/* Nexfend Secure: light-blue theme modelled on IBM Carbon (Plex type, Carbon blue/cool-gray palette).
   Local only: no external fonts or assets. */

/* IBM Plex (SIL OFL 1.1, self-hosted, see assets/fonts/OFL.txt) */
@font-face { font-family: "IBM Plex Sans"; font-style: normal; font-weight: 300; font-display: swap; src: url("../fonts/ibm-plex-sans-300.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Sans"; font-style: normal; font-weight: 400; font-display: swap; src: url("../fonts/ibm-plex-sans-400.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Sans"; font-style: normal; font-weight: 500; font-display: swap; src: url("../fonts/ibm-plex-sans-500.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Sans"; font-style: normal; font-weight: 600; font-display: swap; src: url("../fonts/ibm-plex-sans-600.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Mono"; font-style: normal; font-weight: 400; font-display: swap; src: url("../fonts/ibm-plex-mono-400.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Mono"; font-style: normal; font-weight: 500; font-display: swap; src: url("../fonts/ibm-plex-mono-500.woff2") format("woff2"); }

:root {
  --bg: #f5f8fc;
  --bg-deep: #e5edf8;
  --panel: #ffffff;
  --panel-strong: #ffffff;
  --panel-tint: #edf5ff;
  --line: #dde1e6;
  --line-strong: #c1c7cd;
  --ink: #121619;
  --ink-soft: #4d5358;
  --muted: #697077;
  --accent: #0f62fe;
  --accent-strong: #0043ce;
  --accent-soft: #d0e2ff;
  --cyan: #1192e8;
  --hot: #da1e28;
  --hot-soft: #fff1f1;
  --ok: #198038;
  --grad: linear-gradient(90deg, #0f62fe, #4589ff);
  --shadow-sm: 0 1px 2px rgba(18, 22, 25, .05);
  --shadow: 0 12px 32px -16px rgba(0, 29, 108, .22), 0 1px 3px rgba(18, 22, 25, .06);
  --radius: 8px;
  --radius-sm: 4px;
  --wrap: 1180px;
  --header-h: 68px;
  --font: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Consolas, monospace;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); -webkit-text-size-adjust: 100%; overflow-x: clip; max-width: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  color: var(--ink);
  background: var(--bg);
  overflow-x: clip;
  max-width: 100%;
}
img, svg, canvas { display: block; max-width: 100%; }
a { color: var(--accent-strong); text-underline-offset: 3px; }
a:hover { color: var(--accent); }
h1, h2, h3 { line-height: 1.2; margin: 0; letter-spacing: 0; font-weight: 600; }
p { margin: 0; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.wrap { width: min(var(--wrap), 100% - 32px); margin-inline: auto; }
.mono { font-family: var(--mono); }
.fine-print { font-size: .8rem; color: var(--muted); line-height: 1.5; }
.grad-text { color: var(--accent); }

/* Icons (lucide placeholders replaced by inline sprite <svg><use>) */
.icon-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
svg.lucide {
  width: 1.15em; height: 1.15em;
  flex: none;
  fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round;
}
i[data-lucide], i.icon { display: inline-flex; font-style: normal; }

/* Skip link */
.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 1000;
  padding: 10px 16px; border-radius: 4px;
  background: var(--ink); color: #fff; font-weight: 600; text-decoration: none;
  transition: top .15s;
}
.skip-link:focus { top: 12px; color: #fff; }

/* Announcement */
.announcement-bar {
  display: flex; align-items: center; justify-content: center; gap: 8px 18px; flex-wrap: wrap;
  padding: 8px 48px 8px 16px; position: relative;
  background: var(--ink); color: #d0e2ff; font-size: .82rem; text-align: center;
}
.announcement-bar strong { color: #fff; letter-spacing: .08em; }
.announcement-bar a { color: #78a9ff; font-weight: 600; text-decoration: none; }
.announcement-bar a:hover { color: #fff; text-decoration: underline; }
.announcement-bar button {
  position: absolute; right: 10px; top: 50%; transform: translateY(-50%);
  display: grid; place-items: center; width: 30px; height: 30px;
  border: 0; border-radius: 4px; background: transparent; color: #d0e2ff;
}
.announcement-bar button:hover { background: rgba(255, 255, 255, .12); }

/* Header + nav */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .86);
  backdrop-filter: saturate(1.4) blur(12px);
  -webkit-backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; gap: 18px; min-height: var(--header-h); }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); flex: none; }
.brand:hover { color: var(--ink); }
/* Typographic wordmark: NEX semibold + FEND light, tracked caps, thin accent rule beneath FEND */
.brand-name {
  display: inline-flex; align-items: baseline;
  font-size: 1.12rem; line-height: 1; font-weight: 600; letter-spacing: .24em;
  margin-right: -.24em; /* cancel trailing tracking so the word stays optically centred */
}
.brand-name span {
  position: relative; font-weight: 300; color: inherit;
}
.brand-name span::after {
  content: ""; position: absolute; left: 0; right: .24em; bottom: -6px;
  height: 2px; background: var(--accent);
  transform-origin: left; transition: transform .25s ease;
}
.brand:hover .brand-name span::after { transform: scaleX(.4); }

.status-pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 5px 12px; border-radius: 999px;
  border: 1px solid var(--line); background: var(--panel);
  font-family: var(--mono); font-size: .66rem; letter-spacing: .06em; color: var(--ink-soft);
  white-space: nowrap;
}
.status-pill > span:not(.pulse) + span { margin-left: 12px; }
.pulse {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--ok); flex: none;
  box-shadow: 0 0 0 0 rgba(25, 128, 56, .5); animation: pulse 2.2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(25, 128, 56, .45); }
  70% { box-shadow: 0 0 0 8px rgba(25, 128, 56, 0); }
  100% { box-shadow: 0 0 0 0 rgba(25, 128, 56, 0); }
}

.menu-toggle {
  display: none; margin-left: auto;
  width: 42px; height: 42px; place-items: center;
  border: 1px solid var(--line); border-radius: 4px; background: var(--panel); color: var(--ink);
}
.menu-toggle svg.lucide { width: 22px; height: 22px; }

.nav-links { display: flex; align-items: center; gap: 6px; margin-left: auto; }
.nav-direct-link, .nav-trigger {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 8px 12px; border-radius: 4px; border: 0; background: transparent;
  color: var(--ink-soft); font-weight: 600; font-size: .92rem; text-decoration: none;
}
.nav-direct-link:hover, .nav-trigger:hover, .nav-trigger[aria-expanded="true"] { background: var(--accent-soft); color: var(--ink); }
.nav-chevron svg.lucide, svg.lucide.nav-chevron { transition: transform .2s; }
.nav-trigger[aria-expanded="true"] .nav-chevron { transform: rotate(180deg); }
.nav-dropdown { position: relative; }
.nav-menu {
  position: absolute; top: calc(100% + 10px); left: 0; z-index: 10;
  width: 320px; padding: 10px;
  background: var(--panel-strong); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: grid; gap: 2px;
}
.nav-menu-kicker {
  padding: 6px 10px 8px; font-family: var(--mono); font-size: .68rem; letter-spacing: .1em;
  text-transform: uppercase; color: var(--muted);
}
.nav-menu a {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 10px; border-radius: 4px; text-decoration: none; color: var(--ink);
}
.nav-menu a:hover, .nav-menu a:focus-visible { background: var(--panel-tint); }
.nav-menu a > svg.lucide { margin-top: 3px; color: var(--accent); }
.nav-menu strong { display: block; font-size: .93rem; }
.nav-menu small { display: block; color: var(--muted); font-size: .8rem; line-height: 1.35; }

