/* ═══════════════════════════════════════════════════════════════
   HANABI — 川原木煙火店 · night-river program typography
   Palette: Night River #060810 · Sumi Panel #0c101b · Lantern Paper #efe3c8
            Ash Blue #7d8699 · Burst Gold #e9b34c · Peony #ef7f9b · Willow #9cc178
   ═══════════════════════════════════════════════════════════════ */

:root {
  --night: #060810;
  --panel: #0c101b;
  --paper: #efe3c8;
  --ash: #8b94a6;
  --gold: #e9b34c;
  --peony: #ef7f9b;
  --willow: #9cc178;
  --serif: "Shippori Mincho", "Hiragino Mincho ProN", serif;
  --caps: "Cormorant SC", "Shippori Mincho", serif;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --measure: 640px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html {
  background: var(--night);
  color-scheme: dark;
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: rgba(233, 179, 76, 0.32) #060810;
}
::-webkit-scrollbar { width: 11px; }
::-webkit-scrollbar-track { background: #060810; }
::-webkit-scrollbar-thumb {
  background: linear-gradient(rgba(233, 179, 76, 0.5), rgba(233, 179, 76, 0.22));
  border-radius: 6px;
  border: 3px solid #060810;
}

body {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.0625rem;
  line-height: 1.95;
  color: var(--paper);
  background: var(--night);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--gold); color: var(--night); }

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  border-radius: 2px;
}

.sr-only {
  position: absolute; width: 1px; height: 1px;
  clip-path: inset(50%); overflow: hidden; white-space: nowrap;
}

/* ── load veil: the river at first dark ──────────────────── */
.veil {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: #020309;
  pointer-events: none;
  animation: veilLift 1.5s var(--ease) 0.15s forwards;
}
@keyframes veilLift {
  to { opacity: 0; visibility: hidden; }
}

/* ── the sky ─────────────────────────────────────────────── */
#sky {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  display: block;
}

/* ── header ──────────────────────────────────────────────── */
.site-head {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem clamp(1.25rem, 4vw, 3rem) 1.6rem;
  background: linear-gradient(to bottom,
    rgba(6, 8, 16, 0.97) 0%,
    rgba(6, 8, 16, 0.88) 48%,
    rgba(6, 8, 16, 0.5) 76%,
    rgba(6, 8, 16, 0) 100%);
  pointer-events: none;
}
.site-head::before {
  content: "";
  position: absolute;
  inset: 0 0 6px 0;
  z-index: -1;
  backdrop-filter: blur(11px);
  -webkit-backdrop-filter: blur(11px);
  -webkit-mask-image: linear-gradient(to bottom, #000 42%, transparent);
  mask-image: linear-gradient(to bottom, #000 42%, transparent);
}
.site-head a { pointer-events: auto; }

.mark {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--paper);
  text-decoration: none;
}
.mon {
  width: 30px; height: 30px;
  color: var(--gold);
  transition: transform 0.9s var(--ease);
}
.mark:hover .mon { transform: rotate(45deg); }
.mark-text {
  font-family: var(--caps);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.22em;
  text-transform: lowercase;
}
.mark-jp {
  font-family: var(--serif);
  font-size: 0.68rem;
  letter-spacing: 0.3em;
  color: var(--ash);
  margin-left: 0.55rem;
}

.site-nav {
  display: flex;
  gap: clamp(1rem, 2.5vw, 2.2rem);
}
.site-nav a {
  font-family: var(--caps);
  font-weight: 600;
  font-size: 0.92rem;
  letter-spacing: 0.24em;
  text-transform: lowercase;
  color: var(--ash);
  text-decoration: none;
  position: relative;
  transition: color 0.45s var(--ease);
}
.site-nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: -5px;
  height: 1px;
  background: var(--gold);
  transition: right 0.6s var(--ease);
}
.site-nav a:hover { color: var(--gold); }
.site-nav a:hover::after { right: 0; }

.sound-toggle {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--caps);
  font-weight: 600;
  font-size: 0.92rem;
  letter-spacing: 0.24em;
  text-transform: lowercase;
  color: var(--ash);
  background: transparent;
  border: none;
  padding: 0;
  cursor: pointer;
  pointer-events: auto;
  transition: color 0.45s var(--ease);
}
.sound-toggle:hover { color: var(--gold); }
.snd-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  border: 1px solid var(--ash);
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.sound-toggle.is-on { color: var(--gold); }
.sound-toggle.is-on .snd-dot {
  background: var(--gold);
  border-color: var(--gold);
  box-shadow: 0 0 8px rgba(233, 179, 76, 0.8);
}

