:root {
  --felt-deep: #12261f;
  --felt: #1b3a2f;
  --felt-pile: #24503f;
  --ivory: #f6f0e4;
  --paper: #efe6d4;
  --ink: #1c2a24;
  --ticket: #c4342a;
  --brass: #c4a35a;
  --moss: #6e8a6a;
  --line: #b7a88a;
  --shadow: 0 18px 40px rgba(18, 38, 31, 0.18);
  --serif: "Fraunces", "Source Serif 4", "Palatino Linotype", serif;
  --sans: "IBM Plex Sans", "Source Sans 3", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(196, 163, 90, 0.12), transparent 50%),
    linear-gradient(180deg, #f3ece0 0%, var(--paper) 40%, #e7decc 100%);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
}
img { max-width: 100%; display: block; }
button, textarea, input { font: inherit; }
code { font-family: var(--mono); font-size: 0.92em; }

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  background: var(--ink);
  color: var(--ivory);
  padding: 0.4rem 0.7rem;
  z-index: 40;
}
.skip-link:focus { top: 1rem; }

.opening {
  position: fixed;
  inset: 0;
  z-index: 30;
  background: var(--felt-deep);
  color: var(--ivory);
  display: grid;
  place-items: center;
  overflow: hidden;
}
.opening[hidden],
.app[hidden],
.modal[hidden],
.panel-card[hidden],
.verify-ok[hidden] {
  display: none !important;
}
.opening-felt {
  width: min(920px, 92vw);
  text-align: center;
}
.opening-kicker,
.opening-brand,
.opening-line,
.opening-tray,
.opening-strip,
.opening-die {
  opacity: 0;
  transform: translateY(12px);
}
.opening.is-kicker .opening-kicker,
.opening.is-tray .opening-tray,
.opening.is-strip .opening-strip,
.opening.is-die .opening-die,
.opening.is-brand .opening-brand,
.opening.is-line .opening-line {
  opacity: 1;
  transform: none;
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.opening-kicker {
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 0.78rem;
  color: #d7c7a4;
}
.opening-tray {
  position: relative;
  margin: 1.6rem auto 1.4rem;
  width: min(520px, 86vw);
  aspect-ratio: 1.35 / 1;
  border-radius: 48% / 42%;
  background:
    radial-gradient(ellipse at 40% 35%, #2d6150, var(--felt) 55%, #10241c 100%);
  box-shadow: inset 0 0 0 10px #16362c, inset 0 20px 40px rgba(0,0,0,0.18), 0 24px 50px rgba(0,0,0,0.35);
}
.opening-rim {
  position: absolute;
  inset: 14px;
  border-radius: inherit;
  border: 1.5px dashed rgba(196, 163, 90, 0.35);
}
.opening-strip {
  position: absolute;
  left: 10%;
  top: 18%;
  right: 10%;
  background: var(--ivory);
  color: var(--ink);
  border-radius: 4px;
  padding: 0.45rem 0.7rem;
  display: flex;
  gap: 0.7rem;
  align-items: center;
  box-shadow: 0 8px 16px rgba(0,0,0,0.18);
  font-family: var(--mono);
  font-size: 0.78rem;
}
.opening-strip-label {
  color: var(--ticket);
  letter-spacing: 0.08em;
  font-weight: 500;
}
.opening-die {
  position: absolute;
  left: 50%;
  top: 54%;
  width: 92px;
  height: 92px;
  transform: translate(-50%, -40%) rotate(-8deg);
  filter: drop-shadow(0 14px 12px rgba(0,0,0,0.28));
}
.opening.is-die .opening-die {
  animation: die-settle 0.9s ease both;
}
@keyframes die-settle {
  0% { transform: translate(-50%, -70%) rotate(-28deg) scale(0.8); }
  100% { transform: translate(-50%, -40%) rotate(-8deg) scale(1); }
}
.opening-brand {
  font-family: var(--serif);
  font-size: clamp(3.2rem, 8vw, 5.4rem);
  font-weight: 560;
  margin: 0;
}
.opening-line {
  margin: 0.4rem 0 0;
  color: #e4d6b8;
}
.opening-skip {
  position: absolute;
  right: 1.2rem;
  bottom: 1.2rem;
  background: transparent;
  color: var(--ivory);
  border: 1px solid rgba(246, 240, 228, 0.35);
  border-radius: 999px;
  padding: 0.45rem 0.9rem;
  cursor: pointer;
}

