:root{--bg: #0f1117;--surface: #1a1d27;--surface2: #232733;--border: #2e3340;--text: #e4e6eb;--text-dim: #8b8f9a;--primary: #4f8cff;--primary-hover: #3a78f0;--danger: #ff4757;--danger-hover: #e03e4e;--success: #2ed573;--warning: #ffa502;--radius: 8px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.5}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.app-layout{display:flex;min-height:100vh}.sidebar{width:220px;background:var(--surface);border-right:1px solid var(--border);padding:20px 0;flex-shrink:0}.sidebar-brand{padding:0 20px 20px;font-size:18px;font-weight:700;border-bottom:1px solid var(--border);margin-bottom:12px}.sidebar-nav a{display:block;padding:10px 20px;color:var(--text-dim);text-decoration:none;transition:all .15s}.sidebar-nav a:hover,.sidebar-nav a.active{background:var(--surface2);color:var(--text)}.sidebar-footer{margin-top:auto;padding:16px 20px;border-top:1px solid var(--border)}.main-content{flex:1;padding:32px;overflow-y:auto}.login-page{display:flex;align-items:center;justify-content:center;min-height:100vh}.login-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:40px;width:360px}.login-card h1{font-size:22px;margin-bottom:24px;text-align:center}.form-group{margin-bottom:16px}.form-group label{display:block;margin-bottom:6px;color:var(--text-dim);font-size:13px}.form-group input,.form-group select,.form-group textarea{width:100%;padding:10px 12px;background:var(--surface2);border:1px solid var(--border);border-radius:var(--radius);color:var(--text);font-size:14px;font-family:inherit}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--primary)}.btn{display:inline-flex;align-items:center;gap:6px;padding:10px 18px;border:none;border-radius:var(--radius);font-size:14px;font-weight:500;cursor:pointer;transition:all .15s;font-family:inherit}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover)}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:var(--danger-hover)}.btn-ghost{background:transparent;color:var(--text-dim);border:1px solid var(--border)}.btn-ghost:hover{color:var(--text);border-color:var(--text-dim)}.btn-sm{padding:6px 12px;font-size:13px}.btn-block{width:100%;justify-content:center}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin-bottom:20px}.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.card-title{font-size:18px;font-weight:600}.table{width:100%;border-collapse:collapse}.table th,.table td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--border)}.table th{color:var(--text-dim);font-weight:500;font-size:13px;text-transform:uppercase;letter-spacing:.5px}.table tr:hover td{background:var(--surface2)}.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:12px;font-weight:600}.badge-active{background:#2ed57326;color:var(--success)}.badge-suspended{background:#ffa50226;color:var(--warning)}.badge-expired,.badge-revoked{background:#ff475726;color:var(--danger)}.page-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.page-title{font-size:24px;font-weight:700}.stats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px;margin-bottom:24px}.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.stat-label{color:var(--text-dim);font-size:13px;margin-bottom:8px}.stat-value{font-size:28px;font-weight:700}.license-key{font-family:SF Mono,Fira Code,monospace;font-size:13px;background:var(--surface2);padding:4px 8px;border-radius:4px;cursor:pointer}.license-key:hover{background:var(--border)}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:1000}.modal{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px;width:440px;max-width:90vw}.modal-title{font-size:18px;font-weight:600;margin-bottom:20px}.modal-actions{display:flex;gap:12px;justify-content:flex-end;margin-top:24px}.alert{padding:12px 16px;border-radius:var(--radius);margin-bottom:16px;font-size:14px}.alert-error{background:#ff47571a;border:1px solid rgba(255,71,87,.3);color:var(--danger)}.alert-success{background:#2ed5731a;border:1px solid rgba(46,213,115,.3);color:var(--success)}.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.detail-item{padding:12px 0}.detail-label{color:var(--text-dim);font-size:13px;margin-bottom:4px}.detail-value{font-size:15px;word-break:break-all}.action-bar{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}.filter-bar{display:flex;gap:12px;margin-bottom:20px;align-items:center}.empty-state{text-align:center;padding:48px;color:var(--text-dim)}.lang-toggle{display:inline-flex;align-items:center;gap:2px;font-size:12px;font-weight:600}.lang-btn{background:none;border:none;color:var(--text-dim);cursor:pointer;padding:2px 6px;border-radius:4px;font-size:12px;font-weight:600;transition:all .15s}.lang-btn:hover{color:var(--text);background:var(--surface2)}.lang-btn.active{color:var(--primary)}.lang-sep{color:var(--border);font-size:11px}