/* RC Methods — User Portal (Red + Black) */
*,::before,::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --bg:#0a0a0c;--bg2:#111114;
  --card:rgba(24,24,27,.92);--card-2:#1a1a1d;
  --border:#27272a;--border2:#3f3f46;
  --text:#fafafa;--muted:#a1a1aa;--faint:#71717a;

  --red:#dc2626;--red-2:#b91c1c;--red-3:#ef4444;--red-4:#f87171;
  --red-900:#7f1d1d;--red-800:#991b1b;
  --red-glow:rgba(220,38,38,.35);
  --red-glow-2:rgba(220,38,38,.15);

  --success:#22c55e;--success-bg:rgba(34,197,94,.1);--success-bd:rgba(34,197,94,.3);
  --danger:#ef4444;--danger-bg:rgba(239,68,68,.1);--danger-bd:rgba(239,68,68,.35);
  --warn:#f59e0b;--warn-bg:rgba(245,158,11,.1);

  --r:14px;--r-lg:20px;--r-pill:999px;
  --font:system-ui,-apple-system,"Segoe UI",Inter,sans-serif;
  --shadow:0 16px 48px rgba(0,0,0,.5);
  --shadow-lg:0 24px 64px rgba(0,0,0,.6);
  --shadow-glow:0 0 0 3px var(--red-glow);
  --transition:.22s cubic-bezier(.4,0,.2,1);
  --safe-top:env(safe-area-inset-top,0px);
  --safe-bot:env(safe-area-inset-bottom,0px);
  --safe-x:env(safe-area-inset-left,0px);
}

html{min-height:100%;-webkit-text-size-adjust:100%}
html,body{min-height:100%}
body{
  background:var(--bg);color:var(--text);font-family:var(--font);font-size:15px;
  -webkit-font-smoothing:antialiased;
  padding:calc(16px + var(--safe-top)) max(12px, var(--safe-x)) calc(32px + var(--safe-bot));
  overflow-x:hidden;line-height:1.5;position:relative;
}
body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(circle 500px at 15% 10%,rgba(220,38,38,.15),transparent 60%),
    radial-gradient(circle 450px at 85% 90%,rgba(127,29,29,.12),transparent 60%)}
body::after{content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:
    linear-gradient(rgba(220,38,38,.025) 1px,transparent 1px),
    linear-gradient(90deg,rgba(220,38,38,.025) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 40%,#000 20%,transparent 80%);
  -webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 40%,#000 20%,transparent 80%)}

.wrap{position:relative;z-index:1;width:100%;max-width:560px;margin:0 auto}

.header{text-align:center;margin-bottom:22px;animation:fadeUp .5s ease}
.logo-wrap{
  display:inline-flex;align-items:center;justify-content:center;
  width:72px;height:72px;border-radius:20px;overflow:hidden;
  background:linear-gradient(135deg,var(--red-800),var(--red-900));
  box-shadow:0 12px 32px rgba(220,38,38,.4),inset 0 1px 0 rgba(255,255,255,.1);
  margin-bottom:14px;position:relative
}
.logo-wrap::before{content:"";position:absolute;inset:-4px;border-radius:24px;
  background:linear-gradient(135deg,var(--red-3),transparent);
  opacity:.4;filter:blur(12px);z-index:-1}
.logo-wrap img{width:100%;height:100%;object-fit:cover;display:block;border-radius:inherit}
.header h1{
  font-size:clamp(20px,5vw,26px);font-weight:800;letter-spacing:-.03em;line-height:1.2;
  background:linear-gradient(135deg,#fff 30%,var(--red-4) 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.header p{font-size:13px;color:var(--muted);margin-top:4px;font-weight:500}

.tabs{
  display:flex;gap:4px;margin-bottom:18px;background:var(--card);
  padding:5px;border-radius:var(--r-pill);border:1px solid var(--border);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none
}
.tabs::-webkit-scrollbar{display:none}
.tab{
  flex:1 0 auto;min-width:0;padding:10px 10px;border:none;border-radius:var(--r-pill);
  background:transparent;color:var(--muted);font-weight:700;font-size:12px;
  cursor:pointer;transition:var(--transition);white-space:nowrap;font-family:inherit
}
.tab.active{
  background:linear-gradient(135deg,var(--red),var(--red-800));
  color:#fff;box-shadow:0 4px 16px var(--red-glow)
}
.tab-panel{display:none;animation:fadeUp .4s ease}
.tab-panel.active{display:block}

.card{
  background:var(--card);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border:1px solid var(--border);border-radius:var(--r-lg);
  padding:22px 18px;box-shadow:var(--shadow);margin-bottom:16px;position:relative;overflow:hidden
}
.card::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(220,38,38,.35),transparent);pointer-events:none}
.card h2{font-size:clamp(16px,4.5vw,18px);font-weight:800;margin-bottom:6px;letter-spacing:-.02em;color:var(--text)}
.card>p{color:var(--muted);font-size:13px;margin-bottom:18px;line-height:1.55}

