:root{--bg:#0A0C13;--panel:#12151F;--line:rgba(255,255,255,.07);--ink:#E7E9F1;--dim:#8A91A6;--cyan:#29D8EA;--violet:#7C5CFC;--sans:'Manrope','Noto Sans Arabic',system-ui,sans-serif;--mono:'JetBrains Mono',monospace}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:80px}
body{margin:0;background:radial-gradient(circle at 12% 4%,rgba(124,92,252,.10),transparent 40%),radial-gradient(circle at 92% 60%,rgba(41,216,234,.07),transparent 45%),var(--bg);color:var(--ink);font-family:var(--sans);line-height:1.65}
a{color:inherit;text-decoration:none}a:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.container{max-width:1040px;margin:0 auto;padding:0 20px}
header.top{position:sticky;top:0;z-index:20;background:rgba(10,12,19,.85);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.top .container{display:flex;align-items:center;gap:12px 20px;min-height:64px;padding-top:10px;padding-bottom:10px;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px}
.logo i{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--cyan),var(--violet));display:flex;align-items:center;justify-content:center}
.logo svg{width:18px;height:18px;color:#fff}
.top nav{display:flex;gap:6px;margin-inline-start:auto;overflow-x:auto}
.top nav a{padding:8px 14px;border-radius:9px;color:var(--dim);font-weight:500;white-space:nowrap}
.top nav a:hover{color:var(--ink);background:rgba(255,255,255,.05)}
.top select{background:#171A26;color:var(--ink);border:1px solid var(--line);border-radius:9px;padding:8px 10px;font:inherit;font-size:14px;cursor:pointer}
@media(max-width:700px){.top nav{order:3;width:100%;margin:0}.top .container{gap:8px 10px;padding-top:12px;padding-bottom:8px}.top select{margin-inline-start:auto}}
.hero{padding-top:36px;padding-bottom:0}.hero>*{max-width:740px}
.hero h1{font-size:clamp(30px,5vw,48px);line-height:1.15;margin:0 0 18px;font-weight:800;letter-spacing:-.5px}
.hero p{color:var(--dim);font-size:18px;margin:0}
section{padding:48px 0}
section>.container>h2{font-size:28px;margin:0 0 24px;font-weight:700}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:22px}
.card h3{margin:0 0 8px;font-size:17px}.card p{margin:0;color:var(--dim);font-size:15px}
details{background:var(--panel);border:1px solid var(--line);border-radius:12px;margin-bottom:10px;padding:0 20px}
summary{cursor:pointer;padding:16px 0;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:12px}
summary::-webkit-details-marker{display:none}
summary::after{content:'+';color:var(--cyan);font-size:24px;line-height:1;flex:none;transition:transform .3s cubic-bezier(.2,.8,.2,1)}
details{transition:border-color .3s ease,background-color .3s ease}
details:hover{border-color:rgba(41,216,234,.25)}
details.is-open{border-color:rgba(41,216,234,.4);background:#141826}
details.is-open summary::after{transform:rotate(45deg)}
details p{margin:0 0 16px;color:var(--dim)}
.doc{max-width:760px;margin:0 auto;padding:60px 20px;min-height:55vh}
.doc h1{font-size:34px;margin:0 0 24px}.doc p{color:#BFC4D4;font-size:17px}
footer.bot{border-top:1px solid var(--line);margin-top:40px;padding:36px 0 28px;text-align:center}
.flinks{display:flex;flex-wrap:wrap;gap:8px 22px;justify-content:center;margin-bottom:26px}
.flinks a{color:var(--dim);font-size:14px}.flinks a:hover{color:var(--cyan)}
.follow{font-size:14px;color:var(--dim);margin-bottom:12px}
.social{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:24px}
.social a{width:42px;height:42px;border-radius:11px;background:#171A26;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--ink);transition:.15s}
.social a:hover{color:#0A0C13;background:var(--cyan);border-color:var(--cyan)}
.social svg{width:20px;height:20px;fill:currentColor}
.copy{font-size:13px;color:var(--dim)}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* ---- tool ---- */
.tool{--field:#0B0D14;--ink-faint:#4B5163;--danger:#FF6B6B}
.tool button{-webkit-tap-highlight-color:transparent}.tool button:focus{outline:none}.tool button:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:18px;display:grid;grid-template-columns:1fr 1fr;overflow:hidden;box-shadow:0 24px 60px -32px rgba(0,0,0,.6)}
@media(max-width:620px){.panel{grid-template-columns:1fr}.col-left{border-inline-end:none!important;border-bottom:1px solid var(--line)}}
.col{padding:32px 30px}.col-left{border-inline-end:1px solid var(--line)}
.col-label{font-family:var(--mono);font-size:13px;font-weight:600;letter-spacing:1.2px;color:var(--cyan);display:flex;align-items:center;gap:7px;margin-bottom:16px}
.col-label svg{width:14px;height:14px}
.label-row{display:flex;align-items:center;justify-content:space-between}
.code-row{display:flex;align-items:stretch;gap:12px;margin:14px 0 18px}
.refresh-pill{flex:0 0 auto;width:56px;height:56px;padding:0!important;flex:none!important;display:flex;align-items:center;justify-content:center}
.refresh-pill svg{width:20px;height:20px}.refresh-pill.spinning svg{animation:spin360 .6s ease-out}
@keyframes spin360{to{transform:rotate(360deg)}}
.timer-pill{font-family:var(--mono);font-size:14px;font-weight:600;background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:20px;padding:5px 13px;display:flex;align-items:center;gap:7px;transition:color .9s linear,background-color .9s linear,border-color .9s linear}
.timer-pill .dot{width:7px;height:7px;border-radius:50%;background:currentColor}
textarea.key-input{width:100%;height:120px;resize:none;background:var(--field);border:1px solid var(--line);border-radius:12px;padding:16px 44px 16px 16px;color:var(--ink);font-family:var(--mono);font-size:16px;letter-spacing:.6px;outline:none;transition:border-color .15s,box-shadow .15s;direction:ltr;text-align:left}
textarea.key-input::placeholder{color:var(--ink-faint)}
