*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}

:root{
    --bg:#070b0e;--bg2:#0c1318;--card:rgba(255,255,255,0.028);
    --accent:#00e0a4;--accent-d:#00b585;--accent-g:rgba(0,224,164,0.25);
    --txt:#eef3f1;--txt2:#7e8c89;--txt3:#46524f;
    --border:rgba(255,255,255,0.06);--border2:rgba(255,255,255,0.12);
    --red:#ff6b6b;--amber:#ffb454;
}

body{font-family:'Inter',sans-serif;background:var(--bg);color:var(--txt);min-height:100vh;min-height:100dvh;overflow-x:hidden;line-height:1.5}
body::-webkit-scrollbar{width:7px}
body::-webkit-scrollbar-thumb{background:var(--border2);border-radius:4px}

.glow{position:fixed;inset:0;pointer-events:none;z-index:0;
    background:radial-gradient(ellipse 70% 50% at 50% -10%,rgba(0,224,164,0.10),transparent)}

.wrap{max-width:680px;margin:0 auto;padding:clamp(24px,5vw,44px) clamp(16px,4vw,22px);position:relative;z-index:1}

/* Brand */
.brand{display:flex;flex-direction:column;align-items:center;text-align:center;margin-bottom:clamp(22px,4vw,34px)}
.brand-mark{width:46px;height:46px;display:flex;align-items:center;justify-content:center;background:rgba(0,224,164,0.1);border:1px solid var(--accent-g);border-radius:13px;color:var(--accent);margin-bottom:12px}
.brand-mark svg{width:24px;height:24px}
.brand-text{font-size:18px;font-weight:700;letter-spacing:.5px}
.brand-text b{color:var(--accent)}
.brand-tag{font-size:10px;letter-spacing:2.5px;text-transform:uppercase;color:var(--txt3);margin-top:5px;font-weight:600}

/* Card */
.card{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:clamp(20px,4vw,32px);backdrop-filter:blur(40px)}
.card h1{font-size:clamp(20px,4vw,26px);font-weight:800;letter-spacing:-.5px;margin-bottom:8px}
.card .sub{font-size:13px;color:var(--txt2);margin-bottom:22px;line-height:1.65}
.card .sub b{color:var(--txt)}

/* Secret input */
.secret-input{width:100%;min-height:150px;background:var(--bg2);border:1px solid var(--border);border-radius:13px;color:var(--txt);font-family:'JetBrains Mono',monospace;font-size:13.5px;line-height:1.6;padding:14px 16px;resize:vertical;transition:border-color .2s,box-shadow .2s}
.secret-input::placeholder{color:var(--txt3);font-family:'Inter',sans-serif}
.secret-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-g)}
.char-row{font-size:11px;color:var(--txt3);margin:8px 2px 0;font-family:'JetBrains Mono',monospace}

/* Options */
.options{display:flex;gap:14px;margin:20px 0}
.opt{flex:1;display:flex;flex-direction:column;gap:7px}
.opt label{font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:1.5px;color:var(--txt3)}
.select{height:44px;background:var(--bg2);border:1px solid var(--border);border-radius:11px;color:var(--txt);font-family:'Inter',sans-serif;font-size:13px;font-weight:500;padding:0 14px;cursor:pointer;appearance:none;-webkit-appearance:none;transition:border-color .2s,box-shadow .2s;
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2346524f' viewBox='0 0 16 16'%3E%3Cpath d='M4 6l4 4 4-4'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 13px center;padding-right:34px}
.select option{background:#0c1318;color:var(--txt)}
.select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-g)}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:12px;font-family:'Inter',sans-serif;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s;white-space:nowrap}
.btn svg{width:17px;height:17px}
.btn-primary{width:100%;padding:14px;background:var(--accent);color:#03110c;box-shadow:0 8px 26px rgba(0,224,164,.22)}
.btn-primary:hover{background:#16ecb1;transform:translateY(-1px);box-shadow:0 12px 32px rgba(0,224,164,.3)}
.btn-primary:active{transform:translateY(0)}
.btn-primary:disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}
.btn-copy{padding:0 18px;background:rgba(0,224,164,0.12);color:var(--accent);border:1px solid var(--accent-g);flex-shrink:0}
.btn-copy:hover{background:rgba(0,224,164,0.2)}
.btn-copy.done{background:var(--accent);color:#03110c}
.btn-ghost{width:100%;padding:12px;background:transparent;border:1px solid var(--border2);color:var(--txt2);margin-top:14px}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-reveal{width:100%;padding:15px;background:var(--accent);color:#03110c;box-shadow:0 8px 26px rgba(0,224,164,.22)}
.btn-reveal:hover{background:#16ecb1;transform:translateY(-1px)}

