/* =========================================================================
   Adventure in Akihabara with Anime  —  Anime Sensei
   Design system v2 "Grown-up"  — editorial serif + immersive photography
   Benchmarked to japanlocalexperience.com's maturity:
     · full-bleed dark hero, text over image
     · Fraunces serif display
     · warm cream (never pure white) + one restrained accent
     · generous whitespace, letter-spaced small-caps eyebrows
   ========================================================================= */

:root{
  /* --- warm, editorial palette (no pure white) --- */
  --ink:        #221c17;   /* warm near-black — body text */
  --ink-soft:   #6a6054;
  --paper:      #f5efe6;   /* warm cream base */
  --paper-2:    #ece2d3;   /* deeper cream panel */
  --line:       #e2d9c8;
  --card:       #fbf8f2;   /* card surface, a touch lighter than paper */

  /* one confident accent (Akihabara raspberry) + a quiet second for wayfinding */
  --explore:    #c9385e;   --explore-ink:#9c2445;
  --learn:      #1d6f86;   --learn-ink:  #14515f;
  --gold:       #be9a4e;   /* refined gold for stars & fine accents */

  --night:      #17131c;   /* deep ink-plum night */
  --night-2:    #241d2b;

  /* --- type --- */
  --f-display: "Fraunces", "Times New Roman", Georgia, serif;
  --f-body:    "Instrument Sans", "Noto Sans JP", system-ui, -apple-system, sans-serif;
  --f-mono:    ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  /* --- rhythm --- */
  --wrap: 1180px;
  --gap: clamp(1rem, 3vw, 2.2rem);
  --sec-y: clamp(4rem, 9vw, 7.5rem);
  --radius: 14px;
  --shadow: 0 16px 34px -18px rgba(34,28,23,.4);
  --shadow-soft: 0 8px 20px -12px rgba(34,28,23,.3);
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body{
  margin:0;
  font-family:var(--f-body);
  color:var(--ink);
  background:var(--paper);
  line-height:1.72;
  font-weight:400;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
/* paper grain — the tactile layer over everything */
body::after{ content:""; position:fixed; inset:0; z-index:999; pointer-events:none; opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E"); }

/* ---------- layout helpers ---------- */
.wrap{ width:min(100% - 2.6rem, var(--wrap)); margin-inline:auto; }
.sec{ padding-block:var(--sec-y); }
.center{ text-align:center; }
.stack> * + *{ margin-top:1rem; }

/* ---------- type scale ---------- */
h1,h2,h3{ font-family:var(--f-display); font-weight:400; line-height:1.06;
  letter-spacing:-.01em; margin:0; font-optical-sizing:auto; }
.display{ font-family:var(--f-body); font-size:clamp(2.7rem, 6vw, 5.2rem); font-weight:700;
  line-height:1.05; letter-spacing:-.035em; }
.display .acc{ font-family:var(--f-display); font-style:italic; font-weight:500;
  color:var(--explore); letter-spacing:0; }
h2{ font-size:clamp(2rem, 4.2vw, 3.1rem); font-weight:450; }
h3{ font-size:clamp(1.25rem, 2.2vw, 1.6rem); font-weight:500; }
.lede{ font-size:clamp(1.05rem, 1.5vw, 1.22rem); color:var(--ink-soft); line-height:1.7;
  font-family:var(--f-body); }
.eyebrow{ font-family:var(--f-body); font-weight:600; letter-spacing:.24em;
  text-transform:uppercase; font-size:.74rem; color:var(--explore-ink);
  display:inline-flex; align-items:center; gap:.6em; flex-wrap:wrap; row-gap:.25em; }
.eyebrow::before{ content:""; width:22px; height:1px; background:currentColor; opacity:.6; }
.eyebrow.learn{ color:var(--learn-ink); }
.eyebrow.center-eb{ justify-content:center; }
/* bilingual eyebrow — the kanji is part of the lesson (hover shows the reading) */
.eyebrow .jp{ font-family:"Noto Sans JP",sans-serif; font-weight:700; letter-spacing:.28em;
  cursor:help; }
/* brand lockup suffix — "by Anime Sensei" sits quieter than the tour name */
.eyebrow__by{ font-weight:400; opacity:.65; text-transform:none; letter-spacing:.12em; }
em{ font-style:italic; }