/* Buttons */
.button-primary, .button-quiet {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 42px; padding: 9px 18px; border-radius: 4px;
  font-weight: 500; font-size: .93rem; letter-spacing: .01em; text-decoration: none; white-space: nowrap;
  transition: background-color .15s, border-color .15s, color .15s;
}
.button-primary {
  border: 1px solid transparent; color: #fff; background: var(--accent);
}
.button-primary:hover { color: #fff; background: var(--accent-strong); }
.button-quiet {
  border: 1px solid var(--line-strong); color: var(--ink); background: var(--panel-strong);
}
.button-quiet:hover { color: var(--ink); border-color: var(--accent); background: var(--panel-tint); }
.button-primary:active { background: #002d9c; }

/* Hero */
.hero {
  position: relative; overflow: hidden; isolation: isolate;
  padding: 72px 0 56px;
  background:
    radial-gradient(900px 480px at 85% 10%, rgba(69, 137, 255, .12), transparent 60%),
    radial-gradient(700px 420px at 0% 100%, rgba(15, 98, 254, .08), transparent 60%),
    linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
}
#network-canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -1; opacity: .9; }
.grid-bg {
  position: absolute; inset: 0; z-index: -2; pointer-events: none;
  background-image:
    linear-gradient(rgba(15, 98, 254, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 98, 254, .07) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: radial-gradient(ellipse at 60% 40%, #000 25%, transparent 75%);
  mask-image: radial-gradient(ellipse at 60% 40%, #000 25%, transparent 75%);
}
.hero-moon { display: none; position: absolute; z-index: -1; right: -120px; top: -140px; width: 460px; height: 460px; pointer-events: none; }
.moon-core {
  position: absolute; inset: 90px; border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #ffffff, #d0e2ff 55%, rgba(166, 200, 255, 0) 72%);
  opacity: .8;
}
.moon-orbit {
  position: absolute; inset: 20px; border-radius: 50%;
  border: 1px dashed rgba(15, 98, 254, .28);
  animation: spin 60s linear infinite;
}
.moon-orbit::after {
  content: ""; position: absolute; top: 50%; left: -5px; width: 10px; height: 10px; border-radius: 50%;
  background: var(--cyan); box-shadow: 0 0 12px var(--cyan);
}
@keyframes spin { to { transform: rotate(360deg); } }

.hero-layout { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: 48px; align-items: center; }
.hero-kicker {
  display: inline-flex; align-items: center; gap: 10px; margin-bottom: 18px;
  font-family: var(--mono); font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; color: var(--accent-strong);
}
.hero-kicker i { width: 28px; height: 2px; background: var(--accent); }
.hero h1 { font-size: clamp(2.3rem, 4.8vw, 3.75rem); font-weight: 300; line-height: 1.12; letter-spacing: -.01em; }
.hero h1 .grad-text { display: block; }
.hero-copy { margin-top: 20px; max-width: 60ch; font-size: 1.08rem; color: var(--ink-soft); }
.pill-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px; border-radius: 999px;
  background: var(--panel-strong); border: 1px solid var(--line);
  font-size: .84rem; font-weight: 600; color: var(--ink-soft);
}
.pill i { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }

/* Hero dashboard */
.hero-system-map {
  padding: 16px; border-radius: 8px;
  background: rgba(255, 255, 255, .82); border: 1px solid var(--line);
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}
.system-map-head {
  display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap;
  margin-bottom: 12px; font-family: var(--mono); font-size: .66rem; letter-spacing: .08em; color: var(--muted);
}
.system-map-state { display: inline-flex; align-items: center; gap: 6px; color: var(--accent-strong); }
.system-map-state i { width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); }
.secure-dashboard {
  border-radius: var(--radius); background: var(--panel-strong); border: 1px solid var(--line);
  padding: 16px; display: grid; gap: 14px;
}
.dashboard-top { display: flex; justify-content: space-between; align-items: center; font-weight: 600; font-size: .92rem; }
.dashboard-period, .event-tag, .dashboard-events-title {
  font-family: var(--mono); font-size: .62rem; letter-spacing: .08em; font-weight: 600; color: var(--muted);
}
.dashboard-period { padding: 3px 8px; border-radius: 4px; background: var(--panel-tint); }
.dashboard-summary {
  display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 12px 14px; border-radius: 8px; background: var(--panel-tint); border: 1px solid var(--line);
}
.dashboard-label { display: block; font-size: .74rem; color: var(--muted); }
.dashboard-summary strong { font-size: 1rem; }
.dashboard-status { display: inline-flex; align-items: center; gap: 7px; font-size: .78rem; font-weight: 600; color: var(--ok); }
.dashboard-status i { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); }
.dashboard-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.dashboard-modules, .dashboard-events { display: grid; gap: 8px; align-content: start; }
.dashboard-module, .dashboard-event {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 10px; border-radius: 4px; border: 1px solid var(--line); background: var(--panel);
}
.dashboard-module > span:nth-child(2), .dashboard-event > span:first-of-type { flex: 1; min-width: 0; }
.dashboard-module strong, .dashboard-event strong { display: block; font-size: .82rem; line-height: 1.25; }
.dashboard-module small, .dashboard-event small { display: block; font-size: .7rem; color: var(--muted); line-height: 1.3; }
.dashboard-module-icon { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 4px; flex: none; }
.dashboard-module-icon.red { background: var(--hot-soft); color: var(--hot); }
.dashboard-module-icon.blue { background: var(--accent-soft); color: var(--accent-strong); }
.dashboard-check { color: var(--ok); }
.event-dot { width: 8px; height: 8px; border-radius: 50%; flex: none; }
.event-dot.red { background: var(--hot); box-shadow: 0 0 0 3px var(--hot-soft); }
.event-dot.blue { background: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.event-tag { padding: 2px 6px; border-radius: 4px; background: var(--panel-tint); border: 1px solid var(--line); }
.dashboard-footer {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  padding-top: 12px; border-top: 1px solid var(--line); font-size: .78rem; color: var(--ink-soft);
}
.dashboard-footer svg.lucide { color: var(--accent); }
.dashboard-divider { width: 1px; height: 14px; background: var(--line-strong); margin: 0 4px; }
.dashboard-disclaimer { margin-top: 10px; font-size: .72rem; color: var(--muted); text-align: center; }

/* Facts */
.metric-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin-top: 56px; }
.glass {
  background: rgba(255, 255, 255, .85); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.metric-card { padding: 18px 20px; }
.metric-value { font-size: 1.25rem; font-weight: 400; color: var(--ink); }
.metric-name { margin-top: 4px; font-size: .86rem; color: var(--muted); }

