<!DOCTYPE html>
<html lang="ja">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>MailLite — シンプルWebメール</title>
<style>
:root{
--bg:#f6f7fb;
--panel:#ffffff;
--text:#1f2937;
--muted:#6b7280;
--primary:#4f46e5;
--primary-weak:#eef2ff;
--border:#e5e7eb;
--danger:#ef4444;
--success:#10b981;
--warning:#f59e0b;
}
.dark{
--bg:#0b0e15;
--panel:#0f1623;
--text:#e5e7eb;
--muted:#9ca3af;
--primary:#8b5cf6;
--primary-weak:#221a36;
--border:#1f2937;
--danger:#f87171;
--success:#34d399;
--warning:#fbbf24;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
margin:0;background:var(--bg);color:var(--text);
font:14px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,"Noto Sans JP",sans-serif;
}
.app{
display:grid;grid-template-rows:56px 1fr;height:100%;
}
/* Topbar */
.topbar{
display:flex;align-items:center;gap:12px;
padding:0 16px;border-bottom:1px solid var(--border);background:var(--panel);
position:sticky;top:0;z-index:5;
}
.logo{
display:flex;align-items:center;gap:10px;font-weight:700;
letter-spacing:.2px;
}
.badge{font-size:10px;padding:2px 6px;border-radius:999px;background:var(--primary-weak);color:var(--primary)}
.search{
margin-left:auto;display:flex;align-items:center;gap:8px;background:var(--bg);
padding:6px 10px;border-radius:10px;border:1px solid var(--border);min-width:220px;max-width:460px;flex:1;
}
.search input{border:none;background:transparent;outline:none;color:var(--text);width:100%}
.icon{width:18px;height:18px;display:inline-block;flex:0 0 18px}
.btn{
display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:10px;
border:1px solid var(--border);background:var(--panel);cursor:pointer;color:var(--text);
}
.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn.ghost{background:transparent}
.btn:disabled{opacity:.6;cursor:not-allowed}
/* Layout */
.layout{
display:grid;grid-template-columns:260px 360px 1fr;gap:12px;padding:12px;height:calc(100vh - 56px);
}
.panel{background:var(--panel);border:1px solid var(--border);border-radius:14px;overflow:hidden;display:flex;flex-direction:column;min-height:0}
.sidebar{padding:12px}
.compose-block{padding:12px}
.compose-button{width:100%;justify-content:center}
.nav-group{margin-top:8px}
.nav-item{
display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;color:var(--text);text-decoration:none;cursor:pointer;
}
.nav-item:hover{background:var(--primary-weak)}
.nav-item.active{background:var(--primary);color:#fff}
.nav-item .count{margin-left:auto;opacity:.8}
/* List */
.list-toolbar{display:flex;align-items:center;gap:8px;padding:8px;border-bottom:1px solid var(--border)}
.list{overflow:auto}
.msg{
display:grid;grid-template-columns:24px 1fr auto;gap:10px;padding:12px;border-bottom:1px solid var(--border);cursor:pointer;
}
.msg:hover{background:var(--primary-weak)}
.msg.unread{background:linear-gradient(0deg,transparent,transparent), var(--panel);font-weight:600}
.msg .from{color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.msg .subject{color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.msg .snippet{color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.msg .meta{display:flex;flex-direction:column;align-items:end;gap:4px;color:var(--muted)}
.chip{display:inline-flex;align-items:center;gap:6px;padding:2px 8px;border-radius:999px;border:1px solid var(--border);font-size:11px}
.star{cursor:pointer;opacity:.7}
.star.active{opacity:1}
.avatar{
width:24px;height:24px;border-radius:50%;background:linear-gradient(135deg,var(--primary),#22c1c3);
display:grid;place-items:center;color:#fff;font-size:12px;font-weight:700;
}
/* Reader */
.reader-head{
padding:12px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:12px;flex-wrap:wrap;
}
.reader-title{font-size:18px;font-weight:700}
.reader-meta{color:var(--muted);font-size:12px}
