/* AI Grammar Checker — Scoped Styles */
#agc-wrap*,#agc-wrap *::before,#agc-wrap *::after{box-sizing:border-box;margin:0;padding:0}
#agc-wrap{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:15px;line-height:1.6;color:#1a1a2e;max-width:1100px;margin:0 auto;padding:0 16px 60px}
.agc-topbar{display:flex;align-items:center;justify-content:space-between;padding:16px 0 24px;border-bottom:1px solid #e8e8f0;margin-bottom:40px}
.agc-brand{display:flex;align-items:center;gap:8px;font-size:18px;font-weight:700}
.agc-auth-area{display:flex;align-items:center;gap:10px}
#agc-user-info{display:flex;align-items:center;gap:10px}
.agc-user-name{font-size:14px;font-weight:500;color:#444}
.agc-plan-badge{background:#f0eeff;color:#6c63ff;font-size:11px;font-weight:600;padding:3px 10px;border-radius:20px;text-transform:uppercase}
.agc-plan-badge.paid{background:#e8f5e9;color:#2e7d32}
.agc-hero{text-align:center;margin-bottom:40px}
.agc-hero-title{font-size:36px;font-weight:800;color:#1a1a2e;letter-spacing:-0.8px;margin-bottom:12px}
.agc-hero-sub{font-size:16px;color:#666;max-width:520px;margin:0 auto 24px}
.agc-usage-bar{display:inline-flex;align-items:center;gap:12px;background:#f8f7ff;border:1px solid #e0deff;border-radius:100px;padding:8px 20px;font-size:13px;color:#555}
.agc-usage-track{width:80px;height:6px;background:#e0deff;border-radius:3px;overflow:hidden}
.agc-usage-fill{height:100%;background:linear-gradient(90deg,#6c63ff,#a78bfa);border-radius:3px;transition:width 0.4s ease}
.agc-tool-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:24px}
@media(max-width:720px){.agc-tool-grid{grid-template-columns:1fr}.agc-hero-title{font-size:26px}}
.agc-panel{background:#fff;border:1.5px solid #e8e8f0;border-radius:16px;overflow:hidden;display:flex;flex-direction:column}
.agc-panel-header{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid #f0f0f8;background:#fafafa}
.agc-panel-label{font-size:12px;font-weight:600;color:#888;text-transform:uppercase;letter-spacing:0.8px}
.agc-textarea{flex:1;min-height:280px;padding:18px;border:none;outline:none;font-family:inherit;font-size:14px;line-height:1.7;color:#333;resize:none;background:transparent}
.agc-output-area{flex:1;min-height:280px;padding:18px;overflow-y:auto}
.agc-output-placeholder{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;color:#ccc;text-align:center;min-height:200px}
.agc-panel-footer{display:flex;align-items:center;justify-content:space-between;padding:12px 18px;border-top:1px solid #f0f0f8;background:#fafafa}
.agc-char-count{font-size:12px;color:#bbb}
.agc-btn{display:inline-flex;align-items:center;gap:6px;border:none;border-radius:8px;font-family:inherit;font-weight:600;cursor:pointer;transition:all 0.15s ease;text-decoration:none}
.agc-btn:active{transform:scale(0.97)}
.agc-btn-primary{background:#6c63ff;color:#fff}
.agc-btn-primary:hover{background:#5a52e0;color:#fff;text-decoration:none}
.agc-btn-ghost{background:transparent;color:#666;border:1px solid #e0e0e8}
.agc-btn-ghost:hover{background:#f5f5ff;border-color:#a78bfa;color:#6c63ff}
.agc-btn-sm{padding:7px 14px;font-size:13px}
.agc-btn-xs{padding:5px 10px;font-size:12px}
.agc-btn-lg{padding:12px 24px;font-size:15px}
.agc-btn-full{width:100%;justify-content:center}
.agc-spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,0.3);border-top-color:#fff;border-radius:50%;animation:agc-spin 0.7s linear infinite}
@keyframes agc-spin{to{transform:rotate(360deg)}}
.agc-score-bar{display:flex;gap:12px;margin-bottom:16px}
.agc-score-item{flex:1;text-align:center;padding:12px 8px;border-radius:12px;display:flex;flex-direction:column;gap:4px}
.agc-score-item span{font-size:24px;font-weight:800}
