:root{
  --bg-1:#0A0E1E; --bg-2:#0D1A14;
  --glass:rgba(255,255,255,.05); --gline:rgba(255,255,255,.13); --gline-soft:rgba(255,255,255,.08);
  --green:#1F9D3A; --green-h:#36B653; --green-l:#6BD488; --glow:#5ED67C;
  --red:#F07A7A; --paper:#E9EDF5; --mute:#93A2BF; --mute-2:#5F6E8C;
  --ink:#EEF1FA; --dim:#8C96B8; --faint:#5A6488; --line:rgba(255,255,255,.09);
  --max:1120px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:
    radial-gradient(1000px 560px at 75% -12%, var(--bg-2) 0%, transparent 60%),
    radial-gradient(800px 500px at -10% 40%, #16233C 0%, transparent 55%),
    var(--bg-1);
  color:var(--paper);font-family:'Sora',system-ui,sans-serif;font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;
}
::selection{background:var(--green);color:#0A0E1E}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible{outline:2px solid var(--green);outline-offset:3px;border-radius:4px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 28px}
.eyebrow{font-family:'Roboto Mono',monospace;font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;color:var(--green)}
h1,h2,h3,h4{font-family:'Sora',sans-serif;line-height:1.14}
h2{font-size:clamp(1.6rem,3.2vw,2.3rem);font-weight:800;letter-spacing:-.015em}
.sub{color:var(--mute);max-width:640px;font-size:1.02rem}
section{padding:66px 0}
.g{background:var(--glass);border:1px solid var(--gline);border-radius:16px;backdrop-filter:blur(12px)}
.btn{display:inline-block;font-family:'Sora',sans-serif;font-weight:700;font-size:.88rem;padding:13px 28px;border-radius:100px;background:var(--green);color:#0C1220;border:1px solid var(--green);transition:background .15s,transform .15s,box-shadow .2s;cursor:pointer}
.btn:hover{background:var(--green-h);transform:translateY(-2px);box-shadow:0 12px 26px rgba(31,157,58,.25)}
.btn-ghost{background:transparent;color:var(--green)}
.btn-ghost:hover{background:rgba(31,157,58,.1);box-shadow:none}
.js .rv:not(.in){opacity:0;transform:translateY(22px)}
.js .rv.in{animation:rvIn .7s cubic-bezier(.2,.7,.2,1) backwards}
.js .rv.in.d1{animation-delay:.08s}.js .rv.in.d2{animation-delay:.16s}.js .rv.in.d3{animation-delay:.24s}
@keyframes rvIn{from{opacity:0;transform:translateY(22px)}}
.js:not(.js-ok) .rv:not(.in){animation:rvFail 0s linear 2.5s forwards}
@keyframes rvFail{to{opacity:1;transform:none}}

/* nav */
nav{position:sticky;top:0;z-index:60;background:rgba(12,18,32,.74);backdrop-filter:blur(16px);border-bottom:1px solid var(--gline-soft)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:70px}
.logo{display:flex;align-items:center;gap:11px;font-family:'Sora',sans-serif;font-weight:800;font-size:1.02rem}
.logo-mark{width:33px;height:38px;flex:none;background:linear-gradient(160deg,var(--green),#6BD488);clip-path:polygon(50% 0,100% 14%,100% 62%,50% 100%,0 62%,0 14%);display:grid;place-items:center;color:#0C1220;font-size:.9rem;font-weight:800}
.logo span em{font-style:normal;color:var(--green)}
.nav-links{display:flex;gap:8px;align-items:center}
.nav-links a{font-size:.85rem;color:var(--mute);font-weight:500;padding:8px 13px;border-radius:100px;transition:color .15s,background .15s}
.nav-links a:hover{color:var(--paper)}
.nav-links a.active{color:#0C1220;background:var(--green);font-weight:600}
.nav-links .btn{padding:9px 18px;margin-left:8px}

/* hero */
.hero{padding:64px 0 30px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(2.1rem,4.6vw,3.3rem);font-weight:800;letter-spacing:-.02em;margin:14px 0 16px}
.hero h1 .accent{color:var(--green)}
.hero-ctas{display:flex;gap:14px;margin-top:26px;flex-wrap:wrap}
.hero-reviewed{font-family:'Roboto Mono',monospace;font-size:.66rem;color:var(--mute-2);letter-spacing:.1em;margin-top:20px}
.hero-reviewed b{color:var(--green)}

