/* ===================== Nock — style.css (dark monotone / gold) ===================== */
:root{
  --ink:#f3f3f5;          /* main text on dark */
  --ink-2:#d7d7dc;
  --muted:#9a9aa4;
  --line:#2a2a31;         /* borders */
  --line-2:#37373f;

  --bg:#0e0e11;           /* near-black base (not pure black) */
  --bg-2:#131317;         /* slightly lighter section */
  --bg-soft:#131317;      /* (repurposed) dark section tone */
  --bg-soft-2:#1d1d22;    /* (repurposed) raised tone */
  --surface:#17171b;      /* cards */
  --surface-2:#1d1d23;

  /* gold accent (calm champagne gold) */
  --brand-a:#e8d6a2;      /* light gold  */
  --brand-b:#cdaa63;      /* gold        */
  --brand-c:#b7924c;      /* deep gold   */
  --grad:linear-gradient(120deg,#e8d6a2,#cdaa63 55%,#b0894b);
  --silver:#cfd2d9;

  --shadow:0 24px 60px -28px rgba(0,0,0,.8);
  --shadow-sm:0 12px 30px -18px rgba(0,0,0,.7);
  --radius:22px;
  --maxw:1160px;
  --header-h:68px;
  --font:"Noto Sans JP",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --display:"Poppins","Noto Sans JP",sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font);color:var(--ink);background:var(--bg);
  line-height:1.8;font-size:16px;letter-spacing:.01em;
  overflow-x:hidden;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.container.narrow{max-width:820px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  font-weight:700;border-radius:999px;cursor:pointer;border:0;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;font-family:var(--font);line-height:1;
}
.btn:hover{transform:translateY(-2px)}
.btn-sm{padding:.62em 1.15em;font-size:.9rem}
.btn-lg{padding:1.05em 1.9em;font-size:1.02rem}
.btn-primary{background:var(--grad);color:#1a1510;box-shadow:0 12px 28px -12px rgba(205,170,99,.55)}
.btn-primary:hover{box-shadow:0 16px 34px -12px rgba(205,170,99,.7)}
.btn-dark{background:#101013;color:#fff;border:1px solid var(--line-2)}
.btn-dark:hover{background:#000}
.btn-light{background:#f3f3f5;color:#141414;box-shadow:var(--shadow)}
.btn-ghost{background:rgba(255,255,255,.04);color:var(--ink);border:1.5px solid rgba(255,255,255,.22)}
.btn-ghost:hover{border-color:var(--brand-b);color:#fff;background:rgba(205,170,99,.08)}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;height:var(--header-h);z-index:100;
  display:flex;align-items:center;
  background:linear-gradient(180deg,rgba(8,8,10,.62),rgba(8,8,10,0));
  border-bottom:1px solid transparent;
  transition:background .3s,border-color .3s,box-shadow .3s,backdrop-filter .3s;
}
.site-header.scrolled{
  background:rgba(12,12,15,.82);backdrop-filter:saturate(160%) blur(14px);
  border-color:var(--line);box-shadow:0 10px 30px -20px rgba(0,0,0,.9);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:9px}
.brand-mark{border-radius:9px;box-shadow:0 2px 10px -3px rgba(0,0,0,.6)}
.brand-name{font-family:var(--display);font-weight:800;font-size:1.35rem;letter-spacing:-.02em;color:var(--ink)}
.nav{display:flex;gap:30px;margin-left:auto}
.nav a{font-size:.92rem;font-weight:500;color:var(--ink-2);position:relative;padding:4px 0}
.nav a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--grad);transition:width .25s}
.nav a:hover{color:#fff}
.nav a:hover::after{width:100%}
.header-cta{margin-left:6px}
.nav-toggle{display:none;flex-direction:column;gap:5px;width:42px;height:42px;
  align-items:center;justify-content:center;background:transparent;border:0;cursor:pointer}
.nav-toggle span{width:22px;height:2px;background:var(--ink);border-radius:2px;transition:.3s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- hero ---------- */
.hero{position:relative;background:#0a0a0a}
.hero-picture{display:block}
.hero-img{width:100%;height:auto;display:block}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-family:var(--display)}
.hero-actions{background:linear-gradient(180deg,#141418,var(--bg) 92%);padding:26px 0 34px}
.hero-actions-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:14px}
.hero-note{width:100%;text-align:center;margin-top:6px;font-size:.82rem;color:var(--muted)}

