:root{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans Arabic",sans-serif;color:#14202a;background:#fff;--green:#178e61;--mint:#f1f8f5;--muted:#667582;--border:#e6eeeb}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:#fff}.app-shell{max-width:640px;margin:0 auto;padding:calc(env(safe-area-inset-top) + 24px) 20px calc(98px + env(safe-area-inset-bottom))}.app-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.app-header>div{display:flex;align-items:center;gap:14px}.app-header h1{font-size:30px;letter-spacing:-1px;margin:0}.status{display:flex;gap:6px;align-items:center;font-size:14px;color:var(--green)}.status span:first-child{width:8px;height:8px;background:#29a36c;border-radius:99px}.icon-button{width:44px;height:44px;border:0;background:transparent;color:#1d2b36;padding:8px}.icon-button svg{fill:none;stroke:currentColor;stroke-width:1.8}.language-switch{width:100%;height:46px;margin-bottom:14px;border:1px solid var(--border);border-radius:14px;background:#fff;color:#23333c;font-size:15px;font-weight:650;display:flex;align-items:center;justify-content:center;gap:20px}.language-switch span:nth-child(2){color:var(--green);font-size:20px}.input-panel,.result-panel{background:var(--mint);border-radius:20px;padding:20px}.panel-heading{display:flex;justify-content:space-between;align-items:center;color:var(--green);font-weight:650;font-size:16px}.detect-state,.engine-label{font-size:12px;color:#718078;font-weight:500}textarea{display:block;width:100%;height:165px;resize:none;border:0;outline:0;background:transparent;padding:24px 0 12px;color:#14202a;font-size:22px;line-height:1.8;font-family:"Noto Naskh Arabic","Noto Sans Arabic",sans-serif}textarea::placeholder{color:#a6b1ad}.panel-actions,.result-actions{display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:14px}.panel-actions>div,.result-actions{gap:12px}.text-button,.section-title button,.history-toolbar 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h2,.history-toolbar h2{font-size:20px;margin:0 0 12px}.history-list{display:grid;gap:10px}.history-row{border:1px solid var(--border);border-radius:16px;padding:14px 16px;background:#fff;cursor:pointer}.history-row .source{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:16px}.history-row .target{margin-top:7px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:14px}.empty-history{padding:34px 18px;text-align:center;color:#89958f;background:#f7faf9;border-radius:16px}.bottom-nav{position:fixed;left:0;right:0;bottom:0;background:rgba(255,255,255,.94);border-top:1px solid var(--border);padding:10px max(20px,env(safe-area-inset-right)) calc(8px + env(safe-area-inset-bottom)) max(20px,env(safe-area-inset-left));display:flex;justify-content:space-around;backdrop-filter:blur(14px)}.nav-item{border:0;background:transparent;color:#75828a;font-size:12px;display:grid;gap:4px;justify-items:center;min-width:90px}.nav-item.active{color:var(--green);font-weight:700}.nav-icon{font-size:21px;font-weight:700}.history-toolbar{margin-bottom:18px}.history-toolbar h2{font-size:25px}.hidden{display:none!important}dialog{border:0;border-radius:24px;padding:0;width:min(92vw,520px);box-shadow:0 24px 80px rgba(12,35,28,.25)}dialog::backdrop{background:rgba(13,27,23,.45);backdrop-filter:blur(2px)}.settings-form{padding:22px}.dialog-title{display:flex;justify-content:space-between;align-items:center}.dialog-title h2{margin:0;font-size:23px}.dialog-title button{border:0;background:transparent;font-size:28px;color:#667}.settings-form p{color:var(--muted);line-height:1.6;font-size:14px}.settings-form label{display:grid;gap:7px;margin-top:16px;font-size:14px;font-weight:650}.settings-form input,.settings-form select{height:46px;border:1px solid #d8e2de;border-radius:12px;padding:0 12px;font:inherit;background:#fff}.save-button{width:100%;height:50px;margin-top:22px;border:0;border-radius:14px;background:var(--green);color:#fff;font-size:17px;font-weight:700}.install-help{display:grid;gap:5px;margin-top:18px;padding:14px;border-radius:12px;background:var(--mint);font-size:13px;line-height:1.45}.toast{position:fixed;left:50%;bottom:calc(95px + env(safe-area-inset-bottom));transform:translate(-50%,14px);background:#14231e;color:#fff;padding:10px 16px;border-radius:99px;font-size:14px;opacity:0;pointer-events:none;transition:.2s}.toast.show{opacity:1;transform:translate(-50%,0)}@media(min-width:700px){body{background:#edf4f1}.app-shell{background:#fff;min-height:100vh}.bottom-nav{max-width:640px;margin:auto}}