Update index.html

index.html

@@ -6,60 +6,96 @@
 <title>Chat CVNSS4.0</title>
 <style>
   :root{
-    /* Light theme */
+    /* Giao diện sáng, tối giản */
     --bg:#f7f9fc; --card:#ffffff; --text:#1f2937; --muted:#6b7280;
     --primary:#1a73e8; --danger:#d93025; --accent:#ffeb3b;
-    /* CẮT phần đầu tlk.io (icon mây + thanh xanh) — tăng/giảm nếu cần */
-    --cut-top: 220px;
-    /* Che cột phải */
-    --mask-right: clamp(220px, 24vw, 300px);
+
+    /* Mặt nạ (mask) để ẩn phần thừa của tlk.io */
+    --header-mask: 260px;                     /* dải trắng che icon mây + thanh xanh tiêu đề */
+    --mask-right: clamp(220px, 24vw, 300px);  /* dải trắng che cột phải */
   }
+
   *{box-sizing:border-box}
-  body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--text);display:flex;flex-direction:column;min-height:100vh}
-  header{padding:14px 16px;text-align:center;font-weight:700;background:#fff;border-bottom:1px solid #e5e7eb}
-  .card{width:min(980px,94vw);margin:22px auto;background:#fff;border:1px solid #e5e7eb;border-radius:12px;box-shadow:0 6px 18px rgba(0,0,0,.06);padding:18px}
-  h2{margin:0 0 6px} .muted{color:var(--muted)}
-  .row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
-  input[type=text]{flex:1 1 260px;padding:12px 14px;font-size:16px;border:1px solid #d1d5db;border-radius:10px}
-  input[type=text]:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(26,115,232,.15)}
-  button{padding:12px 16px;border:0;border-radius:10px;font-weight:700;cursor:pointer}
-  .btn-red{background:#d93025;color:#ffeb3b}
-  .btn-ghost{background:#eef2ff;color:#1e3a8a}
-  .btn-secondary{background:#374151;color:#fff}
+  body{
+    margin:0; font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
+    background:var(--bg); color:var(--text); display:flex; flex-direction:column; min-height:100vh;
+  }
+  header{
+    padding:14px 16px; text-align:center; font-weight:700;
+    background:#fff; border-bottom:1px solid #e5e7eb;
+  }
+
+  .card{
+    width:min(980px,94vw); margin:22px auto; background:var(--card);
+    border:1px solid #e5e7eb; border-radius:12px; box-shadow:0 6px 18px rgba(0,0,0,.06);
+    padding:18px;
+  }
+  h2{margin:0 0 6px}
+  .muted{color:var(--muted)}
+  .row{display:flex; gap:10px; flex-wrap:wrap; align-items:center}
+
+  input[type=text]{
+    flex:1 1 260px; padding:12px 14px; font-size:16px;
+    border:1px solid #d1d5db; border-radius:10px;
+  }
+  input[type=text]:focus{outline:none; border-color:var(--primary); box-shadow:0 0 0 3px rgba(26,115,232,.15)}
+
+  button{padding:12px 16px; border:0; border-radius:10px; font-weight:700; cursor:pointer}
+  .btn-red{background:var(--danger); color:var(--accent)}
+  .btn-ghost{background:#eef2ff; color:#1e3a8a}
+  .btn-secondary{background:#374151; color:#fff}
   .mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
 
-  /* Status gọn */
-  .status{display:none;align-items:center;gap:10px;padding:10px 12px;border:1px dashed #d1d5db;border-radius:10px;margin-bottom:10px;background:#f9fafb}
-  .me-pill{display:inline-flex;align-items:center;gap:6px;background:#fff3cd;color:#7a5b00;border:1px solid #ffe8a1;padding:6px 12px;border-radius:999px;font-weight:800}
-  .room-pill{display:inline-block;background:#e8f0fe;color:#174ea6;padding:6px 10px;border-radius:999px}
+  /* Trạng thái gọn: chỉ tên + phòng */
+  .status{
+    display:none; align-items:center; gap:10px;
+    padding:10px 12px; border:1px dashed #d1d5db; border-radius:10px; margin-bottom:10px; background:#f9fafb;
+  }
+  .me-pill{
+    display:inline-flex; align-items:center; gap:6px;
+    background:#fff3cd; color:#7a5b00; border:1px solid #ffe8a1; padding:6px 12px; border-radius:999px; font-weight:800;
+  }
+  .room-pill{display:inline-block; background:#e8f0fe; color:#174ea6; padding:6px 10px; border-radius:999px}
 
