:root{--bg: #0b0f19;--panel: #101522;--text: #e6e8ee;--muted: #9aa3b2;--accent: #4f7cff;--border: #1a2233}.app--light{--bg: #ffffff;--panel: #f6f7fb;--text: #0b0f19;--muted: #4a5568;--accent: #3b82f6;--border: #e5e7eb}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,Helvetica,Arial,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol}.app{display:grid;grid-template-rows:auto 1fr auto;min-height:100%}.app-header,.app-footer{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border)}.app-footer{border-top:1px solid var(--border);border-bottom:none}.app-title{margin:0;font-size:20px;letter-spacing:.2px}.container{padding:20px;max-width:900px;margin:0 auto}.editor{width:100%;box-sizing:border-box;background:var(--panel);color:var(--text);border:1px solid var(--border);border-radius:10px;padding:14px;resize:vertical}.toolbar{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}.stats{display:flex;gap:16px;margin-top:14px;color:var(--muted)}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:var(--accent);color:#fff;border:none;padding:10px 14px;border-radius:8px;cursor:pointer;font-weight:600}.btn[disabled]{opacity:.5;cursor:not-allowed}.btn--secondary{background:transparent;color:var(--text);border:1px solid var(--border)}.btn--ghost{background:transparent;color:var(--text);border:1px solid var(--border);padding:8px 10px}.visually-hidden{position:absolute!important;height:1px;width:1px;overflow:hidden;clip:rect(1px,1px,1px,1px);white-space:nowrap}.panel{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:12px;margin-top:16px}.panel-title{font-weight:700;margin-bottom:8px;font-size:14px;color:var(--muted)}.freq{display:flex;gap:8px;flex-wrap:wrap}.chip{background:transparent;border:1px solid var(--border);border-radius:999px;padding:6px 10px;font-size:12px;color:var(--text)}