/* ---------- fine details ---------- */
::selection{ background:var(--explore); color:#fff; }
a:focus-visible, button:focus-visible, summary:focus-visible{
  outline:2px solid var(--explore); outline-offset:3px; border-radius:6px; }

/* ---------- buttons (flat, editorial — no toy 3D) ---------- */
.btn{ display:inline-flex; align-items:center; gap:.55em; font-family:var(--f-body);
  font-weight:600; font-size:.96rem; letter-spacing:.01em; padding:.85em 1.6em;
  border-radius:999px; border:1px solid transparent; background:var(--ink); color:var(--paper);
  cursor:pointer; transition:transform .2s ease, background .2s ease, color .2s ease, border-color .2s ease; }
.btn:hover{ transform:translateY(-2px); background:#000; }
/* restraint: all primary actions are black pills; colour lives in accents only */
.btn--explore{ background:var(--ink); color:#fff; }
.btn--explore:hover{ background:#000; }
.btn--learn{ background:var(--ink); color:#fff; }
.btn--learn:hover{ background:#000; }
.btn--ghost{ background:transparent; color:currentColor; border-color:currentColor; }
.btn--ghost:hover{ background:rgba(255,255,255,.08); }
.btn--light{ background:var(--paper); color:var(--ink); }
.btn--light:hover{ background:#fff; }
.btn--sm{ font-size:.86rem; padding:.6em 1.15em; }

/* ---------- tags / chips ---------- */
.chip{ display:inline-flex; align-items:center; gap:.4em; font-family:var(--f-mono);
  font-weight:500; font-size:.68rem; letter-spacing:.1em; text-transform:uppercase;
  padding:.45em .85em; border-radius:6px; background:rgba(34,28,23,.06); color:var(--ink);
  border:1px solid var(--line); }
.chip--explore{ background:var(--explore); color:#fff; border-color:transparent; }
.chip--learn{ background:var(--learn); color:#fff; border-color:transparent; }

/* ---------- header ---------- */
.nav{ position:sticky; top:.75rem; z-index:50; background:transparent; }
.nav__in{ position:relative; display:flex; align-items:center; gap:1rem; height:60px;
  background:rgba(255,255,255,.88); backdrop-filter:blur(14px);
  border:1px solid var(--line); border-radius:999px; padding-inline:1.5rem;
  box-shadow:0 12px 32px -20px rgba(34,28,23,.45); }
.brand{ font-family:var(--f-display); font-size:1.4rem; font-weight:500; letter-spacing:-.01em;
  display:flex; align-items:center; gap:.55rem; white-space:nowrap; }
.brand .dot{ width:9px; height:9px; border-radius:50%; background:var(--explore); }
.nav__links{ margin-left:auto; display:flex; align-items:center; gap:1.6rem; }
.nav__links a{ font-weight:500; font-size:.94rem; color:var(--ink-soft); }
.nav__links a:hover{ color:var(--ink); }
.nav__links a.btn{ color:var(--paper); }
.nav__toggle{ display:none; margin-left:auto; background:none; border:0; cursor:pointer;
  font-size:1.4rem; color:var(--ink); }
@media (max-width:900px){
  .nav__links{ display:none; }
  .nav__links.open{ display:flex; position:absolute; top:calc(100% + .6rem); left:0; right:0;
    flex-direction:column; align-items:stretch; gap:0; background:var(--card);
    border:1px solid var(--line); border-radius:22px; padding:.6rem 1.3rem 1.3rem;
    box-shadow:0 24px 50px -24px rgba(34,28,23,.5); }
  .nav__links.open a{ padding:.8rem 0; border-bottom:1px solid var(--line); font-size:1rem; }
  .nav__links.open a.btn{ margin-top:.8rem; justify-content:center; border-bottom:0; }
  .nav__toggle{ display:block; }
}

