/* ================= Nền tảng ================= */
:root {
  --primary: #db0000;
  --primary-600: #a30000;
  --primary-50: #fff1f1;
  --primary-100: #f5c2c2;
  --ring: rgba(219, 0, 0, 0.14);
  --navy: #0b3a68;
  --success: #059669;
  --success-50: #ecfdf5;
  --warning: #d97706;
  --warning-50: #fffbeb;
  --danger: #dc2626;
  --danger-50: #fef2f2;
  --text: #262626;
  --text-2: #595959;
  --text-3: #8c8c8c;
  --border: #ececec;
  --bg: #f7f7f8;
  --surface: #fff;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 20px 45px rgba(15, 23, 42, 0.18);
  --font: 'Plus Jakarta Sans', 'Segoe UI', system-ui, -apple-system, Roboto, sans-serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { margin: 0; line-height: 1.3; }
small { color: var(--text-3); font-size: 12px; }
.muted { color: var(--text-2); font-size: 13px; margin: 0; }
.error { color: var(--danger); font-size: 13px; margin: 0; }
.error:empty { display: none; }
.empty { text-align: center !important; color: var(--text-3); padding: 32px 12px !important; }

svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }

code {
  font-family: 'Cascadia Code', Consolas, monospace;
  font-size: 12.5px;
  background: #f5f5f5;
  color: var(--text);
  padding: 2px 7px;
  border-radius: 6px;
  white-space: nowrap;
}

/* ================= Nút ================= */
button {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  height: 38px; padding: 0 16px;
  font: inherit; font-weight: 600;
  color: #fff; background: var(--primary);
  border: 1px solid transparent; border-radius: 999px;
  cursor: pointer; white-space: nowrap;
  transition: background 0.15s, border-color 0.15s, box-shadow 0.15s, transform 0.15s, opacity 0.15s;
}
button:hover { background: var(--primary-600); }
button:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--ring); }
button:disabled { opacity: 0.45; cursor: not-allowed; }

/* Nút chính kiểu "nổi khối" giống landing Fox */
button[type='submit']:not(.small), .modal-actions button:last-child, button.btn-block {
  border-color: #e84545; box-shadow: 0 4px 0 #a30000;
}
button[type='submit']:not(.small):active, .modal-actions button:last-child:active, button.btn-block:active {
  transform: translateY(3px); box-shadow: 0 1px 0 #a30000;
}

button.secondary { color: var(--text); background: var(--surface); border-color: var(--border); box-shadow: none; }
button.secondary:hover { color: var(--primary); background: var(--primary-50); border-color: var(--primary-100); }
button.danger { background: var(--danger); }
button.danger:hover { background: #b91c1c; }
button.small { height: 30px; padding: 0 12px; font-size: 13px; }
button.btn-block { width: 100%; height: 46px; font-size: 15px; }

/* Nút trong bảng: nhẹ, chỉ đậm khi hover */
td button.small { color: var(--text-2); background: transparent; border-color: var(--border); }
td button.small:hover { color: var(--primary); background: var(--primary-50); border-color: var(--primary-100); }
td button.small.danger { color: var(--danger); }
td button.small.danger:hover { background: var(--danger-50); border-color: #fecaca; }

.icon-btn { width: 34px; height: 34px; padding: 0; color: var(--text-3); background: transparent; }
.icon-btn:hover { color: var(--primary); background: var(--primary-50); }

/* ================= Ô nhập ================= */
.field { display: flex; flex-direction: column; gap: 6px; font-size: 13px; font-weight: 500; color: var(--text-2); }
.field em { color: var(--danger); font-style: normal; }

