:root{--color-bg:#fafafa;--color-surface:#fff;--color-text:#1e1e1e;--color-text-muted:rgba(30,30,30,.6);--color-border:rgba(0,0,0,.1);--color-border-strong:rgba(0,0,0,.2);--color-primary:#00b0e2;--color-primary-hover:#0095c0;--color-danger:#d33;--color-success:#0a7;--color-accent-gradient:linear-gradient(90deg,#7de2ff,#1bcdff);--radius-card:16px;--radius-button:12px;--radius-input:10px;--shadow-card:0 1px 3px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.04);--font:Inter,"Inter Display",-apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--color-bg);color:var(--color-text);font-family:var(--font);font-size:14px;line-height:1.5;letter-spacing:-.1px}button{cursor:pointer}button,input,textarea{font:inherit}a{color:var(--color-primary)}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border:1px solid var(--color-border-strong);border-radius:var(--radius-button);background:var(--color-surface);color:var(--color-text);font-weight:500;transition:background .12s}.btn:hover{background:#f5f5f5}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}.btn-primary:hover{background:var(--color-primary-hover)}.btn-danger{color:var(--color-danger);border-color:var(--color-danger);background:var(--color-surface)}.btn-danger:hover{background:#fff5f5}.input{width:100%;padding:10px 12px;border:1px solid var(--color-border-strong);border-radius:var(--radius-input);background:var(--color-surface);color:var(--color-text)}.input:focus{outline:2px solid var(--color-primary);outline-offset:-1px;border-color:var(--color-primary)}label{display:block;font-weight:500;margin-bottom:4px}.field{margin-bottom:16px}.field-error{color:var(--color-danger);font-size:12px;margin-top:4px}.muted{color:var(--color-text-muted)}