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

:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --surface2: #22263a;
  --border: #2e3350;
  --accent: #6c8ef5;
  --accent-hover: #8aa4f8;
  --text: #e2e4ef;
  --text-muted: #7880a0;
  --error: #ef4444;
  --success: #22c55e;
  --radius: 8px;
  --shadow: 0 2px 8px rgba(0,0,0,0.4);
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
}

body.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Nav */
nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  height: 56px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav-brand {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
}

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

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  transition: color 0.15s, background 0.15s;
}

.nav-links a:hover {
  color: var(--text);
  background: var(--surface2);
}

/* Connection banner */
.connection-banner {
  font-size: 0.78rem;
  font-weight: 600;
  text-align: center;
  padding: 0.3rem 1rem;
  letter-spacing: 0.03em;
}
.connection-pending { background: var(--surface2); color: var(--text-muted); }
.connection-ok      { background: rgba(34,197,94,0.12); color: var(--success); }
.connection-error   { background: rgba(239,68,68,0.1); color: #fca5a5; }

/* Main */
main {
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

/* Page header */
.page-header { margin-bottom: 1.5rem; }
.page-header h1 { font-size: 1.6rem; font-weight: 700; color: var(--text); }
.page-header p { color: var(--text-muted); margin-top: 0.25rem; }

/* Login */
.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.5rem;
  width: 100%;
  max-width: 380px;
  box-shadow: var(--shadow);
}

.login-card h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.25rem;
}

.login-subtitle { color: var(--text-muted); margin-bottom: 1.5rem; }

/* Forms */
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; margin-bottom: 0.4rem; font-size: 0.875rem; color: var(--text-muted); }
.form-group input,
.form-group textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.6rem 0.8rem;
  color: var(--text);
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color 0.15s;
  outline: none;
}
.form-group input:focus,
.form-group textarea:focus { border-color: var(--accent); }
.form-group textarea { resize: vertical; }

.search-bar { margin-bottom: 1rem; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: background 0.15s, transform 0.1s;
  text-decoration: none;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }

/* Alerts */
.alert {
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  font-size: 0.9rem;
}
.alert-error { background: rgba(239,68,68,0.15); border: 1px solid rgba(239,68,68,0.4); color: #fca5a5; }

/* Chat */
.chat-form { margin-bottom: 1.5rem; }

.answer-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}
.answer-box h2 { font-size: 1rem; color: var(--text-muted); margin-bottom: 0.75rem; }
.answer-content { white-space: pre-wrap; line-height: 1.7; }

/* Table */
.table-wrapper { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
thead tr { border-bottom: 2px solid var(--border); }
tbody tr { border-bottom: 1px solid var(--border); }
tbody tr:hover { background: var(--surface); }
th { text-align: left; padding: 0.6rem 0.75rem; color: var(--text-muted); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.05em; }
td { padding: 0.6rem 0.75rem; }
.text-right { text-align: right; }
.text-muted { color: var(--text-muted); }

/* Status */
.status-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}
.status-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}
.status-label { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 0.5rem; }
.status-value { font-size: 1.25rem; font-weight: 700; }
.status-ok .status-value { color: var(--success); }
.status-error .status-value { color: var(--error); }

/* Settings */
.settings-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}
.settings-section h2 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.75rem; }
.settings-desc { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 0.75rem; }
.settings-hints { list-style: disc; padding-left: 1.25rem; color: var(--text-muted); font-size: 0.875rem; margin-bottom: 1rem; }
.settings-hints li { margin-bottom: 0.4rem; }
code { background: var(--bg); border: 1px solid var(--border); border-radius: 4px; padding: 0.1em 0.4em; font-size: 0.85em; font-family: 'Menlo', 'Consolas', monospace; }
.token-status { font-size: 0.85rem; padding: 0.5rem 0.75rem; border-radius: var(--radius); margin-bottom: 1rem; border: 1px solid; }
.token-status.status-ok { color: var(--success); border-color: rgba(34,197,94,0.3); background: rgba(34,197,94,0.08); }
.token-status.status-error { color: #fca5a5; border-color: rgba(239,68,68,0.3); background: rgba(239,68,68,0.08); }
.token-form textarea { font-family: 'Menlo', 'Consolas', monospace; font-size: 0.8rem; word-break: break-all; }
.form-hint { font-size: 0.8rem; color: var(--text-muted); margin-top: 0.4rem; }
.badge { display: inline-block; padding: 0.2em 0.6em; border-radius: 4px; font-size: 0.8rem; font-weight: 600; }
.badge-ok { background: rgba(34,197,94,0.15); color: var(--success); }
.badge-warn { background: rgba(239,68,68,0.1); color: #fca5a5; }
.alert-success { background: rgba(34,197,94,0.12); border: 1px solid rgba(34,197,94,0.3); color: var(--success); }

/* Empty state */
.empty-state {
  text-align: center;
  padding: 3rem;
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}