.reader-actions{margin-left:auto;display:flex;gap:8px}
.reader-body{padding:16px;overflow:auto}
.empty{display:grid;place-items:center;height:100%;color:var(--muted)}
/* Modal */
.modal{
position:fixed;inset:0;background:rgba(0,0,0,.4);display:none;align-items:center;justify-content:center;z-index:20;
}
.modal.open{display:flex}
.modal-card{
width:min(920px,94vw);max-height:88vh;overflow:auto;background:var(--panel);border:1px solid var(--border);
border-radius:16px;
}
.modal-head{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--border)}
.modal-body{padding:16px;display:grid;gap:10px}
.field{display:grid;gap:6px}
.input, textarea{
width:100%;padding:10px 12px;border-radius:10px;border:1px solid var(--border);
background:transparent;color:var(--text);outline:none;
}
textarea{min-height:220px;resize:vertical}
.row{display:flex;gap:10px;flex-wrap:wrap}
.grow{flex:1}
/* Responsive */
@media (max-width: 1100px){
.layout{grid-template-columns:220px 1fr}
.reader{display:none}
.layout.show-reader .list{display:none}
.layout.show-reader .reader{display:flex}
}
@media (max-width: 640px){
.layout{grid-template-columns:1fr}
.sidebar{display:none}
}
</style>
</head>
<body>
<div class="app">
<!-- Topbar -->
<div class="topbar">
<div class="logo">
<svg class="icon" viewBox="0 0 24 24" fill="none" aria-hidden="true">
<path d="M3 7.5 12 13l9-5.5v9A2.5 2.5 0 0 1 18.5 19h-13A2.5 2.5 0 0 1 3 16.5v-9Z" stroke="currentColor" stroke-width="1.5"/>
<path d="m3 7.5 9-5 9 5" stroke="currentColor" stroke-width="1.5"/>
</svg>
MailLite <span class="badge">beta</span>
</div>
<div class="search">
<svg class="icon" viewBox="0 0 24 24" fill="none"><path d="m21 21-4.2-4.2" stroke="currentColor" stroke-width="1.5" stroke-linecap="round"/><circle cx="11" cy="11" r="7" stroke="currentColor" stroke-width="1.5"/></svg>
<input id="search" placeholder="メールを検索（差出人・件名・本文・ラベル）" />
<button class="btn ghost" id="clearSearch" title="検索クリア">クリア</button>
</div>
<button class="btn" id="toggleDark" title="ダークモード">
<svg class="icon" viewBox="0 0 24 24" fill="none"><path d="M12 3a9 9 0 1 0 9 9 7 7 0 0 1-9-9Z" stroke="currentColor" stroke-width="1.5"/></svg>
主题
</button>
<button class="btn primary" id="composeBtn">
<svg class="icon" viewBox="0 0 24 24" fill="none"><path d="M4 20h16M6 14l9.5-9.5a2.1 2.1 0 1 1 3 3L9 17l-5 1 2-4Z" stroke="#fff" stroke-width="1.5" stroke-linejoin="round"/></svg>
新規作成
</button>
</div>
<!-- Main layout -->
<div class="layout" id="layout">
<!-- Sidebar -->
<aside class="panel sidebar">
<div class="compose-block">
<button class="btn primary compose-button" id="composeBtn2">
<svg class="icon" viewBox="0 0 24 24" fill="none"><path d="M4 20h16M6 14l9.5-9.5a2.1 2.1 0 1 1 3 3L9 17l-5 1 2-4Z" stroke="#fff" stroke-width="1.5" stroke-linejoin="round"/></svg>
新規メール
</button>
</div>
<nav class="nav-group" id="folders"></nav>
</aside>
<!-- List -->
<section class="panel">
<div class="list-toolbar">
<button class="btn" id="markReadBtn" title="既読にする">既読</button>
<button class="btn" id="markUnreadBtn" title="未読にする">未読</button>
<button class="btn" id="archiveBtn" title="アーカイブ">アーカイブ</button>
<button class="btn" id="deleteBtn" title="削除">削除</button>
<div style="margin-left:auto;display:flex;align-items:center;gap:6px;">
<span class="chip"><span class="dot" style="width:8px;height:8px;border-radius:50%;background:var(--primary)"></span> ラベル</span>
</div>
</div>
<div class="list" id="list"></div>
</section>
<!-- Reader -->
<section class="panel reader" id="reader">
<div class="empty" id="emptyState">メールを選択してください</div>
<div style="display:none;flex-direction:column;height:100%;" id="readerWrap">
<div class="reader-head">
<div style="display:flex;align-items:center;gap:10px;min-width:0">
<div class="avatar" id="readerAvatar">Y</div>
