/* ============================================================
   加瀬BOYZ 地元応援スタンプラリー
   ============================================================ */

:root {
  --ink: #040506;
  --ink-2: #0a0e11;
  --ink-3: #10161a;
  --paper: #f4f1ea;
  --mute: #9aa6aa;
  --line: rgba(244, 241, 234, 0.13);
  --neon: #4fe6e0;
  --neon-soft: rgba(79, 230, 224, 0.35);
  --steel: #6fa7cb;
  --lime: #e2f0c0;
  --shade: #3f484c;

  --f-display: "Dela Gothic One", "Hiragino Sans", "Yu Gothic", sans-serif;
  --f-pop: "Mochiy Pop One", "Dela Gothic One", "Hiragino Maru Gothic ProN", sans-serif;
  --f-body: "Zen Kaku Gothic New", "Hiragino Sans", "Yu Gothic", sans-serif;

  --gutter: clamp(16px, 5vw, 64px);
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  overflow-x: clip;
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.8;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "palt" 1;
  word-break: auto-phrase;
  line-break: strict;
}

/* film grain (static tile) */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 100;
  pointer-events: none;
  opacity: 0.14;
  background: url("assets/grain.png") repeat;
  background-size: 160px 160px;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
p, h1, h2, h3, ul, ol, figure { margin: 0; }

:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 4px;
  border-radius: 6px;
}

.sr-defs { position: absolute; width: 0; height: 0; overflow: hidden; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

.tategaki {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-feature-settings: normal;
}

/* ---------- buttons ---------- */

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  white-space: nowrap;
  isolation: isolate;
  overflow: hidden;
}

.btn--pill {
  border: 2px solid var(--paper);
  border-radius: 999px;
  font-family: var(--f-pop);
  color: var(--steel);
  background: rgba(4, 5, 6, 0.4);
  box-shadow: 0 0 0 0 var(--neon-soft), inset 0 0 24px rgba(111, 167, 203, 0.12);
  transition: color 0.35s var(--ease), background-color 0.35s var(--ease), box-shadow 0.35s var(--ease), translate 0.35s var(--ease);
}

.btn--pill::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(110deg, transparent 30%, rgba(255, 255, 255, 0.55) 50%, transparent 70%);
  translate: -120% 0;
  transition: translate 0.8s var(--ease);
}

.btn--pill:hover,
.btn--pill:focus-visible {
  color: var(--ink);
  background-color: var(--paper);
  box-shadow: 0 0 0 6px rgba(79, 230, 224, 0.18), 0 0 48px rgba(79, 230, 224, 0.45);
  translate: 0 -2px;
}

.btn--pill:hover::before,
.btn--pill:focus-visible::before { translate: 120% 0; }

.btn--sm {
  padding: 8px 16px;
  border-width: 1.5px;
  font-size: 12px;
  letter-spacing: 0.04em;
}

.btn--xl {
  padding: clamp(22px, 3.2vw, 44px) clamp(30px, 5vw, 76px);
  border-width: 3px;
  font-size: clamp(17px, 2.2vw, 30px);
  letter-spacing: 0.06em;
}

/* ---------- header ---------- */

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px var(--gutter);
  padding-top: max(14px, env(safe-area-inset-top));
  transition: background-color 0.4s var(--ease), border-color 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}

.site-header__logo img {
  width: auto;
  height: 30px;
  opacity: 0;
  translate: 0 -6px;
  transition: opacity 0.4s var(--ease), translate 0.4s var(--ease);
}

.site-header .btn { margin-left: auto; }

.site-header.is-scrolled {
  background-color: rgba(4, 5, 6, 0.92);
  border-bottom-color: var(--line);
}

.site-header.is-scrolled .site-header__logo img { opacity: 1; translate: 0 0; }

/* ---------- neon line art ---------- */

.neon {
  position: absolute;
  z-index: 2;
  height: auto;
  pointer-events: none;
  will-change: opacity, translate;
  animation: flicker var(--flick, 7s) linear infinite, float var(--float, 9s) ease-in-out infinite;
}

