:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --bg: #0f0f13;
  --bg2: #1a1a24;
  --bg3: #22222f;
  --border: #2e2e3e;
  --text: #e2e2f0;
  --text2: #9898b0;
  --card: #1e1e2a;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; min-height: 100vh; }

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

/* Layout */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
@media(max-width:768px) { .grid-2,.grid-3,.grid-4 { grid-template-columns: 1fr; } }

/* Cards */
.card { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 24px; }
.card-sm { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 16px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 10px 20px; border-radius: 10px; border: none; cursor: pointer; font-size: 14px; font-weight: 600; transition: all 0.2s; }
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-success { background: var(--success); color: white; }
.btn-danger { background: var(--danger); color: white; }
.btn-ghost { background: transparent; color: var(--text2); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--bg3); color: var(--text); }
.btn-sm { padding: 6px 14px; font-size: 12px; border-radius: 8px; }
.btn-lg { padding: 14px 28px; font-size: 16px; border-radius: 12px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-full { width: 100%; justify-content: center; }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 13px; font-weight: 600; color: var(--text2); margin-bottom: 6px; }
.form-input, .form-select, .form-textarea {
  width: 100%; background: var(--bg3); border: 1px solid var(--border); border-radius: 10px;
  padding: 10px 14px; color: var(--text); font-size: 14px; transition: border 0.2s;
}
.form-input:focus, .form-select:focus, .form-textarea:focus { outline: none; border-color: var(--primary); }
.form-textarea { resize: vertical; min-height: 100px; }
.form-hint { font-size: 12px; color: var(--text2); margin-top: 4px; }

/* Badges */
.badge { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; }
.badge-success { background: rgba(16,185,129,0.15); color: var(--success); }
.badge-danger { background: rgba(239,68,68,0.15); color: var(--danger); }
.badge-warning { background: rgba(245,158,11,0.15); color: var(--warning); }
.badge-primary { background: rgba(99,102,241,0.15); color: var(--primary); }
.badge-gray { background: rgba(152,152,176,0.15); color: var(--text2); }

/* Table */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { background: var(--bg3); color: var(--text2); font-weight: 600; padding: 12px 16px; text-align: left; font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; }
td { padding: 14px 16px; border-bottom: 1px solid var(--border); vertical-align: middle; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(255,255,255,0.02); }

/* Nav */
.nav { background: var(--bg2); border-bottom: 1px solid var(--border); padding: 0 24px; height: 64px; display: flex; align-items: center; justify-content: space-between; position: sticky; top: 0; z-index: 100; backdrop-filter: blur(10px); }
.nav-logo { font-size: 20px; font-weight: 800; background: linear-gradient(135deg, var(--primary), #a78bfa); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.nav-links { display: flex; gap: 8px; align-items: center; }

/* Sidebar layout */
.layout { display: flex; min-height: 100vh; }
.sidebar { width: 260px; background: var(--bg2); border-right: 1px solid var(--border); padding: 20px 0; position: fixed; height: 100vh; overflow-y: auto; z-index: 50; }
.sidebar-logo { padding: 0 20px 20px; font-size: 18px; font-weight: 800; background: linear-gradient(135deg, var(--primary), #a78bfa); -webkit-background-clip: text; -webkit-text-fill-color: transparent; border-bottom: 1px solid var(--border); margin-bottom: 16px; }
.sidebar-section { padding: 8px 12px; font-size: 11px; font-weight: 700; color: var(--text2); text-transform: uppercase; letter-spacing: 1px; margin-top: 12px; }
.sidebar-item { display: flex; align-items: center; gap: 10px; padding: 10px 20px; color: var(--text2); font-size: 14px; font-weight: 500; cursor: pointer; transition: all 0.2s; border-radius: 0; }
.sidebar-item:hover, .sidebar-item.active { background: rgba(99,102,241,0.1); color: var(--primary); }
.sidebar-item.active { border-right: 3px solid var(--primary); }
.sidebar-item svg { width: 18px; height: 18px; flex-shrink: 0; }
.main-content { margin-left: 260px; flex: 1; padding: 32px; min-height: 100vh; }

/* Stats cards */
.stat-card { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 20px; }
.stat-label { font-size: 12px; color: var(--text2); font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }
.stat-value { font-size: 28px; font-weight: 800; margin: 8px 0 4px; }
.stat-sub { font-size: 12px; color: var(--text2); }

/* Alert */
.alert { padding: 12px 16px; border-radius: 10px; font-size: 14px; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
.alert-success { background: rgba(16,185,129,0.1); border: 1px solid rgba(16,185,129,0.3); color: var(--success); }
.alert-danger { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.3); color: var(--danger); }
.alert-warning { background: rgba(245,158,11,0.1); border: 1px solid rgba(245,158,11,0.3); color: var(--warning); }
.alert-info { background: rgba(99,102,241,0.1); border: 1px solid rgba(99,102,241,0.3); color: var(--primary); }

/* Modal */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.7); z-index: 1000; display: flex; align-items: center; justify-content: center; backdrop-filter: blur(4px); }
.modal { background: var(--card); border: 1px solid var(--border); border-radius: 20px; padding: 32px; width: 100%; max-width: 480px; max-height: 90vh; overflow-y: auto; }
.modal-title { font-size: 18px; font-weight: 700; margin-bottom: 20px; }
.modal-actions { display: flex; gap: 12px; margin-top: 24px; justify-content: flex-end; }