<div style="min-width:0">
<div class="reader-title" id="readerSubject">件名</div>
<div class="reader-meta" id="readerMeta">From – To ・ 日付</div>
</div>
</div>
<div class="reader-actions">
<button class="btn" id="replyBtn" title="返信">返信</button>
<button class="btn" id="starBtn" title="スター">
<span id="starIcon">☆</span> スター
</button>
<button class="btn" id="archBtn" title="アーカイブ">アーカイブ</button>
<button class="btn" id="trashBtn" title="削除" style="color:var(--danger)">削除</button>
</div>
</div>
<div class="reader-body">
<div id="readerBody"></div>
</div>
</div>
</section>
</div>
</div>
<!-- Compose Modal -->
<div class="modal" id="composeModal" aria-hidden="true">
<div class="modal-card">
<div class="modal-head">
<strong>新規メッセージ</strong>
<div class="row">
<button class="btn" id="saveDraftBtn">下書き保存</button>
<button class="btn primary" id="sendBtn">送信</button>
<button class="btn" id="closeModalBtn">閉じる</button>
</div>
</div>
<div class="modal-body">
<div class="row">
<div class="field grow">
<label for="to">宛先（カンマ区切り）</label>
<input class="input" id="to" placeholder="example@example.com, someone@domain.jp" />
</div>
<div class="field" style="min-width:160px;">
<label for="label">ラベル</label>
<input class="input" id="label" placeholder="work, personal など" />
</div>
</div>
<div class="field">
<label for="subject">件名</label>
<input class="input" id="subject" placeholder="件名を入力" />
</div>
<div class="field">
<label for="body">本文</label>
<textarea id="body" placeholder="本文を入力"></textarea>
</div>
</div>
</div>
</div>
<script>
/** ======= Simple Mail App (no backend) ======= */
const DB_KEY = "maillite-db-v1";
const QS = sel => document.querySelector(sel);
const QSA = sel => [...document.querySelectorAll(sel)];
const state = {
currentFolder: "inbox",
query: "",
selectedIds: new Set(),
currentId: null,
db: { messages: [] }
};
const FOLDERS = [
{id:"inbox", name:"受信箱", icon:"📥"},
{id:"starred", name:"スター", icon:"⭐"},
{id:"sent", name:"送信済み", icon:"📤"},
{id:"drafts", name:"下書き", icon:"📝"},
{id:"archive", name:"アーカイブ",icon:"🗄️"},
{id:"spam", name:"迷惑", icon:"🚫"},
{id:"trash", name:"ゴミ箱", icon:"🗑️"},
];
function initDB(){
const saved = localStorage.getItem(DB_KEY);
if(saved){
state.db = JSON.parse(saved);
return;
}
// Seed sample messages
const now = Date.now();
const demo = [
mkMsg("suzuki@example.com","ようこそ MailLite へ","MailLite をお試しいただきありがとうございます！\n\nこのメールはデモです。",["welcome"], now-3600_000),
mkMsg("shop@ec.example.com","【お知らせ】サマーセール開催！","最大 50%OFF。今すぐチェック！",["promo"], now-7200_000),
mkMsg("boss@company.jp","明日の打合せ議題","・リリース計画\n・障害対応\n・コスト見直し",["work"], now-86400_000, true),
mkMsg("friend@chat.jp","週末の予定どう？","映画かカラオケ行かない？",["personal"], now-5400_000),
mkMsg("security@service.jp","ログイン通知","新しい端末からログインがありました。",["security"], now-9600_000),
];
demo[2].unread = false;
state.db.messages = demo;
persist();
}
function mkMsg(from, subject, body, labels=[], time=Date.now(), starred=false){
const id = crypto.randomUUID();
const initials = (from.split("@")[0][0]||"U").toUpperCase();
return {
id, box:"inbox", from, to:[], subject, body, labels, starred, unread:true,
date: time, initials
};
}
function persist(){ localStorage.setItem(DB_KEY, JSON.stringify(state.db)); }
function formatDate(ts){
const d = new Date(ts);
const pad = n => String(n).padStart(2,"0");
return `${d.getFullYear()}/${pad(d.getMonth()+1)}/${pad(d.getDate())} ${pad(d.getHours())}:${pad(d.getMinutes())}`;
}
// Render folders
function renderFolders(){
const el = QS("#folders");
el.innerHTML = "";
for(const f of FOLDERS){
const count = countFolder(f.id);
const a = document.createElement("a");
a.className = "nav-item" + (state.currentFolder===f.id?" active":"");
a.dataset.id = f.id;
a.innerHTML = `<span>${f.icon}</span><span>${f.name}</span><span class="count">${count||""}</span>`;