.app { min-height: 100vh; }
.nav-wrap {
  position: sticky;
  top: 0.7rem;
  z-index: 12;
  display: flex;
  justify-content: center;
  padding: 0 1rem;
}
.nav {
  width: min(1100px, 100%);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.55rem 0.7rem 0.55rem 0.9rem;
  background: rgba(27, 58, 47, 0.94);
  color: var(--ivory);
  border-radius: 999px;
  box-shadow: var(--shadow);
}
.nav-mark {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  color: inherit;
  text-decoration: none;
  font-family: var(--serif);
  font-weight: 560;
}
.nav-die { width: 22px; height: 22px; }
.nav-links { display: flex; gap: 1.1rem; }
.nav-links a { color: #e8dcc4; text-decoration: none; font-size: 0.95rem; }
.nav-end { display: flex; align-items: center; gap: 0.55rem; }
.nav-ghost, .nav-pill {
  border: 0;
  border-radius: 999px;
  padding: 0.42rem 0.85rem;
  cursor: pointer;
  text-decoration: none;
}
.nav-ghost {
  background: transparent;
  color: #e8dcc4;
}
.nav-pill {
  background: var(--ivory);
  color: var(--felt);
  font-weight: 500;
}

.hero {
  width: min(1140px, calc(100% - 2rem));
  margin: 2.4rem auto 0;
}
.eyebrow {
  margin: 0 0 0.55rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.75rem;
  color: var(--ticket);
}
.hero h2, .spread h2, .notes h2, .log-wrap h2, .modal h2 {
  font-family: var(--serif);
  font-weight: 560;
  letter-spacing: -0.02em;
  line-height: 1.12;
}
.hero h2 { font-size: clamp(2.3rem, 5vw, 4rem); margin: 0 0 0.8rem; }
.lede { max-width: 38rem; color: #3b4a42; }
.tray-stage {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.9fr);
  gap: 1.4rem;
  margin-top: 1.6rem;
  align-items: stretch;
}
.felt-tray {
  position: relative;
  min-height: 520px;
  border-radius: 36px;
  padding: 1.4rem;
  background:
    radial-gradient(ellipse at 35% 25%, #31705b, var(--felt) 52%, #10241c 100%);
  box-shadow: var(--shadow), inset 0 0 0 1px rgba(196, 163, 90, 0.18);
  overflow: hidden;
}
.felt-pile {
  position: absolute;
  inset: 18px;
  border-radius: 46% / 40%;
  background: radial-gradient(ellipse at 50% 45%, #2a5a47, transparent 62%);
  box-shadow: inset 0 0 0 8px rgba(18, 38, 31, 0.35);
}
.seed-strip {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  background: var(--ivory);
  color: var(--ink);
  border-radius: 6px;
  padding: 0.7rem 0.9rem;
  box-shadow: 0 10px 20px rgba(0,0,0,0.16);
  transform: rotate(-1.4deg);
}
.strip-tag {
  flex: none;
  color: var(--ticket);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
}
.strip-value {
  font-family: var(--mono);
  font-size: 0.9rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.die-well {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  min-height: 320px;
}
.ivory-die {
  position: relative;
  width: 148px;
  height: 148px;
  border: 0;
  background: transparent;
  cursor: pointer;
  padding: 0;
}
.ivory-die.is-rolling { animation: roll-spin 0.7s ease; }
@keyframes roll-spin {
  0% { transform: rotate(0) scale(1); }
  40% { transform: rotate(210deg) scale(0.92); }
  100% { transform: rotate(360deg) scale(1); }
}
.die-shadow {
  position: absolute;
  left: 18%;
  right: 18%;
  bottom: -8px;
  height: 18px;
  background: radial-gradient(ellipse, rgba(0,0,0,0.35), transparent 70%);
}
.die-face-svg { width: 100%; height: 100%; position: relative; z-index: 1; }
.die-face-num {
  position: absolute;
  right: -0.2rem;
  bottom: -0.15rem;
  background: var(--ticket);
  color: var(--ivory);
  border-radius: 999px;
  min-width: 2rem;
  padding: 0.15rem 0.45rem;
  font-family: var(--mono);
  font-size: 0.85rem;
}
.tray-caption {
  position: relative;
  z-index: 1;
  margin: 0;
  text-align: center;
  color: #d7c7a4;
  font-size: 0.88rem;
}