input, select {
  width: 100%; height: 40px; padding: 0 12px;
  font: inherit; color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  transition: border-color 0.15s, box-shadow 0.15s;
}
input:hover, select:hover { border-color: #d9d9d9; }
input:focus, select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--ring); }
input:disabled { color: var(--text-2); background: #fafafa; cursor: not-allowed; }
/* ---------- Dropdown (public/select.js) ---------- */
.dd { position: relative; width: 100%; }
.dd > select { display: none; }
.dd-trigger {
  width: 100%; height: 40px; justify-content: space-between; gap: 8px; padding: 0 12px;
  font-weight: 500; color: var(--text); text-align: left;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); box-shadow: none;
}
.dd-trigger:hover { color: var(--text); background: var(--surface); border-color: #d9d9d9; }
.dd-trigger:focus-visible, .dd.open .dd-trigger { border-color: var(--primary); box-shadow: 0 0 0 3px var(--ring); }
.dd-trigger:disabled { opacity: 1; color: var(--text-2); background: #fafafa; }
.dd-trigger.placeholder .dd-label { color: var(--text-2); }
.dd-label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dd-chevron { width: 16px; height: 16px; color: var(--text-3); transition: transform 0.2s, color 0.2s; }
.dd.open .dd-chevron { transform: rotate(180deg); color: var(--primary); }
.dd:has(> select.invalid) .dd-trigger { border-color: var(--danger); background: #fffafa; }

.dd-panel {
  position: absolute; z-index: 60; top: calc(100% + 6px); left: 0;
  min-width: 100%; width: max-content; max-width: 340px; padding: 6px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 12px;
  box-shadow: 0 16px 40px rgba(38, 38, 38, 0.14);
  animation: dd-in 0.14s ease-out;
}
.dd.drop-up .dd-panel { top: auto; bottom: calc(100% + 6px); }
.dd-search { height: 36px; margin-bottom: 6px; }
.dd-list { max-height: 260px; overflow-y: auto; }
.dd-option {
  position: relative; padding: 9px 36px 9px 12px;
  font-weight: 500; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  border-radius: 8px; cursor: pointer;
}
.dd-option.active { color: var(--primary); background: var(--primary-50); }
.dd-option.selected { color: var(--primary); font-weight: 700; }
.dd-option.selected::after {
  content: ''; position: absolute; right: 12px; top: 50%; width: 16px; height: 16px; margin-top: -8px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23db0000' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") no-repeat center / contain;
}
.dd-option.disabled { color: var(--text-3); cursor: not-allowed; }
.dd-empty { padding: 10px 12px; color: var(--text-3); font-size: 13px; }
@keyframes dd-in { from { opacity: 0; transform: translateY(-4px); } }

input.invalid, select.invalid { border-color: var(--danger); background-color: #fffafa; }
input.invalid:focus, select.invalid:focus { border-color: var(--danger); box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.14); }
.field-error {
  display: flex; align-items: center; gap: 6px;
  font-size: 12.5px; font-weight: 500; color: var(--danger);
  animation: fade-in 0.15s ease-out;
}
.field-error::before {
  content: '!'; display: grid; place-items: center; flex-shrink: 0; width: 15px; height: 15px;
  font-size: 10px; font-weight: 800; color: #fff; background: var(--danger); border-radius: 50%;
}
input[type='search'] { padding-left: 34px; background: var(--surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='M20 20l-3.5-3.5'/%3E%3C/svg%3E") no-repeat 10px center / 16px; }

/* ================= Đăng nhập ================= */
.login { display: grid; place-items: center; min-height: 100vh; padding: 24px; background: var(--bg); }
.login-panel {
  width: 100%; max-width: 400px; padding: 36px 32px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 16px; box-shadow: var(--shadow);
}
.login-form { display: flex; flex-direction: column; gap: 16px; }
.login-brand { display: flex; flex-direction: column; align-items: center; gap: 6px; margin-bottom: 8px; text-align: center; }
.login-logo { height: 44px; width: auto; margin-bottom: 14px; }
.login-brand h2 { font-size: 22px; }

/* ================= Bố cục ================= */
.layout { display: grid; grid-template-columns: 248px 1fr; min-height: 100vh; }

.sidebar {
  position: sticky; top: 0; height: 100vh;
  display: flex; flex-direction: column; gap: 24px;
  padding: 22px 14px 18px;
  background: var(--surface); border-right: 1px solid var(--border);
}

.brand { display: flex; flex-direction: column; align-items: flex-start; gap: 6px; padding: 0 8px; }
.brand-img { height: 34px; width: auto; }
.brand-tag {
  padding: 2px 10px; font-size: 11px; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--primary); background: var(--primary-50); border-radius: 999px;
}

