:root {
  --bg: #f4f7fa;
  --surface: #ffffff;
  --ink: #0f1728;
  --muted: #657184;
  --line: #dfe5ec;
  --dark: #08111f;
  --dark-2: #0d1b2d;
  --accent: #54e1b9;
  --accent-dark: #087f65;
  --accent-soft: #dffaf2;
  --blue: #66a8ff;
  --radius: 22px;
  --shadow: 0 24px 70px rgba(8, 17, 31, .12);
  --container: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
button { font: inherit; }
.container { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; }
.skip-link { position: fixed; top: 8px; left: 8px; z-index: 999; transform: translateY(-150%); background: white; padding: 8px 12px; border-radius: 8px; }
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(244, 247, 250, .9);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(223, 229, 236, .88);
}
.header-inner { min-height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; justify-content: center; flex: 0 0 auto; text-decoration: none; }
.brand-logo { width: 64px; height: 64px; display: block; object-fit: contain; }
.desktop-nav { display: flex; align-items: center; gap: 26px; }
.desktop-nav a { color: #344054; font-size: 13px; font-weight: 700; text-decoration: none; }
.desktop-nav a:hover { color: var(--accent-dark); }
.header-actions { display: flex; align-items: center; gap: 12px; }
.language-switch { border: 0; background: transparent; color: var(--muted); cursor: pointer; padding: 7px; font-weight: 800; }
.language-switch .lang-en { color: var(--ink); }
.language-switch[aria-pressed="true"] .lang-en { color: var(--muted); }
.language-switch[aria-pressed="true"] .lang-cs { color: var(--ink); }
.language-switch .divider { opacity: .35; padding: 0 3px; }

.button { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: 0 22px; border-radius: 12px; background: var(--accent); color: #052a22; font-weight: 850; text-decoration: none; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(84, 225, 185, .24); background: #68e9c4; }
.button-small { min-height: 42px; padding: 0 16px; font-size: 13px; }
.text-link { font-weight: 800; text-decoration: none; border-bottom: 1px solid #aab4c2; padding-bottom: 4px; }
.text-link:hover { color: var(--accent-dark); border-color: var(--accent-dark); }

.hero { overflow: hidden; position: relative; background: radial-gradient(circle at 78% 16%, rgba(84,225,185,.16), transparent 28%), linear-gradient(180deg, #f8fbfd 0%, #edf3f7 100%); }
.hero::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(15,23,40,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(15,23,40,.035) 1px, transparent 1px); background-size: 44px 44px; mask-image: linear-gradient(to bottom, black, transparent 94%); pointer-events: none; }
.hero-grid { position: relative; min-height: 720px; padding-block: 96px; display: grid; grid-template-columns: 1.12fr .88fr; gap: 72px; align-items: center; }
.eyebrow { margin: 0 0 18px; color: var(--accent-dark); font-size: 11px; font-weight: 900; letter-spacing: .17em; text-transform: uppercase; }
.eyebrow.light { color: var(--accent); }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 790px; margin-bottom: 25px; font-size: clamp(48px, 6vw, 78px); line-height: .99; letter-spacing: -.055em; }
.hero-lead { max-width: 760px; color: #475467; font-size: 19px; line-height: 1.65; }
.hero-actions { margin-top: 34px; display: flex; align-items: center; gap: 24px; }
.proof-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 48px; border-top: 1px solid #ccd5df; }
.proof-strip > div { padding: 20px 22px 0 0; }
.proof-strip > div + div { padding-left: 22px; border-left: 1px solid #ccd5df; }
.proof-strip strong { display: block; margin-bottom: 4px; font-size: 13px; }
.proof-strip span { display: block; color: var(--muted); font-size: 11px; line-height: 1.5; }

