/* ============================================
   FORGE Personal Gym — パーソナルジム
   Theme: Bold Black × Red / Split Screen / Aggressive
   STANDALONE
   ============================================ */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter','Noto Sans JP',system-ui,sans-serif;color:rgba(255,255,255,.4);background:#000;font-size:15px;line-height:1.8;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
::selection{background:rgba(239,68,68,.3);color:#fff}

:root{
  --black:#000;--dark:#0a0a0a;--dark2:#111;--dark3:#1a1a1a;
  --red:#ef4444;--red2:#dc2626;--red-glow:rgba(239,68,68,.1);
  --heading:#fff;--text:rgba(255,255,255,.35);
  --sans:'Inter','Noto Sans JP',sans-serif;
}

/* === HEADER — Sticky, red accent line === */
.hdr{position:fixed;top:0;left:0;width:100%;z-index:800;background:rgba(0,0,0,.85);backdrop-filter:blur(12px);border-bottom:1px solid rgba(239,68,68,.1);display:flex;align-items:center;justify-content:space-between;padding:0 clamp(1.5rem,4vw,3rem);height:60px}
.hdr-logo{font-size:.9rem;font-weight:900;color:#fff;letter-spacing:.15em}
.hdr-logo span{color:var(--red)}
.hdr-nav{display:flex;align-items:center;gap:2rem}
.hdr-nav a{font-size:.7rem;font-weight:600;color:rgba(255,255,255,.35);letter-spacing:.05em;transition:color .2s;text-transform:uppercase}
.hdr-nav a:hover{color:#fff}
.hdr-cta{font-size:.65rem;font-weight:700;padding:.45rem 1.3rem;background:var(--red);color:#fff;letter-spacing:.08em;text-transform:uppercase;transition:all .3s}
.hdr-cta:hover{opacity:1;background:var(--red2);box-shadow:0 0 20px var(--red-glow)}
@media(max-width:768px){.hdr-nav a:not(.hdr-cta){display:none}}

/* === HERO — Split: Left text, Right full image === */
.hero-gym{display:grid;grid-template-columns:1fr 1fr;min-height:100vh}
.hero-gym-text{display:flex;flex-direction:column;justify-content:center;padding:clamp(4rem,8vw,6rem) clamp(2rem,5vw,4rem);padding-top:calc(60px + clamp(2rem,4vw,4rem));background:var(--black)}
.hero-gym-text .tag{font-size:.55rem;font-weight:700;letter-spacing:.2em;color:var(--red);text-transform:uppercase;margin-bottom:1.5rem}
.hero-gym-text h1{font-size:clamp(2.5rem,6vw,5rem);font-weight:900;color:#fff;line-height:1.05;letter-spacing:-.03em;text-transform:uppercase;margin-bottom:1.5rem}
.hero-gym-text h1 span{color:var(--red);display:block}
.hero-gym-text p{font-size:.85rem;line-height:2;max-width:380px;margin-bottom:2rem}
.hero-gym-text .btn-red{display:inline-flex;align-items:center;gap:.5rem;padding:.8rem 2rem;background:var(--red);color:#fff;font-size:.75rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;transition:all .3s}
.hero-gym-text .btn-red:hover{opacity:1;background:var(--red2);box-shadow:0 0 30px var(--red-glow);transform:translateY(-2px)}
.hero-gym-img{position:relative;overflow:hidden}
.hero-gym-img img{width:100%;height:100%;object-fit:cover;filter:contrast(1.1) brightness(.8)}
.hero-gym-img::after{content:'FORGE';position:absolute;bottom:clamp(1rem,3vw,2rem);right:clamp(1rem,3vw,2rem);font-size:clamp(3rem,8vw,7rem);font-weight:900;color:rgba(255,255,255,.03);letter-spacing:.1em;text-transform:uppercase;line-height:1}
@media(max-width:768px){.hero-gym{grid-template-columns:1fr}.hero-gym-img{height:50vh}}

/* === STATS BAR === */
.stats{display:grid;grid-template-columns:repeat(4,1fr);background:var(--red)}
.stat{padding:clamp(1.5rem,3vw,2rem);text-align:center;border-right:1px solid rgba(255,255,255,.1)}
.stat:last-child{border-right:none}
.stat-val{font-size:clamp(1.8rem,3.5vw,2.5rem);font-weight:900;color:#fff;letter-spacing:-.02em}
.stat-lbl{font-size:.55rem;font-weight:600;color:rgba(255,255,255,.6);letter-spacing:.1em;text-transform:uppercase;margin-top:.15rem}
@media(max-width:640px){.stats{grid-template-columns:repeat(2,1fr)}}