textarea.key-input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(41,216,234,.12)}
textarea.key-input.invalid{border-color:var(--danger)}
.key-input-wrap{position:relative}
.clear-key-btn{position:absolute;top:10px;right:10px;width:26px;height:26px;display:none;align-items:center;justify-content:center;border:none;border-radius:7px;background:rgba(255,255,255,.06);color:var(--dim);cursor:pointer;padding:0;transition:.15s}
.clear-key-btn svg{width:14px;height:14px}.clear-key-btn:hover{background:rgba(255,107,107,.15);color:var(--danger)}
.key-input-wrap.has-value .clear-key-btn{display:flex}
.action-row{display:flex;gap:12px;margin-top:14px}
.btn-secondary{flex:1;display:flex;align-items:center;justify-content:center;gap:9px;padding:14px 12px;border-radius:12px;background:#171A26;border:1px solid var(--line);color:var(--ink);font-family:var(--sans);font-weight:500;font-size:16px;cursor:pointer;transition:.15s}
.btn-secondary:hover{border-color:rgba(41,216,234,.4);background:#1B1F2D}.btn-secondary svg{width:18px;height:18px;flex-shrink:0}
.seg-bar{position:relative;height:20px;border-radius:4px;overflow:hidden;margin-bottom:24px;background:#1B1E2A;direction:ltr}
.seg-fill{position:absolute;inset:0;background:linear-gradient(90deg,hsl(210,85%,60%) 0%,hsl(255,78%,64%) 35%,hsl(32,90%,58%) 70%,hsl(0,72%,32%) 100%)}
.seg-glow{position:absolute;inset:0;z-index:1;pointer-events:none;mix-blend-mode:screen;background:repeating-linear-gradient(100deg,transparent 0%,transparent 6%,rgba(255,255,255,.55) 8%,transparent 10%,transparent 22%);background-size:220% 100%;animation:shimmer 2.6s linear infinite,glowPulse 1.1s ease-in-out infinite}
@keyframes shimmer{to{background-position:-220% 0}}
@keyframes glowPulse{0%,100%{opacity:.7}45%{opacity:1}55%{opacity:.5}}
.seg-cover{position:absolute;top:0;right:0;bottom:0;width:100%;z-index:2;background:#1B1E2A}
.seg-ticks{position:absolute;inset:0;pointer-events:none;z-index:3;background-image:repeating-linear-gradient(90deg,transparent 0,transparent calc(100%/30 - 2px),var(--panel) calc(100%/30 - 2px),var(--panel) calc(100%/30))}
.seg-head{position:absolute;top:50%;left:0;width:7px;height:32px;border-radius:3px;background:#F2FBFF;transform:translate(-50%,-50%);z-index:4;pointer-events:none;box-shadow:0 0 6px 2px rgba(255,255,255,.9),0 0 16px 6px var(--head-glow,rgba(41,216,234,.85)),0 0 30px 12px var(--head-glow,rgba(41,216,234,.5));animation:flicker .9s ease-in-out infinite}
@keyframes flicker{0%,100%{opacity:1}50%{opacity:.55}}
.code-box{flex:1;min-width:0;background:var(--field);border:1px solid var(--line);border-radius:12px;height:56px;display:flex;align-items:center;justify-content:center;direction:ltr}
.otp{font-family:var(--mono);font-size:24px;font-weight:600;letter-spacing:4px}.otp.placeholder{color:var(--ink-faint);letter-spacing:5px}
.btn-primary{width:100%;padding:17px;border:none;border-radius:12px;background:linear-gradient(90deg,var(--cyan),var(--violet));color:#0A0C13;font-family:var(--sans);font-weight:700;font-size:16px;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:10px;transition:filter .15s,transform .1s}
.btn-primary:hover{filter:brightness(1.08)}.btn-primary:active{transform:scale(.99)}
.btn-primary:disabled{background:#23273a;color:var(--ink-faint);cursor:not-allowed;filter:none}.btn-primary svg{width:18px;height:18px}
.scan-overlay{position:fixed;inset:0;background:rgba(5,6,10,.88);display:none;align-items:center;justify-content:center;z-index:50;padding:20px}.scan-overlay.show{display:flex}
.scan-card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:18px;max-width:360px;width:100%}
.scan-card video{width:100%;border-radius:10px;background:#000}
.scan-status{font-family:var(--mono);font-size:12px;color:var(--dim);text-align:center;margin:12px 0}
.scan-close{width:100%;padding:10px;border-radius:9px;background:#171A26;border:1px solid var(--line);color:var(--ink);font-family:var(--sans);font-size:14px;cursor:pointer}
.toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%) translateY(10px);background:#171A26;border:1px solid var(--line);color:var(--ink);padding:10px 18px;border-radius:10px;font-size:14px;opacity:0;pointer-events:none;transition:.25s;z-index:60}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ---- guide ---- */
.btn{display:inline-block;background:linear-gradient(90deg,var(--cyan),var(--violet));color:#0A0C13;font-weight:700;padding:14px 26px;border-radius:12px}.btn:hover{filter:brightness(1.08)}
.guide{padding:56px 20px 20px}.guide h1{font-size:clamp(28px,4.5vw,40px);margin:0 0 12px;font-weight:800}.guide .lead{color:var(--dim);font-size:18px;margin:0 0 36px;max-width:680px}.guide h2{font-size:24px;margin:0 0 18px}
.video{position:relative;aspect-ratio:16/9;max-width:820px;background:var(--panel);border:1px dashed rgba(255,255,255,.18);border-radius:16px;overflow:hidden;display:flex;align-items:center;justify-content:center;color:var(--dim);margin-bottom:44px}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}.video svg{width:54px;height:54px;fill:var(--cyan);opacity:.8;display:block;margin:0 auto 10px}.video div{text-align:center}
ol.steps{list-style:none;counter-reset:s;padding:0;margin:0 0 36px;display:grid;gap:14px;max-width:820px}
ol.steps li{counter-increment:s;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px 20px 18px 66px;position:relative}
ol.steps li::before{content:counter(s);position:absolute;inset-inline-start:18px;top:18px;width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--cyan),var(--violet));color:#0A0C13;font-weight:800;display:flex;align-items:center;justify-content:center}
[dir=rtl] ol.steps li{padding:18px 66px 18px 20px}
ol.steps h3{margin:0 0 4px;font-size:17px}ol.steps p{margin:0;color:var(--dim)}

