:root{
  --bg: #0b0d10;
  --panel: #11151b;
  --panel2: #0f1318;
  --text: #e8edf2;
  --muted: #9aa6b2;
  --border: #1f2833;
  --accent: #4aa3ff;
  --danger: #ff5d5d;
  --shadow: 0 10px 30px rgba(0,0,0,.35);
  --radius: 14px;
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;

  /* Resizable pane widths */
  --sidebar-w: 260px;
  --list-w: 420px;
}

[data-theme="light"]{
  --bg: #f5f7fa;
  --panel: #ffffff;
  --panel2: #fbfcfe;
  --text: #17202a;
  --muted: #5b6b7b;
  --border: #e3e8ef;
  --accent: #0b66ff;
  --danger: #d64545;
  --shadow: 0 10px 30px rgba(0,0,0,.10);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
}

/* ---------------- Topbar (compact) ---------------- */
.topbar{
  position:sticky;
  top:0;
  z-index:40;
  display:flex;
  gap:12px;
  align-items:center;
  justify-content:space-between;
  padding:6px 12px;
  border-bottom:1px solid var(--border);
  background:linear-gradient(to bottom, var(--panel), var(--panel2));
}

.brand{display:flex; align-items:center; gap:10px;}
.brand-logo{
  width:100px;
  height:42px;
  object-fit:contain;
  border:none;
  border-radius:0;
  background:transparent;
  box-shadow:none;
}

.topbar-actions{
  display:flex;
  gap:8px;
  align-items:center;
  min-width: 320px;
  justify-content:flex-end;
}

.search{
  display:flex;
  align-items:center;
  gap:8px;
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:999px;
  padding:4px 8px;
  min-width:240px;
}
.search input{
  width:100%;
  border:none;
  outline:none;
  background:transparent;
  color:var(--text);
  font-size:13px;
}

.select{
  border:1px solid var(--border);
  background:var(--panel);
  color:var(--text);
  border-radius:10px;
  padding:6px 8px;
  font-size:13px;
}

.btn{
  border:1px solid var(--border);
  background:var(--panel);
  color:var(--text);
  padding:6px 10px;
  border-radius:12px;
  cursor:pointer;
  transition:transform .05s ease, background .15s ease, border-color .15s ease;
}
.btn:hover{background:rgba(255,255,255,.03)}
.btn:active{transform:translateY(1px)}
.btn.primary{
  border-color: rgba(74,163,255,.4);
  background: rgba(74,163,255,.16);
}
.btn.small{padding:6px 9px; border-radius:10px; font-size:12px;}
.btn.danger{border-color: rgba(255,93,93,.45); background: rgba(255,93,93,.12);}

.icon-btn{
  border:none;
  background:transparent;
  color:var(--muted);
  cursor:pointer;
  font-size:14px;
  padding:2px 6px;
}
.icon-btn:hover{color:var(--text)}

/* ---------------- Mega menu ---------------- */
.mega-menu{
  position: fixed;
  top: 52px;
  right: 12px;
  width: min(520px, calc(100vw - 24px));
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
  background: linear-gradient(to bottom, var(--panel), var(--panel2));
  z-index: 50;
  overflow: hidden;
}
.mega-menu.hidden{display:none;}

.mega-menu-grid{
  display:grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  padding: 12px;
}

.mega-item{
  display:flex;
  gap:12px;
  align-items:flex-start;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 14px 12px;
  background: rgba(255,255,255,.02);
  cursor: pointer;
  transition: background .15s ease, border-color .15s ease, transform .05s ease;
  user-select:none;
}
.mega-item:hover{
  background: rgba(74,163,255,.10);
  border-color: rgba(74,163,255,.25);
}
.mega-item:active{transform: translateY(1px);}

.mega-ico{
  width: 36px;
  height: 36px;
  border-radius: 12px;
  display:grid;
  place-items:center;
  background: rgba(74,163,255,.10);
  border: 1px solid rgba(74,163,255,.18);
  color: var(--accent);
  flex: 0 0 36px;
}
.mega-ico svg{
  width: 18px;
  height: 18px;
  display:block;
}
.mega-text{
  display:flex;
  flex-direction:column;
  gap:3px;
  min-width:0;
}
.mega-title{
  font-weight: 850;
  color: var(--text);
  line-height: 1.1;
}
.mega-sub{
  font-size: 12px;
  color: var(--muted);
  line-height: 1.3;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}

/* ---------------- Layout + Resizers ---------------- */
.layout{
  display:grid;
  grid-template-columns: var(--sidebar-w) 10px minmax(0, 1fr);
  height: calc(100vh - 54px);
}

