:root {
  --bg: #0a0e1a;
  --bg-elev: #10182a;
  --bg-card: #101625;
  --border: #253044;
  --border-strong: #3a4760;
  --text: #e6eaf2;
  --text-dim: #a4aec1;
  --accent: #ac99ff;
  --accent-2: #6ee1de;
  --accent-3: #f1bb92;
  --danger: #fca5a5;
  --radius: 10px;
  --radius-lg: 16px;
  --gradient: linear-gradient(135deg, #a78bfa 0%, #22d3ee 60%, #f472b6 100%);
  --font: 'Inter', 'Segoe UI', system-ui, sans-serif;
  --font-display: 'Space Grotesk', 'Inter', system-ui, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
a { color: inherit; text-decoration: none; }
a, button { -webkit-tap-highlight-color: transparent; }
a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible,
select:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--accent-2);
  outline-offset: 5px;
}
img, svg { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; }
button, summary { cursor: pointer; }
main { flex: 1; }
h1, h2, h3 { font-family: var(--font-display); line-height: 1.2; font-weight: 600; text-wrap: balance; }
h1 { letter-spacing: -0.045em; }
h2 { letter-spacing: -0.03em; }
p { color: var(--text-dim); }
p + p { margin-top: 18px; }
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.skip-link {
  position: fixed; top: 10px; left: 16px; z-index: 200;
  padding: 10px 20px; color: var(--bg); background: var(--accent-2);
  transform: translateY(-160%); border-radius: 6px;
}
.skip-link:focus { transform: translateY(0); }

/* Shared navigation */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10, 14, 26, 0.96);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(16px);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; padding-block: 18px; gap: 24px; }
.logo { direction: ltr; unicode-bidi: isolate; display: flex; align-items: center; gap: 12px; font-family: var(--font-display); font-size: 1.25rem; font-weight: 700; flex-shrink: 0; }
.logo-mark { height: 36px; width: auto; filter: brightness(0) invert(1); }
.grad, .logo-text { color: var(--accent); }
@supports ((background-clip: text) or (-webkit-background-clip: text)) {
  .grad, .logo-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    -webkit-box-decoration-break: clone;
    box-decoration-break: clone;
  }
}
.nav { display: flex; align-items: center; gap: 4px; }
.nav a { padding: 10px 12px; font-size: 0.9rem; color: var(--text-dim); border-radius: 6px; }
.nav a:hover, .nav a.active { color: var(--text); background: var(--bg-elev); }
.nav a.active { box-shadow: inset 0 -2px var(--accent-2); }
.header-actions { display: flex; align-items: center; gap: 10px; }
.lang-switch { flex-shrink: 0; }
.lang-select { width: 120px; min-height: 44px; padding: 8px; border: 1px solid var(--border-strong); border-radius: 7px; color: var(--text); background: var(--bg-elev); font-family: 'Inter', 'Noto Sans Arabic', 'Noto Sans SC', sans-serif; font-size: 0.82rem; cursor: pointer; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.menu-toggle { display: none; align-items: center; justify-content: center; width: 44px; height: 44px; color: var(--text); background: transparent; border: 1px solid var(--border-strong); border-radius: 7px; }