.is-offscreen .neon,
.is-offscreen .hero__scroll::after,
.ticker.is-offscreen .ticker__track { animation-play-state: paused; }

@keyframes flicker {
  0%, 17%, 19.5%, 22%, 61%, 63%, 100% { opacity: 1; }
  18%, 21%, 62% { opacity: 0.32; }
}

@keyframes float {
  0%, 100% { translate: 0 0; }
  50% { translate: 0 -10px; }
}

/* ---------- hero ---------- */

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  overflow: clip;
}

.hero__photo {
  position: absolute;
  top: 50%;
  right: 0;
  width: min(64vw, 112svh);
  aspect-ratio: 1;
  translate: 0 -50%;
}

.hero__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  animation: heroPhoto 2.6s var(--ease) both;
}

.hero__photo::after {
  content: "";
  position: absolute;
  inset: -1px;
  background:
    linear-gradient(90deg, var(--ink) 0%, rgba(4, 5, 6, 0) 26%),
    linear-gradient(0deg, var(--ink) 0%, rgba(4, 5, 6, 0) 22%),
    linear-gradient(180deg, var(--ink) 0%, rgba(4, 5, 6, 0) 14%);
  pointer-events: none;
}

@keyframes heroPhoto {
  from { opacity: 0; scale: 1.1; filter: blur(8px) brightness(0.5); }
  to { opacity: 1; scale: 1; filter: none; }
}

.hero__copy {
  position: absolute;
  z-index: 3;
  top: 50%;
  left: clamp(24px, 15vw, 260px);
  translate: 0 -50%;
  font-family: var(--f-display);
  font-size: min(7svh, 92px);
  line-height: 1.1;
  letter-spacing: 0.05em;
  color: #fff;
  text-shadow: 0.07em 0.07em 0 var(--shade), 0 0 30px rgba(79, 230, 224, 0.22);
  white-space: nowrap;
}

.neon--mandolin {
  top: max(70px, 9svh);
  left: clamp(8px, 4vw, 80px);
  width: calc(clamp(120px, 14vw, 225px) * 1.249);
  rotate: 36deg;
  --flick: 8s;
}

.hero__scroll {
  position: absolute;
  z-index: 3;
  left: 50%;
  bottom: 22px;
  translate: -50% 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-family: var(--f-display);
  font-size: 10px;
  letter-spacing: 0.4em;
  color: var(--mute);
}

.hero__scroll::after {
  content: "";
  width: 1px;
  height: 48px;
  background: linear-gradient(var(--neon), transparent);
  animation: scrollLine 2.2s var(--ease) infinite;
  transform-origin: top;
}

@keyframes scrollLine {
  0% { scale: 1 0; opacity: 1; }
  60% { scale: 1 1; opacity: 1; }
  100% { scale: 1 1; opacity: 0; }
}

/* split chars */
.ch {
  display: inline-block;
  opacity: 0;
  animation: chIn 0.8s var(--ease) forwards;
  animation-delay: calc(var(--i) * 75ms + 0.5s);
}

@keyframes chIn {
  from { opacity: 0; translate: 0 -0.5em; filter: blur(6px); }
  to { opacity: 1; translate: 0 0; filter: none; }
}

/* ---------- title ---------- */

.title {
  position: relative;
  padding: clamp(96px, 16vh, 180px) var(--gutter) clamp(88px, 12vh, 150px);
  text-align: center;
  overflow: clip;
}

.title::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 38%;
  width: min(1100px, 140vw);
  aspect-ratio: 1.6;
  translate: -50% -50%;
  background: radial-gradient(closest-side, rgba(79, 230, 224, 0.12), transparent 70%);
  pointer-events: none;
}

.title__heading {
  position: relative;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  font-weight: 400;
}

.arc-mark {
  display: block;
  width: min(860px, 90vw);
  position: relative;
  z-index: 1;
}

