/* =========================================================
   Avenir Main Styles — Healing x Modern
   2025-11-17
   ========================================================= */

/* ===== Color System ===== */
:root{
  --bg: #020617;            /* 背景（ダーク） */
  --bg-2: #020617;
  --ink: #e5e7eb;           /* 文字（ライト） */
  --muted: #9ca3af;         /* サブテキスト */
  --brand-1: #22c55e;       /* グリーン */
  --brand-2: #0ea5e9;       /* シアン */
  --brand-3: #6366f1;       /* バイオレット */
  --card: #020617;          /* カード背景 */
  --card-2: #020617;
  --border: rgba(148,163,184,0.4);
  --radius: 16px;
  --shadow: 0 16px 40px rgba(15,23,42,.7);
}

body{
  margin:0;
  font-family: system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans JP","Hiragino Kaku Gothic ProN","Hiragino Sans",Meiryo,sans-serif;
  line-height:1.7;
  color:var(--ink);
  background: radial-gradient(circle at 20% 0%, #0ea5e9 0, transparent 45%),
              radial-gradient(circle at 80% 100%, #22c55e 0, transparent 55%),
              #020617;
  overflow-x:hidden;
}

/* Reset系 */
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
a:hover{opacity:.9}
button,input,select,textarea{font:inherit;color:inherit}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace}

/* ===== Layout ===== */
.container{max-width:1200px;margin:0 auto;padding:32px 16px;}
.wrap{max-width:1200px;margin:0 auto;padding:12px 16px;}
.grid{display:grid;gap:16px;}
.grid-2{display:grid;gap:24px;}
@media(min-width:960px){ .grid-2{grid-template-columns:1.1fr 0.9fr;} }

.br-lg{display:none;}
@media(min-width:880px){ .br-lg{display:inline;} }

/* ===== Header ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:30;
  background:linear-gradient(180deg,rgba(2,6,23,.9),rgba(2,6,23,.6),transparent);
  backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(148,163,184,0.3);
}
.header__row{
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-weight:700;
}
.logo__mark{
  width:28px;height:28px;
  border-radius:999px;
  display:inline-grid;
  place-items:center;
  background:
    radial-gradient(circle at 30% 30%, #bbf7d0 0%, transparent 55%),
    conic-gradient(from 200deg,var(--brand-1),var(--brand-2),var(--brand-3));
  color:#020617;
  font-weight:800;
}
.logo__text{
  letter-spacing:0.06em;
  text-transform:uppercase;
  font-size:14px;
}
.nav{
  display:none;
  gap:20px;
  font-size:14px;
}
.nav a{
  color:var(--muted);
  text-decoration:none;
}
.nav a:hover{
  color:var(--ink);
  opacity:1;
}
.only-sp{display:inline-block;}
@media(min-width:880px){
  .nav{display:inline-flex;}
  .only-sp{display:none;}
}

/* ===== Buttons & Inputs ===== */
.btn{
  -webkit-tap-highlight-color:transparent;
  cursor:pointer;
  user-select:none;
  border-radius:999px;
  border:1px solid rgba(148,163,184,.5);
  background:rgba(15,23,42,.9);
  color:var(--ink);
  padding:9px 16px;
  font-size:14px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:6px;
  box-shadow:var(--shadow);
  transition:transform .15s ease,box-shadow .15s ease,opacity .15s ease;
}
.btn:hover{
  transform:translateY(-1px);
  box-shadow:0 18px 40px rgba(15,23,42,.9);
}
.btn:active{
  transform:translateY(0);
  opacity:.9;
  box-shadow:var(--shadow);
}
.btn--primary{
  border:none;
  background:linear-gradient(135deg,var(--brand-1),var(--brand-2));
  color:#020617;
  font-weight:600;
}
.btn--ghost{
  background:transparent;
  box-shadow:none;
}
.input{
  padding:9px 12px;
  border-radius:999px;
  border:1px solid rgba(148,163,184,.5);
  background:rgba(15,23,42,.85);
  color:var(--ink);
  min-width:0;
}