/* ── sky captions (fired shells announce themselves) ─────── */
#captions {
  position: fixed;
  inset: 0;
  z-index: 25;
  pointer-events: none;
}
.shot-caption {
  position: absolute;
  transform: translate(-50%, -50%);
  font-family: var(--caps);
  font-weight: 600;
  font-size: 0.86rem;
  letter-spacing: 0.3em;
  text-transform: lowercase;
  white-space: nowrap;
  color: var(--paper);
  text-shadow: 0 0 10px rgba(6, 8, 16, 0.9);
  opacity: 0;
  animation: captionLife 3.2s var(--ease) forwards;
}
.shot-caption span {
  font-family: var(--serif);
  font-size: 0.78rem;
  color: var(--gold);
  letter-spacing: 0.2em;
  margin-left: 0.35rem;
}
@keyframes captionLife {
  0%   { opacity: 0; transform: translate(-50%, -30%); }
  14%  { opacity: 0.95; transform: translate(-50%, -50%); }
  72%  { opacity: 0.85; }
  100% { opacity: 0; transform: translate(-50%, -78%); }
}
/* the crowd's shout, once, when the last crown lets go */
.shot-caption.tamaya {
  font-size: clamp(0.95rem, 1.6vw, 1.15rem);
  letter-spacing: 0.42em;
  text-align: center;
  color: var(--gold);
  animation-duration: 4.4s;
}
.shot-caption.tamaya span {
  display: block;
  font-size: clamp(1.35rem, 2.6vw, 1.8rem);
  color: var(--paper);
  letter-spacing: 0.32em;
  padding-left: 0.32em;
  margin: 0 0 0.4rem;
  text-shadow: 0 0 18px rgba(233, 179, 76, 0.35), 0 0 10px rgba(6, 8, 16, 0.9);
}

/* ── layout ground ───────────────────────────────────────── */
main { position: relative; z-index: 10; }

section {
  position: relative;
  max-width: var(--measure);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 2rem);
  scroll-margin-top: clamp(4.5rem, 10vh, 6.5rem);
}

/* the hush between bursts — literal darkness */
.manifesto { margin-block: 44vh 0; }
.catalog   { margin-block: 38vh 0; max-width: 880px; }
.program   { margin-block: 38vh 0; max-width: 760px; }
.lineage   { margin-block: 38vh 0; }
.finale    { margin-block: 46vh 0; text-align: center; }

/* ── hero ────────────────────────────────────────────────── */
.hero {
  min-height: 100svh;
  max-width: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding-bottom: 27svh;
  text-align: center;
}
.hero-eyebrow {
  font-size: 0.95rem;
  letter-spacing: 0.85em;
  padding-left: 0.85em; /* recenter: trailing tracking widens the line box */
  color: var(--gold);
  text-shadow: 0 0 14px rgba(6, 8, 16, 0.95), 0 0 4px rgba(6, 8, 16, 0.9);
  opacity: 0;
  animation: heroFade 1.6s var(--ease) 0.5s forwards;
}
.wordmark {
  font-size: clamp(3.4rem, 10.5vw, 7.5rem);
  font-weight: 600;
  line-height: 1.1;
  text-transform: uppercase;
  letter-spacing: 0.34em;
  padding-left: 0.34em; /* recenter tracked caps */
  margin: 0.5rem 0 1.1rem;
  opacity: 0;
  animation: wordmarkIn 2.4s var(--ease) 0.75s forwards;
}
.hero-line {
  font-family: var(--caps);
  font-weight: 600;
  font-size: 1.02rem;
  letter-spacing: 0.3em;
  text-transform: lowercase;
  color: var(--paper);
  opacity: 0;
  animation: heroFade 1.6s var(--ease) 1.35s forwards;
}
.hero-sub {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.85rem;
  letter-spacing: 0.26em;
  color: var(--ash);
}
@media (max-width: 480px) {
  .hero-line { font-size: 0.92rem; letter-spacing: 0.22em; }
  .hero-sub { font-size: 0.72rem; letter-spacing: 0.15em; }
}
.dot { color: var(--gold); }
.nb { white-space: nowrap; }