/* Sections */
.section { padding: 88px 0; }
.section + .section { border-top: 1px solid rgba(221, 225, 230, .6); }
.services-overview, .ai-section, .architecture-section, .calculator-section, .security-section { background: var(--panel); }
.section-head {
  display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 16px 48px; align-items: end;
  margin-bottom: 40px;
}
.section-label {
  margin-bottom: 10px;
  font-family: var(--mono); font-size: .74rem; letter-spacing: .1em; text-transform: uppercase; font-weight: 600;
  color: var(--accent-strong);
}
.section-title { font-size: clamp(1.85rem, 3.4vw, 2.75rem); font-weight: 300; line-height: 1.18; letter-spacing: -.005em; }
.section-sub { color: var(--ink-soft); font-size: 1.02rem; max-width: 56ch; }

/* Card base */
.service-overview-card, .cyber-card, .ai-risk-card, .analytics-card, .security-card, .trust-detail-card, .course-card, .gauge-card {
  background: var(--panel-strong); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.service-overview-card:hover, .cyber-card:hover, .ai-risk-card:hover, .analytics-card:hover, .course-card:hover {
  transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--line-strong);
}
.cyber-card > svg.lucide, .analytics-card > svg.lucide, .security-card > svg.lucide {
  width: 42px; height: 42px; padding: 10px; border-radius: 8px; margin-bottom: 16px;
  background: var(--accent-soft); color: var(--accent-strong); stroke-width: 1.8;
}
.cyber-card h3, .ai-risk-card h3, .analytics-card h3, .security-card h3 { font-size: 1.08rem; margin-bottom: 8px; }
.cyber-card p, .analytics-card p, .security-card p { color: var(--ink-soft); font-size: .93rem; }

/* Services overview */
.service-overview-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 16px; }
.service-overview-card { grid-column: span 2; display: flex; flex-direction: column; gap: 8px; padding: 14px 14px 18px; }
.service-overview-card:nth-child(4), .service-overview-card:nth-child(5) { grid-column: span 3; }
.service-image {
  width: 100%; height: auto; aspect-ratio: 420 / 150; object-fit: cover;
  border-radius: 4px; border: 1px solid var(--line); background: linear-gradient(135deg, var(--accent-soft), #f5f8fc); margin-bottom: 8px;
  color: var(--muted); font-size: .75rem;
}
.service-overview-card h3 { font-size: 1.2rem; padding-inline: 4px; }
.service-overview-card > p { padding-inline: 4px; color: var(--ink-soft); }
.service-meta { font-size: .86rem; line-height: 1.6; color: var(--ink-soft); flex: 1; }
.service-meta strong { color: var(--ink); }
.service-overview-card > .button-quiet, .service-overview-actions { margin: 8px 4px 0; align-self: flex-start; }
.service-overview-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.service-overview-note { margin-top: 18px; }

/* Section feature visuals */
.section-visual { margin: 0 0 28px; }
.section-visual img {
  width: 100%; height: auto; aspect-ratio: 1200 / 480;
  border-radius: 8px; border: 1px solid var(--line);
  background: linear-gradient(135deg, #f5f8fc, var(--accent-soft));
  box-shadow: var(--shadow);
}
.section-visual figcaption { margin-top: 10px; text-align: center; }

/* Cyber */
.cyber-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.cyber-card { padding: 24px; }
.framework-strip {
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px;
  margin-top: 28px; padding: 16px 18px; border-radius: var(--radius);
  background: var(--panel-tint); border: 1px solid var(--line);
}
.framework-strip strong { margin-right: 6px; font-size: .9rem; }
.framework-strip span {
  padding: 4px 10px; border-radius: 4px; background: var(--panel-strong); border: 1px solid var(--line);
  font-family: var(--mono); font-size: .74rem; color: var(--ink-soft);
}
.engagement-panel {
  display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 2fr); gap: 32px; align-items: center;
  margin-top: 28px; padding: 32px; border-radius: 8px;
  background: #001141; color: #d0e2ff;
}
.engagement-panel .section-label { color: #78a9ff; }
.engagement-panel h3 { font-size: 1.6rem; color: #fff; }
.engagement-panel .grad-text { color: #78a9ff; }
.engagement-steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.engagement-steps li {
  padding: 16px; border-radius: 8px; background: rgba(255, 255, 255, .06); border: 1px solid rgba(120, 169, 255, .2);
}
.engagement-steps span { font-family: var(--mono); font-size: .74rem; color: #78a9ff; }
.engagement-steps strong { display: block; margin: 4px 0 2px; color: #fff; }
.engagement-steps p { font-size: .86rem; color: #a6c8ff; }
.framework-note { margin-top: 16px; }

/* AI security */
.ai-mapping-note {
  margin: -16px 0 22px; padding-left: 12px; border-left: 3px solid var(--cyan);
  font-size: .88rem; color: var(--muted);
}
.ai-risk-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.ai-risk-card { padding: 22px; position: relative; overflow: hidden; }
.ai-risk-card::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--accent);
}
.ai-risk-card p { font-size: .9rem; color: var(--ink-soft); }
.ai-risk-card p + p { margin-top: 4px; }
.ai-risk-card strong { color: var(--ink); }
.ai-help {
  display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 32px; align-items: center;
  margin-top: 28px; padding: 32px; border-radius: 8px;
  background: var(--panel-tint); border: 1px solid var(--line);
}
.ai-help h3 { font-size: 1.5rem; margin-bottom: 10px; }
.ai-help p:not(.section-label) { color: var(--ink-soft); margin-bottom: 20px; }
.ai-help ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.ai-help li {
  display: flex; gap: 10px; align-items: flex-start;
  padding: 12px 14px; border-radius: 4px; background: var(--panel-strong); border: 1px solid var(--line);
  font-weight: 600; font-size: .93rem;
}
.ai-help li::before {
  content: ""; flex: none; width: 8px; height: 8px; margin-top: 8px; border-radius: 4px; background: var(--accent); transform: rotate(45deg);
}

/* Analytics */
.analytics-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.analytics-card { padding: 24px; }