/* phone frame */
.phone-frame{
  position:relative;width:290px;border-radius:42px;padding:0;
  background:linear-gradient(160deg,#2a2a2a,#0e0e0e);
  box-shadow:0 40px 80px -30px rgba(0,0,0,.75),0 0 0 1px rgba(255,255,255,.06);
  transform:rotate(-2deg);
}
.phone-frame::before{
  content:"";position:absolute;top:14px;left:50%;transform:translateX(-50%);
  width:100px;height:26px;background:#0a0a0a;border-radius:0 0 16px 16px;z-index:2;
}
.phone-frame img{border-radius:34px;margin:12px;width:calc(100% - 24px)}
.phone-frame.small{width:240px;transform:rotate(2deg)}

/* ---------- marquee ---------- */
.marquee{background:#08080a;color:#d9d9de;overflow:hidden;padding:14px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.marquee-track{display:inline-flex;gap:24px;white-space:nowrap;
  font-family:var(--display);font-weight:700;font-size:1rem;letter-spacing:.04em;
  animation:marq 26s linear infinite;padding-left:24px}
.marquee-track span:nth-child(even){color:var(--brand-b)}
@keyframes marq{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ---------- section base ---------- */
.section{padding:96px 0}
.section-title{font-size:clamp(1.7rem,3.6vw,2.5rem);font-weight:900;line-height:1.3;letter-spacing:.01em;color:var(--ink)}
.eyebrow{display:inline-block;font-family:var(--display);font-weight:700;font-size:.8rem;
  letter-spacing:.18em;color:var(--brand-b);margin-bottom:12px}
.section-head.center{text-align:center;max-width:640px;margin:0 auto 54px}
.section-sub{color:var(--muted);margin-top:14px;font-size:1.02rem}

/* ---------- concept ---------- */
.concept{background:linear-gradient(180deg,var(--bg),var(--bg-2))}
.concept-inner{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:center}
.concept-media{position:relative}
.concept-media img{border-radius:var(--radius);box-shadow:var(--shadow);width:78%;border:1px solid var(--line)}
.concept-media-2{position:absolute;right:0;bottom:-38px;width:52%!important;
  border:6px solid var(--bg);box-shadow:var(--shadow)}
.concept-text p{color:var(--ink-2);margin-top:18px}
.stat-row{display:flex;gap:18px;margin-top:34px;flex-wrap:wrap}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:16px 20px}
.stat b{display:block;font-family:var(--display);font-size:1.5rem;line-height:1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{font-size:.82rem;color:var(--muted)}

/* ---------- features ---------- */
.features{background:var(--bg-2)}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feature-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:34px 28px;
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:rgba(205,170,99,.45)}
.feature-ico{
  width:58px;height:58px;border-radius:16px;display:flex;align-items:center;justify-content:center;
  font-size:1.7rem;background:var(--surface-2);border:1px solid var(--line);margin-bottom:18px;
}
.feature-card h3{font-size:1.15rem;margin-bottom:10px;color:var(--ink)}
.feature-card p{color:var(--muted);font-size:.95rem}

/* ---------- screens ---------- */
.screens{background:linear-gradient(180deg,var(--bg-2),var(--bg));overflow:hidden}
.screens-scroller{
  display:flex;gap:26px;overflow-x:auto;padding:10px 24px 30px;scroll-snap-type:x mandatory;
  -webkit-overflow-scrolling:touch;
}
.screens-scroller::-webkit-scrollbar{height:8px}
.screens-scroller::-webkit-scrollbar-thumb{background:rgba(205,170,99,.45);border-radius:8px}
.screen-item{flex:0 0 auto;width:250px;scroll-snap-align:center;text-align:center}
.screen-item img{border-radius:26px;box-shadow:var(--shadow);border:1px solid var(--line)}
.screen-item figcaption{margin-top:16px;font-weight:700;font-size:.95rem;color:var(--ink-2)}
.screens-scroller::after{content:"";flex:0 0 1px}