@keyframes heroFade {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: none; }
}
@keyframes wordmarkIn {
  0%   { opacity: 0; letter-spacing: 0.6em; filter: blur(6px); }
  100% { opacity: 1; letter-spacing: 0.34em; filter: none; }
}

.scroll-cue {
  position: absolute;
  bottom: 4.5svh;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
  font-family: var(--caps);
  font-weight: 500;
  font-size: 0.8rem;
  letter-spacing: 0.32em;
  text-transform: lowercase;
  color: var(--ash);
  text-decoration: none;
  opacity: 0;
  animation: heroFade 1.6s var(--ease) 2.2s forwards;
  transition: color 0.45s var(--ease);
}
.scroll-cue:hover { color: var(--gold); }
.cue-line {
  width: 1px;
  height: 44px;
  background: linear-gradient(to bottom, transparent, var(--gold));
  animation: cuePulse 3.2s var(--ease) infinite;
}
@keyframes cuePulse {
  0%, 100% { transform: scaleY(0.55); opacity: 0.4; transform-origin: top; }
  50%      { transform: scaleY(1); opacity: 1; transform-origin: top; }
}

/* ── scroll reveal ───────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 1.2s var(--ease), transform 1.2s var(--ease);
}
.reveal.in { opacity: 1; transform: none; }

/* ── section furniture ───────────────────────────────────── */
.sec-head { margin-bottom: 2.6rem; }
.sec-kicker {
  font-family: var(--caps);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.42em;
  text-transform: lowercase;
  color: var(--gold);
  margin-bottom: 0.9rem;
}
.sec-kanji {
  font-family: var(--serif);
  font-size: 0.78rem;
  color: var(--ash);
  letter-spacing: 0.3em;
  margin-left: 0.7rem;
}
section h2 {
  font-size: clamp(1.7rem, 4vw, 2.35rem);
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.045em;
  text-wrap: balance;
}
.sec-note {
  margin-top: 1.1rem;
  color: var(--ash);
  font-size: 0.98rem;
  max-width: 56ch;
}

.vertical-orn {
  position: absolute;
  top: 0.4rem;
  right: calc(-1 * clamp(3rem, 9vw, 7.5rem));
  writing-mode: vertical-rl;
  text-orientation: upright;
  font-size: 0.92rem;
  letter-spacing: 0.55em;
  color: rgba(139, 148, 166, 0.5);
  user-select: none;
}
.catalog .vertical-orn, .lineage .vertical-orn { left: calc(-1 * clamp(3rem, 9vw, 7.5rem)); right: auto; }

/* ── manifesto ───────────────────────────────────────────── */
.mani-lead {
  font-size: clamp(1.55rem, 3.6vw, 2.1rem);
  font-weight: 500;
  line-height: 1.55;
  letter-spacing: 0.04em;
  margin-bottom: 1.8rem;
  text-wrap: balance;
}
.manifesto p + p { margin-top: 1.5rem; }
.mani-note {
  color: var(--ash);
  font-size: 0.98rem;
}
.mani-note em {
  font-style: normal;
  color: var(--gold);
  letter-spacing: 0.2em;
}

/* ── caliber selector ────────────────────────────────────── */
.caliber { border: none; margin-bottom: 2.4rem; }
.caliber-legend {
  font-family: var(--caps);
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.38em;
  text-transform: lowercase;
  color: var(--ash);
  margin-bottom: 0.9rem;
}
.caliber-row { display: flex; gap: 0.7rem; flex-wrap: wrap; }
.cal-btn {
  font-family: var(--serif);
  background: transparent;
  color: var(--ash);
  border: 1px solid rgba(139, 148, 166, 0.28);
  border-radius: 2px;
  padding: 0.55rem 1.1rem 0.6rem;
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  cursor: pointer;
  transition: color 0.4s var(--ease), border-color 0.4s var(--ease), background 0.4s var(--ease);
}
.cal-jp { font-size: 1.05rem; letter-spacing: 0.1em; }
.cal-en {
  font-family: var(--caps);
  font-weight: 600;
  font-size: 0.88rem;
  letter-spacing: 0.14em;
  text-transform: lowercase;
}
.cal-cm { font-size: 0.72rem; color: inherit; opacity: 0.85; letter-spacing: 0.06em; }
.cal-btn:hover { color: var(--paper); border-color: rgba(233, 179, 76, 0.55); }
.cal-btn.is-active {
  color: var(--gold);
  border-color: var(--gold);
  background: rgba(233, 179, 76, 0.07);
}

