:root{color:#0f172a;background:#f8fafc;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;--bg: #f8fafc;--panel: #ffffff;--panel-soft: #f1f5f9;--ink: #111827;--border: #dbe3ef;--border-strong: #cbd5e1;--text: #0f172a;--muted: #64748b;--blue: #2563eb;--blue-soft: #e8f1ff;--green: #059669;--green-soft: #e7f8ef;--amber: #d97706;--danger: #b42318;--shadow: 0 18px 42px rgba(15, 23, 42, .08);--soft-shadow: 0 10px 24px rgba(15, 23, 42, .06)}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:var(--bg)}button,input,textarea,select{font:inherit}button{cursor:pointer}h1,p{margin:0}.spin{animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.gate-screen{min-height:100vh;display:grid;place-items:center;padding:24px}.gate-panel{width:min(100%,460px);padding:28px;border:1px solid var(--border);border-radius:8px;background:var(--panel);box-shadow:var(--shadow)}.brand-row,.app-title,.top-actions,.library-card,.filter-title,.collection-pills,.status-card,.rail-note,.rail-label,.chat-topbar,.chat-actions,.pane-title,.message-row,.composer-actions,.progress-card,.answer-header,.result-top,.result-meta,.result-list-header,.evidence-header,.document-bar,.page-strip,.pdf-toolbar,.evidence-tabs,.download-button{display:flex;align-items:center}.brand-row{gap:12px;margin-bottom:28px;color:var(--muted)}.brand-mark{width:40px;height:40px;display:grid;place-items:center;border-radius:8px;color:#fff;background:var(--blue);flex:0 0 auto}.gate-panel h1{font-size:2rem;letter-spacing:0;margin-bottom:8px}.gate-panel p{color:var(--muted);line-height:1.5}.gate-form{margin-top:24px}label{display:block;margin-bottom:8px;color:var(--text);font-weight:720;font-size:.92rem}input,textarea{width:100%;border:1px solid var(--border);border-radius:8px;color:var(--text);background:#fff;outline:none}select{width:100%;min-height:40px;margin-top:8px;padding:0 34px 0 12px;border:1px solid var(--border);border-radius:8px;color:#0f172a;background:#fff;outline:none}select:focus{border-color:var(--blue);box-shadow:0 0 0 4px #2563eb1f}input{height:48px;padding:0 14px}textarea{min-height:106px;padding:14px 14px 14px 44px;line-height:1.5;resize:vertical}input:focus,textarea:focus{border-color:var(--blue);box-shadow:0 0 0 4px #2563eb1f}button{border:0;border-radius:8px;min-height:40px;padding:0 14px;background:var(--blue);color:#fff;font-weight:760}button:disabled{cursor:not-allowed;opacity:.62}.gate-form button{width:100%;margin-top:16px;display:flex;justify-content:center;align-items:center;gap:8px}.error-message{margin-top:10px;color:var(--danger);font-size:.9rem}.app-frame{min-height:100vh;display:flex;flex-direction:column;background:#f8fafc}.global-header{height:60px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 14px;border-bottom:1px solid var(--border);background:#fffffff5}.app-title{gap:14px;min-width:0}.app-title strong{font-size:1.1rem;color:#0f172a;white-space:nowrap}.app-title span:last-child{color:var(--blue);font-weight:760;white-space:nowrap}.top-actions{gap:8px;color:#0f172a}.top-actions button,.chat-actions button,.filter-title button,.result-list-header button,.icon-rail button,.icon-button.visible,.ghost-icon,.pdf-toolbar button,.evidence-tabs button{min-height:34px;padding:0 9px;border:0;background:transparent;color:#0f172a;display:inline-flex;align-items:center;gap:7px;font-weight:650}.top-actions button:hover,.top-actions button.active,.chat-actions button:hover,.icon-rail button:hover,.icon-button.visible:hover,.icon-button.visible.active,.pdf-toolbar button:hover{background:var(--panel-soft)}.top-actions