/* Architecture */
.architecture-flow { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; position: relative; }
.arch-node {
  position: relative; text-align: left; display: grid; gap: 8px; align-content: start;
  padding: 20px; border-radius: var(--radius);
  background: var(--panel-strong); border: 1px solid var(--line); box-shadow: var(--shadow-sm);
  transition: border-color .2s, box-shadow .2s, transform .2s, background-color .2s;
}
.arch-node:not(:last-child)::after {
  content: ""; position: absolute; top: 50%; right: -16px; width: 12px; height: 12px;
  border-top: 2px solid var(--line-strong); border-right: 2px solid var(--line-strong);
  transform: translateY(-50%) rotate(45deg);
}
.arch-node:hover { border-color: var(--line-strong); transform: translateY(-2px); }
.arch-node[aria-expanded="true"] {
  border-color: var(--accent); background: linear-gradient(180deg, #ffffff, var(--panel-tint));
  box-shadow: 0 0 0 3px var(--accent-soft), var(--shadow);
}
.node-index { font-family: var(--mono); font-size: .68rem; letter-spacing: .1em; color: var(--muted); }
.node-icon {
  display: grid; place-items: center; width: 44px; height: 44px; border-radius: 8px;
  background: var(--accent-soft); color: var(--accent-strong);
}
.arch-node[aria-expanded="true"] .node-icon { background: var(--accent); color: #fff; }
.node-icon svg.lucide { width: 22px; height: 22px; }
.arch-node h3 { font-size: 1.05rem; }
.arch-node p { font-size: .85rem; color: var(--muted); }
.arch-detail {
  margin-top: 20px; padding: 20px 22px; border-radius: var(--radius);
  background: var(--panel-tint); border: 1px solid var(--line); border-left: 4px solid var(--accent);
}
.arch-detail strong { font-family: var(--mono); font-size: .78rem; letter-spacing: .08em; color: var(--accent-strong); }
.arch-detail p { margin-top: 6px; color: var(--ink-soft); }
.reference-note { margin-top: 12px; }

/* Simulator */
.demo-disclosure {
  margin: -16px 0 24px; padding: 12px 16px; border-radius: 4px;
  background: #fcf4d6; border: 1px solid #f1c21b; color: #684e00; font-size: .88rem;
}
.sim-layout { display: grid; grid-template-columns: minmax(0, .85fr) minmax(0, 1.4fr); gap: 20px; align-items: start; }
.control-panel {
  padding: 22px; border-radius: var(--radius);
  background: var(--panel-strong); border: 1px solid var(--line); box-shadow: var(--shadow-sm);
  display: grid; gap: 22px;
}
.panel-title { display: flex; justify-content: space-between; align-items: center; gap: 10px; font-weight: 600; }
.live-label { display: inline-flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: .66rem; letter-spacing: .08em; color: var(--ok); }
.control-group { display: grid; gap: 8px; }
.control-head { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; font-size: .9rem; font-weight: 600; }
.control-value { font-family: var(--mono); font-size: .85rem; color: var(--accent-strong); font-weight: 600; white-space: nowrap; }
.range-labels { display: flex; justify-content: space-between; font-size: .72rem; color: var(--muted); font-family: var(--mono); }

input[type="range"] {
  -webkit-appearance: none; appearance: none; width: 100%; height: 22px; background: transparent; margin: 0;
  --fill: 50%;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 6px; border-radius: 4px;
  background: linear-gradient(90deg, var(--accent) var(--fill), var(--line) var(--fill));
}
input[type="range"]::-moz-range-track { height: 6px; border-radius: 4px; background: var(--line); }
input[type="range"]::-moz-range-progress { height: 6px; border-radius: 4px; background: var(--accent); }
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none; width: 20px; height: 20px; margin-top: -7px; border-radius: 50%;
  background: #fff; border: 2px solid var(--accent); box-shadow: 0 2px 6px rgba(0, 29, 108, .25);
}
input[type="range"]::-moz-range-thumb {
  width: 16px; height: 16px; border-radius: 50%;
  background: #fff; border: 2px solid var(--accent); box-shadow: 0 2px 6px rgba(0, 29, 108, .25);
}
input[type="range"]:focus-visible { outline: none; }
input[type="range"]:focus-visible::-webkit-slider-thumb { box-shadow: 0 0 0 4px var(--accent-soft); }
input[type="range"]:focus-visible::-moz-range-thumb { box-shadow: 0 0 0 4px var(--accent-soft); }

.segmented { display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px; padding: 4px; border-radius: 4px; background: var(--panel-tint); border: 1px solid var(--line); }
.segmented button {
  padding: 7px 8px; border: 0; border-radius: 4px; background: transparent; font-weight: 600; font-size: .86rem; color: var(--ink-soft);
}
.segmented button:hover { color: var(--ink); }
.segmented button[aria-pressed="true"] { background: var(--panel-strong); color: var(--accent-strong); box-shadow: var(--shadow-sm); }

.trust-switch { display: flex; justify-content: space-between; align-items: center; gap: 12px; font-size: .92rem; }
.switch {
  position: relative; flex: none; width: 50px; height: 28px; padding: 0; border-radius: 999px;
  border: 1px solid var(--line-strong); background: var(--line); transition: background-color .2s;
}
.switch::after {
  content: ""; position: absolute; top: 3px; left: 3px; width: 20px; height: 20px; border-radius: 50%;
  background: #fff; box-shadow: 0 1px 4px rgba(18, 22, 25, .3); transition: transform .2s;
}
.switch[aria-checked="true"] { background: var(--accent); border-color: var(--accent); }
.switch[aria-checked="true"]::after { transform: translateX(22px); }
.sim-note { margin-top: -8px; }

.terminal-panel { border-radius: var(--radius); overflow: hidden; background: #161616; border: 1px solid #393939; box-shadow: var(--shadow); }
.terminal-head {
  display: flex; justify-content: space-between; align-items: center; gap: 10px;
  padding: 10px 14px; background: #262626; border-bottom: 1px solid #393939;
  font-family: var(--mono); font-size: .68rem; letter-spacing: .08em; color: #8d8d8d;
}
.terminal-title { display: inline-flex; align-items: center; gap: 10px; }
.terminal-dots { display: inline-flex; gap: 5px; }
.terminal-dots i { width: 9px; height: 9px; border-radius: 50%; background: #fa4d56; }
.terminal-dots i:nth-child(2) { background: #f1c21b; }
.terminal-dots i:nth-child(3) { background: #42be65; }
.terminal-demo { color: #82cfff; }
.terminal-log {
  height: 300px; overflow-y: auto; padding: 12px 14px;
  font-family: var(--mono); font-size: .78rem; line-height: 1.7; color: #d0e2ff;
  scrollbar-width: thin; scrollbar-color: #525252 transparent;
}
.log-line { display: flex; gap: 10px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; animation: log-in .3s ease-out; }
.log-time { color: #6f6f6f; flex: none; }
.log-level { flex: none; min-width: 6ch; font-weight: 600; }
.log-line.info .log-level { color: #82cfff; }
.log-line.warn .log-level { color: #f1c21b; }
.log-line.block .log-level { color: #ff8389; }
.log-line.ok .log-level { color: #42be65; }
.log-msg { overflow: hidden; text-overflow: ellipsis; }
@keyframes log-in { from { opacity: 0; transform: translateY(4px); } }

.sim-gauges { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-top: 12px; }
.gauge-card { padding: 14px; }
.gauge-label { font-size: .72rem; color: var(--muted); }
.gauge-value { margin: 4px 0 10px; font-weight: 600; font-size: 1.2rem; }
.gauge-value small { font-size: .72rem; font-weight: 600; color: var(--muted); }
progress.gauge-bar {
  -webkit-appearance: none; appearance: none; display: block; width: 100%; height: 6px; border: 0; border-radius: 4px;
  background: var(--line); overflow: hidden; color: var(--accent);
}
progress.gauge-bar::-webkit-progress-bar { background: var(--line); border-radius: 4px; }
progress.gauge-bar::-webkit-progress-value { background: var(--grad); border-radius: 4px; transition: width .3s; }
progress.gauge-bar::-moz-progress-bar { background: var(--accent); border-radius: 4px; }