.arc-mark svg { display: block; width: 100%; height: auto; overflow: visible; }

.arc-mark text {
  font-family: var(--f-display);
  font-size: 128px;
  font-style: italic;
}

.arc-mark__text { fill: #fff; }
.arc-mark__shadow { fill: var(--shade); transform: translate(7px, 9px); }

.title__logo {
  position: relative;
  z-index: 2;
  width: min(640px, 76vw);
  margin-top: calc(min(860px, 90vw) * -0.06);
  filter: drop-shadow(0 24px 40px rgba(0, 0, 0, 0.8));
}

.title__main {
  display: block;
  margin-top: clamp(8px, 2vw, 24px);
  font-family: var(--f-pop);
  font-size: clamp(28px, 8vw, 104px);
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: #fff;
  text-shadow: 0.05em 0.05em 0 var(--shade);
  white-space: nowrap;
}

.title .btn--xl { margin-top: clamp(48px, 8vh, 96px); position: relative; z-index: 3; }

.neon--mountain {
  top: clamp(40px, 6vw, 90px);
  left: clamp(12px, 6vw, 120px);
  width: calc(clamp(150px, 22vw, 330px) * 1.189);
  --flick: 9s;
  --float: 11s;
}

.neon--notes {
  top: 44%;
  left: clamp(8px, 7vw, 140px);
  width: calc(clamp(38px, 4.6vw, 72px) * 1.903);
  --flick: 6s;
  --float: 7s;
}

.neon--butterfly {
  top: clamp(90px, 14vw, 220px);
  right: clamp(4px, 7vw, 140px);
  width: calc(clamp(100px, 14vw, 200px) * 1.333);
  rotate: -10deg;
  --flick: 10s;
  --float: 6s;
}

/* ---------- ticker ---------- */

.ticker {
  position: relative;
  z-index: 4;
  overflow: hidden;
  background: var(--neon);
  color: var(--ink);
  rotate: -2deg;
  margin-inline: -4vw;
  padding: 14px 0 12px;
  box-shadow: 0 0 60px rgba(79, 230, 224, 0.35);
}

.ticker__track {
  display: flex;
  align-items: center;
  gap: 0.9em;
  width: max-content;
  font-family: var(--f-display);
  font-size: clamp(18px, 2.4vw, 30px);
  line-height: 1;
  white-space: nowrap;
  animation: ticker 32s linear infinite;
}

.ticker__track i { font-style: normal; font-size: 0.7em; }

@keyframes ticker {
  to { translate: -50% 0; }
}

/* ---------- section heads ---------- */

.sec-head {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin-bottom: clamp(44px, 6vw, 84px);
  font-weight: 400;
  text-align: center;
}

.sec-head__kicker {
  font-family: var(--f-display);
  font-size: 11px;
  letter-spacing: 0.5em;
  padding-left: 0.5em;
  color: var(--neon);
}

.sec-head__text {
  font-family: var(--f-display);
  font-size: clamp(32px, 5vw, 60px);
  line-height: 1.1;
  letter-spacing: 0.04em;
}

/* ---------- details ---------- */

.details {
  max-width: 1320px;
  margin: 0 auto;
  padding: clamp(110px, 14vw, 190px) var(--gutter) clamp(72px, 9vw, 130px);
}

.details__grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(32px, 5vw, 80px);
  align-items: center;
}

.video__facade,
.video iframe {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 0;
  border-radius: 10px;
  background: #000;
  box-shadow: 0 0 0 1px var(--line), 0 40px 90px -30px rgba(79, 230, 224, 0.35);
}

.video__facade {
  position: relative;
  padding: 0;
  overflow: hidden;
  cursor: pointer;
}

.video__facade img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.78) saturate(0.95);
  transition: filter 0.5s var(--ease), scale 0.8s var(--ease);
}

.video__facade:hover img,
.video__facade:focus-visible img { filter: brightness(1) saturate(1.05); scale: 1.03; }

