:root {
  --bg: #f4f6f8;
  --card-bg: #ffffff;
  --border: #e1e5ea;
  --text: #1a2233;
  --text-2: #5b6577;
  --accent: #1a7f4b;
  --accent-hover: #146339;
  --danger: #c0392b;
  --warn: #b7791f;
  --radius: 10px;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}

.view { min-height: 100vh; }
[hidden] { display: none !important; }

/* ══════ LOGIN ══════ */
#view-login {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; padding: 20px;
}
.login-card {
  width: 100%; max-width: 360px;
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 32px 28px;
  box-shadow: 0 4px 24px rgba(0,0,0,.06);
}
.login-title { font-size: 20px; font-weight: 700; text-align: center; }
.login-sub { font-size: 12px; color: var(--text-2); text-align: center; margin: 4px 0 20px; }

/* ══════ FORM ══════ */
.field { margin-bottom: 14px; }
.field label {
  display: block; font-size: 11px; font-weight: 600; color: var(--text-2);
  text-transform: uppercase; letter-spacing: .3px; margin-bottom: 5px;
}
.field input {
  width: 100%; padding: 9px 12px; border: 1px solid var(--border);
  border-radius: 8px; font-size: 14px; font-family: inherit;
}
.field input:focus { outline: none; border-color: var(--accent); }

.btn {
  width: 100%; padding: 11px; border: none; border-radius: 8px;
  background: var(--accent); color: #fff; font-weight: 700; font-size: 13px;
  cursor: pointer; margin-top: 6px;
}
.btn:hover { background: var(--accent-hover); }
.btn:disabled { opacity: .5; cursor: default; }

.btn-sec {
  padding: 8px 16px; border: 1px solid var(--border); border-radius: 8px;
  background: #fff; color: var(--text); font-size: 13px; cursor: pointer;
}
.btn-sec:hover { background: #f0f2f5; }
.btn-sec:disabled { opacity: .4; cursor: default; }

.btn-link {
  background: none; border: none; color: var(--text-2); cursor: pointer;
  font-size: 13px; text-decoration: underline;
}

.status { min-height: 16px; font-size: 12px; margin-top: 10px; color: var(--danger); }
.status.info { color: var(--text-2); }
.status.ok { color: var(--accent); }

/* ══════ TOPBAR / TABS ══════ */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px; background: var(--card-bg); border-bottom: 1px solid var(--border);
}
.topbar-title { font-weight: 700; font-size: 15px; }
.topbar-right { display: flex; align-items: center; gap: 14px; font-size: 12px; color: var(--text-2); }

.tabs { display: flex; gap: 4px; padding: 0 24px; background: var(--card-bg); border-bottom: 1px solid var(--border); }
.tab {
  padding: 12px 16px; border: none; background: none; cursor: pointer;
  font-size: 13px; color: var(--text-2); border-bottom: 2px solid transparent;
}
.tab.active { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }

.content { padding: 24px; max-width: 1100px; margin: 0 auto; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ══════ DASHBOARD ══════ */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; margin-bottom: 18px; }
.card {
  background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px; text-align: center;
}
.card-value { font-size: 24px; font-weight: 800; }
.card-label { font-size: 11px; color: var(--text-2); margin-top: 4px; text-transform: uppercase; letter-spacing: .3px; }

/* ══════ TOOLBAR / TABLE ══════ */
.toolbar { display: flex; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; }
.toolbar input[type="text"] {
  flex: 1; min-width: 220px; padding: 9px 12px; border: 1px solid var(--border);
  border-radius: 8px; font-size: 13px;
}
.toolbar select { padding: 9px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 13px; }

.table-wrap { overflow-x: auto; background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 720px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { font-size: 11px; text-transform: uppercase; letter-spacing: .3px; color: var(--text-2); }
tbody tr:hover { background: #fafbfc; cursor: pointer; }
td.empty { text-align: center; color: var(--text-2); padding: 24px; cursor: default; }

.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px; font-weight: 700; }
.badge.active { background: #e6f4ea; color: var(--accent); }
.badge.pending { background: #fff4e0; color: var(--warn); }
.badge.disabled { background: #f3e8fd; color: #7c3aed; }
.badge.expired { background: #fde8e8; color: var(--danger); }
.badge.archived { background: #eceff1; color: #546e7a; }
.badge.unknown { background: #eceff1; color: var(--text-2); }

.row-actions { display: flex; gap: 6px; }
.row-actions button { font-size: 11px; padding: 4px 8px; }

.pager { display: flex; align-items: center; justify-content: center; gap: 16px; margin-top: 14px; }
.pager span { font-size: 12px; color: var(--text-2); }

/* ══════ FORM CARD (add user / csv) ══════ */
.form-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; max-width: 480px; }
.form-meta { font-size: 12px; color: var(--text-2); margin: 10px 0; line-height: 1.6; }
.form-meta code { background: #f0f2f5; padding: 1px 5px; border-radius: 4px; }

/* ══════ MODAL ══════ */
#modal-overlay {
  position: fixed; inset: 0; background: rgba(20,25,35,.5);
  display: flex; align-items: center; justify-content: center; z-index: 1000; padding: 20px;
}
.modal { width: 100%; max-width: 480px; max-height: 88vh; overflow-y: auto; background: var(--card-bg); border-radius: var(--radius); }
.modal-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--border); font-weight: 700;
}
.modal-close { background: none; border: none; font-size: 22px; cursor: pointer; color: var(--text-2); line-height: 1; }
.modal-body { padding: 18px 20px; }
.modal-foot { padding: 14px 20px; border-top: 1px solid var(--border); display: flex; flex-wrap: wrap; gap: 8px; }

.info-row { display: flex; justify-content: space-between; padding: 6px 0; border-bottom: 1px solid #f0f2f5; font-size: 13px; }
.info-row .irl { color: var(--text-2); }
.info-row .irv { font-weight: 600; text-align: right; }

.device-card { background: #f9fafb; border: 1px solid var(--border); border-radius: 8px; padding: 10px 12px; margin-top: 8px; font-size: 12px; }

/* ══════ RESPONSIVE ══════ */
@media (max-width: 720px) {
  .content { padding: 14px; }
  .topbar { padding: 12px 14px; }
  .tabs { padding: 0 14px; overflow-x: auto; }
}