/* Offer 1+ page. Same navy + fonts as the rest of lab 15. */
@font-face { font-family: "Understone Serif"; src: url(/fonts/UnderstoneSerif-Light.woff2) format("woff2"); font-weight: 300; font-display: swap; }
@font-face { font-family: "Understone Serif"; src: url(/fonts/UnderstoneSerif-LightItalic.woff2) format("woff2"); font-weight: 300; font-style: italic; font-display: swap; }
@font-face { font-family: "PP Neue Montreal"; src: url(/fonts/PPNeueMontreal-Medium.woff2) format("woff2"); font-weight: 500; font-display: swap; }
@font-face { font-family: "IBM Plex Mono"; src: url(/fonts/IBMPlexMono-Medium-Latin1.woff2) format("woff2"); font-weight: 500; font-display: swap; }

:root { --bg: #03060f; --ink: #fff; --mute: #a3a6c1; --line: rgba(46, 107, 255, .35); --blue: #2E6BFF; --glow: rgba(46, 107, 255, .55);
  --serif: "Understone Serif", Georgia, serif; --sans: "PP Neue Montreal", system-ui, sans-serif; --mono: "IBM Plex Mono", ui-monospace, monospace; }
* { box-sizing: border-box; }
html { background: var(--bg); }
body { margin: 0; color: var(--ink); font-family: var(--sans); overflow-x: hidden;
  background: radial-gradient(120% 60% at 50% 42%, rgba(46, 107, 255, .16), transparent 60%), var(--bg); }

.top { display: flex; justify-content: space-between; align-items: center; padding: 1.5rem clamp(1rem, 3vw, 2.5rem); }
.mark { color: #fff; text-decoration: none; font-family: var(--serif); font-size: 1.25rem; }
.mark em { opacity: .78; }
.tag { font: 500 .7rem/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: #6f9bff; }

.hero { padding: 3vh clamp(1rem, 3vw, 2.5rem) 0; max-width: 64rem; }
.title { margin: 0; font-family: var(--serif); font-weight: 300; font-size: clamp(2.4rem, 6.4vw, 5.6rem); line-height: .98; letter-spacing: -.01em; }
.title .w { display: inline-block; white-space: nowrap; }
.title .c { display: inline-block; opacity: 0; transform: translateY(.5em); filter: blur(6px);
  transition: opacity .9s var(--d), transform .9s cubic-bezier(.16, 1, .3, 1) var(--d), filter .9s var(--d); }
.is-in .title .c { opacity: 1; transform: none; filter: none; }
.sub { max-width: 36rem; margin: 1.25rem 0 0; color: var(--mute); font-size: clamp(.95rem, 1.4vw, 1.1rem); line-height: 1.5;
  opacity: 0; transform: translateY(.75rem); transition: opacity .9s .6s, transform .9s cubic-bezier(.16, 1, .3, 1) .6s; }
.is-in .sub { opacity: 1; transform: none; }

/* ---- ring */
.ring-wrap { position: relative; height: min(70vh, 40rem); margin-top: 1rem; perspective: 1400px; perspective-origin: 50% 40%;
  cursor: grab; touch-action: pan-y; user-select: none; }
.ring-wrap:active { cursor: grabbing; }
.ring-wrap::after { content: ""; position: absolute; left: 0; right: 0; top: 64%; height: 2px;
  background: linear-gradient(90deg, transparent, var(--glow), transparent); filter: blur(1px); box-shadow: 0 0 40px 6px rgba(46, 107, 255, .25); }
.ring { position: absolute; left: 50%; top: 14%; width: 0; height: 0; transform-style: preserve-3d; }
.card { position: absolute; left: calc(var(--cw) / -2); top: 0; --cw: clamp(11rem, 19vw, 16rem); width: var(--cw); aspect-ratio: 3 / 4;
  padding: 1.1rem; border-radius: 1.1rem; display: flex; flex-direction: column; backface-visibility: hidden;
  background: repeating-linear-gradient(90deg, rgba(255, 255, 255, .025) 0 1px, transparent 1px 6px),
              linear-gradient(170deg, rgba(20, 40, 92, .95), rgba(5, 10, 26, .96));
  border: 1.5px solid var(--line); box-shadow: inset 0 0 30px rgba(46, 107, 255, .15);
  transition: border-color .4s, box-shadow .4s; cursor: pointer; }
.card.is-active { border-color: var(--blue); box-shadow: 0 0 0 1px var(--blue), 0 0 50px -6px var(--glow), inset 0 0 40px rgba(46, 107, 255, .3); }
.card__n { font: 500 .7rem/1 var(--mono); color: #6f9bff; letter-spacing: .08em; }
.card__q { margin: auto 0 .75rem; color: var(--mute); font-size: .85rem; line-height: 1.35; }
.card__t { margin: 0 0 .9rem; font-family: var(--serif); font-weight: 300; font-size: clamp(1.4rem, 2.2vw, 1.9rem); line-height: 1; }
.card__w { align-self: flex-start; padding: .4rem .6rem; border-radius: 9999px; border: 1px solid var(--line);
  font: 500 .65rem/1 var(--mono); letter-spacing: .05em; text-transform: uppercase; color: #cfdcff; }