/* ---------- steps ---------- */
.steps{background:var(--bg)}
.step-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.step-card{
  position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:40px 30px 34px;overflow:hidden;
}
.step-no{
  font-family:var(--display);font-weight:800;font-size:3rem;line-height:1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  display:block;margin-bottom:14px;
}
.step-card h3{font-size:1.2rem;margin-bottom:8px;color:var(--ink)}
.step-card p{color:var(--muted);font-size:.95rem}

/* ---------- pricing ---------- */
.pricing{background:linear-gradient(180deg,var(--bg),var(--bg-2))}
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
.plan-card{
  position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:36px 30px;display:flex;flex-direction:column;transition:transform .25s,box-shadow .25s,border-color .25s;
}
.plan-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--line-2)}
.plan-card.featured{
  border:1px solid rgba(205,170,99,.55);color:var(--ink);
  background:linear-gradient(160deg,#1c1913,#141317);
  box-shadow:var(--shadow),0 0 0 1px rgba(205,170,99,.14);transform:scale(1.03);
}
.plan-card.featured:hover{transform:scale(1.03) translateY(-6px)}
.plan-ribbon{
  position:absolute;top:18px;right:18px;background:var(--grad);color:#1a1510;
  font-size:.72rem;font-weight:700;padding:.35em 1em;border-radius:999px;letter-spacing:.05em;
}
.plan-name{font-family:var(--display);font-weight:800;font-size:1.4rem;letter-spacing:-.01em;color:var(--ink)}
.plan-tag{font-size:.86rem;color:var(--muted);margin:6px 0 20px}
.plan-price{font-family:var(--display);font-weight:800;font-size:2.7rem;line-height:1;display:flex;align-items:flex-end;gap:2px;color:var(--ink)}
.plan-price .cur{font-size:1.3rem;margin-bottom:.35em}
.plan-price .per{font-size:1rem;color:var(--muted);font-weight:600;margin-bottom:.3em;margin-left:4px}
.plan-sub{font-size:.8rem;color:var(--muted);margin:10px 0 22px}
.plan-feats{list-style:none;display:flex;flex-direction:column;gap:12px;margin-top:auto}
.plan-feats li{position:relative;padding-left:28px;font-size:.93rem;color:var(--ink-2)}
.plan-feats li::before{
  content:"";position:absolute;left:0;top:.35em;width:17px;height:17px;border-radius:50%;
  background:var(--grad);
  -webkit-mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path fill='white' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/></svg>") center/13px no-repeat;
          mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path fill='white' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/></svg>") center/13px no-repeat;
}

.addon{margin-top:56px}
.addon-title{text-align:center;font-size:1.2rem;margin-bottom:22px;color:var(--ink)}
.addon-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;max-width:760px;margin:0 auto}
.addon-card{
  background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:24px 26px;text-align:center;
}
.addon-ico{font-size:1.8rem;margin-bottom:8px}
.addon-card b{font-size:1.05rem;color:var(--ink)}
.addon-card p{color:var(--muted);font-size:.88rem;margin:2px 0 12px}
.addon-price{font-size:.86rem;font-weight:700;color:var(--brand-b)}
.price-note{text-align:center;color:var(--muted);font-size:.8rem;margin-top:34px;line-height:1.7}

/* ---------- safety ---------- */
.safety{background:var(--bg-2)}
.safety-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.safety-list{list-style:none;margin-top:26px;display:flex;flex-direction:column;gap:18px}
.safety-list li{display:flex;flex-direction:column;gap:2px;padding-left:22px;position:relative}
.safety-list li::before{content:"";position:absolute;left:0;top:.6em;width:10px;height:10px;border-radius:3px;background:var(--grad)}
.safety-list b{font-size:1.05rem;color:var(--ink)}
.safety-list span{color:var(--muted);font-size:.94rem}
.safety-visual{display:flex;justify-content:center}

