:root {
  --bg: #21112e;
  --lift: #2e1a3e;
  --ink: #120a1c;
  --lime: #d7f23f;
  --champagne: #c9b87a;
  --paper: #f4f7e8;
  --rail: 4.5rem;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: "Iowan Old Style", Palatino, "Palatino Linotype", serif;
  background: var(--bg);
  color: var(--paper);
}

.rail {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--rail);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  padding: 1rem 0.35rem;
  background: var(--ink);
  border-right: 1px solid rgba(215, 242, 63, 0.18);
  z-index: 8;
}

.rail__mark {
  color: var(--lime);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 0.8rem;
}

.rail__tab {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  background: transparent;
  border: 0;
  color: var(--champagne);
  font: inherit;
  font-size: 0.78rem;
  padding: 0.7rem 0.2rem;
  cursor: pointer;
}

.rail__tab.is-on { color: var(--lime); }

.stage {
  margin-left: var(--rail);
  max-width: 52rem;
}

.hero {
  padding: 2.4rem 1.5rem 2rem;
}

.kicker {
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.72rem;
  color: var(--champagne);
  margin: 0 0 0.6rem;
}

h1 {
  font-size: clamp(2.6rem, 8vw, 4.4rem);
  margin: 0 0 0.6rem;
  color: var(--lime);
}

.tagline {
  max-width: 36rem;
  line-height: 1.45;
  margin: 0 0 1.6rem;
  color: var(--paper);
}

.window {
  margin: 0;
  background: var(--ink);
  border: 10px solid #1a0e24;
  box-shadow: 0 0 0 2px var(--lime), 18px 22px 0 rgba(0, 0, 0, 0.35);
  overflow: hidden;
}

.window img {
  display: block;
  width: 100%;
  height: auto;
}

.window figcaption,
.stack figcaption {
  margin: 0;
  padding: 0.55rem 0.8rem;
  font-size: 0.8rem;
  color: var(--champagne);
  background: var(--lift);
}

.band { padding: 0 1.5rem 2.4rem; }

.intro h2 {
  margin: 0 0 0.4rem;
  color: var(--lime);
  font-size: 1.7rem;
}

.intro p {
  margin: 0 0 1.2rem;
  color: var(--champagne);
}

.cork {
  display: grid;
  gap: 1rem;
  padding: 1.2rem;
  background:
    repeating-linear-gradient(90deg, rgba(215, 242, 63, 0.04) 0 2px, transparent 2px 18px),
    var(--lift);
  border: 1px dashed rgba(201, 184, 122, 0.35);
}

.note {
  background: #f3ecd2;
  color: #1c1224;
  padding: 1rem 1.1rem 1.15rem;
  box-shadow: 4px 6px 0 rgba(0, 0, 0, 0.28);
  transform: rotate(-1.2deg);
}

.note--b { transform: rotate(1.4deg); background: #efe6c4; }
.note--c { transform: rotate(-0.6deg); background: #f7f0d8; }

.note h3 { margin: 0 0 0.4rem; font-size: 1.15rem; }
.note p { margin: 0; line-height: 1.4; }

.stack {
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}

.stack figure { margin: 0; }
.stack img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid rgba(215, 242, 63, 0.2);
}

.sheet {
  display: grid;
  gap: 1.4rem;
  margin: 0 1.5rem 2.5rem;
  padding: 1.4rem 1.3rem 1.6rem;
  background: var(--ink);
  border-top: 8px solid var(--lime);
  box-shadow: 0 -18px 0 var(--lift);
}

.sheet h2 {
  margin: 0 0 0.55rem;
  color: var(--lime);
  font-size: 1.25rem;
}

.sheet p {
  margin: 0 0 0.7rem;
  line-height: 1.5;
  color: var(--paper);
}

.mail { color: var(--lime); }

@media (min-width: 820px) {
  .sheet { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  :root { --rail: 3.1rem; }
  .rail__tab { font-size: 0.68rem; }
  .hero { padding: 1.6rem 1rem 1.4rem; }
  .band, .sheet { margin-left: 0; }
  .sheet { margin-right: 1rem; }
}