.video__play {
  position: absolute;
  left: 50%;
  top: 50%;
  width: clamp(64px, 7vw, 92px);
  aspect-ratio: 1;
  translate: -50% -50%;
  border-radius: 50%;
  border: 2px solid #fff;
  background: rgba(4, 5, 6, 0.55);
  transition: background-color 0.35s var(--ease), scale 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

.video__play::before {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
  width: 30%;
  height: 34%;
  translate: 10% 0;
  background: #fff;
  clip-path: polygon(0 0, 100% 50%, 0 100%);
  transition: background-color 0.35s var(--ease);
}

.video__facade:hover .video__play,
.video__facade:focus-visible .video__play {
  background: var(--neon);
  border-color: var(--neon);
  scale: 1.08;
  box-shadow: 0 0 50px rgba(79, 230, 224, 0.6);
}

.video__facade:hover .video__play::before,
.video__facade:focus-visible .video__play::before { background: var(--ink); }

.video__caption {
  margin-top: 14px;
  font-size: 13px;
  color: var(--mute);
  letter-spacing: 0.02em;
}

.about__name {
  font-family: var(--f-display);
  font-weight: 400;
  font-size: clamp(48px, 5.4vw, 88px);
  line-height: 1.05;
  letter-spacing: 0.01em;
  white-space: nowrap;
  margin-bottom: clamp(20px, 2.4vw, 32px);
  background: linear-gradient(180deg, #fff 40%, #a7b2b5);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.about__text span {
  display: block;
  font-size: clamp(15px, 1.35vw, 18px);
  line-height: 2;
}

.about__collab {
  margin-top: clamp(24px, 3vw, 36px);
  padding: 16px 20px;
  border-left: 3px solid var(--neon);
  background: linear-gradient(90deg, rgba(79, 230, 224, 0.1), rgba(79, 230, 224, 0));
  font-weight: 700;
  font-size: clamp(16px, 1.5vw, 20px);
  line-height: 1.7;
}

/* ---------- system ---------- */

.system {
  max-width: 1320px;
  margin: 0 auto;
  padding: clamp(72px, 9vw, 130px) var(--gutter);
}

.system__lead {
  font-family: var(--f-display);
  font-size: clamp(17px, 2vw, 30px);
  line-height: 1.7;
  text-align: center;
  word-break: auto-phrase;
  text-wrap: pretty;
}

.system__lead > span { display: block; }
.system__lead em { font-style: normal; color: var(--neon); }

.system__row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(32px, 4vw, 64px);
  align-items: center;
  margin-top: clamp(52px, 7vw, 100px);
}

.system__hint {
  display: flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--f-display);
  font-size: clamp(18px, 2vw, 26px);
  line-height: 1.4;
}

.system__arrow {
  display: inline-block;
  font-size: 1.5em;
  line-height: 1;
  color: var(--neon);
  text-shadow: 0 0 18px rgba(79, 230, 224, 0.7);
  animation: nudge 1.6s var(--ease) infinite;
}

@keyframes nudge {
  0%, 100% { translate: 0 0; }
  50% { translate: -8px 0; }
}

.period {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: clamp(14px, 2.6vw, 40px);
  margin-top: clamp(24px, 3vw, 40px);
}

.period__arrow {
  font-size: clamp(22px, 2.6vw, 38px);
  line-height: 1;
  color: var(--paper);
  padding-top: 0.6em;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  50% { opacity: 0.35; }
}

.date {
  display: inline-flex;
  flex-direction: column;
  line-height: 1;
}

.date__y {
  font-family: var(--f-display);
  font-size: clamp(15px, 1.5vw, 22px);
  letter-spacing: 0.08em;
  color: var(--mute);
  margin-bottom: 0.3em;
}

.date__md {
  display: flex;
  align-items: baseline;
  font-family: var(--f-display);
}

.date__md b {
  font-weight: 400;
  font-size: clamp(48px, 5vw, 84px);
  letter-spacing: -0.02em;
  background: linear-gradient(180deg, #fff 35%, #9ba6a9);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.date__md small {
  font-size: clamp(17px, 1.9vw, 30px);
  margin: 0 0.12em 0 0.06em;
}

