:root {
  color-scheme: light;
  --bg: #daeaf6;
  --panel: rgba(255,255,255,0.72);
  --panel-strong: rgba(255,255,255,0.94);
  --panel-border: rgba(20,28,42,0.12);
  --accent-primary: #4F63D8;
  --text: #12161f;
  --text-muted: #596272;
  --radius-lg: 22px;
  font-family: 'Inter', Arial, Helvetica, sans-serif;
  color: var(--text);
  background: var(--bg);
}
html { scrollbar-gutter: stable both-edges; }
body {
  margin: 0;
  min-height: 100svh;
  background: linear-gradient(180deg, #ffffff 0%, #e6f2fe 100%);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
main { max-width: 1100px; margin: auto; padding: clamp(16px, 4vw, 48px); }
h1 { font-size: clamp(24px, 3vw, 36px); font-weight: 700; letter-spacing: -0.035em; line-height: 1.15; margin: 0 0 12px; }
form { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin: 24px 0 8px; }
label { font-size: 14px; font-weight: 500; }
select, button { appearance: none; -webkit-appearance: none; box-sizing: border-box; font: inherit; line-height: 1.2; height: 44px; padding: 8px 12px; border: 1px solid var(--panel-border); border-radius: 10px; background: #ffffff; color: var(--text); max-width: 100%; }
select { padding-right: 34px; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='m1 1 5 5 5-5' fill='none' stroke='%23596272' stroke-width='1.5'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; }
button {
  cursor: pointer;
  border-color: rgba(20,28,42,0.13);
  background-color: rgba(233,237,244,0.88);
  background-image: linear-gradient(180deg, rgba(255,255,255,0.64), rgba(255,255,255,0.18));
  color: #303744;
  font-weight: 500;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.62);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
button:hover {
  border-color: rgba(20,28,42,0.15);
  background-color: rgba(241,245,250,0.96);
  background-image: linear-gradient(180deg, rgba(255,255,255,0.35), rgba(255,255,255,0.19));
  color: var(--text);
}
:focus-visible { outline: 3px solid var(--accent-primary); outline-offset: 3px; }
h2 { font-family: 'IBM Plex Mono', monospace; font-size: 15px; font-weight: 500; color: var(--text-muted); margin: 0 0 12px; }
#date-status { font-size: 13px; line-height: 1.5; color: var(--text-muted); }
.banner-grid { display: grid; gap: 28px; align-items: start; justify-content: center; grid-template-columns: minmax(0, 1fr); max-width: 816px; margin: 28px 0 0; }
.banner-grid section { min-width: 0; text-align: center; }
.banner-viewport { position: relative; max-width: 100%; margin-inline: auto; overflow: hidden; }
.banner-viewport[data-width="300"] { width: 300px; }
.banner-viewport[data-width="160"] { width: 160px; }
.banner-viewport[data-width="728"] { width: 728px; }
iframe { border: 0; display: block; transform-origin: top left; }
@media (min-width: 980px) { .banner-grid { grid-template-columns: 300px 300px 160px; } .leaderboard { grid-column: 1 / -1; } }
.animation-grid { display: grid; gap: 64px 28px; grid-template-columns: minmax(0, 1fr); max-width: 956px; margin-top: 28px; }
.animation-grid section { min-width: 0; text-align: center; }
@media (min-width: 1100px) { .animation-grid { grid-template-columns: repeat(3, 300px); } }

.campaign-intro { margin: 0; max-width: 70ch; color: var(--text-muted); font-size: 14px; line-height: 1.5; }