/* Typography and page rhythm */
.section { padding: 88px 0; }
.section-tinted { background: #0e1422; border-block: 1px solid var(--border); }
.eyebrow { display: inline-block; color: var(--accent-2); font-size: 0.74rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; }
.eyebrow::before { content: '/'; margin-inline-end: 10px; color: var(--accent); }
.section-head { max-width: 730px; margin-bottom: 40px; }
.section-head h2 { font-size: clamp(1.9rem, 3.2vw, 2.7rem); margin: 16px 0; }
.section-head p { font-size: 1.04rem; }
.page-hero {
  padding: 76px 0 64px;
  border-bottom: 1px solid var(--border);
  background:
    radial-gradient(ellipse at 10% 0%, rgba(124, 92, 255, 0.13), transparent 65%),
    radial-gradient(ellipse at 100% 20%, rgba(34, 211, 238, 0.08), transparent 60%);
}
.page-hero h1 { font-size: clamp(2.2rem, 4.6vw, 3.6rem); max-width: 24ch; margin: 20px 0 24px; }
.page-hero .lead { font-size: 1.12rem; max-width: 72ch; }
.page-hero .hero-cta { margin-top: 28px; }
.hero {
  padding: 76px 0 0;
  background:
    radial-gradient(ellipse at 5% 0%, rgba(124, 92, 255, 0.13), transparent 60%),
    radial-gradient(ellipse at 90% 25%, rgba(34, 211, 238, 0.09), transparent 55%);
}
.hero-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 60px; align-items: center; }
.hero h1 { font-size: clamp(2.7rem, 4.6vw, 4rem); margin: 22px 0; max-width: 17ch; }
.hero .lead { font-size: 1.08rem; max-width: 58ch; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 13px 20px; gap: 9px; font-size: 0.92rem; font-weight: 600; border: 1px solid transparent; border-radius: 7px; text-align: center; transition: background 0.2s, border-color 0.2s; }
.btn-primary { color: var(--bg); background: var(--gradient); box-shadow: 0 8px 28px -10px rgba(124, 92, 255, 0.35); }
.btn-primary:hover { border-color: var(--accent-2); box-shadow: 0 10px 32px -8px rgba(124, 92, 255, 0.45); }
.btn-ghost { border-color: var(--border-strong); color: var(--text); background: transparent; }
.btn-ghost:hover { background: var(--bg-elev); border-color: var(--accent-2); }
.btn:disabled { cursor: wait; opacity: 0.65; }
.microcopy { margin-top: 14px; font-size: 0.84rem; }
.text-link { display: inline-block; color: var(--accent-2); font-size: 0.93rem; font-weight: 600; padding-block: 8px; }
.text-link::after { content: ' ↗'; margin-inline-start: 6px; }
.text-link:hover { text-decoration: underline; text-underline-offset: 5px; }
.specialty-strip { display: flex; flex-wrap: wrap; gap: 16px 36px; padding: 27px 0; margin-top: 64px; border-block: 1px solid var(--border); color: var(--text-dim); font-size: 0.87rem; }
.specialty-strip span::before { content: '+'; margin-inline-end: 12px; color: var(--accent-2); }

/* The diagram describes our analysis; it is not a client system. */
.system-map { min-width: 0; padding: 26px; border: 1px solid var(--border-strong); border-radius: var(--radius); background-color: #101a2a; background-image: radial-gradient(#314057 0.6px, transparent 0.6px); background-size: 18px 18px; }
.map-caption { font-family: var(--font-display); font-size: 0.69rem; letter-spacing: 0.1em; color: var(--text-dim); }
.map-top { display: flex; justify-content: center; margin-top: 30px; }
.map-node { padding: 10px 20px; border: 1px solid var(--border-strong); background: var(--bg-elev); font-size: 0.86rem; }
.map-connector { height: 30px; width: 1px; background: var(--accent-2); margin: 0 auto; }
.map-core { position: relative; display: flex; flex-direction: column; align-items: center; padding: 24px 16px; margin: 0 36px; background: #132737; border: 1px solid #527b85; border-radius: 4px; }
.map-rune { height: 48px; width: auto; filter: brightness(0) invert(1); margin-bottom: 12px; }
.map-core strong { font-family: var(--font-display); font-size: 1.3rem; }
.map-core span { color: var(--text-dim); font-size: 0.75rem; }
.map-branches { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-top: 30px; }
.map-branches > div { position: relative; border-top: 2px solid var(--accent-2); padding: 10px 6px; background: var(--bg-elev); text-align: center; }
.map-branches > div::before { content: ''; position: absolute; height: 30px; width: 1px; background: var(--border-strong); bottom: 100%; left: 50%; }
.map-branches strong { display: block; font-size: 0.72rem; font-weight: 600; }
.map-branches span { display: block; font-size: 0.69rem; color: var(--text-dim); margin-top: 5px; }
.figure-note { font-size: 0.77rem; color: var(--text-dim); margin-top: 22px; }