.day {
  display: inline-grid;
  place-items: center;
  align-self: center;
  width: 1.9em;
  height: 1.9em;
  margin-left: 0.3em;
  border-radius: 50%;
  background: var(--lime);
  color: #1a2833;
  font-family: var(--f-body);
  font-weight: 700;
  font-size: clamp(14px, 1.4vw, 20px);
  line-height: 1;
  box-shadow: 0 0 0 3px #1c2b36, 0 0 22px rgba(226, 240, 192, 0.45);
}

/* ---------- message ---------- */

.message {
  position: relative;
  padding: clamp(100px, 14vw, 210px) 0 clamp(80px, 10vw, 150px);
  overflow: clip;
}

.message::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line), transparent);
}

.message__inner {
  display: grid;
  grid-template-columns: 1.45fr 1fr;
  gap: clamp(32px, 5vw, 80px);
  align-items: end;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.message__head {
  font-family: var(--f-display);
  font-weight: 400;
  font-size: clamp(34px, 5.4vw, 86px);
  line-height: 1.25;
  letter-spacing: 0.01em;
  word-break: auto-phrase;
}

.cursor {
  color: var(--neon);
  text-shadow: 0 0 20px rgba(79, 230, 224, 0.8);
  animation: blink 1.05s steps(1) infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

.message__body p {
  font-weight: 700;
  font-size: clamp(15px, 1.3vw, 18px);
  line-height: 2.1;
  text-wrap: pretty;
}

.message__body .message__call {
  margin-top: 20px;
  font-family: var(--f-display);
  font-weight: 400;
  font-size: clamp(22px, 2.2vw, 30px);
  line-height: 1.4;
  color: var(--neon);
}

.scenes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(14px, 2vw, 30px);
  max-width: 1400px;
  margin: 0 auto;
  padding: clamp(56px, 8vw, 110px) var(--gutter) 40px;
}

.scene {
  position: relative;
  aspect-ratio: 16 / 10;
  border-radius: 22px;
  overflow: hidden;
  rotate: var(--r, 0deg);
  box-shadow: 0 30px 70px -30px rgba(0, 0, 0, 0.9), 0 0 0 1px var(--line);
  transition: rotate 0.6s var(--ease), scale 0.6s var(--ease), opacity 0.9s var(--ease), translate 0.9s var(--ease);
}

.scene:nth-child(1) { --r: -2.5deg; }
.scene:nth-child(2) { --r: 1.5deg; margin-top: clamp(16px, 3vw, 44px); }
.scene:nth-child(3) { --r: -1deg; }

.scene img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85) brightness(0.88);
  transition: filter 0.6s var(--ease);
}

.scene:hover { rotate: 0deg; scale: 1.03; }
.scene:hover img { filter: none; }

/* ---------- prizes ---------- */

.prizes {
  position: relative;
  max-width: 1320px;
  margin: 0 auto;
  padding: clamp(100px, 13vw, 180px) var(--gutter) clamp(80px, 10vw, 140px);
}

.tiers {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 2vw, 28px);
}

.tier {
  --pad: clamp(24px, 2.6vw, 38px);
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 560px;
  padding: var(--pad) var(--pad) 0;
  border-radius: 22px;
  overflow: hidden;
  background:
    radial-gradient(120% 60% at 100% 0%, var(--glow), transparent 60%),
    linear-gradient(180deg, var(--ink-3), var(--ink-2));
  box-shadow: 0 0 0 1px var(--line);
  transition: box-shadow 0.5s var(--ease), translate 0.9s var(--ease), opacity 0.9s var(--ease);
}

.tier--5 { --accent: #9b4dff; --glow: rgba(155, 77, 255, 0.16); }
.tier--10 { --accent: #f4f1ea; --glow: rgba(244, 241, 234, 0.1); }
.tier--15 { --accent: #ff8a3d; --glow: rgba(255, 138, 61, 0.14); }

