:root{--brand-page-bg: #f4f5f7;--brand-surface: #ffffff;--brand-fg: #0e121b;--brand-fg-secondary: #525866;--brand-primary: #4779ff;--brand-primary-hover: #2f61e8;--brand-primary-fg: #ffffff;--brand-row-bg: #f9fafb;--brand-row-hover: #f4f5f7;--brand-muted: #99a0ae;--brand-border: #e1e4ea;--brand-input-border: #d2d6de;--brand-success-bg: #e7f6ec;--brand-success-fg: #15803d;--brand-error-bg: #fee2e2;--brand-error-border: #fecaca;--brand-error-fg: #b91c1c;--brand-info-bg: #eaf0ff;--brand-info-border: #c7d6ff;--brand-info-fg: #2f61e8;--brand-radius-sm: 6px;--brand-radius: 10px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--brand-page-bg);color:var(--brand-fg);min-height:100vh}.container{display:flex;justify-content:center;align-items:center;min-height:100vh;padding:1rem}.card{width:100%;max-width:640px;background:var(--brand-surface);border:1px solid rgba(0,0,0,.04);border-radius:16px;box-shadow:0 2px 12px #0000000f;padding:28px}h1{font-size:28px;font-weight:600;color:var(--brand-fg);line-height:1.15;letter-spacing:-.022em}.subtitle{color:var(--brand-muted);font-size:15px;line-height:1.4;margin-top:.375rem;margin-bottom:1.5rem}.status{padding:.75rem 1rem;border-radius:var(--brand-radius);font-size:.875rem;margin-bottom:1rem;border:1px solid transparent}.status.error{background:var(--brand-error-bg);border-color:var(--brand-error-border);color:var(--brand-error-fg)}.status.success{background:var(--brand-success-bg);color:var(--brand-success-fg)}.status.info{background:var(--brand-info-bg);border-color:var(--brand-info-border);color:var(--brand-info-fg)}.field{margin-bottom:1rem}label{display:block;font-size:.875rem;font-weight:500;color:var(--brand-fg-secondary);margin-bottom:.375rem}.optional{font-weight:400;color:var(--brand-muted)}input[type=text],input[type=password],select{width:100%;padding:.5rem .75rem;background:var(--brand-surface);border:1px solid var(--brand-input-border);border-radius:var(--brand-radius);color:var(--brand-fg);font-size:.875rem;outline:none;transition:border-color .15s,box-shadow .15s}input:focus,select:focus{border-color:var(--brand-primary);box-shadow:0 0 0 3px #4779ff26}input::placeholder{color:var(--brand-muted)}select{cursor:pointer}.detected-value{width:100%;padding:.5rem .75rem;background:var(--brand-row-bg);border:1px solid var(--brand-border);border-radius:var(--brand-radius);color:var(--brand-fg);font-size:.875rem;font-weight:600}.share-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.375rem}.share-header label{margin-bottom:0}.upload-btn{display:inline-block;padding:.25rem .75rem;background:var(--brand-row-bg);border:1px solid var(--brand-border);border-radius:var(--brand-radius-sm);color:var(--brand-fg-secondary);font-size:.75rem;cursor:pointer;transition:background .15s}.upload-btn:hover{background:var(--brand-row-hover)}.drop-zone{position:relative;border-radius:var(--brand-radius);transition:box-shadow .15s}.drop-zone.dragging{box-shadow:0 0 0 2px var(--brand-primary)}textarea{width:100%;padding:.5rem .75rem;background:var(--brand-surface);border:1px solid var(--brand-input-border);border-radius:var(--brand-radius);color:var(--brand-fg);font-family:ui-monospace,SF Mono,Menlo,Consolas,monospace;font-size:.8rem;resize:none;outline:none;transition:border-color .15s,box-shadow .15s}textarea:focus{border-color:var(--brand-primary);box-shadow:0 0 0 3px #4779ff26}textarea::placeholder{color:var(--brand-muted)}.drop-overlay{position:absolute;inset:0;background:#4779ff14;border-radius:var(--brand-radius);display:flex;align-items:center;justify-content:center;color:var(--brand-info-fg);font-weight:500;pointer-events:none}.export-btn{width:100%;padding:.75rem;background:var(--brand-primary);border:none;border-radius:var(--brand-radius);color:var(--brand-primary-fg);font-size:.9375rem;font-weight:600;cursor:pointer;transition:background .15s;margin-top:.5rem}.export-btn:hover:not(:disabled){background:var(--brand-primary-hover)}.export-btn:disabled{opacity:.6;cursor:not-allowed}.result{margin-top:1.5rem;padding-top:1.5rem;border-top:1px solid var(--brand-border)}.result label{color:var(--brand-success-fg);font-weight:600;margin-bottom:.5rem}.private-key-box{display:flex;align-items:center;gap:.5rem;background:var(--brand-row-bg);border:1px solid var(--brand-border);border-radius:var(--brand-radius);padding:.75rem}.private-key-box code{flex:1;font-family:ui-monospace,SF Mono,Menlo,Consolas,monospace;font-size:.8rem;color:var(--brand-fg);word-break:break-all;user-select:all}.copy-btn{flex-shrink:0;padding:.375rem .75rem;background:var(--brand-surface);border:1px solid var(--brand-border);border-radius:var(--brand-radius-sm);color:var(--brand-fg-secondary);font-size:.75rem;font-weight:500;cursor:pointer;transition:background .15s}.copy-btn:hover{background:var(--brand-row-hover)}