:root {
  --bg: #0f1115;
  --panel: #1a1d24;
  --panel-2: #20242d;
  --border: #2a2f3a;
  --text: #e6e9ef;
  --muted: #8b93a3;
  --accent: #4f8cff;
  --green: #2ecc71;
  --red: #ff5c5c;
  --amber: #f5a623;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}

.muted { color: var(--muted); }
.center { text-align: center; }
.left { text-align: left !important; }

/* ===== Login ===== */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}
.login-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px;
  width: 340px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}
.login-card h1 { margin: 0; font-size: 22px; }
.login-card p { margin: 0 0 8px; }
.login-card label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
}
.login-card input {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--text);
  font-size: 14px;
}
.login-card input:focus { outline: none; border-color: var(--accent); }
.login-card button {
  margin-top: 6px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 11px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}
.login-card button:disabled { opacity: 0.6; cursor: default; }
.error {
  background: rgba(255, 92, 92, 0.12);
  border: 1px solid var(--red);
  color: var(--red);
  border-radius: 8px;
  padding: 9px 12px;
  font-size: 13px;
}

/* ===== Topbar ===== */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}
.brand { font-weight: 700; font-size: 16px; }
.topbar-right { display: flex; align-items: center; gap: 14px; }
.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 7px 14px;
  cursor: pointer;
}
.btn-ghost:hover { border-color: var(--accent); }

/* ===== Layout ===== */
.container { padding: 20px 24px; max-width: 1280px; margin: 0 auto; }
.controls {
  display: flex;
  gap: 14px;
  align-items: flex-end;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.control { display: flex; flex-direction: column; gap: 6px; }
.control.grow { flex: 1; }
.control label { font-size: 12px; color: var(--muted); }
.control select,
.control input {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 11px;
  color: var(--text);
  font-size: 14px;
  min-width: 140px;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 9px 16px;
  font-weight: 600;
  cursor: pointer;
}
.btn-primary:disabled { opacity: 0.6; cursor: default; }

.summary { margin-bottom: 12px; font-size: 13px; }

/* ===== Table ===== */
.table-wrap {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: auto;
}
table { width: 100%; border-collapse: collapse; }
thead th {
  position: sticky;
  top: 0;
  background: var(--panel-2);
  text-align: right;
  padding: 11px 14px;
  font-size: 12px;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  white-space: nowrap;
  user-select: none;
}
thead th:hover { color: var(--text); }
thead th.active { color: var(--accent); }
tbody td {
  text-align: right;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
tbody tr:hover { background: rgba(79, 140, 255, 0.06); }
td.title-cell { text-align: left; max-width: 360px; white-space: normal; }
td.title-cell a { color: var(--text); text-decoration: none; }
td.title-cell a:hover { color: var(--accent); text-decoration: underline; }

.pos { color: var(--green); }
.neg { color: var(--red); }

.badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 999px;
}
.badge-new { background: rgba(46, 204, 113, 0.15); color: var(--green); }
.badge-up { background: rgba(79, 140, 255, 0.15); color: var(--accent); }
.badge-down { background: rgba(255, 92, 92, 0.15); color: var(--red); }
.badge-flat { background: rgba(139, 147, 163, 0.15); color: var(--muted); }

/* ===== Staff: an cot doanh thu (server cung da cat data) ===== */
body.staff .rev-col { display: none; }

/* ===== Modal quan ly tai khoan ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 60px 16px;
  z-index: 100;
  overflow-y: auto;
}
/* display:flex o tren de hidden attribute bi vo hieu — phai ep lai */
.modal-overlay[hidden] { display: none !important; }
.modal {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px;
  width: 680px;
  max-width: 100%;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.5);
}
.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.modal-head h2 { margin: 0; font-size: 17px; }

.user-form {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.uf-row { display: flex; gap: 10px; align-items: flex-end; }
.uf-row label {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-size: 12px;
  color: var(--muted);
}
.uf-row input, .uf-row select {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  color: var(--text);
  font-size: 13px;
}
.uf-msg {
  font-size: 13px;
  color: var(--green);
  background: rgba(46, 204, 113, 0.1);
  border-radius: 8px;
  padding: 8px 10px;
}
.uf-msg.err { color: var(--red); background: rgba(255, 92, 92, 0.1); }

.users-table { width: 100%; border-collapse: collapse; }
.users-table th {
  text-align: center;
  font-size: 12px;
  color: var(--muted);
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
}
.users-table td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  text-align: center;
  white-space: normal;
}
.btn-del {
  background: transparent;
  border: 1px solid var(--red);
  color: var(--red);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 12px;
  cursor: pointer;
}
.btn-del:hover { background: rgba(255, 92, 92, 0.12); }