/* =========================================================
 * STYLE.CSS - Giao diện chung
 * Sửa file này nhớ tăng APP_VERSION trong config/config.php
 * Đổi hình nền: chép ảnh vào assets/img/ rồi sửa biến --bg-image
 * ========================================================= */
:root {
    --primary: #1565c0;
    --primary-d: #0d47a1;
    --accent: #f9a825;
    --dark: #0b2a5b;
    --bg: #eef2f7;
    --card: #fff;
    --text: #1f2937;
    --muted: #6b7280;
    --border: #dde3ea;
    --danger: #c62828;
    --ok: #2e7d32;
    --radius: 8px;
    --bg-image: url('../img/bg.svg');
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
    font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
    font-size: 15px; color: var(--text); background: var(--bg);
    min-height: 100vh; display: flex; flex-direction: column;
}
a { color: var(--primary); text-decoration: none; }
h1, h2, h3 { margin: 0 0 12px; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.c { text-align: center; }
.nowrap { white-space: nowrap; }
.wrap { min-width: 220px; }
.req { color: var(--danger); font-style: normal; }

/* ---------- Form ---------- */
label { display: block; font-weight: 600; margin: 10px 0 5px; font-size: 14px; }
input, select, textarea {
    width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 6px; min-height: 42px;
    font: inherit; background: #fff;
}
input:focus, select:focus, textarea:focus { outline: 2px solid rgba(21,101,192,.25); border-color: var(--primary); }
input[type=checkbox] { width: auto; transform: scale(1.2); }
textarea { resize: vertical; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 0 14px; }
.grid .span2 { grid-column: span 2; }
.grid .span3 { grid-column: 1 / -1; }
.grid .actions { display: flex; gap: 8px; align-items: flex-end; padding-top: 8px; }
form.inline { display: inline-flex; gap: 6px; align-items: center; margin: 0; }
form.inline input { width: 300px; }

/* ---------- Button ---------- */
.btn {
    display: inline-block; padding: 8px 16px; border-radius: 6px; border: 1px solid transparent;
    cursor: pointer; font: inherit; font-weight: 600; white-space: nowrap;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-d); }
.btn-primary:disabled { opacity: .6; cursor: wait; }
.btn-light { background: #fff; border-color: var(--border); color: var(--text); }
.btn-light:hover { background: #f3f4f6; }
.btn-block { width: 100%; margin-top: 16px; padding: 11px; }
.btn-icon { background: none; border: 0; cursor: pointer; font-size: 18px; padding: 4px 6px; border-radius: 6px; }
.btn-icon:hover { background: #eef3fb; }
.btn-lg { padding: 11px 22px; font-size: 15px; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #a61d1d; }

/* ---------- Alert / Tag ---------- */
.alert { padding: 10px 14px; border-radius: 6px; margin-bottom: 12px; white-space: pre-line; }
.alert-success { background: #e8f5e9; color: var(--ok); }
.alert-danger  { background: #ffebee; color: var(--danger); }
.alert-warning { background: #fff8e1; color: #8d6e00; }
.alert-info    { background: #e3f2fd; color: var(--primary-d); }
.tag { padding: 2px 8px; border-radius: 10px; font-size: 12px; }
.tag-ok { background: #e8f5e9; color: var(--ok); }
.tag-off { background: #eceff1; color: var(--muted); }
.badge { background: var(--accent); color: #000; font-size: 10px; padding: 1px 5px; border-radius: 4px; }

/* ---------- Login ---------- */
.login-page {
    align-items: center; justify-content: center;
    background: var(--bg-image) center / cover no-repeat fixed;
}
.login-box {
    width: 92%; max-width: 380px; background: rgba(255,255,255,.96); padding: 32px 28px;
    border-radius: 14px; box-shadow: 0 20px 50px rgba(0,0,0,.35); text-align: center;
}
.login-box form { text-align: left; }
.login-logo { font-size: 44px; }
.login-logo img { max-height: 90px; max-width: 220px; object-fit: contain; }
.login-box h1 { font-size: 18px; color: var(--dark); margin: 6px 0 2px; }
.login-sub { color: var(--muted); margin: 0 0 18px; }
.login-foot { font-size: 12px; color: var(--muted); margin: 20px 0 0; }

