/* === 夜キャラ診断 Cinema Noir — 共通シェル === */
:root{
  --bg:#04040e;
  --bg-2:#0a0a1a;
  --ink:#e9e6ff;
  --ink-mute:#9a96b8;
  --ink-faint:#6c688a;
  --violet:#9B7CF8;
  --violet-deep:#6d4dd9;
  --cyan:#22D3EE;
  --pink:#F472B6;
  --gold:#e8c574;
  --line:rgba(255,255,255,0.08);
  --line-strong:rgba(255,255,255,0.16);
  --glass:rgba(14,12,32,0.45);
  --glass-strong:rgba(22,18,52,0.65);
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{
  background:var(--bg);
  color:var(--ink);
  font-family:"Noto Sans JP",sans-serif;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body{min-height:100vh;position:relative}
a{color:inherit;text-decoration:none}
button{font-family:inherit;color:inherit}

/* === Background layers === */
#stars{position:fixed;inset:0;z-index:0;pointer-events:none}
.nebula{
  position:fixed;inset:0;z-index:1;pointer-events:none;
  background:
    radial-gradient(ellipse 55% 45% at 15% 20%, rgba(155,124,248,0.22), transparent 60%),
    radial-gradient(ellipse 50% 40% at 85% 75%, rgba(34,211,238,0.16), transparent 60%),
    radial-gradient(ellipse 35% 30% at 50% 95%, rgba(244,114,182,0.12), transparent 60%);
  mix-blend-mode:screen;
}
.constellation{position:fixed;inset:0;z-index:1;pointer-events:none;overflow:hidden}
.const-char{
  position:absolute;width:130px;height:130px;
  opacity:.08;
  filter:grayscale(.4) brightness(.85) saturate(.7) drop-shadow(0 0 18px rgba(155,124,248,.4));
  mix-blend-mode:screen;
  animation:driftFloat 22s ease-in-out infinite;
  will-change:transform;
}
.const-char img{width:100%;height:100%;object-fit:contain}
@keyframes driftFloat{
  0%,100%{transform:translate(0,0) rotate(0deg) scale(1)}
  33%{transform:translate(20px,-30px) rotate(2deg) scale(1.04)}
  66%{transform:translate(-15px,20px) rotate(-2deg) scale(.97)}
}
.grain{
  position:fixed;inset:0;z-index:2;pointer-events:none;opacity:.05;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}
.vignette{
  position:fixed;inset:0;z-index:2;pointer-events:none;
  background:radial-gradient(ellipse 90% 70% at 50% 50%,transparent 50%,rgba(4,4,14,.6) 100%);
}

main, .nt-main{position:relative;z-index:5}

/* === Top Nav === */
.nt-nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  display:flex;justify-content:space-between;align-items:center;
  padding:14px 28px;
  backdrop-filter:blur(16px) saturate(140%);
  background:rgba(4,4,14,0.55);
  border-bottom:1px solid var(--line);
}
.nt-brand{
  font-family:"Cormorant Garamond",serif;
  font-size:22px;font-weight:600;letter-spacing:.06em;
  background:linear-gradient(90deg,#fff,var(--violet),var(--cyan));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  display:flex;align-items:center;gap:10px;
}
.nt-brand-mark{
  display:inline-block;width:8px;height:8px;border-radius:50%;
  background:var(--violet);
  box-shadow:0 0 12px var(--violet),0 0 24px rgba(155,124,248,.6);
  animation:pulse 2.4s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:.7}50%{opacity:1}}
.nt-nav-links{
  display:flex;gap:24px;
  font-family:"Space Mono",monospace;font-size:11px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--ink-mute);
}
.nt-nav-links a{transition:color .25s}
.nt-nav-links a:hover, .nt-nav-links a.active{color:var(--ink)}
.nt-nav-links a.active{
  position:relative;
  color:#fff;
}
.nt-nav-links a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-8px;height:1px;
  background:linear-gradient(90deg,var(--violet),var(--cyan));
}

/* Mobile drawer toggle */
.nt-burger{
  display:none;width:38px;height:38px;border-radius:50%;
  background:rgba(255,255,255,0.04);border:1px solid var(--line);
  cursor:pointer;position:relative;
}
.nt-burger span{
  position:absolute;left:10px;right:10px;height:1px;
  background:var(--ink-mute);transition:.3s;
}
.nt-burger span:nth-child(1){top:14px}
.nt-burger span:nth-child(2){top:18px}
.nt-burger span:nth-child(3){top:22px}
.nt-burger.open span:nth-child(1){top:18px;transform:rotate(45deg);background:var(--violet)}
.nt-burger.open span:nth-child(2){opacity:0}
.nt-burger.open span:nth-child(3){top:18px;transform:rotate(-45deg);background:var(--violet)}

