:root {
  color-scheme: light;
  --ink: #17212b;
  --muted: #5f6f7c;
  --line: #d8e0e5;
  --surface: #ffffff;
  --wash: #f3f7f8;
  --brand: #0f6f7a;
  --brand-dark: #0a4f58;
  --accent: #c23b2a;
  --gold: #e5a923;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--wash);
  color: var(--ink);
}

.training-shell {
  min-height: 100vh;
}

.training-topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 4vw, 48px);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 220px;
  color: var(--ink);
  font-size: 1rem;
  font-weight: 800;
  text-decoration: none;
}

.brand-lockup img {
  width: 150px;
  height: auto;
  display: block;
}

.brand-lockup span {
  border-left: 1px solid var(--line);
  padding-left: 14px;
  white-space: nowrap;
}

.training-tabs {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #eef4f5;
}

.training-tab {
  min-width: 88px;
  padding: 10px 16px;
  border-radius: 6px;
  color: var(--brand-dark);
  font-size: 0.95rem;
  font-weight: 800;
  text-align: center;
  text-decoration: none;
}

.training-tab:hover,
.training-tab:focus-visible {
  background: #ffffff;
  outline: none;
}

.training-tab.active {
  background: var(--brand);
  color: #ffffff;
}

.training-main {
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
  padding: 42px 0 72px;
}

.intro-band {
  padding: clamp(30px, 6vw, 58px) 0 clamp(34px, 7vw, 68px);
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 14px;
  color: var(--brand-dark);
  font-size: clamp(2.25rem, 6vw, 4.25rem);
  line-height: 1;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  color: var(--ink);
  font-size: clamp(1.45rem, 3vw, 2.1rem);
  line-height: 1.1;
  letter-spacing: 0;
}

.intro-band p:last-child,
.training-section > p {
  max-width: 720px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.55;
}

.training-section {
  display: grid;
  grid-template-columns: minmax(220px, 0.32fr) 1fr;
  gap: clamp(18px, 4vw, 52px);
  align-items: start;
  padding: 34px 0;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 92px;
}

#office {
  border-top: 6px solid var(--gold);
}

#sales {
  border-top: 6px solid var(--brand);
}

#techs {
  border-top: 6px solid var(--accent);
}

@media (max-width: 760px) {
  .training-topbar {
    align-items: stretch;
    flex-direction: column;
    gap: 12px;
  }

  .brand-lockup {
    min-width: 0;
    justify-content: space-between;
  }

  .brand-lockup img {
    width: 132px;
  }

  .training-tabs {
    width: 100%;
  }

  .training-tab {
    flex: 1;
    min-width: 0;
    padding: 10px 8px;
  }

  .training-main {
    width: min(100% - 28px, 1120px);
    padding-top: 28px;
  }

  .training-section {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}