:root {
  --bg: #0b0d10;
  --bg-alt: #101317;
  --surface: #15181d;
  --border: #22262d;
  --text: #e8eaed;
  --text-muted: #9aa0a8;
  --accent: #e2342d;
  --accent-dim: #8f2420;
  --radius: 10px;
  --container: 1100px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

a {
  color: inherit;
  text-decoration: none;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(11, 13, 16, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.01em;
}

.brand-mark {
  color: var(--accent);
  display: inline-flex;
}

.accent {
  color: var(--accent);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) - 4px);
  background: var(--surface);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 0 auto;
  background: var(--text);
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.site-nav {
  display: flex;
  gap: 28px;
}

.site-nav a {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.15s ease;
}

.site-nav a:hover {
  color: var(--text);
}

.site-nav a.active {
  color: var(--accent);
}

/* Language toggle */

.lang-toggle {
  display: flex;
  gap: 4px;
  padding: 4px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.lang-toggle-floating {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 10;
}

.lang-btn {
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: calc(var(--radius) - 4px);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.lang-btn:hover {
  color: var(--text);
}

.lang-btn.active {
  background: var(--accent);
  color: #fff;
}

/* Hero */

.hero {
  padding: 120px 0 100px;
  background:
    radial-gradient(circle at 15% 20%, rgba(226, 52, 45, 0.08), transparent 45%),
    var(--bg);
  border-bottom: 1px solid var(--border);
}

.hero-inner {
  max-width: 760px;
}

.eyebrow {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  font-weight: 700;
  margin: 0 0 16px;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  line-height: 1.15;
  margin: 0 0 24px;
}

.hero-lede {
  color: var(--text-muted);
  font-size: 1.15rem;
  max-width: 600px;
  margin: 0 0 36px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Buttons */

.btn {
  display: inline-block;
  max-width: 100%;
  overflow-wrap: anywhere;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: #c92b25;
  transform: translateY(-1px);
}

.btn-ghost {
  border-color: var(--border);
  color: var(--text);
}

.btn-ghost:hover {
  border-color: var(--accent-dim);
  transform: translateY(-1px);
}

.btn-large {
  padding: 18px 36px;
  font-size: 1.1rem;
}

/* Sections */

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin: 0 0 48px;
  text-align: center;
}

.services {
  padding: 100px 0;
  border-bottom: 1px solid var(--border);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}

.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
}

.service-icon {
  color: var(--accent);
  font-size: 1.8rem;
  margin-bottom: 16px;
}

.service-card h3 {
  margin: 0 0 14px;
  font-size: 1.3rem;
}

.service-card p {
  color: var(--text-muted);
  margin: 0 0 18px;
}

.service-card ul {
  margin: 0;
  padding-left: 20px;
  color: var(--text-muted);
}

/* Careers */

.careers-hero {
  padding-bottom: 60px;
}

.job-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  max-width: 760px;
  margin: 0 auto;
}

.job-card h3 {
  margin: 0 0 8px;
  font-size: 1.4rem;
}

.job-meta {
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 600;
  margin: 0 0 20px;
}

.job-card > p {
  color: var(--text-muted);
  margin: 0 0 28px;
}

.job-card h4 {
  margin: 0 0 12px;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text);
}

.job-card ul {
  margin: 0 0 28px;
  padding-left: 20px;
  color: var(--text-muted);
}

.job-card li {
  margin-bottom: 8px;
}

.service-card li {
  margin-bottom: 8px;
}

/* Case studies */

.case-disclaimer {
  color: var(--text-muted);
  font-size: 0.85rem;
  font-style: italic;
  opacity: 0.8;
  margin: -16px 0 0;
}

.case-studies-grid {
  display: flex;
  flex-direction: column;
  gap: 28px;
  max-width: 760px;
  margin: 0 auto;
}

.case-study-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
}

.case-tag {
  display: inline-block;
  background: rgba(226, 52, 45, 0.12);
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 14px;
}

.case-study-card h3 {
  margin: 0 0 22px;
  font-size: 1.4rem;
}

.case-section {
  margin-bottom: 20px;
}

.case-section:last-child {
  margin-bottom: 0;
}

.case-section h4 {
  margin: 0 0 6px;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
}

.case-section p {
  margin: 0;
  color: var(--text-muted);
}

.about {
  padding: 100px 0;
  border-bottom: 1px solid var(--border);
}

.about-inner {
  max-width: 760px;
}

.about p {
  color: var(--text-muted);
  font-size: 1.05rem;
}

.contact {
  padding: 100px 0;
  text-align: center;
}

.contact-inner {
  max-width: 560px;
  margin: 0 auto;
}

.contact p {
  color: var(--text-muted);
  margin-bottom: 32px;
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 28px 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-legal {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.72rem;
  color: var(--text-muted);
  opacity: 0.6;
}

@media (max-width: 820px) {
  .nav-toggle {
    display: flex;
  }

  .header-right {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 12px 24px 20px;
  }

  .header-right.open {
    display: flex;
  }

  .site-nav {
    flex-direction: column;
    gap: 0;
  }

  .site-nav a {
    padding: 12px 4px;
    border-bottom: 1px solid var(--border);
    font-size: 1rem;
  }

  .lang-toggle {
    width: 100%;
    margin-top: 12px;
    padding: 4px;
  }

  .lang-btn {
    flex: 1;
    text-align: center;
    padding: 12px 4px;
    font-size: 0.9rem;
  }
}

@media (max-width: 640px) {
  .footer-inner {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 6px;
  }

  .hero {
    padding: 90px 0 70px;
  }

  .services,
  .about,
  .contact {
    padding: 64px 0;
  }

  .service-grid {
    grid-template-columns: 1fr;
  }

  .service-card,
  .job-card,
  .case-study-card {
    padding: 24px;
  }
}