:root{
  --bg:#f2f5fb;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#64748b;
  --line:#e6eaf2;
  --blue:#1f6feb;
  --blue2:#0b57d0;
  --green:#16a34a;
  --shadow:0 10px 30px rgba(15,23,42,.08);
  --radius:14px;
}

*{box-sizing:border-box}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial;
  color:var(--text);
  background:var(--bg);
}

.ar-container{max-width:1180px;margin:0 auto;padding:0 16px}
.ar-header{background:#fff;border-bottom:1px solid var(--line)}
.ar-header__inner{display:flex;align-items:center;gap:14px;min-height:66px}
.ar-brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);font-weight:900}
.ar-brand__logo{
  width:40px;height:40px;border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(135deg, rgba(31,111,235,.15), rgba(22,163,74,.10));
  border:1px solid rgba(31,111,235,.25);
  font-size:14px;
}
.ar-brand__name{letter-spacing:.2px}

.ar-nav{margin-left:auto;display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.ar-nav__link{
  text-decoration:none;color:#334155;font-weight:700;font-size:13px;
  padding:9px 10px;border-radius:10px;
}
.ar-nav__link:hover{background:rgba(31,111,235,.08);color:var(--blue)}
.ar-nav__link.is-active{background:rgba(31,111,235,.10);color:var(--blue)}
.ar-nav__btn{
  text-decoration:none;background:var(--blue);color:#fff;font-weight:900;
  padding:9px 12px;border-radius:10px;font-size:13px;
}
.ar-nav__btn:hover{background:var(--blue2)}
.ar-nav__ghost{
  text-decoration:none;color:#334155;font-weight:900;
  padding:9px 10px;border-radius:10px;font-size:13px;border:1px solid var(--line);
}
.ar-nav__ghost:hover{border-color:rgba(31,111,235,.25);color:var(--blue)}
.ar-nav__menu{display:none;margin-left:auto;border:1px solid var(--line);background:#fff;border-radius:10px;padding:10px 12px;font-weight:900}

.ar-subbar{padding:10px 0}
.ar-limit{display:flex;align-items:center;gap:12px}
.ar-limit__pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 10px;border-radius:999px;
  background:rgba(31,111,235,.10);
  border:1px solid rgba(31,111,235,.16);
  color:#1e293b;font-weight:800;font-size:13px;
}
.ar-upgrade{color:var(--blue);font-weight:900;text-decoration:none}
.ar-upgrade:hover{text-decoration:underline}

.ar-mnav{padding:10px 0;border-top:1px solid var(--line)}
.ar-mnav__link{display:block;padding:10px 8px;color:#334155;text-decoration:none;font-weight:800}
.ar-mnav__link:hover{background:rgba(31,111,235,.08);color:var(--blue)}

.ar-main{padding:18px 0 26px}
.ar-tool{display:grid;grid-template-columns: 1.15fr .85fr;gap:16px;align-items:start}
.ar-title{margin:0 0 10px;font-size:26px;letter-spacing:.2px}

.ar-section{margin-bottom:12px}
.ar-section__label{font-weight:900;color:#334155;margin-bottom:10px}
.ar-modes{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}
.ar-mode{
  border:1px solid var(--line);background:#fff;border-radius:12px;
  padding:10px;cursor:pointer;text-align:left;
  display:flex;gap:10px;align-items:center;
  box-shadow:none;
}
.ar-mode:hover{border-color:rgba(31,111,235,.25)}
.ar-mode.is-active{border-color:rgba(31,111,235,.45);box-shadow:0 0 0 4px rgba(31,111,235,.08)}
.ar-mode__icon{font-size:18px}
.ar-mode__name{display:block;font-weight:900;font-size:13px}
.ar-mode__desc{display:block;font-size:12px;color:var(--muted);margin-top:2px}

.ar-panel{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:14px;
}
.ar-panel__top{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.ar-upload{display:flex;gap:10px;align-items:center}
.ar-upload__btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 12px;border-radius:12px;
  border:1px solid rgba(31,111,235,.25);
  background:rgba(31,111,235,.08);
  color:var(--blue);font-weight:900;cursor:pointer;
}
.ar-upload__btn:hover{background:rgba(31,111,235,.12)}
.ar-upload__sample{
  border:0;background:transparent;color:var(--blue);font-weight:900;cursor:pointer;
}
.ar-upload__sample:hover{text-decoration:underline}