.download-card{
  background:linear-gradient(145deg,var(--card),rgba(127,29,29,.08));
  border:1px solid rgba(220,38,38,.25);position:relative;overflow:hidden
}
.download-card::before{content:"";position:absolute;top:-40px;right:-40px;width:140px;height:140px;
  background:radial-gradient(circle,rgba(220,38,38,.18),transparent 70%);pointer-events:none}
.download-badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-pill);
  background:rgba(220,38,38,.12);border:1px solid rgba(220,38,38,.25);color:var(--red-4);
  font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;margin-bottom:12px}
.version-display{font-size:clamp(24px,7vw,32px);font-weight:800;color:var(--red-3);letter-spacing:-.03em;margin:8px 0 4px}
.version-meta{font-size:12px;color:var(--muted);margin-bottom:16px}
.release-notes{background:var(--bg2);border:1px solid var(--border);border-radius:12px;padding:14px 16px;
  font-size:13px;color:var(--muted);line-height:1.55;margin-bottom:18px;white-space:pre-wrap;word-break:break-word}

.btn-dl,.btn-buy{
  display:flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:14px;
  background:linear-gradient(135deg,var(--red),var(--red-800));color:#fff;
  border:none;border-radius:12px;font-weight:800;font-size:15px;cursor:pointer;
  text-decoration:none;transition:transform .12s,box-shadow .2s,filter .15s;
  box-shadow:0 6px 20px var(--red-glow);-webkit-tap-highlight-color:transparent
}
.btn-dl:hover,.btn-buy:hover{transform:translateY(-2px);box-shadow:0 10px 28px var(--red-glow);filter:brightness(1.08)}
.btn-dl:active,.btn-buy:active{transform:scale(.99)}
.dl-hint{font-size:11px;color:var(--faint);text-align:center;margin-top:12px;line-height:1.45}

.platform-picker{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:16px 0 10px}
.platform-opt{
  display:flex;flex-direction:column;align-items:center;gap:4px;padding:14px 10px;
  background:var(--card-2);border:1.5px solid var(--border);border-radius:14px;cursor:pointer;
  transition:border-color .2s,box-shadow .2s,background .2s,transform .15s;
  font-family:inherit;text-align:center;color:var(--muted)
}
.platform-opt:hover{border-color:var(--red-800);color:var(--text);transform:translateY(-1px)}
.platform-opt.active{
  border-color:var(--red);color:var(--text);
  background:linear-gradient(160deg,var(--card-2),rgba(127,29,29,.15));
  box-shadow:0 6px 20px var(--red-glow-2)
}
.platform-icon{font-size:22px;line-height:1}
.platform-name{font-size:13px;font-weight:800;color:inherit}
.platform-fmt{font-size:11px;color:var(--faint);font-weight:600}
.platform-meta{font-size:12px;color:var(--muted);margin-bottom:14px;text-align:center}
.install-steps{margin:14px 0 0;padding-left:20px;color:var(--muted);font-size:12px;line-height:1.6}
.install-steps li{margin-bottom:6px}
.install-steps li::marker{color:var(--red-3);font-weight:700}

/* Plans */
.plans-grid{display:grid;grid-template-columns:1fr;gap:12px;margin-top:4px}
.plan-card{
  position:relative;background:var(--card-2);border:1.5px solid var(--border);
  border-radius:16px;padding:18px 16px;transition:var(--transition);
  display:flex;flex-direction:column;gap:6px
}
.plan-card:hover{border-color:var(--red-800);box-shadow:0 8px 24px var(--red-glow-2);transform:translateY(-2px)}
.plan-card.featured{
  border-color:var(--red);
  background:linear-gradient(160deg,var(--card-2),rgba(127,29,29,.15));
  box-shadow:0 10px 28px var(--red-glow-2)
}
.plan-pop{
  position:absolute;top:-10px;right:14px;padding:4px 10px;border-radius:var(--r-pill);
  background:linear-gradient(135deg,var(--red),var(--red-800));color:#fff;
  font-size:10px;font-weight:800;letter-spacing:.04em;text-transform:uppercase;
  box-shadow:0 4px 12px var(--red-glow)
}
.plan-name{font-size:15px;font-weight:800;color:var(--text)}
.plan-price{font-size:28px;font-weight:800;color:var(--red-3);letter-spacing:-.03em;line-height:1.1}
.plan-price span{font-size:13px;font-weight:600;color:var(--muted);margin-left:4px}
.plan-desc{font-size:12px;color:var(--muted);margin:8px 0 14px;line-height:1.45;flex:1}
.plan-card .btn-buy{padding:12px;font-size:14px;margin-top:6px}
.plans-note{font-size:12px;color:var(--faint);text-align:center;margin-top:14px;line-height:1.5}
.plans-note a{color:var(--red-4);font-weight:700;text-decoration:none}
.plans-note a:hover{text-decoration:underline}

