100%;
  pointer-events: none; opacity: 0.32;
}

/* ===== Sections ===== */
.section { padding: 96px 0; }
.section.tight { padding: 64px 0; }
.section.light { background: var(--paper); color: var(--ink-900); }
.section.light h1, .section.light h2, .section.light h3 { color: var(--ink-900); }
.section.light .kicker { color: var(--ink-500); }
.section.light .subhead { color: var(--ink-500); }
.section.band {
  background: linear-gradient(180deg, var(--navy-950) 0%, var(--navy-900) 100%);
}

.section-header {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 40px; flex-wrap: wrap; margin-bottom: 40px;
}
.section-header > div:first-child { max-width: 720px; }

/* ===== Grid layouts ===== */
.grid { display: grid; gap: 20px; }
.grid.cols-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid.cols-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid.cols-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

/* ===== Cards ===== */
.card {
  background: var(--navy-800);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: var(--r-lg);
  padding: 24px;
  box-shadow: var(--shadow-2);
  color: var(--on-navy-1);
}
.card-glass {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.12);
}
.card h3 { margin: 0 0 10px; font-size: 18px; }
.card p { color: var(--muted); font-size: 14px; margin: 0; }
.card .card-num {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.2em;
  color: var(--blue-300); text-transform: uppercase; margin-bottom: 14px;
}
.card .meta {
  margin-top: 16px; font-family: var(--font-mono); font-size: 12px;
  color: rgba(255,255,255,0.56); letterspacing: 0.06em; display: flex;
  gap: 10px; flex-wrap: wrap; align-items: center;
}

/* ===== Pills ===== */
.pill {
  display: inline-flex; align-items: center;
  padding: 4px 10px;
  border-radius: 9999px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.16);
  color: rgba(255,255,255,0.82);
  font-family: var(--font-mono);
  font-size: 11px; font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1;
}
.pill.brand {
  background: rgba(48,64,240,0.14);
  border-color: rgba(48,64,240,0.40);
  color: var(--blue-300);
}

/* ===== Numbered stages (adoption journey) ===== */
.stages { border-top: 1px solid var(--border); }
.stage {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  align-items: start;
  gap: 28px;
  padding: 32px 16px;
  border-bottom: 1px solid var(--border);
  transition: background var(--t);
  text-decoration: none; color: inherit;
}
.stage:hover { background: rgba(255,255,255,0.02); }
.stage .idx {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.2em;
  color: var(--muted-2); padding-top: 4px; text-transform: uppercase;
}
.stage:hover .idx { color: var(--blue-300); }
.stage h3 { margin: 0; font-size: 22px; color: #fff; }
.stage-head { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; flex-wrap: wrap; }
.stage p { color: var(--muted); font-size: 16px; line-height: 1.55; max-width: 60ch; margin: 0; }
.stage .kpis {
  margin-top: 16px; display: flex; gap: 18px; flex-wrap: wrap;
  font-family: var(--font-mono); font-size: 12px; color: rgba(255,255,255,0.56);
  letter-spacing: 0.04em; text-transform: uppercase;
}
.stage .arr {
  color: rgba(255,255,255,0.32); font-family: var(--font-mono); font-size: 14px;
  padding-top: 4px; transition: color var(--t), transform var(--t);
}
.stage:hover .arr { color: var(--blue-300); transform: translateX(4px); }
@media (max-width: 720px) {
  .stage { grid-template-columns: 1fr; gap: 14px; }
}

/* ===== Metrics ===== */
.metric {
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 28px 24px;
}
.metric .num {
  font-family: var(--font-display); font-weight: 500; font-size: 48px;
  letter-spacing: -0.03em; line-height: 1; color: #fff;
  display: flex; align-items: baseline; gap: 6px;
}
.metric .num .unit { font-size: 22px; color: var(--blue-300); }
.metric .delta {
  margin-top: 8px; font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--blue-300);
}
.metric .cap { margin-top: 12px; font-size: 14px; color: rgba(255,255,255,0.64); line-height: 1.4; }

/* ===== Testimonials ===== */
.testimonial .marks {
  font-family: var(--font-display); font-size: 34px; font-weight: 500;
  color: var(--blue-500); line-height: 0.6; margin-bottom: 12px;
}
.testimonial blockquote {
  margin: 0; font-family: var(--font-display); font-weight: 500;
  font-size: 17px; line-height: 1.45; color: #fff; letter-spacing: -0.005em;
}
.testimonial .quote-meta {
  margin-top: 18px; color: rgba(255,255,255,0.48);
  font-size: 12px; font-family: var(--font-mono);
  letter-spacing: 0.08em; text-transform: uppercase;
}

/* ===== Inline link / read more ===== */
.inline-link {
  color: var(--blue-300);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  display: inline-flex; align-items: center; gap: 6px;
}
.inline-link .arr { transition: transform var(--t); }
.inline-link:hover .arr { transform: translateX(4px); }

