/* =========================================================
   THEME: Bếp Ăn Tập Thể — Trắng / Cam / Xanh dương
   ========================================================= */
@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:wght@400;500;600;700;800&display=swap');

/* --- THEME 1: MẶC ĐỊNH (XANH - CAM - TRẮNG) --- */
:root {
  --blue-900: #0b2a5b;
  --blue-800: #0f3a7d;
  --blue-700: #1348a8;
  --blue-600: #1d5fd1;
  --blue-500: #2f74e6;
  --blue-100: #e3edfc;
  --blue-50:  #f2f7fe;

  --orange-700: #c2410c;
  --orange-600: #ea580c;
  --orange-500: #f97316;
  --orange-100: #ffedd5;
  --orange-50:  #fff7ed;

  --white: #ffffff;
  --bg: #f5f7fb;
  --surface: #ffffff;
  --border: #e3e8f0;
  --border-strong: #cfd7e3;
  --text: #16223a;
  --text-muted: #64748b;
  --text-soft: #94a3b8;

  --success: #16a34a;
  --danger: #dc2626;

  /* Biến dùng lại từ script manager.html */
  --primary: var(--blue-600);
  --primary-hover: var(--blue-700);
  --gray-light: var(--blue-50);
  --gray-border: var(--border);
  --text-main: var(--text);

  --hero-gradient: linear-gradient(160deg, rgba(11, 42, 91, 0.92) 0%, rgba(19, 72, 168, 0.82) 55%, rgba(11, 42, 91, 0.75) 100%);

  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(15, 35, 75, 0.06);
  --shadow: 0 4px 16px rgba(15, 35, 75, 0.07);
  --shadow-lg: 0 18px 40px rgba(15, 35, 75, 0.14);
  --font: 'Be Vietnam Pro', 'Segoe UI', Tahoma, sans-serif;
}

/* --- THEME 2: ĐỎ - ĐEN - TRẮNG --- */
[data-theme="dark-red"] {
  --blue-900: #000000;         /* Header/Sidebar Đen tuyền */
  --blue-800: #111111;         /* Khối viền đen xám */
  --blue-700: #b91c1c;         /* Tông màu Đỏ chủ đạo */
  --blue-600: #dc2626;         /* Đỏ tươi cho nút / điểm nhấn */
  --blue-500: #ef4444;
  --blue-100: #fee2e2;
  --blue-50:  #fef2f2;         /* Nền nhạt tông đỏ nhẹ */

  --orange-700: #7f1d1d;
  --orange-600: #991b1b;
  --orange-500: #dc2626;       /* Đổi sắc Cam thành Đỏ Đô */
  --orange-100: #fee2e2;
  --orange-50:  #fef2f2;

  --bg: #f4f4f5;               /* Nền trang xám nhạt */
  --white: #ffffff;
  --surface: #ffffff;
  --border: #d4d4d8;
  --border-strong: #a1a1aa;
  --text: #000000;
  --text-muted: #52525b;
  --text-soft: #71717a;

  --hero-gradient: linear-gradient(160deg, rgba(0, 0, 0, 0.95) 0%, rgba(185, 28, 28, 0.9) 60%, rgba(0, 0, 0, 0.95) 100%);
}

*, *::before, *::after { box-sizing: border-box; }

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

h1, h2, h3, h4 { font-family: var(--font); color: var(--blue-900); line-height: 1.3; letter-spacing: -0.01em; }
h3 { font-size: 17px; font-weight: 700; margin: 0 0 16px; }
h4 { font-size: 15px; font-weight: 700; }
a { color: var(--blue-600); }

/* ---------- TOP BAR ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.topbar::after {
  content: ""; display: block; height: 3px;
  background: linear-gradient(90deg, var(--blue-600) 0%, var(--blue-600) 62%, var(--orange-500) 62%, var(--orange-500) 100%);
}
.topbar-inner {
  max-width: 1280px; margin: 0 auto; padding: 12px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.brand-mark {
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--orange-500); color: var(--white);
  display: grid; place-items: center; font-size: 18px;
  box-shadow: 0 6px 14px rgba(249, 115, 22, 0.35);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-name { font-weight: 800; font-size: 15px; color: var(--blue-900); letter-spacing: 0.01em; }
.brand-sub { font-size: 12px; color: var(--text-muted); font-weight: 500; }