/* ---------- hero (tactile editorial — big type on warm texture, floating prints) ---------- */
.hero{ position:relative; overflow:hidden;
  padding-block:clamp(3.5rem,7vw,6rem) clamp(3rem,6vw,5rem);
  background:
    radial-gradient(55% 60% at 12% 8%, #efe4d2 0%, transparent 60%),
    radial-gradient(45% 55% at 88% 14%, #eaddcc 0%, transparent 55%),
    radial-gradient(70% 60% at 75% 100%, #f3e8d9 0%, transparent 60%),
    var(--paper); }
.hero__grid{ display:grid; grid-template-columns:1.15fr .85fr; gap:clamp(2rem,5vw,4.5rem);
  align-items:center; position:relative; z-index:1; }
.hero__grid > *{ min-width:0; }
.hero__copy{ max-width:640px; }
.hero h1{ margin:1rem 0 0; color:var(--ink); }
.hero__lede{ font-size:clamp(1.05rem,1.5vw,1.25rem); color:var(--ink-soft); max-width:44ch;
  margin-top:1.4rem; line-height:1.7; }
.hero__jpline{ margin:1rem 0 0; font-family:"Noto Sans JP",sans-serif; font-size:.9rem;
  letter-spacing:.12em; color:var(--ink-soft); opacity:.85; }
.hero__paths{ display:flex; flex-wrap:wrap; gap:.9rem; margin-top:2rem; }
.hero__proof{ display:flex; align-items:center; gap:.7rem; margin-top:1.8rem; font-size:.88rem;
  color:var(--ink-soft); flex-wrap:wrap; }
.hero__proof .star{ color:var(--gold); letter-spacing:2px; }
.hero__proof b{ color:var(--ink); font-weight:600; }
/* vertical Japanese caption */
.hero__jp{ position:absolute; top:50%; right:clamp(.9rem,2vw,1.8rem); transform:translateY(-50%);
  writing-mode:vertical-rl; z-index:1; font-family:"Noto Sans JP",sans-serif; font-weight:500;
  font-size:.8rem; letter-spacing:.5em; color:rgba(34,28,23,.32); pointer-events:none; }
@media (max-width:1180px){ .hero__jp{ display:none; } }
/* inline image pill inside the headline — the "Escape the generic" trick */
.hpill{ display:inline-block; vertical-align:-.04em; height:.66em; aspect-ratio:2.4/1;
  border-radius:999px; overflow:hidden; margin:0 .05em;
  box-shadow:inset 0 0 0 1px rgba(34,28,23,.12); }
.hpill img{ width:100%; height:100%; object-fit:cover; display:block; }
/* floating prints (polaroids) */
.hero__stack{ position:relative; min-height:560px; }
.polaroid{ position:absolute; margin:0; background:#fff; padding:12px 12px 46px;
  border-radius:14px; border:1px solid rgba(34,28,23,.06);
  box-shadow:0 34px 60px -34px rgba(34,28,23,.5), 0 2px 8px rgba(34,28,23,.08); }
.polaroid img, .polaroid video{ display:block; width:100%; height:auto; aspect-ratio:4/5;
  object-fit:cover; border-radius:8px; background:#111; }
.polaroid figcaption{ position:absolute; left:16px; bottom:14px; font-family:var(--f-mono);
  font-size:.66rem; letter-spacing:.05em; color:var(--ink-soft); }
.polaroid--video{ right:0; top:2%; width:min(60%,300px); rotate:2.5deg; z-index:2; }
.polaroid--photo{ left:2%; bottom:0; width:min(56%,280px); rotate:-4deg; z-index:1; }
.polaroid .rec{ position:absolute; top:22px; left:22px; z-index:2; display:inline-flex;
  align-items:center; gap:.5em; font-family:var(--f-mono); font-size:.6rem; letter-spacing:.16em;
  color:#fff; background:rgba(15,11,18,.6); padding:.45em .75em; border-radius:6px; }
.polaroid .rec .dot{ width:7px; height:7px; border-radius:50%; background:#ff3b30;
  animation:recblink 1.6s ease-in-out infinite; }
@keyframes recblink{ 0%,100%{ opacity:1; } 50%{ opacity:.35; } }
@media (max-width:860px){
  .hero__grid{ grid-template-columns:1fr; }
  .hero__stack{ min-height:480px; margin-top:1.5rem; }
  .polaroid--video{ right:2%; width:min(58%,270px); }
  .polaroid--photo{ left:2%; width:min(54%,250px); }
}

/* ---------- proof strip ---------- */
.proof{ background:var(--night); color:#efe7db; border-bottom:1px solid rgba(255,255,255,.06); }
.proof__in{ display:flex; flex-wrap:wrap; justify-content:center; gap:clamp(1.2rem,5vw,4rem);
  padding-block:1.7rem; text-align:center; }
.proof__item{ display:flex; flex-direction:column; line-height:1.25; }
.proof__num{ font-family:var(--f-display); font-weight:450; font-size:1.7rem; color:#fdf9f3; }
.proof__lab{ font-family:var(--f-mono); font-size:.68rem; letter-spacing:.14em;
  text-transform:uppercase; color:rgba(239,231,219,.6); margin-top:.15rem; }

