:root{--color-primary: #6366f1;--color-background: #0b0d12;--color-accent: #22d3ee;--color-surface: #151822;--color-border: #23273350;--color-text: #e6e8ee;--color-text-dim: #9aa0ad;--color-danger: #ef4444;--color-success: #22c55e}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--color-background);color:var(--color-text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}a{color:var(--color-accent)}button{font-family:inherit;cursor:pointer}.btn{background:var(--color-primary);color:#fff;border:none;border-radius:10px;padding:10px 16px;font-size:14px;font-weight:600;transition:opacity .15s}.btn:hover{opacity:.9}.btn.secondary{background:transparent;border:1px solid var(--color-border);color:var(--color-text)}.btn.danger{background:var(--color-danger)}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:14px;padding:20px}input,textarea,select{background:var(--color-background);border:1px solid var(--color-border);border-radius:8px;padding:10px 12px;color:var(--color-text);font-size:14px;width:100%}.grid{display:grid;gap:16px}.muted{color:var(--color-text-dim);font-size:13px}.stat-tile{background:var(--color-surface);border:1px solid var(--color-border);border-radius:14px;padding:16px 20px}.stat-tile .value{font-size:28px;font-weight:700}.stat-tile .label{color:var(--color-text-dim);font-size:13px}