.hero-console { background: var(--dark); color: white; border: 1px solid rgba(255,255,255,.07); border-radius: 24px; box-shadow: 0 34px 85px rgba(8,17,31,.28); overflow: hidden; transform: rotate(1deg); }
.console-bar { height: 54px; display: flex; align-items: center; justify-content: space-between; padding: 0 20px; border-bottom: 1px solid rgba(255,255,255,.1); color: #8491a5; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 11px; }
.console-dots { display: flex; gap: 7px; }
.console-dots i { width: 8px; height: 8px; border-radius: 50%; background: #48556b; }
.console-dots i:first-child { background: #fb7185; }
.console-dots i:nth-child(2) { background: #fbbf24; }
.console-dots i:nth-child(3) { background: var(--accent); }
.console-body { padding: 31px 28px 27px; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.console-line { display: grid; grid-template-columns: 145px 1fr; gap: 12px; padding: 14px 0; border-bottom: 1px dashed rgba(255,255,255,.1); font-size: 13px; }
.console-line .key { color: var(--blue); }
.console-line .value { color: #dfe6ef; }
.console-result { display: flex; gap: 11px; align-items: flex-start; margin-top: 26px; padding: 18px; border-radius: 14px; background: rgba(84,225,185,.08); color: #b9c6d5; font-family: Inter, ui-sans-serif, system-ui, sans-serif; font-size: 12px; }
.status-dot { flex: 0 0 auto; width: 9px; height: 9px; margin-top: 5px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 5px rgba(84,225,185,.11); }

.challenge-section { padding-block: 85px; background: var(--surface); border-bottom: 1px solid var(--line); }
.challenge-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; align-items: start; }
.challenge-grid h2 { font-size: clamp(34px, 4vw, 52px); line-height: 1.08; letter-spacing: -.045em; }
.challenge-list { border-top: 1px solid var(--line); }
.challenge-list article { display: grid; gap: 20px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.challenge-list span { color: var(--accent-dark); font-size: 11px; font-weight: 900; }
.challenge-list p { margin: 0; color: #344054; font-size: 15px; }

.section { padding-block: 112px; }
.section-heading { max-width: 760px; }
.section-heading h2, .contact-section h2 { margin-bottom: 22px; font-size: clamp(35px, 4vw, 54px); line-height: 1.07; letter-spacing: -.047em; }
.section-heading > p:last-child { color: var(--muted); font-size: 17px; }
.split-heading { max-width: none; display: grid; grid-template-columns: 1fr .72fr; gap: 80px; align-items: end; }
.split-heading > p { margin-bottom: 8px; }
.centered-heading { margin-inline: auto; text-align: center; }

.service-grid { margin-top: 54px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
.service-card { position: relative; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 34px; overflow: hidden; }
.service-card::after { content: ""; position: absolute; right: -48px; top: -48px; width: 130px; height: 130px; border-radius: 50%; background: var(--accent-soft); opacity: .7; }
.service-card.featured { background: var(--dark); color: white; border-color: var(--dark); }
.service-card.featured::after { background: rgba(84,225,185,.13); }
.card-number { position: relative; z-index: 1; width: 42px; height: 42px; display: grid; place-items: center; margin-bottom: 40px; border-radius: 12px; background: var(--accent-soft); color: var(--accent-dark); font-size: 11px; font-weight: 900; }
.featured .card-number { background: rgba(84,225,185,.14); color: var(--accent); }
.service-card h3 { position: relative; z-index: 1; margin-bottom: 12px; font-size: 25px; line-height: 1.2; letter-spacing: -.028em; }
.service-card > p { position: relative; z-index: 1; min-height: 78px; color: var(--muted); }
.featured > p { color: #b4c0cf; }
.service-card ul { position: relative; z-index: 1; margin: 26px 0 0; padding: 22px 0 0; border-top: 1px solid var(--line); list-style: none; }
.featured ul { border-color: rgba(255,255,255,.12); }
.service-card li { position: relative; padding-left: 22px; margin: 9px 0; color: #344054; font-size: 13px; }
.featured li { color: #e2e7ed; }
.service-card li::before { content: ""; position: absolute; left: 0; top: .7em; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }

.section-dark { background: var(--dark); color: white; }
.expertise-grid { display: grid; grid-template-columns: .72fr 1.28fr; gap: 82px; align-items: start; }
.section-dark .section-heading > p:last-child { color: #9ca9ba; }
.expertise-panels { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; }
.expertise-panels article { padding: 29px; border: 1px solid rgba(255,255,255,.11); border-radius: 18px; background: rgba(255,255,255,.035); }
.expertise-panels h3 { margin-bottom: 10px; font-size: 20px; }
.expertise-panels p { color: #9facbc; font-size: 13px; min-height: 64px; }
.tag-list { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 20px; }
.tag-list span { padding: 6px 9px; border: 1px solid rgba(255,255,255,.12); border-radius: 999px; color: #d9e1ea; font-size: 10px; }

