:root {
    --primary: #c0272d;
    --primary-dark: #931f24;
    --accent: #f5a623;
    --danger: #b91c1c;
    --ok: #16a34a;
    --warn: #d97706;
    --bg: #f4f1ec;
    --card-bg: #ffffff;
    --border: #e4dfd6;
    --text: #201c1a;
    --text-muted: #6b625a;
}

* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: 'Segoe UI', Roboto, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
}

/* ---- Topbar ---- */
.topbar { background: linear-gradient(90deg, #1a1a1a 0%, var(--primary) 55%, var(--primary-dark) 100%); color: #fff; box-shadow: 0 2px 8px rgba(0,0,0,.25); border-bottom: 3px solid var(--accent); }
.topbar-inner { max-width: 1100px; margin: 0 auto; display: flex; align-items: center; gap: 20px; padding: 12px 16px; flex-wrap: wrap; }
.brand { color: #fff; font-weight: 800; font-size: 16px; text-decoration: none; letter-spacing: .02em; line-height: 1.3; }
.brand small { display: block; font-size: 10px; font-weight: 500; color: var(--accent); letter-spacing: .08em; }
.mainnav { display: flex; gap: 16px; flex: 1; flex-wrap: wrap; }
.mainnav a { color: #f4d7a8; text-decoration: none; font-size: 14px; padding: 6px 4px; font-weight: 500; }
.mainnav a:hover { color: #fff; }
.userbox { display: flex; align-items: center; gap: 10px; font-size: 14px; }
.btn-logout { color: #fff; background: rgba(255,255,255,.15); padding: 6px 12px; border-radius: 6px; text-decoration: none; }
.btn-logout:hover { background: rgba(255,255,255,.25); }

/* ---- Layout ---- */
.container { max-width: 1100px; margin: 0 auto; padding: 20px 16px 60px; }
.container-full { max-width: 100%; padding: 20px 20px 60px; }
.footer { text-align: center; padding: 20px; color: var(--text-muted); font-size: 12px; }

.page-head { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; margin-bottom: 16px; }
.page-head h1 { margin: 0; font-size: 22px; }
.section-title { font-size: 16px; margin: 24px 0 12px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .04em; }
.back-link { display: inline-block; margin-bottom: 12px; color: var(--primary); text-decoration: none; font-size: 14px; }

/* ---- Buttons ---- */
.btn { display: inline-block; border: none; padding: 8px 16px; border-radius: 6px; cursor: pointer; font-size: 14px; text-decoration: none; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { background: #64748b; color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-sm { padding: 5px 10px; font-size: 13px; }
.btn-block { width: 100%; }

/* ---- Alerts ---- */
.alert { padding: 10px 14px; border-radius: 6px; margin-bottom: 14px; font-size: 14px; }
.alert-ok { background: #dcfce7; color: #166534; }
.alert-error { background: #fee2e2; color: #991b1b; }

/* ---- Panels/forms ---- */
.panel { background: var(--card-bg); border: 1px solid var(--border); border-radius: 10px; padding: 18px; margin-bottom: 18px; }
.panel h3 { margin-top: 0; }
.hidden { display: none; }
.form-inline { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 16px; }
.form-grid label { display: flex; flex-direction: column; font-size: 13px; color: var(--text-muted); gap: 4px; }
.form-grid label.full { grid-column: 1 / -1; }
.form-grid button, .form-inline button { grid-column: 1 / -1; justify-self: start; }
input, select, textarea {
    padding: 8px 10px; border: 1px solid var(--border); border-radius: 6px; font-size: 14px; font-family: inherit; width: 100%;
}
.inline-input { min-width: 120px; }
@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } }

/* ---- Stat cards ---- */
.stat-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px,1fr)); gap: 14px; margin-bottom: 10px; }
.stat-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: 10px; padding: 18px; text-align: center; }
.stat-card.stat-warning { border-color: #fbbf24; background: #fffbeb; }
.stat-num { font-size: 28px; font-weight: 700; color: var(--primary); }
.stat-warning .stat-num { color: var(--warn); }
.stat-label { color: var(--text-muted); font-size: 13px; margin-top: 4px; }

/* ---- Team grid ---- */
.team-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px,1fr)); gap: 12px; }
.team-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px; text-decoration: none; color: var(--text); display: block; }
.team-card:hover { border-color: var(--primary); box-shadow: 0 2px 8px rgba(37,99,235,.12); }
.team-card-name { font-weight: 600; margin-bottom: 8px; }
.team-card-body { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; font-size: 13px; }

