:root {
    --iu-blue: #0f4aa1;
    --iu-blue-dark: #0b3a82;
    --iu-blue-tint: #eef4fd;
    --iu-amber: #fac775;
    --iu-amber-text: #412402;
    --side: #17233a;
    --side-hover: #22324f;
    --side-sub: #101a2d;
    --ink: #1f2933;
    --ink-soft: #5b6673;
    --line: #dde3ec;
    --page: #f4f6fa;
    --side-w: 250px;
    --head-h: 88px;
}

html, body { height: 100%; }
body.qato-body { margin: 0; background: var(--page); color: var(--ink); font-size: 14px; }

/* ---------- Header: logo + thanh tiêu đề cùng một hàng ---------- */
.qato-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--head-h);
    display: flex;
    align-items: stretch;
    background: #fff;
    border-bottom: 4px solid var(--iu-amber);
    z-index: 1040;
}
.qato-menubtn {
    display: none;
    align-self: center;
    margin: 0 8px 0 12px;
    border: 1px solid var(--line);
    background: #fff;
    border-radius: 4px;
    padding: 6px 10px;
    color: var(--iu-blue);
}
.qato-brand {
    width: var(--side-w);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 18px;
    text-decoration: none;
}
.qato-brand img { height: 56px; width: auto; }
.qato-brand-text {
    font-size: 18px;
    line-height: 1.25;
    letter-spacing: 1px;
    color: var(--iu-blue);
}
.qato-bar {
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 0 28px;
    background: var(--iu-blue);
    color: #fff;
}
.qato-bar-title {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.qato-bar-title .glyphicon { top: 0; color: var(--iu-amber); }
.qato-user { display: flex; align-items: center; flex-shrink: 0; }
.qato-user ul { display: flex; gap: 4px; list-style: none; margin: 0; padding: 0; float: none; }
.qato-user li { float: none; }
.qato-user a { display: block; padding: 8px 10px; color: #fff; text-decoration: none; background: transparent; }
.qato-user a:hover, .qato-user a:focus { color: var(--iu-amber); background: transparent; }

/* ---------- Sidebar (đứng yên, nằm dưới header) ---------- */
.qato-side {
    position: fixed;
    top: var(--head-h); left: 0; bottom: 0;
    width: var(--side-w);
    background: var(--side);
    z-index: 1030;
    display: flex;
    flex-direction: column;
}
.qato-menu { flex: 1; overflow-y: auto; padding: 14px 0 20px; }
.qato-menu .qm-label { padding: 6px 20px 10px; font-size: 16px; color: #8fa0bb; }
.qato-menu ul { list-style: none; margin: 0; padding: 0; }
.qato-menu a {
    display: flex; align-items: center; gap: 12px;
    color: #e5e9f0; text-decoration: none;
    border-left: 3px solid transparent;
}
.qato-menu a:hover { background: var(--side-hover); color: #fff; }
.qm-l1 { padding: 12px 18px; }
.qm-l1 .glyphicon { top: 0; flex: 0 0 18px; width: 18px; text-align: center; font-size: 15px; }
.qm-l1 .qm-text { flex: 1; }
.qm-l1 .qm-chev { flex: 0 0 auto; width: auto; padding: 4px 2px; font-size: 10px; color: #8fa0bb; transition: transform .15s ease; }
.qato-menu a.active {
    background: var(--iu-amber); color: var(--iu-amber-text);
    font-weight: 500; border-left-color: #854f0b;
}
.qato-menu a.active .qm-chev { color: var(--iu-amber-text); }
.qm-group.open > .qm-l1:not(.active) { background: var(--side-hover); }

/* Menu con: hiện khi rê chuột, hoặc khi đang ở mục đó (open) */
.qm-sub { display: none; background: var(--side-sub); padding: 4px 0; }
.qm-group.open > .qm-sub,
.qm-group:hover > .qm-sub { display: block; }
.qm-group.open > .qm-l1 .qm-chev,
.qm-group:hover > .qm-l1 .qm-chev { transform: rotate(90deg); }
.qm-sub a {
    padding: 9px 18px 9px 51px;
    font-size: 13px;
    color: #h7d0df;
}
.qm-sub a.current { color: #fac775; font-weight: 500; background: var(--side-hover); border-left-color: var(--iu-amber); }

/* ---------- Main ---------- */
.qato-main {
    margin-left: var(--side-w);
    padding-top: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
.qato-content {
    flex: 1 0 auto;
    padding: 4px 28px 0px;
    padding-top: 10px !important;
}
.qato-title { margin: 0 0 0px; font-size: 22px; font-weight: 500; color: var(--ink); }
.qato-hello { margin: 0 0 0px; color: var(--ink-soft); }
.qato-hello strong { color: var(--iu-blue); font-weight: 500; }