.topbar-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.user-chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px 6px 6px; border-radius: 999px;
  background: var(--blue-50); border: 1px solid var(--blue-100);
  font-size: 13px; color: var(--text-muted);
}
.user-chip .avatar {
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--blue-600); color: var(--white);
  display: grid; place-items: center; font-size: 12px;
}
.user-chip b { color: var(--blue-800); font-weight: 700; }

/* ---------- PAGE ---------- */
.page { max-width: 1280px; margin: 0 auto; padding: 28px 24px 48px; }
.page-narrow { max-width: 1040px; }

.page-head {
  display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; flex-wrap: wrap;
  margin-bottom: 24px;
}
.page-eyebrow {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--orange-600); margin-bottom: 6px;
}
.page-title { margin: 0; font-size: 26px; font-weight: 800; color: var(--blue-900); }
.page-desc { margin: 6px 0 0; color: var(--text-muted); font-size: 14px; max-width: 640px; }

/* ---------- CARD ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
}
.card-head {
  display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap;
  margin-bottom: 18px;
}
.card-title {
  display: flex; align-items: center; gap: 10px;
  margin: 0; font-size: 17px; font-weight: 700; color: var(--blue-900);
}
.card-title .icon {
  width: 34px; height: 34px; border-radius: 9px;
  display: grid; place-items: center; font-size: 15px;
  background: var(--blue-50); color: var(--blue-600);
}
.card-title .icon.orange { background: var(--orange-50); color: var(--orange-600); }
.card-sub { margin: 4px 0 0; font-size: 13px; color: var(--text-muted); }
.card-accent-blue { border-top: 4px solid var(--blue-600); }
.card-accent-orange { border-top: 4px solid var(--orange-500); }

/* ---------- FORM ---------- */
.form-group { margin-bottom: 14px; }
label { display: block; font-weight: 600; font-size: 13px; color: var(--blue-900); margin-bottom: 6px; }
input, select, textarea {
  width: 100%; padding: 10px 12px;
  font-family: var(--font); font-size: 14px; color: var(--text);
  background: var(--white);
  border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
  outline: none; transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--blue-500);
  box-shadow: 0 0 0 3px rgba(47, 116, 230, 0.15);
}
input[disabled] { background: var(--bg); color: var(--text-muted); }
input[type="checkbox"] { width: auto; accent-color: var(--orange-500); }
input[type="file"] { padding: 7px 10px; background: var(--blue-50); border-style: dashed; cursor: pointer; }
input[type="file"]::file-selector-button {
  font-family: var(--font); font-weight: 600; font-size: 12px;
  border: none; border-radius: 6px; padding: 6px 12px; margin-right: 10px;
  background: var(--blue-600); color: var(--white); cursor: pointer;
}

.row { display: flex; gap: 16px; flex-wrap: wrap; }
.col { flex: 1; min-width: 180px; }

.inline-field { display: flex; align-items: center; gap: 8px; }
.inline-field label { margin: 0; white-space: nowrap; color: var(--text-muted); font-weight: 600; }
.inline-field input, .inline-field select { width: auto; }

/* ---------- BUTTON ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  padding: 9px 16px;
  font-family: var(--font); font-size: 13px; font-weight: 600; line-height: 1.2;
  color: var(--white); background: var(--blue-600);
  border: 1px solid transparent; border-radius: var(--radius-sm);
  cursor: pointer; white-space: nowrap;
  transition: background .15s, box-shadow .15s, transform .1s, color .15s, border-color .15s;
}
.btn:hover { filter: none; }
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: none; box-shadow: 0 0 0 3px rgba(47, 116, 230, 0.3); }

.btn-primary { background: var(--blue-600); }
.btn-primary:hover { background: var(--blue-700); }

.btn-warning, .btn-accent { background: var(--orange-500); color: var(--white); }
.btn-warning:hover, .btn-accent:hover { background: var(--orange-600); }

.btn-success { background: var(--success); }
.btn-success:hover { background: #15803d; }

.btn-danger { background: var(--danger); }
.btn-danger:hover { background: #b91c1c; }

.btn-secondary { background: var(--white); color: var(--blue-800); border-color: var(--border-strong); }
.btn-secondary:hover { background: var(--blue-50); border-color: var(--blue-500); color: var(--blue-700); }

.btn-edit { background: var(--orange-500); }
.btn-edit:hover { background: var(--orange-600); }
.btn-reset { background: var(--blue-800); }
.btn-reset:hover { background: var(--blue-900); }

.btn-ghost { background: transparent; color: var(--blue-700); border-color: transparent; }
.btn-ghost:hover { background: var(--blue-50); }