/* ---------- section heading block ---------- */
.head{ max-width:640px; }
.head.center{ margin-inline:auto; }

/* ---------- two paths ---------- */
.paths{ display:grid; grid-template-columns:1fr 1fr; gap:var(--gap); }
@media (max-width:820px){ .paths{ grid-template-columns:1fr; } }
.path{ position:relative; border-radius:var(--radius); overflow:hidden; background:var(--card);
  border:1px solid var(--line); box-shadow:var(--shadow-soft); display:flex;
  flex-direction:column; transition:transform .25s ease, box-shadow .25s ease, rotate .25s ease; }
/* collage tilt — like prints laid on a desk */
.paths .path:first-child{ rotate:-.5deg; }
.paths .path:last-child{ rotate:.6deg; }
.path:hover{ transform:translateY(-4px); box-shadow:var(--shadow); rotate:0deg; }
/* giant watermark kanji — 探 (explore) / 学 (learn) */
.path::after{ content:attr(data-kanji); position:absolute; right:-.06em; bottom:-.22em;
  font-family:"Noto Sans JP",sans-serif; font-weight:900; font-size:8.5rem; line-height:1;
  color:var(--ink); opacity:.05; pointer-events:none; z-index:1; }
/* neon hairline on hover */
.path::before{ content:""; position:absolute; top:0; left:0; right:0; height:3px; z-index:2;
  background:linear-gradient(90deg, var(--explore), transparent 70%); opacity:0;
  transition:opacity .25s ease; }
.path--learn::before{ background:linear-gradient(90deg, var(--learn), transparent 70%); }
.path:hover::before{ opacity:1; }
.path__figure{ position:relative; aspect-ratio:16/11; overflow:hidden; }
.path__figure img{ width:100%; height:100%; object-fit:cover; transition:transform .5s ease; }
.path:hover .path__figure img{ transform:scale(1.04); }
.path__figure .chip{ position:absolute; top:1rem; left:1rem; }
.path__body{ padding:1.7rem 1.8rem 2rem; display:flex; flex-direction:column; flex:1; gap:.55rem; }
.path__body h3{ font-size:1.5rem; }
.path .btn{ margin-top:1rem; align-self:flex-start; }

/* ---------- feature rows ---------- */
.feature{ display:grid; grid-template-columns:1fr 1fr; gap:clamp(1.8rem,5vw,4.5rem);
  align-items:center; }
.feature.rev .feature__media{ order:2; }
.feature__media{ position:relative; }
.feature__media img{ border-radius:var(--radius); box-shadow:var(--shadow);
  aspect-ratio:5/4; object-fit:cover; width:100%; }
/* mono film caption — hand-placed annotation on real photos */
.figcap{ position:absolute; left:12px; bottom:12px; font-family:var(--f-mono);
  font-size:.66rem; letter-spacing:.08em; color:#efe7db;
  background:rgba(23,19,28,.82); padding:.5em .85em; border-radius:6px; }
@media (max-width:820px){
  .feature{ grid-template-columns:1fr; }
  .feature.rev .feature__media{ order:0; }
}
.video-embed{ position:relative; width:100%; aspect-ratio:16/9; border-radius:var(--radius);
  overflow:hidden; box-shadow:var(--shadow); background:#000; }
.video-embed iframe{ position:absolute; inset:0; width:100%; height:100%; border:0; }
.ticks{ list-style:none; padding:0; margin:1.1rem 0 0; display:grid; gap:.75rem; }
.ticks li{ display:flex; gap:.75rem; align-items:flex-start; color:var(--ink-soft); }
.ticks li::before{ content:""; width:7px; height:7px; margin-top:.6rem; flex:0 0 auto;
  border-radius:50%; background:var(--explore); }
.ticks.learn li::before{ background:var(--learn); }