.resizer{
  cursor: col-resize;
  position: relative;
  background: transparent;
  touch-action: none;
}
.resizer::before{
  content:"";
  position:absolute;
  top: 18%;
  bottom: 18%;
  left: 50%;
  width: 2px;
  transform: translateX(-50%);
  border-radius: 999px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.06);
}
[data-theme="light"] .resizer::before{
  background: rgba(0,0,0,.08);
  border: 1px solid rgba(0,0,0,.06);
}
.resizer:hover::before{
  background: rgba(74,163,255,.35);
  border-color: rgba(74,163,255,.25);
}
.is-resizing *{
  user-select:none!important;
  cursor:col-resize!important;
}

/* ---------------- Sidebar ---------------- */
.sidebar{
  border-right:1px solid var(--border);
  background:var(--panel2);
  display:flex;
  flex-direction:column;
  min-width:180px;
}
.sidebar-header{padding:14px 14px 8px;}
.sidebar-title{font-weight:800; color:var(--muted); font-size:12px; text-transform:uppercase; letter-spacing:.12em;}
.sidebar-mailbox{
  margin-top: 6px;
  font-size: 12px;
  color: var(--muted);
  word-break: break-all;
}

.folder-list{padding:6px; display:flex; flex-direction:column; gap:4px;}
.folder{
  display:flex; align-items:center; justify-content:space-between;
  gap:10px;
  padding:10px 10px;
  border-radius:12px;
  cursor:pointer;
  border:1px solid transparent;
}
.folder:hover{background:rgba(255,255,255,.03)}
.folder.active{
  background:rgba(74,163,255,.12);
  border-color:rgba(74,163,255,.25);
}
.folder .name{display:flex; align-items:center; gap:10px;}
.badge{
  font-size:12px;
  color:var(--text);
  background:rgba(255,255,255,.06);
  border:1px solid var(--border);
  padding:2px 8px;
  border-radius:999px;
}

.sidebar-footer{margin-top:auto; padding:12px 14px; border-top:1px solid var(--border);}
.hint{color:var(--muted); font-size:12px; line-height:1.35;}

/* Storage bar */
.storage{
  margin: 8px 14px 0;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(255,255,255,.02);
}
.storage-top{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:10px;
}
.storage-label{
  font-size:12px;
  color: var(--muted);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.storage-text{
  font-size:12px;
  color: var(--muted);
}
.storage-bar{
  margin-top:10px;
  height:10px;
  border-radius:999px;
  border:1px solid var(--border);
  background: rgba(255,255,255,.03);
  overflow:hidden;
}
.storage-fill{
  height:100%;
  background: rgba(74,163,255,.45);
}
.storage-icon{
  margin-top: 12px;
  display:flex;
  align-items:center;
  justify-content:center;
  padding: 10px;
  border-radius: 14px;
  border: 1px dashed rgba(255,255,255,.14);
  background: rgba(255,255,255,.02);
}
[data-theme="light"] .storage-icon{
  border: 1px dashed rgba(0,0,0,.12);
  background: rgba(0,0,0,.02);
}
.storage-icon img{
  max-width: 100%;
  height: 54px;
  object-fit: contain;
  opacity: .92;
}

/* ---------------- App view container (NEW) ---------------- */
/* Each app view should fill the content area and behave like Mail does */
.app-view{
  display:flex;
  width:100%;
  min-width:0;
  min-height:0;
}
.app-view.hidden{display:none;}

/* ---------------- Shared pane styling ---------------- */
.list-pane, .preview-pane{
  display:flex;
  flex-direction:column;
  min-width:0;
  min-height:0;
  background:var(--panel);
}
.list-pane{
  flex: 0 0 var(--list-w);
  min-width: 320px;
  border-right:1px solid var(--border);
}
.preview-pane{
  flex: 1 1 auto;
  min-width:0;
  width:auto;
  max-width:none;
}
.pane-header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:12px 14px;
  border-bottom:1px solid var(--border);
  background:linear-gradient(to bottom, var(--panel), var(--panel2));
}
.pane-title{font-weight:800;}
.pane-actions{display:flex; gap:8px; align-items:center;}

/* select all */
.select-all{
  display:flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  color:var(--muted);
  user-select:none;
}
.select-all input{
  width:14px;
  height:14px;
  accent-color: var(--accent);
}

/* message list / generic list container */
.message-list{
  overflow:auto;
  padding:8px;
  display:flex;
  flex-direction:column;
  gap:6px;
  min-height:0;
}

