/* ===== Tokens ===== */
:root{
  --green:#3aa17e;
  --green-deep:#2c7d62;
  --ink:#2f3a32;
  --ink-soft:#5d6b60;
  --line:#e7e0d2;
  --shadow:0 18px 50px rgba(44,125,98,.22);
  --font-jp:"Zen Maru Gothic",system-ui,sans-serif;
  --font-en:"Poppins",var(--font-jp);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family:var(--font-jp);color:var(--ink);
  overflow:hidden;               /* no page scroll: panels swap instead */
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}

/* ===== Immersive background ===== */
.stage{position:fixed;inset:0;z-index:0;overflow:hidden;background:#f3eede}
/* blurred bleed fills the screen behind the fully-visible image */
.bg-blur{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;
  transform:scale(1.08);filter:blur(34px) brightness(1.04) saturate(1.05);opacity:.85;
}
/* the whole illustration, fully visible (contained) — static to avoid constant repaint */
.bg{
  position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:center;
  opacity:1;
}
.bg-tint{position:absolute;inset:0;background:radial-gradient(125% 95% at 50% 50%, transparent 46%, rgba(243,238,222,.5) 100%)}
@keyframes bgdrift{from{transform:scale(1.14) translate(-1%,-1%)}to{transform:scale(1.2) translate(1%,1%)}}
@keyframes bgfloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}

/* popping mascots */
.mascot-layer{position:absolute;inset:0;pointer-events:none}
.pop{
  position:absolute;will-change:transform,opacity;transform-origin:center bottom;
  animation:pop var(--life,4s) ease-in-out forwards;
}
.pop-img{width:100%;display:block;filter:drop-shadow(0 6px 10px rgba(44,125,98,.22));transform-origin:center bottom}
@keyframes pop{
  0%{opacity:0;transform:scale(.2)}
  14%{opacity:1;transform:scale(1.15)}
  24%{transform:scale(1)}
  82%{opacity:1;transform:scale(1)}
  100%{opacity:0;transform:scale(.35)}
}
/* per-spawn motion while the character is on screen */
.m-bob{animation:m-bob 1s ease-in-out infinite}
.m-wiggle{animation:m-wiggle 1s ease-in-out infinite}
.m-hop{animation:m-hop 1s ease-in-out infinite}
.m-sway{animation:m-sway 1.2s ease-in-out infinite}
.m-spin{animation:m-spin 2.4s linear infinite}
@keyframes m-bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-28%)}}
@keyframes m-wiggle{0%,100%{transform:rotate(-15deg)}50%{transform:rotate(15deg)}}
@keyframes m-hop{0%,100%{transform:translateY(0) scaleY(1)}28%{transform:translateY(-36%) scaleY(1.06)}55%{transform:translateY(0) scaleY(.9)}72%{transform:translateY(-12%) scaleY(1)}}
@keyframes m-sway{0%,100%{transform:translateX(-16%) rotate(-7deg)}50%{transform:translateX(16%) rotate(7deg)}}
@keyframes m-spin{to{transform:rotate(360deg)}}

/* balloons + sparkles (over background, behind panels) */
#fx,#balloons{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.spk{position:absolute;animation:tw 3.2s ease-in-out infinite;filter:drop-shadow(0 0 5px rgba(255,255,255,.9))}
@keyframes tw{0%,100%{opacity:.35;transform:scale(.7) rotate(0)}50%{opacity:1;transform:scale(1.3) rotate(40deg)}}
.bln{position:absolute;bottom:-26vh;animation:blnrise linear infinite;filter:drop-shadow(0 8px 14px rgba(47,58,50,.2))}
@keyframes blnrise{0%{transform:translateY(0) translateX(0)}100%{transform:translateY(-150vh) translateX(var(--sx,16px))}}
.bln svg{animation:sway 5s ease-in-out infinite;transform-origin:center top}
@keyframes sway{0%,100%{transform:rotate(-5deg)}50%{transform:rotate(5deg)}}

/* fireworks (night only) */
#fireworks{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;display:none}

/* sky transition overlay (time-of-day change) */
#skyShift{position:absolute;inset:0;pointer-events:none;opacity:0;z-index:9;
  transition:opacity .9s ease}
#skyShift.sky-sunset{background:
  radial-gradient(120% 80% at 50% 120%, #ffcaa0 0%, #ff8e6b 22%, #c8537e 46%, #6b3a86 70%, #271a4a 100%)}
#skyShift.sky-sunrise{background:
  radial-gradient(120% 90% at 50% -10%, #fff2c4 0%, #ffd27a 22%, #ff9e7a 44%, #b06aa6 68%, #3a3168 100%)}