.tier:hover {
  box-shadow: 0 0 0 1px var(--accent), 0 40px 90px -40px var(--accent);
}

.tier__num {
  position: absolute;
  top: 0.12em;
  right: 0.16em;
  font-family: var(--f-display);
  font-size: clamp(110px, 11vw, 170px);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(244, 241, 234, 0.12);
  pointer-events: none;
}

.tier__stamp {
  position: relative;
  align-self: flex-start;
  padding: 0.12em 0.45em 0.18em;
  border: 3px solid currentColor;
  border-radius: 12px;
  font-family: var(--f-display);
  font-size: clamp(24px, 2.4vw, 36px);
  line-height: 1.2;
  color: var(--steel);
  rotate: -4deg;
  box-shadow: inset 0 0 0 2px rgba(4, 5, 6, 0.6);
  text-shadow: 0 0 20px rgba(111, 167, 203, 0.35);
}

.tier__items {
  list-style: none;
  padding: 0;
  margin-top: clamp(24px, 3vw, 36px);
  position: relative;
}

.tier__items li {
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  font-weight: 700;
  font-size: clamp(17px, 1.55vw, 22px);
  line-height: 1.5;
}

.tier__img {
  width: 100%;
  max-height: 250px;
  object-fit: contain;
  margin-top: auto;
  padding: 28px 0 32px;
  filter: drop-shadow(0 24px 30px rgba(0, 0, 0, 0.7));
  transition: scale 0.6s var(--ease), rotate 0.6s var(--ease);
}

.tier:hover .tier__img { scale: 1.06; rotate: -2deg; }

.tier__img--panda {
  width: calc(100% + var(--pad));
  max-width: none;
  max-height: 290px;
  margin-right: calc(var(--pad) * -1);
  padding: 20px 0 0;
  object-position: right bottom;
}

/* ---------- closing flyer ---------- */

.closing {
  max-width: 1320px;
  margin: 0 auto;
  padding: clamp(60px, 8vw, 120px) var(--gutter) clamp(48px, 6vw, 80px);
}

.flyer {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  border-radius: 28px;
  background:
    radial-gradient(90% 70% at 100% 0%, rgba(79, 230, 224, 0.09), transparent 60%),
    #07090b;
  box-shadow: 0 0 0 1px var(--line), 0 60px 120px -60px rgba(79, 230, 224, 0.3);
}

.flyer__visual {
  position: relative;
  align-self: stretch;
  min-height: 560px;
  border-radius: 28px 0 0 28px;
  overflow: hidden;
  background: #020303;
}

.flyer__photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  -webkit-mask-image: linear-gradient(180deg, transparent 0%, #000 14%, #000 84%, transparent 100%);
  mask-image: linear-gradient(180deg, transparent 0%, #000 14%, #000 84%, transparent 100%);
}

.flyer__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(2, 3, 3, 0.6) 0%, rgba(2, 3, 3, 0) 30%),
    linear-gradient(0deg, #020303 0%, rgba(2, 3, 3, 0) 22%);
}

.flyer__copy {
  position: absolute;
  z-index: 3;
  top: 6%;
  left: 5%;
  font-family: var(--f-display);
  font-size: clamp(22px, 2.6vw, 38px);
  line-height: 1.1;
  letter-spacing: 0.05em;
  color: #fff;
  text-shadow: 0.07em 0.07em 0 var(--shade);
  white-space: nowrap;
}

.neon--f-mandolin { top: 2%; left: 13%; width: calc(clamp(70px, 8vw, 120px) * 1.249); rotate: 36deg; --flick: 8s; }
.neon--f-mountain { bottom: 3%; left: 4%; width: calc(clamp(110px, 12vw, 190px) * 1.189); --flick: 11s; --float: 10s; }
.neon--f-notes { bottom: 26%; left: 3%; width: calc(clamp(26px, 2.8vw, 42px) * 1.903); --flick: 6s; --float: 7s; }
.neon--f-butterfly { top: 6%; right: 4%; width: calc(clamp(70px, 7vw, 120px) * 1.333); rotate: -8deg; --flick: 9s; }