.field{margin-bottom:16px}
.field label{display:block;font-size:11px;font-weight:700;color:var(--muted);
  text-transform:uppercase;letter-spacing:.06em;margin-bottom:6px}
.field input,.field textarea{
  width:100%;background:var(--bg2);border:1.5px solid var(--border);
  border-radius:12px;padding:12px 14px;color:var(--text);outline:none;font-size:16px;
  transition:border-color .2s,box-shadow .2s,background .2s;font-family:inherit
}
.field input::placeholder,.field textarea::placeholder{color:var(--border2)}
.field input:focus,.field textarea:focus{
  border-color:var(--red);box-shadow:var(--shadow-glow);background:#131316
}
.field .hint{font-size:12px;color:var(--faint);margin-top:6px;line-height:1.45}
.field .hint a{color:var(--red-4);font-weight:600;text-decoration:none}
.field .hint a:hover{text-decoration:underline}
.field .hint strong{color:var(--muted);font-weight:700}
.ip-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.ip-row input{flex:1;min-width:0}
.ip-readonly{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px;
  background:var(--bg2)!important;color:var(--muted)}
.ip-badge{background:rgba(220,38,38,.12);color:var(--red-4);border:1px solid rgba(220,38,38,.25);
  border-radius:8px;padding:4px 10px;font-size:11px;font-weight:700;white-space:nowrap}

.btn{
  width:100%;padding:13px;background:linear-gradient(135deg,var(--red),var(--red-800));color:#fff;
  border:none;border-radius:12px;font-weight:800;font-size:15px;cursor:pointer;
  transition:transform .12s,box-shadow .2s,filter .15s;margin-top:8px;
  box-shadow:0 6px 20px var(--red-glow);-webkit-tap-highlight-color:transparent;
  font-family:inherit
}
.btn:hover{transform:translateY(-1px);box-shadow:0 10px 28px var(--red-glow);filter:brightness(1.08)}
.btn:active{transform:scale(.99)}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;filter:none}

.result{border-radius:12px;padding:16px 18px;margin-bottom:20px;font-size:14px;animation:fadeUp .35s ease}
.result.ok{background:var(--success-bg);border:1.5px solid var(--success-bd);color:#86efac}
.result.err{background:var(--danger-bg);border:1.5px solid var(--danger-bd);color:#fca5a5}
.result .res-title{font-weight:800;font-size:15px;margin-bottom:6px}
.result .res-exp{font-size:13px;opacity:.9;margin-top:4px}
.result .res-exp strong{color:#fff}

.divider{border:none;border-top:1px solid var(--border);margin:22px 0}
.footer{text-align:center;margin-top:20px;font-size:12px;color:var(--faint);padding-bottom:8px}
.footer a{color:var(--red-4);font-weight:600;text-decoration:none}
.footer a:hover{text-decoration:underline}

.dl-unlock-form{margin-top:8px}
.dl-unlock-form .field{margin-bottom:14px}
.dl-unlock-form label{display:block;font-size:12px;font-weight:700;color:var(--muted);margin-bottom:6px}
.dl-unlock-form input[type=text]{
  width:100%;padding:12px 14px;border:1.5px solid var(--border);border-radius:12px;
  background:var(--bg2);color:var(--text);font-size:14px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace
}
.dl-unlock-form input[type=text]:focus{border-color:var(--red);box-shadow:var(--shadow-glow);outline:none}
.dl-unlock-form .btn{
  width:100%;padding:13px;border:none;border-radius:12px;cursor:pointer;
  background:linear-gradient(135deg,var(--red),var(--red-800));color:#fff;
  font-weight:800;font-size:15px
}
.dl-unlock-form .hint{font-size:12px;color:var(--faint);margin-top:6px;line-height:1.45}
.dl-unlock-form .hint strong{color:var(--muted)}

@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}

@media(min-width:520px){
  .plans-grid{grid-template-columns:1fr 1fr}
  .plan-card.featured{grid-column:1 / -1}
  .card{padding:28px}
  .tab{font-size:13px;padding:10px 12px}
}
@media(max-width:380px){
  .tab{font-size:11px;padding:9px 8px}
  .plan-price{font-size:24px}
}

::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--border2);border-radius:4px}
::-webkit-scrollbar-thumb:hover{background:var(--red-800)}
::selection{background:var(--red-800);color:#fff}