[hidden]{display:none!important}

:root{
  --bg:#eef1f6;
  --panel:#ffffff;
  --panel2:#f5f7fb;
  --text:#161a22;
  --muted:#6b7280;
  --line:#e6e9f0;
  --accent:#3457ff;
  --accent2:#2542d6;
  --accent-soft:#eef1ff;
  --danger:#e0393f;
  --danger-soft:#fdecec;
  --success:#12875a;
  --shadow-sm:0 1px 2px rgba(20,25,40,.06);
  --shadow-md:0 10px 30px rgba(20,25,45,.10);
  --shadow-lg:0 24px 60px rgba(15,20,40,.16);
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --topbar-h:64px;
}
body.dark{
  --bg:#0b0d12;
  --panel:#14171f;
  --panel2:#1a1e28;
  --text:#eef1f6;
  --muted:#8b93a3;
  --line:#262b36;
  --accent:#6f8fff;
  --accent2:#88a4ff;
  --accent-soft:#1c2440;
  --danger:#ff6b6f;
  --danger-soft:#3a1c1e;
  --success:#31c380;
  --shadow-sm:0 1px 2px rgba(0,0,0,.3);
  --shadow-md:0 10px 30px rgba(0,0,0,.45);
  --shadow-lg:0 24px 60px rgba(0,0,0,.55);
}

*{box-sizing:border-box}
html,body{height:100%}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  overflow:hidden;
  overscroll-behavior:none;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,ui-sans-serif,sans-serif;
  background:var(--bg);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
}
button,input,textarea{font:inherit;color:inherit}
button{cursor:pointer;-webkit-tap-highlight-color:transparent}
a{color:var(--accent)}
::selection{background:var(--accent);color:#fff}

/* thin, unobtrusive scrollbars everywhere */
*{scrollbar-width:thin;scrollbar-color:var(--line) transparent}
*::-webkit-scrollbar{width:9px;height:9px}
*::-webkit-scrollbar-thumb{background:var(--line);border-radius:99px;border:2px solid transparent;background-clip:padding-box}
*::-webkit-scrollbar-track{background:transparent}

:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.icon{width:18px;height:18px;flex-shrink:0;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;vertical-align:-4px}

/* ---------- Login ---------- */
.login-shell{
  height:100dvh;
  display:grid;
  place-items:center;
  padding:24px;
  background:
    radial-gradient(circle at 15% 8%,rgba(52,87,255,.16),transparent 40%),
    radial-gradient(circle at 85% 92%,rgba(52,87,255,.10),transparent 40%),
    var(--bg);
}
.login-card{width:min(420px,100%);background:var(--panel);border:1px solid var(--line);border-radius:var(--r-xl);padding:36px;box-shadow:var(--shadow-lg)}
.brand-mark{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;background:linear-gradient(135deg,var(--accent),#7c5cff);color:#fff;font-size:26px;font-weight:800;box-shadow:0 8px 20px rgba(52,87,255,.35)}
.brand-mark.small{width:34px;height:34px;border-radius:10px;font-size:16px;box-shadow:none}
.login-card h1{margin:20px 0 6px;font-size:26px;letter-spacing:-.01em}
.login-card p{color:var(--muted);margin:0 0 28px;line-height:1.5}
.login-card label{display:block;font-size:13px;font-weight:600;margin:16px 0 7px;color:var(--muted)}
.login-card input{width:100%;border:1px solid var(--line);background:var(--panel2);color:var(--text);padding:13px 14px;border-radius:var(--r-sm);outline:none;transition:border-color .15s,box-shadow .15s}
.login-card input:focus,.subject-input:focus,.recipient-row input:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.password-row{display:flex;gap:8px}
.password-row input{flex:1;min-width:0}
.login-card small{display:block;color:var(--muted);margin-top:18px;line-height:1.5;font-size:12.5px}
.remember-row{display:flex!important;align-items:center;gap:8px;margin:18px 0 0!important;font-size:13px!important;font-weight:500!important;color:var(--text)!important;cursor:pointer}
.remember-row input{width:16px;height:16px;accent-color:var(--accent);flex:0 0 auto;padding:0}

.primary{border:0;background:var(--accent);color:#fff;border-radius:var(--r-sm);padding:12px 18px;font-weight:700;transition:background .15s,transform .1s}
.primary:hover{background:var(--accent2)}
.primary:active{transform:scale(.98)}
.primary:disabled{opacity:.6;cursor:default}
.wide{width:100%;margin-top:20px;padding:14px;font-size:15px}