/* ---- Badges ---- */
.badge { display: inline-block; padding: 3px 9px; border-radius: 20px; font-size: 12px; font-weight: 600; background: #e2e8f0; color: #475569; }
.badge-ok { background: #dcfce7; color: #166534; }
.badge-warn { background: #fef3c7; color: #92400e; }
.muc-thap { background: #e2e8f0; color: #475569; }
.muc-trungbinh { background: #dbeafe; color: #1e40af; }
.muc-cao { background: #fed7aa; color: #9a3412; }
.muc-khancap { background: #fecaca; color: #991b1b; }
.tt-chuabatdau { background: #e2e8f0; color: #475569; }
.tt-dangthuchien { background: #dbeafe; color: #1e40af; }
.tt-tamdung { background: #fef3c7; color: #92400e; }
.tt-gapvande { background: #fecaca; color: #991b1b; }
.tt-hoanthanh { background: #dcfce7; color: #166534; }
.tt-huy { background: #e2e8f0; color: #94a3b8; }
.tt-truc { background: #e0e7ff; color: #3730a3; }
.tt-huanluyen { background: #ede9fe; color: #5b21b6; }
.tt-congtac { background: #fce7f3; color: #9d174d; }

/* ---- Bảng nhật ký công tác (grid nhập liệu hàng loạt) ---- */
.table-scroll { overflow-x: auto; background: var(--card-bg); border: 1px solid var(--border); border-radius: 10px; }
.grid-table { width: 100%; border-collapse: collapse; min-width: 900px; }
.grid-table th, .grid-table td { border: 1px solid var(--border); padding: 8px 10px; font-size: 13px; vertical-align: top; }
.grid-table thead th { background: #f8fafc; color: var(--text-muted); font-size: 12px; text-transform: uppercase; text-align: center; }
.grid-table thead tr.sub-head th { text-transform: none; font-size: 11px; font-weight: 500; }
.col-stt { width: 40px; text-align: center; }
.col-name { min-width: 150px; font-weight: 600; }
.cell-nhap { min-width: 220px; }
.o-noidung { width: 100%; resize: vertical; font-size: 13px; margin-bottom: 6px; }
.cell-row2 { display: flex; gap: 6px; }
.o-trangthai { flex: 1; font-size: 12px; padding: 6px; }
.o-ghichu { flex: 1; font-size: 12px; padding: 6px; }
.rp-noidung { white-space: pre-line; margin-bottom: 6px; }
.rp-ghichu { font-size: 12px; color: var(--text-muted); }
.empty-cell { color: #c7c2ba; font-size: 12px; }

@media print {
    .no-print, .topbar, .footer { display: none !important; }
    .container { padding: 0; max-width: 100%; }
    .grid-table { min-width: 0; }
    body { background: #fff; }
}

/* ---- Tables ---- */
.data-table { width: 100%; border-collapse: collapse; background: var(--card-bg); border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.data-table th, .data-table td { padding: 10px 12px; border-bottom: 1px solid var(--border); text-align: left; font-size: 14px; }
.data-table th { background: #f8fafc; color: var(--text-muted); font-size: 12px; text-transform: uppercase; }

/* ---- Task list ---- */
.filter-bar { margin-bottom: 16px; }
.task-list { display: flex; flex-direction: column; gap: 10px; }
.task-item { background: var(--card-bg); border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px; text-decoration: none; color: var(--text); display: block; }
.task-item:hover { border-color: var(--primary); }
.task-item-top { display: flex; gap: 6px; margin-bottom: 6px; flex-wrap: wrap; }
.task-item-title { font-weight: 600; font-size: 15px; margin-bottom: 6px; }
.task-item-meta { display: flex; gap: 14px; flex-wrap: wrap; font-size: 13px; color: var(--text-muted); }
.empty-state { color: var(--text-muted); text-align: center; padding: 30px; }

/* ---- Task detail ---- */
.task-detail-head { background: var(--card-bg); border: 1px solid var(--border); border-radius: 10px; padding: 18px; margin-bottom: 18px; }
.task-detail-head h1 { margin: 10px 0; font-size: 20px; }
.task-desc { color: var(--text-muted); white-space: pre-line; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; align-items: start; }
@media (max-width: 800px) { .two-col { grid-template-columns: 1fr; } }

/* ---- Report timeline ---- */
.report-timeline { display: flex; flex-direction: column; gap: 12px; }
.report-item { border: 1px solid var(--border); border-radius: 8px; padding: 12px 14px; }
.report-item-link { text-decoration: none; color: var(--text); display: block; background: var(--card-bg); }
.report-item-link:hover { border-color: var(--primary); }
.report-item-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; }
.report-date { font-size: 13px; color: var(--text-muted); }
.report-content { margin: 6px 0; font-size: 14px; white-space: pre-line; }
.report-author { font-size: 12px; color: var(--text-muted); }

/* ---- Login page ---- */
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: linear-gradient(135deg,#1a1a1a,var(--primary-dark) 60%,var(--primary)); }
.login-box { background: #fff; padding: 32px; border-radius: 12px; width: 340px; max-width: 90vw; box-shadow: 0 10px 40px rgba(0,0,0,.35); border-top: 4px solid var(--accent); }
.login-box h1 { text-align: center; font-size: 20px; margin-bottom: 4px; }
.login-box .sub { text-align: center; color: var(--text-muted); font-size: 13px; margin-bottom: 20px; }
.login-box label { display: block; font-size: 13px; color: var(--text-muted); margin: 10px 0 4px; }