.tabs { display: flex; flex-direction: column; gap: 4px; flex: 1; }
.tabs button {
  justify-content: flex-start; gap: 12px; height: 42px; padding: 0 14px;
  font-weight: 600; color: var(--text-2); background: transparent; border-radius: 10px; box-shadow: none;
}
.tabs button:hover { color: var(--primary); background: var(--primary-50); }
.tabs button.active { color: #fff; background: var(--primary); box-shadow: 0 3px 0 #a30000; }

.sidebar-user {
  display: flex; align-items: center; gap: 8px;
  padding: 14px 6px 0; border-top: 1px solid var(--border);
}
.sidebar-user-info { display: flex; flex-direction: column; min-width: 0; flex: 1; line-height: 1.3; }
.sidebar-user-info b { color: var(--text); font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sidebar-user-info small { color: var(--text-3); }
.avatar {
  display: grid; place-items: center; flex-shrink: 0; width: 36px; height: 36px;
  font-size: 13px; font-weight: 700; color: var(--primary); background: var(--primary-50);
  border: 2px solid var(--primary-100); border-radius: 50%;
}

.content { min-width: 0; }
.topbar { padding: 28px 32px 0; }
.topbar h1 { font-size: 24px; font-weight: 800; }
.topbar p { margin: 4px 0 0; color: var(--text-2); }
main { padding: 20px 32px 40px; }

/* ================= Thẻ ================= */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 20px;
}
.card-compact { padding: 16px 20px; }
.card-header {
  display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  margin-bottom: 16px;
}
.card-header h2 { font-size: 16px; font-weight: 700; }
.card-header .search { width: 280px; height: 36px; }

.info { display: grid; grid-template-columns: 150px 1fr; gap: 10px 16px; margin: 0; }
.info dt { color: var(--text-2); }
.info dd { margin: 0; font-weight: 500; }

/* ---------- Thông tin của tôi ---------- */
.profile-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 20px; align-items: stretch; }
.profile-grid .card { margin-bottom: 0; }
.ref-card { background: linear-gradient(180deg, var(--primary-50), var(--surface) 55%); }
.ref-card .muted { margin: 12px 0 16px; }
.ref-code-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.ref-code {
  padding: 10px 20px;
  font-family: 'Cascadia Code', Consolas, monospace; font-size: 28px; font-weight: 700; letter-spacing: 4px;
  color: var(--primary);
  background: var(--surface); border: 2px dashed var(--primary-100); border-radius: var(--radius-sm);
}

.sync-bar {
  display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  margin-bottom: 12px; padding-bottom: 12px; border-bottom: 1px solid var(--border);
}
.sync-info { color: var(--text-3); font-size: 13px; }
#sync-btn svg { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
#sync-btn.syncing svg { animation: spin 0.9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.split {
  margin-bottom: 14px; padding: 14px 16px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm);
}
.split-head { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.ref-card .split-head .muted { margin: 0; font-size: 12px; }
.split-bar { display: flex; gap: 3px; height: 12px; overflow: hidden; border-radius: 999px; }
.split-keep { background: var(--primary); border-radius: 999px 0 0 999px; }
.split-discount { background: var(--navy); border-radius: 0 999px 999px 0; }
.split-legend { display: flex; flex-direction: column; gap: 4px; margin-top: 10px; font-size: 13px; color: var(--text-2); }
.split-dot { display: inline-block; width: 10px; height: 10px; margin-right: 8px; border-radius: 3px; vertical-align: -1px; }
.split-dot.keep { background: var(--primary); }
.split-dot.discount { background: var(--navy); }
#edit-discount-btn { gap: 8px; margin-bottom: 18px; }
.modal-hint { color: var(--text-3); font-size: 12px; font-weight: 400; }

/* ================= Form ================= */
form.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 16px; }
form.grid .full { grid-column: 1 / -1; }
.actions { display: flex; gap: 8px; }

.agent-box {
  margin: 0; padding: 16px;
  background: #fffafa; border: 1px solid var(--primary-100); border-radius: var(--radius-sm);
}
.agent-box legend { padding: 0 6px; font-size: 13px; font-weight: 600; color: var(--primary); }
.agent-box .grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; }

form.filters { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 12px; }
form.filters .field.field-range { min-width: 250px; }

