.ar-container{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:24px}

.ar-calc-card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:24px;display:flex;flex-direction:column;gap:18px}

.ar-fields{display:flex;align-items:flex-end;gap:12px;flex-wrap:wrap}
.ar-field{display:flex;flex-direction:column;gap:6px;font-size:.82rem;font-weight:700;color:var(--muted-2);text-transform:uppercase;letter-spacing:.05em}
.ar-field input{padding:10px 14px;border-radius:8px;border:1px solid var(--line);background:var(--bg-2);color:var(--text);font-size:1.05rem;font-family:inherit;width:140px;outline:none;transition:border-color .15s}
.ar-field input:focus{border-color:var(--accent)}
.ar-ratio-field input{width:120px}
.ar-x,.ar-equals{font-size:1.3rem;color:var(--muted-2);padding-bottom:2px;flex-shrink:0}

.ar-lock-row{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.ar-lock-label{font-size:.83rem;color:var(--muted-2);font-weight:700}
.ar-radio{display:flex;align-items:center;gap:5px;font-size:.88rem;cursor:pointer;user-select:none}
.ar-radio input{accent-color:var(--accent);width:15px;height:15px}
.ar-calc-btn{margin-left:auto;padding:9px 22px;border-radius:8px;background:var(--grad);color:#0b0e1c;border:none;font-family:inherit;font-size:.9rem;font-weight:700;cursor:pointer;transition:opacity .15s}
.ar-calc-btn:hover{opacity:.88}
.ar-clear-btn{padding:9px 16px;border-radius:8px;border:1px solid var(--line);background:var(--bg-2);color:var(--muted-2);font-family:inherit;font-size:.88rem;cursor:pointer;transition:background .12s}
.ar-clear-btn:hover{background:var(--card-hover)}

.ar-result{display:flex;align-items:center;gap:12px;background:var(--bg-2);border-radius:8px;padding:12px 16px}
.ar-result-label{font-size:.8rem;font-weight:700;color:var(--muted-2);text-transform:uppercase;letter-spacing:.06em}
.ar-result-val{font-size:1.2rem;font-weight:700;color:var(--accent)}
.ar-result-copy{margin-left:auto;background:none;border:1px solid var(--line);color:var(--muted-2);
  border-radius:7px;width:28px;height:28px;cursor:pointer;flex-shrink:0;transition:all .15s}
.ar-result-copy:hover{color:var(--text);border-color:var(--accent)}
.ar-result-copy.copied{color:#5cd98a;border-color:#5cd98a}

.ar-preview-wrap{display:flex;flex-direction:column;gap:10px;align-items:center}
.ar-preview-label{font-size:.8rem;font-weight:700;color:var(--muted-2);text-transform:uppercase;letter-spacing:.06em}
.ar-preview-box{width:100%;max-width:400px;height:200px;display:flex;align-items:center;justify-content:center;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px}
.ar-preview-inner{background:var(--grad);border-radius:6px;display:flex;align-items:center;justify-content:center;min-width:40px;min-height:30px;max-width:100%;max-height:100%;transition:width .3s,height .3s}
.ar-preview-ratio{font-size:.9rem;font-weight:700;color:#0b0e1c}

.ar-presets-title,.ar-table-title{font-size:.82rem;font-weight:700;color:var(--muted-2);text-transform:uppercase;letter-spacing:.06em;margin:0}
.ar-preset-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:10px}
.ar-preset-card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:14px 16px;cursor:pointer;transition:border-color .15s,transform .12s;display:flex;flex-direction:column;gap:4px}
.ar-preset-card:hover{border-color:var(--accent);transform:translateY(-2px)}
.ar-preset-card.active{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 8%,var(--card))}
.ar-preset-ratio{font-size:1.1rem;font-weight:700;color:var(--text)}
.ar-preset-name{font-size:.78rem;color:var(--muted-2)}
.ar-preset-visual{width:100%;height:32px;display:flex;align-items:center;margin-top:6px}
.ar-preset-bar{background:var(--grad);border-radius:3px;height:100%;opacity:.7}

.ar-table-wrap{display:flex;flex-direction:column;gap:12px}
.ar-table-title span{color:var(--accent)}
.ar-table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:10px}
.ar-table{width:100%;border-collapse:collapse;font-size:.88rem}
.ar-table th{padding:10px 14px;text-align:left;font-size:.78rem;font-weight:700;color:var(--muted-2);text-transform:uppercase;letter-spacing:.06em;background:var(--bg-2);border-bottom:1px solid var(--line)}
.ar-table td{padding:9px 14px;border-bottom:1px solid var(--line);color:var(--text)}
.ar-table tbody tr:last-child td{border-bottom:none}
.ar-table tbody tr:hover{background:var(--card-hover)}
.ar-table td:first-child{font-weight:600}
.ar-table td:nth-child(2),.ar-table td:nth-child(3){font-family:monospace}

@media(max-width:600px){
  .ar-fields{flex-direction:column;align-items:stretch}
  .ar-field input,.ar-ratio-field input{width:100%}
  .ar-x,.ar-equals{display:none}
  .ar-lock-row{gap:10px}
  .ar-calc-btn{margin-left:0;width:100%}
}