/* ---------- Topbar ---------- */
.topbar {
    display: flex; align-items: center; gap: 12px; padding: 0 16px; height: 52px;
    background: var(--dark); color: #fff;
}
.brand { color: #fff; font-size: 17px; font-weight: 700; display: flex; align-items: center; gap: 10px; min-width: 0; }
.brand-icon { font-size: 22px; }
.brand-logo { height: 38px; width: auto; max-width: 140px; object-fit: contain; background: #fff; border-radius: 6px; padding: 2px; }
.brand-name { color: var(--accent); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.nav-toggle { display: none; background: none; border: 0; color: #fff; font-size: 22px; cursor: pointer; }
.user-box { margin-left: auto; position: relative; }
.user-name { cursor: pointer; padding: 6px 10px; border-radius: 6px; display: block; }
.user-name:hover { background: rgba(255,255,255,.1); }
.user-name small { opacity: .7; }
.user-drop {
    display: none; position: absolute; right: 0; top: 100%; background: #fff; min-width: 180px;
    border-radius: 8px; box-shadow: 0 8px 24px rgba(0,0,0,.18); overflow: hidden; z-index: 60;
}
.user-box.open .user-drop { display: block; }
.user-drop a { display: block; padding: 10px 14px; color: var(--text); }
.user-drop a:hover { background: var(--bg); }

/* ---------- Navbar (menu nhiều cấp) ---------- */
.navbar { background: var(--primary); position: sticky; top: 0; z-index: 50; box-shadow: 0 2px 6px rgba(0,0,0,.15); }
.navbar ul { list-style: none; margin: 0; padding: 0; }
.nav-menu { display: flex; flex-wrap: wrap; padding: 0 8px; }
.nav-menu > li { position: relative; }
.nav-menu > li > a { display: flex; align-items: center; gap: 6px; padding: 14px 16px; color: #fff; font-weight: 600; font-size: 15px; }
.nav-menu > li:hover > a, .nav-menu > li.active > a { background: var(--primary-d); }
.nav-menu > li.active > a { box-shadow: inset 0 -3px 0 var(--accent); }
.caret::after { content: '▾'; font-size: 11px; opacity: .8; }
.nav-sub {
    display: none; position: absolute; left: 0; top: 100%; min-width: 240px; background: #fff;
    border-radius: 0 0 8px 8px; box-shadow: 0 10px 28px rgba(0,0,0,.18); padding: 6px 0 !important;
}
.nav-sub .nav-sub { left: 100%; top: -6px; border-radius: 8px; }
.nav-sub li { position: relative; }
.nav-sub a { display: flex; justify-content: space-between; padding: 11px 18px; color: var(--text); }
.nav-sub a:hover, .nav-sub li.active > a { background: #e3f2fd; color: var(--primary-d); }
.nav-sub .caret::after { content: '▸'; }
.nav-menu li:hover > .nav-sub { display: block; }

/* ---------- Layout ---------- */
.container { flex: 1; width: 100%; margin: 0; padding: 20px 24px; }
.page-title { font-size: 24px; color: var(--dark); margin: 0; }
.page-head { display: flex; flex-wrap: wrap; gap: 12px 20px; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.page-head .toolbar { margin: 0; }
.card { background: var(--card); border-radius: var(--radius); padding: 16px; margin-bottom: 14px; box-shadow: 0 1px 3px rgba(0,0,0,.06); }
.card-head { margin-bottom: 12px; font-size: 15px; }
.card-table { padding: 18px 20px; }
.toolbar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 4px 0 14px; }
.footer { text-align: center; padding: 14px; color: var(--muted); font-size: 12px; }

/* ---------- Table ---------- */
.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: top; text-align: left; }
.table th { background: #f5f7fa; font-size: 13px; white-space: nowrap; position: sticky; top: 0; }
.table tbody tr:hover { background: #fafcff; }
.table .empty { text-align: center; color: var(--muted); padding: 30px; }
.table th.c, .table td.c { text-align: center; }
.so-ghep { color: var(--primary-d); }
.pager { display: flex; gap: 4px; justify-content: center; margin-top: 14px; flex-wrap: wrap; }
.pager a, .pager span { padding: 5px 11px; border: 1px solid var(--border); border-radius: 5px; color: var(--text); }
.pager a.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ---------- Dashboard ---------- */
.page-dashboard .container { padding: 0; }
.hero {
    min-height: 58vh; display: flex; align-items: center;
    background: linear-gradient(90deg, rgba(11,42,91,.75), rgba(11,42,91,.15)), var(--bg-image) center / cover no-repeat;
    color: #fff;
}
.hero-inner { max-width: 1500px; width: 100%; margin: 0 auto; padding: 40px 32px; }
.hero h1 { font-size: clamp(26px, 4vw, 44px); text-shadow: 0 2px 10px rgba(0,0,0,.4); }
.hero-date { opacity: .85; margin: 0 0 6px; }
.hero-sub { font-size: 17px; opacity: .95; }
.stats, .tiles { max-width: 1500px; margin: 0 auto; padding: 0 16px; display: grid; gap: 14px; }
.stats { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); margin-top: -40px; }
.stat { background: #fff; border-radius: 10px; padding: 18px; box-shadow: 0 6px 18px rgba(0,0,0,.1); border-left: 4px solid var(--accent); }
.stat b { display: block; font-size: 28px; color: var(--primary-d); }
.stat span { color: var(--muted); }
.tiles { grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); margin-top: 20px; margin-bottom: 30px; }
.tile { background: #fff; border-radius: 10px; padding: 20px 14px; text-align: center; color: var(--text); font-weight: 600;
        box-shadow: 0 1px 3px rgba(0,0,0,.08); transition: transform .15s, box-shadow .15s; }
.tile:hover { transform: translateY(-3px); box-shadow: 0 8px 20px rgba(0,0,0,.12); }
.tile-ic { display: block; font-size: 32px; margin-bottom: 8px; }

