:root {
  --bg: #E0E0E4; --surface: #FFFFFF; --accent: #6B9FE4; --accent-dark: #4A7FC1;
  --accent-soft: #EEF3FB; --text1: #111111; --text2: #6E6E73; --text3: #AEAEB2;
  --border: #E5E5EA; --topbar: 58px;
  --font: -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: var(--font); background: var(--bg); color: var(--text1); min-height: 100vh; }
.wordmark { font-weight: 600; letter-spacing: 0.35em; color: var(--text1); }

/* ── Login ── */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 36px 32px; box-shadow: 0 1px 4px rgba(0,0,0,.06); }
.login-card { width: 100%; max-width: 380px; text-align: center; }
.login-card .wordmark { font-size: 19px; display: block; margin-bottom: 4px; }
.login-card h1 { font-size: 22px; font-weight: 700; margin-bottom: 24px; color: var(--text2); }
.field { display: block; width: 100%; margin-bottom: 12px; padding: 12px 14px; font-size: 15px; font-family: var(--font); border: 1px solid var(--border); border-radius: 10px; background: #FAFAFC; }
.field:focus { outline: 2px solid var(--accent); border-color: transparent; }
.btn { display: inline-block; width: 100%; padding: 12px; font-size: 15px; font-weight: 700; font-family: var(--font); color: #fff; background: var(--accent); border: none; border-radius: 10px; cursor: pointer; }
.btn:hover { background: var(--accent-dark); }
.error { color: #C0392B; font-size: 14px; min-height: 20px; margin-top: 10px; }

/* ── Shell: fixed top bar ── */
.topbar { position: fixed; top: 0; left: 0; right: 0; height: var(--topbar); background: var(--surface); border-bottom: 1px solid rgba(0,0,0,.10); display: flex; align-items: center; gap: 6px; padding: 0 22px; z-index: 50; }
.topbar .brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; margin-right: 22px; white-space: nowrap; }
.topbar .brand-logo { height: 26px; width: auto; display: block; }
.topbar .brand .wordmark { font-size: 15px; }
.topbar .brand-sub { align-self: center; }
.topbar .brand-sub { color: var(--text3); font-size: 11.5px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.topbar a.item, .topbar button.item { display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; border-radius: 10px; color: var(--text2); text-decoration: none; font-size: 14.5px; font-weight: 600; font-family: var(--font); background: none; border: none; cursor: pointer; white-space: nowrap; }
.topbar .item .ico { font-size: 17px; }
.topbar .item:hover { background: var(--accent-soft); color: var(--accent-dark); }
.topbar .item.active { color: var(--accent-dark); background: var(--accent-soft); }
.topbar .spacer { flex: 1; }
.topbar .whoami { color: var(--text3); font-size: 12.5px; margin: 0 8px; white-space: nowrap; }
.topbar .menu { display: flex; align-items: center; gap: 6px; flex: 1; min-width: 0; }
.topbar .burger { display: none; margin-left: auto; }
.menu-only { display: none; }

@media (max-width: 760px) {
  .topbar .burger { display: inline-flex; }
  .topbar .menu { display: none; }
  .topbar .menu.open {
    display: flex; flex-direction: column; align-items: stretch; gap: 2px;
    position: fixed; top: calc(var(--topbar) + 6px); right: 10px;
    background: var(--surface); border: 1px solid var(--border); border-radius: 14px;
    box-shadow: 0 14px 36px rgba(0,0,0,.16); padding: 8px; min-width: 240px; z-index: 60;
  }
  .topbar .menu.open .spacer { display: none; }
  .topbar .menu.open .whoami { order: 10; border-top: 1px solid var(--border); margin: 6px 0 0; padding: 10px 14px 4px; }
  .topbar .menu.open .menu-only { display: inline; }
  .topbar .menu.open a.item[title="Change password"] { order: 11; }
  .topbar .menu.open #logout { order: 12; }
  .content { padding: 24px 16px; }
}

/* ── Content ── */
.content { margin-top: var(--topbar); padding: 40px 36px; }
.content.flush { padding: 0; height: calc(100vh - var(--topbar)); }
.page-title { font-size: 30px; font-weight: 700; margin-bottom: 6px; }
.page-sub { color: var(--text2); margin-bottom: 28px; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; max-width: 900px; }
.appcard { display: block; text-decoration: none; color: inherit; }
.appcard .card { transition: box-shadow .15s; }
.appcard:hover .card { box-shadow: 0 6px 20px rgba(0,0,0,.10); }
.appcard h3 { font-size: 17px; margin-bottom: 6px; }
.appcard p { color: var(--text2); font-size: 14px; }
.frame { width: 100%; height: 100%; border: none; display: block; }
.placeholder { max-width: 480px; text-align: center; margin: 15vh auto 0; }
.placeholder .big { font-size: 44px; margin-bottom: 12px; }

/* ── Users page ── */
table.users { width: 100%; max-width: 860px; border-collapse: collapse; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
table.users th, table.users td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--border); font-size: 14.5px; vertical-align: middle; }
table.users th { background: #FAFAFC; color: var(--text2); font-size: 12.5px; text-transform: uppercase; letter-spacing: .05em; }
.mini-btn { padding: 6px 10px; font-size: 12.5px; font-weight: 600; font-family: var(--font); border: 1px solid var(--border); background: var(--surface); border-radius: 8px; cursor: pointer; margin-right: 6px; }
.mini-btn:hover { background: var(--accent-soft); }
.mini-btn.danger { color: #C0392B; }
.addform { max-width: 860px; margin-top: 28px; }
.addform .row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.addform .field { width: 200px; margin-bottom: 0; }
.addform label.chk { font-size: 14px; color: var(--text2); display: inline-flex; align-items: center; gap: 5px; }
.addform .btn { width: auto; padding: 11px 22px; }