/* ---- 404 ---- */
.nf{max-width:640px;margin:0 auto;padding:90px 20px 60px;text-align:center;min-height:60vh}
.nf .code{font-size:clamp(90px,22vw,160px);font-weight:800;line-height:1;letter-spacing:-4px;background:linear-gradient(135deg,var(--cyan),var(--violet));-webkit-background-clip:text;background-clip:text;color:transparent;margin:0 0 8px}
.nf h1{font-size:clamp(24px,5vw,32px);margin:0 0 12px}.nf p{color:var(--dim);font-size:17px;margin:0 0 28px}

/* ---- QR scan animation ---- */
.scan-frame{position:relative;aspect-ratio:1/1;border-radius:14px;overflow:hidden;background:#000;box-shadow:0 0 0 1px rgba(57,255,160,.4),0 0 26px rgba(41,216,234,.28)}
.scan-card .scan-frame video{width:100%;height:100%;object-fit:cover;border-radius:0;display:block}
.scan-frame .c{position:absolute;width:34px;height:34px;border:3px solid #39FFA0;filter:drop-shadow(0 0 6px #39FFA0);pointer-events:none}
.scan-frame .tl{top:10px;left:10px;border-right:0;border-bottom:0;border-top-left-radius:10px}
.scan-frame .tr{top:10px;right:10px;border-left:0;border-bottom:0;border-top-right-radius:10px;border-color:#3D8BFF;filter:drop-shadow(0 0 6px #3D8BFF)}
.scan-frame .bl{bottom:10px;left:10px;border-right:0;border-top:0;border-bottom-left-radius:10px;border-color:#3D8BFF;filter:drop-shadow(0 0 6px #3D8BFF)}
.scan-frame .br{bottom:10px;right:10px;border-left:0;border-top:0;border-bottom-right-radius:10px}
.scan-line{position:absolute;left:8%;right:8%;top:8%;height:3px;border-radius:3px;pointer-events:none;background:linear-gradient(90deg,transparent,#39FFA0 25%,#29D8EA 55%,#3D8BFF 80%,transparent);box-shadow:0 0 12px 3px rgba(57,255,160,.7),0 0 28px 8px rgba(61,139,255,.5);animation:scanMove 2.2s ease-in-out infinite alternate}
@keyframes scanMove{from{top:8%}to{top:calc(92% - 3px)}}
@media(prefers-reduced-motion:reduce){.scan-line{animation:none;top:50%}}