.presets { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.presets button {
  height: 32px; padding: 0 14px; font-size: 13px; font-weight: 600;
  color: var(--text-2); background: var(--surface); border: 1px solid var(--border); box-shadow: none;
}
.presets button:hover { color: var(--primary); background: var(--primary-50); border-color: var(--primary-100); }
.presets button.active { color: var(--primary); background: var(--primary-50); border-color: var(--primary); }

input.date-input {
  padding-right: 38px; cursor: pointer;
  background: var(--surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23db0000' stroke-width='2' stroke-linecap='round'%3E%3Crect x='3' y='5' width='18' height='16' rx='2'/%3E%3Cpath d='M16 3v4M8 3v4M3 10h18'/%3E%3C/svg%3E") no-repeat right 12px center / 18px;
}

/* ---------- Lịch (flatpickr) ---------- */
.flatpickr-calendar {
  width: 316px; padding: 10px; font-family: var(--font);
  border: 1px solid var(--border); border-radius: 14px;
  box-shadow: 0 16px 40px rgba(38, 38, 38, 0.14);
}
.flatpickr-calendar.arrowTop::before, .flatpickr-calendar.arrowTop::after,
.flatpickr-calendar.arrowBottom::before, .flatpickr-calendar.arrowBottom::after { display: none; }
.flatpickr-months { padding-bottom: 6px; }
.flatpickr-months .flatpickr-month { height: 40px; color: var(--text); }
.flatpickr-current-month { padding-top: 8px; font-size: 15px; font-weight: 700; }
.flatpickr-current-month .flatpickr-monthDropdown-months { font-weight: 700; border-radius: 6px; }
.flatpickr-current-month .flatpickr-monthDropdown-months:hover,
.flatpickr-current-month input.cur-year:hover { background: var(--primary-50); }
.flatpickr-current-month input.cur-year { font-weight: 700; }
.flatpickr-months .flatpickr-prev-month, .flatpickr-months .flatpickr-next-month {
  top: 10px; height: 36px; width: 36px; padding: 10px; border-radius: 50%;
}
.flatpickr-months .flatpickr-prev-month { left: 10px; }
.flatpickr-months .flatpickr-next-month { right: 10px; }
.flatpickr-months .flatpickr-prev-month:hover, .flatpickr-months .flatpickr-next-month:hover { background: var(--primary-50); }
.flatpickr-months .flatpickr-prev-month:hover svg, .flatpickr-months .flatpickr-next-month:hover svg { fill: var(--primary); }
.flatpickr-prev-month svg, .flatpickr-next-month svg { width: 12px; height: 12px; stroke: none; fill: var(--text-2); }
.flatpickr-current-month input.cur-year,
.flatpickr-current-month .flatpickr-monthDropdown-months {
  width: auto; height: auto; padding: 2px 4px; border: none; box-shadow: none; background: transparent;
}
.flatpickr-current-month .numInputWrapper { width: 7ch; }
span.flatpickr-weekday { font-size: 12px; font-weight: 700; color: var(--text-3); }
.flatpickr-innerContainer, .flatpickr-rContainer, .flatpickr-days, .dayContainer { width: 294px; min-width: 294px; max-width: 294px; }
.flatpickr-day {
  max-width: 42px; height: 38px; line-height: 38px; margin-top: 2px;
  font-weight: 500; color: var(--text); border-radius: 10px; border: none;
}
.flatpickr-day:hover, .flatpickr-day:focus { background: var(--primary-50); color: var(--primary); }
.flatpickr-day.today { color: var(--primary); font-weight: 800; }
.flatpickr-day.today::after {
  content: ''; position: absolute; left: 50%; bottom: 5px; width: 4px; height: 4px; margin-left: -2px;
  border-radius: 50%; background: var(--primary);
}
.flatpickr-day { position: relative; }
.flatpickr-day.inRange, .flatpickr-day.inRange:hover {
  color: var(--primary); background: var(--primary-50); border-radius: 0;
  box-shadow: -5px 0 0 var(--primary-50), 5px 0 0 var(--primary-50);
}
.flatpickr-day.selected, .flatpickr-day.startRange, .flatpickr-day.endRange,
.flatpickr-day.selected:hover, .flatpickr-day.startRange:hover, .flatpickr-day.endRange:hover {
  color: #fff; background: var(--primary); border: none; font-weight: 700;
}
.flatpickr-day.startRange { border-radius: 10px 0 0 10px; }
.flatpickr-day.endRange { border-radius: 0 10px 10px 0; }
.flatpickr-day.startRange.endRange { border-radius: 10px; }
.flatpickr-day.selected.startRange + .endRange:not(:nth-child(7n+1)),
.flatpickr-day.startRange.startRange + .endRange:not(:nth-child(7n+1)),
.flatpickr-day.endRange.startRange + .endRange:not(:nth-child(7n+1)) { box-shadow: -10px 0 0 var(--primary); }
.flatpickr-day.today.selected::after, .flatpickr-day.today.startRange::after, .flatpickr-day.today.endRange::after { background: #fff; }
.flatpickr-day.prevMonthDay, .flatpickr-day.nextMonthDay { color: #c4c4c4; }
.flatpickr-day.inRange.prevMonthDay, .flatpickr-day.inRange.nextMonthDay {
  color: #e88080; background: var(--primary-50); border-color: transparent;
  box-shadow: -5px 0 0 var(--primary-50), 5px 0 0 var(--primary-50);
}
.flatpickr-day.flatpickr-disabled, .flatpickr-day.flatpickr-disabled:hover { color: #d9d9d9; background: transparent; }
form.filters .field { min-width: 170px; }
form.filters .field.grow { flex: 1; }