.ar-lang{display:flex;flex-direction:column;gap:6px;min-width:220px}
.ar-lang__label{font-size:12px;color:#334155;font-weight:900}
select{
  width:100%;padding:10px 12px;border-radius:12px;border:1px solid var(--line);
  background:#fff;font-weight:800;color:#0f172a;outline:none;
}
select:focus{border-color:rgba(31,111,235,.35);box-shadow:0 0 0 4px rgba(31,111,235,.10)}

textarea{
  width:100%;min-height:300px;margin-top:12px;
  border-radius:12px;border:1px solid var(--line);
  padding:12px;outline:none;resize:vertical;
  font-size:14px;line-height:1.5;
  background:#fff;
}
textarea:focus{border-color:rgba(31,111,235,.35);box-shadow:0 0 0 4px rgba(31,111,235,.10)}

.ar-meter{margin-top:12px}
.ar-meter__row{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}
.ar-meter__words{font-weight:900;color:#334155}
.ar-meter__small{color:var(--muted);font-weight:800;font-size:12px}
.ar-meter__bar{height:10px;border-radius:999px;background:#eef2ff;border:1px solid rgba(31,111,235,.12);overflow:hidden;margin-top:8px}
.ar-meter__fill{height:100%;background:linear-gradient(90deg,var(--blue),#22c55e)}

.ar-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:14px}
.ar-btn{
  border:1px solid var(--line);
  border-radius:12px;padding:10px 14px;
  font-weight:900;cursor:pointer;background:#fff;color:#0f172a;
}
.ar-btn--primary{background:var(--blue);border-color:rgba(31,111,235,.3);color:#fff}
.ar-btn--primary:hover{background:var(--blue2)}
.ar-btn--light{background:#f8fafc}
.ar-btn--ghost{background:#fff}
.ar-progress{margin-left:auto;min-width:240px}
.ar-progress__label{font-size:12px;color:#334155;font-weight:900;margin-bottom:6px}
.ar-progress__bar{height:10px;border-radius:999px;background:#eef2ff;border:1px solid rgba(31,111,235,.12);overflow:hidden}
.ar-progress__fill{height:100%;background:linear-gradient(90deg,#22c55e,var(--blue))}

.ar-advanced{display:flex;gap:10px;flex-wrap:wrap;align-items:flex-end;margin-top:12px}
.ar-advanced__item{min-width:180px}
.ar-small{display:block;font-size:12px;color:#334155;font-weight:900;margin-bottom:6px}
.ar-mini{font-size:12px;color:var(--muted);font-weight:800;margin-top:6px}
input[type=range]{width:100%}
.ar-check{display:flex;align-items:center;gap:8px;font-weight:900;color:#334155}
.ar-check input{width:16px;height:16px}

.status{min-height:20px;margin-top:10px;font-weight:900;color:var(--muted)}
.status.ok{color:var(--green)}
.status.err{color:#e11d48}

.ar-tool__right{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:14px;
}
.ar-outputHead{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:10px}
.ar-h2{margin:0;font-size:18px}
.ar-outBtns{display:flex;gap:8px}

.tabs{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0}
.tab{border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 10px;font-weight:900;color:var(--muted);cursor:pointer}
.tab.active{background:rgba(31,111,235,.10);border-color:rgba(31,111,235,.35);color:var(--text)}

.compare{margin-top:10px}
.compare summary{cursor:pointer;color:#334155;font-weight:900}
.compareGrid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:10px}
pre{white-space:pre-wrap;border:1px solid var(--line);border-radius:12px;padding:10px;margin:0;background:#fff;min-height:150px}
.label{font-size:12px;color:var(--muted);font-weight:900;margin-bottom:6px}

.ar-info{margin-top:18px}
.ar-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.ar-step{background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:14px}
.ar-step__icon{font-size:22px}
.ar-step__title{font-weight:900;margin-top:8px}
.ar-step__text{color:var(--muted);font-weight:700;margin-top:6px;font-size:13px;line-height:1.5}

.ar-footer{margin-top:22px;background:#fff;border-top:1px solid var(--line)}
.ar-footer__grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;padding:18px 0;align-items:start}
.ar-footer__brand{font-weight:900}
.ar-footer__desc{color:var(--muted);font-weight:700;margin-top:6px}
.ar-footer__links{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}
.ar-footer__links a{color:#334155;text-decoration:none;font-weight:900;font-size:13px}
.ar-footer__links a:hover{color:var(--blue);text-decoration:underline}
.ar-footer__copy{grid-column:1/-1;color:var(--muted);font-weight:800;font-size:12px}

@media (max-width: 1100px){
  .ar-modes{grid-template-columns:repeat(2,1fr)}
}
@media (max-width: 980px){
  .ar-tool{grid-template-columns:1fr}
  .ar-nav{display:none}
  .ar-nav__menu{display:block}
  .ar-footer__grid{grid-template-columns:1fr}
  .ar-footer__links{justify-content:flex-start}
  .ar-steps{grid-template-columns:1fr}
}