.agc-score-item small{font-size:11px;color:#888;text-transform:uppercase}
.agc-score-green{background:#e8f5e9}
.agc-score-green span{color:#2e7d32}
.agc-score-blue{background:#e3f2fd}
.agc-score-blue span{color:#1565c0}
.agc-score-purple{background:#f3e5f5}
.agc-score-purple span{color:#6a1b9a}
.agc-tabs{display:flex;gap:8px;margin-bottom:12px}
.agc-tab{padding:8px 16px;border:1.5px solid #e0e0e8;border-radius:8px;background:#fff;font-family:inherit;font-size:13px;font-weight:600;cursor:pointer;color:#666}
.agc-tab.active{background:#6c63ff;color:#fff;border-color:#6c63ff}
.agc-corrected-text{font-size:14px;line-height:1.8;color:#333;background:#f8fff8;border:1px solid #c8e6c9;border-radius:8px;padding:14px;white-space:pre-wrap}
.agc-errors-list{display:flex;flex-direction:column;gap:8px}
.agc-error-item{display:flex;align-items:flex-start;gap:10px;padding:10px 12px;background:#fff9f9;border:1px solid #ffcdd2;border-radius:8px;font-size:13px;color:#555}
.agc-error-num{background:#f44336;color:#fff;border-radius:50%;width:20px;height:20px;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;flex-shrink:0}
.agc-limit-banner{background:linear-gradient(135deg,#fafafe,#f5f0ff);border:1.5px solid #d8d0ff;border-radius:20px;padding:40px 32px;text-align:center;margin-bottom:40px}
.agc-limit-banner h3{font-size:22px;font-weight:700;margin-bottom:8px}
.agc-limit-banner p{color:#666;margin-bottom:32px}
.agc-pricing-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;max-width:560px;margin:0 auto}
@media(max-width:520px){.agc-pricing-grid{grid-template-columns:1fr}}
.agc-pricing-card{background:#fff;border:1.5px solid #e8e8f0;border-radius:16px;padding:24px;position:relative}
.agc-pricing-popular{border-color:#6c63ff}
.agc-popular-tag{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:#6c63ff;color:#fff;font-size:11px;font-weight:700;padding:4px 14px;border-radius:20px;white-space:nowrap}
.agc-pricing-name{font-size:13px;font-weight:600;color:#888;margin-bottom:8px;text-transform:uppercase}
.agc-pricing-price{font-size:36px;font-weight:800;color:#1a1a2e;margin-bottom:16px}
.agc-pricing-price span{font-size:14px;font-weight:400;color:#888}
.agc-pricing-features{list-style:none;margin-bottom:20px;text-align:left}
.agc-pricing-features li{font-size:13px;color:#555;padding:4px 0}
.agc-modal-overlay{position:fixed;inset:0;background:rgba(10,10,30,0.5);z-index:99999;display:flex;align-items:center;justify-content:center;padding:16px}
.agc-modal{background:#fff;border-radius:20px;padding:36px 32px;width:100%;max-width:420px;position:relative;box-shadow:0 20px 60px rgba(0,0,0,0.15)}
.agc-modal-close{position:absolute;top:16px;right:18px;background:none;border:none;font-size:22px;color:#aaa;cursor:pointer}
.agc-modal-title{font-size:22px;font-weight:700;color:#1a1a2e;margin-bottom:20px}
.agc-form-group{margin-bottom:16px}
.agc-form-group label{display:block;font-size:13px;font-weight:600;color:#555;margin-bottom:6px}
.agc-input{width:100%;padding:11px 14px;border:1.5px solid #e0e0e8;border-radius:10px;font-family:inherit;font-size:14px;color:#333;outline:none}
.agc-input:focus{border-color:#6c63ff}
.agc-form-error{background:#fff5f5;border:1px solid #ffd0d0;color:#c0392b;font-size:13px;padding:10px 14px;border-radius:8px;margin-bottom:14px}
.agc-form-switch{text-align:center;font-size:13px;color:#888;margin-top:16px}
.agc-form-switch a{color:#6c63ff;text-decoration:none;font-weight:600}
.agc-toast{position:fixed;bottom:30px;left:50%;transform:translateX(-50%);background:#1a1a2e;color:#fff;padding:12px 24px;border-radius:100px;font-size:14px;font-weight:500;z-index:999999;white-space:nowrap}