/* ---- errors ---- */
[hidden]{display:none!important}
.key-error{margin-top:10px;padding:9px 12px;border-radius:10px;font-size:13.5px;line-height:1.45;color:#FFB4B4;background:rgba(255,107,107,.1);border:1px solid rgba(255,107,107,.3)}
.scan-status.err{color:#FFB4B4;background:rgba(255,107,107,.1);border:1px solid rgba(255,107,107,.3);border-radius:10px;padding:10px 12px;font-family:var(--sans);font-size:13.5px;line-height:1.45}
.scan-frame.bad{box-shadow:0 0 0 2px #FF6B6B,0 0 26px rgba(255,107,107,.4)}
.scan-frame.bad .scan-line{opacity:.25}
.scan-error{text-align:center;padding:18px 6px 6px}
.scan-error svg{width:54px;height:54px;color:#FF8A8A;margin-bottom:10px}
.scan-error h3{margin:0 0 8px;font-size:18px}.scan-error p{margin:0 0 10px;color:var(--dim);font-size:14.5px;line-height:1.55}
.scan-error .hint{font-size:13px;background:rgba(255,255,255,.05);border-radius:10px;padding:10px 12px}
.btn-retry{margin:6px 0 14px;padding:12px 22px;border:none;border-radius:11px;background:linear-gradient(90deg,var(--cyan),var(--violet));color:#0A0C13;font-family:var(--sans);font-weight:700;font-size:15px;cursor:pointer}

.doc h2{font-size:20px;margin:34px 0 10px}.doc .meta{color:var(--dim);font-size:14px;margin:32px 0 0}

/* ---- ad system ---- */
.ads-wrap{padding-top:10px;padding-bottom:10px}
.ad{display:none;margin:0 auto;text-align:center;overflow:hidden}
.ad-m{display:block}
@media(min-width:768px){.ad-m{display:none}.ad-d{display:block}}
.ad-side{display:none;position:fixed;top:90px;width:160px;z-index:5}
@media(min-width:1480px){.ad-side{display:block}.ad-left{right:calc(50% + 540px)}.ad-right{left:calc(50% + 540px)}}
.ads-debug .ad{outline:2px dashed rgba(41,216,234,.7);background:rgba(41,216,234,.06)}
.ads-debug .ad::before{content:attr(data-label);display:block;padding:8px;font:600 12px 'JetBrains Mono',monospace;color:#29D8EA;word-break:break-word}

/* ---- reload button: neon ring while recalculating ---- */
.refresh-pill .mini-ring{display:none;width:24px;height:24px;border-radius:50%;border:3px solid rgba(255,255,255,.1);border-top-color:#39FFA0;border-right-color:#3D8BFF;box-shadow:0 0 10px rgba(57,255,160,.55);animation:plspin .7s linear infinite}
.refresh-pill.busy svg{display:none}.refresh-pill.busy .mini-ring{display:block}
@keyframes plspin{to{transform:rotate(360deg)}}

.ads-top{padding-top:28px}