/* Base + component dùng chung Public/Admin */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0; font-family: var(--font); font-size: 15px; line-height: 1.55; color: var(--c-text);
  background: var(--c-page); overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
h1, h2, h3, h4 { margin: 0; color: var(--c-heading); line-height: 1.3; }
p { margin: 0; }
a { color: var(--c-primary); }
button, input, select, textarea { font: inherit; color: inherit; }
[hidden] { display: none !important; }
.num, .tabular { font-variant-numeric: tabular-nums; }
.sr-only {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
:focus-visible { outline: none; box-shadow: var(--focus-ring); }
.skip-link {
  position: absolute; left: var(--s-4); top: -60px; z-index: 100; padding: var(--s-2) var(--s-4);
  background: var(--c-heading); color: #fff; border-radius: var(--radius-btn); text-decoration: none;
}
.skip-link:focus { top: var(--s-2); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--s-2);
  min-height: var(--h-btn); padding: 0 var(--s-4); border-radius: var(--radius-btn);
  border: 1px solid transparent; font-size: 14px; font-weight: var(--fw-semibold); line-height: 1.2;
  cursor: pointer; text-decoration: none; white-space: nowrap; transition: background-color .15s, border-color .15s;
}
.btn:disabled, .btn[aria-disabled="true"] { cursor: not-allowed; opacity: .6; }
.btn-primary { background: var(--c-primary); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--c-primary-hover); }
.btn-violet { background: var(--c-violet); color: #fff; }
.btn-violet:hover:not(:disabled) { background: var(--c-violet-hover); }
.btn-outline { background: var(--c-card); color: var(--c-primary); border-color: var(--c-border); }
.btn-outline:hover:not(:disabled) { border-color: var(--c-primary); background: var(--c-soft-blue); }
.btn-ghost { background: transparent; color: var(--c-text-2); }
.btn-ghost:hover:not(:disabled) { background: var(--c-surface-2); color: var(--c-text); }
.btn-danger { background: var(--c-danger); color: #fff; }
.btn-success { background: var(--c-success); color: #fff; }
.btn-sm { min-height: 36px; padding: 0 var(--s-3); font-size: 13px; border-radius: 10px; }
.btn .icon { width: 18px; height: 18px; flex: none; }
.spinner {
  width: 16px; height: 16px; border-radius: 50%; border: 2px solid currentColor; border-right-color: transparent;
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Cards ---------- */
.card {
  background: var(--c-card); border: 1px solid var(--c-border); border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}

/* ---------- Forms ---------- */
fieldset.fields { border: 0; margin: 0; padding: 0; min-width: 0; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field + .field { margin-top: var(--s-4); }
.label { font-size: 14px; font-weight: var(--fw-semibold); line-height: 21px; color: var(--c-heading); }
.req { color: var(--c-danger); margin-left: 2px; }
.optional { font-weight: var(--fw-regular); color: var(--c-muted); }
.control {
  width: 100%; min-height: var(--h-input); padding: 0 var(--s-4); border: 1px solid var(--c-border);
  border-radius: var(--radius-input); background: var(--c-card); font-size: 16px; color: var(--c-text);
  transition: border-color .15s;
}
textarea.control { min-height: 96px; padding: var(--s-3) var(--s-4); resize: vertical; line-height: 1.5; }
.control::placeholder { color: var(--c-muted); }
.control:hover:not(:disabled) { border-color: #B9CCDD; }
.control:focus-visible { border-color: var(--c-bright); box-shadow: 0 0 0 3px rgba(11, 95, 255, .18); }
.control:disabled { background: var(--c-surface-2); color: var(--c-muted); cursor: not-allowed; }
.control[aria-invalid="true"] { border-color: var(--c-danger); }
select.control {
  appearance: none; padding-right: 44px; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%23475569' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center;
}
.input-affix { position: relative; }
.input-affix .affix {
  position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--c-text-2);
  font-weight: var(--fw-semibold); pointer-events: none;
}
.input-affix .control { padding-left: 38px; }
.hint { font-size: 13px; color: var(--c-muted); line-height: 1.45; }
.error-text { font-size: 13px; color: var(--c-danger); line-height: 1.45; }
.check { display: flex; align-items: flex-start; gap: var(--s-3); cursor: pointer; font-size: 15px; line-height: 1.5; }
.check input { width: 22px; height: 22px; margin: 1px 0 0; flex: none; accent-color: var(--c-primary); cursor: pointer; }

