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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #f0f2f5;
    color: #1a1a2e;
}

/* Nav */
nav {
    background: #1a1a2e;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    height: 56px;
    gap: 2rem;
}
.nav-brand { color: #fff; font-weight: 700; font-size: 1.1rem; }
.nav-links { display: flex; gap: 1rem; flex: 1; }
.nav-links a { color: #a0a0b0; text-decoration: none; padding: 0.5rem 1rem; border-radius: 6px; }
.nav-links a:hover, .nav-links a.active { color: #fff; background: #2a2a4e; }
.nav-user { color: #a0a0b0; font-size: 0.9rem; }
.nav-user a { color: #4472C4; text-decoration: none; }

/* Main */
main { max-width: 1200px; margin: 2rem auto; padding: 0 1rem; }
h1 { margin-bottom: 1.5rem; }
h2 { margin: 2rem 0 1rem; }

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}
.stat-card {
    background: #fff;
    border-radius: 10px;
    padding: 1.5rem;
    text-align: center;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
.stat-value { font-size: 2rem; font-weight: 700; color: #4472C4; }
.stat-label { color: #666; font-size: 0.85rem; margin-top: 0.3rem; }

/* Tables */
table { width: 100%; border-collapse: collapse; background: #fff; border-radius: 10px; overflow: hidden; box-shadow: 0 1px 3px rgba(0,0,0,0.08); }
th { background: #1a1a2e; color: #fff; text-align: left; padding: 0.8rem 1rem; font-size: 0.85rem; }
td { padding: 0.7rem 1rem; border-bottom: 1px solid #eee; font-size: 0.9rem; }
tr:hover { background: #f8f9fa; }
tr.inactive { opacity: 0.5; }
td a { color: #4472C4; text-decoration: none; }
td a:hover { text-decoration: underline; }

/* Badges */
.badge { padding: 0.2rem 0.6rem; border-radius: 12px; font-size: 0.75rem; font-weight: 600; }
.badge.green { background: #d4edda; color: #155724; }
.badge.red { background: #f8d7da; color: #721c24; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.6rem 1.2rem;
    background: #4472C4;
    color: #fff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    text-decoration: none;
    font-size: 0.9rem;
}
.btn:hover { background: #3561b0; }
.btn-secondary { background: #6c757d; }
.btn-secondary:hover { background: #5a6268; }
.btn-small { padding: 0.3rem 0.6rem; font-size: 0.8rem; background: #4472C4; color: #fff; border: none; border-radius: 4px; cursor: pointer; }

/* Page header */
.page-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; }
.page-header h1 { margin: 0; }

/* Forms */
.form-card { background: #fff; padding: 2rem; border-radius: 10px; max-width: 600px; box-shadow: 0 1px 3px rgba(0,0,0,0.08); }
.form-card label { display: block; margin: 1rem 0 0.3rem; font-weight: 600; font-size: 0.9rem; }
.form-card input, .form-card textarea, .form-card select {
    width: 100%; padding: 0.6rem; border: 1px solid #ddd; border-radius: 6px; font-size: 0.9rem;
}
.form-card textarea { resize: vertical; }
.form-actions { margin-top: 1.5rem; display: flex; gap: 0.5rem; }
.checkbox-label { display: flex; align-items: center; gap: 0.5rem; margin-top: 1rem; }
.checkbox-label input { width: auto; }

/* Info grid */
.info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 2rem; }
.info-card { background: #fff; padding: 1.5rem; border-radius: 10px; box-shadow: 0 1px 3px rgba(0,0,0,0.08); }
.info-card h3 { margin-bottom: 1rem; }
.info-card p { margin: 0.3rem 0; font-size: 0.9rem; }
.inline-form { display: flex; gap: 0.5rem; margin-top: 1rem; align-items: center; }
.inline-form input { padding: 0.4rem; border: 1px solid #ddd; border-radius: 4px; font-size: 0.85rem; }

/* Charts */
.charts-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.chart-card { background: #fff; padding: 1.5rem; border-radius: 10px; box-shadow: 0 1px 3px rgba(0,0,0,0.08); }
.chart-card h3 { margin-bottom: 1rem; font-size: 0.95rem; }
.chart-card.full-width { grid-column: 1 / -1; }

/* Login */
.login-container {
    max-width: 360px; margin: 10vh auto; background: #fff; padding: 2.5rem;
    border-radius: 10px; text-align: center; box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
.login-container h1 { color: #4472C4; margin-bottom: 0.3rem; }
.login-container p { color: #666; margin-bottom: 1.5rem; }
.login-container input { width: 100%; padding: 0.7rem; margin-bottom: 0.8rem; border: 1px solid #ddd; border-radius: 6px; }
.login-container button { width: 100%; padding: 0.7rem; background: #4472C4; color: #fff; border: none; border-radius: 6px; cursor: pointer; font-size: 1rem; }
.login-container button:hover { background: #3561b0; }

/* Alerts */
.alert { padding: 0.8rem; border-radius: 6px; margin-bottom: 1rem; }
.alert.error { background: #f8d7da; color: #721c24; }

/* Config page */
.config-section { background: #fff; padding: 1.5rem; border-radius: 10px; box-shadow: 0 1px 3px rgba(0,0,0,0.08); }
.config-section h3 { margin-bottom: 1rem; color: #4472C4; }
.config-section label { display: block; margin: 0.8rem 0 0.3rem; font-weight: 600; font-size: 0.85rem; }
.config-section input, .config-section textarea { width: 100%; padding: 0.5rem; border: 1px solid #ddd; border-radius: 4px; font-size: 0.9rem; }
.config-section textarea { resize: vertical; font-family: inherit; }
.config-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.config-table { width: 100%; border-collapse: collapse; }
.config-table th { background: #f0f2f5; padding: 0.5rem; font-size: 0.85rem; text-align: left; }
.config-table td { padding: 0.3rem; }
.config-table input { width: 100%; padding: 0.4rem; border: 1px solid #ddd; border-radius: 4px; }

/* Prompt preview */
.prompt-block { margin-bottom: 1.5rem; }
.prompt-block pre {
    background: #1a1a2e;
    color: #e0e0e0;
    padding: 1.2rem;
    border-radius: 8px;
    font-size: 0.82rem;
    line-height: 1.6;
    overflow-x: auto;
    white-space: pre-wrap;
    word-wrap: break-word;
}
.prompt-label {
    font-weight: 700;
    font-size: 0.85rem;
    color: #4472C4;
    margin-bottom: 0.5rem;
    padding: 0.3rem 0.6rem;
    background: #e8eef7;
    border-radius: 4px;
    display: inline-block;
}

/* Responsive */
@media (max-width: 768px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .info-grid { grid-template-columns: 1fr; }
    .charts-grid { grid-template-columns: 1fr; }
    nav { padding: 0 1rem; gap: 1rem; }
    .nav-links { flex-wrap: wrap; }
}