:root {
    --primary-color: #ef5552;
    --primary-hover: #dc2626;
    --text-color: #1f2937;
    --bg-color: #ffffff;
    --header-bg: #ffffff;
    --nav-bg: #f8fafc;
    --text-secondary: #6b7280;
    --text-tertiary: #9ca3af;
    --bg-color: #ffffff;
    --header-bg: #ffffff;
    --nav-bg: #f8fafc;
    --border-color: #e5e7eb;
}
[data-theme="dark"] {
    --primary-color: #ef5552;
    --primary-hover: #dc2626;
    --text-color: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-tertiary: #6b7280;
    --bg-color: #111827;
    --header-bg: #1f2937;
    --nav-bg: #374151;
    --border-color: #4b5563;
}
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--text-color);
    background-color: var(--bg-color);
    transition: background-color 0.3s, color 0.3s;
}
.header {
    background-color: var(--header-bg);
    border-bottom: 1px solid #e5e7eb;
    position: sticky;
    top: 0;
    z-index: 50;
    transition: background-color 0.3s;
}
[data-theme="dark"] .header {
    border-bottom-color: #374151;
}
.logo {
    height: 32px;
    width: auto;
}
.nav-link {
    color: var(--text-color);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    transition: all 0.2s;
    font-weight: 500;
}
.nav-link:hover {
    background-color: var(--nav-bg);
    color: var(--primary-color);
}
.nav-link.active {
    color: var(--primary-color);
    background-color: var(--nav-bg);
}
.btn-primary {
    background-color: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    transition: all 0.2s;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
}
.text-primary {
    color: var(--primary-color);
}
.text-primary-hover:hover {
    color: var(--primary-hover);
}
.focus-ring-primary:focus {
    outline: none;
    ring-color: var(--primary-color);
}
.page-header {
    background-color: var(--nav-bg);
    border-bottom: 1px solid #e5e7eb;
    padding: 2rem 0;
    transition: background-color 0.3s;
}
[data-theme="dark"] .page-header {
    border-bottom-color: #374151;
}
.page-header h1 {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}
.page-header p {
    color: #6b7280;
    font-size: 1.125rem;
}
.card {
    background-color: var(--header-bg);
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    transition: all 0.2s;
}
.card:hover {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}
[data-theme="dark"] .card {
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.3), 0 1px 2px 0 rgba(0, 0, 0, 0.2);
}
[data-theme="dark"] .card:hover {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
}
[data-theme="dark"] input {
    background-color: var(--nav-bg);
    border-color: #4b5563;
    color: var(--text-color);
}
[data-theme="dark"] input::placeholder {
    color: #9ca3af;
}
[data-theme="dark"] .bg-gray-50 {
    background-color: #1f2937;
}
[data-theme="dark"] .border-gray-200 {
    border-color: #374151;
}
[data-theme="dark"] .text-gray-500 {
    color: #9ca3af;
}
.hover-row:hover {
    background-color: var(--nav-bg);
}
.relationship-badge {
    color: var(--text-color);
    border: 1px solid var(--border-color);
}