:root {
  --ys-navy-950: #07162d;
  --ys-navy-900: #0b2142;
  --ys-navy-800: #123665;
  --ys-blue-600: #2563eb;
  --ys-gold-500: #f4b740;
  --ys-emerald-500: #16a37a;
  --ys-slate-950: #111827;
  --ys-slate-700: #374151;
  --ys-slate-500: #6b7280;
  --ys-slate-300: #d6dce5;
  --ys-slate-200: #e7ebf0;
  --ys-slate-100: #f3f5f8;
  --ys-canvas: #f5f7fa;
  --ys-white: #ffffff;
  --ys-danger: #dc3545;
  --ys-radius-sm: 10px;
  --ys-radius-md: 16px;
  --ys-radius-lg: 24px;
  --ys-shadow-sm: 0 1px 2px rgba(7, 22, 45, 0.05), 0 6px 18px rgba(7, 22, 45, 0.04);
  --ys-shadow-md: 0 18px 45px rgba(7, 22, 45, 0.10);
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light;
}

body {
  color: var(--ys-slate-950);
  background: var(--ys-canvas);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
a,
input,
select,
textarea {
  outline-color: var(--ys-blue-600);
  outline-offset: 2px;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid rgba(37, 99, 235, 0.28);
}

::selection {
  color: var(--ys-white);
  background: var(--ys-blue-600);
}

.ys-site-header {
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(7, 22, 45, 0.96) !important;
  box-shadow: 0 10px 30px rgba(7, 22, 45, 0.16) !important;
  backdrop-filter: blur(14px);
}

.ys-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--ys-white);
  font-weight: 900;
  letter-spacing: -0.045em;
}

.ys-brand::before {
  width: 2rem;
  height: 2rem;
  border-radius: 10px;
  content: "Y";
  display: inline-grid;
  place-items: center;
  color: var(--ys-navy-950);
  background: var(--ys-gold-500);
  font-size: 0.9rem;
  letter-spacing: 0;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.45);
}

.ys-eyebrow {
  color: var(--ys-blue-600);
  font-size: 0.69rem;
  font-weight: 900;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.ys-surface {
  border: 1px solid var(--ys-slate-200);
  border-radius: var(--ys-radius-lg);
  background: var(--ys-white);
  box-shadow: var(--ys-shadow-sm);
}

.ys-header-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 2.55rem;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 11px;
  padding: 0 0.9rem;
  color: #e8eef8;
  background: rgba(255, 255, 255, 0.07);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  transition: color 160ms ease, background 160ms ease;
}

.ys-header-link:hover {
  color: var(--ys-navy-950);
  background: var(--ys-white);
}