:root {
  --paper: #f3ecdc;
  --sheet: #fffdf8;
  --ink: #1c1712;
  --mute: #5e564c;
  --line: #d9d0bf;
  --cobalt: #1d3fbf;
  --cobalt-d: #152f8f;
  --persimmon: #e23d1a;
  --persimmon-d: #b82e12;
  --moss: #2f5d45;
  --shadow: #1c1712;
  --serif: "Newsreader", "Palatino Linotype", Palatino, serif;
  --sans: "Be Vietnam Pro", "Segoe UI", sans-serif;
  --mono: "Inconsolata", "Cascadia Mono", ui-monospace, monospace;
  --wrap: 1120px;
  color-scheme: light;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}
body::before {
  content: "";
  position: fixed;
  inset: 0 auto 0 0;
  width: 10px;
  background: var(--cobalt);
  z-index: 50;
  pointer-events: none;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--cobalt-d); }
button, input { font: inherit; }
::selection { background: #d9e1ff; color: var(--ink); }

.by-skip {
  position: absolute;
  left: 16px;
  top: -60px;
  background: var(--ink);
  color: var(--sheet);
  padding: 8px 12px;
  z-index: 80;
}
.by-skip:focus { top: 10px; }

.by-wrap {
  width: min(var(--wrap), calc(100% - 36px));
  margin: 0 auto;
}

.by-ticker {
  display: flex;
  align-items: stretch;
  background: var(--ink);
  color: #f6efe2;
  min-height: 40px;
  margin-left: 10px;
}
.by-ticker-tag {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  background: var(--persimmon);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  padding: 0 14px;
}
.by-ticker-window { overflow: hidden; flex: 1; min-width: 0; display: flex; align-items: center; }
.by-ticker-move {
  display: flex;
  width: max-content;
  animation: by-drift 32s linear infinite;
}
.by-ticker-move span {
  white-space: nowrap;
  padding-right: 3rem;
  font-family: var(--mono);
  font-size: 0.95rem;
}
.by-ticker:hover .by-ticker-move { animation-play-state: paused; }
@keyframes by-drift {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.by-head {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(243, 236, 220, 0.96);
  border-bottom: 1px solid var(--line);
  margin-left: 10px;
  backdrop-filter: blur(8px);
}
.by-head-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0 10px;
}
.by-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: inherit;
  text-decoration: none;
  min-width: 0;
}
.by-logo img {
  width: 46px;
  height: 46px;
  border: 2px solid var(--ink);
  box-shadow: 3px 3px 0 var(--cobalt);
}
.by-logo strong {
  font-family: var(--serif);
  font-size: 1.7rem;
  font-weight: 650;
  letter-spacing: -0.03em;
  line-height: 1;
}
.by-logo em {
  display: block;
  margin-top: 3px;
  font-style: normal;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--mute);
  letter-spacing: 0.04em;
}
.by-head-cta { display: flex; gap: 8px; flex: 0 0 auto; }
.by-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  align-items: center;
  padding: 0 0 12px;
}
.by-nav a {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
}
.by-nav a:hover { color: var(--persimmon-d); }
.by-langs { margin-left: auto; display: flex; gap: 8px; font-family: var(--mono); font-size: 0.86rem; }
.by-langs a { text-decoration: none; color: var(--mute); }
.by-langs a[aria-current="page"] { color: var(--ink); font-weight: 700; }

.by-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 16px;
  border: 2px solid var(--ink);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.01em;
  box-shadow: 4px 4px 0 var(--shadow);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.by-btn:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0 var(--shadow); }
.by-btn:focus-visible { outline: 3px solid var(--cobalt); outline-offset: 2px; }
.by-btn-go { background: var(--cobalt); color: #f7f4ee; }
.by-btn-join { background: var(--persimmon); color: #fffaf6; }
.by-btn-ghost { background: var(--sheet); color: var(--ink); }

.by-crumbs { margin: 18px 0 0; font-size: 0.86rem; color: var(--mute); }
.by-crumbs ol { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; margin: 0; padding: 0; }
.by-crumbs li:not(:last-child)::after { content: "/"; margin-left: 6px; color: #8a8174; }
.by-crumbs a { color: var(--mute); }