.tray-panel { display: grid; gap: 0.9rem; align-content: start; }
.panel-card {
  background: rgba(246, 240, 228, 0.88);
  border: 1px solid rgba(183, 168, 138, 0.45);
  border-radius: 22px;
  padding: 1rem 1.05rem 1.1rem;
  box-shadow: 0 10px 24px rgba(18, 38, 31, 0.06);
}
.panel-card label,
.stat-label {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #5d6b63;
  margin-bottom: 0.35rem;
}
textarea {
  width: 100%;
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fffaf1;
  color: var(--ink);
  padding: 0.7rem 0.75rem;
}
.row-actions { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.75rem; }
.btn-primary, .btn-ticket, .btn-ghost {
  border: 0;
  border-radius: 999px;
  padding: 0.55rem 0.95rem;
  cursor: pointer;
}
.btn-primary { background: var(--ink); color: var(--ivory); }
.btn-ticket { background: var(--ticket); color: #fff8f2; }
.btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn-primary:disabled, .btn-ticket:disabled, .btn-ghost:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
.hint { margin: 0.7rem 0 0; color: #4d5c54; font-size: 0.92rem; }
.stat-row { display: flex; gap: 1.4rem; }
.stat-row strong { font-family: var(--serif); font-size: 1.7rem; }
.math-list { margin: 0; }
.math-list div { display: grid; grid-template-columns: 7.2rem 1fr; gap: 0.5rem; padding: 0.35rem 0; border-top: 1px solid rgba(183, 168, 138, 0.4); }
.math-list dt { color: #5d6b63; font-size: 0.8rem; }
.math-list dd { margin: 0; font-family: var(--mono); font-size: 0.78rem; overflow-wrap: anywhere; }
.verify-ok { color: #24503f; font-weight: 500; }

.spread {
  width: min(1140px, calc(100% - 2rem));
  margin: 5rem auto 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
}
.spread h2 { font-size: clamp(2rem, 4vw, 3.1rem); margin: 0 0 0.8rem; }
.spread-figure {
  margin: 0;
  background: var(--ivory);
  border-radius: 28px;
  padding: 0.7rem;
  box-shadow: var(--shadow);
}
.spread-figure img { border-radius: 22px; width: 100%; height: auto; }
.spread-figure figcaption { padding: 0.7rem 0.4rem 0.3rem; color: #5d6b63; font-size: 0.92rem; }
.steps { padding-left: 1.15rem; }
.steps li { margin: 0.35rem 0; }

.notes {
  width: min(1140px, calc(100% - 2rem));
  margin: 4.5rem auto 0;
}
.notes h2, .log-wrap h2 { font-size: clamp(2rem, 4vw, 3rem); margin: 0 0 1rem; }
.note-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.note {
  background: rgba(246, 240, 228, 0.8);
  border-radius: 22px;
  padding: 1.1rem 1.15rem;
  box-shadow: 0 8px 18px rgba(18, 38, 31, 0.05);
}
.note h3 { font-family: var(--serif); margin: 0 0 0.4rem; }
.soon-row { margin-top: 1.4rem; display: flex; gap: 1rem; align-items: center; flex-wrap: wrap; }

.log-wrap {
  width: min(1140px, calc(100% - 2rem));
  margin: 3.5rem auto 0;
  background: rgba(246, 240, 228, 0.72);
  border-radius: 28px;
  padding: 1.3rem;
}
.table-scroll { overflow-x: auto; }
.log { width: 100%; border-collapse: collapse; }
.log th, .log td {
  text-align: left;
  padding: 0.55rem 0.4rem;
  border-bottom: 1px solid rgba(183, 168, 138, 0.45);
  font-size: 0.92rem;
}
.log td { font-family: var(--mono); font-size: 0.8rem; }
.log .empty td { font-family: var(--sans); color: #5d6b63; }

.footer {
  width: min(1140px, calc(100% - 2rem));
  margin: 3rem auto 2rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: #3b4a42;
}
.footer-links { display: flex; gap: 1rem; }
.footer a { color: var(--felt); }

.modal {
  position: fixed;
  inset: 0;
  background: rgba(18, 38, 31, 0.46);
  display: grid;
  place-items: center;
  z-index: 20;
  padding: 1rem;
}
.modal-card {
  width: min(520px, 100%);
  background: var(--ivory);
  border-radius: 24px;
  padding: 1.4rem 1.5rem 1.5rem;
  box-shadow: var(--shadow);
}
.soon-keep { font-family: var(--mono); font-size: 0.85rem; color: #3b4a42; }

@media (max-width: 900px) {
  .nav-links { display: none; }
  .tray-stage, .spread, .note-grid { grid-template-columns: 1fr; }
  .felt-tray { min-height: 440px; }
  .hero { margin-top: 1.4rem; }
}
@media (max-width: 640px) {
  .nav-ghost { display: none; }
  .hero h2 { font-size: 2.1rem; }
  .math-list div { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .opening-kicker, .opening-brand, .opening-line, .opening-tray, .opening-strip, .opening-die,
  .opening.is-die .opening-die, .ivory-die.is-rolling {
    animation: none !important;
    transition: none !important;
    opacity: 1;
    transform: none;
  }
}