/* ---------- App shell ---------- */
.app-shell{
  height:100dvh;
  display:grid;
  grid-template-columns:248px 1fr;
  background:var(--bg);
}
@media(min-width:851px){
  .app-shell{
    max-width:1480px;
    margin:14px auto;
    height:calc(100dvh - 28px);
    border-radius:var(--r-xl);
    overflow:hidden;
    box-shadow:var(--shadow-lg);
    border:1px solid var(--line);
  }
}

.sidebar{background:var(--panel);border-right:1px solid var(--line);padding:18px 14px;display:flex;flex-direction:column;min-width:0}
.brand{display:flex;align-items:center;gap:10px;padding:2px 8px 22px;font-weight:700}
.compose-btn{border:0;background:var(--accent);color:#fff;padding:13px 16px;border-radius:var(--r-md);display:flex;align-items:center;gap:9px;font-weight:700;margin-bottom:20px;box-shadow:0 8px 18px rgba(52,87,255,.28);transition:background .15s,transform .1s}
.compose-btn:hover{background:var(--accent2)}
.compose-btn:active{transform:scale(.98)}

nav{display:grid;gap:3px}
nav button{border:0;background:transparent;color:var(--muted);padding:10px 12px;border-radius:var(--r-sm);text-align:left;display:flex;align-items:center;gap:11px;font-weight:500;transition:background .12s,color .12s}
nav button span{flex:1}
nav button.active{background:var(--accent-soft);color:var(--accent);font-weight:700}
nav button:hover:not(.active){background:var(--panel2);color:var(--text)}
nav b{background:var(--accent);color:#fff;font-size:11px;font-weight:700;min-width:20px;padding:2px 6px;text-align:center;border-radius:999px}

.sidebar-footer{margin-top:auto;border-top:1px solid var(--line);padding:14px 8px 0}
.account-email{font-size:12px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin-bottom:10px}
.app-version{font-size:10px;color:var(--muted);opacity:.55;margin-bottom:10px}
.ghost{background:transparent;color:var(--muted);border:1px solid var(--line);border-radius:var(--r-sm);padding:8px 12px;display:inline-flex;align-items:center;gap:7px;font-size:13px;transition:background .12s,color .12s}
.ghost:hover{background:var(--panel2);color:var(--text)}

.main{min-width:0;display:flex;flex-direction:column;min-height:0}

.topbar{height:var(--topbar-h);flex:0 0 auto;border-bottom:1px solid var(--line);background:var(--panel);display:flex;align-items:center;gap:10px;padding:10px 18px}
.search-wrap{max-width:640px;flex:1;display:flex;align-items:center;gap:9px;background:var(--panel2);border:1px solid var(--line);border-radius:var(--r-md);padding:0 13px;color:var(--muted);transition:border-color .15s}
.search-wrap:focus-within{border-color:var(--accent)}
.search-wrap input{width:100%;border:0;background:transparent;color:var(--text);outline:none;padding:10px 0}
.icon-btn{width:38px;height:38px;flex:0 0 auto;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--panel);color:var(--muted);display:grid;place-items:center;transition:background .12s,color .12s}
.icon-btn:hover{background:var(--panel2);color:var(--text)}
.mobile-only{display:none}

.content-grid{flex:1;min-height:0;display:grid;grid-template-columns:minmax(320px,40%) 1fr}

/* ---------- Mail list ---------- */
.mail-list-panel{min-width:0;min-height:0;background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column}
.list-head{flex:0 0 auto;min-height:64px;display:flex;align-items:center;justify-content:space-between;padding:10px 18px;border-bottom:1px solid var(--line);gap:10px}
.list-head h2{font-size:17px;margin:0 0 2px;letter-spacing:-.01em}
.list-head span{font-size:12px;color:var(--muted)}
.pager{display:flex;align-items:center;gap:6px;flex:0 0 auto}
.pager button{width:29px;height:29px;border:1px solid var(--line);border-radius:8px;background:var(--panel);color:var(--muted);display:grid;place-items:center}
.pager button:disabled{opacity:.4}
.pager button .icon{width:15px;height:15px}
.pager span{font-size:12px;color:var(--muted);min-width:40px;text-align:center}