/* ---------- Panels ---------- */
.qato-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
    align-items: start;
}
.qato-grid .span2 { grid-column: 1 / -1; }
.qato-grid.qato-single { grid-template-columns: minmax(0, 1fr); }

.qato-panel {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 1px 4px rgba(15, 74, 161, .08);
    overflow: hidden;
}
.qato-panel-head {
    display: flex; align-items: center; gap: 12px;
    padding: 14px 18px;
    background: var(--iu-blue-tint);
    border-bottom: 1px solid #d3e1f6;
}
.qato-panel-head .ico {
    flex: 0 0 34px; width: 34px; height: 34px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 50%;
    background: var(--iu-blue); color: #fff;
}
.qato-panel-head .ico .glyphicon { top: 0; font-size: 15px; }
.qato-panel-head h2 { margin: 0; font-size: 16px; font-weight: 500; color: var(--iu-blue-dark); }

.qato-item {
    display: flex; align-items: center; gap: 14px;
    padding: 14px 18px;
    border-top: 1px solid var(--line);
    color: var(--ink); text-decoration: none;
}
.qato-panel-head + .qato-item, .qato-panel-head + div > .qato-item:first-child { border-top: 0; }
.qato-item:first-of-type { border-top: 0; }
.qato-item > .glyphicon:first-child { top: 0; flex: 0 0 20px; text-align: center; color: #6b86b8; }
.qato-item .t { flex: 1; }
.qato-item .go { top: 0; color: #9aa5b4; font-size: 12px; transition: transform .15s ease; }
a.qato-item:hover { background: #f3f7fd; color: var(--iu-blue); text-decoration: none; }
a.qato-item:hover .go { transform: translateX(4px); color: var(--iu-blue); }

.qato-chip { padding: 1px 8px; font-size: 11px; border-radius: 4px; background: var(--iu-blue-tint); color: var(--iu-blue-dark); }
.qato-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.qato-badge { display: inline-block; padding: 2px 10px; font-size: 12px; border-radius: 4px; }
.qato-badge.done { background: #e3f4e6; color: #1e6b2e; }
.qato-badge.todo { background: #fdf0d5; color: #7a4a05; }

.qato-btn {
    display: inline-block; padding: 5px 14px; font-size: 13px;
    color: var(--iu-blue); background: #fff; border: 1px solid var(--iu-blue);
    border-radius: 4px; text-decoration: none;
}
.qato-btn:hover { background: var(--iu-blue); color: #fff; text-decoration: none; }
.qato-btn.solid { background: var(--iu-blue); color: #fff; }
.qato-btn.solid:hover { background: var(--iu-blue-dark); }

.qato-notes { padding: 14px 18px; background: #fafbfd; border-top: 1px solid var(--line); color: var(--ink-soft); }
.qato-notes h3 { margin: 0 0 8px; font-size: 14px; font-weight: 500; color: var(--ink); }
.qato-notes ul { margin: 0 0 8px; padding-left: 18px; }
.qato-notes li { margin-bottom: 4px; }
.qato-empty { padding: 16px 18px; color: var(--ink-soft); }

/* ---------- Footer ---------- */
.qato-footer {
    flex-shrink: 0;
    display: flex; align-items: center; justify-content: space-between; gap: 16px;
    padding: 14px 28px;
    background: #fff; border-top: 1px solid var(--line);
    color: var(--ink-soft); font-size: 12px; text-align: center;
}
.qato-footer img { height: 48px; width: auto; }

/* ---------- Responsive ---------- */
@media (max-width: 1199px) {
    .qato-grid { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 991px) {
    :root { --head-h: 72px; }
    .qato-side { transform: translateX(-100%); transition: transform .2s ease; }
    .qato-side.open { transform: none; }
    .qato-main { margin-left: 0; }
    .qato-menubtn { display: inline-block; }
    .qato-brand { width: auto; padding: 0 12px 0 4px; }
    .qato-brand img { height: 44px; }
    .qato-brand-text { display: none; }
    .qato-bar { padding: 0 16px; }
    .qato-bar-title { font-size: 17px; }
    .qato-content { padding: 16px; }
    .qato-footer { padding: 12px 16px; }
    .qato-footer img { height: 36px; }
}
@media (max-width: 575px) {
    .qato-bar-title .t-full { display: none; }
    .qato-item { flex-wrap: wrap; }
}