/* Different layouts reflect different kinds of information. */
.index-number { font-family: var(--font-display); color: var(--accent-2); font-size: 0.82rem; letter-spacing: 0.08em; }
.problem-list { border-top: 1px solid var(--border); }
.problem-list article { display: grid; grid-template-columns: 34px minmax(0, 1fr) 185px; gap: 24px; align-items: center; padding: 30px 0; border-bottom: 1px solid var(--border); }
.problem-list h3 { font-size: 1.4rem; margin-bottom: 10px; }
.problem-list p { max-width: 70ch; font-size: 0.95rem; }
.problem-list .text-link { justify-self: end; }
.expertise-list article { display: grid; grid-template-columns: 34px 1fr 1.4fr; gap: 28px; padding: 26px 0; border-bottom: 1px solid var(--border); align-items: baseline; }
.expertise-list h3 { font-size: 1.3rem; }
.expertise-list p { font-size: 0.96rem; }
.split-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; margin-bottom: 40px; }
.split-intro .section-head { margin: 0; }
.content-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
.container > p + .content-grid { margin-top: 32px; }
.card { padding: 30px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg-card); }
.card .index-number { display: block; margin-bottom: 22px; }
.card h3 { font-size: 1.35rem; margin-bottom: 14px; }
.card p { font-size: 0.96rem; }
.steps { list-style: none; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 26px; counter-reset: step; }
.step { border-top: 1px solid var(--border-strong); padding-top: 22px; counter-increment: step; }
.step::before { content: counter(step, decimal-leading-zero); color: var(--accent-2); font-family: var(--font-display); display: block; margin-bottom: 22px; font-size: 0.85rem; }
.step h3 { font-size: 1.12rem; margin-bottom: 12px; }
.step p { font-size: 0.92rem; }
.steps:has(> :last-child:nth-child(3)) { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.about-grid > *, .contact-grid > *, .hero-grid > * { min-width: 0; }
.engagement-note { padding: 32px; background: var(--bg-elev); border: 1px solid var(--border-strong); border-inline-start: 3px solid var(--accent-2); border-radius: 0 var(--radius) var(--radius) 0; }
.engagement-note h2 { margin: 16px 0 24px; font-size: 1.7rem; }
.team-profile h2 { margin-bottom: 8px; }
.team-profile .profile-role { color: var(--accent-2); font-size: 0.87rem; }
.profile-links { display: flex; flex-wrap: wrap; gap: 8px 24px; margin-top: 20px; }
.offer-facts { margin: 26px 0; }
.offer-facts > div { display: grid; grid-template-columns: 180px minmax(0, 1fr); gap: 28px; padding: 18px 0; border-bottom: 1px solid var(--border); }
.offer-facts dt { font-size: 0.87rem; color: var(--accent-2); font-weight: 500; }
.offer-facts dd { color: var(--text-dim); font-size: 0.95rem; }
.engagement-note .offer-facts > div, .report-example .offer-facts > div { grid-template-columns: 1fr; gap: 5px; padding: 14px 0; }
.report-example { padding: 30px; border-radius: var(--radius); border: 1px solid #465069; background: linear-gradient(145deg, #172135, #111929); }
.report-heading { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin: 28px 0 18px; }
.severity { color: var(--accent-3); background: #3c2c25; border: 1px solid #655044; border-radius: 4px; padding: 4px 8px; font-size: 0.68rem; letter-spacing: 0.06em; }
.report-example h3 { font-size: 1.4rem; }
.report-example .offer-facts { margin-block: 14px; }
.scenario-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px; }
.scenario-list article { border-top: 2px solid var(--accent); padding-top: 25px; }
.scenario-list h3 { font-size: 1.3rem; }
.scenario-list .offer-facts > div { grid-template-columns: 1fr; gap: 6px; }
.faq { margin-top: 48px; border-top: 1px solid var(--border); }
.faq details { border-bottom: 1px solid var(--border); padding: 22px 0; }
.faq summary { font-weight: 500; padding-inline-end: 12px; }
.faq details p { margin-top: 14px; max-width: 85ch; font-size: 0.95rem; }
.cta-banner {
  margin-top: 64px; display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 28px; padding: 40px;
  border: 1px solid #4e476b; border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(124, 92, 255, 0.16), rgba(34, 211, 238, 0.08) 60%, rgba(244, 114, 182, 0.08)), var(--bg-elev);
}
.cta-banner > div { flex: 1 1 380px; }
.cta-banner h2 { font-size: clamp(1.6rem, 2.6vw, 2rem); margin-bottom: 12px; }
.cta-banner p { max-width: 67ch; font-size: 0.95rem; }