.mail-list{overflow-y:auto;overflow-x:hidden;min-height:0}
.mail-item{padding:13px 18px;border-bottom:1px solid var(--line);cursor:pointer;display:flex;gap:12px;align-items:flex-start;position:relative;transition:background .1s}
.mail-item:hover{background:var(--panel2)}
.mail-item.selected{background:var(--accent-soft)}
.mail-item.unread{background:color-mix(in srgb,var(--accent) 5%,var(--panel))}
.mail-item.unread::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent)}
.mail-item.unread .sender,.mail-item.unread .subject{font-weight:700}
.mail-avatar{flex:0 0 auto;width:34px;height:34px;border-radius:50%;background:var(--panel2);color:var(--muted);display:grid;place-items:center;font-size:13px;font-weight:700}
.mail-item.unread .mail-avatar{background:var(--accent-soft);color:var(--accent)}
.mail-main{flex:1;min-width:0;display:grid;gap:4px}
.mail-top{display:flex;gap:10px;align-items:baseline;min-width:0}
.sender{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:14px}
.mail-time{font-size:11px;color:var(--muted);flex:0 0 auto}
.subject{min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:13px;color:var(--muted)}
.mail-size{min-width:0;font-size:11px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.loading,.empty-list{padding:50px 20px;text-align:center;color:var(--muted);font-size:13.5px}

/* ---------- Reader ---------- */
.reader{min-width:0;min-height:0;background:var(--panel);overflow-y:auto;overflow-x:hidden}
.empty-reader{display:grid;place-items:center}
.empty-state{text-align:center;color:var(--muted);padding:30px;max-width:280px}
.empty-state h3{color:var(--text);margin:14px 0 5px;font-size:16px}
.empty-state p{margin:0;font-size:13.5px;line-height:1.5}
.empty-icon{width:56px;height:56px;margin:0 auto;border-radius:50%;background:var(--panel2);display:grid;place-items:center;color:var(--muted)}
.empty-icon .icon{width:26px;height:26px}

.message-view{min-height:100%;display:flex;flex-direction:column}
.message-toolbar{flex:0 0 auto;display:flex;gap:8px;align-items:center;padding:10px 16px;border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--panel);z-index:2;overflow-x:auto}
.message-toolbar button{flex:0 0 auto;border:1px solid var(--line);background:var(--panel);color:var(--text);border-radius:var(--r-sm);padding:8px 13px;display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:500;white-space:nowrap;transition:background .12s}
.message-toolbar button:hover{background:var(--panel2)}
.message-toolbar .danger{color:var(--danger)}
.message-toolbar .danger:hover{background:var(--danger-soft)}

.message-head{padding:22px 24px 18px;border-bottom:1px solid var(--line)}
.message-head h1{font-size:22px;margin:0 0 16px;letter-spacing:-.01em;line-height:1.3;word-break:break-word}
.message-meta{font-size:13px;line-height:1.8;color:var(--muted)}
.message-meta strong{color:var(--text);font-weight:600}
.message-body{padding:22px 24px;line-height:1.65;min-width:0}
.message-body pre{white-space:pre-wrap;word-break:break-word;font:inherit;margin:0}

/* Contain any wide/legacy HTML email markup so it can never force the
   whole page to scroll sideways — only this box scrolls if needed. */
.message-html-wrap{border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;background:#fff}
.message-html{max-width:100%;overflow-x:auto;color:#111;padding:18px;-webkit-overflow-scrolling:touch}
.message-html img{max-width:100%;height:auto}
.message-html table{max-width:100%}
body.dark .message-html-wrap{border-color:var(--line)}

.attachments{padding:0 24px 24px;display:flex;gap:8px;flex-wrap:wrap}
.attachment{display:inline-flex;align-items:center;gap:10px;border:1px solid var(--line);padding:8px 10px;border-radius:var(--r-md);color:var(--text);text-decoration:none;background:var(--panel2);font-size:13px;transition:background .12s;max-width:260px}
.attachment:hover{background:var(--line)}
.attachment small{color:var(--muted);display:block;font-size:11px}
.attachment{padding:0 4px 0 8px;cursor:default}
.attachment[data-img="1"] .att-click{cursor:pointer}
.att-click{display:inline-flex;align-items:center;gap:10px;min-width:0;padding:8px 0}
.att-thumb{width:36px;height:36px;border-radius:8px;object-fit:cover;flex:0 0 auto}
.att-thumb.att-ic{background:var(--panel);display:grid;place-items:center;color:var(--muted)}
.att-info{min-width:0;flex:1;display:grid}
.att-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.att-dl{flex:0 0 auto;width:30px;height:30px;margin-left:6px;border-radius:8px;color:var(--muted);display:grid;place-items:center;text-decoration:none;transition:background .12s,color .12s}
.att-dl:hover{background:var(--line);color:var(--text)}