/* ===== Day / Night ===== */
.daynight-wrap{position:fixed;left:50%;bottom:46px;transform:translateX(-50%);z-index:25;
  display:flex;flex-direction:column-reverse;align-items:center;gap:8px}
.daynight-label{font-size:12.5px;font-weight:700;color:var(--ink);
  background:rgba(255,255,255,.92);padding:4px 14px;border-radius:999px;
  box-shadow:0 4px 12px rgba(47,58,50,.16);white-space:nowrap}
.daynight-label .dn-day{color:#e8920c}
.daynight-label .dn-night{color:#6b73c4}
.night .daynight-label{color:#fff;background:rgba(40,38,70,.74)}
.night .daynight-label .dn-night{color:#aab2ff}
.daynight{
  position:relative;width:88px;height:42px;border-radius:999px;border:2px solid rgba(255,255,255,.85);
  cursor:pointer;padding:0;background:linear-gradient(180deg,#bfe6ff,#8cd0ff);
  box-shadow:0 10px 24px rgba(47,58,50,.26);transition:background .4s;
  animation:dnpulse 2.6s ease-out infinite;
}
.dn-ic{position:absolute;top:50%;transform:translateY(-50%);width:20px;height:20px}
.dn-sun{left:11px;color:#fff;filter:drop-shadow(0 1px 1px rgba(0,0,0,.15))}
.dn-moon{right:11px;color:rgba(255,255,255,.6)}
.dn-knob{position:absolute;top:4px;left:4px;width:30px;height:30px;border-radius:50%;
  background:radial-gradient(circle at 35% 30%,#fff,#ffe7a8);box-shadow:0 2px 8px rgba(0,0,0,.3);
  transition:transform .38s cubic-bezier(.5,1.7,.4,1),background .4s}
.night .daynight{background:linear-gradient(180deg,#2a2c55,#16142f);border-color:rgba(255,255,255,.3)}
.night .dn-sun{color:rgba(255,255,255,.45)}
.night .dn-moon{color:#fff}
.night .dn-knob{transform:translateX(46px);background:radial-gradient(circle at 35% 30%,#fff,#c9cdf2)}
.night .daynight{animation:dnpulseN 2.6s ease-out infinite}
@keyframes dnpulse{0%{box-shadow:0 10px 24px rgba(47,58,50,.26),0 0 0 0 rgba(255,200,60,.55)}70%,100%{box-shadow:0 10px 24px rgba(47,58,50,.26),0 0 0 15px rgba(255,200,60,0)}}
@keyframes dnpulseN{0%{box-shadow:0 10px 24px rgba(0,0,0,.4),0 0 0 0 rgba(150,170,255,.55)}70%,100%{box-shadow:0 10px 24px rgba(0,0,0,.4),0 0 0 15px rgba(150,170,255,0)}}

/* night theme */
.night .stage{background:#16142a}
.night .bg-tint{background:radial-gradient(125% 95% at 50% 50%, transparent 40%, rgba(12,10,32,.6) 100%)}
.night #balloons{display:none}
.night #fireworks{display:block}
.night .spk{filter:drop-shadow(0 0 6px rgba(255,255,255,.95))}

/* ===== Top bar ===== */
.topbar{
  position:fixed;top:0;left:0;right:0;z-index:20;
  display:flex;align-items:center;justify-content:space-between;
  padding:14px clamp(16px,4vw,40px);
}
.logo{display:flex;align-items:center;gap:11px}
.logo-mark{width:42px;height:42px;object-fit:contain;filter:drop-shadow(0 4px 10px rgba(44,125,98,.3));
  transform-origin:center bottom;animation:logobob 3.6s ease-in-out infinite}
.logo-wm{height:34px;width:auto;background:rgba(255,255,255,.86);
  padding:7px 13px;border-radius:999px;box-shadow:0 4px 12px rgba(47,58,50,.1)}
.menu{display:flex;gap:6px;background:rgba(255,255,255,.88);
  padding:6px;border-radius:999px;box-shadow:0 8px 22px rgba(47,58,50,.12)}
.menu-btn{
  border:0;background:transparent;cursor:pointer;font-family:var(--font-jp);font-weight:700;
  font-size:14px;color:var(--ink-soft);padding:8px 16px;border-radius:999px;transition:.2s;
}
.menu-btn:hover{color:var(--green-deep)}
.menu-btn.is-active{background:var(--green);color:#fff;box-shadow:0 6px 14px rgba(58,161,126,.4)}
.menu-toggle{display:none;flex-direction:column;gap:5px;background:rgba(255,255,255,.85);border:0;
  border-radius:12px;padding:12px 11px;cursor:pointer;
  touch-action:manipulation;-webkit-tap-highlight-color:transparent;box-shadow:0 4px 12px rgba(47,58,50,.12)}
.menu,.menu-btn{touch-action:manipulation;-webkit-tap-highlight-color:transparent}
.menu-toggle span{width:22px;height:2.5px;background:var(--ink);border-radius:2px;transition:.3s}