/* composite ring */
.cring-wrap{position:relative;width:330px;height:330px;margin:0 auto}
.cring-wrap svg{width:100%;height:100%;transform:rotate(-90deg)}
.c-bg{fill:none;stroke:rgba(255,255,255,.06);stroke-width:12}
.c-seg{fill:none;stroke-width:12;stroke-linecap:round;stroke-dasharray:0 999;transition:stroke-dasharray 1.3s cubic-bezier(.3,0,.2,1)}
.cring-center{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}
.cring-center .shieldmark{width:52px;height:60px;background:linear-gradient(160deg,var(--green),#6BD488);clip-path:polygon(50% 0,100% 14%,100% 62%,50% 100%,0 62%,0 14%);display:grid;place-items:center;color:#0C1220;font-family:'Sora',sans-serif;font-weight:900;font-size:1.2rem;margin-bottom:12px}
.cring-center .lbl{font-family:'Roboto Mono',monospace;font-size:.64rem;letter-spacing:.18em;color:var(--mute);text-transform:uppercase}
.cring-center .lbl b{color:var(--paper)}
.cring-legend{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin-top:20px}
.cring-legend span{font-family:'Roboto Mono',monospace;font-size:.6rem;color:var(--mute);letter-spacing:.06em;display:flex;align-items:center;gap:6px}
.cring-legend i{width:9px;height:9px;border-radius:2px;display:inline-block}

/* 6-50-1 band */
.stat-band{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.sb{padding:26px 22px;text-align:center}
.sb .v{font-family:'Sora',sans-serif;font-weight:900;font-size:clamp(2rem,4vw,2.8rem);color:var(--green);letter-spacing:-.02em;line-height:1}
.sb .k{font-family:'Roboto Mono',monospace;font-size:.66rem;letter-spacing:.14em;color:var(--mute);text-transform:uppercase;margin-top:8px}
.sb p{font-size:.82rem;color:var(--mute-2);margin-top:8px}

/* stages spine */
.spine{position:relative;margin-top:20px}
.spine::before{content:"";position:absolute;left:47px;top:20px;bottom:20px;width:2px;background:linear-gradient(180deg,var(--green),rgba(31,157,58,.15))}
.stage-row{display:grid;grid-template-columns:96px 1fr;gap:24px;align-items:center;padding:16px 0;position:relative}
.stage-ring{position:relative;width:96px;height:96px}
.stage-ring svg{width:100%;height:100%;transform:rotate(-90deg)}
.sr-bg{fill:none;stroke:rgba(255,255,255,.08);stroke-width:6}
.sr-val{fill:none;stroke:var(--green);stroke-width:6;stroke-linecap:round;stroke-dasharray:245;stroke-dashoffset:245;transition:stroke-dashoffset 1.1s cubic-bezier(.3,0,.2,1)}
.stage-ring .ltr{position:absolute;inset:0;display:grid;place-items:center;font-family:'Sora',sans-serif;font-weight:900;font-size:2rem;color:var(--green)}
.stage-card{padding:22px 26px}
.stage-card .top{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:6px}
.stage-card h3{font-size:1.15rem;font-weight:800}
.stage-card .ctrl{font-family:'Roboto Mono',monospace;font-size:.62rem;letter-spacing:.1em;color:var(--glow);text-transform:uppercase;border:1px solid rgba(127,219,255,.3);border-radius:100px;padding:3px 10px}
.stage-card .lead{font-size:.92rem;color:var(--paper);font-weight:600;margin-bottom:4px}
.stage-card p{font-size:.87rem;color:var(--mute)}