/* ---------- Attachment preview ---------- */
.modal.preview-modal{place-items:center;padding:20px}
.preview-card{width:min(420px,92vw);aspect-ratio:1/1;max-height:92dvh;background:var(--panel);border-radius:var(--r-lg);box-shadow:var(--shadow-lg);display:flex;flex-direction:column;overflow:hidden}
.preview-head{flex:0 0 auto;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 12px;border-bottom:1px solid var(--line)}
.preview-name{min-width:0;flex:1;font-size:13px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding-left:4px}
.preview-actions{flex:0 0 auto;display:flex;gap:6px}
.preview-body{flex:1;min-height:0;display:grid;place-items:center;background:#0b0d12}
.preview-body img{max-width:100%;max-height:100%;object-fit:contain}

/* ---------- Compose modal ---------- */
.modal{position:fixed;inset:0;background:rgba(8,10,16,.55);display:grid;place-items:end center;padding:20px;z-index:50;backdrop-filter:blur(2px)}
.compose-card{width:min(680px,100%);height:min(680px,86dvh);background:var(--panel);border-radius:var(--r-lg);box-shadow:var(--shadow-lg);display:flex;flex-direction:column;overflow:hidden}
.compose-head{flex:0 0 auto;height:56px;padding:10px 18px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);font-size:14px}
#composeForm{display:flex;flex-direction:column;min-height:0;flex:1}
.recipient-row{flex:0 0 auto;display:flex;align-items:center;border-bottom:1px solid var(--line);padding:0 16px;gap:10px}
.recipient-row label{width:40px;flex:0 0 auto;font-size:12px;color:var(--muted)}
.recipient-row input,.subject-input{border:0!important;box-shadow:none!important;background:transparent;color:var(--text);padding:9px 0;outline:none;flex:1;min-width:0;font-size:14.5px}
.text-btn{border:0;background:transparent;color:var(--accent);font-size:12px;font-weight:600;padding:6px;white-space:nowrap;flex:0 0 auto}
.extra-to-row .remove-to-btn{width:26px;height:26px;flex:0 0 auto;border-radius:50%;border:0;background:var(--panel2);color:var(--muted)}
.extra-to-row .remove-to-btn .icon{width:12px;height:12px}
.extra-to-row .remove-to-btn:hover{background:var(--danger);color:#fff}
.subject-input{padding:4px 16px;border-bottom:1px solid var(--line)!important;font-weight:600;font-size:13.5px;line-height:1.25;resize:none;overflow-y:auto;max-height:140px;display:block;font-family:inherit;white-space:pre-wrap;word-break:break-word}
.compose-card textarea{flex:1;resize:none;border:0;background:var(--panel);color:var(--text);padding:18px;outline:none;line-height:1.6;min-height:120px}
.attachment-chips{flex:0 0 auto;display:flex;flex-wrap:wrap;gap:8px;padding:0 16px;max-height:112px;overflow-y:auto}
.attachment-chips:not(:empty){padding-bottom:12px}
.chip{display:inline-flex;align-items:center;gap:10px;background:var(--panel2);border:1px solid var(--line);border-radius:var(--r-md);padding:6px 8px;font-size:13px;max-width:100%}
.chip-thumb{width:36px;height:36px;border-radius:8px;object-fit:cover;flex:0 0 auto}
.chip-thumb.chip-ic{background:var(--panel);display:grid;place-items:center;color:var(--muted)}
.chip-thumb.chip-ic .icon{width:16px;height:16px}
.chip-info{min-width:0;flex:1;display:grid}
.chip-name{max-width:110px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.chip small{color:var(--muted);display:block;font-size:11px}
.chip-x{flex:0 0 auto;width:26px;height:26px;border-radius:8px;border:0;background:var(--panel);color:var(--muted);display:grid;place-items:center;padding:0}
.chip-x .icon{width:13px;height:13px}
.chip-x:hover{background:var(--danger);color:#fff}
.compose-actions{flex:0 0 auto;display:flex;align-items:center;gap:10px;padding:12px 16px;border-top:1px solid var(--line)}
.attach-btn{cursor:pointer;border:1px solid var(--line);padding:8px 12px;border-radius:var(--r-sm);display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--muted);transition:background .12s}
.attach-btn:hover{background:var(--panel2)}
.compose-actions .primary{margin-left:auto}
.compose-actions span{font-size:11px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:40%}

.toast{position:fixed;right:18px;bottom:18px;z-index:100;background:#161a22;color:#fff;padding:13px 16px;border-radius:var(--r-md);box-shadow:var(--shadow-lg);max-width:min(420px,calc(100vw - 36px));font-size:13.5px}
.toast.error{background:var(--danger)}
.toast.success{background:var(--success)}