.msg{
  border:1px solid var(--border);
  background:rgba(255,255,255,.02);
  border-radius:var(--radius);
  padding:10px 12px;
  cursor:pointer;
}
.msg:hover{background:rgba(255,255,255,.04)}
.msg.active{
  border-color:rgba(74,163,255,.35);
  box-shadow: 0 0 0 3px rgba(74,163,255,.10);
}
.msg .row{display:flex; justify-content:space-between; gap:10px; align-items:center;}
.row-left{display:flex; align-items:center; gap:10px; min-width:0;}
.msg-check{width:14px; height:14px; accent-color: var(--accent);}

.msg .from{
  font-weight:650;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  max-width: 260px;
}
.msg .date{color:var(--muted); font-size:12px; white-space:nowrap;}
.msg.unread .from, .msg.unread .subject{font-weight:800}
.dot{
  width:8px; height:8px; border-radius:50%;
  background: var(--accent);
  display:inline-block;
  margin-right:8px;
}

/* Subject + snippet */
.msg .subject{
  margin-top:4px;
  font-size:13px;
  color:var(--text);
  white-space: normal;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
}
.msg .snippet{
  margin-top:4px;
  font-size:12px;
  color:var(--muted);
  white-space: normal;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  line-height: 1.25;
}

/* Preview */
.preview{
  overflow:auto;
  padding:18px 18px 26px;
  width:100%;
  max-width:none;
  min-height:0;
}
.preview.empty{display:grid; place-items:center; height:100%}
.empty-state{text-align:center; color:var(--muted)}
.empty-icon{font-size:38px}
.empty-title{font-weight:800; color:var(--text); margin-top:10px}
.empty-subtitle{margin-top:6px}

.mail-head{
  display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
  border-bottom:1px solid var(--border);
  padding-bottom:12px;
}
.mail-subject{font-size:18px; font-weight:850; margin:0 0 6px}
.meta{color:var(--muted); font-size:12px; line-height:1.45}
.meta b{color:var(--text); font-weight:700}
.mail-body{padding-top:14px; color:var(--text); line-height:1.55; white-space:pre-wrap}

/* Preview more button area */
.preview-more{
  margin-top: 14px;
  display:flex;
  justify-content:center;
}
.preview-more.hidden{display:none;}
.preview-more .btn{
  border-color: rgba(74,163,255,.28);
  background: rgba(74,163,255,.10);
}
.preview-more .btn:hover{
  background: rgba(74,163,255,.14);
}

/* Pagination */
.pagination{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding: 10px 12px;
  border-top: 1px solid var(--border);
  background: linear-gradient(to bottom, var(--panel), var(--panel2));
}
.page-info{
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}

/* Modal */
.backdrop{
  position:fixed; inset:0;
  background:rgba(0,0,0,.5);
  z-index:50;
}
.modal{
  position:fixed;
  top:50%; left:50%;
  transform:translate(-50%,-50%);
  width:min(720px, 92vw);
  max-height: 86vh;
  overflow:auto;
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:18px;
  box-shadow:var(--shadow);
  z-index:60;
}
.hidden{display:none}
.modal-header, .modal-footer{
  padding:12px 14px;
  border-bottom:1px solid var(--border);
  display:flex; align-items:center; justify-content:space-between;
}
.modal-footer{border-top:1px solid var(--border); border-bottom:none; justify-content:flex-end; gap:10px;}
.modal-title{font-weight:850;}
.modal-body{padding:12px 14px; display:flex; flex-direction:column; gap:12px;}
.field{display:flex; flex-direction:column; gap:6px; font-size:12px; color:var(--muted);}
.field input, .field textarea{
  width:100%;
  border:1px solid var(--border);
  border-radius:12px;
  background:var(--panel2);
  color:var(--text);
  padding:10px 10px;
  outline:none;
}

/* Toast */
.toast{
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  z-index: 80;
  background: rgba(0,0,0,.15);
  backdrop-filter: blur(2px);
}
.toast.hidden{display:none;}
.toast-card{
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(17,21,27,.85);
  color: var(--text);
  box-shadow: var(--shadow);
  font-weight: 700;
}

/* Mobile */
@media (max-width: 980px){
  .layout{grid-template-columns: 1fr;}
  .sidebar, #resizerSidebar{display:none;}
  .app-view{display:block;}
  #resizerContent{display:none;}
  .preview-pane{display:none;}
  .topbar-actions{min-width: 0;}
  .list-pane{flex:1; border-right:none; min-width:0;}
  .mega-menu{
    left: 12px;
    right: 12px;
    top: 52px;
    width: auto;
  }
}

@media (max-width: 520px){
  .mega-menu-grid{ grid-template-columns: 1fr; }
  .mega-sub{ white-space: normal; }
}
/* Standout Menu Button */
.menu-btn{
  border-color: rgba(74,163,255,.55);
  background: rgba(74,163,255,.14);
  font-weight: 750;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Menu button highlighted when mega menu is open */
.menu-btn.open{
  background: rgba(74,163,255,.28);
  border-color: rgba(74,163,255,.85);
  box-shadow: 0 0 0 3px rgba(74,163,255,.18);
}