-  /* Khung chat: CẮT phần đầu an toàn (không chặn click/nhập) */
+  /* Khung chat */
   .chat-wrap{
     position:relative; border:1px solid #e5e7eb; border-radius:10px; overflow:hidden; background:#fff;
-    padding-top: var(--cut-top);              /* chừa chỗ cho phần bị đẩy ra */
   }
-  #chatFrame{
-    display:block; width:100%; height:72vh; min-height:640px; border:0; background:#fff;
-    transform: translateY(calc(-1 * var(--cut-top))); /* đẩy phần đầu ra ngoài khung nhìn */
+  iframe#chatFrame{width:100%; height:72vh; min-height:640px; border:0; background:#fff}
+
+  /* Mask TRẮNG – không cản bấm/nhập (pointer-events:none) */
+  .mask-header{
+    position:absolute; left:0; right:var(--mask-right); top:0; height:var(--header-mask);
+    background:#fff; pointer-events:none; user-select:none; z-index:5;
+    box-shadow:0 8px 10px -10px rgba(0,0,0,.12);
   }
-  /* Che cột phải – không chặn click (pointer-events:none) */
   .mask-right{
     position:absolute; top:0; right:0; bottom:0; width:var(--mask-right);
-    background:#fff; pointer-events:none; box-shadow:-8px 0 10px -10px rgba(0,0,0,.12); z-index:2;
+    background:#fff; pointer-events:none; user-select:none; z-index:4;
+    box-shadow:-8px 0 10px -10px rgba(0,0,0,.12);
   }
 
   /* Link phòng tự ẩn */
-  .links{display:none;gap:8px;align-items:center;flex-wrap:wrap;margin-top:10px}
-  .link-badge{background:#f3f4f6;border:1px solid #e5e7eb;color:#111827;padding:6px 8px;border-radius:8px}
+  .links{display:none; gap:8px; align-items:center; flex-wrap:wrap; margin-top:10px}
+  .link-badge{background:#f3f4f6; border:1px solid #e5e7eb; color:#111827; padding:6px 8px; border-radius:8px}
 
   /* Fallback khi iframe bị chặn */
-  .error-box{display:none;gap:10px;align-items:center;justify-content:space-between;padding:12px;border:1px solid #fecaca;background:#fef2f2;border-radius:10px;margin-top:10px}
+  .error-box{
+    display:none; gap:10px; align-items:center; justify-content:space-between;
+    padding:12px; border:1px solid #fecaca; background:#fef2f2; border-radius:10px; margin-top:10px;
+  }
   .error-text{color:#991b1b}
 
-  .toast{position:fixed;left:50%;bottom:22px;transform:translateX(-50%);background:#111827;color:#f9fafb;border:1px solid #374151;padding:10px 14px;border-radius:10px;font-size:14px;opacity:0;pointer-events:none;transition:opacity .2s}
+  .toast{
+    position:fixed; left:50%; bottom:22px; transform:translateX(-50%);
+    background:#111827; color:#f9fafb; border:1px solid #374151;
+    padding:10px 14px; border-radius:10px; font-size:14px; opacity:0; pointer-events:none; transition:opacity .2s;
+  }
   .toast.show{opacity:1}
-  footer{margin-top:auto;text-align:center;color:#6b7280;font-size:13px;padding:16px}
-  @media (max-width:820px){ :root{ --mask-right:0px } }
+
+  footer{margin-top:auto; text-align:center; color:#6b7280; font-size:13px; padding:16px}
+
+  @media (max-width:820px){ :root{ --mask-right:0px } } /* mobile thường không có panel phải */
 </style>
 </head>
 <body>
@@ -67,18 +103,15 @@
 