.by-hero { padding: 18px 0 10px; margin-left: 10px; }
.by-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 34px;
  align-items: stretch;
}
.by-kicker {
  font-family: var(--mono);
  font-size: 0.86rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--persimmon-d);
  margin: 0 0 8px;
}
h1 {
  font-family: var(--serif);
  font-weight: 650;
  font-size: clamp(2.5rem, 6vw, 4.7rem);
  line-height: 0.96;
  letter-spacing: -0.035em;
  margin: 0 0 14px;
}
.by-dek {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.25rem, 2vw, 1.55rem);
  line-height: 1.35;
  margin: 0 0 14px;
}
.by-lead { margin: 0; max-width: 62ch; color: #2a241e; }
.by-meta-line { margin-top: 16px; color: var(--mute); font-size: 0.92rem; }

.by-ticket {
  background: var(--sheet);
  border: 2px solid var(--ink);
  border-left: 12px solid var(--persimmon);
  box-shadow: 8px 8px 0 var(--cobalt);
  padding: 18px 18px 16px;
  position: relative;
}
.by-ticket h2 {
  font-family: var(--serif);
  font-size: 1.7rem;
  line-height: 1.15;
  margin: 0 0 8px;
}
.by-adres {
  display: block;
  margin: 10px 0;
  padding: 10px 12px;
  background: #f6f1e6;
  border: 1px dashed #b7ad9c;
  font-family: var(--mono);
  font-size: 1rem;
  line-height: 1.4;
  overflow-wrap: anywhere;
  word-break: break-word;
}
.by-ticket-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.by-ticket-actions .by-btn { flex: 1 1 140px; }
.by-fine { margin: 10px 0 0; color: var(--mute); font-size: 0.86rem; }

.by-slider { margin: 28px 0 8px 10px; max-width: 100%; }
.by-slider-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 12px;
  margin-bottom: 12px;
}
.by-slider-head h2 {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin: 0;
  line-height: 1.1;
}
.by-slider-ui { display: flex; gap: 8px; }
.by-slider-ui button {
  width: 44px;
  height: 44px;
  border: 2px solid var(--ink);
  background: var(--sheet);
  box-shadow: 3px 3px 0 var(--shadow);
  cursor: pointer;
}
.by-viewport { overflow: hidden; max-width: 100%; border: 2px solid var(--ink); background: var(--sheet); }
.by-track { display: flex; transition: transform 0.45s ease; }
.by-slide {
  flex: 0 0 100%;
  min-width: 100%;
  padding: 22px 22px 26px;
  background:
    repeating-linear-gradient(-14deg, transparent, transparent 12px, rgba(29, 63, 191, 0.045) 12px, rgba(29, 63, 191, 0.045) 13px);
}
.by-slide p { max-width: 68ch; margin: 8px 0 0; }
.by-slide-no {
  font-family: var(--mono);
  color: var(--cobalt);
  font-weight: 700;
}
.by-dots { display: flex; gap: 6px; margin-top: 10px; }
.by-dots button {
  width: 10px;
  height: 10px;
  border: 0;
  background: #c8bfae;
  padding: 0;
}
.by-dots button[aria-current="true"] { background: var(--persimmon); }

.by-toc {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 6px 10px;
}
.by-toc a {
  text-decoration: none;
  background: var(--sheet);
  border: 1px solid var(--ink);
  padding: 6px 10px;
  color: var(--ink);
  font-size: 0.92rem;
}

.by-story {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 8px 18px;
  padding: 42px 0;
  border-top: 1px solid var(--line);
  margin-left: 10px;
}
.by-num {
  font-family: var(--serif);
  font-size: 2.4rem;
  color: var(--persimmon);
  line-height: 1;
}
.by-story h2 {
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin: 0 0 12px;
}
.by-story h3 {
  font-family: var(--serif);
  font-size: 1.45rem;
  line-height: 1.25;
  margin: 22px 0 8px;
}
.by-prose { max-width: 70ch; }
.by-prose p { margin: 0 0 14px; }
.by-prose ul { margin: 0 0 14px; padding-left: 1.15rem; }
.by-prose li { margin: 6px 0; }