/* Calculator */
.calculator { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 0; overflow: hidden; background: var(--panel-strong); }
.calc-inputs { padding: 28px; display: grid; gap: 22px; }
.calc-result {
  padding: 28px; display: grid; grid-template-columns: 1fr 1fr; gap: 14px; align-content: start;
  background: #001141; color: #d0e2ff;
}
.result-large { grid-column: 1 / -1; padding: 20px; border-radius: 8px; background: rgba(255, 255, 255, .07); border: 1px solid rgba(120, 169, 255, .25); }
.result-small { padding: 16px; border-radius: 8px; background: rgba(255, 255, 255, .05); border: 1px solid rgba(120, 169, 255, .18); }
.result-label { font-size: .78rem; color: #a6c8ff; }
.result-value { font-size: 1.5rem; font-weight: 600; color: #fff; font-variant-numeric: tabular-nums; word-break: break-word; }
.result-large .result-value { font-size: clamp(2rem, 4vw, 2.8rem); font-weight: 300; color: #fff; }
.calc-result .fine-print { color: #a6c8ff; }
.calc-assumptions { grid-column: 1 / -1; font-size: .76rem; line-height: 1.55; color: #a6c8ff; }

/* Academy */
.academy-filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.filter-btn {
  padding: 8px 16px; border-radius: 999px; border: 1px solid var(--line-strong); background: var(--panel-strong);
  font-weight: 600; font-size: .88rem; color: var(--ink-soft);
}
.filter-btn:hover { border-color: var(--accent); color: var(--ink); }
.filter-btn[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: #fff; }
.course-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.course-card { padding: 22px; display: flex; flex-direction: column; gap: 10px; }
.course-card.is-hidden { display: none; }
.course-top { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.course-category { padding: 3px 10px; border-radius: 999px; background: var(--accent-soft); color: var(--accent-strong); font-size: .74rem; font-weight: 600; }
.course-card[data-category="funded"] .course-category { background: #defbe6; color: var(--ok); }
.course-card[data-category="executive"] .course-category { background: #f6f2ff; color: #6929c4; }
.course-duration { font-family: var(--mono); font-size: .64rem; letter-spacing: .08em; color: var(--muted); }
.course-card h3 { font-size: 1.12rem; }
.course-card > p { color: var(--ink-soft); font-size: .92rem; flex: 1; }
.course-details { border-top: 1px dashed var(--line); padding-top: 10px; }
.course-details summary {
  display: inline-flex; align-items: center; gap: 6px; cursor: pointer; list-style: none;
  font-weight: 600; font-size: .86rem; color: var(--accent-strong);
}
.course-details summary::-webkit-details-marker { display: none; }
.course-details summary svg.lucide { transition: transform .2s; }
.course-details[open] summary svg.lucide { transform: rotate(45deg); }
.course-details ul { margin: 8px 0 0; padding-left: 18px; font-size: .86rem; color: var(--ink-soft); }
.course-bottom { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; padding-top: 6px; }
.course-bottom .button-quiet { min-height: 36px; padding: 6px 12px; font-size: .85rem; }
.course-note { margin-top: 18px; }

/* Security & legal */
.security-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.security-card { padding: 24px; }
.trust-detail-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin-top: 16px; }
.trust-detail-card { padding: 24px; background: var(--panel-tint); }
.trust-detail-card h3 { font-size: 1.2rem; margin-bottom: 10px; }
.trust-detail-card p:not(.section-label) { color: var(--ink-soft); font-size: .92rem; margin-top: 8px; }
.trust-detail-card ul { margin: 0; padding-left: 18px; color: var(--ink-soft); font-size: .92rem; display: grid; gap: 4px; }
.trust-detail-card li strong { color: var(--ink); }
.legal-details {
  margin-top: 16px; padding: 18px 20px; border-radius: var(--radius);
  border: 1px dashed var(--line-strong); font-size: .88rem; line-height: 1.7; color: var(--ink-soft);
}
.legal-details strong { color: var(--ink); }

/* CTA */
.cta-band {
  padding: 64px 0;
  background: #002d9c;
  color: #fff;
}
.cta-inner { display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; }
.cta-band .section-label { color: #d0e2ff; }
.cta-band h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 300; max-width: 26ch; }
.cta-band .button-primary { background: #fff; color: var(--accent-strong); }
.cta-band .button-primary:hover { background: var(--panel-tint); }
.cta-band .button-primary:hover { color: var(--ink); }

/* Footer */
.site-footer { padding: 56px 0 28px; background: #001141; color: #a6c8ff; }
.site-footer .brand, .site-footer .brand:hover { color: #fff; }
.site-footer .brand-name span::after { background: #78a9ff; }
.footer-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: 32px; padding-bottom: 32px; border-bottom: 1px solid rgba(120, 169, 255, .15); }
.footer-statement { margin-top: 14px; max-width: 46ch; font-size: .92rem; }
.footer-facts { display: flex; flex-wrap: wrap; gap: 8px; align-content: start; justify-content: flex-end; }
.fact-chip {
  padding: 5px 10px; border-radius: 4px; border: 1px solid rgba(120, 169, 255, .25);
  font-family: var(--mono); font-size: .68rem; letter-spacing: .06em; color: #d0e2ff;
}
.footer-bottom { display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap; padding-top: 24px; }
.legal-line { font-size: .8rem; max-width: 60ch; }
.site-footer a { color: #d0e2ff; }
.site-footer a:hover { color: #fff; }
.footer-links { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 16px; font-size: .86rem; }
.footer-links a { text-decoration: none; }
.footer-links a:hover { text-decoration: underline; }
.site-footer .button-quiet { background: transparent; color: #fff; border-color: rgba(120, 169, 255, .4); min-height: 36px; padding: 6px 14px; }
.site-footer .button-quiet:hover { background: rgba(255, 255, 255, .08); border-color: #78a9ff; }

