:root {
  --primary: #1e6f5c;
  --primary-dark: #155445;
  --primary-light: #e6f2ef;
  --accent: #f4a825;
  --bg: #f4f6f9;
  --card: #ffffff;
  --text: #1f2933;
  --muted: #6b7480;
  --border: #dde3ea;
  --danger: #c0392b;
  --friday: #f3e9f3;
  --guest: #fdf3d7;
  --radius: 10px;
  --shadow: 0 1px 4px rgba(20, 40, 60, 0.08);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  padding-bottom: 40px;
}

h1, h2, h3 { margin: 0 0 8px; }
main { padding: 12px; max-width: 1400px; margin: 0 auto; }

/* ---------- buttons ---------- */
.btn {
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s, transform 0.05s;
}
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-danger { background: #fdecea; border-color: #f5c6c0; color: var(--danger); }
.btn-ghost { background: transparent; }
.btn-block { width: 100%; }
.btn-sm { padding: 4px 10px; font-size: 13px; }

/* ---------- topbar ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--primary); color: #fff; padding: 10px 16px;
  position: sticky; top: 0; z-index: 50;
}
.topbar-title { display: flex; align-items: center; gap: 10px; }
.topbar .logo { font-size: 26px; }
.topbar .logo-img { height: 38px; width: 38px; object-fit: contain; background: #fff; border-radius: 50%; padding: 3px; }
.topbar h1 { font-size: 18px; margin: 0; line-height: 1.1; }
.topbar small { opacity: 0.85; }
.topbar .btn-ghost { color: #fff; border-color: rgba(255,255,255,0.4); }

/* ---------- tabs ---------- */
.tabs {
  display: flex; gap: 4px; padding: 8px 12px 0;
  background: var(--primary); position: sticky; top: 54px; z-index: 49;
  overflow-x: auto;
}
.tab {
  border: none; background: rgba(255,255,255,0.15); color: #fff;
  padding: 9px 16px; border-radius: 8px 8px 0 0; cursor: pointer;
  font-size: 14px; white-space: nowrap;
}
.tab.active { background: var(--bg); color: var(--text); font-weight: 600; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ---------- toolbar / chips ---------- */
.toolbar {
  display: flex; flex-wrap: wrap; gap: 8px; align-items: center;
  margin: 10px 0;
}
.toolbar .spacer { flex: 1; }
.chip {
  background: var(--card); border: 1px solid var(--border);
  padding: 6px 12px; border-radius: 999px; font-size: 13px; color: var(--muted);
  display: inline-flex; align-items: center; gap: 6px;
}
.chip b { color: var(--text); }
.chip.open { background: #e7f6ec; border-color: #bfe3cc; color: #1d7a3e; }
.chip.closed { background: #fdecea; border-color: #f5c6c0; color: var(--danger); }
.check-chip { cursor: pointer; }

/* ---------- cards ---------- */
.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px; box-shadow: var(--shadow);
  margin-bottom: 12px;
}
.center-card { text-align: center; padding: 40px 16px; }
.center-card p { color: var(--muted); }
.new-month-form { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin-top: 12px; }
.hint { color: var(--muted); font-size: 13px; margin: 10px 2px; }

/* ---------- sheet grid ---------- */
.grid-wrap {
  overflow: auto; background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
  max-height: calc(100vh - 220px);
}
.grid { border-collapse: separate; border-spacing: 0; width: max-content; font-size: 13px; }
.grid th, .grid td {
  border-right: 1px solid var(--border); border-bottom: 1px solid var(--border);
  padding: 0; text-align: center; background: var(--card);
}
.grid thead th {
  position: sticky; top: 0; z-index: 3;
  background: var(--primary-light); font-weight: 600; padding: 6px 4px;
}
.grid thead th .dow { display: block; font-weight: 400; font-size: 10px; color: var(--muted); }
.grid th.col-sl, .grid td.col-sl { position: sticky; left: 0; z-index: 2; min-width: 34px; }
.grid th.col-name, .grid td.col-name {
  position: sticky; left: 34px; z-index: 2; min-width: 150px; max-width: 190px;
  text-align: left; padding: 4px 8px;
  box-shadow: 2px 0 3px rgba(0,0,0,0.06);
}
.grid thead th.col-sl, .grid thead th.col-name { z-index: 4; }
.grid td.col-name .rate { color: var(--muted); font-size: 11px; }
.grid td.day-cell {
  min-width: 30px; height: 32px; cursor: pointer; user-select: none;
  -webkit-user-select: none; -webkit-touch-callout: none;
  font-weight: 600; color: var(--primary-dark);
}
.grid td.day-cell:hover { background: var(--primary-light); }
.grid .fri { background: var(--friday); }
.grid td.day-cell.fri:hover { background: #e8d5e8; }
.grid .today-col { outline: 2px solid var(--accent); outline-offset: -2px; }
.grid thead th.today-col { background: var(--accent); color: #fff; }
.grid thead th.today-col .dow { color: #fff7e6; }
.grid td.day-cell.today-col { background: #fff7e6; }
.grid td.day-cell.today-col:hover { background: #ffedc7; }
.grid tr.guest-row td { background: var(--guest); font-weight: 600; }
.grid tr.total-row td {
  background: #dbe7d9; font-weight: 700; padding: 6px 4px;
  position: sticky; bottom: 0; z-index: 2;
}
.grid tr.total-row td.col-sl, .grid tr.total-row td.col-name { z-index: 3; }
.grid td.num { font-weight: 700; padding: 4px 6px; }
.grid.readonly td.day-cell { cursor: default; }
.grid tr:hover td { filter: brightness(0.985); }

