:root{--color-bg: #fafaf7;--color-surface: #ffffff;--color-border: #e8e5dc;--color-text: #1b1b1b;--color-text-muted: #6b6b6b;--color-primary: #1b365d;--color-primary-hover: #142847;--color-success: #2d7a3a;--color-warning: #b8860b;--color-danger: #b91c1c;--radius: 8px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 4px 12px rgba(0, 0, 0, .06)}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;font-size:14px;color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}button{font:inherit;cursor:pointer;border:1px solid var(--color-border);background:var(--color-surface);padding:6px 12px;border-radius:var(--radius);color:var(--color-text);transition:all .15s ease}button:hover{background:#f4f1e8}button:disabled{opacity:.5;cursor:not-allowed}button.primary{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}button.primary:hover{background:var(--color-primary-hover)}button.danger{background:var(--color-danger);color:#fff;border-color:var(--color-danger)}input,select,textarea{font:inherit;padding:6px 10px;border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-surface);color:var(--color-text);width:100%}input:focus,select:focus,textarea:focus{outline:2px solid var(--color-primary);outline-offset:-1px}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--color-border)}th{font-weight:600;color:var(--color-text-muted);font-size:12px;text-transform:uppercase}tbody tr:hover{background:#fafaf7}.badge{display:inline-block;padding:2px 8px;border-radius:10px;font-size:12px;font-weight:500}.badge.free{background:#f0f0eb;color:#4a4a4a}.badge.paid,.badge.active{background:#d4e4d4;color:var(--color-success)}.badge.expired{background:#f5e6d4;color:var(--color-warning)}.badge.cancelled,.badge.refunded{background:#f5d4d4;color:var(--color-danger)}.badge.pending{background:#f5f0d4;color:var(--color-warning)}.badge.paid-order{background:#d4e4d4;color:var(--color-success)}.badge.failed,.badge.closed{background:#f5d4d4;color:var(--color-danger)}.app-layout{display:grid;grid-template-columns:220px 1fr;min-height:100vh}.sidebar{background:var(--color-surface);border-right:1px solid var(--color-border);padding:20px 0}.sidebar h1{margin:0 20px 20px;font-size:16px;color:var(--color-primary)}.sidebar nav a{display:block;padding:8px 20px;color:var(--color-text);border-left:3px solid transparent}.sidebar nav a:hover{background:#fafaf7;text-decoration:none}.sidebar nav a.active{background:#fafaf7;border-left-color:var(--color-primary);color:var(--color-primary);font-weight:500}.main{padding:24px 32px}.main h2{margin:0 0 20px;font-size:20px}.login-page{display:flex;align-items:center;justify-content:center;min-height:100vh;background:var(--color-bg)}.login-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:12px;padding:32px;width:360px;box-shadow:var(--shadow-md)}.login-card h1{margin:0 0 8px;font-size:22px;color:var(--color-primary)}.login-card .subtitle{margin:0 0 24px;color:var(--color-text-muted);font-size:13px}.login-card .field{margin-bottom:14px}.login-card .field label{display:block;font-size:12px;color:var(--color-text-muted);margin-bottom:4px;text-transform:uppercase}.login-card .error{background:#f5d4d4;color:var(--color-danger);padding:8px 12px;border-radius:var(--radius);margin-bottom:12px;font-size:13px}.login-card button{width:100%;padding:10px;margin-top:8px}.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;padding-bottom:12px;border-bottom:1px solid var(--color-border)}.topbar .user{color:var(--color-text-muted);font-size:13px}.toolbar{display:flex;gap:12px;align-items:center;margin-bottom:16px}.toolbar input{max-width:320px}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow-sm)}.detail-grid{display:grid;grid-template-columns:200px 1fr;gap:12px 24px;font-size:14px}.detail-grid .label{color:var(--color-text-muted)}