a.addEventListener("click", ()=>{
state.currentFolder = f.id;
state.selectedIds.clear();
state.currentId = null;
render();
});
el.appendChild(a);
}
}
function countFolder(folder){
return filterByFolder(state.db.messages, folder).length;
}
function filterByFolder(list, folder){
switch(folder){
case "inbox": return list.filter(m=>m.box==="inbox");
case "starred": return list.filter(m=>m.starred && m.box!=="trash");
case "sent": return list.filter(m=>m.box==="sent");
case "drafts": return list.filter(m=>m.box==="drafts");
case "archive": return list.filter(m=>m.box==="archive");
case "spam": return list.filter(m=>m.box==="spam");
case "trash": return list.filter(m=>m.box==="trash");
default: return list;
}
}
// Search
function matchesQuery(m,q){
if(!q) return true;
const s = q.toLowerCase();
const hay = [
m.from, (m.to||[]).join(","), m.subject, m.body, (m.labels||[]).join(",")
].join("\n").toLowerCase();
return hay.includes(s);
}
// Render list
function renderList(){
const wrap = QS("#list");
const items = filterByFolder(state.db.messages, state.currentFolder)
.filter(m=>matchesQuery(m, state.query))
.sort((a,b)=>b.date-a.date);
wrap.innerHTML = "";
if(items.length===0){
wrap.innerHTML = `<div class="empty" style="height:100%;">${state.query? "検索結果がありません":"このフォルダは空です"}</div>`;
return;
}
for(const m of items){
const row = document.createElement("div");
row.className = "msg" + (m.unread?" unread":"");
row.dataset.id = m.id;
const starClass = m.starred? "active":"";
row.innerHTML = `
<div class="avatar" title="${m.from}">${m.initials}</div>
<div style="min-width:0">
<div class="from">${m.from}</div>
<div class="subject">${m.subject}</div>
<div class="snippet">${(m.labels?.length? m.labels.map(l=>"#"+l).join(" ")+" · ":"")}${m.body.replace(/\n/g," ").slice(0,120)}</div>
</div>
<div class="meta">
<div>${formatDate(m.date)}</div>
<div class="star ${starClass}" data-star-id="${m.id}" title="スター">${m.starred?"★":"☆"}</div>
</div>
`;
row.addEventListener("click", (e)=>{
// If star clicked, don't open
if(e.target && e.target.dataset.starId){ return; }
openMessage(m.id);
});
row.querySelector(".star").addEventListener("click",(e)=>{
e.stopPropagation();
toggleStar(m.id);
});
wrap.appendChild(row);
}
}
// Reader
function openMessage(id){
const m = state.db.messages.find(x=>x.id===id);
if(!m) return;
state.currentId = id;
m.unread = false;
persist();
QS("#emptyState").style.display = "none";
QS("#readerWrap").style.display = "flex";
QS("#readerSubject").textContent = m.subject || "(件名なし)";
QS("#readerMeta").textContent = `From: ${m.from} / To: ${(m.to||[]).join(", ")||"(なし)"} ・ ${formatDate(m.date)}`;
QS("#readerBody").innerHTML = safeHtml(m.body).replace(/\n/g,"<br>");
QS("#readerAvatar").textContent = m.initials || "U";
QS("#starIcon").textContent = m.starred ? "★" : "☆";
// Mobile: show reader
QS("#layout").classList.add("show-reader");
render();
}
function safeHtml(s=""){
return s.replace(/[&<>"']/g, ch => ({
"&":"&","<":"<",">":">",'"':""","'":"'"
}[ch]));
}
// Actions
function getSelectedOrCurrentIds(){
if(state.selectedIds.size>0) return [...state.selectedIds];
if(state.currentId) return [state.currentId];
return [];
}
function markRead(read=true){
for(const id of getSelectedOrCurrentIds()){
const m = state.db.messages.find(x=>x.id===id);
if(m) m.unread = !read;
}
persist(); render();
}
function moveTo(box){
for(const id of getSelectedOrCurrentIds()){
const m = state.db.messages.find(x=>x.id===id);
if(m) m.box = box;
}
// If current message was moved out of view, clear reader
if(state.currentId){
const cm = state.db.messages.find(x=>x.id===state.currentId);
const visible = filterByFolder([cm], state.currentFolder).length>0;
if(!visible){ state.currentId = null; QS("#readerWrap").style.display="none"; QS("#emptyState").style.display="grid"; }