/* ---------- info cards ---------- */
.grid3{ display:grid; grid-template-columns:repeat(3,1fr); gap:var(--gap); }
.grid4{ display:grid; grid-template-columns:repeat(4,1fr); gap:var(--gap); }
@media (max-width:820px){ .grid3,.grid4{ grid-template-columns:1fr 1fr; } }
@media (max-width:520px){ .grid3,.grid4{ grid-template-columns:1fr; } }
.card{ background:var(--card); border:1px solid var(--line); border-radius:var(--radius);
  padding:1.6rem; box-shadow:var(--shadow-soft); }
.card .ic{ font-size:1.5rem; }
/* kanji stamp — replaces emoji icons (絵文字はAI臭) */
.kchip{ width:46px; height:46px; display:grid; place-items:center; border-radius:12px;
  background:var(--card); border:1px solid var(--line); color:var(--ink);
  font-family:"Noto Sans JP",sans-serif; font-weight:700; font-size:1.3rem; line-height:1; }
.card h3{ font-size:1.2rem; margin:.7rem 0 .35rem; }
.card p{ color:var(--ink-soft); font-size:.96rem; margin:0; }

/* ---------- timeline ---------- */
.flow{ display:grid; gap:0; margin-top:1.8rem; }
.flow__row{ display:grid; grid-template-columns:110px 18px 1fr; gap:1.2rem; }
.flow__time{ font-family:var(--f-display); font-style:italic; color:var(--explore-ink);
  font-size:1.1rem; text-align:right; padding-top:.05rem; }
.flow__dot{ position:relative; width:18px; }
.flow__dot::before{ content:""; position:absolute; left:50%; top:8px; width:11px; height:11px;
  border-radius:50%; background:var(--explore); transform:translateX(-50%); z-index:1;
  box-shadow:0 0 0 4px rgba(201,56,94,.15); }
.flow__row:not(:last-child) .flow__dot::after{ content:""; position:absolute; left:50%;
  top:8px; bottom:-1.4rem; width:2px; background:var(--line); transform:translateX(-50%); }
.flow__body{ padding-bottom:1.7rem; }
.flow__body h3{ font-size:1.2rem; }
.flow__body p{ color:var(--ink-soft); margin:.2rem 0 0; }
@media (max-width:560px){
  .flow__row{ grid-template-columns:1fr; }
  .flow__time{ text-align:left; min-width:0; }
  .flow__dot{ display:none; }
}

/* ---------- reviews ---------- */
.reviews{ background:var(--paper-2); }
.rev-grid{ columns:3 300px; column-gap:var(--gap); margin-top:2rem; }
.review{ break-inside:avoid; background:var(--card); border:1px solid var(--line);
  border-radius:var(--radius); padding:1.5rem 1.6rem; margin-bottom:var(--gap);
  box-shadow:var(--shadow-soft); }
.review__stars{ color:var(--gold); letter-spacing:2px; font-size:.9rem; }
.review__q{ margin:.6rem 0 1rem; font-size:1.06rem; font-family:var(--f-display);
  font-weight:400; line-height:1.5; color:var(--ink); }
.review__by{ display:flex; align-items:center; gap:.6rem; font-size:.85rem; color:var(--ink-soft); }
.review__by .src{ margin-left:auto; font-family:var(--f-mono); font-size:.64rem;
  letter-spacing:.08em; text-transform:uppercase; padding:.3em .7em; border-radius:6px;
  background:var(--paper-2); color:var(--ink-soft); border:1px solid var(--line); }

/* ---------- instagram ---------- */
.instagram{ background:var(--paper-2); }
.ig-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:var(--gap); }
@media (max-width:820px){ .ig-grid{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:520px){ .ig-grid{ grid-template-columns:1fr; } }
.ig-embed{ background:#fff; border:1px solid var(--line); border-radius:var(--radius);
  overflow:hidden; box-shadow:var(--shadow-soft); }
.ig-embed iframe{ width:100%; height:560px; border:0; display:block; }
.ig-grid--empty{ display:block; text-align:center; }
.ig-cta{ display:inline-block; font-family:var(--f-display); font-size:1.2rem; color:var(--explore-ink);
  padding:2.5rem 1rem; border:1px dashed var(--line); border-radius:var(--radius); width:100%; }
.ig-cta:hover{ background:#fff; }