.flyer__info {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: clamp(18px, 2vw, 26px);
  padding: clamp(28px, 4vw, 56px);
  border-left: 2px dashed rgba(244, 241, 234, 0.18);
}

/* ticket notches */
.flyer__info::before,
.flyer__info::after {
  content: "";
  position: absolute;
  left: -19px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--ink);
  box-shadow: inset 0 0 0 1px var(--line);
}

.flyer__info::before { top: -18px; }
.flyer__info::after { bottom: -18px; }

.flyer__brand {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.arc-mark--sm { width: min(460px, 100%); }

.flyer__logo {
  width: min(400px, 84%);
  margin-top: calc(min(460px, 100%) * -0.05);
}

.flyer__start {
  display: flex;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 12px 18px;
}

.date--lg .date__md b { font-size: clamp(58px, 6.2vw, 100px); }

.start-badge {
  display: inline-block;
  margin-bottom: 0.25em;
  padding: 0.12em 0.85em 0.18em;
  border: 3px solid var(--lime);
  border-radius: 50%;
  font-family: var(--f-display);
  font-size: clamp(22px, 2.3vw, 34px);
  line-height: 1.2;
  color: var(--lime);
  box-shadow: 0 0 24px rgba(226, 240, 192, 0.3), inset 0 0 16px rgba(226, 240, 192, 0.18);
  text-shadow: 0 0 14px rgba(226, 240, 192, 0.5);
}

.flyer__title {
  font-family: var(--f-pop);
  font-size: clamp(26px, 3vw, 44px);
  line-height: 1.25;
  color: #fff;
  text-shadow: 0.05em 0.05em 0 var(--shade);
}

.flyer__copyblock {
  padding: 18px 0;
  word-break: auto-phrase;
  text-wrap: pretty;
  border-top: 2px solid rgba(226, 240, 192, 0.55);
  border-bottom: 2px solid rgba(226, 240, 192, 0.55);
  font-family: var(--f-display);
  line-height: 1.6;
}

.flyer__line1 { font-size: clamp(14px, 1.3vw, 18px); }
.flyer__line2 { margin-top: 6px; font-size: clamp(12px, 0.95vw, 14px); color: rgba(244, 241, 234, 0.82); }

.flyer__foot {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: auto;
}

.sns {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  list-style: none;
  padding: 0;
}

.sns__btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 150px;
  padding: 16px 22px;
  border-radius: 14px;
  font-weight: 700;
  font-size: 16px;
  line-height: 1;
  color: #fff;
  text-decoration: none;
  transition: translate 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.sns__btn svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

.sns__btn svg .fill { fill: currentColor; stroke: none; }

.sns__btn--ig {
  background: linear-gradient(100deg, #7a1fe6 0%, #9b3bff 55%, #d6a6ff 100%);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.25);
}

.sns__btn--yt {
  background: #ff3434;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.2);
}

.sns__btn--ig:hover,
.sns__btn--ig:focus-visible { translate: 0 -3px; box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.4), 0 16px 40px -10px rgba(155, 59, 255, 0.8); }
.sns__btn--yt:hover,
.sns__btn--yt:focus-visible { translate: 0 -3px; box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.4), 0 16px 40px -10px rgba(255, 52, 52, 0.8); }

.flyer__place {
  display: flex;
  flex-direction: column;
  font-style: normal;
  font-family: var(--f-display);
  font-size: clamp(18px, 1.8vw, 26px);
  line-height: 1.3;
  text-align: left;
}

.notes {
  display: flex;
  gap: 10px;
  max-width: 980px;
  margin-top: clamp(40px, 5vw, 64px);
  font-size: clamp(12px, 1.05vw, 14px);
  line-height: 1.9;
  color: var(--mute);
}

.notes ul { list-style: none; padding: 0; }

.site-footer {
  padding: 28px var(--gutter) max(28px, env(safe-area-inset-bottom));
  border-top: 1px solid var(--line);
  text-align: center;
  font-family: var(--f-display);
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--mute);
}