/* ── shell cards ─────────────────────────────────────────── */
.shell-grid {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.4rem;
}
.shell-card {
  position: relative;
  overflow: hidden;
  background: linear-gradient(160deg, rgba(12, 16, 27, 0.92), rgba(9, 12, 20, 0.85));
  border: 1px solid rgba(139, 148, 166, 0.16);
  border-radius: 3px;
  padding: 1.9rem 1.7rem 1.7rem;
  transition: border-color 0.6s var(--ease), transform 0.6s var(--ease);
}
.shell-card:hover {
  border-color: color-mix(in srgb, var(--shell) 55%, transparent);
  transform: translateY(-3px);
}
.card-kanji {
  position: absolute;
  top: -1.4rem;
  right: 0.4rem;
  font-size: 7.5rem;
  line-height: 1;
  font-weight: 400;
  color: color-mix(in srgb, var(--shell) 11%, transparent);
  user-select: none;
  transition: color 0.7s var(--ease), transform 0.7s var(--ease);
}
.shell-card:hover .card-kanji {
  color: color-mix(in srgb, var(--shell) 22%, transparent);
  transform: translateY(-4px);
}
.card-id {
  font-family: var(--caps);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.34em;
  color: var(--ash);
  margin-bottom: 0.5rem;
}
.card-name {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  margin-bottom: 0.9rem;
}
.card-en {
  display: block;
  font-family: var(--caps);
  font-weight: 500;
  font-size: 0.92rem;
  letter-spacing: 0.26em;
  text-transform: lowercase;
  color: color-mix(in srgb, var(--shell) 80%, var(--paper));
  margin-top: 0.2rem;
}
.card-copy {
  font-size: 0.94rem;
  line-height: 1.85;
  color: color-mix(in srgb, var(--paper) 82%, var(--ash));
  margin-bottom: 1.1rem;
}
.card-spec {
  font-family: var(--caps);
  font-weight: 500;
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: lowercase;
  color: var(--ash);
  margin-bottom: 1.4rem;
}

.fire-btn {
  font-family: var(--caps);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.28em;
  text-transform: lowercase;
  color: var(--shell);
  background: transparent;
  border: 1px solid color-mix(in srgb, var(--shell) 45%, transparent);
  border-radius: 2px;
  padding: 0.7rem 1.4rem 0.75rem;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: color 0.4s var(--ease), border-color 0.4s var(--ease), opacity 0.4s;
}
.fire-btn::before {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  height: 1px; width: 100%;
  background: var(--shell);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.7s var(--ease);
}
.fire-btn:hover { color: var(--paper); border-color: var(--shell); }
.fire-btn:hover::before { transform: scaleX(1); }
.fire-btn:disabled,
.fire-btn[aria-disabled="true"] {
  opacity: 0.45;
  cursor: wait;
}
/* while the shell climbs, the fuse burns across the button */
.fire-btn:disabled::before,
.fire-btn[aria-disabled="true"]::before {
  transform: scaleX(1);
  transition: transform 3s cubic-bezier(0.3, 0.1, 0.65, 1);
}

/* ── calibers table ──────────────────────────────────────── */
.calibers-table { margin-top: 3.2rem; }
.table-title {
  font-family: var(--caps);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.34em;
  text-transform: lowercase;
  margin-bottom: 1.2rem;
}
.table-note {
  color: var(--ash);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  margin-left: 0.8rem;
}
.tr {
  display: grid;
  grid-template-columns: 1.5fr 0.9fr 0.9fr 0.8fr 0.9fr;
  gap: 0.6rem;
  padding: 0.7rem 0.2rem;
  border-bottom: 1px solid rgba(139, 148, 166, 0.14);
  font-size: 0.95rem;
}
.tr.th {
  font-family: var(--caps);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.22em;
  text-transform: lowercase;
  color: var(--ash);
  border-bottom-color: rgba(233, 179, 76, 0.35);
}
.tr b { font-weight: 500; letter-spacing: 0.1em; margin-right: 0.45rem; color: var(--gold); }
.table-foot {
  margin-top: 1.3rem;
  color: var(--ash);
  font-size: 0.92rem;
  max-width: 58ch;
}