button.active{color:var(--blue)}.user-chip{width:34px;height:34px;display:grid;place-items:center;position:relative;border-radius:999px;color:#fff;background:var(--blue);font-weight:820}.user-chip span{position:absolute;right:-1px;bottom:-1px;width:10px;height:10px;border:2px solid white;border-radius:999px;background:var(--green)}.chat-shell{flex:1;display:grid;grid-template-columns:68px 296px minmax(520px,1fr) 536px;gap:0;background:#f8fafc}.source-rail,.conversation-pane,.evidence-rail{min-height:calc(100vh - 60px);border-right:1px solid var(--border);border-radius:0;background:#fffffff5;box-shadow:none}.icon-rail{min-height:calc(100vh - 60px);display:flex;flex-direction:column;align-items:center;gap:14px;padding:18px 10px 12px;border-right:1px solid var(--border);background:#fff}.icon-rail button{width:40px;height:40px;justify-content:center;padding:0;color:#0f172a}.icon-rail button.active{color:var(--blue);background:var(--blue-soft)}.icon-rail-bottom{margin-top:auto;display:grid;gap:12px}.source-rail{padding:0;display:flex;flex-direction:column;gap:0;overflow:auto}.library-card{gap:12px;min-height:76px;padding:14px 18px;border-bottom:1px solid var(--border)}.library-card>svg{color:#111827;flex:0 0 auto}.library-card div{min-width:0;display:grid;gap:4px}.library-card strong{overflow-wrap:anywhere}.library-card span{color:var(--muted);font-size:.86rem}.library-card>svg:last-child{margin-left:auto;color:var(--muted)}.rail-heading p,.chat-topbar span,.evidence-header span,.answer-header span,.result-list-header span,.message-bubble span{color:var(--muted);font-size:.76rem;font-weight:760;text-transform:uppercase;letter-spacing:.04em}.filter-title{justify-content:space-between;padding:20px 18px 12px;color:#0f172a;text-transform:uppercase;font-size:.82rem;font-weight:760}.filter-title button,.result-list-header button{color:var(--blue);min-height:auto;padding:0}.collection-pills{flex-wrap:wrap;gap:10px;padding:0 18px 18px;border-bottom:1px solid var(--border)}.collection-pills .rail-label{width:100%;justify-content:space-between}.rail-label{gap:7px;color:#0f172a;font-size:.88rem;font-weight:760}.collection-pill{min-height:30px;padding:0 10px;border:1px solid transparent;border-radius:999px;color:#0f172a;background:#f1f5f9;display:inline-flex;align-items:center;gap:7px}.collection-pill.quran{background:#dff6ec;color:#075f47}.collection-pill.hadith{background:#eaf2ff;color:#1d4ed8}.collection-pill.tafseer{background:#efe9ff;color:#5b21b6}.collection-pill.active{box-shadow:inset 0 0 0 1px currentColor}.filter-stack{display:grid;gap:14px;padding:18px}.filter-stack label,.document-types>.rail-label{margin:0;color:#0f172a;font-size:.88rem;font-weight:760}.filter-stack label>span,.document-types .rail-label span{margin-left:4px;color:#8a99ad;font-size:.76rem}.document-types{display:grid;gap:10px;padding:0 18px 18px;border-bottom:1px solid var(--border)}.document-types label{display:grid;grid-template-columns:18px 1fr auto;align-items:center;gap:8px;margin:0;color:#0f172a;font-weight:560;font-size:.9rem}.document-types input{width:14px;height:14px}.document-types strong{min-width:24px;height:22px;display:grid;place-items:center;border-radius:999px;color:#64748b;background:#eef2f7;font-size:.78rem}.semantic-filter{display:grid;gap:12px;padding:18px}.semantic-filter strong{color:#0f172a}.score-row,.range-labels{display:flex;justify-content:space-between;color:#334155;font-size:.88rem}.score-row em{min-width:48px;height:30px;display:grid;place-items:center;border:1px solid var(--border);border-radius:8px;color:#334155;font-style:normal}.semantic-filter