/* =====================================================
   INREVO風 ローディング & ヒーロー デモ
   ===================================================== */

:root{
  --navy-deep:#05070f;
  --navy:#0a0e1c;
  --navy-mid:#131a2e;
  --orange:#e07a3c;
  --orange-soft:#f2a15f;
  --cream:#f4ede2;
  --white:#ffffff;
  --gold:#c9a15a;
}

*{ box-sizing:border-box; }

body{
  margin:0;
  background:var(--navy-deep);
  color:var(--cream);
  font-family:"Noto Sans JP","Hiragino Kaku Gothic ProN",sans-serif;
}

a{ color:inherit; text-decoration:none; }

.eng{ font-family:"Jost","Noto Sans JP",sans-serif; }

/* ===================================================
   Loading Screen
   =================================================== */
.loader{
  position:fixed;
  inset:0;
  z-index:1000;
  display:flex;
  align-items:center;
  justify-content:center;
  background:radial-gradient(120% 120% at 50% 30%, #0d1326 0%, var(--navy-deep) 60%, #000 100%);
  transition:opacity 0.9s ease, visibility 0.9s ease;
}
.loader.is-hidden{
  opacity:0;
  visibility:hidden;
  pointer-events:none;
}

.loader-stars{
  position:absolute;
  inset:0;
  background-image:
    radial-gradient(1.5px 1.5px at 20% 30%, rgba(255,255,255,.5) 50%, transparent 100%),
    radial-gradient(1.5px 1.5px at 70% 60%, rgba(255,255,255,.4) 50%, transparent 100%),
    radial-gradient(1px 1px at 40% 80%, rgba(255,255,255,.35) 50%, transparent 100%),
    radial-gradient(1px 1px at 85% 20%, rgba(255,255,255,.4) 50%, transparent 100%),
    radial-gradient(1.5px 1.5px at 55% 15%, rgba(255,255,255,.3) 50%, transparent 100%),
    radial-gradient(1px 1px at 10% 65%, rgba(255,255,255,.3) 50%, transparent 100%);
  background-repeat:repeat;
  background-size:340px 340px;
  opacity:.7;
}

.loader-inner{
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:clamp(14px,2.4vw,22px);
}

.loader-mark{
  color:var(--gold);
  animation:loaderSpin 2.6s ease-in-out infinite;
}
@keyframes loaderSpin{
  0%,100%{ transform:scaleY(1); opacity:.85; }
  50%{ transform:scaleY(0.55); opacity:1; }
}

.loader-word{
  font-family:"Jost",sans-serif;
  font-weight:400;
  letter-spacing:0.42em;
  font-size:clamp(14px,2vw,18px);
  color:var(--cream);
  padding-left:0.42em; /* optical align for letter-spacing */
}

.loader-bar{
  width:clamp(160px,22vw,240px);
  height:1px;
  background:rgba(244,237,226,0.18);
  position:relative;
  overflow:hidden;
}
.loader-bar span{
  position:absolute;
  inset:0 auto 0 0;
  width:0%;
  background:linear-gradient(90deg, var(--gold), var(--orange-soft));
  transition:width .2s linear;
}

.loader-count{
  font-family:"Jost",sans-serif;
  font-weight:300;
  font-size:clamp(11px,1.4vw,13px);
  letter-spacing:0.15em;
  color:rgba(244,237,226,0.55);
}
.loader-percent-sign{ margin-left:2px; }

/* ===================================================
   Header
   =================================================== */
.site-header{
  position:fixed;
  top:0; left:0; right:0;
  z-index:200;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:clamp(12px,3vw,32px);
  padding:clamp(16px,2.6vw,28px) clamp(20px,4vw,56px);
  opacity:0;
  transform:translateY(-14px);
  transition:opacity .8s ease, transform .8s ease;
}
.site-header.is-visible{
  opacity:1;
  transform:translateY(0);
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--white);
  flex-shrink:0;
}
.brand-word{
  font-family:"Jost",sans-serif;
  font-weight:500;
  letter-spacing:0.28em;
  font-size:clamp(13px,1.6vw,15px);
  padding-left:0.28em;
}

