:root{--bg: #17212b;--card: #232e3c;--text: #f5f5f5;--muted: #708499;--accent: #5288c1;--divider: #1c2733;--shadow: 0 4px 12px rgba(0, 0, 0, .25);--link: #6ab3f3;--input-bg: #17212b}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;font-size:14px}.wrap{padding:12px;max-width:480px;margin:0 auto;box-sizing:border-box;min-height:100vh;display:flex;flex-direction:column}.card{background:var(--card);border-radius:12px;padding:14px;box-shadow:var(--shadow);margin-bottom:10px}.hstack{display:flex;align-items:center;gap:10px}.vstack{display:flex;flex-direction:column;gap:10px}.title{font-size:20px;font-weight:700;margin:0 0 4px}.muted{color:var(--muted);font-size:13px}.btn{display:block;width:100%;text-align:center;padding:10px 0;border-radius:8px;background:var(--accent);color:#fff;font-weight:600;font-size:14px;border:none;cursor:pointer;transition:opacity .2s}.btn:active{opacity:.8}.btn:disabled{opacity:.5;cursor:default}.list{background:var(--card);border-radius:12px;overflow:hidden}.item{display:flex;align-items:center;justify-content:space-between;padding:14px;border-top:1px solid var(--divider);cursor:pointer}.item:first-child{border-top:none}.item:active{background:#0000000d}.item .left{display:flex;align-items:center;gap:12px;font-size:15px}.chevron{opacity:.5;font-size:18px}.badge{background:var(--divider);color:var(--text);padding:2px 8px;border-radius:6px;font-size:11px;font-weight:500}.nav-header{display:flex;align-items:center;height:40px;margin-bottom:8px;position:relative}.back-btn{background:transparent;border:none;color:var(--accent);font-size:26px;cursor:pointer;padding:0 10px 0 0;line-height:1}.header-title{font-size:18px;font-weight:600;position:absolute;left:50%;transform:translate(-50%);white-space:nowrap}.section-label{font-size:11px;font-weight:600;text-transform:uppercase;color:var(--muted);margin:12px 0 6px 4px;letter-spacing:.5px}.option-list{display:flex;flex-direction:column;gap:6px}.option-item{display:flex;align-items:center;justify-content:space-between;padding:12px;background:var(--input-bg);border-radius:10px;border:1px solid transparent;cursor:pointer;font-size:14px;color:var(--text);transition:all .2s}.option-item--selected{border-color:var(--accent);background:#5288c11a}.option-left{display:flex;align-items:center;gap:12px}.radio-circle{width:18px;height:18px;border-radius:50%;border:2px solid var(--muted);box-sizing:border-box;opacity:.6}.option-item--selected .radio-circle{border-color:var(--accent);border-width:6px;opacity:1}.input-box{background:var(--input-bg);border:1px solid var(--divider);border-radius:10px;padding:12px;font-size:14px;color:var(--text);outline:none;width:100%;box-sizing:border-box}.input-box:focus{border-color:var(--accent)}.error-text{color:#ff5e5e;font-size:12px;margin-top:4px;margin-left:4px}.ref-hero{text-align:center;padding:10px 0 20px}.ref-icon{font-size:56px;margin-bottom:12px}.ref-desc{font-size:15px;line-height:1.5;color:var(--text);padding:0 10px}.copy-row{display:flex;align-items:center;background:var(--input-bg);border-radius:10px;padding:0 12px;height:48px;border:1px solid var(--divider)}.copy-link{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-family:monospace;font-size:14px;color:var(--link)}.copy-btn{padding:10px;margin-right:-10px;color:var(--muted);cursor:pointer}.copy-btn:active{color:var(--accent)}.empty-state{text-align:center;color:var(--muted);padding:20px;font-size:14px;background:var(--input-bg);border-radius:10px}.bottom-bar{margin-top:auto;padding-top:20px}