/* === PROGRAMS === */
.programs{padding:clamp(5rem,10vw,8rem) clamp(1.5rem,4vw,3rem)}
.programs h2{font-size:clamp(1.5rem,3.5vw,2.5rem);font-weight:900;color:#fff;text-transform:uppercase;letter-spacing:.05em;margin-bottom:2.5rem}
.programs h2 span{color:var(--red)}
.prog-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:3px}
.prog{position:relative;overflow:hidden;aspect-ratio:16/10;cursor:pointer}
.prog img{width:100%;height:100%;object-fit:cover;filter:brightness(.3);transition:all .6s}
.prog:hover img{filter:brightness(.15);transform:scale(1.05)}
.prog-text{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;padding:clamp(1.5rem,3vw,2rem)}
.prog-num{font-size:3rem;font-weight:900;color:rgba(239,68,68,.15);line-height:1;margin-bottom:.5rem}
.prog h3{font-size:clamp(1rem,2vw,1.3rem);font-weight:800;color:#fff;text-transform:uppercase;letter-spacing:.03em;margin-bottom:.3rem}
.prog p{font-size:.7rem;color:rgba(255,255,255,.35);max-width:300px;line-height:1.7}
.prog-price{font-size:.65rem;font-weight:700;color:var(--red);margin-top:.5rem;letter-spacing:.05em}
@media(max-width:640px){.prog-grid{grid-template-columns:1fr}}

/* === RESULTS — Before/After concept === */
.results{padding:clamp(5rem,10vw,8rem) clamp(1.5rem,4vw,3rem);background:var(--dark2);border-top:1px solid rgba(255,255,255,.03)}
.results h2{font-size:clamp(1.5rem,3.5vw,2.5rem);font-weight:900;color:#fff;text-transform:uppercase;letter-spacing:.05em;margin-bottom:2rem}
.results h2 span{color:var(--red)}
.result-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
.result-card{background:var(--dark3);padding:1.5rem;transition:all .3s}
.result-card:hover{background:rgba(239,68,68,.05);border-color:rgba(239,68,68,.2)}
.result-card .period{font-size:.55rem;font-weight:700;color:var(--red);letter-spacing:.1em;text-transform:uppercase;margin-bottom:.75rem}
.result-card .change{font-size:1.8rem;font-weight:900;color:#fff;letter-spacing:-.02em;margin-bottom:.3rem}
.result-card .detail{font-size:.7rem;line-height:1.7}
@media(max-width:768px){.result-cards{grid-template-columns:1fr}}

/* === CTA === */
.cta-gym{background:var(--red);padding:clamp(4rem,8vw,6rem) clamp(1.5rem,4vw,3rem);text-align:center}
.cta-gym h2{font-size:clamp(1.5rem,4vw,2.5rem);font-weight:900;color:#fff;text-transform:uppercase;letter-spacing:.05em;margin-bottom:.5rem}
.cta-gym p{font-size:.8rem;color:rgba(255,255,255,.6);margin-bottom:1.5rem}
.cta-gym-btn{display:inline-flex;align-items:center;gap:.5rem;padding:.8rem 2.5rem;background:#fff;color:var(--red);font-size:.75rem;font-weight:800;text-transform:uppercase;letter-spacing:.08em;transition:all .3s}
.cta-gym-btn:hover{opacity:1;transform:translateY(-2px);box-shadow:0 10px 30px rgba(0,0,0,.3)}

/* === FOOTER === */
.ftr-gym{padding:1.5rem clamp(1.5rem,4vw,3rem);display:flex;justify-content:space-between;font-size:.55rem;color:rgba(255,255,255,.1);border-top:1px solid rgba(255,255,255,.03)}
@media(max-width:640px){.ftr-gym{flex-direction:column;gap:.4rem}}

/* === ANIMATIONS === */
.sa{opacity:0;transform:translateY(20px);transition:opacity .7s cubic-bezier(.22,1,.36,1),transform .9s cubic-bezier(.22,1,.36,1)}
.sa.v{opacity:1;transform:none}
.d1{transition-delay:.1s}.d2{transition-delay:.2s}.d3{transition-delay:.3s}

.badge{position:fixed;bottom:1.25rem;right:1.25rem;font-size:.5rem;color:rgba(255,255,255,.08);letter-spacing:.05em;display:flex;align-items:center;gap:.3rem;z-index:700}
.badge::before{content:'';width:4px;height:4px;background:var(--red);border-radius:50%}