.now { position: absolute; left: clamp(1rem, 3vw, 2.5rem); bottom: 0; max-width: 28rem; pointer-events: none; }
.now__n { font: 500 .75rem/1 var(--mono); color: #6f9bff; letter-spacing: .08em; }
.now__t { margin: .4rem 0 .4rem; font-family: var(--serif); font-weight: 300; font-size: clamp(2rem, 4.5vw, 3.6rem); line-height: 1; }
.now__t::before { content: "↳ "; }
.now__d { margin: 0; font: 500 .75rem/1.5 var(--mono); text-transform: uppercase; letter-spacing: .03em; color: var(--mute); }
.hint { position: absolute; right: clamp(1rem, 3vw, 2.5rem); bottom: .5rem; font: 500 .65rem/1 var(--mono); letter-spacing: .08em;
  text-transform: uppercase; color: rgba(163, 166, 193, .6); }

/* ---- blocks */
.block { max-width: 46rem; margin: 0 auto; padding: 5rem clamp(1rem, 3vw, 2.5rem) 0;
  opacity: 0; transform: translateY(2rem); transition: opacity .9s, transform .9s cubic-bezier(.16, 1, .3, 1); }
.block.is-in { opacity: 1; transform: none; }
.eyebrow { margin: 0 0 1.25rem; font: 500 .7rem/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: #6f9bff; }

.stack { list-style: none; margin: 0; padding: 0; }
.stack li { display: flex; justify-content: space-between; gap: 1rem; padding: .85rem 0; border-bottom: 1px solid rgba(255, 255, 255, .08); }
.stack b { font: 500 .8rem/1.4 var(--mono); color: var(--mute); white-space: nowrap; }
.total { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; padding: 1.25rem 0 0; }
.total span { font: 500 .75rem/1 var(--mono); text-transform: uppercase; letter-spacing: .06em; color: var(--mute); }
.total b { font-family: var(--serif); font-weight: 300; font-size: clamp(1.6rem, 4vw, 2.6rem); text-decoration: line-through;
  text-decoration-color: var(--blue); text-decoration-thickness: 2px; }
.price { margin: 1rem 0 0; font-size: 1.05rem; line-height: 1.5; color: #dfe5ff; }

.guards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.guard { padding: 1.25rem; border-radius: 1rem; border: 1px solid var(--line); background: rgba(14, 26, 58, .5); }
.guard b { display: block; font-family: var(--serif); font-weight: 300; font-size: 1.35rem; line-height: 1.1; margin-bottom: .5rem; }
.guard p { margin: 0; color: var(--mute); font-size: .9rem; line-height: 1.45; }
.block.is-in .guard { animation: rise .8s cubic-bezier(.16, 1, .3, 1) both; animation-delay: calc(var(--i) * .1s); }
@keyframes rise { from { opacity: 0; transform: translateY(1rem); } }

.asks { list-style: none; margin: 0; padding: 0; counter-reset: a; }
.asks li { counter-increment: a; position: relative; padding: 1rem 0 1rem 2.5rem; border-bottom: 1px solid rgba(255, 255, 255, .08);
  font-family: var(--serif); font-weight: 300; font-size: clamp(1.2rem, 2.4vw, 1.6rem); line-height: 1.2; }
.asks li::before { content: counter(a, decimal-leading-zero); position: absolute; left: 0; top: 1.35rem; font: 500 .7rem/1 var(--mono); color: #6f9bff; }

.limit__t { margin: 0; font-family: var(--serif); font-weight: 300; font-size: clamp(2rem, 5vw, 3.4rem); line-height: 1; }
.slots { display: flex; gap: .6rem; margin: 1.25rem 0 1.5rem; }
.slots i { width: 3rem; height: .45rem; border-radius: 9999px; background: var(--blue); box-shadow: 0 0 14px var(--glow);
  animation: pulse 2.4s ease-in-out infinite; animation-delay: calc(var(--i) * .2s); }
.slots i.taken { background: rgba(255, 255, 255, .15); box-shadow: none; animation: none; }
@keyframes pulse { 50% { opacity: .55; } }
.limit p { margin: 0 0 .75rem; color: var(--mute); line-height: 1.5; }
.limit .fit b { color: #fff; font-weight: 500; }
.limit .honest { color: #dfe5ff; }

.cta { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; padding-bottom: 6rem; }
.go { padding: 1rem 1.4rem; border-radius: 9999px; background: var(--blue); color: #fff; text-decoration: none;
  font: 500 .8rem/1 var(--mono); letter-spacing: .04em; text-transform: uppercase; transition: transform .3s, box-shadow .3s; }
.go:hover { transform: translateY(-2px); box-shadow: 0 12px 34px -8px var(--glow); }
.talk { color: #dfe5ff; font: 500 .8rem/1 var(--mono); letter-spacing: .04em; text-transform: uppercase; }
.talk:hover { color: #fff; }

@media (max-width: 640px) {
  .tag { display: none; }
  .ring-wrap { height: 30rem; perspective: 900px; }
  .card { --cw: 10rem; }
  .now { bottom: 1.5rem; } .hint { display: none; }
  .guards { grid-template-columns: 1fr; }
  .stack li { flex-direction: column; gap: .25rem; }
}
@media (prefers-reduced-motion: reduce) {
  .title .c, .sub, .block { transition: none; opacity: 1; transform: none; filter: none; }
  .slots i { animation: none; }
}