/* ===== Hero ===== */
.hero{
  position:relative;
  padding:72px 0 32px;
}
.hero__inner{
  text-align:center;
}
.hero__tag{
  display:inline-flex;
  align-items:center;
  padding:4px 10px;
  border-radius:999px;
  border:1px solid rgba(148,163,184,.4);
  font-size:12px;
  color:var(--muted);
  background:rgba(15,23,42,.7);
}
.hero__title{
  font-size:clamp(26px,4.6vw,40px);
  line-height:1.2;
  margin:14px 0 8px;
}
.grad{
  background:linear-gradient(130deg,var(--brand-1),var(--brand-2),var(--brand-3));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero__lead{
  color:var(--muted);
  margin:0 0 18px;
}
.hero__cta{
  display:flex;
  justify-content:center;
  gap:10px;
  flex-wrap:wrap;
  margin-bottom:10px;
}
.hero__sub{
  font-size:13px;
  color:var(--muted);
}
.hero__sub span{color:#a5f3fc;}

/* ===== Promo ===== */
.promo{
  padding:10px 0 12px;
}
.promo__inner{
  display:grid;
  gap:24px;
  align-items:center;
  width:min(1100px,100%);
  margin:0 auto;
}
.frame-16x9{
  position:relative;
  width:100%;
  padding-top:56.25%;
  border-radius:20px;
  overflow:hidden;
  box-shadow:var(--shadow);
  background:#020617;
}
.frame-16x9 iframe{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  border:0;
}
.promo__text h2{
  margin:0 0 8px;
}
.steps{
  padding-left:1.4em;
  margin:0 0 10px;
}
.steps li{margin:.2em 0;}
.checks{
  padding-left:1.4em;
  margin:0;
}
.checks li{margin:.2em 0;}

@media(min-width:960px){
  .promo__inner{
    grid-template-columns:1.2fr 1fr;
  }
}

/* ===== Catalog ===== */
.catalog{
  padding:28px 0 24px;
}
.catalog__head{
  display:flex;
  flex-direction:column;
  gap:10px;
  align-items:flex-start;
  margin-bottom:10px;
}
.catalog__head h2{
  margin:0;
}
.kicker{
  font-size:14px;
  color:var(--muted);
  margin:4px 0 0;
}
.filters{
  display:flex;
  width:100%;
  gap:8px;
}
@media(min-width:840px){
  .catalog__head{
    flex-direction:row;
    justify-content:space-between;
    align-items:center;
  }
  .filters{width:auto;}
}
.cards{
  display:grid;
  grid-template-columns:1fr;
  gap:16px;
}
@media(min-width:720px){
  .cards{grid-template-columns:repeat(3,1fr);}
}
.audio-cards .card:nth-child(2){
  transform:translateY(10px);
}
.audio-cards .card:nth-child(3){
  transform:translateY(20px);
}

/* ===== Card ===== */
.card{
  position:relative;
  background:radial-gradient(circle at 0 0,rgba(34,197,94,.16),transparent 55%),
             radial-gradient(circle at 100% 100%,rgba(56,189,248,.16),transparent 55%),
             rgba(15,23,42,.98);
  border:1px solid rgba(148,163,184,.5);
  border-radius:var(--radius);
  padding:16px 14px 14px;
  box-shadow:var(--shadow);
  display:grid;
  gap:10px;
}
.card__img{
  border-radius:12px;
  background:radial-gradient(circle at 20% 0%,rgba(56,189,248,.7),transparent 60%),
             radial-gradient(circle at 80% 100%,rgba(34,197,94,.7),transparent 60%),
             #020617;
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
}
.card__img--music::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(135deg,rgba(15,23,42,.0),rgba(15,23,42,.85));
}
.card__img--img{
  background:radial-gradient(circle at 50% 0%,rgba(244,114,182,.5),transparent 60%),
             radial-gradient(circle at 0% 100%,rgba(129,140,248,.5),transparent 60%),
             #020617;
}
.tag-pill{
  position:absolute;
  left:10px;
  top:10px;
  padding:4px 10px;
  border-radius:999px;
  font-size:11px;
  background:rgba(15,23,42,.9);
  color:#e5e7eb;
  border:1px solid rgba(148,163,184,.6);
}
.card__title{
  margin:0;
  font-weight:700;
}
.card__meta{
  font-size:13px;
  color:var(--muted);
}
.badges{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
}
.badge{
  font-size:11px;
  padding:3px 8px;
  border-radius:999px;
  border:1px solid rgba(148,163,184,.5);
  color:#e5e7eb;
  background:rgba(15,23,42,.9);
}
.card__row{
  display:grid;
  grid-template-columns:1fr auto;
  gap:10px;
  align-items:center;
}
.price{
  font-weight:700;
  font-size:15px;
}
.card__ctrl{
  display:flex;
  gap:6px;
}