/* ---------- sensei (dark) ---------- */
.sensei{ background:var(--night); color:#efe7db; }
.sensei .feature__media img{ box-shadow:0 34px 70px -34px rgba(0,0,0,.85); }
.sensei h2,.sensei h3{ color:#fdf9f3; }
.sensei .lede{ color:rgba(239,231,219,.82); }
.sensei .eyebrow{ color:var(--gold); }
.sensei .eyebrow::before{ background:var(--gold); }
.sensei .mini{ display:flex; gap:2.2rem; flex-wrap:wrap; margin-top:1.6rem; }
.sensei .mini b{ font-family:var(--f-display); font-weight:450; font-size:1.9rem; color:#fdf9f3;
  display:block; line-height:1; }
.sensei .mini span{ font-size:.76rem; letter-spacing:.1em; text-transform:uppercase;
  color:rgba(239,231,219,.6); }

/* ---------- FAQ ---------- */
.faq{ max-width:840px; margin-inline:auto; margin-top:2rem; }
.faq details{ border-bottom:1px solid var(--line); padding:.4rem 0; }
.faq summary{ cursor:pointer; font-family:var(--f-display); font-weight:500; font-size:1.2rem;
  padding:1rem 0; list-style:none; display:flex; align-items:center; gap:.9rem; color:var(--ink); }
.faq summary::-webkit-details-marker{ display:none; }
.faq summary::before{ content:"+"; color:var(--explore); font-size:1.4rem; font-family:var(--f-body);
  width:1rem; text-align:center; }
.faq details[open] summary::before{ content:"–"; }
.faq details p{ margin:0 0 1.1rem; color:var(--ink-soft); padding-left:1.9rem; max-width:64ch; }

/* ---------- final CTA ---------- */
.finale{ position:relative; color:#fdf9f3; text-align:center; overflow:hidden; }
.finale__bg{ position:absolute; inset:0; z-index:0; }
.finale__bg img{ width:100%; height:100%; object-fit:cover; }
.finale__bg::after{ content:""; position:absolute; inset:0;
  background:linear-gradient(rgba(15,11,18,.82), rgba(15,11,18,.9)); }
.finale .wrap{ position:relative; z-index:1; }
.finale h2{ color:#fdf9f3; }
.finale .lede{ color:rgba(253,249,243,.85); }
.finale__btns{ display:flex; gap:1rem; justify-content:center; flex-wrap:wrap; margin-top:2rem; }

/* ---------- footer ---------- */
.foot{ background:var(--night); color:rgba(239,231,219,.66); font-size:.92rem; }
.foot__in{ display:grid; grid-template-columns:1.5fr 1fr 1fr; gap:2.4rem; padding-block:3rem; }
.foot h4{ font-family:var(--f-display); font-weight:450; color:#fdf9f3; margin:0 0 .9rem;
  font-size:1.15rem; }
.foot p{ margin:.3rem 0; }
.foot a{ display:block; padding:.22rem 0; color:rgba(239,231,219,.66); }
.foot a:hover{ color:#fff; }
.foot__legal{ border-top:1px solid rgba(255,255,255,.1); padding-block:1.3rem;
  font-size:.8rem; color:rgba(239,231,219,.45); }
@media (max-width:720px){ .foot__in{ grid-template-columns:1fr; gap:1.6rem; } }

/* ---------- entrance animation (transform-only; never hides content) ---------- */
@media (prefers-reduced-motion:no-preference){
  html.js .reveal.in{ animation:revealUp .6s cubic-bezier(.2,.7,.2,1) both; }
}
@keyframes revealUp{ from{ transform:translateY(18px); } to{ transform:none; } }

/* =========================================================================
   v3 additions — A: live JST clock · B: monumental hero type ·
   E: day/night mode · H: quest loading screen
   ========================================================================= */

.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; }

/* ---------- A. live Akihabara clock (header) ---------- */
.nav__clock{ margin-left:.4rem; text-align:right; line-height:1.25; white-space:nowrap;
  font-variant-numeric:tabular-nums; }
.nav__clock-place{ display:block; font-family:var(--f-mono); font-size:.54rem;
  letter-spacing:.2em; color:var(--ink-soft); }
.nav__clock-time{ font-weight:600; font-size:.84rem; color:var(--ink); }
.nav__clock-time i{ font-style:normal; font-size:.7em; letter-spacing:.06em; color:var(--explore); }