 <section id="login" class="card">
   <h2>Tham gia phòng chat</h2>
-  <p class="muted">Nhập tên → <b>Vào Chat</b> → *(tuỳ chọn)* <b>✨ Tạo phòng bí mật</b>.</p>
-
+  <p class="muted">Nhập tên → <b>Vào Chat</b> (nút đỏ) → *(tuỳ chọn)* <b>✨ Tạo phòng bí mật</b> để mời người khác. Nếu không cần “✨ Tạo phòng bí mật”, hãy bỏ qua bước này.</p>
   <div class="row" style="margin-top:8px">
     <input id="nickname" type="text" placeholder="Nhập tên của bạn…" autocomplete="name">
     <button id="joinBtn" class="btn-red">Vào Chat</button>
   </div>
-
   <div class="row" style="margin-top:10px">
     <button id="newRoomBtn" class="btn-ghost">✨ Tạo phòng bí mật</button>
     <span id="roomHint" class="muted"></span>
   </div>
-
   <div id="linkArea" class="links" aria-live="polite">
     <span>🔗 Link phòng:</span>
     <span id="roomUrl" class="link-badge mono"></span>
@@ -93,7 +126,10 @@
   </div>
 
   <div class="chat-wrap">
+    <!-- Mask trắng: che icon mây + thanh xanh + panel phải; KHÔNG cản click/nhập -->
+    <div class="mask-header" aria-hidden="true"></div>
     <div class="mask-right" aria-hidden="true"></div>
+
     <iframe id="chatFrame" title="tlk.io chat" referrerpolicy="no-referrer"
             allow="clipboard-read; clipboard-write"></iframe>
   </div>
@@ -109,61 +145,75 @@
 
 <script>
 (() => {
-  const qs = new URLSearchParams(location.search);
-  let room = (qs.get("room") || "cvnss4-0").trim().toLowerCase();
+  // --- State ---
+  const qs   = new URLSearchParams(location.search);
+  let room   = (qs.get("room") || "cvnss4-0").trim().toLowerCase();
   const base = `${location.origin}${location.pathname}`;
 
+  // Cho phép tinh chỉnh nhanh qua URL nếu cần: &hdr=260 &maskr=260
+  const hdr = parseInt(qs.get("hdr"),10);
+  if(!isNaN(hdr)) document.documentElement.style.setProperty('--header-mask', hdr+'px');
+  const maskr = parseInt(qs.get("maskr"),10);
+  if(!isNaN(maskr)) document.documentElement.style.setProperty('--mask-right', maskr+'px');
+
   const $ = id => document.getElementById(id);
   const els = {
-    login:$("login"), box:$("chatBox"), frame:$("chatFrame"),
-    name:$("nickname"), join:$("joinBtn"), newRoom:$("newRoomBtn"),
-    linkArea:$("linkArea"), roomUrl:$("roomUrl"), copy:$("copyBtn"),
-    hint:$("roomHint"), me:$("meName"), pill:$("roomPill"),
-    status:$("statusBar"), toast:$("toast"), err:$("errorBox"), openNew:$("openNew")
+    login: $("login"), box: $("chatBox"), frame: $("chatFrame"),
+    name: $("nickname"), join: $("joinBtn"), newRoom: $("newRoomBtn"),
+    linkArea: $("linkArea"), roomUrl: $("roomUrl"), copy: $("copyBtn"),
+    hint: $("roomHint"), me: $("meName"), pill: $("roomPill"),
+    status: $("statusBar"), toast: $("toast"), err: $("errorBox"), openNew: $("openNew"),
   };
 