/* Dialogs */
dialog { color: var(--ink); }
dialog::backdrop { background: rgba(18, 22, 25, .5); backdrop-filter: blur(3px); -webkit-backdrop-filter: blur(3px); }
.modal-backdrop {
  padding: 0; border: 0; background: transparent; overflow: visible;
  width: min(580px, calc(100vw - 32px)); max-height: calc(100dvh - 32px);
}
.modal {
  position: relative; padding: 32px; border-radius: 8px;
  background: var(--panel-strong); border: 1px solid var(--line); box-shadow: 0 30px 60px -20px rgba(18, 22, 25, .45);
  max-height: calc(100dvh - 32px); overflow-y: auto;
}
dialog.modal { width: min(520px, calc(100vw - 32px)); }
dialog[open] .modal, dialog.modal[open] { animation: modal-in .22s ease-out; }
@keyframes modal-in { from { opacity: 0; transform: translateY(10px) scale(.98); } }
.modal h2 { font-size: 1.6rem; padding-right: 32px; }
.modal-intro { margin-top: 8px; color: var(--ink-soft); }
.modal-close {
  position: absolute; top: 14px; right: 14px; display: grid; place-items: center; width: 36px; height: 36px;
  border: 1px solid var(--line); border-radius: 4px; background: var(--panel); color: var(--ink);
}
.modal-close:hover { background: var(--panel-tint); border-color: var(--line-strong); }
.modal-form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 22px; }
.form-field { display: grid; gap: 6px; }
.form-field.full, .modal-form > .button-primary, .modal-note, .modal-status { grid-column: 1 / -1; }
.form-field label { font-size: .86rem; font-weight: 600; }
.optional-note { font-weight: 400; color: var(--muted); }
.form-field input, .form-field select, .form-field textarea {
  width: 100%; padding: 10px 12px; border-radius: 4px;
  border: 1px solid var(--line-strong); background: var(--panel);
  transition: border-color .15s, box-shadow .15s;
}
.form-field textarea { min-height: 96px; resize: vertical; }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); background: #fff;
}
.form-field [aria-invalid="true"] { border-color: var(--hot); box-shadow: 0 0 0 3px var(--hot-soft); }
.modal-form > .button-primary { justify-self: start; }
.modal-note { font-size: .78rem; color: var(--muted); }
.modal-status { font-size: .86rem; font-weight: 600; min-height: 1.2em; }
.modal-status.is-error { color: var(--hot); }
.modal-status.is-ok { color: var(--ok); }
.course-syllabus { margin: 16px 0 22px; padding-left: 20px; color: var(--ink-soft); display: grid; gap: 6px; }

/* Toast + scroll top */
.toast {
  position: fixed; left: 50%; bottom: 24px; z-index: 300;
  transform: translate(-50%, 20px); opacity: 0; pointer-events: none;
  max-width: calc(100vw - 32px); padding: 12px 18px; border-radius: 4px;
  background: var(--ink); color: #fff; font-size: .9rem; font-weight: 600; box-shadow: var(--shadow);
  transition: opacity .25s, transform .25s;
}
.toast.is-visible { opacity: 1; transform: translate(-50%, 0); }
.scroll-top {
  position: fixed; right: 20px; bottom: 20px; z-index: 90;
  display: grid; place-items: center; width: 46px; height: 46px; border-radius: 8px;
  border: 1px solid var(--line-strong); background: var(--panel-strong); color: var(--accent-strong); box-shadow: var(--shadow);
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: opacity .2s, transform .2s, visibility .2s;
}
.scroll-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.scroll-top:hover { background: var(--panel-tint); }

/* Privacy page */
.privacy-copy { max-width: 780px; }
.privacy-copy .section-sub { margin: 12px 0 32px; }
.privacy-copy h2 { font-size: 1.25rem; margin: 32px 0 10px; }
.privacy-copy p { color: var(--ink-soft); margin-bottom: 12px; }
.privacy-copy .fine-print { margin-top: 32px; }
.site-header .nav > .button-primary:last-child { margin-left: auto; }

/* Responsive */
@media (max-width: 1080px) {
  .status-pill { display: none; }
  .hero-layout { grid-template-columns: 1fr; }
  .hero-system-map { max-width: 640px; }
  .metric-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .service-overview-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .service-overview-card, .service-overview-card:nth-child(4), .service-overview-card:nth-child(5) { grid-column: auto; }
  .service-overview-card:last-child { grid-column: 1 / -1; }
  .engagement-panel, .ai-help { grid-template-columns: 1fr; }
  .sim-layout, .calculator { grid-template-columns: minmax(0, 1fr); }
  .course-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .architecture-flow { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .arch-node::after { display: none; }
}

@media (max-width: 860px) {
  .menu-toggle { display: grid; }
  .nav-links {
    position: absolute; left: 0; right: 0; top: 100%;
    display: none; flex-direction: column; align-items: stretch; gap: 4px;
    padding: 12px 16px 18px; margin: 0;
    background: var(--panel-strong); border-bottom: 1px solid var(--line); box-shadow: var(--shadow);
    max-height: calc(100dvh - var(--header-h)); overflow-y: auto;
  }
  .nav-links.is-open { display: flex; }
  .nav-direct-link, .nav-trigger { width: 100%; padding: 12px; }
  .nav-trigger .nav-chevron { margin-left: auto; }
  .nav-menu { position: static; width: auto; box-shadow: none; border: 0; padding: 0 0 0 12px; background: transparent; }
  .nav-links > .button-primary { margin-top: 8px; }
  .section-head { grid-template-columns: 1fr; }
  .cyber-grid, .ai-risk-grid, .analytics-grid, .security-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-facts { justify-content: flex-start; }
}

@media (max-width: 620px) {
  .section { padding: 64px 0; }
  .hero { padding: 48px 0 40px; }
  .hero-moon { display: none; }
  .hero-actions > * { flex: 1 1 100%; }
  .dashboard-columns { grid-template-columns: 1fr; }
  .metric-grid { margin-top: 36px; gap: 10px; }
  .metric-card { padding: 14px; }
  .metric-value { font-size: 1.02rem; }
  .service-overview-grid, .cyber-grid, .ai-risk-grid, .analytics-grid, .security-grid,
  .trust-detail-grid, .course-grid, .architecture-flow { grid-template-columns: 1fr; }
  .service-overview-card:last-child { grid-column: auto; }
  .engagement-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .engagement-panel, .ai-help { padding: 22px; }
  .sim-gauges { grid-template-columns: minmax(0, 1fr); }
  .terminal-log { height: 240px; font-size: .72rem; }
  .calc-inputs, .calc-result { padding: 20px; }
  .calc-result { grid-template-columns: minmax(0, 1fr); }
  .modal { padding: 24px 20px; }
  .modal-form { grid-template-columns: 1fr; }
  .announcement-bar { font-size: .76rem; }
  .announcement-bar > span { display: none; }
  /* Keep detailed illustrations legible: pan inside the frame instead of shrinking. */
  .section-visual { overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: 8px; }
  .section-visual img { min-width: 760px; }
  .section-visual figcaption { position: sticky; left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  #network-canvas { display: none; }
}

@media print {
  .site-header, .announcement-bar, #network-canvas, .scroll-top, .toast, .cta-band, dialog { display: none !important; }
  body { background: #fff; }
}

/* =====================================================================
   Premium landing upgrade (dark hero, trust bar, why, sectors, FAQ)
   ===================================================================== */

/* Gradient display accent, site-wide */
.grad-text {
  background: linear-gradient(92deg, #0f62fe 0%, #1192e8 55%, #33b1ff 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: var(--accent);
}

/* Primary button: a little more lift and depth */
.button-primary { box-shadow: 0 10px 24px -14px rgba(15, 98, 254, .9); }
.button-primary:hover { box-shadow: 0 14px 30px -14px rgba(0, 67, 206, .95); transform: translateY(-1px); }