/* ---------- E. day/night toggle button ---------- */
.nav__dn{ flex:0 0 auto; width:34px; height:34px; border-radius:50%; border:1px solid var(--line);
  background:transparent; color:var(--ink); cursor:pointer; font-size:.95rem; line-height:1;
  display:grid; place-items:center; transition:border-color .2s ease, transform .2s ease; }
.nav__dn:hover{ border-color:var(--ink); transform:rotate(-14deg); }
@media (max-width:900px){
  .nav__in{ gap:.7rem; padding-inline:1.1rem; }
  .brand{ font-size:1.12rem; }
  .nav__clock{ margin-left:auto; line-height:1; }
  .nav__clock-place{ display:none; }
  .nav__clock-time{ font-size:.8rem; }
  .nav__toggle{ margin-left:0; }
}
@media (max-width:360px){ .nav__clock{ display:none; } }

/* ---------- B. monumental hero type ---------- */
.hero .eyebrow{ margin-top:.5rem; }
.hero__giant{ margin:.9rem 0 0; text-transform:uppercase; line-height:.92;
  letter-spacing:-.015em; font-weight:600; font-size:clamp(3.4rem, 13vw, 12.5rem); }
.hero__l1, .hero__l2{ display:block; }
.hero__l1 .hpill{ vertical-align:-.02em; margin-left:.08em; }
.hero__l2{ margin-left:.52em; color:transparent; -webkit-text-stroke:.021em var(--explore); }
@supports not (-webkit-text-stroke:1px red){ .hero__l2{ color:var(--explore); } }
.hero .hero__grid{ margin-top:clamp(1.8rem, 4vw, 3rem); }
.hero__stack{ min-height:500px; }
.hero__lede .acc{ font-family:var(--f-display); font-style:italic; font-weight:500;
  color:var(--explore); }
@media (max-width:860px){ .hero__stack{ min-height:480px; } }

/* ---------- E. night mode — "the town switches on" ---------- */
html.night{
  --ink:        #efe8dc;
  --ink-soft:   #a79db4;
  --paper:      #17131c;
  --paper-2:    #1f1927;
  --line:       #362e46;
  --card:       #221b2c;
  --explore:    #e0517a;  --explore-ink:#ff85a6;
  --learn:      #2f93ad;  --learn-ink:  #82c8da;
  --gold:       #d8b46a;
  --night:      #0f0c15;
  --night-2:    #1a1523;
  --shadow: 0 16px 34px -18px rgba(0,0,0,.75);
  --shadow-soft: 0 8px 20px -12px rgba(0,0,0,.6);
}
html.night body{ background:var(--paper); color:var(--ink); }
html.night .nav__in{ background:rgba(26,20,34,.86); box-shadow:0 12px 32px -20px rgba(0,0,0,.8); }
html.night .hero{ background:
    radial-gradient(55% 60% at 12% 8%, #241b33 0%, transparent 60%),
    radial-gradient(45% 55% at 88% 14%, rgba(224,81,122,.16) 0%, transparent 55%),
    radial-gradient(70% 60% at 75% 100%, rgba(47,147,173,.13) 0%, transparent 60%),
    var(--paper); }
html.night .hero__l2{ text-shadow:0 0 34px rgba(224,81,122,.4); }
html.night .hero__jp{ color:rgba(239,232,220,.3); }
html.night .btn:hover{ background:#fffdf8; }
html.night .path::after{ color:#fff; }
html.night .ig-cta:hover{ background:var(--card); }
html.night .figcap{ background:rgba(10,7,14,.85); }

/* ---------- H. quest loading screen ---------- */
.loader{ position:fixed; inset:0; z-index:1200; background:#17131c; display:none;
  flex-direction:column; align-items:center; justify-content:center; gap:1.6rem;
  transition:opacity .45s ease; }
.loader.show{ display:flex; }
.loader.hide{ opacity:0; pointer-events:none; }
.loader__t{ font-family:var(--f-display); font-weight:500; text-transform:uppercase;
  letter-spacing:.32em; font-size:clamp(.9rem, 2.5vw, 1.15rem); color:#f1eaff; }
.loader__t i{ font-style:normal; color:#ff6d9c; text-shadow:0 0 16px rgba(255,60,130,.8); }
.loader__bar{ width:min(300px, 64vw); height:14px; border:2px solid #be9a4e; padding:2px; }
.loader__bar b{ display:block; height:100%; width:0; background:#c9385e; }
.loader.show .loader__bar b{ animation:loadfill 1.05s steps(9) forwards; }
@keyframes loadfill{ to{ width:100%; } }
.loader__hint{ font-family:"Noto Sans JP",sans-serif; font-size:.7rem; letter-spacing:.4em;
  color:#9a90ad; }