.by-score {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  gap: 18px;
  background: var(--sheet);
  border: 2px solid var(--ink);
  box-shadow: 8px 8px 0 #eadfcb;
  padding: 16px;
  margin: 8px 0 16px;
}
.by-score b {
  font-family: var(--serif);
  font-size: 4rem;
  line-height: 0.9;
  display: block;
}
.by-score span { color: var(--mute); font-size: 0.92rem; }
.by-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--line);
  padding: 9px 0;
}
.by-row:last-child { border-bottom: 0; }

.by-event {
  background: var(--ink);
  color: #f6efe2;
  margin-left: 10px;
  padding: 28px 0;
}
.by-event h2 {
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin: 0 0 8px;
  line-height: 1.15;
}
.by-event p { max-width: 70ch; }
.by-when {
  display: inline-block;
  margin-top: 8px;
  background: var(--persimmon);
  color: white;
  padding: 6px 10px;
  font-family: var(--mono);
}

.by-faq details { border-top: 1px solid var(--line); padding: 12px 0; }
.by-faq details:last-child { border-bottom: 1px solid var(--line); }
.by-faq summary {
  cursor: pointer;
  font-weight: 650;
  font-size: 1.05rem;
  line-height: 1.4;
  scroll-margin-bottom: 110px;
}
.by-story, .by-event, .by-slider { scroll-margin-top: 88px; scroll-margin-bottom: 110px; }
.by-faq summary:focus-visible { outline: 3px solid var(--cobalt); }
.by-faq details p { margin: 8px 0 4px; max-width: 70ch; color: #2c261f; }

.by-foot {
  margin-left: 10px;
  padding: 28px 0 36px;
  color: var(--mute);
  font-size: 0.92rem;
  border-top: 1px solid var(--line);
}
.by-foot strong { color: var(--ink); }
.by-foot-links { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 10px; }
.by-foot a { color: var(--ink); }

.by-dock {
  display: none;
  position: fixed;
  left: 10px;
  right: 0;
  bottom: 0;
  z-index: 45;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
  background: #fffdf8;
  border-top: 2px solid var(--ink);
}
.by-dock .by-btn { width: 100%; box-shadow: none; }

@media (max-width: 860px) {
  body::before { width: 0; }
  .by-ticker, .by-head, .by-hero, .by-slider, .by-toc, .by-story, .by-event, .by-foot { margin-left: 0; }
  .by-wrap.by-hero { margin-left: auto; margin-right: auto; }
  .by-wrap { width: min(var(--wrap), calc(100% - 28px)); }
  .by-head-row { flex-wrap: wrap; align-items: flex-start; }
  .by-head-cta { width: 100%; display: grid; grid-template-columns: 1fr 1fr; }
  .by-nav { display: none; }
  .by-nav.open { display: flex; }
  .by-langs { margin-left: 0; width: 100%; }
  .by-menu { display: inline-flex; }
  .by-hero-grid, .by-score, .by-story { grid-template-columns: 1fr; }
  .by-num { font-size: 1.6rem; }
  .by-ticket { box-shadow: 5px 5px 0 var(--cobalt); }
  .by-dock { display: grid; left: 0; }
  .by-btn { padding: 0 10px; font-size: 0.98rem; }
  body { padding-bottom: calc(78px + env(safe-area-inset-bottom)); }
  h1 { font-size: clamp(2.15rem, 11vw, 3.1rem); }
}

.by-menu {
  display: none;
  align-items: center;
  min-height: 44px;
  padding: 0 12px;
  border: 2px solid var(--ink);
  background: var(--sheet);
  cursor: pointer;
  font-weight: 700;
}
@media (max-width: 860px) {
  .by-menu { display: inline-flex; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .by-ticker-move, .by-track { animation: none !important; transition: none !important; }
  .by-btn { transition: none; }
}