:root{
  --bg: #f3f5f8;
  --surface: #ffffff;
  --surface-2: #f8fafc;
  --ink: #0f172a;
  --muted: #64748b;
  --border: #dbe2ea;

  --primary: #1d4ed8;
  --primary-2: #2563eb;

  --success: #16a34a;
  --danger: #dc2626;
  --warning: #f59e0b;

  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 18px;

  --shadow-sm: 0 2px 8px rgba(15,23,42,.06);
  --shadow-md: 0 8px 22px rgba(15,23,42,.08);
  --shadow-lg: 0 16px 36px rgba(15,23,42,.10);

  --site-max: 1240px;
  --content-max: 1240px;
  --content-pad: 16px;

  --font-main: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}

*,
*::before,
*::after{
  box-sizing: border-box;
}

html{
  -webkit-text-size-adjust: 100%;
}

body{
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-main);
  line-height: 1.4;
}

img{
  display: block;
  max-width: 100%;
}

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

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

button{
  cursor: pointer;
}

.hidden{
  display: none !important;
}

.h1-hidden{
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.bbd-shell{
  width: 100%;
  max-width: var(--site-max);
  margin: 0 auto;
  padding: 0 var(--content-pad);
}

.bbd-main{
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--content-pad) 32px;
}

@media (max-width: 640px){
  :root{
    --content-pad: 12px;
  }
}