@media (max-width:780px){
  .nt-nav{
    padding:12px 18px;
    backdrop-filter:none !important;
    -webkit-backdrop-filter:none !important;
    transform:none !important;
    filter:none !important;
  }
  .nt-nav-links{
    position:fixed !important;top:0;right:0;bottom:0;left:auto;
    width:60% !important;max-width:280px;min-width:220px;
    background-color:#04040e !important;
    background-image:none !important;
    backdrop-filter:none !important;
    border-left:1px solid var(--line) !important;
    flex-direction:column;gap:0;padding:100px 24px 40px;
    align-items:flex-end;justify-content:flex-start;
    opacity:0;pointer-events:none;
    transform:translateX(20px);
    transition:opacity .3s ease, transform .3s ease;
    z-index:9999;
  }
  .nt-nav-links.open{opacity:1;pointer-events:all;transform:translateX(0)}
  .nt-nav-links a{
    padding:22px 0;border-bottom:1px solid var(--line);
    font-size:14px;letter-spacing:.22em;
    text-align:right;
    width:100%;
  }
  .nt-nav-links a.active::after{display:none}
  .nt-burger{display:block;z-index:10000;position:relative}
  .nt-overlay{ display:none; }
}

/* === Buttons === */
.nt-btn{
  position:relative;display:inline-flex;align-items:center;gap:10px;
  padding:16px 32px;border-radius:99px;
  font-family:"Space Mono",monospace;font-size:12px;letter-spacing:.18em;
  text-transform:uppercase;cursor:pointer;
  border:1px solid var(--line);
  transition:transform .35s cubic-bezier(.2,.8,.2,1),box-shadow .35s,border-color .35s;
  backdrop-filter:blur(12px);
  overflow:hidden;isolation:isolate;
  background:rgba(255,255,255,0.03);color:var(--ink);
}
.nt-btn:hover{
  transform:translateY(-3px);
  border-color:rgba(155,124,248,.5);
  box-shadow:0 12px 40px rgba(155,124,248,.15);
}
.nt-btn-primary{
  background:linear-gradient(135deg,var(--violet),var(--cyan));
  color:#0b0820;border-color:transparent;
  box-shadow:0 20px 60px -20px rgba(155,124,248,.5);
}
.nt-btn-primary:hover{
  transform:translateY(-3px);
  box-shadow:0 0 24px rgba(155,124,248,.5),0 28px 80px -16px rgba(34,211,238,.4);
}
.nt-btn-primary::before{
  content:"";position:absolute;inset:-2px;
  background:conic-gradient(from 0deg,var(--violet),var(--cyan),var(--pink),var(--violet));
  border-radius:99px;z-index:-2;animation:spin 4s linear infinite;
  opacity:0;transition:opacity .3s;
}
.nt-btn-primary:hover::before{opacity:.55}
@keyframes spin{to{transform:rotate(360deg)}}
.nt-btn .arrow{transition:transform .3s}
.nt-btn:hover .arrow{transform:translateX(4px)}

/* === Section base === */
.nt-section{
  padding:80px 32px 60px;position:relative;z-index:5;
  max-width:920px;margin:0 auto;
}
.nt-eyebrow{
  font-family:"Space Mono",monospace;font-size:10px;letter-spacing:.34em;
  text-transform:uppercase;color:var(--cyan);margin-bottom:16px;
  display:inline-flex;align-items:center;gap:8px;
}
.nt-eyebrow::before{
  content:"";width:24px;height:1px;background:var(--cyan);opacity:.5;
}
.nt-title{
  font-family:"Cormorant Garamond",serif;font-weight:500;
  font-size:clamp(36px,6vw,64px);line-height:1.05;letter-spacing:-.01em;
  margin-bottom:36px;text-wrap:balance;
}
.nt-title em{
  font-style:italic;
  background:linear-gradient(135deg,var(--violet),var(--cyan));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}

/* === Card / Glass === */
.nt-card{
  position:relative;
  border-radius:24px;
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(20px) saturate(140%);
  overflow:hidden;
}
.nt-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);
}

/* utility */
.serif{font-family:"Cormorant Garamond",serif}
.mono{font-family:"Space Mono",monospace}
.gradient-text{
  background:linear-gradient(135deg,#fff,var(--violet) 50%,var(--cyan));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.violet-text{color:var(--violet)}
.cyan-text{color:var(--cyan)}
.pink-text{color:var(--pink)}

@keyframes ntFadeUp{
  from{opacity:0;transform:translateY(20px)}
  to{opacity:1;transform:translateY(0)}
}
@keyframes ntFadeIn{
  from{opacity:0}
  to{opacity:1}
}
@keyframes ntPop{
  0%{opacity:0;transform:scale(.92)}
  100%{opacity:1;transform:scale(1)}
}