.page { max-width: 720px; margin: 32px auto; padding: 0 20px; }
.page h1 { font-size: 36px; color: #fff; margin-bottom: 8px; letter-spacing: -0.5px; }
.page .subtitle { color: #888; font-size: 15px; margin-bottom: 24px; }
.page label { display: block; font-size: 12px; color: #aaa; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 8px; }
.tabs { display: inline-flex; background: #0d0d0d; border: 1px solid #262626; border-radius: 8px; padding: 3px; margin-bottom: 22px; }
.tab-btn { padding: 8px 18px; background: transparent; border: none; color: #999; font-size: 13px; font-weight: 500; border-radius: 5px; cursor: pointer; font-family: inherit; transition: all 0.15s; }
.tab-btn:hover { color: #fff; }
.tab-btn.active { background: #ff4444; color: #fff; }
.bc-grid { display: grid; grid-template-columns: 1fr 140px; gap: 12px; margin-bottom: 14px; }
.bc-field input { width: 100%; padding: 12px 14px; background: #141414; border: 1px solid #262626; color: #e1e1e1; font-size: 14px; border-radius: 10px; font-family: 'SF Mono', Monaco, monospace; outline: none; }
.bc-field input:focus { border-color: #ff4444; }
.tab-content input[type=text] { width: 100%; padding: 12px 14px; background: #141414; border: 1px solid #262626; color: #e1e1e1; font-size: 14px; border-radius: 10px; font-family: 'SF Mono', Monaco, monospace; outline: none; }
.tab-content input[type=text]:focus { border-color: #ff4444; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 22px; font-size: 14px; }
.btn:disabled { opacity: 0.5; cursor: wait; }
.err { min-height: 18px; font-size: 12px; color: #ff7070; margin-top: 8px; }
.bc-output-row { display: flex; gap: 8px; align-items: stretch; }
.bc-output { flex: 1; padding: 12px 14px; background: #0f0f0f; border: 1px solid #1f1f1f; color: #fff; font-family: 'SF Mono', Monaco, monospace; font-size: 13px; word-break: break-all; border-radius: 10px; min-height: 42px; }
.bc-output.empty { color: #555; }
.copy-btn { padding: 6px 14px; background: #1f1f1f; border: 1px solid #333; color: #ccc; font-size: 13px; font-weight: 500; border-radius: 6px; cursor: pointer; font-family: inherit; transition: all 0.15s; }
.copy-btn:hover { background: #2a2a2a; border-color: #444; color: #fff; }
.copy-btn.copied { border-color: #4ade80; color: #4ade80; }
.hint { font-size: 12px; color: #666; margin-top: 10px; }
.verdict { margin-top: 14px; padding: 16px 20px; border-radius: 12px; font-size: 16px; font-weight: 600; text-align: center; }
.verdict.match { background: rgba(74,222,128,0.08); border: 1px solid #4ade80; color: #4ade80; }
.verdict.nomatch { background: rgba(255,68,68,0.08); border: 1px solid #ff4444; color: #ff4444; }
@media (max-width: 600px) { .page h1 { font-size: 28px; } .bc-grid { grid-template-columns: 1fr; } }