/* ===== Overlay panels ===== */
.overlay{position:fixed;inset:0;z-index:10;display:grid;place-items:center;padding:90px 18px 56px;pointer-events:none}
.panel{display:none;width:100%;max-width:560px;pointer-events:auto;animation:rise .45s cubic-bezier(.2,.8,.2,1)}
.panel.is-active{display:block}
@keyframes rise{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}

/* glass card */
.card,.home-card{
  background:rgba(255,255,255,.93);
  border:1px solid rgba(255,255,255,.8);border-radius:26px;
  box-shadow:var(--shadow);padding:clamp(24px,4vw,40px);
}
/* content panels carry real text — keep them solid enough to read without relying on backdrop-filter */
.card{background:rgba(255,255,255,.96)}
.home-card{text-align:center;max-width:440px;margin-inline:auto;
  background:rgba(255,255,255,.93)}
.card-title{font-size:22px;font-weight:900;text-align:center;margin-bottom:20px;position:relative}
.card-title::after{content:"";display:block;width:38px;height:5px;border-radius:5px;background:var(--green);margin:10px auto 0}
.card--long{max-height:min(72vh, 620px);overflow-y:auto;text-align:left;background:rgba(255,255,255,.96)}

/* legal text (privacy / terms) */
.legal{color:var(--ink-soft);font-size:14px;line-height:1.95}
.legal h3{color:var(--ink);font-size:15px;margin:16px 0 4px}
.legal p{margin:0}

/* home */
.home-mark{width:90px;height:90px;object-fit:contain;margin:0 auto 14px;
  filter:drop-shadow(0 10px 22px rgba(44,125,98,.32));transform-origin:center bottom;
  animation:logobob 2.8s ease-in-out infinite}
@keyframes logobob{
  0%,100%{transform:translateY(0) rotate(0)}
  20%{transform:translateY(-9px) rotate(-5deg)}
  45%{transform:translateY(0) rotate(0)}
  70%{transform:translateY(-9px) rotate(5deg)}
}
.home-title{margin:2px 0 0;line-height:0}
.home-title img{height:auto;width:clamp(200px,62%,280px);margin:0 auto}
.home-tagline{display:flex;flex-direction:column;align-items:center;gap:7px;margin:16px 0 24px}
.t-en{font-family:var(--font-en);font-weight:700;letter-spacing:3px;font-size:clamp(13px,2.4vw,16px);
  color:var(--green-deep);text-transform:uppercase}
.t-jp{font-weight:700;font-size:clamp(19px,3.4vw,24px);color:var(--ink);letter-spacing:1px}
.home-hint{margin-top:22px;font-size:13px;color:var(--ink-soft)}

/* store badges (official) */
.store-badges{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;align-items:center}
.badge{display:inline-flex;transition:transform .15s}
.badge:hover{transform:translateY(-2px)}
.badge img{height:46px;width:auto;display:block}

/* app */
.app-shots{display:flex;gap:14px;justify-content:center}
.app-shots img{width:42%;max-width:175px;border-radius:18px;box-shadow:0 12px 26px rgba(44,125,98,.25)}
.card-lead{text-align:center;color:var(--ink-soft);margin-top:20px;line-height:1.9}

/* how */
.how-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.how-item{flex:1 1 120px;max-width:150px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:4px}
.how-item img{width:84px;height:84px;object-fit:contain}
.how-item b{font-size:17px}
.how-item span{font-size:12.5px;color:var(--ink-soft)}

/* company */
.company{display:flex;flex-direction:column}
.company>div{display:grid;grid-template-columns:88px 1fr;gap:14px;padding:13px 2px;border-bottom:1px solid var(--line)}
.company dt{font-weight:700;color:var(--green-deep)}
.company dd{color:var(--ink-soft)}
.company dd a{color:var(--green-deep);text-decoration:underline}
.addr-office{display:block}
.addr-office + .addr-office{margin-top:5px}
.card-note{margin-top:14px;font-size:12px;color:var(--ink-soft);text-align:center}

/* legal dates */
.legal-meta{font-size:12px;color:var(--ink-soft);margin-top:6px}