.menu-btn:hover{
  background: rgba(74,163,255,.22);
}

.menu-icon{
  font-size: 15px;
  opacity: 0.95;
}

.menu-caret{
  font-size: 12px;
  opacity: 0.75;
  margin-left: 2px;
}
/* ---------------- Login page ---------------- */
/* Login icon above card */
.login-icon{
  display:flex;
  justify-content:center;
  margin-bottom: 14px;
}

.login-icon img{
  height: 72px;
  object-fit: contain;
  opacity: 0.95;
}

.login-wrap{
  height: calc(100vh - 54px);
  display:flex;
  flex-direction:column;
  align-items:center;

  /* Move login box closer to the top logo */
  justify-content:flex-start;

  padding-top: 40px;
  padding-left: 18px;
  padding-right: 18px;
}

.login-card{
  width: min(520px, 92vw);
  border: 1px solid var(--border);
  border-radius: 18px;
  background: linear-gradient(to bottom, var(--panel), var(--panel2));
  box-shadow: var(--shadow);
  overflow:hidden;
}

.login-head{
  padding: 16px 16px 10px;
  border-bottom: 1px solid var(--border);
}

.login-title{
  font-weight: 900;
  font-size: 18px;
}

.login-sub{
  margin-top: 6px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.35;
}

.login-body{
  padding: 14px 16px 10px;
  display:flex;
  flex-direction:column;
  gap: 12px;
}

.login-hint{
  color: var(--muted);
  font-size: 12px;
  line-height: 1.35;
}

.login-error{
  border: 1px solid rgba(255,93,93,.45);
  background: rgba(255,93,93,.10);
  color: var(--text);
  border-radius: 14px;
  padding: 10px 12px;
  font-size: 12px;
}

.login-footer{
  padding: 12px 16px 16px;
  border-top: 1px solid var(--border);
  display:flex;
  justify-content:flex-end;
}

.login-footnote{
  padding: 10px 16px 14px;
  color: var(--muted);
  font-size: 12px;
  text-align:center;
  border-top: 1px solid var(--border);
  background: rgba(255,255,255,.02);
}
/* =========================================================
   Responsive hardening (non-destructive overrides)
   ========================================================= */

/* 1) Allow topbar to wrap cleanly on smaller widths */
.topbar{
  flex-wrap: wrap;
  align-items: center;
}

/* Let actions wrap and not force horizontal scrolling */
.topbar-actions{
  flex-wrap: wrap;
  min-width: 0;         /* overrides min-width:320px */
  width: 100%;
  justify-content: flex-end;
}

/* 2) Search: allow it to shrink and grow */
.search{
  min-width: 0;         /* overrides min-width:240px */
  flex: 1 1 260px;      /* flexible row item */
  max-width: 560px;
}
.search input{ min-width: 0; }

/* 3) Sort dropdown should not cause overflow */
.select{
  max-width: 220px;
}

/* 4) Layout height: do not depend on a single fixed topbar height */
.layout{
  height: auto;
  min-height: calc(100vh - 54px);
}

/* 5) Mega menu: auto-fit columns for mid-sized screens */
.mega-menu-grid{
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

/* 6) Better behavior for “tablet” widths */
@media (max-width: 900px){
  .topbar-actions{
    justify-content: flex-start;
  }

  .search{
    flex: 1 1 100%;
    max-width: none;
  }

  .select{
    flex: 1 1 160px;
    max-width: none;
  }

  .btn, .btn.small{
    white-space: nowrap;
  }
}

/* 7) Tiny screens: keep controls stacked and readable */
@media (max-width: 520px){
  .topbar-actions{
    gap: 8px;
  }

  .btn{
    padding: 7px 10px;
  }

  .mega-menu{
    top: 56px; /* a touch more breathing room when topbar wraps */
  }
}
/* =========================================================
   Mobile Footer Bar (no overlap with pagination)
   ========================================================= */

@media (max-width: 980px){

  /* Sidebar icon hidden because sidebar is hidden */
  .storage-icon{
    display: none;
  }

  /* Reserve space at the bottom of the app */
  .layout{
    padding-bottom: 80px; /* ensures pagination stays visible */
  }

  /* Footer bar */
  body::after{
    content: "";
    position: fixed;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 72px;

    background: var(--panel2);
    border-top: 1px solid var(--border);

    background-image: url("NSATS_QL_White.png");
    background-repeat: no-repeat;
    background-position: center;
    background-size: 140px auto;

    z-index: 50;
  }
}