/* ---------- faq ---------- */
.faq{background:var(--bg)}
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-list details{
  background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:4px 24px;
  transition:box-shadow .25s,border-color .25s;
}
.faq-list details[open]{box-shadow:var(--shadow-sm);border-color:var(--line-2)}
.faq-list summary{
  list-style:none;cursor:pointer;font-weight:700;padding:18px 34px 18px 0;position:relative;font-size:1.02rem;color:var(--ink);
}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{
  content:"+";position:absolute;right:2px;top:50%;transform:translateY(-50%);
  font-size:1.5rem;font-weight:400;color:var(--brand-b);transition:transform .25s;
}
.faq-list details[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq-list details p{color:var(--muted);padding:0 0 20px;font-size:.95rem}

/* ---------- download ---------- */
.download{
  padding:100px 0;color:var(--ink);text-align:center;position:relative;overflow:hidden;
  background:
    radial-gradient(900px 480px at 50% -12%, rgba(205,170,99,.16), transparent 60%),
    linear-gradient(180deg,#15140f,#0d0d10);
  border-top:1px solid var(--line);
}
.download::before,.download::after{
  content:"";position:absolute;border-radius:50%;background:rgba(205,170,99,.08);filter:blur(6px)}
.download::before{width:280px;height:280px;top:-120px;left:-60px}
.download::after{width:340px;height:340px;bottom:-160px;right:-80px}
.download-inner{position:relative;z-index:1}
.download h2{font-size:clamp(1.8rem,4.2vw,2.8rem);font-weight:900;line-height:1.35;color:var(--ink)}
.download p{margin:18px 0 34px;font-size:1.05rem;color:var(--ink-2)}

/* ---------- footer ---------- */
.site-footer{background:#08080a;color:#cfcfd4;padding:64px 0 0;border-top:1px solid var(--line)}
.footer-inner{display:grid;grid-template-columns:1.3fr 1.7fr;gap:40px;padding-bottom:48px}
.footer-brand .brand-name{color:#fff}
.footer-brand p{color:#8b8b93;font-size:.9rem;margin-top:14px;max-width:26em}
.footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.footer-links h4{color:#fff;font-size:.9rem;margin-bottom:14px;font-family:var(--display);letter-spacing:.05em}
.footer-links a{display:block;color:#9a9aa2;font-size:.9rem;padding:5px 0;transition:color .2s}
.footer-links a:hover{color:var(--brand-b)}
.footer-bottom{border-top:1px solid var(--line);padding:22px 0}
.footer-bottom small{color:#77777f;font-size:.82rem}

/* ---------- to top ---------- */
.to-top{
  position:fixed;right:22px;bottom:22px;width:48px;height:48px;border-radius:50%;
  background:var(--grad);color:#1a1510;display:flex;align-items:center;justify-content:center;
  font-size:1.2rem;box-shadow:var(--shadow);opacity:0;pointer-events:none;transform:translateY(12px);
  transition:.3s;z-index:90;font-weight:700;
}
.to-top.show{opacity:1;pointer-events:auto;transform:translateY(0)}