.engagement-grid { margin-top: 52px; display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 20px; }
.engagement-card { display: flex; flex-direction: column; padding: 32px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.engagement-card.highlighted { transform: translateY(-10px); border-color: var(--dark); box-shadow: var(--shadow); }
.engagement-label { color: var(--accent-dark); font-size: 10px; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }
.engagement-card h3 { margin: 14px 0 12px; font-size: 25px; }
.engagement-card > p { color: var(--muted); font-size: 14px; }
.deliverable { margin-top: auto; padding-top: 26px; border-top: 1px solid var(--line); }
.deliverable strong { display: block; margin-bottom: 6px; font-size: 11px; text-transform: uppercase; letter-spacing: .08em; }
.deliverable span { color: #475467; font-size: 13px; }

.process-section { padding-block: 106px; background: #eaf0f4; }
.process-grid { display: grid; grid-template-columns: .83fr 1.17fr; gap: 88px; align-items: start; }
.process-list { margin: 0; padding: 0; border-top: 1px solid #cbd4dd; list-style: none; }
.process-list li { display: grid; gap: 18px; padding: 29px 0; border-bottom: 1px solid #cbd4dd; }
.process-list li > span { color: var(--accent-dark); font-size: 11px; font-weight: 900; }
.process-list h3 { margin-bottom: 6px; font-size: 21px; }
.process-list p { margin: 0; color: var(--muted); font-size: 14px; }


.contact-section { padding-block: 96px; background: var(--dark); color: white; }
.contact-grid { display: grid; grid-template-columns: 1fr .82fr; gap: 80px; align-items: center; }
.contact-grid > div:first-child > p:last-child { color: #aeb8c7; max-width: 650px; }
.contact-card { border: 1px solid rgba(255,255,255,.12); border-radius: var(--radius); padding: 10px 30px; background: rgba(255,255,255,.035); }
.contact-line { display: flex; justify-content: space-between; gap: 20px; padding: 21px 0; border-bottom: 1px solid rgba(255,255,255,.1); text-decoration: none; }
.contact-line:last-child { border-bottom: 0; }
.contact-line span { color: #98a2b3; font-size: 12px; }
.contact-line strong { text-align: right; overflow-wrap: anywhere; }
a.contact-line:hover strong { color: var(--accent); }

.site-footer { padding-block: 34px; background: #050b13; color: white; }
.footer-inner { display: flex; justify-content: space-between; gap: 30px; align-items: flex-end; }
.footer-inner p { margin: 5px 0 0; color: #7e8999; font-size: 11px; }
.footer-meta { display: flex; flex-direction: column; align-items: flex-end; gap: 4px; max-width: 560px; color: #98a2b3; font-size: 11px; text-align: right; }
.footer-meta a { text-decoration: none; }
.optional-field[hidden] { display: none !important; }

@media (max-width: 1080px) {
  .desktop-nav { display: none; }
  .hero-grid { grid-template-columns: 1fr; min-height: auto; }
  .hero-console { max-width: 720px; transform: none; }
  .challenge-grid, .expertise-grid, .process-grid { grid-template-columns: 1fr; gap: 48px; }
  .split-heading { grid-template-columns: 1fr; gap: 8px; }
  .engagement-grid { grid-template-columns: 1fr; }
  .engagement-card.highlighted { transform: none; }
}

@media (max-width: 760px) {
  .container { width: min(calc(100% - 28px), var(--container)); }
  .site-header { position: relative; }
  .header-inner { min-height: 72px; }
  .brand { flex: 0 0 auto; }
  .brand-logo { width: 52px; height: 52px; }
  .button-small { display: none; }
  .hero-grid { padding-block: 72px; gap: 46px; }
  h1 { font-size: clamp(43px, 13vw, 62px); }
  .hero-lead { font-size: 17px; }
  .hero-actions { align-items: flex-start; flex-direction: column; }
  .proof-strip { grid-template-columns: 1fr; }
  .proof-strip > div { padding: 16px 0; border-bottom: 1px solid #ccd5df; }
  .proof-strip > div + div { padding-left: 0; border-left: 0; }
  .console-line { grid-template-columns: 1fr; gap: 3px; }
  .section, .challenge-section, .process-section { padding-block: 78px; }
  .service-grid, .expertise-panels { grid-template-columns: 1fr; }
  .service-card > p, .expertise-panels p { min-height: 0; }
  .contact-grid { grid-template-columns: 1fr; gap: 44px; }
  .contact-card { padding-inline: 21px; }
  .contact-line { flex-direction: column; gap: 5px; }
  .contact-line strong { text-align: left; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .footer-meta { align-items: flex-start; text-align: left; }
}