/* ── program calendar ────────────────────────────────────── */
.cal-list { list-style: none; }
.cal-list li {
  display: grid;
  grid-template-columns: 8.5rem 1fr auto;
  gap: 1.4rem;
  align-items: baseline;
  padding: 1.35rem 0;
  border-bottom: 1px solid rgba(139, 148, 166, 0.13);
}
.cal-list li:first-child { border-top: 1px solid rgba(233, 179, 76, 0.35); }
.cal-date {
  font-family: var(--caps);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.18em;
  text-transform: lowercase;
  color: var(--gold);
  white-space: nowrap;
}
.cal-name { font-size: 1.08rem; font-weight: 500; letter-spacing: 0.03em; }
.cal-jp2 { font-size: 0.85rem; color: var(--ash); letter-spacing: 0.25em; margin-left: 0.6rem; }
.cal-detail {
  display: block;
  font-size: 0.9rem;
  font-weight: 400;
  line-height: 1.8;
  color: var(--ash);
  margin-top: 0.35rem;
}
.cal-count {
  font-family: var(--caps);
  font-weight: 600;
  font-size: 0.88rem;
  letter-spacing: 0.16em;
  text-transform: lowercase;
  color: var(--ash);
  white-space: nowrap;
}
.program-note {
  margin-top: 2.2rem;
  color: var(--ash);
  font-size: 0.95rem;
  max-width: 58ch;
}

/* ── lineage ─────────────────────────────────────────────── */
.gen-list {
  list-style: none;
  position: relative;
  padding-left: 4.4rem;
}
.gen-list::before {
  content: "";
  position: absolute;
  left: 1.05rem;
  top: 0.8rem;
  bottom: 0.8rem;
  width: 1px;
  background: linear-gradient(to bottom,
    rgba(233, 179, 76, 0.55),
    rgba(139, 148, 166, 0.2) 30%,
    rgba(139, 148, 166, 0.2) 70%,
    rgba(233, 179, 76, 0.55));
}
.gen { position: relative; padding: 1.6rem 0; }
.gen + .gen { border-top: 1px solid rgba(139, 148, 166, 0.1); }
.gen-no {
  position: absolute;
  left: -4.4rem;
  top: 1.75rem;
  width: 2.1rem;
  height: 2.1rem;
  display: grid;
  place-items: center;
  font-family: var(--caps);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--ash);
  background: var(--night);
  border: 1px solid rgba(139, 148, 166, 0.35);
  border-radius: 50%;
}
.gen.is-current .gen-no {
  color: var(--night);
  background: var(--gold);
  border-color: var(--gold);
}
.gen-name {
  font-size: 1.28rem;
  font-weight: 600;
  letter-spacing: 0.05em;
}
.gen-jp {
  display: inline-block;
  white-space: nowrap;
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--ash);
  letter-spacing: 0.28em;
  margin-left: 0.7rem;
}
.gen-years {
  font-family: var(--caps);
  font-weight: 600;
  font-size: 0.84rem;
  letter-spacing: 0.26em;
  text-transform: lowercase;
  color: var(--gold);
  margin: 0.3rem 0 0.7rem;
}
.gen-copy {
  font-size: 0.97rem;
  line-height: 1.9;
  color: color-mix(in srgb, var(--paper) 84%, var(--ash));
  max-width: 54ch;
}

/* ── finale ──────────────────────────────────────────────── */
.finale .sec-head { margin-bottom: 1.4rem; }
.finale .sec-kicker { padding-left: 0.42em; }
.finale-copy { color: var(--ash); max-width: 44ch; margin-inline: auto; }
#finale-sentinel { height: 1px; }
.encore-btn {
  margin-top: 2.4rem;
  font-family: var(--caps);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.3em;
  text-transform: lowercase;
  color: var(--gold);
  background: transparent;
  border: 1px solid rgba(233, 179, 76, 0.5);
  border-radius: 2px;
  padding: 0.85rem 2.2rem 0.9rem;
  cursor: pointer;
  transition: background 0.5s var(--ease), color 0.5s var(--ease), opacity 0.6s;
}
.encore-btn:hover { background: rgba(233, 179, 76, 0.12); }
.encore-btn[aria-disabled="true"] { opacity: 0.4; cursor: wait; }
.encore-btn span { font-family: var(--serif); font-size: 0.8rem; letter-spacing: 0.3em; margin-left: 0.6rem; color: var(--ash); }