input{accent-color:var(--blue)}.rail-note{margin-top:auto;justify-content:space-between;gap:8px;padding:12px 16px;border-top:1px solid var(--border);color:var(--muted);font-size:.82rem}.rail-note strong{color:var(--green)}.conversation-pane{min-width:0;display:flex;flex-direction:column;padding:0 20px 18px;overflow:auto;background:#fbfcfe}.chat-topbar{justify-content:space-between;gap:14px;min-height:60px;margin:0 -20px;padding:0 20px;border-bottom:1px solid var(--border);background:#fff}.pane-title{gap:10px;color:#0f172a}.pane-title h2,.pane-title strong{margin:0;font-size:1rem}.chat-actions{gap:8px}.chat-actions button:first-child{color:var(--blue)}.chat-thread{display:grid;gap:12px;padding:14px 0}.message-row{gap:10px;align-items:flex-start}.message-row.user{justify-content:flex-end}.message-avatar{width:34px;height:34px;display:grid;place-items:center;border-radius:999px;color:#fff;background:var(--blue)}.message-bubble{width:min(100%,720px);padding:14px 16px;border:1px solid var(--border);border-radius:8px;background:#fff;box-shadow:0 8px 18px #0f172a0a}.message-row.user .message-bubble{width:min(82%,620px);border-color:#bfdbfe;color:#0b3b8c;background:linear-gradient(180deg,#eff6ff,#e8f1ff)}.message-bubble p{color:var(--text);line-height:1.55;white-space:pre-wrap}.message-bubble time{display:block;margin-top:8px;color:#64748b;font-size:.8rem;text-align:right}.answer-citations{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.answer-citations span{min-height:30px;display:inline-flex;align-items:center;gap:7px;padding:0 9px;border:1px solid var(--border);border-radius:8px;color:#334155;background:#f8fafc;text-transform:none;letter-spacing:0}.composer{order:10;margin-top:auto;padding:10px 12px 8px;border:1px solid var(--border);border-radius:8px;background:#fff;box-shadow:none}.composer-box{position:relative}.composer label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}.composer textarea{min-height:40px;padding:10px 6px;border:0;resize:none}.composer textarea:focus{box-shadow:none}.composer-actions{justify-content:space-between;gap:12px;margin-top:4px;color:var(--muted);font-size:.82rem}.composer-actions div{display:flex;align-items:center;gap:8px}.composer-actions button,.download-button,.progress-card{gap:8px}.composer-actions button[type=submit]{width:42px;height:42px;min-height:42px;padding:0;display:grid;place-items:center}.ghost-icon{width:34px;height:34px;padding:0;justify-content:center;color:#334155;background:transparent}.progress-card,.answer-card,.result-card,.empty-state{border:1px solid var(--border);border-radius:8px;background:var(--panel)}.progress-card{justify-content:space-between;margin:4px 0 12px;padding:10px 12px;color:var(--blue)}.utility-panel{margin:14px 0;padding:14px;border:1px solid var(--border);border-radius:8px;background:#fff}.utility-header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px;text-transform:capitalize}.utility-header button{min-height:32px;display:inline-flex;align-items:center;gap:6px;color:#334155;background:var(--panel-soft)}.utility-list{display:grid;gap:8px}.utility-list button{width:100%;min-height:58px;display:grid;grid-template-columns:26px 1fr;align-items:center;gap:10px;padding:10px;color:#0f172a;text-align:left;background:#f8fafc;border:1px solid var(--border)}.utility-list span{display:grid;gap:4px;min-width:0}.utility-list em{color:var(--muted);font-size:.82rem;font-style:normal;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.settings-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.settings-grid