/* Result */
.result{margin-top:6px}
.result-success{display:flex;align-items:center;gap:13px;background:rgba(0,224,164,0.08);border:1px solid var(--accent-g);border-radius:14px;padding:15px 16px;margin-bottom:18px}
.rs-check{width:36px;height:36px;flex-shrink:0;display:flex;align-items:center;justify-content:center;background:var(--accent);color:#03110c;border-radius:50%}
.rs-check svg{width:20px;height:20px}
.rs-text strong{display:block;font-size:14.5px;font-weight:700;color:var(--txt)}
.rs-text span{display:block;font-size:12px;color:var(--txt2);margin-top:2px;line-height:1.5}
.link-row{display:flex;gap:10px}
.link-out{flex:1;min-width:0;height:46px;background:var(--bg2);border:1px solid var(--accent-g);border-radius:11px;color:var(--txt);font-family:'JetBrains Mono',monospace;font-size:12.5px;padding:0 14px}
.link-out:focus{outline:none;border-color:var(--accent)}
.result-info{font-size:12px;color:var(--txt2);margin-top:14px;line-height:1.7;display:flex;flex-direction:column;gap:4px}
.result-info .pill{display:inline-flex;align-items:center;gap:6px}
.result-info .pill svg{width:14px;height:14px;color:var(--accent);flex-shrink:0}
.warn{color:var(--amber)!important}

/* Share tabs (Link / QR) */
.share-tabs{display:flex;gap:6px;margin-bottom:12px;background:var(--bg2);border:1px solid var(--border);border-radius:11px;padding:4px}
.share-tab{flex:1;padding:9px;background:transparent;border:none;border-radius:8px;color:var(--txt2);font-family:'Inter',sans-serif;font-size:12.5px;font-weight:600;cursor:pointer;transition:all .18s}
.share-tab.on{background:rgba(0,224,164,0.14);color:var(--accent)}
.share-tab:not(.on):hover{color:var(--txt)}
.share-panel{animation:fade .2s ease}
@keyframes fade{from{opacity:0}to{opacity:1}}
.qr-box{display:flex;justify-content:center;padding:18px;background:#fff;border-radius:13px;margin-bottom:12px}
.qr-box canvas{display:block;width:240px;height:240px;image-rendering:pixelated;image-rendering:crisp-edges}
.qr-hint{font-size:11.5px;color:var(--txt2);text-align:center;margin-bottom:12px;line-height:1.6}

/* Recipient view */
.view-lock{text-align:center;padding:10px 0 4px}
.view-lock-icon{width:60px;height:60px;margin:0 auto 18px;display:flex;align-items:center;justify-content:center;background:rgba(0,224,164,0.1);border:1px solid var(--accent-g);border-radius:18px;color:var(--accent)}
.view-lock-icon svg{width:30px;height:30px}
.view-lock h1{font-size:clamp(19px,4vw,24px);font-weight:800;margin-bottom:8px}
.view-lock p{font-size:13px;color:var(--txt2);max-width:420px;margin:0 auto 22px;line-height:1.65}
.meta-pills{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:22px}
.meta-pill{font-size:11.5px;font-weight:600;color:var(--txt2);background:var(--bg2);border:1px solid var(--border);border-radius:20px;padding:7px 14px;display:inline-flex;align-items:center;gap:7px}
.meta-pill svg{width:14px;height:14px;color:var(--accent)}