/* Contact form and real business details */
.contact-grid { display: grid; grid-template-columns: 0.85fr 1.3fr; gap: 48px; align-items: start; }
.contact-info { padding: 26px; border: 1px solid var(--border); border-radius: var(--radius); }
.contact-info h3 { font-size: 1.25rem; margin-bottom: 20px; }
.info-item { display: flex; gap: 14px; padding: 20px 0; border-bottom: 1px solid var(--border); }
.info-item:last-child { border-bottom: 0; }
.info-item .icon { color: var(--accent-2); flex-shrink: 0; margin-top: 5px; }
.info-item .label { color: var(--text-dim); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 7px; }
.info-item .value { font-size: 0.94rem; overflow-wrap: anywhere; }
.info-item a:hover { text-decoration: underline; text-underline-offset: 4px; }
.contact-form { padding: 32px; display: grid; gap: 20px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg-elev); }
.contact-form h2 { font-size: 1.5rem; }
.form-intro { margin-top: -8px; font-size: 0.87rem; }
.field-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field label { font-size: 0.86rem; color: var(--text-dim); }
.req { color: var(--accent-3); }
.field input, .field select, .field textarea { width: 100%; min-width: 0; padding: 12px 14px; border-radius: 6px; border: 1px solid var(--border-strong); color: var(--text); background: var(--bg); font-size: 1rem; }
.field textarea { min-height: 155px; resize: vertical; }
.field input::placeholder, .field textarea::placeholder { color: #8e9aaf; opacity: 1; }
.error { display: block; font-size: 0.8rem; color: var(--danger); }
.field .error { min-height: 1.3em; }
.field .invalid { border-color: var(--danger); }
.checkbox { display: flex; gap: 12px; color: var(--text-dim); font-size: 0.82rem; align-items: start; cursor: pointer; }
.checkbox input { flex-shrink: 0; width: 18px; height: 18px; margin-top: 4px; accent-color: var(--accent-2); }
.checkbox input.invalid { outline: 2px solid var(--danger); outline-offset: 2px; }
.consent-field .error:not(:empty) { margin-top: 8px; }
.form-status { display: none; padding: 14px 16px; border: 1px solid; border-radius: 6px; font-size: 0.9rem; }
.form-status.show { display: block; }
.form-status.ok { background: #0b3028; border-color: #33715e; color: #98edd0; }
.form-status.err { background: #341d28; border-color: #975d6b; color: var(--danger); }

/* Footer */
.site-footer { padding: 52px 0 24px; border-top: 1px solid var(--border); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 0.7fr 0.7fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-col h5 { font-family: var(--font-display); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.09em; margin-bottom: 16px; }
.footer-col p, .footer-col > a { color: var(--text-dim); font-size: 0.86rem; padding: 5px 0; display: block; overflow-wrap: anywhere; }
.footer-col p + p { margin: 0; }
.footer-col a:hover { color: var(--accent-2); }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 22px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; color: var(--text-dim); font-size: 0.75rem; }

