*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --border: #2a2d3e;
  --accent: #6c63ff;
  --accent-hover: #574fd6;
  --danger: #e05c5c;
  --danger-hover: #c44040;
  --success: #4caf7d;
  --text: #e2e4f0;
  --text-muted: #7a7f9a;
  --radius: 8px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  width: 100%;
  max-width: 420px;
}

.card h1 {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.card .subtitle {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
}

.dashboard-card {
  max-width: 560px;
}

label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.4rem;
}

input[type="email"],
input[type="password"],
input[type="text"] {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.95rem;
  padding: 0.6rem 0.75rem;
  outline: none;
  transition: border-color 0.15s;
  margin-bottom: 1rem;
}

input:focus { border-color: var(--accent); }

button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.6rem 1.2rem;
  transition: background 0.15s, opacity 0.15s;
}

button:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary { background: var(--accent); color: #fff; width: 100%; padding: 0.7rem; }
.btn-primary:hover:not(:disabled) { background: var(--accent-hover); }

.btn-success { background: var(--success); color: #fff; }
.btn-success:hover:not(:disabled) { filter: brightness(0.9); }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover:not(:disabled) { background: var(--danger-hover); }

.btn-secondary { background: var(--border); color: var(--text); }
.btn-secondary:hover:not(:disabled) { filter: brightness(1.2); }

.btn-sm { padding: 0.45rem 0.9rem; font-size: 0.85rem; }

.error-msg {
  background: rgba(224, 92, 92, 0.1);
  border: 1px solid var(--danger);
  border-radius: var(--radius);
  color: var(--danger);
  font-size: 0.85rem;
  padding: 0.6rem 0.8rem;
  margin-bottom: 1rem;
  display: none;
}

.error-msg.visible { display: block; }

.success-msg {
  background: rgba(76, 175, 125, 0.1);
  border: 1px solid var(--success);
  border-radius: var(--radius);
  color: var(--success);
  font-size: 0.85rem;
  padding: 0.6rem 0.8rem;
  margin-bottom: 1rem;
  display: none;
}

.success-msg.visible { display: block; }

.section {
  border-top: 1px solid var(--border);
  padding-top: 1.25rem;
  margin-top: 1.25rem;
}

.section h2 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.4rem;
}

.section-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.password-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.ip-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.ip-display {
  font-family: "SF Mono", "Fira Code", monospace;
  font-size: 0.95rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.4rem 0.75rem;
  flex: 1;
  min-width: 0;
}

.badge {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-registered { background: rgba(76, 175, 125, 0.15); color: var(--success); }
.badge-unregistered { background: rgba(122, 127, 154, 0.15); color: var(--text-muted); }

.actions-row {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.75rem;
  flex-wrap: wrap;
}

.invite-row {
  display: flex;
  gap: 0.5rem;
}

.invite-row input { margin-bottom: 0; flex: 1; }

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.header-row .user-info {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.hidden { display: none !important; }

/* ── Authenticated layout ──────────────────────────────────────────────────── */

body.authenticated {
  display: block;
  align-items: unset;
  justify-content: unset;
  padding: 0;
}

/* ── Nav bar ────────────────────────────────────────────────────────────────── */

#main-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 56px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 1.5rem;
  gap: 1.5rem;
  z-index: 100;
}

.nav-brand {
  font-weight: 700;
  font-size: 1rem;
  color: var(--accent);
  white-space: nowrap;
}

.nav-links {
  display: flex;
  gap: 0.25rem;
  flex: 1;
}

.nav-link {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius);
  cursor: pointer;
  transition: color 0.15s, background 0.15s;
}

.nav-link:hover { color: var(--text); background: var(--border); }
.nav-link.active { color: var(--text); background: var(--border); }

.nav-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  white-space: nowrap;
}

.nav-email {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ── Page layout ────────────────────────────────────────────────────────────── */

.page-content {
  max-width: 1100px;
  margin: 0 auto;
  margin-top: 56px;
  padding: 2rem 1.5rem;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.page-header h1 {
  font-size: 1.4rem;
  font-weight: 600;
}

/* ── Workstations / Users table ─────────────────────────────────────────────── */

.ws-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.ws-table th,
.ws-table td {
  text-align: left;
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--border);
}

.ws-table th {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.ws-table tbody tr:hover { background: rgba(255,255,255,0.02); }

.actions-cell {
  white-space: nowrap;
}

.actions-cell button + button { margin-left: 0.3rem; }

.mono {
  font-family: "SF Mono", "Fira Code", monospace;
  font-size: 0.8rem;
}

/* ── State badge variants ───────────────────────────────────────────────────── */

.badge-running   { background: rgba(76, 175, 125, 0.15); color: var(--success); }
.badge-stopped   { background: rgba(122, 127, 154, 0.15); color: var(--text-muted); }
.badge-pending   { background: rgba(255, 193, 7, 0.15); color: #ffc107; }
.badge-stopping  { background: rgba(224, 92, 92, 0.15); color: var(--danger); }

/* ── Create workstation inline form ─────────────────────────────────────────── */

.create-form {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
}

.create-form input {
  margin-bottom: 0;
  flex: 1;
  min-width: 160px;
}

.create-form .error-msg {
  width: 100%;
  margin-bottom: 0;
}