/* AI Content Detector — Scoped Styles */
#acd-wrap*,#acd-wrap *::before,#acd-wrap *::after{box-sizing:border-box;margin:0;padding:0}
#acd-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}
.acd-topbar{display:flex;align-items:center;justify-content:space-between;padding:16px 0 24px;border-bottom:1px solid #e8e8f0;margin-bottom:40px}
.acd-brand{display:flex;align-items:center;gap:8px;font-size:18px;font-weight:700}
.acd-auth-area{display:flex;align-items:center;gap:10px}
#acd-user-info{display:flex;align-items:center;gap:10px}
.acd-user-name{font-size:14px;font-weight:500;color:#444}
.acd-plan-badge{background:#f0eeff;color:#6c63ff;font-size:11px;font-weight:600;padding:3px 10px;border-radius:20px;text-transform:uppercase}
.acd-plan-badge.paid{background:#e8f5e9;color:#2e7d32}
.acd-hero{text-align:center;margin-bottom:40px}
.acd-hero-title{font-size:36px;font-weight:800;color:#1a1a2e;letter-spacing:-0.8px;margin-bottom:12px}
.acd-hero-sub{font-size:16px;color:#666;max-width:520px;margin:0 auto 24px}
.acd-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}
.acd-usage-track{width:80px;height:6px;background:#e0deff;border-radius:3px;overflow:hidden}
.acd-usage-fill{height:100%;background:linear-gradient(90deg,#6c63ff,#a78bfa);border-radius:3px;transition:width 0.4s ease}
.acd-tool-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:24px}
@media(max-width:720px){.acd-tool-grid{grid-template-columns:1fr}.acd-hero-title{font-size:26px}}
.acd-panel{background:#fff;border:1.5px solid #e8e8f0;border-radius:16px;overflow:hidden;display:flex;flex-direction:column}
.acd-panel-header{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid #f0f0f8;background:#fafafa}
.acd-panel-label{font-size:12px;font-weight:600;color:#888;text-transform:uppercase;letter-spacing:0.8px}
.acd-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}
.acd-output-area{flex:1;min-height:280px;padding:18px;overflow-y:auto}
.acd-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}
.acd-panel-footer{display:flex;align-items:center;justify-content:space-between;padding:12px 18px;border-top:1px solid #f0f0f8;background:#fafafa}
.acd-char-count{font-size:12px;color:#bbb}
.acd-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}
.acd-btn:active{transform:scale(0.97)}
.acd-btn-primary{background:#6c63ff;color:#fff}
.acd-btn-primary:hover{background:#5a52e0;color:#fff;text-decoration:none}
.acd-btn-ghost{background:transparent;color:#666;border:1px solid #e0e0e8}
.acd-btn-ghost:hover{background:#f5f5ff;border-color:#a78bfa;color:#6c63ff}
.acd-btn-sm{padding:7px 14px;font-size:13px}
.acd-btn-xs{padding:5px 10px;font-size:12px}
.acd-btn-lg{padding:12px 24px;font-size:15px}
.acd-btn-full{width:100%;justify-content:center}
.acd-spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,0.3);border-top-color:#fff;border-radius:50%;animation:acd-spin 0.7s linear infinite}
@keyframes acd-spin{to{transform:rotate(360deg)}}
/* Verdict */
.acd-verdict{display:flex;flex-direction:column;align-items:center;padding:20px;border-radius:16px;margin-bottom:16px;text-align:center;gap:6px}
.acd-verdict-ai{background:#ffebee;border:2px solid #f44336}
.acd-verdict-human{background:#e8f5e9;border:2px solid #4caf50}
.acd-verdict-mixed{background:#fff8e1;border:2px solid #ff9800}
.acd-verdict-icon{font-size:40px}
.acd-verdict-text{font-size:22px;font-weight:800;color:#1a1a2e}
.acd-verdict-sub{font-size:13px;color:#666}
/* Meter */
.acd-meter-wrap{margin-bottom:20px}
.acd-meter-labels{display:flex;justify-content:space-between;font-size:12px;color:#888;margin-bottom:6px}
.acd-meter-bar{position:relative;height:20px;background:#e8f5e9;border-radius:10px;overflow:hidden;margin-bottom:6px}
.acd-meter-fill{height:100%;background:#f44336;border-radius:10px;transition:width 0.8s ease}
.acd-meter-needle{position:absolute;top:0;height:100%;width:3px;background:#1a1a2e;transform:translateX(-50%);transition:left 0.8s ease}
.acd-meter-pct{display:flex;justify-content:space-between;font-size:13px;font-weight:600}
/* Signals */
.acd-signals h4,.acd-sentences h4{font-size:13px;font-weight:600;color:#555;margin-bottom:10px}
.acd-signals-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:16px}
.acd-signal-card{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;font-size:13px}
.acd-signal-card strong{display:block;font-size:12px}
.acd-signal-card small{display:block;color:#888;font-size:11px}
.acd-signal-ai{background:#ffebee;border:1px solid #ffcdd2}
.acd-signal-human{background:#e8f5e9;border:1px solid #c8e6c9}
.acd-signal-icon{font-size:20px;flex-shrink:0}
/* Sentences */
.acd-sentence-analysis{display:flex;flex-direction:column;gap:8px}
.acd-sent-item{display:flex;align-items:center;gap:8px}
.acd-sent-text{flex:1;font-size:12px;padding:8px 10px;border-radius:8px;color:#333;line-height:1.5}
.acd-sent-badge{font-size:11px;font-weight:600;white-space:nowrap;color:#555}
/* Limit Banner */
.acd-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}
.acd-limit-banner h3{font-size:22px;font-weight:700;margin-bottom:8px}
.acd-limit-banner p{color:#666;margin-bottom:32px}
.acd-pricing-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;max-width:560px;margin:0 auto}
@media(max-width:520px){.acd-pricing-grid{grid-template-columns:1fr}}
.acd-pricing-card{background:#fff;border:1.5px solid #e8e8f0;border-radius:16px;padding:24px;position:relative}
.acd-pricing-popular{border-color:#6c63ff}
.acd-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}
.acd-pricing-name{font-size:13px;font-weight:600;color:#888;margin-bottom:8px;text-transform:uppercase}
.acd-pricing-price{font-size:36px;font-weight:800;color:#1a1a2e;margin-bottom:16px}
.acd-pricing-price span{font-size:14px;font-weight:400;color:#888}
.acd-pricing-features{list-style:none;margin-bottom:20px;text-align:left}
.acd-pricing-features li{font-size:13px;color:#555;padding:4px 0}
/* Modal */
.acd-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}
.acd-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)}
.acd-modal-close{position:absolute;top:16px;right:18px;background:none;border:none;font-size:22px;color:#aaa;cursor:pointer}
.acd-modal-title{font-size:22px;font-weight:700;color:#1a1a2e;margin-bottom:20px}
.acd-form-group{margin-bottom:16px}
.acd-form-group label{display:block;font-size:13px;font-weight:600;color:#555;margin-bottom:6px}
.acd-input{width:100%;padding:11px 14px;border:1.5px solid #e0e0e8;border-radius:10px;font-family:inherit;font-size:14px;color:#333;outline:none}
.acd-input:focus{border-color:#6c63ff}
.acd-form-error{background:#fff5f5;border:1px solid #ffd0d0;color:#c0392b;font-size:13px;padding:10px 14px;border-radius:8px;margin-bottom:14px}
.acd-form-switch{text-align:center;font-size:13px;color:#888;margin-top:16px}
.acd-form-switch a{color:#6c63ff;text-decoration:none;font-weight:600}
.acd-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}