/* ===== Instagram Section ===== */
.instagram{
  padding:18px 0 36px;
}
.instagram__inner{
  align-items:center;
}
.instagram__inner p{
  color:var(--muted);
}
.instagram__mock{
  display:flex;
  justify-content:center;
}
.insta-frame{
  width:260px;
  border-radius:24px;
  padding:12px 10px 10px;
  border:1px solid rgba(148,163,184,.5);
  background:rgba(15,23,42,.95);
  box-shadow:var(--shadow);
}
.insta-header{
  height:24px;
  border-radius:12px;
  background:linear-gradient(90deg,#f97316,#ec4899,#6366f1);
  font-size:11px;
  font-weight:600;
  color:#f9fafb;
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom:10px;
}
.insta-post{
  height:60px;
  border-radius:16px;
  background:radial-gradient(circle at 10% 0%,rgba(56,189,248,.6),transparent 55%),
             radial-gradient(circle at 90% 100%,rgba(236,72,153,.6),transparent 55%),
             #020617;
  margin-bottom:8px;
}
.insta-post--2{
  background:radial-gradient(circle at 20% 0%,rgba(129,140,248,.7),transparent 60%),
             radial-gradient(circle at 80% 100%,rgba(45,212,191,.7),transparent 60%),
             #020617;
}
.insta-post--3{
  background:radial-gradient(circle at 50% 0%,rgba(250,204,21,.7),transparent 60%),
             radial-gradient(circle at 0% 100%,rgba(96,165,250,.7),transparent 60%),
             #020617;
}

/* ===== Plans ===== */
.plans{
  padding:16px 0 48px;
}
.plans h2{
  margin-bottom:4px;
}
.plans__note{
  color:var(--muted);
  margin-top:0;
}
.plans__grid{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:12px;
}
.note{
  font-size:12px;
  color:var(--muted);
  margin-top:12px;
}

/* ===== Footer ===== */
.site-footer{
  border-top:1px solid rgba(148,163,184,.4);
  background:rgba(2,6,23,.95);
  padding:24px 0 30px;
}
.footer__row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.footer__row .note{
  margin:0;
}
.sns{
  display:flex;
  gap:14px;
  font-size:14px;
}
.sns a{
  color:var(--muted);
}
.sns a:hover{
  color:var(--ink);
}

/* ===== Background Canvas ===== */
#bg-canvas,
#viz-canvas{
  position:fixed;
  inset:0;
  width:100%;
  height:100%;
  z-index:-2;
  display:block;
}
#viz-canvas{
  z-index:-1;
  mix-blend-mode:screen;
  opacity:.36;
}

/* Audio プレイヤー（試聴用） */
audio#player{
  display:block;
  width:min(360px,92vw);
  margin:0 auto 24px;
}

/* Scrollbar (WebKit) */
::-webkit-scrollbar{width:10px;}
::-webkit-scrollbar-thumb{background:#1f2937;border-radius:999px;}
::-webkit-scrollbar-track{background:#020617;}

/* Focus */
:focus-visible{
  outline:2px solid var(--brand-2);
  outline-offset:3px;
}