label{display:grid;gap:8px;margin:0}.settings-grid label>span{color:var(--muted);font-size:.84rem}.settings-grid button{min-height:40px;border:1px solid var(--border);color:#0f172a;background:#fff}.settings-grid input{height:40px}.answer-card{padding:16px;background:linear-gradient(180deg,#fff,#f8fbff)}.answer-header{justify-content:space-between;margin-bottom:12px}.answer-header strong{color:var(--green);font-size:.86rem}.answer-card p{color:var(--text);line-height:1.65;white-space:pre-wrap}.warnings{margin-top:12px;color:var(--amber);font-size:.9rem;line-height:1.45}.result-list{display:grid;gap:10px;margin:0 0 18px}.result-list-header{justify-content:space-between;padding:0}.result-list-header span{color:#0f172a;text-transform:none;letter-spacing:0;font-size:.9rem}.result-list-header strong{margin-left:5px;color:#64748b}.result-card{width:100%;display:grid;grid-template-columns:34px minmax(220px,1fr) minmax(170px,.58fr) 94px;gap:14px;padding:12px;color:var(--text);text-align:left;background:#fff;align-items:stretch;border-left:4px solid #60a5fa}.result-card.selected{border-color:var(--border);border-left-color:var(--green);box-shadow:0 0 0 2px #0596691a}.result-index{width:28px;height:36px;display:grid;place-items:center;border-radius:8px;color:var(--blue);background:var(--blue-soft);font-size:.78rem;font-weight:820;align-self:start}.result-card.selected .result-index{color:var(--green);background:var(--green-soft)}.result-body{min-width:0;display:grid;gap:8px}.result-top{justify-content:space-between;gap:12px}.result-top strong{overflow-wrap:anywhere}.result-top em{flex:0 0 auto;padding:4px 8px;border-radius:999px;color:var(--green);background:var(--green-soft);font-size:.78rem;font-style:normal;font-weight:780}.result-card p{color:#334155;line-height:1.5;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.result-meta{justify-content:space-between;gap:10px;color:var(--muted);font-size:.82rem}.match-column{display:grid;align-content:start;gap:7px;padding-left:14px;border-left:1px solid var(--border);color:#334155;font-size:.84rem;line-height:1.35}.match-column strong{color:#0f172a;font-size:.82rem}.page-column{display:grid;gap:8px;align-content:center;justify-items:end}.page-column span{padding:5px 9px;border-radius:8px;color:#334155;background:#eef2f7;font-size:.82rem}.page-column em{min-height:30px;display:inline-flex;align-items:center;gap:6px;padding:0 8px;border:1px solid #bfdbfe;border-radius:8px;color:var(--blue);background:#f8fbff;font-style:normal;font-size:.8rem}.page-column em.saved{color:#075f47;border-color:#b7ebce;background:#ecfdf3}.empty-state{min-height:120px;display:grid;place-items:center;gap:8px;color:var(--muted);padding:20px;text-align:center}.evidence-rail{padding:0 20px 18px;display:flex;flex-direction:column;gap:12px;overflow:auto;border-right:0}.evidence-header{justify-content:space-between;gap:12px}.evidence-header{min-height:60px;margin:0 -20px;padding:0 20px;border-bottom:1px solid var(--border);background:#fff}.evidence-actions{display:flex;gap:8px}.icon-button{width:36px;height:36px;padding:0;display:none;place-items:center;color:var(--text);background:var(--panel-soft)}.icon-button.visible{display:grid}.document-bar{justify-content:space-between;gap:12px;padding-top:10px}.document-bar strong{overflow-wrap:anywhere}.document-bar button{flex:0 0 auto;min-height:34px;display:flex;align-items:center;gap:8px;border:1px solid var(--green);background:#fff;color:#0f172a}.page-strip{gap:9px;overflow-x:auto;padding-bottom:2px}.page-strip strong{margin-right:4px}.page-strip button{min-height:30px;padding:0 