/* ---------- Dark cinematic hero ---------- */
.hero-dark {
  padding: 96px 0 72px;
  color: #eaf1ff;
  background:
    radial-gradient(1100px 560px at 82% -8%, rgba(51, 177, 255, .22), transparent 60%),
    radial-gradient(760px 520px at -5% 108%, rgba(15, 98, 254, .28), transparent 62%),
    linear-gradient(180deg, #00082a 0%, #001141 45%, #001d6c 100%);
}
.hero-glow {
  position: absolute; z-index: -1; top: -10%; right: -6%;
  width: 520px; height: 520px; border-radius: 50%; pointer-events: none;
  background: radial-gradient(circle at 50% 50%, rgba(51, 177, 255, .35), transparent 68%);
  filter: blur(10px); opacity: .7;
}
.hero-dark .grid-bg {
  background-image:
    linear-gradient(rgba(120, 169, 255, .10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 169, 255, .10) 1px, transparent 1px);
}
.hero-dark .hero-kicker { color: #7cc4ff; }
.hero-dark .hero-kicker i { background: #33b1ff; }
.hero-dark h1 { font-weight: 600; letter-spacing: -.02em; font-size: clamp(2.5rem, 5.2vw, 4rem); color: #f6f9ff; }
.hero-dark .hero-copy { color: #aec6f2; }
.hero-dark .grad-text {
  background: linear-gradient(92deg, #58c0ff 0%, #78a9ff 60%, #a6c8ff 100%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-dark .pill {
  background: rgba(120, 169, 255, .10); border-color: rgba(120, 169, 255, .28); color: #cfe0ff;
  backdrop-filter: blur(4px);
}
.hero-dark .pill i { background: #33b1ff; }
.hero-dark .button-quiet {
  background: rgba(255, 255, 255, .04); border-color: rgba(120, 169, 255, .4); color: #eaf1ff;
}
.hero-dark .button-quiet:hover { background: rgba(120, 169, 255, .14); border-color: #78a9ff; color: #fff; }
.hero-trustline {
  margin-top: 26px; display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  font-size: .82rem; color: #8fb2ec; letter-spacing: .01em;
}
.hero-trustline svg.lucide { width: 16px; height: 16px; color: #33b1ff; }

/* Hero product card reads as a crisp light UI on the dark field */
.hero-dark .hero-system-map {
  background: rgba(255, 255, 255, .97);
  border-color: rgba(255, 255, 255, .6);
  box-shadow: 0 40px 90px -40px rgba(0, 10, 50, .9), 0 0 0 1px rgba(120, 169, 255, .18);
  color: var(--ink);
}
.hero-dark .hero-system-map .dashboard-top,
.hero-dark .hero-system-map .dashboard-summary strong,
.hero-dark .hero-system-map .dashboard-module strong,
.hero-dark .hero-system-map .dashboard-event strong { color: var(--ink); }
.hero-dark .system-map-head { color: var(--muted); }

/* Hero metric tiles on dark */
.hero-dark .metric-grid { margin-top: 64px; }
.hero-dark .glass {
  background: rgba(120, 169, 255, .07); border-color: rgba(120, 169, 255, .22);
  box-shadow: none; backdrop-filter: blur(6px);
}
.hero-dark .metric-value { color: #f6f9ff; font-weight: 500; }
.hero-dark .metric-name { color: #9fbdf0; }

/* ---------- Trust / standards bar ---------- */
.trust-bar { background: #00082a; color: #9fbdf0; padding: 30px 0; }
.trust-bar-inner { display: flex; flex-direction: column; align-items: center; gap: 16px; text-align: center; }
.trust-bar-label {
  font-family: var(--mono); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: #6f93cf;
}
.trust-logos {
  display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 14px 30px;
}
.trust-logos span {
  font-weight: 600; font-size: .98rem; letter-spacing: .01em; color: #c9dcff; opacity: .85;
  white-space: nowrap; transition: opacity .2s, color .2s;
}
.trust-logos span:hover { opacity: 1; color: #fff; }
.trust-bar-note { color: #5f82bd; }

/* ---------- Why Nexfend ---------- */
.why-section { background: var(--bg); }
.why-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.why-card {
  position: relative; overflow: hidden;
  padding: 24px 22px 26px; border-radius: var(--radius);
  background: linear-gradient(180deg, #ffffff, var(--panel-tint));
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.why-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--accent-soft); }
.why-index {
  position: absolute; top: 14px; right: 18px;
  font-family: var(--mono); font-size: 1.5rem; font-weight: 500; color: var(--accent-soft);
}
.why-icon {
  display: grid; place-items: center; width: 46px; height: 46px; border-radius: 10px; margin-bottom: 16px;
  background: var(--accent); color: #fff; box-shadow: 0 12px 26px -14px rgba(15, 98, 254, .9);
}
.why-icon svg.lucide { width: 24px; height: 24px; stroke-width: 1.9; }
.why-card h3 { font-size: 1.08rem; margin-bottom: 8px; }
.why-card p { color: var(--ink-soft); font-size: .92rem; }

/* ---------- Sector band ---------- */
.sector-band {
  margin-top: 40px; padding-top: 28px; border-top: 1px solid var(--line);
  display: flex; align-items: center; gap: 18px 24px; flex-wrap: wrap;
}
.sector-band-label {
  font-family: var(--mono); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--muted); flex: none;
}
.sector-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.sector-tags span {
  padding: 8px 16px; border-radius: 999px;
  border: 1px solid var(--line-strong); background: var(--panel);
  font-size: .86rem; font-weight: 600; color: var(--ink-soft);
  transition: border-color .2s, color .2s, background-color .2s;
}
.sector-tags span:hover { border-color: var(--accent); color: var(--accent-strong); background: var(--panel-tint); }

/* ---------- FAQ ---------- */
.faq-section { background: var(--bg-deep); }
.faq-list { display: grid; gap: 12px; max-width: 880px; }
.faq-item {
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel-strong);
  box-shadow: var(--shadow-sm); overflow: hidden; transition: border-color .2s, box-shadow .2s;
}
.faq-item[open] { border-color: var(--accent-soft); box-shadow: var(--shadow); }
.faq-item summary {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 18px 20px; cursor: pointer; list-style: none;
  font-weight: 600; font-size: 1.02rem; color: var(--ink);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--accent-strong); }
.faq-item summary svg.lucide {
  flex: none; width: 22px; height: 22px; padding: 3px; border-radius: 6px;
  background: var(--accent-soft); color: var(--accent-strong); transition: transform .25s;
}
.faq-item[open] summary svg.lucide { transform: rotate(45deg); }
.faq-body { padding: 0 20px 20px; }
.faq-body p { color: var(--ink-soft); font-size: .96rem; max-width: 70ch; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .why-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 860px) {
  .hero-dark { padding: 72px 0 56px; }
  .hero-dark h1 { font-size: clamp(2.2rem, 7vw, 3rem); }
}
@media (max-width: 560px) {
  .why-grid { grid-template-columns: 1fr; }
  .trust-logos { gap: 12px 20px; }
  .trust-logos span { font-size: .9rem; }
  .sector-band { gap: 14px; }
  .faq-item summary { font-size: .96rem; padding: 16px; }
}

