:root{--color-bg: #f4f6f8;--color-surface: #ffffff;--color-border: #dde2e8;--color-text: #1c2430;--color-text-muted: #6b7684;--color-primary: #2f5fdb;--color-primary-hover: #2449ad;--color-success: #1f9254;--color-success-bg: #e6f6ee;--color-danger: #c62f3f;--color-danger-bg: #fdeced;--radius: 8px}*{box-sizing:border-box}html,body{margin:0;height:100%}body{background:var(--color-bg);color:var(--color-text);font-family:Segoe UI,Tahoma,Arial,sans-serif;font-size:15px}h1,h2,h3{margin:0}button{font-family:inherit;cursor:pointer}input,select{font-family:inherit;font-size:inherit}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 18px;border-radius:var(--radius);border:1px solid transparent;font-size:14px;font-weight:600;transition:background .15s ease}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--color-primary-hover)}.btn-primary:disabled{background:#a9b7d6;cursor:not-allowed}.btn-secondary{background:transparent;border-color:var(--color-border);color:var(--color-text)}.btn-secondary:hover{background:#eef1f4}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}.field label{font-size:13px;font-weight:600;color:var(--color-text-muted)}.field input{padding:10px 12px;border:1px solid var(--color-border);border-radius:var(--radius);outline:none;background:#fff}.field input:focus{border-color:var(--color-primary)}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:12px;padding:24px}.alert{padding:10px 14px;border-radius:var(--radius);font-size:14px;margin-bottom:16px}.alert-danger{background:var(--color-danger-bg);color:var(--color-danger)}.alert-success{background:var(--color-success-bg);color:var(--color-success)}.badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600}.badge-active{background:var(--color-success-bg);color:var(--color-success)}.badge-expired{background:var(--color-danger-bg);color:var(--color-danger)}