.sidebar-backdrop{display:none}

/* ---------- Mobile ---------- */
@media(max-width:850px){
  .app-shell{grid-template-columns:1fr}
  .sidebar-backdrop{position:fixed;inset:0;z-index:29;background:rgba(8,10,16,.4);display:block}
  .sidebar{position:fixed;z-index:30;inset:0 auto 0 0;width:280px;transform:translateX(-105%);transition:transform .22s ease;box-shadow:var(--shadow-lg)}
  .sidebar.open{transform:translateX(0)}
  .mobile-only{display:grid}
  .content-grid{grid-template-columns:1fr}
  .reader{position:fixed;z-index:20;inset:var(--topbar-h) 0 0 0;transform:translateX(105%);transition:transform .22s ease;background:var(--bg)}
  .reader.open{transform:translateX(0)}
  .mail-list-panel{border-right:0}
  .message-head,.message-body{padding-left:18px;padding-right:18px}
  .attachments{padding-left:18px;padding-right:18px}
  .modal{padding:0;place-items:end}
  .compose-card{height:92dvh;border-radius:var(--r-lg) var(--r-lg) 0 0}
  .topbar{padding:8px 12px}
  .search-wrap{min-width:0}
  .message-toolbar{padding:8px 10px}
  .message-toolbar button{padding:10px;width:42px;height:42px;justify-content:center}
  .message-toolbar button .btn-lb{display:none}
  .compose-actions span{max-width:30%}
}
@media(max-width:480px){
  .login-card{padding:26px 20px;border-radius:var(--r-lg)}
  .list-head{padding:10px 14px}
  .mail-item{padding:12px 14px}
  .message-head{padding:18px 16px 14px}
  .message-head h1{font-size:20px}
  .message-body{padding:16px}
  .compose-actions span{display:none}
}

@media(prefers-reduced-motion:reduce){
  *{transition-duration:0.01ms!important;animation-duration:0.01ms!important}
}

/* ---------- Gmail-like selection / bulk actions ---------- */
.list-title-wrap{min-width:0}
.bulk-toolbar{display:flex;align-items:center;gap:6px;min-width:0;flex:1;margin-left:8px}
.bulk-toolbar[hidden]{display:none!important}
.bulk-toolbar .icon-btn{width:32px;height:32px;border-radius:8px}
.bulk-toolbar .danger{color:var(--danger)}
.selected-count{font-size:12px;color:var(--muted);white-space:nowrap;margin:0 4px}
.select-all-wrap,.mail-check{position:relative;display:grid;place-items:center;flex:0 0 auto;cursor:pointer}
.select-all-wrap{width:30px;height:30px}
.mail-check{width:22px;height:34px;margin-top:0}
.select-all-wrap input,.mail-check input{position:absolute;opacity:0;pointer-events:none}
.select-all-wrap span,.mail-check span{width:16px;height:16px;border:1.5px solid var(--muted);border-radius:4px;background:var(--panel);display:block;position:relative;transition:.12s}
.select-all-wrap input:checked+span,.mail-check input:checked+span{background:var(--accent);border-color:var(--accent)}
.select-all-wrap input:checked+span::after,.mail-check input:checked+span::after{content:"";position:absolute;left:4px;top:1px;width:5px;height:9px;border:solid #fff;border-width:0 2px 2px 0;transform:rotate(45deg)}
.select-all-wrap input:indeterminate+span{border-color:var(--accent);background:var(--accent)}
.select-all-wrap input:indeterminate+span::after{content:"";position:absolute;left:3px;right:3px;top:6px;height:2px;background:#fff;border-radius:2px}
.star-btn{width:28px;height:34px;border:0;background:transparent;color:var(--muted);display:grid;place-items:center;flex:0 0 auto;border-radius:7px;padding:0}
.star-btn:hover{background:var(--panel2);color:var(--text)}
.star-btn.active,.message-toolbar .starred{color:#f4b400}
.star-btn .icon{width:17px;height:17px}
.mail-item:has(.mail-check input:checked){background:var(--accent-soft)}

@media(max-width:850px){
  .list-head{padding:8px 10px;min-height:58px}
  .bulk-toolbar{gap:3px;margin-left:2px}
  .bulk-toolbar .icon-btn{width:30px;height:30px}
  .selected-count{display:none}
  .list-head:has(.bulk-toolbar:not([hidden])) .list-title-wrap{display:none}
  .mail-check{width:20px}
  .star-btn{width:24px}
  .mail-avatar{width:32px;height:32px}
}