.callout {
  margin-top: 16px; padding: 14px 16px;
  color: #92400e; background: var(--warning-50);
  border: 1px solid #fde68a; border-radius: var(--radius-sm);
}
.key-row { display: flex; align-items: center; gap: 8px; margin-top: 8px; }
code.key { flex: 1; padding: 8px 10px; white-space: normal; word-break: break-all; user-select: all; background: var(--surface); }

/* ================= Bảng ================= */
.table-wrap { overflow-x: auto; margin: 0 -20px; }
table { width: 100%; border-collapse: collapse; }
th {
  padding: 10px 12px; text-align: left; white-space: nowrap;
  font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.03em;
  color: var(--text-3); background: #fafafa;
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
}
td { padding: 12px; border-bottom: 1px solid #f3f3f3; vertical-align: middle; }
th:first-child, td:first-child { padding-left: 20px; }
th:last-child, td:last-child { padding-right: 20px; }
tbody tr { transition: background 0.1s; }
tbody tr:hover { background: #fffafa; }
tbody tr:last-child td { border-bottom: none; }
td.row-actions { text-align: right; white-space: nowrap; }
td.row-actions button + button { margin-left: 4px; }
th.num, td.num { text-align: right; white-space: nowrap; }
.cell-main { font-weight: 600; }
.cell-sub { display: block; color: var(--text-3); font-size: 12px; }

/* ---------- Badge ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 3px 10px; font-size: 12px; font-weight: 600; white-space: nowrap;
  color: var(--text-2); background: #f5f5f5; border-radius: 999px;
}
.badge::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.badge.ok { color: var(--success); background: var(--success-50); }
.badge.warn { color: var(--warning); background: var(--warning-50); }
.badge.err { color: var(--danger); background: var(--danger-50); }
.badge.role { color: var(--primary); background: var(--primary-50); }
.badge.role::before { display: none; }

/* ================= Thống kê ================= */
.stat-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 20px; }
.stat {
  position: relative; overflow: hidden;
  padding: 16px 18px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow);
}
.stat::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--accent, var(--text-3)); }
.stat-label { color: var(--text-2); font-size: 13px; }
.stat-value { margin-top: 6px; font-size: 22px; font-weight: 700; letter-spacing: -0.01em; }
.stat.primary { --accent: var(--navy); }
.stat.success { --accent: var(--success); }
.stat.warning { --accent: var(--warning); }
.stat.danger { --accent: var(--danger); }
.stat.highlight { color: #fff; background: linear-gradient(135deg, #db0000, #ff5a1f); border-color: transparent; box-shadow: 0 4px 0 #a30000; }
.stat.highlight .stat-label { color: #ffe1e1; }
.stat.highlight::before { display: none; }