/* ---------- day entry ---------- */
.day-nav { display: flex; gap: 6px; align-items: center; }
.day-nav input[type="date"] {
  padding: 8px; border: 1px solid var(--border); border-radius: 8px; font-size: 15px;
  background: var(--card);
}
.day-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 8px; }
.day-item {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 10px 12px; box-shadow: var(--shadow);
}
.day-item.has-meal { border-color: var(--primary); background: var(--primary-light); }
.day-item.guest-item { background: var(--guest); border-color: #ecd9a0; }
.day-item .who { min-width: 0; }
.day-item .who .nm { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.day-item .who .sub { font-size: 12px; color: var(--muted); }
.counter { display: flex; align-items: center; gap: 4px; }
.counter button {
  width: 42px; height: 42px; border-radius: 10px; border: 1px solid var(--border);
  background: var(--card); font-size: 20px; cursor: pointer; line-height: 1;
}
.counter button:active { transform: scale(0.94); }
.counter .cnt { min-width: 34px; text-align: center; font-size: 18px; font-weight: 700; }

/* ---------- employees ---------- */
.emp-form { display: flex; gap: 8px; flex-wrap: wrap; }
.emp-form input, .emp-form select, .new-month-form select {
  padding: 9px 10px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px;
  background: #fff;
}
.emp-form input[type="text"] { flex: 2; min-width: 160px; }
.emp-form input[type="email"] { flex: 2; min-width: 180px; }
.emp-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 8px; }
.emp-item {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 10px 12px; box-shadow: var(--shadow);
  display: flex; justify-content: space-between; align-items: center; gap: 8px;
}
.emp-item.inactive { opacity: 0.55; }
.emp-item .who { min-width: 0; }
.emp-item .nm { font-weight: 600; }
.emp-item .sub { font-size: 12px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.emp-item .actions { display: flex; gap: 4px; flex-shrink: 0; }

/* ---------- history ---------- */
.history-list { display: flex; flex-direction: column; gap: 8px; }
.history-item {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 12px 14px; box-shadow: var(--shadow);
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px;
}
.history-item .label { font-weight: 700; font-size: 16px; min-width: 140px; }
.history-item .stats { color: var(--muted); font-size: 13px; flex: 1; min-width: 180px; }
.history-item .actions { display: flex; gap: 6px; flex-wrap: wrap; }

/* ---------- modal ---------- */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(15, 25, 35, 0.45); z-index: 100;
  display: flex; align-items: center; justify-content: center; padding: 16px;
}
.modal-backdrop[hidden] { display: none; }
.modal {
  background: var(--card); border-radius: 14px; padding: 20px;
  width: 100%; max-width: 420px; max-height: 85vh; overflow: auto;
  box-shadow: 0 10px 40px rgba(0,0,0,0.25);
}
.modal h3 { margin-bottom: 12px; }
.modal .row { display: flex; gap: 8px; margin: 10px 0; align-items: center; flex-wrap: wrap; }
.modal input, .modal select {
  padding: 9px 10px; border: 1px solid var(--border); border-radius: 8px; font-size: 15px; flex: 1;
}
.modal .modal-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 16px; }
.modal .big-num { font-size: 22px; text-align: center; }
.mail-result { max-height: 300px; overflow: auto; font-size: 13px; margin-top: 8px; }
.mail-result div { padding: 4px 6px; border-bottom: 1px solid var(--border); }
.mail-result .ok { color: #1d7a3e; }
.mail-result .fail { color: var(--danger); }
.mail-result .skip { color: var(--muted); }

/* ---------- toasts ---------- */
.toasts { position: fixed; bottom: 16px; left: 50%; transform: translateX(-50%); z-index: 200; display: flex; flex-direction: column; gap: 6px; width: min(92vw, 420px); }
.toast {
  background: #263238; color: #fff; padding: 10px 16px; border-radius: 10px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.3); font-size: 14px; text-align: center;
  animation: toast-in 0.2s ease;
}
.toast.error { background: var(--danger); }
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } }

/* ---------- login ---------- */
.login-body {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--primary) 0%, #2a9d8f 100%);
  padding: 16px;
}
.login-card {
  background: #fff; border-radius: 16px; padding: 32px 28px; width: 100%; max-width: 360px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.25); text-align: center;
}
.login-logo { font-size: 48px; }
.login-logo-img { max-width: 240px; width: 100%; height: auto; margin-bottom: 6px; }
.login-card h1 { margin: 4px 0 0; }
.login-sub { color: var(--muted); margin-top: 2px; }
.login-card form { text-align: left; margin-top: 18px; }
.login-card label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 12px; }
.login-card input {
  width: 100%; padding: 11px 12px; margin-top: 4px;
  border: 1px solid var(--border); border-radius: 8px; font-size: 15px;
}
.login-error { color: var(--danger); font-size: 13px; text-align: center; margin-top: 10px; }

/* ---------- mobile ---------- */
@media (max-width: 640px) {
  body { font-size: 14px; }
  main { padding: 8px; }
  .topbar h1 { font-size: 16px; }
  .tabs { top: 50px; }
  .grid-wrap { max-height: calc(100vh - 250px); }
  .grid th.col-name, .grid td.col-name { min-width: 120px; max-width: 140px; left: 30px; }
  .grid th.col-sl, .grid td.col-sl { min-width: 30px; }
  .grid td.day-cell { min-width: 34px; height: 38px; }
  .history-item .actions { width: 100%; }
  .emp-form input[type="text"], .emp-form input[type="email"] { min-width: 100%; }
}