-  const toast = m=>{ els.toast.textContent=m; els.toast.classList.add("show"); setTimeout(()=>els.toast.classList.remove("show"),1400); };
-  const getName = ()=> (els.name.value || localStorage.getItem("cvnss4_name") || "Guest").trim() || "Guest";
-  const setName = n=>{ els.me.textContent=n; localStorage.setItem("cvnss4_name", n); };
-  const syncRoomUI = ()=>{ els.pill.textContent=room; els.hint.textContent=`(đang ở phòng ${room})`; };
-  const tlkUrl = n=> `https://tlk.io/${encodeURIComponent(room)}?nickname=${encodeURIComponent(n)}#embed`;
+  const toast = m => { els.toast.textContent = m; els.toast.classList.add("show"); setTimeout(()=>els.toast.classList.remove("show"), 1400); };
+  const getName = () => (els.name.value || localStorage.getItem("cvnss4_name") || "Guest").trim() || "Guest";
+  const setName = n => { els.me.textContent = n; localStorage.setItem("cvnss4_name", n); };
+  const syncRoomUI = () => { els.pill.textContent = room; els.hint.textContent = `(đang ở phòng ${room})`; };
+  const tlkUrl = n => `https://tlk.io/${encodeURIComponent(room)}?nickname=${encodeURIComponent(n)}#embed`;
 
   function mountChat(){
     const name = getName(); setName(name); syncRoomUI();
     els.status.style.display = "flex";
     const url = tlkUrl(name);
-    els.frame.src = url; els.openNew.href = url; els.err.style.display="none";
-    const timer = setTimeout(()=>{ els.err.style.display="flex"; }, 6000);
+    els.frame.src = url; els.openNew.href = url; els.err.style.display = "none";
+
+    // Watchdog: nếu iframe không load trong 6s → hiện fallback
+    const timer = setTimeout(()=>{ els.err.style.display = "flex"; }, 6000);
     els.frame.addEventListener("load", ()=> clearTimeout(timer), {once:true});
   }
+
   function enterChat(){
-    els.login.style.display="none";
-    els.box.style.display="block";
+    els.login.style.display = "none";
+    els.box.style.display = "block";
     mountChat();
   }
 
+  // Events
   els.join.addEventListener("click", enterChat);
-  els.name.addEventListener("keydown", e=>{ if(e.key==="Enter") enterChat(); });
+  els.name.addEventListener("keydown", e => { if(e.key === "Enter") enterChat(); });
 
-  // Tạo phòng bí mật + copy tự ẩn
+  // Secret room + copy tự ẩn
   els.newRoom.addEventListener("click", async ()=>{
     room = `cvnss4-0-${Math.random().toString(36).slice(2,8)}`;
-    syncRoomUI(); history.replaceState(null,"",`?room=${room}`);
+    syncRoomUI();
+    history.replaceState(null,"",`?room=${room}`);
     const link = `${base}?room=${room}`;
-    els.roomUrl.textContent = link; els.linkArea.style.display="flex";
-    try{ await navigator.clipboard?.writeText?.(link); toast("✅ Link đã copy!"); }catch(_){}
+    els.roomUrl.textContent = link;
+    els.linkArea.style.display = "flex";
+    try{ await navigator.clipboard?.writeText?.(link); toast("✅ Đã copy link phòng!"); }catch(_){}
     setTimeout(()=>{ if(els.linkArea.style.display!=="none") els.linkArea.style.display="none"; }, 9000);
+
     els.copy.onclick = async ()=>{
       try{
         await navigator.clipboard?.writeText?.(link);
         if(navigator.share){ try{ await navigator.share({title:"Phòng chat CVNSS4.0", url:link}); }catch(_){} }
         toast("✅ Đã copy link phòng!");
       }catch(_){ toast("⚠️ Không copy được—hãy copy thủ công"); }
-      els.linkArea.style.display="none";
+      els.linkArea.style.display = "none";
     };
   });
 
-  // Prefill + auto-enter khi có tên
+  // Prefill + auto-enter nếu đã có tên
   const last = localStorage.getItem("cvnss4_name"); if(last) els.name.value = last;
   syncRoomUI(); els.name.focus({preventScroll:true});
   if (qs.get("room") && (last || els.name.value.trim() !== "")) enterChat();