/* Mobile overflow guards for interactive panels (simulator + planning tool) */
.sim-layout, .calculator, .control-panel, .calc-inputs, .calc-result, .control-group, .sim-gauges { min-width: 0; }
input[type="range"] { min-width: 0; max-width: 100%; }
.control-head { flex-wrap: wrap; }

/* Sector line (replaces sector pills) */
.sector-line {
  margin-top: 36px; padding-top: 28px; border-top: 1px solid var(--line);
  font-size: 1.02rem; color: var(--ink-soft); max-width: 70ch;
}
.sector-line .sector-band-label {
  display: inline; margin-right: 6px; color: var(--accent-strong);
  font-family: var(--mono); font-size: .74rem; letter-spacing: .08em; text-transform: uppercase; font-weight: 600;
}

/* =====================================================================
   Lenis smooth scroll, animated icons, animated illustrations, reveal
   ===================================================================== */

/* ---- Lenis ---- */
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-smooth [data-lenis-prevent] { overscroll-behavior: contain; }
.lenis.lenis-stopped { overflow: clip; }

/* ---- Scroll reveal (only when JS adds html.nf-js; content visible otherwise) ---- */
html.nf-js .nf-reveal {
  opacity: 0; transform: translateY(22px);
  transition: opacity .7s ease, transform .7s cubic-bezier(.2, .7, .2, 1);
  transition-delay: var(--nf-d, 0ms); will-change: opacity, transform;
}
html.nf-js .nf-reveal.nf-in { opacity: 1; transform: none; }

/* ---- Animated icons ---- */
svg.lucide { transition: transform .3s cubic-bezier(.2, .7, .2, 1), color .2s; }
.cyber-card:hover > svg.lucide,
.analytics-card:hover > svg.lucide,
.security-card:hover > svg.lucide,
.product-card:hover .product-icon svg.lucide,
.nav-menu a:hover > svg.lucide { transform: scale(1.12) rotate(-4deg); }
.why-icon { transition: transform .3s cubic-bezier(.2, .7, .2, 1); }
.why-card:hover .why-icon { transform: translateY(-3px) rotate(-4deg); }

@media (prefers-reduced-motion: no-preference) {
  svg.lucide:has(use[href="#icon-radar"]) { transform-origin: 50% 50%; animation: nf-rotate 9s linear infinite; }
  svg.lucide:has(use[href="#icon-sparkles"]) { transform-origin: 50% 50%; animation: nf-twinkle 3.2s ease-in-out infinite; }
  svg.lucide:has(use[href="#icon-crosshair"]) { transform-origin: 50% 50%; animation: nf-pulse 2.8s ease-in-out infinite; }
  svg.lucide:has(use[href="#icon-scan-eye"]) { transform-origin: 50% 50%; animation: nf-pulse 3.6s ease-in-out infinite; }
  svg.lucide:has(use[href="#icon-shield-check"]) { transform-origin: 50% 50%; animation: nf-breathe 4s ease-in-out infinite; }
  svg.lucide:has(use[href="#icon-database"]) { transform-origin: 50% 50%; animation: nf-breathe 4.6s ease-in-out infinite; }
  svg.lucide:has(use[href="#icon-network"]),
  svg.lucide:has(use[href="#icon-workflow"]),
  svg.lucide:has(use[href="#icon-git-branch"]) { animation: nf-float 5s ease-in-out infinite; }
  svg.lucide:has(use[href="#icon-flask-conical"]) { animation: nf-float 4.5s ease-in-out infinite; }
}
@keyframes nf-rotate { to { transform: rotate(360deg); } }
@keyframes nf-twinkle { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: .55; transform: scale(.9) rotate(8deg); } }
@keyframes nf-pulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.12); } }
@keyframes nf-breathe { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.06); } }
@keyframes nf-float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-3px); } }

/* ---- Animated illustrations (live-analysis sweep matching each section's story) ---- */
.section-visual { position: relative; }
.section-visual img { transition: transform .5s cubic-bezier(.2, .7, .2, 1); }
.section-visual:hover img { transform: scale(1.015); }
.section-visual::after {
  content: ""; position: absolute; inset: 0; pointer-events: none; border-radius: inherit;
  background: linear-gradient(100deg, transparent 42%, rgba(17, 146, 232, .12) 50%, transparent 58%);
  background-size: 220% 100%; mix-blend-mode: multiply;
}
@media (prefers-reduced-motion: no-preference) {
  .section-visual::after { animation: nf-sweep 7s ease-in-out infinite; }
}
@keyframes nf-sweep { 0% { background-position: 150% 0; } 100% { background-position: -50% 0; } }
.service-overview-card .service-image { transition: transform .5s cubic-bezier(.2, .7, .2, 1); }
.service-overview-card:hover .service-image { transform: scale(1.03); }

@media (prefers-reduced-motion: reduce) {
  .nf-reveal { opacity: 1 !important; transform: none !important; }
  .section-visual::after { display: none; }
}

/* =====================================================================
   Error page (404 / generic)
   ===================================================================== */
.error-page {
  min-height: 100vh; min-height: 100svh;
  display: flex; flex-direction: column; color: #eaf1ff; overflow: hidden;
  background:
    radial-gradient(1100px 560px at 82% -8%, rgba(51, 177, 255, .20), transparent 60%),
    radial-gradient(760px 520px at -5% 108%, rgba(15, 98, 254, .26), transparent 62%),
    linear-gradient(180deg, #00082a 0%, #001141 45%, #001d6c 100%);
}
.error-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 20px 0; }
.error-page .brand, .error-page .brand:hover { color: #fff; }
.error-page .brand-name span::after { background: #78a9ff; }
.error-main { flex: 1; display: grid; place-items: center; text-align: center; padding: 40px 16px 72px; }
.error-inner { max-width: 660px; }
.error-kicker {
  font-family: var(--mono); letter-spacing: .16em; text-transform: uppercase;
  color: #7cc4ff; font-size: .78rem; margin-bottom: 8px;
}
.error-code {
  font-family: var(--mono); font-weight: 500; line-height: .88; letter-spacing: -.02em;
  font-size: clamp(5.5rem, 24vw, 12rem);
  background: linear-gradient(92deg, #58c0ff 0%, #78a9ff 55%, #a6c8ff 100%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.error-page h1 { font-weight: 600; font-size: clamp(1.5rem, 4vw, 2.3rem); color: #f6f9ff; margin: 14px 0 12px; }
.error-page .error-lead { color: #aec6f2; max-width: 46ch; margin: 0 auto 28px; font-size: 1.04rem; }
.error-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.error-page .button-quiet { background: rgba(255, 255, 255, .04); border-color: rgba(120, 169, 255, .4); color: #eaf1ff; }
.error-page .button-quiet:hover { background: rgba(120, 169, 255, .14); border-color: #78a9ff; color: #fff; }
.error-links {
  margin-top: 34px; padding-top: 22px; border-top: 1px solid rgba(120, 169, 255, .18);
  display: flex; gap: 8px 22px; justify-content: center; flex-wrap: wrap; font-size: .9rem;
}
.error-links a { color: #cfe0ff; text-decoration: none; }
.error-links a:hover { color: #fff; text-decoration: underline; }