/* how score works */
.score-flow{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;position:relative}
.sf{padding:26px 24px;text-align:center}
.sf .n{font-family:'Roboto Mono',monospace;font-size:.64rem;letter-spacing:.14em;color:var(--mute-2)}
.sf .big{font-family:'Sora',sans-serif;font-weight:900;font-size:1.6rem;color:var(--green);margin:8px 0 6px}
.sf p{font-size:.85rem;color:var(--mute)}
.bands{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:16px}
.bnd{padding:16px 14px;border-radius:12px;text-align:center}
.bnd .r{font-family:'Roboto Mono',monospace;font-size:.62rem;letter-spacing:.08em;color:var(--mute);margin-bottom:6px}
.bnd .nm{font-family:'Sora',sans-serif;font-weight:800;font-size:.95rem}
.bnd.e{background:rgba(240,122,122,.1);border:1px solid rgba(240,122,122,.35)}.bnd.e .nm{color:var(--red)}
.bnd.d{background:rgba(31,157,58,.1);border:1px solid rgba(31,157,58,.35)}.bnd.d .nm{color:var(--green)}
.bnd.m{background:rgba(127,219,255,.09);border:1px solid rgba(127,219,255,.3)}.bnd.m .nm{color:var(--glow)}
.bnd.r{background:rgba(91,198,137,.1);border:1px solid rgba(91,198,137,.35)}.bnd.r .nm{color:var(--green)}

/* cta */
.cta{padding:46px;display:grid;grid-template-columns:1.2fr .8fr;gap:34px;align-items:center;position:relative;overflow:hidden;border-radius:20px}
.cta::after{content:"";position:absolute;right:-70px;top:-70px;width:270px;height:270px;background:var(--green);opacity:.07;clip-path:polygon(50% 0,100% 14%,100% 62%,50% 100%,0 62%,0 14%)}
.cta h2{margin-bottom:12px}
.cta-right{display:flex;flex-direction:column;gap:12px;align-items:flex-start}
.mono-note{font-family:'Roboto Mono',monospace;font-size:.7rem;color:var(--mute-2);letter-spacing:.1em}

.sec-head{margin-bottom:36px}

@media(max-width:920px){
  .hero-grid,.cta{grid-template-columns:1fr}
  .cring-wrap{width:280px;height:280px}
  .score-flow{grid-template-columns:1fr}
  .bands{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){
  .stat-band{grid-template-columns:1fr}
  .spine::before{display:none}
  .stage-row{grid-template-columns:72px 1fr;gap:16px}
  .stage-ring{width:72px;height:72px}
  .stage-ring .ltr{font-size:1.5rem}
  section{padding:52px 0}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}.js .rv:not(.in){opacity:1;transform:none}.js .rv.in{animation:none}
  .sr-val{stroke-dashoffset:0}
}

#theme-toggle{position:fixed;bottom:24px;right:24px;z-index:200;display:flex;align-items:center;gap:8px;background:var(--green);color:#0A0E1E;font-family:'Roboto Mono',monospace;font-size:.65rem;letter-spacing:.12em;text-transform:uppercase;font-weight:700;padding:10px 16px;border-radius:100px;border:2px solid transparent;cursor:pointer;box-shadow:0 4px 20px rgba(31,157,58,.4);transition:background .2s,color .2s,border-color .2s,transform .15s,box-shadow .2s}
#theme-toggle:hover{background:var(--green-h);transform:translateY(-2px);box-shadow:0 8px 28px rgba(31,157,58,.45)}
#theme-toggle .icon{font-size:.9rem;line-height:1}
html.light #theme-toggle{background:#fff;color:var(--green);border-color:var(--green);box-shadow:0 4px 20px rgba(31,157,58,.18)}
html.light #theme-toggle:hover{background:#f0fdf4;transform:translateY(-2px);box-shadow:0 8px 28px rgba(31,157,58,.28)}
html.light{--bg:#F4F6F9;--bg2:#FFFFFF;--ink:#0E1626;--dim:#475569;--faint:#5D697C;--line:rgba(14,22,38,.10);color-scheme:light}
html.light body{color:var(--ink)}
html.light{--green-l:#15803D;--teal:#0F766E;--ice:#0369A1;--bg-1:#F4F6F9;--bg-2:#FFFFFF;--glass:#FFFFFF;--gline:rgba(14,22,38,.13);--gline-soft:rgba(14,22,38,.08);--paper:#0E1626;--mute:#475569;--mute-2:#5D697C;--glow:#15803D}
html.light body{background-color:#F4F6F9!important;background-image:radial-gradient(1000px 560px at 75% -12%,#FFFFFF 0%,transparent 60%)}
html.light .g{box-shadow:0 1px 3px rgba(14,22,38,.06)}