/* ---------- reveal ---------- */

.js [data-reveal] {
  opacity: 0;
  translate: 0 32px;
  transition: opacity 0.9s var(--ease) var(--d, 0s), translate 0.9s var(--ease) var(--d, 0s);
}

.js .scene[data-reveal],
.js .tier[data-reveal] {
  transition-property: opacity, translate, rotate, scale, box-shadow;
  transition-delay: var(--d, 0s), var(--d, 0s), 0s, 0s, 0s;
}

.js [data-reveal].is-in { opacity: 1; translate: 0 0; }

/* ============================================================
   responsive
   ============================================================ */

@media (max-width: 1080px) {
  .tier { min-height: 520px; }
  .flyer { grid-template-columns: 1fr; }
  .flyer__visual { min-height: 0; aspect-ratio: 1; border-radius: 28px 28px 0 0; }
  .flyer__info { border-left: 0; border-top: 2px dashed rgba(244, 241, 234, 0.18); }
  .flyer__info::before,
  .flyer__info::after { top: -19px; bottom: auto; }
  .flyer__info::before { left: -18px; }
  .flyer__info::after { left: auto; right: -18px; }
}

@media (max-width: 900px) {
  .details__grid { grid-template-columns: 1fr; }
  .message__inner { grid-template-columns: 1fr; }
  .tiers { grid-template-columns: 1fr; max-width: 560px; margin: 0 auto; }
  .tier { min-height: 0; }
  .tier__img { max-height: 220px; }
}

@media (max-width: 900px) {
  .hero__photo {
    top: auto;
    bottom: 4svh;
    right: 0;
    width: 100vw;
    translate: 0 0;
  }

  .hero__photo::after {
    background:
      linear-gradient(0deg, var(--ink) 0%, rgba(4, 5, 6, 0) 18%),
      linear-gradient(180deg, var(--ink) 0%, rgba(4, 5, 6, 0) 22%);
  }

  .hero__copy {
    top: max(80px, 10svh);
    left: 18px;
    translate: 0 0;
    font-size: min(5.4svh, 11vw);
  }

  .neon--mandolin {
    top: max(96px, 13svh);
    left: auto;
    right: 18px;
    width: calc(104px * 1.249);
  }

  .hero__scroll { display: none; }
}

@media (max-width: 760px) {

  .neon--mountain { top: 36px; left: 12px; width: calc(140px * 1.189); }
  .neon--notes { top: auto; bottom: 120px; left: 18px; width: calc(34px * 1.903); }
  .neon--butterfly { top: 56px; right: 12px; width: calc(92px * 1.333); }

  .system__row {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }

  .system__side { display: flex; flex-direction: column; align-items: center; }
  .system__hint { justify-content: center; }
  .system__arrow { rotate: 90deg; animation-name: nudgeUp; }

  .scenes {
    grid-template-columns: none;
    grid-auto-flow: column;
    grid-auto-columns: 80%;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-padding-inline: var(--gutter);
    padding-bottom: 28px;
    scrollbar-width: none;
  }

  .scenes::-webkit-scrollbar { display: none; }

  .scene {
    scroll-snap-align: start;
    rotate: 0deg;
    border-radius: 18px;
  }

  .scene:nth-child(2) { margin-top: 0; }

  .flyer__foot { flex-direction: column; align-items: stretch; }
  .sns { display: grid; grid-template-columns: 1fr 1fr; }
  .sns__btn { min-width: 0; justify-content: center; }
  .flyer__place { text-align: left; }
}

@keyframes nudgeUp {
  0%, 100% { translate: 0 0; }
  50% { translate: 0 -6px; }
}

@media (max-width: 560px) {
  .period { flex-direction: column; gap: 6px; }
  .period__arrow { rotate: 90deg; padding-top: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .ch { opacity: 1; animation: none; }
  .js [data-reveal] { opacity: 1; translate: 0 0; }
}

.nowrap { white-space: nowrap; }