.site-nav{
  display:flex;
  align-items:center;
  gap:clamp(18px,2.6vw,36px);
  font-size:clamp(12px,1.3vw,14px);
  color:rgba(244,237,226,0.85);
  margin-left:auto;
  margin-right:clamp(16px,2.6vw,32px);
}
.site-nav a{ white-space:nowrap; position:relative; }
.site-nav a::after{
  content:"";
  position:absolute;
  left:0; right:0; bottom:-6px;
  height:1px;
  background:var(--gold);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .3s ease;
}
.site-nav a:hover::after{ transform:scaleX(1); }

.cta-btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:12px 22px;
  border-radius:999px;
  background:linear-gradient(90deg, var(--gold), var(--orange-soft));
  color:#1a1206;
  font-size:clamp(12px,1.3vw,14px);
  font-weight:500;
  white-space:nowrap;
  flex-shrink:0;
  transition:transform .3s ease, box-shadow .3s ease;
}
.cta-btn:hover{
  transform:translateY(-2px);
  box-shadow:0 10px 24px -8px rgba(224,122,60,0.6);
}

/* ===================================================
   Hero
   =================================================== */
.hero{
  position:relative;
  min-height:100svh;
  overflow:hidden;
  background:
    radial-gradient(120% 90% at 15% 0%, #131a2e 0%, transparent 55%),
    linear-gradient(190deg, #0d1326 0%, var(--navy-deep) 55%, #000 100%);
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  padding-top:clamp(90px,14vw,140px);
}

.hero-stars{
  position:absolute;
  inset:0;
  background-image:
    radial-gradient(1.5px 1.5px at 12% 18%, rgba(255,255,255,.55) 50%, transparent 100%),
    radial-gradient(1.5px 1.5px at 32% 42%, rgba(255,255,255,.4) 50%, transparent 100%),
    radial-gradient(1px 1px at 8% 60%, rgba(255,255,255,.35) 50%, transparent 100%),
    radial-gradient(1px 1px at 22% 78%, rgba(255,255,255,.35) 50%, transparent 100%),
    radial-gradient(1.5px 1.5px at 45% 12%, rgba(255,255,255,.3) 50%, transparent 100%),
    radial-gradient(1px 1px at 3% 35%, rgba(255,255,255,.3) 50%, transparent 100%),
    radial-gradient(1.5px 1.5px at 18% 90%, rgba(255,255,255,.3) 50%, transparent 100%);
  background-repeat:repeat;
  background-size:420px 420px;
  opacity:.8;
  pointer-events:none;
}

.hero-beam{
  position:absolute;
  top:-10%;
  right:-10%;
  width:60%;
  height:120%;
  background:conic-gradient(from 200deg at 70% 30%, transparent 0deg, rgba(224,122,60,0.55) 18deg, transparent 40deg, transparent 320deg, rgba(224,122,60,0.35) 340deg, transparent 360deg);
  filter:blur(40px);
  opacity:.85;
  pointer-events:none;
  mix-blend-mode:screen;
}

.hero-side-text{
  position:absolute;
  top:50%;
  margin:0;
  font-family:"Jost",sans-serif;
  font-weight:300;
  font-size:clamp(9px,0.9vw,11px);
  line-height:1.9;
  letter-spacing:0.03em;
  color:rgba(244,237,226,0.5);
  writing-mode:vertical-rl;
  white-space:nowrap;
}
.hero-side-text--left{
  left:clamp(16px,3vw,40px);
  transform:translateY(-50%) rotate(180deg);
}
.hero-side-text--right{
  right:clamp(10px,2vw,24px);
  transform:translateY(-50%);
  letter-spacing:0.28em;
  color:rgba(244,237,226,0.4);
}

/* --- photo collage --- */
.hero-collage{
  position:absolute;
  top:clamp(70px,11vw,110px);
  left:50%;
  transform:translateX(-50%);
  width:min(92%, 980px);
  height:clamp(220px,32vw,400px);
  pointer-events:none;
}
.collage-main{
  position:absolute;
  left:14%;
  right:14%;
  top:0;
  bottom:8%;
  border-radius:2px;
  overflow:hidden;
  background:
    linear-gradient(140deg, rgba(224,122,60,0.35), transparent 55%),
    linear-gradient(200deg, #1c2440 0%, #0a0e1c 55%, #241108 100%);
  box-shadow:0 30px 60px -20px rgba(0,0,0,0.6);
}
.collage-shine{
  position:absolute;
  inset:0;
  background:
    repeating-linear-gradient(115deg, rgba(255,255,255,0.05) 0 2px, transparent 2px 60px),
    radial-gradient(60% 70% at 75% 30%, rgba(242,161,95,0.35), transparent 70%);
}
.collage-tile{
  position:absolute;
  border-radius:2px;
  background:linear-gradient(160deg, #1a2036 0%, #0a0e1c 100%);
  box-shadow:0 20px 40px -16px rgba(0,0,0,0.55);
}
.collage-tile--tl{
  left:0; top:6%;
  width:14%; height:46%;
  background:linear-gradient(150deg,#233047,#0a0e1c);
}
.collage-tile--tr{
  right:2%; top:0;
  width:15%; height:40%;
  background:linear-gradient(150deg,#3a2011,#0a0e1c);
}
.collage-tile--br{
  right:0; bottom:0;
  width:16%; height:44%;
  background:linear-gradient(150deg,#2c1b12,#0a0e1c);
}