/* ---------- reveal animation ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ===================== responsive ===================== */
@media (max-width:960px){
  .concept-inner,.safety-inner{grid-template-columns:1fr;gap:40px}
  .concept-media{max-width:440px;margin:0 auto}
  .safety-visual{order:-1}
  .feature-grid,.step-grid,.plan-grid{grid-template-columns:repeat(2,1fr)}
  .plan-card.featured{transform:none}
  .plan-card.featured:hover{transform:translateY(-6px)}
}
@media (max-width:760px){
  .nav,.header-cta{
    position:fixed;top:var(--header-h);left:0;right:0;
    flex-direction:column;background:rgba(14,14,18,.98);backdrop-filter:blur(14px);margin:0;gap:0;
    border-bottom:1px solid var(--line);
    max-height:0;overflow:hidden;transition:max-height .35s ease;box-shadow:var(--shadow-sm);
  }
  .nav{padding:0}
  .nav.open{max-height:340px}
  .header-cta.open{max-height:80px;padding:0}
  .nav a{padding:16px 24px;border-top:1px solid var(--line);width:100%}
  .nav a::after{display:none}
  .header-cta{border-radius:0;justify-content:center;padding:0}
  .header-cta.open{padding:16px 24px}
  .nav-toggle{display:flex}
  .section{padding:72px 0}
  .feature-grid,.step-grid,.plan-grid,.addon-grid{grid-template-columns:1fr}
  .concept-media-2{position:static;width:60%!important;margin:16px auto 0}
  .concept-media img{width:100%}
  .footer-inner{grid-template-columns:1fr;gap:32px}
  .footer-links{grid-template-columns:repeat(2,1fr)}
  .stat-row{justify-content:center}
}
@media (max-width:420px){
  .phone-frame{width:250px}
  .btn-lg{padding:.95em 1.4em;font-size:.95rem}
  .hero-actions-inner .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* ===================== legal pages (privacy / terms) ===================== */
.site-header.solid{
  position:sticky;background:rgba(14,14,18,.92);backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid var(--line);box-shadow:none;
}
.nav-min{display:flex;gap:22px;margin-left:auto;flex-wrap:wrap;align-items:center}
.nav-min a{font-size:.9rem;font-weight:500;color:var(--ink-2)}
.nav-min a:hover{color:var(--brand-b)}
.nav-min a[aria-current="page"]{color:var(--brand-b);font-weight:700}

.legal{background:linear-gradient(180deg,var(--bg-2),var(--bg) 280px)}
.legal-wrap{max-width:860px;margin:0 auto;padding:44px 24px 90px}
.legal-eyebrow{font-family:var(--display);font-weight:700;font-size:.78rem;letter-spacing:.16em;color:var(--brand-b);margin-bottom:10px}
.legal-title{font-size:clamp(1.7rem,4vw,2.3rem);font-weight:900;line-height:1.3;letter-spacing:.01em;color:var(--ink)}
.legal-updated{color:var(--muted);font-size:.85rem;margin-top:12px}
.legal-lead{margin:22px 0 8px;color:var(--ink-2)}
.legal-wrap h2{
  font-size:1.18rem;font-weight:800;line-height:1.5;margin:38px 0 12px;color:var(--ink);
  padding-left:14px;border-left:4px solid var(--brand-b);
}
.legal-wrap h3{font-size:1.02rem;font-weight:700;margin:22px 0 8px;color:var(--ink)}
.legal-wrap p{margin:10px 0;color:var(--ink-2);font-size:.97rem;line-height:1.9}
.legal-wrap ul,.legal-wrap ol{margin:10px 0 14px 1.5em;color:var(--ink-2);font-size:.97rem}
.legal-wrap li{margin:7px 0;line-height:1.85}
.legal-wrap a{color:var(--brand-b);text-decoration:underline}
.legal-table{width:100%;border-collapse:collapse;margin:14px 0;font-size:.92rem}
.legal-table th,.legal-table td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top;color:var(--ink-2)}
.legal-table th{background:var(--surface-2);white-space:nowrap;font-weight:700;color:var(--ink)}
.legal-note{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px 20px;margin:22px 0;font-size:.9rem;color:var(--muted)}
.legal-info{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:20px 24px;margin-top:30px}
.legal-info dt{font-weight:700;font-size:.85rem;color:var(--muted);margin-top:10px}
.legal-info dt:first-child{margin-top:0}
.legal-info dd{margin:2px 0 0;font-size:.97rem;color:var(--ink)}
@media (max-width:520px){
  .nav-min{gap:14px}
  .nav-min .brand-name{display:none}
}