.chart-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 0 20px; }
.chart-grid > * { min-width: 0; }
#usage-card, .chart-grid.solo #revenue-card { grid-column: 1 / -1; }
.chart-box { position: relative; height: 280px; }

.pager { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding-top: 16px; color: var(--text-2); font-size: 13px; }
.pager-buttons { display: flex; gap: 6px; }

/* ================= Popup xác nhận ================= */
.modal-backdrop {
  position: fixed; inset: 0; z-index: 1000;
  display: flex; align-items: center; justify-content: center; padding: 16px;
  background: rgba(38, 38, 38, 0.5); backdrop-filter: blur(2px);
  animation: fade-in 0.12s ease-out;
}
.modal {
  width: 100%; max-width: 460px; max-height: calc(100vh - 32px); overflow-y: auto;
  padding: 24px;
  background: var(--surface); border-radius: 14px; box-shadow: var(--shadow-lg);
  border-top: 4px solid var(--primary);
  animation: pop-in 0.14s ease-out;
}
.modal.modal-danger { border-top-color: var(--danger); }
.modal h3 { margin-bottom: 8px; font-size: 18px; }
.modal-message { margin: 0 0 14px; color: var(--text-2); line-height: 1.55; }
.modal-details {
  display: grid; grid-template-columns: max-content 1fr; gap: 8px 16px;
  margin: 0 0 14px; padding: 14px 16px;
  background: #fafafa; border: 1px solid var(--border); border-radius: var(--radius-sm);
}
.modal-details dt { color: var(--text-2); }
.modal-details dd { margin: 0; font-weight: 500; word-break: break-word; }
.modal-details dd.warn { color: var(--warning); font-weight: 600; }
.modal-details dd.danger { color: var(--danger); font-weight: 600; }
.modal-details dd.ok { color: var(--success); font-weight: 600; }
.modal-details dd.code { font-family: 'Cascadia Code', Consolas, monospace; font-size: 16px; font-weight: 700; letter-spacing: 1px; color: var(--primary); }
.modal-details dd.muted { color: var(--text-3); text-decoration: line-through; }
.modal-field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; font-size: 13px; font-weight: 500; color: var(--text-2); }
.modal-error { margin: 0 0 10px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 8px; }

/* ================= Toast ================= */
.toast-stack { position: fixed; right: 20px; bottom: 20px; z-index: 1100; display: flex; flex-direction: column; gap: 8px; }
.toast {
  display: flex; align-items: center; gap: 10px;
  min-width: 240px; max-width: 380px; padding: 12px 16px;
  font-weight: 500; color: #fff;
  background: #262626; border-left: 4px solid var(--success); border-radius: 10px;
  box-shadow: var(--shadow-lg);
  transition: opacity 0.4s, transform 0.4s; animation: slide-in 0.2s ease-out;
}
.toast-error { border-left-color: var(--danger); }
.toast-info { border-left-color: #64748b; }
.toast.hide { opacity: 0; transform: translateY(8px); }

@keyframes fade-in { from { opacity: 0; } }
@keyframes pop-in { from { opacity: 0; transform: scale(0.96); } }
@keyframes slide-in { from { opacity: 0; transform: translateX(16px); } }

/* ================= Màn hình nhỏ ================= */
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; grid-template-rows: auto 1fr; }
  .sidebar { position: sticky; z-index: 10; height: auto; flex-direction: row; flex-wrap: wrap; align-items: center; gap: 12px; padding: 12px 16px; }
  .sidebar { border-right: none; border-bottom: 1px solid var(--border); }
  .brand-tag { display: none; }
  .tabs { order: 3; flex-basis: 100%; flex-direction: row; overflow-x: auto; }
  .tabs button { flex-shrink: 0; }
  .sidebar-user { margin-left: auto; padding: 0; border: none; }
  .sidebar-user-info { display: none; }

  .topbar { padding: 20px 16px 0; }
  main { padding: 16px 16px 32px; }
  .stat-cards { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .chart-grid { grid-template-columns: 1fr; }
  .chart-box { height: 240px; }
  .card-header .search { width: 100%; }
}