}
persist(); render();
}
function toggleStar(id){
const m = state.db.messages.find(x=>x.id===id);
if(m){ m.starred = !m.starred; persist(); render(); if(state.currentId===id) QS("#starIcon").textContent=m.starred?"★":"☆"; }
}
// Compose
function openCompose(prefill={}){
QS("#composeModal").classList.add("open");
QS("#to").value = prefill.to?.join(", ") || "";
QS("#subject").value = prefill.subject || "";
QS("#body").value = prefill.body || "";
QS("#label").value = (prefill.labels||[]).join(", ");
}
function closeCompose(){ QS("#composeModal").classList.remove("open"); }
function saveDraft(){
const draft = collectForm();
draft.box = "drafts";
draft.unread = false;
draft.from = "me@local";
draft.id = crypto.randomUUID();
state.db.messages.push(draft);
persist(); closeCompose(); render();
alert("下書きを保存しました。");
}
function sendMail(){
const msg = collectForm();
if(!msg.to.length){ alert("宛先を入力してください"); return; }
msg.box = "sent";
msg.unread = false;
msg.from = "me@local";
msg.id = crypto.randomUUID();
state.db.messages.push(msg);
persist(); closeCompose(); render();
alert("送信しました（デモ動作：実送信なし）");
}
function collectForm(){
const to = QS("#to").value.split(",").map(s=>s.trim()).filter(Boolean);
const subject = QS("#subject").value.trim() || "(件名なし)";
const body = QS("#body").value;
const labels = QS("#label").value.split(",").map(s=>s.trim()).filter(Boolean);
return { to, subject, body, labels, date: Date.now(), starred:false, unread:true, initials:"M" };
}
// Selection (click+Ctrl/Shift optional simplified)
QS("#list").addEventListener("click",(e)=>{
const row = e.target.closest(".msg");
if(!row) return;
if(e.ctrlKey || e.metaKey){
const id = row.dataset.id;
if(state.selectedIds.has(id)) state.selectedIds.delete(id); else state.selectedIds.add(id);
row.classList.toggle("selected");
}
});
// Topbar controls
QS("#composeBtn").onclick = ()=>openCompose();
QS("#composeBtn2").onclick = ()=>openCompose();
QS("#closeModalBtn").onclick = closeCompose;
QS("#saveDraftBtn").onclick = saveDraft;
QS("#sendBtn").onclick = sendMail;
QS("#search").addEventListener("input",(e)=>{ state.query = e.target.value.trim(); renderList(); });
QS("#clearSearch").onclick = ()=>{ QS("#search").value=""; state.query=""; renderList(); };
QS("#toggleDark").onclick = ()=>{
document.body.classList.toggle("dark");
localStorage.setItem("maillite-theme", document.body.classList.contains("dark")? "dark":"light");
};
// List toolbar actions
QS("#markReadBtn").onclick = ()=>markRead(true);
QS("#markUnreadBtn").onclick = ()=>markRead(false);
QS("#archiveBtn").onclick = ()=>moveTo("archive");
QS("#deleteBtn").onclick = ()=>moveTo("trash");
// Reader actions
QS("#replyBtn").onclick = ()=>{
const m = state.db.messages.find(x=>x.id===state.currentId);
if(!m) return;
openCompose({ to:[m.from], subject:"Re: "+m.subject, body:`\n\n--- ${m.from} さんのメッセージ ---\n${m.body}`, labels:["reply"] });
};
QS("#starBtn").onclick = ()=>{ if(state.currentId) toggleStar(state.currentId); };
QS("#archBtn").onclick = ()=>moveTo("archive");
QS("#trashBtn").onclick = ()=>moveTo("trash");
// Clicking outside modal to close
QS("#composeModal").addEventListener("click",(e)=>{ if(e.target===QS("#composeModal")) closeCompose(); });
// Mobile back from reader by clicking empty area (or press Escape)
document.addEventListener("keydown",(e)=>{
if(e.key==="Escape"){
if(QS("#composeModal").classList.contains("open")) closeCompose();
else QS("#layout").classList.remove("show-reader");
}
});
// Initial render
function render(){
renderFolders();
renderList();
}
(function boot(){
initDB();
render();
// Theme
if(localStorage.getItem("maillite-theme")==="dark"){ document.body.classList.add("dark"); }
})();
</script>
</body>
</html>