/* contact direct email */
.contact-direct{margin-top:16px;text-align:center;font-size:13px;color:var(--ink-soft)}
.contact-direct a{color:var(--green-deep);font-weight:700}

/* MOTTAINAI EVOLUTION panel */
.mottainai{text-align:center}
.mottainai-en{font-family:var(--font-en);font-weight:800;letter-spacing:3px;color:var(--green);
  font-size:clamp(18px,3vw,27px);text-transform:uppercase;margin-bottom:8px}
.mottainai-en::after{content:"";display:block;width:42px;height:5px;border-radius:5px;background:var(--sun);margin:12px auto 0}
.mottainai-lead{font-size:clamp(18px,2.6vw,24px);font-weight:900;line-height:1.6;margin:18px 0 22px}
.mottainai-body{text-align:center;color:var(--ink-soft);line-height:2;display:flex;flex-direction:column;gap:14px;font-size:15px}
.mottainai-slogan{font-weight:700;color:var(--green-deep);font-size:clamp(16px,2.2vw,19px);margin-top:8px}
/* phrase-based wrapping: lines break between clauses, never mid-phrase */
.mottainai-lead .ph,.mottainai-body .ph,.mottainai-slogan .ph{display:inline-block}

/* contact */
.contact-form{display:flex;flex-direction:column;gap:14px}
.contact-form label{display:flex;flex-direction:column;gap:6px;font-weight:700;font-size:13px;color:var(--green-deep)}
.contact-form input,.contact-form select,.contact-form textarea{
  font-family:inherit;font-size:15px;color:var(--ink);font-weight:500;
  border:1.5px solid var(--line);border-radius:12px;padding:11px 14px;background:rgba(255,255,255,.9);
  transition:border-color .2s}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{outline:0;border-color:var(--green)}
.contact-form textarea{resize:vertical}
.submit-btn{margin-top:4px;border:0;cursor:pointer;background:var(--green);color:#fff;font-family:inherit;
  font-weight:700;font-size:16px;padding:14px;border-radius:999px;box-shadow:0 12px 24px rgba(58,161,126,.36);transition:.2s}
.submit-btn:hover{background:var(--green-deep)}
.form-msg{text-align:center;font-size:14px;font-weight:700;min-height:1.2em}
.form-msg.ok{color:var(--green-deep)}
.form-msg.err{color:#d6604d}

/* ===== Footer ===== */
.sitefoot{
  position:fixed;left:0;right:0;bottom:0;z-index:20;
  display:flex;align-items:center;justify-content:center;gap:18px;flex-wrap:wrap;
  padding:10px 18px;font-size:12.5px;color:var(--ink-soft);
  background:rgba(255,255,255,.82);
}
.sitefoot-copy{font-family:var(--font-en);font-weight:700;letter-spacing:.3px}
.sitefoot-link{border:0;background:none;cursor:pointer;font-family:inherit;font-size:12.5px;
  color:var(--ink-soft);font-weight:700;padding:4px 2px;transition:color .2s}
.sitefoot-link:hover{color:var(--green-deep)}

/* ===== Responsive ===== */
@media (max-width:720px){
  .menu{position:fixed;top:64px;right:14px;flex-direction:column;gap:4px;align-items:stretch;
    background:rgba(255,255,255,.98);
    border:1px solid rgba(47,58,50,.1);border-radius:16px;padding:8px;
    box-shadow:0 16px 36px rgba(47,58,50,.24);
    transform:translateY(-8px);opacity:0;visibility:hidden;
    transition:opacity .14s ease,transform .14s ease,visibility .14s}
  .menu.open{transform:none;opacity:1;visibility:visible}
  .menu-btn{text-align:left;padding:12px 20px;border-radius:11px}
  .menu-toggle{display:flex}
  .menu-toggle.open span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
  .menu-toggle.open span:nth-child(2){opacity:0}
  .menu-toggle.open span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}
  .logo-wm{display:none}
  /* narrow screens: fill with the sharp illustration (cropped) instead of a thin contained strip */
  .bg{object-fit:cover;animation:none}
  .bg-blur{display:none}
}

/* pause all CSS motion when the tab/page is not visible — big CPU/GPU saving */
.anim-paused .spk,.anim-paused .bln,.anim-paused .bln svg,
.anim-paused .pop,.anim-paused .pop-img,
.anim-paused .home-mark,.anim-paused .logo-mark,.anim-paused .daynight{animation-play-state:paused}

@media (prefers-reduced-motion: reduce){
  .bg,.bg-blur,.home-mark,.logo-mark{animation:none}
  .pop,.pop-img,.daynight,.night .daynight{animation:none}
}