.btn-lg { padding: 12px 20px; font-size: 14px; border-radius: 10px; }
.btn-block { width: 100%; }

/* ---------- TABLE ---------- */
.table-wrap { width: 100%; overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 11px 12px; font-size: 13px; text-align: left; border-bottom: 1px solid var(--border); border-left: none; border-right: none; border-top: none; }
th {
  background: var(--blue-50); color: var(--blue-800);
  font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.03em;
  border-bottom: 1px solid var(--blue-100);
}
tbody tr { transition: background .12s; }
tbody tr:hover { background: #fafcff; }
tbody tr:last-child td { border-bottom: none; }
tfoot td { border-top: 1px solid var(--border); border-bottom: none; }
.table-wrap table { margin-top: 0; }

/* ---------- TABS ---------- */
.tabs-nav {
  display: inline-flex; gap: 4px; padding: 4px;
  background: var(--blue-50); border: 1px solid var(--blue-100);
  border-radius: 12px; margin-bottom: 18px; flex-wrap: wrap;
}
.tab-item {
  padding: 9px 16px; border-radius: 99px;
  font-size: 13px; font-weight: 600; color: var(--text-muted);
  cursor: pointer; user-select: none; border: none;
  transition: background .15s, color .15s, box-shadow .15s;
}
.tab-item:hover { color: var(--blue-700); }
.tab-item.active { background: var(--white); color: var(--blue-700); box-shadow: 0 2px 6px rgba(15, 35, 75, 0.1); }

/* ---------- STAT CARDS ---------- */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; margin-bottom: 20px; }
.stat-card {
  position: relative; overflow: hidden;
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 20px 22px;
  box-shadow: var(--shadow-sm);
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  color: var(--text); text-align: left;
}
.stat-card::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 5px; }
.stat-label { font-size: 12px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-muted); }
.stat-number { font-size: 36px; font-weight: 800; line-height: 1.1; margin-top: 6px; color: var(--blue-900); }
.stat-icon { width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; font-size: 22px; flex-shrink: 0; }
.stat-eating::before { background: var(--blue-600); }
.stat-eating .stat-icon { background: var(--blue-50); color: var(--blue-600); }
.stat-eating .stat-number { color: var(--blue-700); }
.stat-cancelled::before { background: var(--orange-500); }
.stat-cancelled .stat-icon { background: var(--orange-50); color: var(--orange-600); }
.stat-cancelled .stat-number { color: var(--orange-600); }

/* ---------- MODAL ---------- */
.modal {
  display: none; position: fixed; inset: 0; z-index: 1000;
  background: rgba(11, 42, 91, 0.45); backdrop-filter: blur(3px);
  overflow-y: auto; padding: 24px 16px;
}
.modal-content {
  background: var(--white); margin: 6vh auto 0; padding: 26px;
  border-radius: var(--radius-lg); width: 100%; max-width: 460px;
  box-shadow: var(--shadow-lg); border-top: 4px solid var(--orange-500);
}
.modal-title { display: flex; align-items: center; gap: 10px; margin: 0 0 18px; font-size: 18px; }
.modal-title .icon { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; background: var(--orange-50); color: var(--orange-600); font-size: 15px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 20px; }

/* ---------- MISC ---------- */
.badge { display: inline-flex; align-items: center; padding: 3px 10px; border-radius: 999px; font-weight: 700; font-size: 11px; }
.badge-hr { background: var(--orange-100); color: var(--orange-700); }
.badge-mgr { background: var(--blue-100); color: var(--blue-700); }

.muted { color: var(--text-muted); }
.divider { height: 1px; background: var(--border); margin: 18px 0; border: none; }
.toolbar { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.toolbar-panel {
  display: flex; gap: 16px; align-items: flex-end; flex-wrap: wrap;
  background: var(--blue-50); border: 1px solid var(--blue-100);
  border-radius: var(--radius); padding: 14px 16px; margin-bottom: 16px;
}
.toolbar-panel .form-group { margin: 0; }
.toolbar-panel input, .toolbar-panel select { width: auto; min-width: 160px; }

.site-footer { text-align: center; color: var(--text-soft); font-size: 12px; padding: 0 24px 28px; }

@media (max-width: 720px) {
  .page { padding: 20px 14px 36px; }
  .topbar-inner { padding: 10px 14px; }
  .page-title { font-size: 21px; }
  .card { padding: 16px; border-radius: 14px; }
  .brand-sub { display: none; }
}