/* Page header */
.page-header { margin-bottom: 28px; }
.page-title { font-size: 24px; font-weight: 800; }
.page-sub { color: var(--text2); font-size: 14px; margin-top: 4px; }

/* Loading */
.loading { display: flex; align-items: center; justify-content: center; padding: 60px; color: var(--text2); }
.spinner { width: 32px; height: 32px; border: 3px solid var(--border); border-top-color: var(--primary); border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Toast */
#toast-container { position: fixed; bottom: 24px; right: 24px; z-index: 9999; display: flex; flex-direction: column; gap: 10px; }
.toast { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 14px 20px; font-size: 14px; min-width: 260px; box-shadow: 0 8px 32px rgba(0,0,0,0.4); animation: slideIn 0.3s ease; display: flex; align-items: center; gap: 10px; }
.toast-success { border-left: 4px solid var(--success); }
.toast-error { border-left: 4px solid var(--danger); }
.toast-info { border-left: 4px solid var(--primary); }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* Empty state */
.empty { text-align: center; padding: 60px 20px; color: var(--text2); }
.empty-icon { font-size: 48px; margin-bottom: 16px; opacity: 0.5; }
.empty-text { font-size: 16px; font-weight: 600; margin-bottom: 8px; color: var(--text); }

/* Tabs */
.tabs { display: flex; gap: 4px; background: var(--bg3); padding: 4px; border-radius: 12px; width: fit-content; margin-bottom: 24px; }
.tab { padding: 8px 18px; border-radius: 8px; cursor: pointer; font-size: 14px; font-weight: 500; color: var(--text2); transition: all 0.2s; }
.tab.active { background: var(--primary); color: white; }

/* Product card (store) */
.product-card { background: var(--card); border: 1px solid var(--border); border-radius: 16px; overflow: hidden; cursor: pointer; transition: transform 0.2s, box-shadow 0.2s; }
.product-card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(99,102,241,0.2); }
.product-card-body { padding: 16px; }
.product-card-thumb { width: 100%; height: 180px; object-fit: cover; background: var(--bg3); display: flex; align-items: center; justify-content: center; font-size: 48px; color: var(--text2); }
.product-price { font-size: 20px; font-weight: 800; color: var(--primary); }
.product-name { font-size: 15px; font-weight: 600; margin-bottom: 6px; }
.product-meta { font-size: 12px; color: var(--text2); }

/* Hero section */
.hero { background: linear-gradient(135deg, rgba(99,102,241,0.1) 0%, rgba(167,139,250,0.05) 100%); border-bottom: 1px solid var(--border); padding: 80px 24px; text-align: center; }
.hero h1 { font-size: 48px; font-weight: 900; line-height: 1.2; margin-bottom: 20px; }
.hero h1 span { background: linear-gradient(135deg, var(--primary), #a78bfa); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero p { font-size: 18px; color: var(--text2); max-width: 600px; margin: 0 auto 32px; }
@media(max-width:768px) { .hero h1 { font-size: 32px; } }

/* Divider */
.divider { height: 1px; background: var(--border); margin: 20px 0; }

/* Chip */
.chip { display: inline-flex; align-items: center; gap: 4px; padding: 4px 12px; border-radius: 20px; font-size: 12px; background: var(--bg3); border: 1px solid var(--border); color: var(--text2); cursor: pointer; transition: all 0.2s; }
.chip.active, .chip:hover { background: rgba(99,102,241,0.15); border-color: var(--primary); color: var(--primary); }

/* Pricing cards */
.pricing-card { background: var(--card); border: 2px solid var(--border); border-radius: 20px; padding: 28px; text-align: center; position: relative; transition: all 0.3s; cursor: pointer; }
.pricing-card:hover, .pricing-card.selected { border-color: var(--primary); background: rgba(99,102,241,0.05); }
.pricing-card .popular { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--primary); color: white; font-size: 11px; font-weight: 700; padding: 4px 14px; border-radius: 20px; text-transform: uppercase; letter-spacing: 0.5px; }
.pricing-price { font-size: 36px; font-weight: 900; margin: 16px 0 4px; }
.pricing-period { font-size: 14px; color: var(--text2); }

/* Section */
.section { padding: 80px 0; }
.section-title { font-size: 32px; font-weight: 800; text-align: center; margin-bottom: 48px; }

/* Feature list */
.feature-item { display: flex; align-items: flex-start; gap: 12px; padding: 12px 0; }
.feature-icon { width: 36px; height: 36px; border-radius: 10px; background: rgba(99,102,241,0.15); display: flex; align-items: center; justify-content: center; flex-shrink: 0; color: var(--primary); font-size: 18px; }

/* Order status */
.order-status-line { display: flex; align-items: center; margin-bottom: 32px; }
.status-step { display: flex; flex-direction: column; align-items: center; flex: 1; }
.status-dot { width: 32px; height: 32px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 700; }
.status-dot.done { background: var(--success); color: white; }
.status-dot.active { background: var(--primary); color: white; }
.status-dot.inactive { background: var(--bg3); color: var(--text2); border: 2px solid var(--border); }
.status-line { flex: 1; height: 2px; background: var(--border); }
.status-line.done { background: var(--success); }
.status-label { font-size: 11px; color: var(--text2); margin-top: 8px; text-align: center; }

/* Footer */
@media(max-width:640px) {
  .footer-grid { grid-template-columns: 1fr !important; gap: 24px !important; }
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text2); }