:root {
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --bg-color: #f9fafb;
    --text-color: #111827;
    --text-muted: #6b7280;
    --card-bg: #ffffff;
    --border-color: #e5e7eb;
    --success-color: #10b981;
    --error-color: #ef4444;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.5;
}

a {
    color: var(--primary-color);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Container */
.container {
    max-width: 1024px;
    margin: 0 auto;
    padding: 0 1rem;
}

.main-content {
    padding: 2rem 1rem;
}

/* Navbar */
.navbar {
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-weight: 600;
    font-size: 1.25rem;
    color: var(--primary-color);
}

/* Typography */
h1, h2, h3 {
    margin-bottom: 1rem;
    font-weight: 600;
}

/* Buttons */
.btn {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    border: none;
    font-weight: 500;
    cursor: pointer;
    text-align: center;
    transition: background-color 0.2s;
}

.btn:hover {
    background-color: var(--primary-hover);
    text-decoration: none;
}

.btn-sm {
    padding: 0.25rem 0.75rem;
    font-size: 0.875rem;
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-color);
}

.btn-outline:hover {
    background-color: var(--bg-color);
    color: var(--text-color);
}

/* Forms & Login */
.login-container {
    max-width: 400px;
    margin: 4rem auto;
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.login-container h1 {
    text-align: center;
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    outline: none;
}

.form-group input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.login-container .btn {
    width: 100%;
    margin-top: 1rem;
}

/* Alerts */
.alert {
    padding: 0.75rem;
    border-radius: 0.375rem;
    margin-bottom: 1rem;
    font-size: 0.875rem;
}

.alert.error {
    background-color: #fef2f2;
    color: var(--error-color);
    border: 1px solid #f87171;
}

.alert.success {
    background-color: #ecfdf5;
    color: var(--success-color);
    border: 1px solid #34d399;
}

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

.back-link {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Tables */
.table-responsive {
    overflow-x: auto;
    background: var(--card-bg);
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
}

.table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.table th, .table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.table th {
    background-color: #f9fafb;
    font-weight: 500;
    color: var(--text-muted);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.table tr:last-child td {
    border-bottom: none;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    background-color: #e0e7ff;
    color: var(--primary-color);
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
}

.empty-state {
    text-align: center;
    padding: 3rem;
    background: var(--card-bg);
    border-radius: 0.5rem;
    color: var(--text-muted);
}

/* Cards & Details */
.card {
    background: var(--card-bg);
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    margin-bottom: 1.5rem;
}

.card-body {
    padding: 1.5rem;
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.detail-item {
    display: flex;
    flex-direction: column;
}

.detail-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.detail-value {
    font-weight: 500;
    word-break: break-all;
}

.json-payload {
    background-color: #1f2937;
    color: #e5e7eb;
    padding: 1rem;
    border-radius: 0.375rem;
    overflow-x: auto;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 0.875rem;
}