*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root { --bg: #0f0f0f; --card: #1a1a1a; --border: #2a2a2a; --text: #e0e0e0; --muted: #888; --accent: #6366f1; --accent-hover: #4f46e5; --green: #22c55e; --red: #ef4444; --radius: 8px; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; min-height: 100vh; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }
.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

/* Header */
header { border-bottom: 1px solid var(--border); padding: 16px 0; background: var(--card); }
header .container { display: flex; align-items: center; justify-content: space-between; }
header h1 { font-size: 20px; font-weight: 700; }
header h1 a { color: var(--text); }
nav { display: flex; gap: 20px; align-items: center; }
nav a { font-size: 14px; color: var(--muted); }
nav a:hover { color: var(--text); }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 10px 20px; border: none; border-radius: var(--radius); font-size: 14px; font-weight: 500; cursor: pointer; transition: all .2s; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); color: #fff !important; }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-sm { padding: 6px 14px; font-size: 13px; }
.btn-block { width: 100%; justify-content: center; }
.btn-danger { background: var(--red); color: #fff; }
.btn-green { background: var(--green); color: #fff; }

/* Cards */
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.card h3 { font-size: 16px; margin-bottom: 8px; }
.card .meta { font-size: 13px; color: var(--muted); margin-bottom: 12px; }
.card .price { font-size: 20px; font-weight: 700; color: var(--accent); }
.card .actions { margin-top: 12px; display: flex; gap: 8px; flex-wrap: wrap; }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 14px; color: var(--muted); margin-bottom: 6px; }
.form-group input, .form-group textarea, .form-group select { width: 100%; padding: 10px 12px; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text); font-size: 14px; }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--accent); }
.form-group textarea { min-height: 100px; resize: vertical; }

/* Grid */
.row { display: flex; gap: 24px; flex-wrap: wrap; }
.col-6 { flex: 1; min-width: 300px; }
@media (max-width:768px) { .col-side { width: 100% !important; } }

/* Tables */
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 500; font-size: 13px; }
tr:hover td { background: rgba(255,255,255,.02); }

/* Tags */
.tag { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 12px; }
.tag-green { background: rgba(34,197,94,.15); color: var(--green); }
.tag-red { background: rgba(239,68,68,.15); color: var(--red); }
.tag-blue { background: rgba(99,102,241,.15); color: var(--accent); }

/* Pages */
.page-title { font-size: 24px; font-weight: 700; margin-bottom: 24px; padding-top: 32px; }
.empty { text-align: center; padding: 60px 20px; color: var(--muted); }
.empty p { margin-top: 8px; }

/* Alerts */
.alert { padding: 12px 16px; border-radius: var(--radius); font-size: 14px; margin-bottom: 16px; }
.alert-error { background: rgba(239,68,68,.1); border: 1px solid rgba(239,68,68,.3); color: var(--red); }
.alert-success { background: rgba(34,197,94,.1); border: 1px solid rgba(34,197,94,.3); color: var(--green); }

/* Modal */
.modal { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.6); z-index: 100; align-items: center; justify-content: center; }
.modal.show { display: flex; }
.modal-content { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; width: 90%; max-width: 500px; max-height: 80vh; overflow-y: auto; }
.modal-content h2 { margin-bottom: 16px; }

/* Pagination */
.pagination { display: flex; gap: 8px; justify-content: center; padding: 24px 0; }
.pagination a, .pagination span { padding: 8px 14px; border: 1px solid var(--border); border-radius: var(--radius); font-size: 14px; color: var(--text); }
.pagination a:hover { border-color: var(--accent); }

/* Utility */
.text-center { text-align: center; }
.text-muted { color: var(--muted); }
.mt-4 { margin-top: 16px; }
.mb-4 { margin-bottom: 16px; }
.flex { display: flex; gap: 12px; flex-wrap: wrap; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-2 { gap: 8px; }