* { box-sizing: border-box; }

:root[data-theme="dark"] {
  --bg: #0f1115;
  --bg-elevated: #161923;
  --bg-card: #171b26;
  --bg-input: #1b1f2a;
  --border: #262b38;
  --border-soft: #232734;
  --text: #e6e6e6;
  --text-muted: #8b93a7;
  --text-dim: #626a7d;
  --accent: #5b8cff;
  --accent-strong: #7aa2ff;
  --ok: #4ade80;
  --bad: #f87171;
  --danger-bg: #4a1f24;
  --danger-bg-hover: #612730;
  --danger-border: #7a2a33;
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px rgba(0,0,0,.28);
}

:root[data-theme="light"] {
  --bg: #f4f6fb;
  --bg-elevated: #ffffff;
  --bg-card: #ffffff;
  --bg-input: #ffffff;
  --border: #e2e6ef;
  --border-soft: #eceff5;
  --text: #1c2333;
  --text-muted: #5b6478;
  --text-dim: #94a0b8;
  --accent: #3860e0;
  --accent-strong: #2a4bc4;
  --ok: #16a34a;
  --bad: #dc2626;
  --danger-bg: #fdecec;
  --danger-bg-hover: #fbdada;
  --danger-border: #f3b9b9;
  --shadow: 0 1px 2px rgba(20,30,60,.06), 0 8px 24px rgba(20,30,60,.08);
}

html, body { height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  transition: background .15s ease, color .15s ease;
}

a { color: inherit; }

/* ---------- App shell: sidebar + main column ---------- */
.app-shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 232px;
  flex: none;
  background: var(--bg-elevated);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  z-index: 40;
}
.sidebar-backdrop { display: none; }

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px 18px;
  border-bottom: 1px solid var(--border-soft);
}
.brand-mark {
  width: 32px; height: 32px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 15px;
  flex: none;
}
.brand-name { font-weight: 700; font-size: 15px; letter-spacing: .2px; }
.brand-name em { font-style: normal; color: var(--text-muted); font-weight: 500; }

.nav { display: flex; flex-direction: column; gap: 2px; padding: 14px 10px; flex: 1; overflow-y: auto; }
.nav a {
  display: flex; align-items: center; gap: 12px;
  padding: 9px 12px;
  border-radius: 8px;
  text-decoration: none;
  color: var(--text-muted);
  font-size: 13.5px;
  font-weight: 500;
  transition: background .12s ease, color .12s ease;
}
.nav a svg { width: 18px; height: 18px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.nav a:hover { background: var(--border-soft); color: var(--text); }
.nav a.active { background: color-mix(in srgb, var(--accent) 16%, transparent); color: var(--accent-strong); }

.sidebar-footer {
  border-top: 1px solid var(--border-soft);
  padding: 12px 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.account-link {
  display: flex; align-items: center; gap: 8px;
  flex: 1;
  min-width: 0;
  padding: 6px 8px;
  border-radius: 8px;
  text-decoration: none;
  color: var(--text);
}
.account-link:hover, .account-link.active { background: var(--border-soft); }
.avatar {
  width: 26px; height: 26px; border-radius: 50%;
  background: color-mix(in srgb, var(--accent) 25%, var(--bg-input));
  color: var(--accent-strong);
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 700; flex: none;
}
.who { font-size: 12.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.theme-toggle, .logout-form button {
  background: var(--bg-input); border: 1px solid var(--border); cursor: pointer;
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 8px;
  color: var(--text-muted);
  flex: none;
}
.theme-toggle:hover, .logout-form button:hover { background: var(--border-soft); color: var(--text); border-color: var(--accent); }
.theme-toggle svg, .logout-form button svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.theme-toggle .icon-moon { display: none; }
:root[data-theme="light"] .theme-toggle .icon-sun { display: none; }
:root[data-theme="light"] .theme-toggle .icon-moon { display: block; }
.theme-toggle.standalone { position: absolute; top: 16px; right: 16px; background: var(--bg-card); border: 1px solid var(--border); box-shadow: var(--shadow); }

/* ---------- Main column ---------- */
.main-col { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.topbar {
  display: none;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 30;
}
.menu-toggle {
  background: none; border: 1px solid var(--border); border-radius: 8px;
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  color: var(--text); cursor: pointer;
}
.menu-toggle svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }
.topbar-title { font-weight: 600; font-size: 14px; }

.container { padding: 28px 32px; max-width: 1240px; margin: 0 auto; width: 100%; }

h1 { font-size: 21px; font-weight: 700; margin: 32px 0 14px; letter-spacing: -.2px; }
h1:first-child { margin-top: 0; }
h2 { font-size: 15px; font-weight: 600; color: var(--text-muted); margin: 20px 0 10px; }

/* ---------- Cards: tables & forms get a boxed, elevated look ---------- */
table.grid, form:not(.inline-form) {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
}
table.grid {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin-bottom: 22px;
  font-size: 13px;
  overflow: hidden;
  display: block;
  overflow-x: auto;
  white-space: nowrap;
}
table.grid thead, table.grid tbody { display: table; width: 100%; table-layout: auto; }
table.grid th, table.grid td { text-align: left; padding: 11px 16px; border-bottom: 1px solid var(--border-soft); white-space: normal; }
table.grid tbody tr:last-child td { border-bottom: none; }
table.grid tbody tr:hover { background: var(--border-soft); }
table.grid th { color: var(--text-muted); font-weight: 600; font-size: 11.5px; text-transform: uppercase; letter-spacing: .04em; background: var(--bg-elevated); }