.secret-reveal{background:#05100c;border:1px solid var(--accent-g);border-radius:13px;padding:16px;font-family:'JetBrains Mono',monospace;font-size:14px;line-height:1.7;color:var(--txt);white-space:pre-wrap;word-break:break-word;max-height:420px;overflow:auto;margin-bottom:14px}
.secret-reveal::-webkit-scrollbar{width:6px}
.secret-reveal::-webkit-scrollbar-thumb{background:var(--border2);border-radius:3px}
.destroyed-banner{display:flex;align-items:center;gap:10px;background:rgba(255,107,107,0.08);border:1px solid rgba(255,107,107,0.3);border-radius:11px;padding:13px 16px;font-size:13px;color:#ffb3b3;font-weight:500;margin-bottom:8px}
.destroyed-banner.live{background:rgba(255,180,84,0.08);border-color:rgba(255,180,84,0.3);color:#ffd9a8}
.destroyed-banner svg{width:18px;height:18px;flex-shrink:0}
.gone{text-align:center;padding:14px 0}
.gone-icon{width:60px;height:60px;margin:0 auto 18px;display:flex;align-items:center;justify-content:center;background:rgba(255,107,107,0.08);border:1px solid rgba(255,107,107,0.3);border-radius:18px;color:var(--red)}
.gone-icon svg{width:30px;height:30px}
.gone h1{font-size:22px;font-weight:800;margin-bottom:8px}
.gone p{font-size:13px;color:var(--txt2);max-width:400px;margin:0 auto 20px}

/* How it works */
.how{margin-top:clamp(28px,5vw,44px)}
.how h2{font-size:15px;font-weight:700;text-align:center;color:var(--txt2);margin-bottom:18px;letter-spacing:.3px}
.how-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px}
.how-item{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:18px}
.how-num{width:26px;height:26px;display:flex;align-items:center;justify-content:center;background:rgba(0,224,164,0.12);color:var(--accent);border-radius:8px;font-size:13px;font-weight:700;margin-bottom:11px}
.how-item strong{font-size:13px;font-weight:700;display:block;margin-bottom:5px}
.how-item p{font-size:11.5px;color:var(--txt2);line-height:1.6}

/* FAQ (SEO + help) */
.faq{margin-top:clamp(28px,5vw,44px)}
.faq h2{font-size:15px;font-weight:700;text-align:center;color:var(--txt2);margin-bottom:18px;letter-spacing:.3px}
.faq-list{display:grid;gap:12px}
.faq-item{background:var(--card);border:1px solid var(--border);border-radius:13px;padding:16px 18px}
.faq-item h3{font-size:13.5px;font-weight:700;color:var(--txt);margin-bottom:6px}
.faq-item p{font-size:12.5px;color:var(--txt2);line-height:1.65}
.faq-item em{color:var(--accent);font-style:normal;font-weight:600}

footer{text-align:center;padding:clamp(26px,5vw,42px) 0 14px;color:var(--txt3);font-size:11px}
footer b{color:var(--txt2)}
footer span{display:block;margin-top:5px;font-size:10px;opacity:.7}

/* Toast */
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(140%);background:rgba(12,19,24,.97);border:1px solid var(--accent);border-radius:11px;padding:12px 20px;font-size:13px;font-weight:500;z-index:100;transition:transform .35s cubic-bezier(.16,1,.3,1);backdrop-filter:blur(20px);box-shadow:0 10px 30px rgba(0,0,0,.5);max-width:90vw}
.toast.err{border-color:var(--red)}
.toast.on{transform:translateX(-50%) translateY(0)}

@media(max-width:480px){
    .options{flex-direction:column;gap:14px}
    .link-row{flex-direction:column}
    .btn-copy{padding:12px}
}