@media (max-width: 1050px) {
  .nav a { padding-inline: 9px; font-size: 0.83rem; }
  .header-inner { gap: 14px; }
  .hero-grid { gap: 30px; }
  .map-branches { grid-template-columns: 1fr; gap: 0; }
  .map-branches > div { text-align: start; display: flex; justify-content: space-between; align-items: baseline; gap: 10px; padding: 8px 12px; border-top: 1px solid var(--border); }
  .map-branches > div::before { display: none; }
  .map-branches span { margin-top: 0; }
}
@media (max-width: 1120px) {
  .menu-toggle { display: inline-flex; }
  .nav { display: none; position: absolute; top: 100%; left: 0; right: 0; padding: 14px 24px 24px; border-bottom: 1px solid var(--border); background: var(--bg); }
  .nav.open { display: flex; flex-direction: column; align-items: stretch; }
  .nav a { padding: 13px 16px; font-size: 0.95rem; }
}
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; gap: 42px; }
  .hero h1 { max-width: 21ch; }
  .hero .lead { max-width: 70ch; }
  .system-map { width: 100%; max-width: 580px; }
  .map-branches { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
  .map-branches > div { display: block; text-align: center; border-top: 2px solid var(--accent-2); padding: 10px 6px; }
  .map-branches > div::before { display: block; }
  .map-branches span { margin-top: 5px; }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 30px; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .contact-form { order: -1; }
  .contact-info { max-width: none; }
  .problem-list article { grid-template-columns: 28px minmax(0, 1fr); gap: 18px; }
  .problem-list .text-link { grid-column: 2; justify-self: start; }
  .expertise-list article { grid-template-columns: 28px 1fr 1.3fr; gap: 18px; }
  .scenario-list { grid-template-columns: 1fr; }
  .scenario-list .offer-facts > div { grid-template-columns: 150px 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .split-intro { gap: 30px; }
}
@media (max-width: 600px) {
  .container { padding-inline: 20px; }
  .header-inner { padding-block: 13px; gap: 10px; }
  .logo { font-size: 1.1rem; gap: 8px; }
  .logo-mark { height: 30px; }
  .lang-select { width: 105px; }
  .header-actions { gap: 8px; }
  .section { padding-block: 56px; }
  .hero { padding-top: 46px; }
  .hero h1 { font-size: clamp(2.5rem, 9vw, 3.3rem); }
  .hero .lead, .page-hero .lead { font-size: 1rem; }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .specialty-strip { gap: 14px; margin-top: 40px; padding-block: 22px; font-size: 0.78rem; }
  .specialty-strip span { flex-basis: calc(50% - 7px); }
  .specialty-strip span::before { margin-inline-end: 6px; }
  .system-map { padding: 20px; }
  .map-core { margin-inline: 20px; }
  .map-branches { grid-template-columns: 1fr; gap: 0; }
  .map-branches > div { text-align: start; display: flex; justify-content: space-between; gap: 12px; border-top: 1px solid var(--border); padding: 10px; }
  .map-branches > div::before { display: none; }
  .map-branches span { margin: 0; }
  .page-hero { padding: 46px 0; }
  .page-hero h1 { font-size: clamp(2.1rem, 8vw, 2.8rem); }
  .section-head { margin-bottom: 30px; }
  .content-grid, .split-intro, .steps, .steps:has(> :last-child:nth-child(3)) { grid-template-columns: 1fr; }
  .expertise-list article { grid-template-columns: 28px minmax(0, 1fr); }
  .expertise-list p { grid-column: 2; }
  .card, .engagement-note, .report-example { padding: 24px; }
  .offer-facts > div, .scenario-list .offer-facts > div { grid-template-columns: 1fr; gap: 7px; }
  .cta-banner { padding: 26px; margin-top: 44px; }
  .cta-banner > div { flex-basis: 100%; }
  .cta-banner .btn { width: 100%; }
  .contact-form, .contact-info { padding: 22px; }
  .field-row { grid-template-columns: 1fr; gap: 16px; }
  .footer-grid { gap: 30px; }
  .footer-col:first-child, .footer-col:last-child { grid-column: 1 / -1; }
}
@media (max-width: 360px) {
  .container { padding-inline: 16px; }
  .logo { font-size: 1rem; }
  .logo-mark { height: 26px; }
  .lang-select { width: 94px; font-size: 0.75rem; padding-inline: 5px; }
  .header-actions { gap: 6px; }
  .eyebrow { font-size: 0.67rem; }
  .specialty-strip span { flex-basis: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}
@media (forced-colors: active) {
  .grad, .logo-text { background: none; color: CanvasText; }
  .btn-primary { background: ButtonFace; color: ButtonText; border-color: ButtonText; }
}

/* Script-specific typography and bidirectional content. */
html:lang(ar) { --font: 'Noto Sans Arabic', 'Inter', sans-serif; --font-display: 'Noto Sans Arabic', 'Inter', sans-serif; }
html:lang(zh) { --font: 'Noto Sans SC', 'Inter', sans-serif; --font-display: 'Noto Sans SC', 'Inter', sans-serif; }
:lang(ar) :is(h1, h2, h3, .eyebrow, .map-caption, .index-number, .severity, .info-item .label, .footer-col h5),
:lang(zh) :is(h1, h2, h3, .eyebrow, .map-caption, .index-number, .severity, .info-item .label, .footer-col h5) { letter-spacing: normal; text-transform: none; }
:lang(ar) :is(h1, h2, h3) { line-height: 1.55; }
:lang(zh) :is(h1, h2, h3) { line-height: 1.4; }
:dir(rtl) .engagement-note { border-radius: var(--radius) 0 0 var(--radius); }
:dir(rtl) .btn-arrow { transform: scaleX(-1); }
:dir(rtl) .text-link::after { content: ' ↖'; }
a[href^="mailto:"], .map-core strong, .index-number { direction: ltr; unicode-bidi: isolate; }
html[dir="rtl"] .field :is(input, textarea):placeholder-shown:not([type="email"]) { direction: rtl; }

/* Keep the bot trap out of layout and keyboard navigation. */
.honeypot { display: none; }