/* ---------- Module văn bản ---------- */
.vb-row { border-left: 4px solid var(--primary); }
.vb-row-head { display: flex; justify-content: space-between; align-items: center; }
.vb-row-no { font-weight: 700; color: var(--primary-d); }

/* ---------- Placeholder ---------- */
.placeholder { text-align: center; padding: 50px 20px; }
.ph-icon { font-size: 54px; }

/* ---------- Toast ---------- */
.toast {
    position: fixed; right: 20px; bottom: 20px; padding: 12px 18px; border-radius: 8px; color: #fff;
    background: var(--ok); box-shadow: 0 6px 20px rgba(0,0,0,.2); opacity: 0; transform: translateY(10px);
    transition: all .3s; z-index: 999;
}
.toast.show { opacity: 1; transform: none; }
.toast-error { background: var(--danger); }

/* ---------- Select2 ---------- */
.select2-container--default .select2-selection--multiple,
.select2-container--default .select2-selection--single { border-color: var(--border); min-height: 36px; }
.select2-container--default .select2-selection--single .select2-selection__rendered { line-height: 34px; }
.select2-container--default .select2-selection--single .select2-selection__arrow { height: 34px; }

/* ---------- Bảng lớn ---------- */
.table-lg { font-size: 15px; }
.table-lg th { font-size: 14px; padding: 12px 14px; background: #e9eff7; color: var(--dark); text-transform: none; }
.table-lg td { padding: 12px 14px; vertical-align: middle; }
.table-lg tbody tr:nth-child(even) { background: #fafbfd; }
.table-lg tbody tr:hover { background: #eef5ff; }
.card-table .table-wrap { max-height: calc(100vh - 290px); overflow: auto; border: 1px solid var(--border); border-radius: 6px; }
.table-lg thead th { z-index: 2; }
.so-ghep.big { font-size: 18px; }
.sticky-save { position: sticky; bottom: 0; background: #fff; padding: 12px 0 0; margin: 0; }

/* ---------- Bộ lọc ---------- */
.filter-row { display: flex; flex-wrap: wrap; gap: 0 14px; align-items: flex-end; }
.filter-row > div { min-width: 160px; }
.filter-row .grow { flex: 1; min-width: 260px; }
.filter-row .actions { display: flex; gap: 8px; padding-top: 10px; }

/* ---------- MODAL ---------- */
body.modal-open { overflow: hidden; }
.modal {
    position: fixed; inset: 0; z-index: 1000; display: flex; align-items: flex-start; justify-content: center;
    padding: 40px 16px; background: rgba(8, 24, 52, .55); overflow-y: auto;
    opacity: 0; visibility: hidden; transition: opacity .2s, visibility .2s;
}
.modal.show { opacity: 1; visibility: visible; }
.modal-dialog {
    width: 100%; background: #fff; border-radius: 12px; box-shadow: 0 25px 60px rgba(0,0,0,.35);
    display: flex; flex-direction: column; max-height: calc(100vh - 80px);
    transform: translateY(-20px) scale(.98); transition: transform .2s;
}
.modal.show .modal-dialog { transform: none; }
.modal-dialog > form { display: flex; flex-direction: column; min-height: 0; flex: 1; }
.modal-sm { max-width: 440px; }
.modal-md { max-width: 700px; }
.modal-lg { max-width: 980px; }
.modal-xl { max-width: 1280px; }
.modal-header {
    display: flex; align-items: center; justify-content: space-between; padding: 16px 22px;
    background: var(--primary); color: #fff; border-radius: 12px 12px 0 0;
}
.modal-header-ok { background: var(--ok); }
.modal-title { margin: 0; font-size: 20px; }
.modal-x { background: none; border: 0; color: #fff; font-size: 30px; line-height: 1; cursor: pointer; opacity: .85; }
.modal-x:hover { opacity: 1; }
.modal-body { padding: 18px 22px; overflow-y: auto; flex: 1; background: #f6f8fb; }
.modal-footer {
    display: flex; gap: 10px; align-items: center; padding: 14px 22px; border-top: 1px solid var(--border);
    background: #fff; border-radius: 0 0 12px 12px;
}
.modal-footer .spacer { flex: 1; }
.modal .grid { grid-template-columns: repeat(3, 1fr); }
.modal .grid .span2 { grid-column: span 2; }

