* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Segoe UI', system-ui, sans-serif; background: #F3F4F6; color: #1F2937; }
.hidden { display: none !important; }
.error { color: #DC2626; font-size: 13px; margin-top: 8px; }

/* Login */
.login-container { display: flex; justify-content: center; align-items: center; min-height: 100vh; background: linear-gradient(135deg, #F0F9FF, #DBEAFE); }
.login-card { background: white; border-radius: 16px; padding: 48px 40px; width: 380px; box-shadow: 0 8px 30px rgba(0,0,0,0.08); }
.login-header { text-align: center; margin-bottom: 32px; }
.login-header h1 { font-size: 32px; color: #0077B6; letter-spacing: 2px; }
.login-header p { color: #9CA3AF; font-size: 14px; margin-top: 4px; }
#login-form input { width: 100%; padding: 12px 16px; border: 1px solid #D1D5DB; border-radius: 8px; font-size: 14px; margin-bottom: 14px; outline: none; transition: border 0.2s; }
#login-form input:focus { border-color: #00A3E0; }
#login-form button { width: 100%; padding: 12px; background: linear-gradient(135deg, #00A3E0, #0077B6); color: white; border: none; border-radius: 8px; font-size: 15px; font-weight: 600; cursor: pointer; transition: opacity 0.2s; }
#login-form button:hover { opacity: 0.9; }

/* Topbar */
.topbar { background: white; padding: 12px 24px; display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid #E5E7EB; position: sticky; top: 0; z-index: 10; }
.topbar-left h2 { color: #0077B6; font-size: 20px; }
.topbar-left h2 span { color: #9CA3AF; font-weight: 400; font-size: 14px; }
.topbar-right { display: flex; gap: 12px; align-items: center; }
.search-box { padding: 8px 14px; border: 1px solid #D1D5DB; border-radius: 8px; font-size: 13px; width: 280px; outline: none; }
.search-box:focus { border-color: #00A3E0; }
.btn-small { padding: 8px 16px; border: 1px solid #D1D5DB; border-radius: 8px; background: white; font-size: 12px; cursor: pointer; color: #4B5563; transition: all 0.2s; }
.btn-small:hover { background: #F3F4F6; }

/* Cards */
.cards-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; padding: 20px 24px; }
.card { background: white; border-radius: 12px; padding: 20px; border: 1px solid #E5E7EB; }
.card-label { font-size: 12px; font-weight: 600; color: #6B7280; text-transform: uppercase; letter-spacing: 0.5px; }
.card-value { font-size: 36px; font-weight: 700; margin-top: 4px; }
.card-sub { font-size: 14px; color: #6B7280; margin-top: 2px; }
.card-blue .card-value { color: #0077B6; }
.card-green .card-value { color: #16A34A; }
.card-orange .card-value { color: #D97706; }
.card-purple .card-value { color: #7C3AED; }

/* Charts */
.charts-row { display: grid; grid-template-columns: 2fr 1fr; gap: 16px; padding: 0 24px 16px; }
.chart-card { background: white; border-radius: 12px; padding: 20px; border: 1px solid #E5E7EB; }
.chart-card h3 { font-size: 14px; color: #4B5563; margin-bottom: 12px; }
#versions-list .ver-row { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid #F3F4F6; font-size: 13px; }
#versions-list .ver-label { color: #4B5563; }
#versions-list .ver-count { font-weight: 600; color: #0077B6; }

/* Table */
.table-card { background: white; border-radius: 12px; margin: 0 24px 24px; border: 1px solid #E5E7EB; overflow: hidden; }
.table-card h3 { padding: 16px 20px; font-size: 14px; color: #4B5563; border-bottom: 1px solid #E5E7EB; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
thead { background: #F9FAFB; }
th { padding: 10px 14px; text-align: left; font-size: 11px; font-weight: 600; color: #6B7280; text-transform: uppercase; letter-spacing: 0.5px; border-bottom: 1px solid #E5E7EB; }
td { padding: 12px 14px; border-bottom: 1px solid #F3F4F6; }
tr:hover { background: #F0F9FF; cursor: pointer; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 11px; font-weight: 600; }
.badge-free { background: #DBEAFE; color: #1D4ED8; }
.badge-pro { background: #FEF3C7; color: #92400E; }

/* Pagination */
.pagination { padding: 12px 20px; display: flex; justify-content: center; align-items: center; gap: 16px; border-top: 1px solid #E5E7EB; }
#page-info { font-size: 13px; color: #6B7280; }

/* Modal */
.modal { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.4); display: flex; justify-content: center; align-items: center; z-index: 100; }
.modal-content { background: white; border-radius: 12px; width: 600px; max-height: 80vh; overflow-y: auto; }
.modal-header { display: flex; justify-content: space-between; align-items: center; padding: 16px 20px; border-bottom: 1px solid #E5E7EB; }
.modal-header h3 { font-size: 16px; color: #1F2937; }
.btn-close { background: none; border: none; font-size: 18px; cursor: pointer; color: #9CA3AF; font-weight: bold; }
.btn-close:hover { color: #DC2626; }
#detail-body { padding: 20px; }
.detail-row { display: flex; padding: 8px 0; border-bottom: 1px solid #F3F4F6; }
.detail-label { width: 160px; font-size: 12px; font-weight: 600; color: #6B7280; }
.detail-value { font-size: 13px; color: #1F2937; }

@media (max-width: 900px) {
    .cards-grid { grid-template-columns: repeat(2, 1fr); }
    .charts-row { grid-template-columns: 1fr; }
    .search-box { width: 160px; }
}