.ok { color: var(--ok); font-weight: 600; }
.bad { color: var(--bad); font-weight: 600; }

form:not(.inline-form) { padding: 20px 22px; margin-bottom: 22px; max-width: 560px; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; align-items: start; }
.grid-2 form { max-width: none; margin-bottom: 0; }

button {
  background: var(--bg-input); color: var(--text); border: 1px solid var(--border);
  border-radius: 8px; padding: 8px 14px; cursor: pointer; font-size: 13px; font-weight: 500;
  transition: background .12s ease, border-color .12s ease;
}
button:hover { background: var(--border-soft); }
button.primary, button[type=submit] { background: var(--accent); border-color: var(--accent); color: #fff; }
button.primary:hover, button[type=submit]:hover { background: var(--accent-strong); border-color: var(--accent-strong); }
button.danger { background: var(--danger-bg); border-color: var(--danger-border); color: var(--bad); }
button.danger:hover { background: var(--danger-bg-hover); }

.inline-form { display: inline-flex; gap: 6px; align-items: center; }
.muted { color: var(--text-dim); font-size: 12px; }

.filter-bar { flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.filter-bar input[type=text], .filter-bar select { width: auto; padding: 8px 10px; font-size: 13px; }

.bulk-toolbar {
  display: flex; align-items: center; gap: 8px;
  margin: -12px 0 22px;
  padding: 10px 14px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 0 0 12px 12px;
  border-top: none;
}

.checkbox-row { display: flex; align-items: center; gap: 8px; }
.checkbox-row input[type=checkbox] { width: auto; margin: 0; }

details.add-panel {
  margin-bottom: 22px;
}
details.add-panel summary {
  list-style: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-input);
  color: var(--accent-strong);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 600;
  user-select: none;
}
details.add-panel summary::-webkit-details-marker { display: none; }
details.add-panel summary:hover { background: var(--border-soft); }
details.add-panel[open] summary { border-radius: 8px 8px 0 0; margin-bottom: -1px; }
details.add-panel[open] summary::after { content: ""; }
details.add-panel form { border-radius: 0 12px 12px 12px; margin-top: 0; }

input[type=text], input[type=password], input[type=email], input[type=file], select {
  background: var(--bg-input); color: var(--text); border: 1px solid var(--border);
  border-radius: 8px; padding: 9px 12px; font-size: 13.5px; width: 100%;
}
input:focus, select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent); }
label { display: block; font-size: 12px; color: var(--text-muted); margin: 12px 0 5px; font-weight: 500; }
label:first-of-type { margin-top: 0; }

/* ---------- Login page ---------- */
.public-container { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px; position: relative; }
.login-page { width: 100%; max-width: 380px; position: relative; }
.login-box {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 16px;
  padding: 36px 32px; box-shadow: var(--shadow); text-align: center;
}
.login-brand { display: flex; justify-content: center; margin-bottom: 14px; }
.login-box .brand-mark { width: 44px; height: 44px; font-size: 19px; border-radius: 12px; }
.login-box h1 { margin: 0 0 2px; font-size: 20px; }
.login-box h1 em { font-style: normal; color: var(--text-muted); font-weight: 500; }
.login-sub { color: var(--text-muted); font-size: 12.5px; margin: 0 0 20px; }
.login-box form { text-align: left; }
.login-box button[type=submit] { width: 100%; padding: 10px; margin-top: 16px; font-size: 14px; }

.alert { padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; font-size: 13px; text-align: left; }
.alert.error { background: var(--danger-bg); color: var(--bad); border: 1px solid var(--danger-border); }
.alert.success { background: color-mix(in srgb, var(--ok) 16%, transparent); color: var(--ok); border: 1px solid color-mix(in srgb, var(--ok) 40%, transparent); }

.log-box { background: var(--bg-card); border: 1px solid var(--border); padding: 18px; border-radius: 12px; white-space: pre-wrap; font-size: 12px; max-height: 70vh; overflow: auto; box-shadow: var(--shadow); }
code { font-size: 12px; color: var(--accent-strong); word-break: break-word; white-space: pre-wrap; }

/* ---------- Mobile ---------- */
@media (max-width: 880px) {
  .app-shell { position: relative; }
  .sidebar-backdrop {
    display: none;
    position: fixed; inset: 0;
    background: rgba(0,0,0,.45);
    z-index: 39;
  }
  .app-shell.sidebar-open .sidebar-backdrop { display: block; }
  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    height: 100vh;
    transform: translateX(-100%);
    transition: transform .2s ease;
    width: 250px;
  }
  .app-shell.sidebar-open .sidebar { transform: translateX(0); }
  .topbar { display: flex; }
  .container { padding: 18px 16px 32px; }
  .grid-2 { grid-template-columns: 1fr; }
  table.grid th, table.grid td { padding: 9px 12px; font-size: 12.5px; }
  h1 { font-size: 18px; margin-top: 22px; }
  form:not(.inline-form) { padding: 16px; }
  .login-box { padding: 28px 22px; }
}

@media (max-width: 420px) {
  .brand-name { font-size: 14px; }
  .nav a span { font-size: 13px; }
}