:root {
    --bg: #0b1220;
    --card: #0f172a;
    --border: #1e293b;
    --primary: #a855f7;
    --primary-dark: #7c3aed;
    --text: #e5e7eb;
    --muted: #94a3b8;
    --danger: #f87171;
    --success: #34d399;
    --accent: #38bdf8;
}

* {
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    margin: 0;
}

a {
    color: inherit;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: var(--primary);
    color: #0b1220;
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.brand-area {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.brand {
    font-size: 20px;
    font-weight: 800;
}

.main-nav {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}

.main-nav a {
    color: #0b1220;
    text-decoration: none;
    font-weight: bold;
    padding: 10px 12px;
    border-radius: 10px;
    transition: background 0.2s ease, color 0.2s ease;
}

.main-nav a:hover,
.main-nav a:focus-visible {
    background: rgba(0, 0, 0, 0.08);
    outline: none;
}

.logout-form {
    margin: 0;
}

.page-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px 20px 36px;
}

.adminsite-subnav {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 12px 20px;
    background: #0f172a;
    border-bottom: 1px solid var(--border);
}

.adminsite-subnav a {
    text-decoration: none;
    color: var(--text);
    padding: 8px 12px;
    border-radius: 10px;
    border: 1px solid transparent;
    background: #111827;
    font-weight: 600;
    transition: border-color 0.2s ease, background 0.2s ease;
}

.adminsite-subnav a:hover,
.adminsite-subnav a:focus-visible {
    border-color: var(--primary);
    outline: none;
}

.adminsite-subnav .subnav-secondary {
    background: transparent;
    border-color: var(--border);
    color: var(--muted);
}

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 18px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
}

.grid {
    display: grid;
    gap: 16px;
}

.grid.two-columns {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

h1 {
    margin: 0 0 12px;
}

h2 {
    margin: 0 0 10px;
}

p {
    margin: 0 0 14px;
}

.muted {
    color: var(--muted);
}

.table-wrapper {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
}

th,
td {
    padding: 12px;
    border-bottom: 1px solid var(--border);
    text-align: left;
}

th {
    background: #111827;
    color: var(--muted);
    font-weight: 700;
}

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

.btn-primary,
.btn-secondary,
.btn-ghost {
    border: none;
    border-radius: 10px;
    cursor: pointer;
    padding: 10px 14px;
    font-weight: bold;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-primary {
    background: var(--primary);
    color: #0b1220;
}

.btn-primary:hover,
.btn-primary:focus-visible {
    background: var(--primary-dark);
}

.btn-secondary {
    background: #e5e7eb;
    color: #0b1220;
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
    background: #cbd5e1;
}

.btn-ghost {
    background: transparent;
    color: var(--text);
}

.btn-danger {
    background: var(--danger);
    color: #0b1220;
}

.tag {
    display: inline-block;
    padding: 6px 10px;
    border-radius: 999px;
    background: #1f2937;
    color: var(--muted);
    font-size: 13px;
    border: 1px solid var(--border);
}

.pill {
    padding: 6px 10px;
    border-radius: 999px;
    background: #1f2937;
    color: var(--text);
    border: 1px solid var(--border);
    font-weight: 600;
}

input,
select,
textarea {
    width: 100%;
    padding: 10px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: #0b1220;
    color: var(--text);
    margin-top: 6px;
}

label {
    display: block;
    margin-top: 10px;
    font-size: 14px;
    color: var(--muted);
}

.form-row {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.form-row > * {
    flex: 1 1 200px;
}

section + section {
    margin-top: 16px;
}

.hero {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
    align-items: stretch;
}

.hero .card {
    height: 100%;
}

.divider {
    height: 1px;
    background: var(--border);
    margin: 18px 0;
}

.badge-list {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.action-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}

.tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.tab {
    padding: 10px 14px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--card);
    color: var(--text);
    cursor: pointer;
    transition: all 0.2s ease;
}

.tab.active {
    background: var(--primary);
    color: #0b1220;
    border-color: var(--primary);
}

.panel {
    display: none;
}

.panel.active {
    display: block;
}

.table-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.search-input {
    min-width: 220px;
}

.notice {
    padding: 12px 14px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: #0f172a;
    color: var(--muted);
}

.status {
    margin-top: 8px;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: #111827;
}

.page-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
}

.auth-page .site-header {
    position: static;
}

.auth-page .page-container {
    min-height: calc(100vh - 120px);
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: 520px;
}

.auth-card {
    width: 100%;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 24px;
    box-shadow: 0 16px 38px rgba(0, 0, 0, 0.35);
}

.auth-title {
    margin-top: 0;
    margin-bottom: 12px;
}

.auth-hint {
    margin-top: 10px;
    font-size: 13px;
    color: var(--muted);
    text-align: center;
}

@media (max-width: 768px) {
    .page-container {
        padding: 20px 16px 28px;
    }

    .table-top {
        flex-direction: column;
        align-items: stretch;
    }

    .main-nav {
        width: 100%;
    }

    .logout-form {
        width: 100%;
    }

    .logout-form button {
        width: 100%;
    }
}