/* --- headline content --- */
.hero-content{
  position:relative;
  z-index:2;
  padding-top:clamp(220px,34vw,340px);
  padding-bottom:clamp(48px,7vw,80px);
}

.hero-eyebrow{
  font-family:"Jost",sans-serif;
  font-weight:300;
  letter-spacing:0.3em;
  font-size:clamp(10px,1vw,12px);
  color:rgba(244,237,226,0.5);
  margin:0 0 clamp(14px,2vw,20px);
}

.hero-title{
  margin:0;
  font-weight:700;
  font-size:clamp(30px,6.2vw,72px);
  line-height:1.35;
  color:var(--white);
  text-shadow:0 4px 30px rgba(0,0,0,0.5);
}
.hero-title .line{
  display:block;
  opacity:0;
  transform:translateY(18px);
  animation:lineIn 1s cubic-bezier(.2,.7,.2,1) forwards;
}
.hero-title .line:nth-child(2){ animation-delay:.18s; }
@keyframes lineIn{
  to{ opacity:1; transform:translateY(0); }
}

.hero-badges{
  display:flex;
  gap:clamp(10px,1.6vw,16px);
  margin-top:clamp(28px,4vw,44px);
  flex-wrap:wrap;
}
.badge-chip{
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px 16px;
  border-radius:8px;
  background:rgba(244,237,226,0.06);
  border:1px solid rgba(244,237,226,0.15);
  backdrop-filter:blur(6px);
}
.badge-chip-num{
  font-family:"Jost",sans-serif;
  font-weight:500;
  font-size:clamp(15px,1.8vw,20px);
  color:var(--gold);
}
.badge-chip-text{
  font-size:clamp(10px,1vw,11px);
  line-height:1.4;
  color:rgba(244,237,226,0.75);
}

.hero-scroll{
  position:absolute;
  right:clamp(20px,3vw,40px);
  bottom:clamp(18px,3vw,32px);
  display:flex;
  align-items:center;
  gap:10px;
  font-family:"Jost",sans-serif;
  font-size:11px;
  letter-spacing:0.2em;
  color:rgba(244,237,226,0.5);
}
.hero-scroll i{
  display:block;
  width:1px;
  height:34px;
  background:linear-gradient(180deg, rgba(244,237,226,0.7), transparent);
  position:relative;
  overflow:hidden;
}
.hero-scroll i::after{
  content:"";
  position:absolute;
  left:0; top:-100%;
  width:100%; height:100%;
  background:var(--gold);
  animation:scrollDrop 1.8s ease-in-out infinite;
}
@keyframes scrollDrop{
  0%{ top:-100%; }
  60%{ top:100%; }
  100%{ top:100%; }
}

/* ===================================================
   Responsive
   =================================================== */
@media screen and (max-width:1023px){
  .site-nav{ display:none; }
  .hero-side-text--left{ display:none; }
}

@media screen and (max-width:767px){
  .hero{ padding-top:110px; }
  .hero-collage{ top:82px; height:180px; }
  .hero-content{ padding-top:200px; }
  .hero-badges{ gap:8px; }
  .badge-chip{ padding:8px 12px; }
  .hero-scroll{ display:none; }
}

@media screen and (max-width:480px){
  .site-header{ padding:14px 16px; }
  .cta-btn span{ display:none; }
  .cta-btn{ padding:12px; }
  .hero-collage{ width:100%; }
  .collage-tile--tl, .collage-tile--tr, .collage-tile--br{ opacity:.7; }
}