:root{--bg:#101923;--panel:#172330;--panel-soft:#1c2a38;--line:#304252;--text:#eef5f5;--muted:#9eb0bd;--accent:#45d4b0;--accent-strong:#72e3c5;--danger:#ff9f96;--shadow:0 22px 60px rgba(0,0,0,.25)}
*{box-sizing:border-box}body{margin:0;min-width:320px;background:radial-gradient(circle at 12% 0%,#1c3641 0,transparent 32rem),radial-gradient(circle at 95% 24%,#1c3039 0,transparent 26rem),var(--bg);color:var(--text);font-family:Manrope,system-ui,sans-serif}.page-shell{width:min(100% - 32px,1000px);margin:0 auto;padding:60px 0 36px}.hero{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:18px;margin:0 8px 30px}.brand-mark{width:51px;height:51px;display:flex;align-items:center;justify-content:center;position:relative}.brand-mark:before{content:"";position:absolute;width:38px;height:38px;border:2px solid var(--accent);border-radius:50%;opacity:.75}.brand-mark span{display:block;width:8px;height:8px;margin:2px;border:2px solid var(--accent-strong);border-radius:50%;background:var(--bg)}.eyebrow{font:500 11px "DM Mono",monospace;color:var(--accent);letter-spacing:.15em;margin:0 0 5px}h1{font-size:clamp(30px,5vw,43px);letter-spacing:-.07em;line-height:1;margin:0;font-weight:800}h1 span{color:var(--accent)}.subtitle{margin:9px 0 0;color:var(--muted);font-size:14px}.hero-note{color:var(--muted);font-size:12px;max-width:170px;text-align:right;line-height:1.55}.cipher-card{background:linear-gradient(145deg,rgba(30,45,59,.96),rgba(20,32,44,.96));border:1px solid rgba(121,155,170,.2);border-radius:24px;padding:clamp(20px,4vw,38px);box-shadow:var(--shadow)}button,input,textarea,select{font:inherit}.mode-switch{display:inline-flex;background:#101b25;border:1px solid var(--line);border-radius:13px;padding:4px;margin-bottom:27px}.mode-button{border:0;border-radius:9px;background:transparent;color:var(--muted);font-size:14px;font-weight:700;padding:9px 17px;cursor:pointer;transition:.2s}.mode-button.active{color:#082720;background:var(--accent);box-shadow:0 3px 10px rgba(0,0,0,.2)}.field-group label,.advanced label{display:block;font-size:13px;font-weight:700;color:#dbe7e9}.label-row{display:flex;gap:12px;justify-content:space-between;align-items:baseline;margin-bottom:9px}.label-row span,.field-status{color:var(--muted);font-size:11px;line-height:1.4}.field-status{margin:7px 0 0}.field-status.manual{color:var(--accent-strong)}textarea,input,select{width:100%;background:#101b25;border:1px solid var(--line);border-radius:11px;color:var(--text);outline:none;transition:border-color .2s,box-shadow .2s}textarea{resize:vertical;padding:14px 15px;line-height:1.55;font-size:14px}input,select{height:43px;padding:0 12px;margin-top:8px;font-size:14px}textarea:focus,input:focus,select:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(69,212,176,.12)}.key-grid{display:grid;grid-template-columns:minmax(0,1fr) .85fr;align-items:center;gap:25px;margin-top:20px}.key-tip{font-size:12px;line-height:1.6;color:var(--muted);padding:13px 15px;border-left:2px solid rgba(69,212,176,.65);background:rgba(69,212,176,.045);border-radius:0 9px 9px 0}.advanced{margin-top:24px;border-top:1px solid rgba(158,176,189,.17);border-bottom:1px solid rgba(158,176,189,.17)}summary{list-style:none;cursor:pointer;padding:16px 0;font-size:13px;font-weight:700;color:#dbe7e9;display:flex;justify-content:space-between}summary::-webkit-details-marker{display:none}.summary-icon{color:var(--accent);font-size:19px;line-height:.7;transition:transform .2s}.advanced[open] .summary-icon{transform:rotate(45deg)}.advanced-content{display:grid;grid-template-columns:1.1fr 1fr;gap:24px;padding:1px 0 22px}.rotor-controls,.settings-controls{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.settings-controls{grid-template-columns:1fr}.advanced select{margin-top:7px}.rotor-stage{display:flex;justify-content:center;gap:clamp(10px,4vw,40px);padding:30px 8px 24px}.rotor-wrap{text-align:center;color:var(--muted);font:500 10px "DM Mono",monospace;letter-spacing:.08em}.rotor{width:clamp(82px,16vw,124px);aspect-ratio:1;border:2px solid #4c6876;border-radius:50%;margin-top:10px;position:relative;background:radial-gradient(circle,#1f3741 0 30%,#111d28 31% 51%,#27414b 52% 54%,#121e29 55%);box-shadow:inset 0 0 18px rgba(0,0,0,.6),0 0 0 5px rgba(69,212,176,.04);transition:transform .65s cubic-bezier(.2,.8,.25,1)}.rotor.spin{transform:rotate(360deg)}.rotor-letter{position:absolute;left:50%;top:50%;color:#c5d7d6;font:500 clamp(9px,1.5vw,12px) "DM Mono",monospace;transform:translate(-50%,-50%) rotate(var(--angle)) translateY(calc(clamp(82px,16vw,124px) / -2.72)) rotate(calc(var(--angle) * -1))}.rotor-center{position:absolute;inset:39%;border-radius:50%;background:var(--accent);box-shadow:0 0 15px rgba(69,212,176,.4)}.primary-button{width:100%;border:0;border-radius:12px;background:linear-gradient(100deg,var(--accent),#65dcbf);color:#092821;font-weight:800;font-size:15px;padding:14px;cursor:pointer;transition:transform .2s,box-shadow .2s}.primary-button:hover{transform:translateY(-1px);box-shadow:0 9px 20px rgba(69,212,176,.18)}.primary-button span{margin-left:7px;font-size:19px}.validation{min-height:19px;margin:10px 0 0;color:var(--danger);font-size:12px;line-height:1.5}.validation.success{color:var(--accent-strong)}.result-group{margin-top:7px}.result-group textarea{font-family:"DM Mono",monospace;letter-spacing:.08em;background:#0d1822;color:#bbf5df}.result-actions{display:flex;align-items:center;gap:13px;margin-top:10px}.secondary-button,.text-button{cursor:pointer;font-size:12px;font-weight:700;border-radius:8px;padding:8px 12px}.secondary-button{border:1px solid #3e6470;background:rgba(69,212,176,.09);color:var(--accent-strong)}.text-button{border:0;background:transparent;color:var(--muted)}.footer-note{text-align:center;color:#78909e;font-size:11px;margin:20px auto 0;max-width:590px;line-height:1.55}@media(max-width:650px){.page-shell{width:min(100% - 20px,1000px);padding-top:28px}.hero{grid-template-columns:auto 1fr;gap:12px;margin-bottom:22px}.brand-mark{width:43px;height:43px}.hero-note{display:none}.cipher-card{border-radius:18px;padding:20px}.label-row{align-items:flex-start;flex-direction:column;gap:3px}.key-grid,.advanced-content{grid-template-columns:1fr;gap:16px}.rotor-stage{gap:12px;padding:25px 0 18px}.rotor-controls{gap:7px}.mode-button{padding:9px 12px;font-size:13px}}