/* ===== Client row ===== */
.clients-row {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; padding: 28px 0; flex-wrap: wrap;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.clients-row .label {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--muted-2);
}
.clients-row .names { display: flex; gap: 48px; flex-wrap: wrap; align-items: center; }
.clients-row .names span {
  font-family: var(--font-display); font-weight: 600; font-size: 16px;
  letter-spacing: -0.005em; color: rgba(255,255,255,0.56);
}

/* ===== CTA band ===== */
.cta-band {
  position: relative; overflow: hidden;
  background: linear-gradient(180deg, var(--navy-900) 0%, var(--navy-950) 100%);
  padding: 96px 0;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.cta-inner {
  position: relative; z-index: 1;
  display: flex; align-items: center; justify-content: space-between;
  gap: 32px; flex-wrap: wrap;
}
.cta-inner > div { max-width: 640px; }
.cta-band h2 { margin: 0 0 12px; }
.cta-band p { color: var(--muted); font-size: 17px; line-height: 1.5; max-width: 56ch; margin: 0; }

/* ===== Report teaser ===== */
.report-teaser {
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, var(--navy-800) 0%, var(--navy-900) 100%);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 44px;
  display: grid; grid-template-columns: minmax(0,1.2fr) minmax(0,1fr);
  gap: 40px; align-items: center;
}
.report-teaser .glow {
  position: absolute; top: -80px; right: -60px; width: 360px; height: 360px;
  background: radial-gradient(circle, rgba(48,64,240,0.25), transparent 65%);
  pointer-events: none;
}
.report-teaser > * { position: relative; z-index: 1; }
@media (max-width: 820px) { .report-teaser { grid-template-columns: 1fr; padding: 32px; } }

.terminal {
  background: var(--navy-900);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  font-family: var(--font-mono); font-size: 13px;
  overflow: hidden;
}
.terminal .term-head {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--muted-2);
  font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase;
}
.terminal pre {
  margin: 0; padding: 16px 18px;
  color: rgba(255,255,255,0.88);
  font-family: var(--font-mono);
  font-size: 12.5px; line-height: 1.7;
  white-space: pre-wrap;
}

/* ===== Forms ===== */
.field { margin-bottom: 14px; }
label {
  display: block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  margin: 0 0 6px;
  color: var(--text);
}
input, textarea, select {
  width: 100%;
  padding: 11px 13px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.16);
  background: rgba(255,255,255,0.04);
  color: #fff;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.4;
  outline: none;
  transition: border-color var(--t), background var(--t);
}
input:focus, textarea:focus, select:focus {
  border-color: var(--blue-500);
}
textarea { min-height: 100px; resize: vertical; }
.form-note { font-size: 13px; color: var(--muted-2); margin: 12px 0 0; }
.form-success {
  background: rgba(48,64,240,0.08);
  border: 1px solid rgba(48,64,240,0.32);
  border-radius: 8px;
  padding: 20px 24px;
  color: #fff;
}
.form-success .tag {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--blue-300); margin-bottom: 8px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--navy-950);
  color: var(--muted);
  border-top: 1px solid var(--border);
  padding: 56px 0 32px;
}
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px; margin-bottom: 40px;
}
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-col .label {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--muted-2); margin-bottom: 4px;
  font-weight: 500;
}
.footer-col a {
  color: var(--muted); text-decoration: none; font-size: 14px;
  transition: color var(--t-fast);
}
.footer-col a:hover { color: #fff; }
.footer-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; color: #fff; text-decoration: none; }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 20px;
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  font-family: var(--font-mono); font-size: 12px;
  color: var(--muted-2);
}

/* ===== Utilities ===== */
.hr { height: 1px; background: var(--border); border: 0; margin: 40px 0; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* Case-study card */
.case {
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 32px;
  display: grid; grid-template-columns: minmax(0,1.4fr) minmax(0,1fr);
  gap: 40px; align-items: center;
}
@media (max-width: 820px) { .case { grid-template-columns: 1fr; } }
.case-kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.case-kpi {
  background: var(--navy-900); border: 1px solid var(--border);
  border-radius: 8px; padding: 18px 14px; text-align: center;
}
.case-kpi .v { font-family: var(--font-display); font-weight: 500; font-size: 28px; color: #fff; letter-spacing: -0.02em; line-height: 1; }
.case-kpi .l { margin-top: 8px; font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: rgba(255,255,255,0.56); }

/* Governance list */
.gov-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }
.gov-item {
  background: var(--navy-800); border: 1px solid rgba(255,255,255,0.10);
  border-radius: var(--r-lg); padding: 22px 24px;
  display: flex; align-items: flex-start; gap: 14px;
  color: #fff; font-family: var(--font-display); font-weight: 500; font-size: 16px;
  line-height: 1.35;
}
.gov-item .arr { color: var(--blue-500); font-family: var(--font-mono); font-size: 14px; margin-top: 2px; }

/* Checkmark list on cards */
.checklist { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.checklist li {
  font-size: 15px; color: rgba(255,255,255,0.88);
  display: flex; gap: 12px; align-items: baseline;
}
.checklist li::before {
  content: "→"; color: var(--blue-500); font-family: var(--font-mono); font-size: 12px;
}