/* content bows out while the sky fills */
.finale-dim main > section:not(.finale),
.finale-dim .site-head,
.finale-dim .colophon {
  opacity: 0.09;
  pointer-events: none;
  transition: opacity 1.6s var(--ease);
}
main > section, .site-head, .colophon { transition: opacity 1.6s var(--ease); }
.finale-dim .finale .sec-head,
.finale-dim .finale-copy { opacity: 0.38; transition: opacity 1.6s var(--ease); }
.finale .sec-head, .finale-copy { transition: opacity 1.6s var(--ease); }

/* ── colophon ────────────────────────────────────────────── */
.colophon {
  position: relative;
  z-index: 10;
  text-align: center;
  padding: 15vh 1.5rem 31vh; /* rest above the waterline — the page ends on open river */
  color: var(--ash);
  font-size: 0.92rem;
  line-height: 2.1;
  text-shadow: 0 0 12px rgba(6, 8, 16, 0.9);
}
.colo-mark {
  font-size: 1.05rem;
  letter-spacing: 0.6em;
  padding-left: 0.6em;
  color: rgba(233, 179, 76, 0.75);
  margin-bottom: 1.2rem;
}
.colo-small { margin-top: 1.1rem; font-size: 0.82rem; opacity: 0.85; }

/* ── responsive ──────────────────────────────────────────── */
@media (max-width: 1100px) {
  .vertical-orn { display: none; }
}

@media (max-width: 760px) {
  body { font-size: 1rem; }
  .site-nav a, .sound-toggle { font-size: 0.78rem; letter-spacing: 0.16em; }
  .site-nav { gap: 0.9rem; }
  .site-nav a[href="#finale"] { display: none; }
  .mark-jp { display: none; }
  .mark-text { font-size: 0.95rem; }
  .hero { padding-bottom: 24svh; }
  .wordmark { letter-spacing: 0.26em; }
  @keyframes wordmarkIn {
    0%   { opacity: 0; letter-spacing: 0.5em; filter: blur(6px); }
    100% { opacity: 1; letter-spacing: 0.26em; filter: none; }
  }
  .manifesto, .catalog, .program, .lineage { margin-block: 30vh 0; }
  .finale { margin-block: 34vh 0; }
  .shell-grid { grid-template-columns: 1fr; }
  .caliber-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
  }
  .cal-btn {
    flex-direction: column;
    align-items: center;
    gap: 0.1rem;
    text-align: center;
    padding: 0.6rem 0.3rem 0.65rem;
  }
  .card-spec { letter-spacing: 0.12em; font-size: 0.74rem; }
  .cal-list li {
    grid-template-columns: 1fr;
    gap: 0.3rem;
    padding: 1.2rem 0;
  }
  .cal-count { justify-self: start; margin-top: 0.2rem; }
  .tr { grid-template-columns: 1.3fr 0.9fr 0.9fr; font-size: 0.88rem; }
  .tr span:nth-child(4), .tr span:nth-child(5) { display: none; }
  .gen-list { padding-left: 3.4rem; }
  .gen-no { left: -3.4rem; }
  .gen-list::before { left: 1.05rem; }
  .colophon { padding: 11vh 1.25rem 25vh; }
}

@media (max-width: 420px) {
  .site-head { padding: 0.9rem 1rem 1.3rem; }
  .site-nav { gap: 0.7rem; }
  .site-nav a[href="#lineage"] { display: none; }
}

@media (max-width: 480px) {
  /* long masters' names wrap: stack the kanji reading cleanly under them */
  .gen-jp { display: block; margin: 0.15rem 0 0; }
}

/* ── reduced motion ──────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .veil { animation: none; opacity: 0; visibility: hidden; }
  .hero-eyebrow, .wordmark, .hero-line, .scroll-cue {
    animation: none;
    opacity: 1;
  }
  .cue-line { animation: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .mon, .shell-card, .card-kanji, .fire-btn::before { transition: none; }
  .shot-caption {
    animation: none;
    opacity: 0.9;
    transform: translate(-50%, -50%);
  }
  .finale-dim main > section:not(.finale),
  .finale-dim .site-head,
  .finale-dim .colophon { opacity: 1; }
}