/* Khối văn bản trong modal */
.vb-row { background: #fff; border: 1px solid var(--border); border-left: 5px solid var(--primary); border-radius: 8px; padding: 12px 18px 16px; margin-bottom: 14px; }
.vb-grid { display: grid; grid-template-columns: 1.2fr 1fr 1.4fr; gap: 0 16px; }
.vb-grid .full { grid-column: 1 / -1; }
.vb-edit-info { background: #fff; border: 1px solid var(--border); border-radius: 8px; padding: 6px 18px 14px; margin-bottom: 14px; }
.vb-row-no { font-size: 16px; }

/* Modal thông báo / xác nhận */
.modal-dialog-box { align-items: center; }
.modal-dialog-box .modal-dialog { padding: 28px 26px 22px; text-align: center; }
.dlg-icon { font-size: 52px; line-height: 1; margin-bottom: 10px; }
.dlg-title { font-size: 21px; margin: 0 0 8px; }
.dlg-msg { font-size: 16px; color: #374151; margin-bottom: 22px; line-height: 1.55; max-height: 50vh; overflow: auto; }
.dlg-actions { display: flex; gap: 10px; justify-content: center; }
.dlg-actions .btn { min-width: 110px; }
.dlg-error + .dlg-title { color: var(--danger); }
.dlg-success + .dlg-title { color: var(--ok); }
.select2-container--open { z-index: 2000; }

/* ---------- Mobile ---------- */
@media (max-width: 900px) {
    .nav-toggle { display: block; }
    .user-name small { display: none; }
    .brand { font-size: 14px; }
    .brand-logo { height: 30px; }
    .brand-name { max-width: 52vw; }
    .navbar { display: none; position: static; }
    .navbar.open { display: block; }
    .nav-menu { flex-direction: column; padding: 0; }
    .nav-sub, .nav-sub .nav-sub { position: static; box-shadow: none; border-radius: 0; background: rgba(255,255,255,.08); padding: 0 !important; }
    .nav-menu li:hover > .nav-sub { display: none; }
    .nav-menu li.open > .nav-sub { display: block; }
    .nav-sub a { color: #fff; padding-left: 28px; }
    .nav-sub .nav-sub a { padding-left: 44px; }
    .grid .span2 { grid-column: 1 / -1; }
    form.inline input { width: 160px; }
    .hero { min-height: 40vh; }
    .container { padding: 14px 12px; }
    .modal { padding: 10px 6px; }
    .modal-dialog { max-height: calc(100vh - 20px); }
    .modal .grid, .vb-grid { grid-template-columns: 1fr; }
    .modal .grid .span2 { grid-column: auto; }
    .card-table .table-wrap { max-height: none; }
    .modal-footer { flex-wrap: wrap; }
}

/* ===== Phân quyền module ===== */
.nav-menu li.locked > a, .tile.locked { opacity: .55; }
.nav-menu .lock-ic { font-size: 11px; margin-left: 4px; }
.perm-deny { max-width: 560px; margin: 40px auto; text-align: center; padding: 34px 24px; }
.perm-deny-ic { font-size: 60px; line-height: 1; margin-bottom: 10px; }
.perm-deny h3 { color: #c62828; font-size: 20px; }

/* Ảnh đại diện người dùng (URL ảnh eOffice) – avatar_html() */
.avt { display: inline-block; border-radius: 50%; object-fit: cover; vertical-align: middle; flex-shrink: 0; background: #e2e8f0; }
.avt-chu { display: inline-flex; align-items: center; justify-content: center; color: #fff; font-weight: 700; line-height: 1; }
.avt-top { border: 2px solid rgba(255,255,255,.7); margin-right: 4px; }
.user-name { display: flex; align-items: center; gap: 6px; }