11px;border:1px solid var(--border);background:#fff;color:#0f172a}.page-strip button.active{color:#fff;background:var(--green);border-color:var(--green)}.pdf-toolbar{gap:8px;min-height:46px;padding:0 8px;border:1px solid var(--border);border-radius:8px 8px 0 0;background:#fbfcfe}.pdf-toolbar span{width:1px;height:24px;background:var(--border)}.pdf-toolbar strong{min-width:54px;text-align:center;font-size:.88rem}.page-preview{min-height:500px;border:1px solid var(--border-strong);border-top:0;border-radius:0 0 8px 8px;background:linear-gradient(180deg,#e2e8f0,#f8fafc);overflow:hidden;box-shadow:inset 0 0 0 1px #ffffff80}.page-preview img{width:100%;height:100%;object-fit:contain;display:block;background:#fff}.page-preview img{transform-origin:center top;transition:transform .15s ease}.page-preview.fullscreen{position:fixed;inset:72px 28px 28px;z-index:20;border:1px solid var(--border-strong);border-radius:8px;background:#eef2f7;box-shadow:var(--shadow)}.page-fallback{height:100%;min-height:420px;display:grid;place-items:center;align-content:center;gap:12px;padding:18px;color:var(--muted);text-align:center}.page-fallback p{max-height:220px;overflow:auto;color:#334155;line-height:1.55;text-align:left}.evidence-tabs{gap:24px;min-height:42px;border-bottom:1px solid var(--border)}.evidence-tabs button{position:relative;min-height:42px;padding:0;color:#52617a}.evidence-tabs button.active{color:var(--green)}.evidence-tabs button.active:after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--green)}.evidence-tabs span{min-width:20px;height:20px;display:inline-grid;place-items:center;border-radius:999px;background:#eef2f7;font-size:.75rem}.metadata-grid{display:grid;grid-template-columns:1fr 1fr 70px 70px;gap:16px 24px;font-size:.82rem}.metadata-grid div{display:grid;gap:6px;min-width:0}.metadata-grid span{color:#718096}.metadata-grid strong{color:#0f172a;overflow-wrap:anywhere}.tab-panel{display:grid;gap:10px;padding:12px;border:1px solid var(--border);border-radius:8px;background:#fff;color:#334155;line-height:1.5}.tab-panel strong{color:#0f172a}@media(max-width:1050px){.top-actions button span,.top-actions button{font-size:0;gap:0}.top-actions button svg{margin:0}.chat-shell{grid-template-columns:58px 260px minmax(0,1fr)}.evidence-rail{position:fixed;left:0;right:0;bottom:0;z-index:10;min-height:0;max-height:82vh;border-radius:8px 8px 0 0;transform:translateY(105%);transition:transform .18s ease;box-shadow:var(--shadow)}.evidence-rail.open{transform:translateY(0)}.icon-button{display:grid}.document-bar,.metadata-grid{grid-template-columns:1fr}.page-preview,.page-fallback{min-height:300px}.result-card{grid-template-columns:34px minmax(0,1fr)}.match-column,.page-column{display:none}}@media(max-width:760px){.global-header{height:auto;min-height:60px;align-items:flex-start;flex-direction:column;padding:10px}.top-actions{width:100%;justify-content:space-between}.chat-shell{display:block}.icon-rail{min-height:0;flex-direction:row;justify-content:space-between;padding:8px 10px;border-bottom:1px solid var(--border)}.icon-rail-bottom{margin:0;display:flex}.source-rail{min-height:auto;max-height:360px;border-bottom:1px solid var(--border)}.collection-pills{padding-bottom:12px}.conversation-pane{min-height:calc(100vh - 180px)}.chat-topbar{margin:0 -20px}.message-row.user .message-bubble{width:min(100%,620px)}.composer-actions{align-items:stretch;flex-direction:column}.composer-actions div{justify-content:flex-end}.document-bar{align-items:stretch;flex-direction:column}.metadata-grid{grid-template-columns:1fr 1fr}}