/* ---------- Badges / pills ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 6px; padding: 2px 10px; border-radius: var(--radius-pill);
  font-size: 12.5px; font-weight: var(--fw-semibold); line-height: 20px; white-space: nowrap;
}
.badge::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.badge.no-dot::before { display: none; }
.b-success { color: var(--c-success); background: var(--c-success-bg); }
.b-warning { color: var(--c-warning); background: var(--c-warning-bg); }
.b-danger { color: var(--c-danger); background: var(--c-danger-bg); }
.b-info { color: var(--c-info); background: var(--c-info-bg); }
.b-neutral { color: var(--c-text-2); background: #EEF2F7; }
.b-violet { color: var(--c-violet); background: var(--c-violet-bg); }
.demo-pill {
  display: inline-flex; align-items: center; gap: 6px; padding: 4px 12px; border-radius: var(--radius-pill);
  background: var(--c-violet-bg); color: var(--c-violet); font-size: 12.5px; font-weight: var(--fw-semibold);
  line-height: 18px; white-space: nowrap;
}

/* ---------- Alerts ---------- */
.alert {
  display: flex; gap: var(--s-3); padding: var(--s-3) var(--s-4); border-radius: 12px; border: 1px solid;
  font-size: 14.5px; line-height: 1.5;
}
.alert .icon { width: 20px; height: 20px; flex: none; margin-top: 1px; }
.alert strong { display: block; font-weight: var(--fw-semibold); margin-bottom: 2px; }
.alert-success { background: var(--c-success-bg); border-color: #BFE5CD; color: #14532D; }
.alert-warning { background: var(--c-warning-bg); border-color: #F6D9A8; color: #7C2D12; }
.alert-danger { background: var(--c-danger-bg); border-color: #F5C2C2; color: #7F1D1D; }
.alert-info { background: var(--c-info-bg); border-color: #C5DFF0; color: #0C3B66; }

/* ---------- Tables ---------- */
.table-wrap { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }
table.data { width: 100%; border-collapse: collapse; font-size: 14px; }
table.data th {
  position: sticky; top: 0; z-index: 1; background: var(--c-surface-2); color: var(--c-text-2);
  font-size: 13px; font-weight: var(--fw-semibold); text-align: left; padding: 10px 12px;
  border-bottom: 1px solid var(--c-border); white-space: nowrap;
}
table.data td { padding: 10px 12px; height: var(--h-row); border-bottom: 1px solid var(--c-divider); vertical-align: middle; }
table.data tbody tr:hover { background: #FAFCFE; }
table.data .r { text-align: right; font-variant-numeric: tabular-nums; }
table.data th.r { text-align: right; }
table.data .nowrap { white-space: nowrap; }
.empty { padding: var(--s-8) var(--s-4); text-align: center; color: var(--c-muted); }

/* ---------- Toast ---------- */
.toast-region {
  position: fixed; z-index: 90; left: 50%; bottom: var(--s-6); transform: translateX(-50%);
  display: flex; flex-direction: column; gap: var(--s-2); width: min(92vw, 440px); pointer-events: none;
}
.toast {
  pointer-events: auto; padding: var(--s-3) var(--s-4); border-radius: 12px; background: var(--c-heading);
  color: #fff; font-size: 14px; box-shadow: var(--shadow-pop);
}
.toast.t-success { background: #14532D; }
.toast.t-danger { background: #7F1D1D; }

/* ---------- Progress ---------- */
.bar { height: 8px; border-radius: var(--radius-pill); background: #E7EDF5; overflow: hidden; }
.bar > span { display: block; height: 100%; border-radius: inherit; background: var(--c-primary); }
.bar.violet > span { background: var(--c-violet); }
.bar.success > span { background: var(--c-success); }
.bar.danger > span { background: #DC2626; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
}